JPH0543571B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention [Field of Industrial Application] The present invention relates to a wrapping paper folding mechanism in a paper packaging machine that mechanically and automatically wraps articles using a single sheet of wrapping paper.

[Prior Art and Problems to be Solved by the Invention] Conventionally, hand-folding methods can freely perform fairly complicated folding methods, but mechanical folding has limitations on the folding methods. The present applicant devised a special packaging method using machine folding and filed an application earlier (Japanese Patent Laid-Open No. 62
(Refer to Publication No. 16360), but later efforts were made to realize a paper packaging machine that could be used directly to carry out the packaging method described in the same publication.

An object of the present invention is to provide a wrapping paper folding mechanism among the mechanical parts of this paper packaging machine.

Structure of the Invention [Means for Solving the Problems] That is, the present invention is particularly directed to FIGS. 14 to 22 and FIGS. 23 a, b, c,
d and Figure 33e and Figure 35a, b, c, d,
As shown in the drawings (FIGS. 36 to 42) of other embodiments, an upper surface 501, a lower surface 502, and a front surface 50.
3. Rear surface 504, left side surface 505 and right side surface 506
In a paper packaging machine that wraps an article 500 with a wrapping paper 400, the article 500 is placed below the packaging section 37 and goes up and down, and as the article 500 rises, the lower surface of the wrapping paper 400 supplied to the packaging section 37 is An article holder mechanism 109 lifts the wrapping paper 400 by bringing the upper surface 501 of the article 500 into contact with the article 500;
2, a pair of front and rear lower first folding plates 1 are provided so as to be movable in the front-back direction so as to fold the wrapping paper 400 along
65, 166, and the lower surface 50 of the article 500 from the left and right sides of the front and rear portions of the lower surface 502 of the article 500 in the packaging section 37.
A pair of left and right lower front second folding plates 167, 168 and a left and right pair of lower rear second folding plates 167 and 168 are provided so as to be movable in the left and right direction so as to fold the wrapping paper 400 along
The folding plates 169, 170 and the packaging section 37 store the article 50.
Wrapping paper 400 along the front surface 503 and rear surface 504 of 0 from both left and right sides of the front surface 503 and rear surface 504 of
A pair of left and right front first folding plates 171, 172 and a pair of left and right rear first folding plates 173, 174 are provided so as to be movable in the left and right direction so as to fold the article 500. A front second folding plate 175 and a rear second folding plate 175 are provided so as to be movable in the front and back direction so as to fold the wrapping paper 400 from both sides toward the front surface 503 and the rear surface 504.
It is equipped with a folding plate 176.

[Operation] In the present invention configured as described above, the article 500 is packaged, for example, in the following folding process.
That is, first, as shown in FIG. 33e, when the article pedestal mechanism 109 rises, the article 500 rises, and the upper surface 501 of the article 500 comes into contact with the wrapping paper 400 waiting in the wrapping section 37. wrapping paper 40
0 is lifted. Next, the left and right front first folding plates 171, 172 and the left and right rear first folding plates 17
3,174 are the front surface 503 and the rear surface 5 of the article 500
04, and the left and right bottom front second folding plates 167, 168 and the left and right bottom rear second folding plates 169, 170 fold in along the front of the bottom surface 502 and the rear of the bottom surface 502 of the article 500. , the article 500 has a second folding plate 1 on both the left and right lower front surfaces.
67, 168 and both left and right bottom rear second folding plates 16
9,170. Therefore, the article pedestal mechanism 109 begins to descend. The above state during folding is shown in FIG. 35b.

Then, the front second folding plate 175 and the rear second folding plate 176 are connected to the front side 503 and the rear side 5 of the article 500.
We begin to approach towards 04. The front second folding plate 175 and the rear second folding plate 176 are arranged so that the front second folding plate 175 and the rear second folding plate 176 are connected to the front side 503 and the rear side 504 of the article 500.
When brought into contact via the folding plates 171, 172 and the first folding plates 173, 174 on both the left and right rear surfaces, the first folding plates 165, 166 on both the front and rear lower surfaces begin to close each other from the most open state. After the front second folding plate 175 and the rear second folding plate 176 come into contact with the front surface 503 and the rear surface 504 of the article 500, both the left and right front first folding plates 1
71, 172 and both left and right rear first folding plates 173,
174 begins to open. The above state during folding is shown in FIG. 35c.

Furthermore, first folding plates 165, 166 on both the front and rear lower surfaces
Before it is completely closed, open the second folding plate 1 on the lower left and right sides.
67, 168 and both left and right lower rear rear folding plates 16
9, 170, the front second folding plate 175 and the rear second folding plate 176 begin to open, and the first
The folding plates 165, 166 are completely closed and simultaneously completely opened. The above state during folding is shown in FIG. 35d.

[First Example] Hereinafter, a paper packaging machine according to an example of the present invention will be described as a first example.
This will be explained according to FIGS.

About Wrapping Paper Supply Apparatus A First, the wrapping paper supply apparatus A will be explained according to FIGS. 1 to 8.

The wrapping paper supply device A is connected to a wrapping paper conveyor 3 (second
, and a wrapping paper winding mechanism 4 (see FIGS. 4 to 8) installed on the outside between the rear ends 1a and 2b of both the left and right machine frames 1 and 2. .

The wrapping paper conveyor 3 will be described in detail with reference to FIG. 2 and FIGS. 3 a to 3 e.

Rotation shafts 5 and 6 extending horizontally in the left and right direction are installed between the front end portions 1a and 2a and between the rear end portions 1b and 2b of the left and right machine frames 1 and 2. are threaded parts 5a, 6a and threaded parts 5b, 6b
(The direction of advance of the screw is opposite to that of the threaded portions 5a and 6a). Both threaded portions 5a of the front rotation shaft 5,
A female threaded member 7 is screwed into 5b. Belt conveyance sections 8 extend in the front and back direction on both left and right sides between the front and rear rotation shafts 5 and 6, and front ends of outer frames 9 of both conveyance sections 8 are fixed to the lower sides of both female screw members 7. A rear rotation shaft 6 is inserted through the rear end portions of both outer frames 9.
A female threaded member 10 fixed to the rear end portions of both outer frames 9 is screwed into both threaded portions 6a and 6b of this rotation shaft 6.

A lower drive shaft 12 is installed behind the rear rotation shaft 6 between the rear ends 1b and 2b of both the left and right machine frames 1 and 2, and an upper support shaft 11 and a tension shaft 13 are installed. It is constructed so that it cannot rotate. A lower drive pulley 15 is supported on the lower drive shaft 12 so as to be integrally rotatable within the outer frames 9 of both the transport sections 8 and movable in the axial direction together with the outer frames 9. The upper support shaft 11 has an outer frame 9 of both conveyance sections 8.
An upper drive pulley 14 is rotatably supported therein and movable in the axial direction together with both outer frames 9. Tension pulleys 16 are rotatably supported on both left and right sides of the tension shaft 13, and both outer frames 9 are fitted to the tension pulleys 16 so as to be movable in the axial direction. Another tension pulley 17 is supported at the rear end portions of both outer frames 9 below this tension pulley 16. Upper and lower driven pulleys 18 and 19 and upper and lower tension pulleys 20 and 21 are supported at the front ends of both outer frames 9. Between the upper and lower driven pulleys 18, 19 and the upper and lower drive pulleys 14, 15, there are upper and lower conveyor belts 22,
23 is each tension pulley 16, 17, 2
It is spanned through 0 and 21. Right side machine frame 2
A belt drive motor 24 is attached to the inside of the rear end portion 2b, and its rotation is controlled by gears 25, 26, 27, 2.
8 etc., to the lower drive shaft 12, and the rotation of the lower drive shaft 12 is transmitted to the upper drive pulley 14 via gears 29, 30 on both left and right sides.
It is now being transmitted to When the lower drive shaft 12 rotates, both the upper and lower conveyor belts 2
2 and 23 are adapted to rotate in the direction of the arrow a while in contact with each other.

A motor 31 for positioning the belt conveying section in the left-right direction is attached to the inside of the front end 1a of the left machine frame 1.
An interlocking chain 35 is strung through a tension sprocket 36 between a driving sprocket 32 fixed to the output shaft 31a and driven sprockets 33, 34 fixed to the left ends of the rotation shafts 5, 6. has been done. The rotation of the output shaft 31a of this motor 31 is transmitted to both rotating shafts 5 and 6 via this interlocking chain 35. When the rotation shafts 5 and 6 rotate, the female screw members 7 and 10 move on the screw portions 5a, 5b, 6a, and 6b, and the left and right belt conveying portions 8 move the packaging portion 37 between them. They are arranged to approach and separate from each other with respect to the center position 37a in the left-right direction.

The machine frame 2 on the right side near the rear rotation axis 6
A position detecting potentiometer 38 is attached to the inner side of the position detecting potentiometer 38, and gears 39a, 3
9b.

An article guide plate 40 extending in the front-rear direction is attached to the inside of the outer frame 9 of both belt conveying sections 8, and its front portion 40a projects forward from the front end of the outer frame 9. This article guide plate 40 is adapted to move in the left-right direction together with the belt conveyance section 8.

In particular, creasing rollers 410 and 411 are provided on the support shaft 11 and the drive shaft 12 adjacent to the inner side of the outer frame 9 of both the conveyance sections 8. Drive shaft 1
Both creasing rollers 411 on the top of the sheet 2 are attached to the outer frame 9 via a bracket 414, and are attached to the drive shaft 12.
It is supported so as to be able to rotate integrally with the outer frame 9 and to be movable in the axial direction together with both outer frames 9. A protruding strip 413 having a V-shaped cross section and extending continuously in the entire circumferential direction is formed on the outer periphery of both crease applying rollers 411. Further, both crease applying rollers 410 on the support shaft 11
is attached to the upper drive pulley 14, and the support shaft 1
1 and is supported so as to be movable in the axial direction together with both outer frames 9. A groove 412 having a V-shaped cross section and extending continuously in the entire circumferential direction is formed on the outer periphery of both crease applying rollers 410, and the groove 412 and the protrusion 413 are fitted into each other. The grooves 412 and the protrusions 413 are formed between the opposing inner edges of the pair of conveyor belts 22 and 23 to hold the wrapping paper 400.
It is located on the trajectory along the conveyance direction a. Concave grooves 412 of a pair of left and right creasing auras 410 and protrusions 413 of a pair of left and right creasing rollers 411
The distances S410 and S411 are between the two article guide plates 40
It is the same as the left-right direction spacing S40.

In addition, both the rotation shafts 5, 6, the female screw members 7, 1
0. Motor 31 for setting the horizontal position of the belt conveying section
and the interlocking chain 35 etc., the left-right direction spacing S8 of both belt conveying sections 8 and both crease applying rollers 4
10,411 horizontal spacing S410, S411
and the horizontal distance S40 between both article guide plates 40.
according to the length L in the left-right direction of the article 500
A mechanism for adjusting the center position 37a in the left-right direction of 7 is configured.

The wrapping paper feeding mechanism 4 will be described in detail with reference to FIGS. 4 to 8.

As shown in FIGS. 4 and 5, both upper and lower mounting tables 41,
42 is supported by a frame 43 at its rear end so as to be rotatable in the vertical direction by a hinge 44, and one end 45 of hanging wires 45, 46 is provided on both left and right sides of its front end.
a, 46a are connected. Both left and right machine frames 1 and 2
A pair of upper and lower rotating shafts 47, 48 are installed on the lower side between the rear end portions 1b, 2b, and winding drums 49, 50 fixed to both left and right ends of the rotating shafts 47, 48 are connected to the hanging wires 45, 46 and the like. The ends 45b and 46b are rollers 49
a, 50. Both rotating shafts 47, 48 are linked to wire winding motors 51, 52 attached to both the left and right machine frames 1, 2. When both rotation shafts 47 and 48 are rotated by the drive of these motors 51 and 52, both hanging wires 4
Both the mounting tables 41 and 42 are configured to be tilted in the vertical direction via the mounting tables 5 and 46.

A rear positioning plate 53 is placed on both the upper and lower mounting tables 41, 42 so as to be movable in the front and back direction, and guide portions 53a at both left and right ends thereof are movably supported along the left and right edges of the mounting tables 41, 42. ing. An interlocking shaft 5 is provided on the lower side of the front end of both the upper and lower mounting tables 41 and 42.
A sprocket 55 is fixed to the left and right ends of the interlocking shaft 54 on the outside of the mounting tables 41 and 42, and a sprocket 56 is supported on both left and right sides of the rear ends of the mounting tables 41 and 42. An interlocking chain 57 is spanned between them. Both guide plates 53a of the rear positioning plate 53 are connected to both interlocking chains 57.
is connected to. When the operator moves the rear positioning plate 53 in the front-back direction, the interlocking shaft 54 rotates via both interlocking chains 57.

Left and right positioning plates 58 and 59 are supported on both the upper and lower mounting tables 41 and 42 in front of the rear positioning plate 53 so as to be movable in the left-right direction along the elongated hole 60. A rack plate 61 is provided with a long hole 60 on the lower side of the mounting tables 41 and 42 on the lower side of both positioning plates 58 and 59.
A pinion 62 is meshed between both rack plates 61. When the operator moves one of the left and right positioning plates 58 and 59 in the left and right direction, the left and right positioning plates 58 and 59 are moved in the left and right direction of the packaging section 37 via both the rack plates 61 and the pinion 62. They are arranged to approach and separate from each other with respect to the center position 37a.

In the vicinity of the interlocking shaft 54, both the upper and lower mounting tables 4
A potentiometer 63 for paper size detection is attached to the left side of 1 and 42, and a gear 6 is connected to the interlocking shaft 54.
4 and 65. Further, near the pinion 62, a paper size detection potentiometer 66 is attached to the lower side of both the upper and lower mounting tables 41, 42, and is interlocked with the pinion 62 via gears 67, 68.

Two types of wrapping paper 400 of different sizes are placed on both the upper and lower mounting tables 41 and 42, and the respective positioning plates 53 and 5 are placed in accordance with the respective wrapping papers 400.
8 and 59 are adapted to be moved and adjusted.

As shown in FIGS. 6 to 8, the upper and lower mounting tables 4
Adjacent to the front ends of the left and right machine frames 1 and 2, support plates 69 and support tubes 70 are installed on both upper and lower sides between the rear ends 1a and 2b of the left and right machine frames 1 and 2, respectively. Upper and lower guide passages 73 and 74 are formed between the two upper guide plates 71 and between the two lower guide plates 72 attached. In front of the support plate 69 and the support tube 70, a pair of upper and lower mounting plates 75, 76 are installed between the rear ends 1b, 2b of both the left and right machine frames 1, 2.
The intermediate guide passage 7 between the two guide plates 77 attached to the
8 is formed. Entrance 7 of this guide passage 78
8a is connected to an outlet 74b of the lower guide passage 74, and an outlet 78b of this guide passage 78 is connected to an outlet 73b of the upper guide passage 73, and this outlet 73b is connected to the outlet 73b of the upper guide passage 73. This corresponds to the rear end portions of both the left and right belt conveying sections 8. Entrance 73 of both upper and lower guide passages 73, 74
a, 74a correspond to the front ends of both the upper and lower mounting tables 41, 42. The upper guide plate 71 and the lower guide plate 72 constituting both the upper and lower guide passages 73, 74 are provided with cuts 71a, 7 at positions shifted to one side in the left-right direction with respect to the center position 37a in the left-right direction of the packaging portion 37.
2a is formed.

Both upper and lower support plates 69 have upper and lower notches 71.
a, 72a, a U-shaped support member 79 is supported so as to be rotatable in the vertical direction about a drive shaft 80, and a rotating roller 81 is supported within this support member 79 by a rotation shaft 82. . This drive shaft 80
The rotation shaft 82 is interlocked with each gear 83. An air cylinder 84 for holding down the wrapping paper is attached to the mounting plate 85 and the support tube 70 above both the upper and lower support members 79. The piston rod 84a is connected to the support member 79, and the piston rod 84a
The support member 79 is designed to move up and down as a moves forward and backward. Wrapping paper feeding motors 86 and 87 are attached to the inside of the left machine frame 1 above the upper and lower support plates 69, and the rotation of the upper motor 86 is transmitted to the upper drive shaft 80 via a belt 90. At the same time, the rotation of the lower motor 87 is transmitted to the lower drive shaft 80 via the belt 95. The rotation of both the upper and lower drive shafts 80 is controlled by the rotation roller 8 through each gear 83 and the rotation shaft 82 of the support member 79.
1.

A limit switch 104 is attached to the front side of both the upper and lower support plates 69, and as the upper and lower support members 79 move upward, the actuating plate 105a and the support plate 69 above it are attached.
This limit switch 104 is turned off via the upper actuation rod 105b.

Both upper and lower support tubes 7 correspond to the rotating roller 81.
A pair of left and right holding members 106 are supported on the rear side of 0 so as to be movable up and down, and a hook portion 106b is provided at the upper end of the holding member 106, which projects rearward from a vertical portion 106a at the entrances 73a, 74a of both the upper and lower guide passages 73, 74. is formed. This hook portion 106b is attached to both the upper and lower mounting tables 4.
The front end of the wrapping paper 400 placed on the wrapping paper 1, 42 can be pressed from above by the weight of the pressing member 106. Additionally, air jet nozzles 107 are attached to both the upper and lower support tubes 70 corresponding to the rotating rollers 81, and the upper and lower mounting tables 4
Air can be blown out to the front end of the wrapping paper 400 on the wrapping paper 1,42.

A wrapping paper detection sensor 108 is attached near the rear ends of both left and right belt conveying sections 8 of the wrapping paper conveying conveyor 3.

Regarding Article Supply Apparatus B Next, article supply apparatus B will be explained according to FIGS. 1 and 9 to 13.

The article supply device B includes an article receiving mechanism 10 installed below the wrapping section 37 of the wrapping paper transport conveyor 3.
9 (see FIGS. 9 to 11) and the article receiving mechanism 109 from the outside between the front ends 1a and 2a of the left and right machine frames 1 and 2 below the wrapping paper transport conveyor 3.
It consists of an article transport conveyor 110 (see Figures 12 and 13) installed over the entire area.

The article pedestal mechanism 109 will be described in detail based on FIGS. 9 to 11.

Support plates 111 are installed at the upper and lower parts between the left and right machine frames 1 and 2.
A, 111B are constructed, and a central mounting rod 112 is vertically supported by a bearing portion 111a protruding forward at the center in the left-right direction so as to be movable up and down. This center mounting rod 112 is located directly below the center position 37a of the packaging section 37 in the left-right direction. A central mounting rod 112 is located between the upper and lower bearing portions 111a.
A mounting block 113 is fixed to the mounting block 113, and the mounting block 113 has a support rod 114 extending horizontally in both left and right directions and a support rod 1 extending horizontally forward.
15 is fixed.

A support block 116 is fitted into the left and right support rods 114 so as to be movable in the left and right direction, and a rear mounting rod 117 is vertically erected on the support block 116. The upper support plate 111A
A slide shaft 119 and a guide rod 120 are installed on mounting plates 118 fixed to the left and right sides of the top so as to extend in the left-right direction, and slide plates 121 are fitted to the left and right sides of this slide shaft 119 so as to be movable in the left-right direction. has been done. This left and right slide plate 121
The rear end portion is engaged with the guide rod 120 so as to be movable in the left and right direction. Three guide rollers 122 are supported on the front side of this slide plate 121.
A rear mounting rod 117 is inserted between each guide roller 122 so as to be movable up and down. The left and right slide plates 121 are connected to the outer frame 9 of the left and right belt conveyor sections 8 of the wrapping paper conveyor 3 by a connecting plate 121a. When both the belt conveyance sections 8 approach and separate in the left-right direction, both the slide plates 121 move in the left-right direction along the slide shaft 119 and the guide rod 120, and this movement causes the left and right rear mounting rods 11 to move toward each other.
7 move along both support rods 114 and move toward and away from each other with respect to the center mounting rod 112.

A slide plate 123 is fitted into the support rod 115 so as to be movable in the front-rear direction, and front mounting rods 124 are vertically provided on both left and right sides of the slide plate 123. Front end 1 of both left and right machine frames 1 and 2
A support plate 125 is installed on the lower side between a and 2a,
A pair of left and right rotation shafts 126 and 127 are supported between the left and right sides of the support plate 125 and the left and right sides of the upper support plate 111A. The left and right rotation shafts 126, 127 have threaded portions 126a, 1
27a is formed, and these threaded parts 126a, 127
A female screw member 128 is screwed into the portion a. A movable plate 129 is installed between both female screw members 128. Mounting plates 130 erected on both left and right sides near the center of this movable plate 129 each have three
Guide rollers 131 are supported, and a front mounting rod 124 is inserted between each guide roller 131 so as to be movable up and down.

A motor 132 for setting the position of the front mounting rod in the longitudinal direction is mounted on the support plate 125 inside the front end 2a of the right machine frame 2, and a sprocket 133 interlocked with this motor 132 and the two rotation shafts 12
Sprocket 1 attached to the front end of 6,127
34, 135 are interlocked by an interlocking chain 136 via respective sprockets 137, 138, 139, 140. Then, the interlocking chain 136 is rotated by the motor 132, and both rotation shafts 12
6, 127 rotate, the female screw member 128 moves in the front-rear direction along the threaded portions 126a, 127a, and along with this movement, both front mounting rods 124 move in the front-rear direction and approach the center mounting rod 112. Separate.

A position detection potentiometer 141 is attached to the support plate 125 adjacent to the motor 132,
Each gear 142, 14 is connected to the rotation shaft 127 on the right side.
3,144,145.

12th about the article conveyor 110;
This will be explained in detail based on FIG.

A pair of left and right frames 146, 147 are connected to the support plate 1.
11A and 125 (see FIG. 9), and a drive shaft 148 is installed in the center between both frames 146 and 147 in the front-rear direction. An article conveyance drive motor 149 is attached to the support plate 125, and its rotation is transmitted to a drive shaft 148 via a belt 151. A plurality of sprockets 153 are fixed to this drive shaft 148. Behind this drive shaft 148, both the left and right frames 14
A plurality of support plates 155 are supported in a cantilever shape toward the rear on a mounting plate 154 installed between 6 and 147, and a plurality of support plates 155 are supported at the tip of each support plate 155 slightly in front of the central mounting rod 112. Sprocket 15
6 is supported. Both left and right frames 146, 147
A driven shaft 157 is installed between the front ends of the driven shaft 157, and a plurality of sprockets 158 are fixed to the driven shaft 157. Above the drive shaft 148, between the left and right frames 146, 147 is a tension shaft 15.
9 is installed, and a plurality of levers 160 fixed to this tension shaft 159 have sprockets 161.
is supported. Each of the sprockets 153,
A plurality of conveyor chains 162 are wound around the conveyor chains 156, 158, and 161 in parallel.

An article stopper plate 16 is mounted on the upper support plate 111A slightly behind the center mounting rod 112.
3 is attached so as to extend in the left and right direction. The rear mounting rod 117 moves in the left-right direction along the stopper plate 163 between the article stopper plate 163 and the rear end of each chain 162, and the front mounting rod 124 moves in the same direction between each chain 162. It moves back and forth along the chain 162.

The moving plate 129 (the ninth
A limit switch 164 (see figure) is attached to the limit switch 164, and is actuated by the article 500 carried on each chain 162 in the direction of the arrow b.

In addition, in the article pedestal mechanism 109, the support rod 114, the support block 116, the slide shaft 119, the slide plate 121, the guide roller 1
22 etc. constitute a mechanism for adjusting the lateral distance S117 between the left and right rear mounting rods 117 with respect to the lateral center position 37a of the packaging section 37 according to the lateral length L of the article 500. The connecting plate 121a of the slide plate 121 constitutes a mechanism that interlocks with the left and right movement of both the left and right belt conveying sections 8 of the wrapping paper conveying conveyor 3. In addition, the support rod 115, the slide plate 123, and the rotation shaft 12
6,127, female thread member 128, moving plate 129,
The guide rollers 131, the motor 132, the chain 136, etc. are used to control the loading rods 124 on both front sides of the article stopper plate 163 of the article conveyor 110.
The longitudinal distance M124 is the longitudinal width W of the article 500.
A mechanism is configured to adjust accordingly.

Regarding the wrapping paper folding device C Next, the wrapping paper folding device C will be explained according to FIGS. 1 and 14 to 22.

The wrapping paper folding device C is the wrapping paper conveyor 3.
A pair of front and rear first folding plates 165, 166 are provided above and fold the wrapping paper 400 along the lower surface 502 of the article 500 (see FIG. 35a) from both front and rear sides of the lower surface 502 (see FIG. 14). and a pair of left and right lower front second folding plates 167 and 168 for folding the wrapping paper 400 along the lower surface 502 of the article 500 from both left and right sides of the front and rear portions thereof.
(See Figure 20) and a pair of left and right bottom rear second
Wrapping paper 4 is inserted along the folding plates 169, 170 (see FIG. 17) from both left and right sides of the front surface 503 and rear surface 504 of the article 500.
A pair of left and right front first folding plates 17 into which 00 is folded
1,172 (see Figure 20) and a pair of left and right rear first folding plates 173, 174 (see Figure 17)
and a second front folding plate 175 for folding the wrapping paper 400 from both front and rear sides of the front surface 503 and rear surface 504 of the article 500.
(See Figure 20) and rear second folding plate 176
(See Fig. 17). Each of the folding plates 165 to 176 will be described in detail below.

As shown in FIG. 14, rails 177 are attached to the front inner surfaces of both the left and right machine frames 1 and 2 so as to extend in the front-rear direction, and a support plate 178 is installed between the rails 177.
is installed so that it can move forward and backward. A lower first folding plate 165 on the front side is attached to the center portion of the support plate 178 in the left-right direction. The lower first folding plate 165 consists of a pair of left and right folding parts 179 and a folding part 180 between them.
The entire rear portion 179a of the folding portion 179 projects rearward from the support plate 178, and a protrusion 179b extending forward is formed at the opposite inner edge of the folded portion 179. The intermediate folded portion 180 is formed by both protrusions 179.
It is rotatably supported around a shaft 181 slightly below between b and is always biased upward, and extends rearward and upward from this shaft 181 in an oblique manner so as to be flush with the rear portions 179a of both the left and right folding portions 179. It's getting old.

A mounting plate 182a attached to the central part of the left and right machine frames 1 and 2 in the longitudinal direction, and a rear end part 1b of both the machine frames 1 and 2,
A pair of left and right rails 182 are attached to extend in the front-rear direction between a mounting plate 182b installed between the two rails 182, and a support plate 18 is installed between the rails 182.
3 is constructed so as to be movable in the front and rear directions. A lower first folding plate 166 on the rear side is attached to the center portion of the support plate 183 in the left-right direction. The lower first folding plate 166 consists of a pair of left and right folding parts 184 and a folding part 185 between them, and the front parts 184b of the pair of left and right folding parts 184 protrude forward from the support plate 183 and slope downward, When the front and lower first folding plates 165 and 166 approach each other, the rear portions 179a of the left and right folding parts 179 of the front lower first folding plate 165 on the front part 184b of the folding part 184 overlap. The intermediate folding part 185 is rotatably supported around a shaft 186 slightly below between the front parts 184b of the left and right folding parts 184, and is always biased upward, and is tilted rearward and upward from this shaft 186. It extends to be flush with the rear portions 184a of both the left and right folding portions 184.

Below the front rail 177, a pair of front and rear sprockets 1 are installed on the inner surfaces of both the left and right machine frames 1 and 2.
87a, 187b, 188a, 188b are mounted on the same axis, and their sprocket 187
Chains 189 and 190 are stretched between a, 187b, 188a and 188b. Both ends of the front support plate 178 are attached to a chain 189 between both sprockets 187a and 187b, and a tilting lever 191 is attached to the other chain 190. A rod 192 is connected between both ends of the rear support plate 183 and this lever 191. When the chains 189 and 190 rotate due to the tilting of the lever 191, the front support plate 178 moves forward and backward along the rail 177, and the rear support plate 183 moves along the rail 182 via the rod 192. The first folding plates 165 and 166 on both the front and rear lower surfaces approach and separate from each other in the wrapping section 37.

As shown in FIGS. 16 to 19, the first
A fixed support stand 193 is installed between the left and right machine frames 1 and 2 above the folding plates 165 and 166, and support members 19 are installed on both left and right sides of this fixed support stand 193.
4,195 are supported along rails 196 so as to be movable in the left and right direction. Both support members 19
A support block 198 is attached to the lower end of a connecting plate 197 extending downward from 4,195, and a guide plate 199 is erected upward inside this support block 198. This support block 19
8, the lower rear second folding plate 169,1
70 is supported so as to be movable in the left and right direction via a slider 200. A wire 201 is introduced into this support block 198 and connected to the slider 200, and a compression coil spring 2 is wound around the outer circumference of the wire 201 within this support block 198.
02, the slider 200 is pushed inward, and the lower rear second folding plates 169, 170 are pressed against the support block 1.
98 to the packaging section 37 passing under the guide plate 199.
It is starting to protrude towards the And wire 2
01 is pulled against the bias of the compression coil spring 202, the lower rear second folding plates 169, 170 are retracted from the packaging section 37.

A mounting frame 204 is attached to the lower end of a connecting plate 203 extending downward from the outside of the support block 198.
The outer frames 9 of the left and right belt conveying sections 8 of the wrapping paper conveying conveyor 3 are fitted into the mounting frame 204. Above this outer frame 9, inside the mounting frame 204, a paper presser 205 extending in the front-rear direction on both left and right sides corresponding to the packaging portion 37 is supported so as to be rotatable in the left-right direction about a shaft 206. . A bolt 208 fixed to the paper presser 205 is inserted into a bracket 207 attached to the mounting frame 204, and a spring wound around the bolt 208 is inserted between the paper presser 205 and the bracket 207. 209 inwardly, the bolt 2
The stopper nut 210 screwed into the bracket 207 comes to rest when it is engaged with the bracket 207. In this stationary position, the paper presser 205 is connected to the outer frame 9 of the left and right belt conveying sections 8 of the wrapping paper conveyor 3 and the guide plate 19 inside the support block 198.
9 protrudes slightly toward the packaging section 37 side.

A drive shaft 211 is installed between the left and right machine frames 1 and 2 below the fixed support base 193, and the support members 194 and 195 are connected to the drive shaft 211.
A connecting plate 197 is supported so as to be movable in the left-right direction. A folding plate position setting motor 213 is installed below the center portion of the fixed support base 193 in the left and right direction.
and are interlocked via a belt 216.

A slider 2 is attached to both the support members 194 and 195.
17 is supported so as to be movable in the left and right direction along a rail 218, and this slider 217
The rear first folding plates 173, 174 are on the front side of the shaft 2.
It is supported so as to be rotatable in the left and right direction about 19. The rear first folding plates 173, 174 include a support portion 220 extending horizontally outward from the shaft 219, an intermediate portion 221 extending vertically downward from the tip of the support portion 220, and an oblique shape extending inward and downward from the lower end of the intermediate portion 221. This diagonal portion 220 is adjacent to the guide plate 199 at the rear thereof. The inside of this diagonal portion 222 forms a diagonal folded edge 222a. Both left and right support members 19
A bracket 223 is fixed to 4,195, and this bracket 223 and the rear first folding plate 173,1
A compression coil spring 224 is installed between the spring 74 and the spring 74. This compression coil spring 224 causes the slanted portion 222 of the rear first folding plate 173, 174 to
19 to rotate toward the packaging section 37, and the lower end of the slanted section 222 is located inside the guide plate 199 on the same horizontal plane as the lower rear second folding sections 169, 170. It is starting to protrude towards the A wire 225 is introduced into this bracket 223 and connected to the rear first folding plates 173, 174. When the wire 225 is pulled, the rear first folding plates 173 and 174 rotate about the shaft 219 in the direction of retreating from the packaging section 37 against the biasing force of the compression coil spring 224. . A threaded rod 226 is rotatably supported by the connecting plate 197 of the left and right support members 194, 195 in a state that projects inward, and a female threaded portion 227 formed on the slider 217 is screwed into this threaded rod 226. has been done. Both left and right support members 194, 19
Gear attachment part 197 attached to connection plate 197 of No. 5
A has a gear 228 movable left and right on the drive shaft 211 and a gear 2 on a threaded rod 226.
29 is supported, and this threaded rod 226 is connected to the drive shaft 2
11 via these gears 228 and 229.

A bracket 230 provided below the center portion of the fixed support base 193 in the left and right direction has a pair of left and right rear second folding plates 176 and a rear first folding plate 173, 174.
It is supported so as to be rotatable in the front-rear direction about a shaft 231 at the rear. This bracket 230
A shaft 232 is rotatably supported on the shaft 232, and levers 233 are fixed to both left and right ends of the shaft 232. This lever 233 and the rear second folding plate 176 are connected to the link 23
4, and are interlocked so that the rear second folding plates 176 rotate in the same direction. A bracket 235 is fixed to the fixed support base 193 above one of the levers 233.
35 and the lever 233 is a compression coil spring 2.
36 is installed. This compression coil spring 23
6, the rear second folding plate 176 is moved to the lever 233.
and the rear first folding plate 17 is urged to rotate forward about the shaft 231 via the link 234.
3,174 and adjacent to it. A wire 237 is introduced into this bracket 235 and connected to the lever 233. When the wire 237 is pulled, the rear second folding plate 176 rotates about the shaft 231 in a direction to retreat from the packaging section 37 against the bias of the compression coil spring 236.

A position detection potentiometer 238 is attached to the left connecting plate 197 and is interlocked with the threaded rod 226 via gears 239 and 240.

On the other hand, as shown in FIGS. 16 and 20 to 22, both the left and right machine frames 1 and 2
A movable support base 241 is supported between them so as to be movable in the front and rear directions along rails 242. Support members 243, 2 are provided on both left and right sides of this movable support stand 241.
44 is supported so as to be movable in the left and right direction along the rail 245. These support members 243, 244
A support block 247 is attached to the lower end of the connecting plate 246 extending downward from the support block 247.
A guide plate 248 is provided inside the guide plate 47 and stands upwardly. A slider 249 is supported within this support block 247 so as to be movable in the left and right direction.
The lower front second folding plate 16 is attached to this slider 249.
7,168 is attached. A wire 250 is introduced into the support block 247 and connected to the slider 249. A compression coil spring 251 is wound around the outer periphery of the wire 250 in the support block 247 , and the compression coil spring 251 pushes the slider 249 inward, so that the lower front second folding plates 167 and 168 are removed from the support block 247 . It passes under the guide plate 248 and projects into the packaging section 37 . When the wire 250 is pulled, the lower front second folding plates 167 and 168 are retracted from the packaging portion 37 against the bias of the compression coil spring 251.

The support block 247 has an interlocking plate 2 extending forward.
52 is attached, and a plurality of guide rollers 253 are supported on this interlocking plate 252. An interlocking plate 254 extending rearward is attached to the female screw member 7 fixed to the front ends of both the left and right belt conveying parts 8 of the wrapping paper conveyor 3, and the intermediate part of this interlocking plate 254 in the front and back direction is connected between each guide roller 253. It is supported by

A slider 255 is supported by the support members 243 and 244 so as to be movable in the left-right direction along a rail 256. The rear first folding plates 173, 174
A shaft 219, which is the center of rotation, extends forward and is inserted through the slider 255, so that the slider 255 is movable in the front and rear directions with respect to the shaft 219. This shaft 219 includes a front first folding plate 171,
172 are integrally movably supported. The front first folding plates 171, 172, like the rear first folding plates 173, 174, are composed of a support portion 257, an intermediate portion 258, an oblique portion 259, and a folding edge 259a thereof. And the rear first folding plates 173, 17
4 rotates, the front first folding plates 171, 172
are also adapted to rotate in the same direction via this shaft 219.

Connection plate 246 for both left and right support members 243 and 244
A threaded rod 260 extending inward is rotatably supported by a female threaded portion 26 formed on the slider 255.
1 is screwed onto this threaded rod 260. On the fixed support stand 193 side, both left and right support members 19
Gear attachment part 197a of connection plate 197 of 4,195
A gear 262 that meshes with a gear 229 on a threaded rod 226 is supported, and the rotation center shaft 2 of the gear 262 is
63 extends forward. Movable support stand 241
A gear 264 on a threaded rod 260 and a gear 2 meshing with the gear 264 are attached to the gear attachment portion 246a of the side connecting plate 246.
65 is supported, and this gear 265 is connected to the shaft 26.
3, and is supported so as to be integrally rotatable and movable in the front-back direction.

A bracket 266 is attached to the center portion of the movable support base 241 in the left and right direction, and a second front folding plate 175 is fixed to a shaft 267a rotatably supported on both left and right sides of the bracket 266. A shaft 267b is rotatably supported between mounting rods 241a extending downward from both left and right ends of the movable support base 241, and the shaft 267a is rotatably supported below the same shaft 267b. There is. Lever 268, 269 is fixed to both ends of both upper and lower shafts 267b, 267a, respectively, and a link 2 is connected between both levers 268, 269.
70 are connected, and the two levers 268, 269 and the link 270 constitute a four-bar parallel link mechanism. A bracket 271 is attached to the left end of the movable support base 241.
A compression coil spring 272 is connected between the lever 268 and the lever 268.
is attached, and the compression coil spring 272 urges the front second folding plate 175 to rotate rearward about the shaft 267a via the four-bar parallel link mechanism, and the first folding plate 171, 172 in front of and adjacent to this. A wire 273 is introduced into this bracket 271 and connected to a lever 268. And wire 273
When pulled, the second front folding plate 175 rotates about the shaft 267a in the direction of retreating from the packaging section 37 against the bias of the compression coil spring 272.

Sprockets 134 and 13 on which the interlocking chain 136 is stretched at the front end sides of both the left and right machine frames 1 and 2;
5, 137, 138, 139, 140 (see Fig. 11), the upper left and right sprockets 137,
The mounting plate 2 has a rotation center axis 274 extending rearward, and its rear end extends from both the left and right machine frames 1 and 2.
75 so as to be rotatable. This axis 2
74 is formed with a threaded portion 274a, and a female threaded member 276 is screwed into this threaded portion 274a.
A long hole 277 extending in the left-right direction is formed at the front end of the interlocking plate 252 extending forward from the support block 247 on the movable support stand 241 side, and the female thread member 276 is fitted into this long hole 277 so as to be movable in the left-right direction. and is movable integrally with the interlocking plate 252 in the front-back direction.

Then, when the left and right belt conveyance sections 8 of the wrapping paper conveyance conveyor 3 approach and separate, the left and right support members 194 and 195 move in the left-right direction on the fixed support stand 193 side via the mounting frame 204 and the connecting plates 203 and 197. At the same time, both the left and right support members 243 and 244 on the movable support stand 241 side move in the left-right direction via the interlocking plate 254 on both the belt conveying sections 8 side, the interlocking plate 252 and the connecting plate 246 on the movable support stand 241 side. As the rear support members 194, 195 and the front support members 243, 244 move in the left-right direction, the left and right rear first folding plates 173, 1
74, both left and right front first folding plates 171, 172, both left and right bottom rear second folding plates 169, 170, both left and right bottom front second folding plates 167, 168, each guide plate 199, 248, and both left and right paper presser 205. They simultaneously approach and move away from each other with respect to the center position 37a of the packaging section 37.

Furthermore, when the drive shaft 211 rotates on the fixed support stand 193 side, the rotation is transmitted to both threaded rods 226 on the fixed support stand 193 side, and the rotation is transmitted to the both screw rods 226 on the fixed support stand 193 side.
The gear 262 and the shaft 26 are also connected to the threaded rod 260 on the first side.
3. Transmitted via gears 265, 264 to both rear sliders 217 and both front sliders 255
are connected to the rear support members 194, 195 and the front support members 243, 2 through the female threaded portions 227, 261.
44 in the left and right direction. Therefore, the left and right rear first folding plates 173, 174 and the left and right front first folding plates 171, 172 are the guide plates 199, 24.
8, etc., and the lower ends of those inclined portions 222, 259 are connected to the guide plate 1.
99,248 to the packaging section 37 can be changed.

The interlocking plate 252 also moves in the left-right direction on the movable support base 241 side, and the female screw member 276 fitted into the long hole 277 at the front end of the interlocking plate 252
2 moves in the left-right direction along the same elongated hole 277.

On the other hand, the shaft 27 to which this female screw member 276 is screwed
4 rotates, the female screw member 276 engages the interlocking plate 25.
2, and this movement causes the entire movable support base 241 to move in the front and rear direction with respect to the fixed support base 193. As a result, the movable support base 24
1 side lower front second folding plates 167, 168, front first folding plates 171, 172, and front second folding plate 1
75 and the guide plate 248 also move in the front and back direction, and the lower rear second folding plate 1 on the fixed support base 193 side
69, 170, approach and move away from the rear first folding plates 173, 174, the rear second folding plate 176, and the guide plate 199. Also, the interlocking plate 252 on the movable support stand 241 side is the interlocking plate 252 on the wrapping paper transport conveyor 3 side.
54 via each guide roller 253.

By the way, the vertical surface on which the rear first folding plates 173, 174 on the side of the fixed support stand 193 rotate is located almost directly above the article stopper plate 163 of the article conveyor 110, and this vertical surface is located at the packaging reference position. It's becoming P.

Note that the fixed support stand 193 and the movable support stand 24
1. Support members 194, 195, 243, 244,
Connecting plate 197, 246, support block 198, 2
47 etc., a pair of left and right lower face front and rear second folding plates 167, 168, 169, 17 shown in FIG.
0 left and right spacing when folding S167, S169 and a pair of left and right front and rear double-sided first folding plates 171, 17
Left and right spacing S1 when folding 2,173,174
71, S173 with respect to the left-right center position 37a of the packaging section 37 according to the left-right length L of the article 500.
54 and the like constitute a mechanism that interlocks with the left and right movement of both the left and right belt conveyance sections 8 of the wrapping paper conveyance conveyor 3. Further, the fixed support stand 193, the movable support stand 241, the support members 194, 195, 243, 2
44, connecting plate 197, 246, support block 19
8,247, brackets 230, 266, etc., the second folding plate 16 on both the front and rear sides of the lower surface shown in FIG.
7, 168, 169, 170 when folding, front and back spacing M167, M168, front and rear both first folding plates 1
71, 172, 173, 174 when folded back and forth, M171, M172, and front and back double-sided second folding plates 175, 176 when folded back and forth distance M17.
5 relative to the packaging reference position P according to the front-to-back width W of the article 500, and the interlocking chain 136, shaft 274, female thread member 276, etc. A mechanism that interlocks with the back and forth movement of the rod 124 is configured.

Next, in this embodiment, the front first folding plate 17
1,172 and the folding edges 222a, 259a of the rear first folding plates 173, 174, as shown in FIG. Although it is oblique,
As shown in Figure 23b, the height of the article 500 is H1
In order to keep this folding state always the same even when changing from H2 to H2, each folding plate 171 shown in FIG. 15,
172, 173, 174, it is necessary to adjust the left-right direction spacing S171, 173 when folding. This adjustment dimension is SH x 2. A mechanism for adjusting the distances S171 and S173 by SH×2 according to the height H of the article 500 is a drive shaft 211 and a folding plate position setting motor 21 in the wrapping paper folding device C.
3, belt 216, slider 217, 249, threaded rod 226, 260, female threaded part 227, 261,
It is composed of gears 228, 229, 262, 264, 265, a shaft 263, and the like. On the other hand, the second
As shown in FIG. 3c, when the length of the article 500 in the left-right direction changes from L1 to L2, it is necessary to adjust the distances S171 and S173 by SL×2 using the aforementioned separate mechanism. Therefore, as shown in FIG. 23d, when the height of the article 500 changes from H1 to H2 and the horizontal length changes from L1 to L2, (SH+SL)
It is necessary to adjust by ×2.

Regarding packaged product discharging device D Next, packaged product discharging device D is
This will be explained according to FIG.

The package delivery device D includes a package push-out mechanism 278 (a first
6 and 24), and a packaged product unloading guide mechanism 279 (see Figs. 16, 25, and 26) installed below the packaged product pushing mechanism 278 behind the fixed support base 193 of the wrapping paper folding device C. (see).

16th regarding the package extrusion mechanism 278;
This will be explained in detail based on Figure 24.

Support rods 280 and 281 are installed between the front end portions 1a and 2a and between the rear end portions 1b and 2b of the left and right machine frames 1 and 2, and extend rearward from the left-right center of the front support rod 280. A pair of sprockets 283 are supported by the pair of support rods 282, and a pair of sprockets 285 are supported by a bracket 284 attached to the rear side of the center portion in the left-right direction of the rear support frame 281. . A pair of chains 286 is stretched between the front and rear sprockets 283, 285. The rear support rod 2
A chain guide plate 287 is attached on top of the chain guide plate 81 and the fixed support base 193, and the upper running portion of the chain 286 passes over this guide plate 287. The front support rod 2 below the support rods 282
A mounting frame 288 is attached to the lower end portion of a plurality of hanging rods 289 extending downward from the guide plate 287, and a chain guide passage member 290 consisting of a pair of upper and lower guide plates 290a and 290b is attached to the mounting frame 288. is attached. This chain guide passage member 290 is arranged between the pair of left and right front second folding plates 175 and between the left and right pair of rear second folding plates 17.
brackets 230, 26 supporting them between
6, so that the lower running portion of the chain 286 passes through this guide passage member 290.

This chain 286 has a pair of extrusion members 29
1 are installed at equal intervals. In each extrusion member 291, a pair of left and right extrusion arms 292 extending in a direction perpendicular to the rotational direction c of the chain 286 are connected to a pair of shafts 292 relative to the chain 286.
92a, and an L-shaped mounting plate 293 is supported between the distal end portions thereof so as to be rotatable about a shaft 294 in a direction along the rotational direction c of the chain 286. A pair of left and right L-shaped levers 295 are rotatably supported on the chain 286 by a shaft 296 along the rotation direction c of the chain 286 at an adjacent position opposite to the rotation direction c of the chain 286 with respect to the push-out arm 292. The tip of this lever 295 and the mounting plate 293 are connected to the shaft 298.
They are connected by a link 297 via a and 298b. This lever 295 is the push-out arm 29
It is biased in the direction of arrow d, away from 2.

A chain drive motor 299 is attached to the bracket 284, and its rotation is transmitted to the rotation center shaft 285a of the rear sprocket 285. When the chain 286 is rotated by the same motor 299, the extrusion member 291
rotates with chain 286. When the pushing member 291 passes through the guide passage member 290, the base 295a of the lever 295 passes through the guide passage member 2.
Since the lever 295 is regulated by both the upper and lower guide plates 290a and 290b of the 90, the lever 295 becomes parallel to the push-out arm 292, and the mounting part 293a of the mounting plate 293 is in a horizontal state toward the rotational direction c of the chain 286. However, the base 295 of the lever 295
a comes off the rear end of the guide passage member 290 under the rear sprocket 285, the lever 295
rotates in the direction of arrow d, and the mounting plate 293
97 and rotates downward about the shaft 294.
The mounting plate 293 maintains this state until the pushing member 291 reaches the upper part of the rear sprocket 285, after which the base 295a of the lever 295 is again regulated by the guide plate 287 and returns to its original state.

The mounting portion 293a of the mounting plate 293 is located below the guide passage member 290 when moving in a horizontal state toward the rotational direction c of the chain 286.
It is designed to contact the folded portions 180, 185 in the middle of the portions 65, 166 and press them downward.

Rotation center axis 285 of rear sprocket 285
A toothed plate 300 having a large number of irregularities on its outer periphery is attached to the top a, and a sensor 301 for detecting the irregularities of this toothed plate 300 is attached to the rear support rod 281. Further, the extrusion member 29 is placed on the mounting frame 288 near the front sprocket 283.
A sensor 302 that detects 1 is attached.

The packaged goods unloading guide mechanism 279 is
This will be explained in detail based on Figures 5 and 26.

Behind the fixed support stand 193, both the left and right machine frames 1,
A pair of upper and lower mounting plates 303 are attached to the inside of the mounting plate 2, and a threaded rod 304 is vertically and rotatably supported between the two mounting plates 303. This threaded rod 3
04 is a pulley 305, a belt 306, and a pulley 30 for the drive shaft 211 on the fixed support stand 193 side.
7. They are interlocked via gears 308 and 309. The moving block 3 is attached to both threaded rods 304.
10 are screwed together, and a support plate 311 is installed between both moving blocks 310. This support plate 3
A pair of front and rear suspension rods 312 are supported on both left and right sides of the left and right center portion of 11 so as to be movable in the vertical direction. A pair of left and right guide rods 313 extending in the front-rear direction are attached to the front end of the guide rods 313, and a guide rod 313 extending toward the front of the fixed support base 193 is attached to the front end of the guide rods 313. 314 is attached. A compression coil spring 315 is wound around the outer periphery of the hanging rod 312 between the support plate 311 and the guide rod 313, and its elasticity urges the hanging rod 312 downward.

In the wrapping paper folding device C, a movable support base 2
The interlocking plate 254 on the wrapping paper transport conveyor 3 side that passes over the interlocking plate 252 on the 41 side extends to the rear of the fixed support stand 193, and the rear end of this interlocking plate 254 has a lower first fold side 166 on the lower surface of the subsequent wave. Guide rod 31 above
7 is attached via a connecting plate 316. This guide rod 317 and the guide rod 313 extend above the front end of the upper mounting table 41 of the wrapping paper supply device A.

Then, when the drive shaft 211 rotates, the threaded rod 3
04 rotates, the female screw member 310 moves up and down, and the guide rods 313 and 314 also move up and down to approach and separate from the lower first folding plate 166 on the rear side. As a result, the distance R313 in the vertical direction between the guide rods 313, 314 and the lower first folding plate 166 on the rear side can be adjusted to
It can be adjusted according to the height H of 0. or,
When the left and right belt conveyance sections 8 of the wrapping paper conveyance conveyor 3 approach and move away from each other, the interlocking plates 254 connected thereto also move in the left-right direction. They approach and separate from each other with respect to the center position 37a of the portion 37 in the left-right direction. Thereby, the lateral distance S317 between both guide rods 317 can be adjusted according to the lateral length L of the article 500.

Regarding the tape pasting device E Next, the tape pasting device E is
This will be explained according to FIG.

The tape pasting device E is installed between the front end of the upper mounting table 41 of the wrapping paper feeding mechanism 4 and the rear end of the guide rods 313, 317 of the packaged product unloading guide mechanism 279, and is used for pasting a pair of left and right tapes. Attachment mechanism 31
It has 8.

The two tape sticking mechanisms 318 will be described in detail.

A rotating shaft 319 is supported between the left and right machine frames 1 and 2 below the mounting plate 182b, and on both left and right sides there are threaded portions 319a and 3 whose threads advance in opposite directions.
19b is formed. This double screw part 319
A female screw member 320 is screwed into a and 319b,
Rail 182 attached to the lower side of mounting plate 182b
c so as to be movable in the left and right direction.
A side plate 321 is attached to this female threaded member 320 and extends forward. A tape mounting disk 322 is rotatably supported inside the lower part of this side plate 321.
A tooth plate 324 having an uneven outer periphery is attached to the rotation center shaft 323. A sensor 325 is attached to the side plate 321 corresponding to the tooth plate 324 to detect the unevenness thereof.

An arm 326 is attached to the shaft 3 inside the upper part of the side plate 321.
It is supported so as to be tiltable in the front-back direction about 27. A leaf spring 328 is attached to this arm 326 so as to extend upward from the tilting center axis 327 in a cantilever shape, and its tip 328a extends rearward in an L direction.
It is bent into a shape. On the front side of this leaf spring 328, the arm 326 has a tape feed roller 3.
29 is supported, and the intermediate portion of a leaf spring 328 is pressed against this tape feed roller 329. A tape feed pin 330 is supported on the arm 326 slightly above this pressure contact portion. Leaf spring 328
On the rear side of the arm 326, a tape guide plate 331 is provided extending downward.
A tape guide pin 332 is supported by the side plate 321 below the tilting center axis 327 of the arm 326 and in front of the tape guide plate 331, and the tape 6 is fitted into the tape mounting disk 322.
One end 601 of 00 is the tape guide pin 332a on the side plate 321, the lower end of the tape guide plate 331,
The tape guide pin 332 is inserted between the leaf spring 328 and the tape feed roller 329 via the tape guide pin 332b on the arm 326, and further inserted between the leaf spring 328 and the tape feed roller 330 to It is adapted to be guided by the tip portion 328a. A tape pressing roller 333 is supported on the side plate 321 on the rear side of the leaf spring 328.

A tape feeding rotary solenoid 334 is attached to the outside of the side plate 321 and is adapted to transmit rotation to the tilting center shaft 327 of the arm 326. Tape feed roller 329 and its rotation center shaft 3
A one-way clutch 336 is fitted between the tape feed roller 329 and the roller 35, so that the tape feed roller 329 rotates only in the direction of the arrow e. The rotation center axis 335 of this tape feed roller 329 is connected to the arm 326.
Both gears 337, 338 with respect to the tilting center axis 327 of
are linked via.

On the front side of the arm 326, a tilting rod 339 is supported on the side plate 321 so as to be tiltable in the front-rear direction about a shaft 340, and a cutter 341 is attached to the upper end of the tilting rod 339, which extends upward from the same shaft 340. There is. One end of a spring 342 is latched to the side plate 321 in correspondence with the tilting rod 339, and a stopper pin 343 is provided in a protruding manner.
is connected to. Due to the bias, the tilting rod 339
rotates in the direction of the arrow f and stops when it comes into contact with the stopper pin 343. Engaging portions 344 and 345 are provided protruding from the front side of the arm 326 and the base of the tilting rod 339, respectively, and as shown in FIG. 29, when the arm 326 rotates in the direction of arrow g, the engaging portion 344 tilts. The tilting rod 339 comes into contact with the engaging portion 345 of the rod 339 and the spring 3
The tape 600 is rotated in the opposite direction of the arrow f against the bias of the leaf spring 328, and cuts the one end 601 of the tape 600 slightly behind the tip 328a of the leaf spring 328.

An article mounting plate 346 is formed on the side plate 321 so as to extend in the front-rear direction, and its rear end is connected to the mounting plate 1.
It is on 82b. Tip portion 32 of the leaf spring 328
8a, the tape feeding roller 329, the tape pressing roller 333, and the cutter 341 are mounted on this article mounting plate 3.
It is located inside 46. The rotation locus of the tip 328a of the leaf spring 328 and the tape pressing roller 333 is designed to reach slightly above the article placement plate 346.

Sprockets 347 and 348 are fixed to the rotation shaft 319 and the rear rotation shaft 6 of the wrapping paper transport conveyor 3, respectively, inside the left machine frame 1, and both sprockets 347 and 348 are connected to each other via sprockets 350 and 351. and are linked by a chain 349. When the rear rotation shaft 6 rotates and the left and right belt conveyance sections 8 of the wrapping paper conveyor 3 approach and separate from each other, the rotation shaft 319 rotates and the entire pair of left and right tape sticking mechanisms 318 move toward the packaging section. They approach and separate from each other with respect to the left-right center position 37a of 37.

In addition, the horizontal spacing S318 of the left and right tape sticking mechanisms 318 can be adjusted with respect to the horizontal center position 37a of the packaging section 37 according to the horizontal length L of the article 500 using the rotation shaft 319, female screw member 320, etc. In addition, the chain 349 and the like constitute a mechanism that interlocks with the left and right movement of both the left and right belt conveyors 8 of the wrapping paper conveyor 3.

About the drive system of each device B, C Next, we will explain the drive system for raising and lowering the central mounting rod 112 of the article receiving mechanism 109 of the article supplying device B mentioned above, and the drive system for raising and lowering the central mounting rod 112 of the article receiving mechanism 109 of the article supplying device B, and the drive system of the front lower surface of the wrapping paper folding device C. 1 Drive system for moving the folding plate 165 in the front and back direction and other folding plates 167, 168, 16
9,170,171,172,173,174,
175, 176 operating wires 250, 201,
A supplementary explanation will be given of the drive system that operates 225, 273, and 237.

A rotation shaft 35 is located between the rear lower parts of the left and right machine frames 1 and 2.
2 is supported, and a pair of cam plates 353 and 354 are attached to this rotating shaft 352. This rotating shaft 352 connects a main motor 355 to a sprocket 356, a chain 357, and a sprocket 358.
are linked via. A lever 359 is supported adjacent to one cam plate 353 so as to be rotatable about a shaft 360, and a cam roller (not shown) supported by this lever 359 is engaged with the cam plate 353. This lever 359 is connected to the upper end of the center mounting rod 112 via a rod 361. When the cam plate 353 rotates with the rotation of the main motor 355, the central mounting rod 112 moves up and down via the lever 359 and the rod 361.

An interlocking shaft 362 is rotatably supported between the left and right machine frames 1 and 2 above both cam plates 353 and 354, and levers 363 are attached to both ends of this interlocking shaft 362.
is supported, and one lever 363
A cam roller (not shown) supported by the cam plate 3
54. An interlocking shaft 364 is rotatably supported between the lower front sides of the left and right machine frames 1 and 2, and the lever 191 is supported at both ends of the interlocking shaft 364, and the lever 191 and the lever 363 are connected to each other. They are connected by a link 365. When the cam plate 354 rotates as the main motor 335 rotates, the front lower first folding plate 165 moves in the front-rear direction via the lever 363, link 365, and lever 191.

A plurality of levers 366 are supported on the upper right side of the rotation shaft 352 so as to be rotatable about a shaft 367, and each wire 250,
201, 225, 273, and 237 are connected. A cam plate 368 is attached to the rotating shaft 352 in correspondence with the lever 366, and a cam roller 369 that is pressed against the cam plate 368 is supported on the lever 366. When the cam plate 368 rotates with the rotation of the main motor 355, the lever 3
66 tilts and each wire 250, 201, 22
Operate 5,273,237.

Regarding the interlocking of each device A to E The above is the mechanical configuration of the paper packaging machine according to the present embodiment. In particular, the left and right interval S8 of the left and right belt conveyance sections 8 of the wrapping paper conveyance conveyor 3, and the crease applying rollers 410, 411 horizontal interval S410,
S411, the distance in the left and right direction between the left and right article guide plates 40, S40, the distance in the left and right direction between the right and left rear mounting rods 117 of the article receiving mechanism 109, the distance in the left and right direction S117, the left and right direction when folding the second folding plates 167, 168 on the left and right lower front parts Spacing S167, second rear folding plate 169 on both left and right lower surfaces,
170 when folded, the left and right distance when folding S169, the left and right front first folding plates 171, 172 when folded and the left and right spacing S171, the left and right rear first folding plates 173,
174 when folded in the left-right direction S173, both left and right guide plates 199, 248 left-right distance S19
9, S248, the lateral spacing S205 between the left and right paper pressers 205, the lateral spacing S317 between the left and right guide rods 317, and the lateral spacing S318 between the left and right tape sticking mechanisms 318, respectively, are determined by the drive of the position setting motor 31. When adjusting the horizontal distance S8 of the belt conveying section 8 according to the horizontal length L of the article 500, the drive and movement of both belt conveying sections 8 are transmitted and adjusted at the same time. Article stopper plate 16 of front loading rod 124
3, the longitudinal distance M124, the lower front part 2nd
Folding plates 167, 168 and lower rear second folding plate 16
9,170 and the longitudinal distance when folding M167,
168, Front-back distance between front first folding plates 171, 172 and rear first folding plates 173, 174 when folded, M171, M172, front-back distance between front second folding plate 175 and rear second folding plate 176 when folding. M175 is adjusted at the same time when the position setting motor 132 adjusts the longitudinal distance M124 of the front mounting rod 124 according to the longitudinal width W of the article 500, and the drive is transmitted to the position setting motor 132 to adjust the longitudinal distance M124 of the front mounting rod 124 according to the longitudinal width W of the article 500.
According to the height H of 00, both the left and right front first folding plates 17
When the left-right distance S171 when folding the left and right rear first folding plates 173, 174 is adjusted by the drive of the position setting motor 213, the drive is transmitted to the guide. A feature is that the vertical distance R313 between the rods 313, 314 and the first folding plate 166 on the rear lower surface is also adjusted at the same time. And each interval S8, S410, S411,
S40, S117, S167, S169, S17
1, S173, S199, S248, S205,
S317, S318, M124, M167, M1
68, M171, M172, M175, R313
The moving mechanism of each part is set so that the dimensions are set optimally according to the size of the article 500, that is, the length L in the left-right direction, the width W in the longitudinal direction, and the height H.

Regarding the electrical configuration of the paper packaging machine Next, the electrical configuration of the paper packaging machine configured as described above will be described.

As shown in Figure 31, the microcomputer 3
70 is a central processing unit (hereinafter referred to as CPU) 371
, a program memory 372 consisting of a read-only memory (ROM), and a working memory 3 consisting of a readable and rewritable memory (RAM).
73, and is housed in a control box 374 shown in FIG. And CPU37
1 operates based on a control program stored in program memory 372.

Wrapping paper conveyor 3 of the wrapping paper supply device A
A position detection potentiometer 38 (see FIG. 2), which is linked to the rear rotation shaft 6 of the front and rear rotation shafts 5 and 6 that support the left and right belt conveyance sections 8, is connected to the left and right belts 500. Based on the direction length L,
A horizontal interval S8 between both belt conveying sections 8, both creasing rollers 410 connected to both conveying sections 8,
411 in the horizontal direction S410, S411, the horizontal distance S40 between the left and right article guide plates 40 attached to both belt conveying sections 8, and the left and right rear mounting rods 11 in the article receiving mechanism 109 of the article supply device B.
7, the left and right lower front second folding plates 167, 168 in the wrapping paper folding device C
The left and right spacing S167 and the second rear part of both left and right lower surfaces.
Horizontal spacing S169 between folding plates 169 and 170;
Similarly, the left and right front first folding plates 171, 172 have a left-right spacing S171 and the left and right rear first folding plates 1.
73, 174 in the horizontal direction S173, left and right guide plates 199, 248 in the horizontal direction spacing S199,
S248, horizontal spacing S between the left and right paper pressers 205
205, detecting signals proportional to the lateral spacing S317 between the left and right guide rods 317 and the lateral spacing S318 between the left and right tape sticking mechanisms 318 in the packaged product unloading device D, and inputting the detected signals to the CPU 371; It is becoming more and more common.

A position detection potentiometer 141 (see FIG. 9) that is linked to the right rotation shaft 127 in the article pedestal mechanism 109 of the article supply device B is configured to move the front loading rod 124 based on the front-to-back width W of the article 500. and the article stopper plate 163 in the longitudinal direction distance M124,
Interval M16 in the longitudinal direction between the lower front second folding plates 167, 168 and the lower rear second folding plates 169, 170
7, M168, the longitudinal distance M171, M172 between the front first folding plates 171, 172 and the rear first folding plates 173, 174, and the longitudinal spacing M175 between the front second folding plate 175 and the rear second folding plate 176. Each proportional signal is detected, and each detected signal is input to the CPU 371.

A position detection potentiometer 238 (see FIG. 17) interlocked with the threaded rod 226 on the fixed support base 193 side of the wrapping paper folding device C is connected to the
Based on the height H of 00, the first folding plate 1 on both the left and right front
71, 172 in the horizontal direction S171 and the left and right rear first folding plates 173, 174 in the horizontal direction spacing S171
173, detect signals proportional to the vertical distance R313 of the guide rods 313, 314 of the packaged goods unloading guide mechanism 279, and each detection signal
It is designed to be input to the CPU 371.

Various articles 50 are stored in the program memory 372.
0 (left-right length L, front-back width W, height H), the optimum spacing S8, S410,
S411, S40, S117, S167, S16
9, S171, S173, S199, S248,
S205, S317, S318, M124, M1
67, M168, M171, M172, M17
5. Interval data S, M, and R based on R313 are stored in advance. The control box 374 is provided with an article size setting button 375, and the CPU 37
1 calculates the sizes L, W, and H of the article 500 based on the input signal from the article size setting button 375, and calculates the calculated sizes L, W, and H of the article 500.
The interval data S, M, R for each position setting motor 31, 13 are called until the interval data S, M, R match the detection signal of the position detection potentiometer 38, 141, 238.
2,213.

A paper size detection potentiometer 63 interlocked with a rear positioning plate 53 on the mounting tables 41 and 42 in the wrapping paper feeding mechanism 4 of the wrapping paper supply device A.
(see FIG. 4), and a paper size detection potentiometer 66 (see FIG. 4) interlocked with the left and right positioning plates 58, 59 of the mounting tables 41, 42, generates a signal proportional to the size of the wrapping paper 400. is detected, and the detection signal is input to the CPU 371.

The optimal size of the wrapping paper 400 corresponding to the sizes L, M, and H of the article 500 is stored in the program memory 372 in advance. control box 37
4 is provided with a display panel 376, and the CPU 37
1 calculates the size of the wrapping paper 400 based on the detection signals from both the potentiometers 63 and 66, and also presses the article size setting button 375.
The size of the wrapping paper 400 is calculated based on the detection signal from the
0 is outside the range of the set size, the panel 37 displays the fact that it is outside the range and the set size.
It is now displayed as 6.

Package extrusion mechanism 27 of the package delivery device D
8, a sensor 301 detects the tooth plate 300 and a sensor 302 detects the extrusion member 291.
(see FIG. 24) are input to the CPU 371, and the CPU 371 detects that the sensor 302 is connected to the extrusion member 2.
After detecting 91, the tooth plate 30 is detected by the sensor 301.
The number of detected irregularities of 0 is counted. The CPU 371 is the tape sticking mechanism 318
The stopping position of the push-out member 291 is controlled so that the article 500 is stopped in a state where the tape attachment center Q corresponds to the center of the various articles 500 in the longitudinal direction. That is, program memory 3
In 72, an optimal count number corresponding to the front-to-back width W of the article 500 is stored in advance. The CPU 371 calculates the count number by the sensor 301, and also calculates a set count number based on the detection signal from the article size setting button 375, and stops the packaging product extrusion drive motor 299 when these counts match. It's getting old.

In addition, the CPU 371 is the program memory 37
Based on the control program stored in 2, the paper packaging machine is driven and controlled as will be described later.

Regarding the operation of the paper packaging machine Next, the operation of the paper packaging machine configured as described above will be explained.

First, each part is set according to the size of the article 500.

That is, after turning on the power, the mode setting key switch 379 is switched to the operating side, and the article size setting button 375 is pressed to display the sizes L, W, and H of the article 500 on the display panel 376. Confirm that this display is correct and press Start button 3.
80, based on the signal, the CPU 371 adjusts the respective intervals S8, S410, S411, S40, S11 based on the interval data S, M, R stored in advance according to the sizes L, W, H of the article 500.
7, S167, S169, S171, S173,
S199, S248, S205, S317, S3
18, M124, M167, M168, M17
1, M172, M175, R313 are automatically set.

In this case, the CPU 371 selects the size of the wrapping paper 400 as described above based on the setting data stored in advance according to the sizes L, W, and H of the article 500. When the wrapping paper 400 placed on both the upper and lower mounting tables 41 and 42 of No. 4 is not within the set size range, a display indicating this and the set size is displayed on the display panel 376. The operator replaces the wrapping paper 400 on the upper and lower mounting tables 41 and 42 in accordance with this instruction.
After replacement, the warning displayed on the display panel 376 disappears and driving becomes possible. Both upper and lower mounting tables 41, 4
When only one of the two wrapping papers 400 is within the set size, operation can be performed using the wrapping paper 400 within the set size.
When any wrapping paper 400 is within the set size, it is possible to operate using a smaller size wrapping paper.

Along with this article size input operation, the upper and lower mounting tables 41 and 42 are set. In other words, the switch 381 (which is separate from the control box 374)
Shown only in FIG. 31. ), the upper and lower wire winding motors 51 and 52 are driven in the wrapping paper feeding mechanism 4 of the wrapping paper supply device A, and the upper and lower mounting tables 41 and 4 are driven through the upper and lower hanging wires 45 and 46.
2 tilts upward. Due to this tilting, the support member 79 is pushed upward and rotated via the rotating roller 81, and the limit switch 104 is moved to the operating plate 10.
5a and actuating rod 105b to turn off. As a result, the driving of the motors 51 and 52 is stopped, and the air cylinder 84 is driven to move its piston rod 84a downward, and the rotating roller 81 is moved against the front end of the wrapping paper 400 on both the upper and lower mounting tables 41 and 42. Being pushed. This is wrapping paper 4
The setting of 00 is completed. In this set state,
As shown in FIG. 34a, the front end of the wrapping paper 400 is pressed downward by the hook portion 106b of the presser member 106 while being in contact with the vertical portion 106a.

When the start button 382 is pressed, the motor 149 is first driven in the article conveyor 110 of the article supply device B, and each chain 162 is rotated, as shown in FIG. When the article 500 is placed on the front end of each chain 162, the article 500 is conveyed in the direction of arrow b while being guided by both article guide plates 40, and the article is stopped at the highest position as shown in FIG. 33a. Front mounting rod 1 of pedestal mechanism 109
24 and stops. At this time, 500 items
presses the limit switch 164. When the limit switch 164 is pressed, the main motor 355, the belt drive motor 24 of the wrapping paper conveyor 3, and the wrapping paper feeding motor 8 of the wrapping paper feeding mechanism 4 are activated.
6 and 87 (only one of them) is driven.

When the main motor 355 is driven, each loading rod 11 in the article receiving mechanism 109 of the article supplying device B
2, 117, 124 are raised and lowered, each folding plate 165, 166, 1
67,168,169,170,171,17
2,173,174,175,176 are activated.

As shown in FIGS. 33b and 33c, the article receiving mechanism 10
When each of the mounting rods 112, 117, 124 of 9 moves from the highest position to the lowest position by the drive of the main motor 355, the article 500 is placed on each of the mounting rods 112, 11.
7,124, and the article is conveyed onto the article stopper plate 163.
It stops when it comes into contact with.

When the motors 86 and 87 of the wrapping paper feeding mechanism 4 of the wrapping paper supply device A rotate, the rotating roller 81 rotates in the opposite direction to the feeding direction h as shown in FIG. 34b, and the uppermost wrapping paper 400 is rotated. Only the front end portion of the presser member 106 is pulled out from the hook portion 106b, and then the rotating roller 81 is pulled out as shown in FIG. 34c.
rotates in the feeding direction h and the top wrapping paper 400
The chisel is rolled out. At this time, air is blown onto the front end of the wrapping paper 400 from the air jet nozzle 107 (see FIG. 6). The wrapping paper 400 passes through guide passages 73, 74, and 78 and reaches the rear end of the wrapping paper transport conveyor 3. When the sensor 108 detects the front end of the wrapping paper 400, the piston rod 84a of the air cylinder 84 moves upward, the support member 79 also moves upward, and the rotating roller 81 moves the wrapping paper 400 upward.
move away from The wrapping paper 400 is carried on both the upper and lower conveyor belts 2 of the left and right belt conveyor sections 8 of the wrapping paper conveyor 3.
It is sandwiched between 2 and 23 and conveyed to the packaging section 37.
During the conveyance, both sides of the wrapping paper 400 pass between a pair of crease imparting rollers 410 and 411, and when they pass, they are sandwiched by the grooves 412 and the protrusions 413, forming folds 415 along the conveyance direction a, as shown in FIG. As shown in d, it is attached on both sides of the wrapping paper 400 from the front end to the entire rear end. Since the CPU 371 stores in advance the number of drive pulses of the belt drive motor 24 of the wrapping paper transport conveyor 3 according to the longitudinal width W of the article 500 and the longitudinal size of the wrapping paper 400, the article pedestal mechanism in the lowest state The wrapping paper 400 is placed in the packaging section 3 above the article 500 which is placed on each of the mounting rods 112, 117, 124 of 109 and stopped.
Stops at the set position 7. In this stopped state, both folds 415 of the wrapping paper 400 are formed at both corners T of the upper surface 501 of the article 500 along the conveyance direction a of the wrapping paper 400.
located directly above.

Thereafter, as shown in FIGS. 33d and 33e, each of the mounting rods 112, 117, 124
When the article 500 rises, the article 500 first rises along the article stopper plate 163 and moves onto the wrapping paper transport conveyor 3.
The upper and lower conveyor belts 2 of the left and right belt conveyor sections 8 of
The upper surface 501 of the article 500 comes into contact with the wrapping paper 400, which is sandwiched between 2 and 23 and is waiting in the packaging section 37, and the wrapping paper 400 is lifted. At this time, as shown in FIG.
are surely aligned with both fold lines 415 of the wrapping paper 400. Therefore, even if the wrapping paper 400 tries to shift toward one of the two conveyor belts 22, 23 because both ends of the wrapping paper 400 cannot be evenly removed from between the pair of conveyor belts 22, 23, both fold lines 415 will 50
It is locked to both corner portions T of 0 and can prevent its displacement. Further, both the left and right sides of the wrapping paper 400 are connected to the left and right belt conveying sections 8 of the wrapping paper conveyor 3.
The article 500 comes out from between the upper and lower conveyor belts 22 and 23 of the left and right belt conveyor section 8 while being sandwiched between the paper presser 205 on the inside of the article 500 and the left and right side surfaces 505 and 506 of the article 500. In this state, movement of the article 500 in the left and right direction is regulated by both the left and right guide plates 199 and 248.

Each mounting rod 112, 11 of the article pedestal mechanism 109
7, 124 begins to rise from the lowest position, the front and rear lower first folding plates 165, 166 begin to open from each other from the most closed position. The first folding plates 165, 166 on both the front and rear lower surfaces are connected to each mounting rod 112,
117 and 124 are fully opened just before reaching the highest position.

After that, both left and right front first folding plates 171, 172
The left and right rear first folding plates 173 and 174 extend inwardly and diagonally upward from the lower corners of the front surface 503 and rear surface 504 of the article 500.
4, and each mounting rod 112, 11
7, 124 is at the highest position, the oblique folded edges 222a, 259a as shown in FIG. 23a.
stops at a position extending diagonally downward inward from the upper corner T of the front surface 503 and the rear surface 504. After the left and right front first folding plates 171, 172 and the left and right rear first folding plates 173, 174 begin to enter into the article 500, each mounting rod 112, 117, 124
Immediately before reaching the highest position, press the second
The folding plates 167, 168 and the rear second folding plates 169, 170 on both the left and right lower surfaces begin to enter along the front part of the lower surface 502 and the rear part of the lower surface 502 of the article 500, and each mounting rod 112, 117, 124 reaches the highest position. When the article 500 reaches the second folding plate 167, 16 at the lower front of both the left and right sides, the insertion stops once and the article 500
8 and both left and right bottom rear second folding plates 169, 170
be placed on top. Therefore, each mounting rod 112,1
17,124 begins to descend. The above state during folding is shown in FIG. 35b.

Along with this downward movement, the second front folding plate 175 and the second rear folding plate 176 begin to approach the front surface 503 and the rear surface 504 of the article 500. The front second folding plate 175 and the rear second folding plate 176 are in contact with the front side 503 and the rear side 504 of the article 500 via the left and right front first folding plates 171, 172 and the left and right rear first folding plates 173, 174. Then, the front and rear lower first folding plates 165, 166 begin to close each other from the most open state. Front second folding plate 175
and the rear second folding plate 176 is the front side 5 of the article 500.
03 and the rear surface 504, the left and right front first folding plates 171, 172 and the left and right rear first folding plates 173, 174 begin to open, and the left and right lower front second folding plates 167, 168 and both left and right front folding plates 167, 168 open. The lower rear second folding plates 169 and 170 begin to move further from the stopped state, and the left and right front first folding plates 17
1,172 and both left and right rear first folding plates 173,1
Immediately after 74 is fully opened, its entry stops. The above state during folding is shown in FIG. 35c.

And the first folding plates 165, 166 on both the front and rear lower surfaces
Immediately before the is completely closed, the second folding plates 167, 168 at the front of both the left and right lower surfaces and the second folding plates 1 at the rear of both the left and right lower surfaces
69, 170, the second folding plate 175 and the second rear folding plate 176 begin to open, and are completely opened at the same time as the front and lower first folding plates 165, 166 are completely closed. Figure 35d shows the above state during folding.
Shown below.

Each of the mounting rods 112, 117, 124 reaches its lowest position during this folding, and as described above, the article 5
00 is placed on them, and the wrapping paper 400 is conveyed to the wrapping section 37.

The article 500 with the wrapping paper 400 folded in this manner is placed on the first folding plates 165, 166 on both the front and lower sides in a closed state, as shown in FIG. In this state, when the motor 299 of the packaging product extrusion mechanism 278 is driven to rotate the chain 286, the extrusion member 291 is detected by the sensor 302 and then moves rearward toward the packaging product 500. In the packaging section 37, the placing part 293a of the pushing member 291 enters the lower surface of the packaged article 500 and places it thereon, and the pushing arm 292 of the pushing member 291 pushes the packaged article 500 backward.
As the extrusion member 291 moves, the front and lower first folding plates 165 and 166 open, and the packaged article 500 is placed on the rear first lower folding plate 166 on both the left and right sides of the extrusion member 291.

In this way, the packaged article 500 is
91 and the lower first folding plate 166 on the rear side, it is pushed out rearward by the pushing arm 292 of the pushing member 291. Then, each guide rod 3 of the packaged goods unloading guide mechanism 279
13, 314, and 317, it is guided above both the left and right tape sticking mechanisms 318, and the packaging product pushing out mechanism 2
78 motor 299 stops and both left and right mounting plates 34
It stops at the tape attachment center Q on 6. The lower first folding plate 166 on the rear side stops in front of this mounting plate 346.

In this state, when the tape feeding rotary solenoid 334 of both the left and right tape pasting mechanisms 318 is driven, the arm 326 is moved to the g as shown in FIG.
While tilting in the direction of the arrow, the tape feed roller 329 rotates in the direction of the arrow e, and one end 601 of the tape 600 extending from the tip 328a of the leaf spring 328 comes into contact with both left and right sides of the lower surface 502 of the packaged article 500, and the tape feed roller 329 rotates in the direction of the arrow e. The lower surface 502 of the packaged article 500 is pressed down by the pressing roller 333, and the tape 600 is supported by the pressing roller 333.
are pasted in sequence. At this time, the tape 600 is pulled out from the tape attachment disk 322 by the rotation of the tape feed roller 329 while being pressed by the tape guide plate 331. Engagement part 3 of arm 326
44 comes into contact with the engaging portion 345 of the cutter tilting rod 339, the cutter tilting rod 339
The other end of the tape 600 is cut by the cutter 341 at the tip 328a of the leaf spring 328. One piece of tape 602 is attached to each of the left and right sides of the lower surface 502 of the packaged article 500, with cut ends 603 remaining.

After the tape is pasted, the motor 299 of the package pushing out mechanism 278 is driven again, and the package 500 is pushed backward by the pushing member 291 and delivered to the discharge conveyor 420. At this time, the tape piece 602
The cut end 603 of the tape piece 602 is also pressed against the lower surface 502 of the packaged article 500 by the tape pressing roller 333, so that the tape piece 602 is completely adhered to the lower surface 502 of the packaged article 500, as shown in FIG. 35d.

At the time of carrying out, the wrapping paper 4 for the next article 500
00 has already been folded, and this packaged article 500 is also carried out in the same manner.

When pasting of the tape 600 is completed, the state returns to the state shown in FIG. 27, but at this time, the tape feed roller 329 does not rotate due to the action of the one-way clutch 336, and the tape 600 is not fed out. Further, the tape 600 is pulled out from the tape attachment disk 322 by being pressed by the tape guide plate 331.

Continuous operation is performed in this manner, but when the stop button 383 of the control box 374 is pressed, the operation of the packaging machine is stopped. In this cycle stop state, each loading rod 112, 11 of the article receiving mechanism 109
7, 124 stops at the highest position, and in the wrapping paper folding device C, first folding plates 165,
166 and the front and rear double-sided second folding plates 175, 176 are open to each other, and the front and rear double-sided first folding plates 171, 17
2, 173, and 174 are completely closed, and the second folding plates 167, 168, 169, and 170 on both the front and rear lower surfaces are stopped in a slightly closed state. At this time, the wrapping paper 400 is in the middle of being folded into the article 500, as shown in FIG. 35b. This article 500 is transported out in a packaged state by pressing the manual discharge button 384 of the control box 374.

The control box 374 includes a paper feed adjustment volume 385 that manually adjusts the stop position of the wrapping paper 400 in the packaging section 37, and a wrapping paper feed-out reverse adjustment that manually adjusts the reversal time of the rotating roller 81 when feeding the wrapping paper 400. A volume 386 and the like are provided.

[Other Examples] Next, another embodiment will be described.

Regarding the Second Embodiment The second embodiment shown in FIGS. 36 and 37 is different from the first embodiment in that
The folding plate 176 is modified, and the left and right front second folding plates 175 and the left and right rear second folding plates 176 are vertically movably supported by the left and right guide rail parts 390 attached to the brackets 230 and 266. A piston rod 391a of an air cylinder 391 attached to each guide rail portion 390 is connected to each folding plate 175, 176. Further, between the inner edges of the left and right front second folding plates 175 and the left and right rear second folding plates 176, folding rods 430 and 431 are provided.
are supported by the brackets 266, 230 and extend downward along the inner edges thereof to near the lower edges of the folding plates 175, 176. One double folding rod 430
is fixed and always hangs downward, but the other folding rod 431 is urged by a spring 432 and hangs downward, so that it can tilt backward against the urging force of the spring 432. .

In this second embodiment, as shown in FIG.
5, 176, the piston rod 391a of each air cylinder 391 moves downward and each folding plate 175, 176 folds the front and rear surfaces 50 of the article 500.
3,504. Therefore, the article 50
Wrapping paper 40 for both front and back sides 503, 504 of 0
0 tension can be more reliably maintained and wrinkles can be eliminated.

In addition, it is preferable that the spaces between the left and right front second folding plates 175 and between the left and right rear second folding plates 176 are not so large as to give tension to the wrapping paper 400 and eliminate wrinkles; Extrusion mechanism 278
It is necessary to pass the extrusion member 291 through. Therefore, in this second embodiment, the folding rod 430,
431 is installed in this space. That is, the extrusion member 291 is inserted between both folding rods 430 and between both folding rods 4
As the article 500 moves, one of the folding rods 43
1 tilts against the biasing force to allow its passage. Particularly, when the wrapping paper 400 is lifted by the article 500, the wrapping paper 400 first comes into contact with the lower ends of the folding rods 430, 431 and the article 500 is lifted up.
The wrapping paper 400 is folded around the center in the left and right direction of the front surface 503 and rear surface 504 of the article 500, and then the left and right front second folding plates 175 and the left and right rear second folding plates 176 are folded around the front surface 503 and rear surface 504 of the article 500. It is designed to be folded in. Therefore, the wrapping paper 400 can be made to have even more tension.

About the Third Embodiment The third embodiment shown in FIGS. 38 and 39 is a modification of the double folding rods 430 and 431 of the second embodiment. A flexible member 392 made of a coil spring is attached so as to protrude toward the center, and a support part 393 attached to the inner upper end of the second folding plate 176 on both the left and right rear surfaces is equipped with a wire-shaped spring. 394
The upper end of is supported. This spring 394 extends downward along the inner edges of the second folding plates 176 on both the left and right rear surfaces, and has elasticity in the front-rear direction.

Regarding the fourth embodiment, the fourth embodiment shown in Figs.
It is a modification of 68, 169, 170, and
As shown in FIGS. 17 and 20 of the first embodiment, these move linearly in the left and right direction from both sides of the front and rear parts of the lower surface 502 (see FIG. 35a) of the article 500. In this fourth embodiment, the wrapping paper 400 is folded along the folding axis 42, which can be rotated about a support shaft 443 as shown in FIGS. 42a and 42b.

That is, each folding plate 167, 168, 169,
170 is fan-shaped, and its tip edge is the circular arc portion 16
7a, 168a, 169a, and 170a, and their base ends are supported by support blocks 198,
247 is rotatably supported along the lower surface 502 of the article 500 by a support shaft 443. A spring 444 (41st
(see figure) is wound around the folding plates 167, 168, 169, 170 due to their elastic force, so as to bite into the lower surface 502 of the article 500 near the four corners 500a, as shown in FIG. 42b. In this biting state, the arcuate portions 167a, 169a of the left folding plates 167, 169 and the arcuate portions 168a, 170a of the right folding plates 168, 170 are facing each other.

Each folding plate 167, 168, 169, 170
The arc portions 167a, 168a, 169a,
A length-adjustable link 445 is rotatably supported on one side of 170a by a shaft 446, and wires 250, 201 similar to those in the first embodiment are connected to each link 445. When the wires 250, 201 are pulled against the elasticity of the spring 444, the folding plates 167, 168, 169, 170 rotate around the support shaft 443, as shown in FIG. 42a. It rotates so as to retreat from the article 500.

Now, in the first embodiment, each folding plate 16
7,168,169,170 move linearly, the four corners 50 of the article 500 shown in FIG.
When forming the folding line 400c near 0a, each folding plate 167, 168, 169, 17 at the beginning of folding
0 is the four corners 500a of the article 500 and the same four corners 50
At the same time, the middle part 500b apart from 0a hits the wrapping paper 400, and the lower surface folding part 400d is folded.
Therefore, the four corners 500a have particularly high folding resistance.
There was a risk that the wrapping paper 400 would be torn.

However, in this fourth embodiment, each folding plate 167, 168, 16
9,170 rotates and first hits the wrapping paper 400 at the intermediate portion 500b, and then gradually approaches the four corner portions 500a to form the folding line 400c, and folds the bottom folding portion 400d. Therefore, unlike the case of the first embodiment, since the wrapping paper 400 is gradually folded from the intermediate portion 500b where the folding resistance is low to the four corner portions 500a where the folding resistance is high, there is no possibility that the wrapping paper 400 will be torn at the four corners 500d. It will go away.

About the Fifth Embodiment The fifth embodiment shown in FIGS. 43 to 46 is based on the left and right guide rods 317 (see FIGS. 1, 16, and 25) of the packaged goods unloading guide mechanism 279 of the first embodiment. An article ejecting mechanism is added to the tape adhering mechanism 318.
The article mounting plate 346 is provided adjacent to the article mounting plate 346.
This article ejection mechanism will be described in detail below.

A slider 440 is supported on both guide rods 317 so as to be movable within a certain range in the front-rear direction along a rail 441. A bracket 442 is attached to this slider 440 within both guide rods 317, and a pusher 443 is supported on this bracket 442 so as to be rotatable in the horizontal direction about a shaft 444. This pusher 443 and bracket 4
A spring 445 is connected between the support pin 44 and
6,447, and this spring 4
The extrusion portion 44 of the pusher 443 is pushed out by the urging force of 45.
3a normally protrudes from the opposing inner edges of both guide rods 317. An air cylinder 448 is installed inside both guide rods 317, and its piston rod 448
a is fixed to a bracket 442. When the piston rod 448a moves back and forth, the slider 440, bracket 442 and pusher 44
The third class is arranged to move in the front-back direction along the rail 441.

Now, as shown in FIG.
The article placement plate 3 of the tape sticking mechanism 318 is pushed by the article placement plate 293 of
46. In this unloading state, the piston rod 448 of the air cylinder 448
a is retreated and the pusher 443 is in the standby position, and its extrusion portion 443a is attached to both guide rods 317.
protrudes from the opposing inner edges of the tape application mechanism 318 and is located on the article placement plate 346 of the tape application mechanism 318.

As shown in FIG. 46b, when the packaged article 500 is stopped on the article mounting plate 346 of both tape applying mechanisms 318, the extrusion portions 443a of both pushers 433 resist the biasing force of the spring 445 and the packaged article 500 is stopped.
The pusher 443 is pushed by the guide rod 317.
Immerse yourself inside.

After pasting the tape, the packaged article 500 is placed on the article placement plate 2 of the packaged article extrusion mechanism 278 as shown in FIG. 46c.
When the pusher 443 is carried out again by the pusher 93 and separated from the extrusion portion 443a of the pusher 443, the extrusion portion 443a of the pusher 443 again protrudes from the opposing inner edges of both guide rods 317 due to the biasing force of the spring 445. Immediately after that, as shown in FIG. 46d, the air cylinder 4
When the piston rod 448a of 48 moves forward, the pusher 443 also moves and its extrusion portion 443a pushes the packaged article 500, and the packaged article 500 is carried out onto the discharge conveyor 420.

In the first embodiment, the article placement plate 293 of the push-out member 291 of the package push-out mechanism 278 moves away upward while pushing out the packaged article 500 after the tape is attached, so that the packaged article 500 is not carried out sufficiently. However, in this second embodiment, the packaged article 50 is
0 is reliably exported.

About the Sixth Embodiment The sixth embodiment shown in FIGS. 47 to 51 has a wrapping paper sticking mechanism added to both tape sticking mechanisms 318 in the first embodiment. As shown in the figure, a pair of presser claws 450 and 451 are provided between the article device plates 346 of both tape adhesion mechanisms 318. This wrapping paper tensioning mechanism will be described in detail below.

Interlocking shafts 452, 453 are rotatably supported on both front and rear sides of the side plate 321 of both tape sticking mechanisms 318, and each of these interlocking shafts 452, 453
Each of the presser claws 450, 4
51 is supported on the support plate 454 so as to be rotatable in the front and rear directions. A pair of left and right presser claws 450, 4
51 are arranged on both front and rear sides of the tape adhesion center Q inside the tape adhesion positions of both tape adhesion mechanisms 318. A lever 455 is attached to the inner end of each interlocking shaft 452, 453.
55 and each presser claw 450, 451 are linked 456
are connected by. Each interlocking shaft 452, 453
levers 457, 458 are attached to the outer ends of the
Both levers 457 and 458 are connected by a link 459. A piston rod 460a of an air cylinder 460 is connected to one of the two levers 457. And this piston rod 460
When a moves back and forth, both levers 457 on one side rotate and one interlocking shaft 452 also rotates, and the other interlocking shaft 453 also rotates via both links 459 and both levers 458 on the other side. The presser claw 45 is rotated via a lever 455 and a link 456.
0,451, both presser claws 450,451
are rotated so that they approach and separate from each other.

Now, the packaging article 500 is attached to both tape sticking mechanisms 31.
When the piston rod 460a of the air cylinder 460 moves back,
The presser claws 450, 451 move from being separated from each other as shown in FIG. 50 to approaching each other as shown in FIG. 51a. As a result, both presser claws 450,
The pressing surfaces 450a and 451a of 451 are the packaging articles 5
00 is slightly lifted, the lower folded portions 400a and 400b of the wrapping paper 400 are pulled in the direction of the arrow i, and tension is generated in the wrapping paper 400. Then the fifth
As shown in FIG. 1B, while keeping both presser claws 450 and 451 close to each other to maintain tension on the wrapping paper 400, tape pieces 602 are applied to the lower folds 400a and 400b by both tape pasting mechanisms 318.
is pasted. After pasting the tape, both presser claws 450,
451 are spaced apart from each other as shown in FIG.
After the tape is attached, the packaged article 500 can have a good wrapping condition with good tension.

About the Seventh Embodiment The fifth embodiment shown in FIGS. 52 to 56 is a modification of the tape sticking mechanism 318 in the first embodiment, and the following will focus on the differences from the configuration of the first embodiment. Explain in detail.

A lock plate 470 is supported below the arm 326 and inside the side plate 321 so as to be rotatable in the vertical direction on the same axis as the tape guide pin 332. As shown in FIG. 54, a lock gear 471 is fixed unrotatably. A spring 4 is provided between the lock plate 470 and the side plate 321.
72 are connected, and the biasing force of the spring 472 causes the lock plate 470 to rotate upward, and the lock gear 471 of the lock plate 470 engages the gear 3 on the shaft 327.
It is meshed with 38. In the first embodiment, this gear 338 is supported so as to be able to rotate integrally with the shaft 327, but in this seventh embodiment, the gear 338 is
8 is rotatable about the shaft 327. In the first embodiment, this shaft 327 is rotated by the tape feeding rotary solenoid 334, but in this seventh embodiment, this shaft 327 is rotated by the rotary solenoid 334 for feeding the tape.
The piston rod 47 of the air cylinder 473
3a are connected via a lever 474. A press roller 475 is supported at the lower end of the arm 326 above the lock plate 470, and as the arm 326 rotates, the press roller 475 causes the lock lever 470 to resist the urging force of the spring 472. When rotated downward,
Lock gear 471 of lock plate 470 is gear 338
The gear 338 becomes rotatable relative to the shaft 327 away from the shaft 327 . Tape press roller 333 and leaf spring 328
A plate spring 476 is attached to the arm 326 between the tape presser roller 333 and the plate spring 476 .

Now, when the air cylinder 473 is driven while the packaged article 500 is stopped at the tape attachment center Q on the mounting plate 346 of the left and right tape attachment mechanism 318, the piston rod 473a causes the shaft 327 to
is rotated via lever 474, and arm 326 begins to tilt in the direction of arrow g. At the beginning of this tilt, the fifth
As shown in FIG. 4, the gear 338 on the shaft 327 meshes with the lock gear 471 and cannot rotate, so the gear 337 on the shaft 335 meshes with this gear 338.
rotates together with the shaft 335, and the rotation of the shaft 335 causes the tape feed roller 329 to also rotate in the direction of the arrow e. Therefore, the tip 328a of the leaf spring 328
One end 601 of the tape 600 extending from the packaged article 500 comes into contact with both left and right sides of the lower surface 502 of the packaged article 500 and is supported by the tape presser roller 333 while contacting both left and right sides of the lower surface 502 of the packaged article 500 and is pressed by the tape presser roller 333. The tape 600 is successively applied to the lower surface 502 of the packaged article 500 while being supported by the presser roller 333. At this time, the tape 600 is held down by the tape guide plate 331 and rotated by the tape attachment disk 349 by the rotation of the tape feed roller 329.
drawn from.

When the arm 326 further tilts, the presser roller 475 of the arm 326 comes into contact with the lock plate 470, causing the lock plate 470 to rotate downward and the lock gear 471 of the lock plate 470 to separate from the gear 338, as shown in FIG. As a result, the gear 338 becomes rotatable, so that as the arm 326 tilts, the gear 337 moves on the gear 338 without rotating. Therefore, the tape 600 is not fed out, and the tape 600 is pulled out by the movement of the leaf spring 328 as the arm 326 tilts, and is successively applied to the lower surface 502 of the packaged article 500 in the same manner as described above.

Thereafter, when the engaging portion 344 of the arm 326 comes into contact with the engaging portion 345 of the cutter tilting rod 339, the cutter tilting rod 339 moves in the opposite direction of the arrow f against the bias of the spring 342, as shown in FIG. The cutter 341 is tilted toward the leaf spring 328 and the leaf spring 4.
76, and the other end of the tape 600 is cut. One piece of tape 602 is attached to each of the left and right sides of the lower surface 502 of the packaged article 500, with cut ends 603 remaining.

After the tape is pasted, the motor 299 of the packaged product extrusion mechanism 278 is driven again, and the packaged product 500 is pushed backward by the pushout member 291 and delivered onto the delivery conveyor 420. At this time, the tape piece 60
The cut end 603 of the tape 2 is also pressed against the lower surface 502 of the packaged article 500 by the tape pressing roller 333, so that the tape piece 602 is completely adhered to the lower surface 502 of the packaged article 500, as shown in FIG. 35d. After that, the piston rod 473 of the air cylinder 473
When a moves back, the state returns to the state shown in FIG. 52. At this time, the tape feed roller 329 does not rotate due to the action of the one-way clutch 336, and the tape 60
Zero is not sent out. Further, the tape 600 is pulled out from the tape mounting disk 322 by the pressure of the tape guide plate 331, and the tape 600 becomes slack between the tape guide plate 331 and the tape feed roller 329. In the next step, this slack portion is pulled out and tape 600 is attached.

In the first embodiment, the tape feed roller 329 rotates while the arm 326 is tilting and the tape 600 is fed out.
When the packaged article 500 is carried out without being affixed to the tape 600, the tape 600 fed out by the tape feeding roller 329 touches the tip 3 of the leaf spring 328.
When the remaining tape 600 remains pulled out from the tape 28a and returns from the tilted position shown in FIG. 29 to the initial position shown in FIG.
There was a risk that the tape 600 would get wrapped around the tape 600, and the work of removing the wrapped tape 600 was troublesome.

By the way, in this seventh embodiment, as described above, the arm 32 is moved from the initial position shown in FIG.
6 begins to tilt, the tape feed roller 32
9 rotates and the tape 600 is forcibly fed out, so even if there is a mistake in pasting the tape, at the tilted position shown in FIG. Even if the tape 600 returns to the initial position shown in FIG. 52, there is no possibility that the fed tape 600 will wind around the tape feed roller 329 or the like. After making a mistake in pasting the tape, when it returns to the initial position shown in Figure 52,
The tape 600 slackens between the tape feed roller 329 and the tape guide plate 331. This slack portion is then pulled out in the next process.

Moreover, the tape 600 is different when the tape 600 is normally attached to the packaged article 500, when an error occurs when attaching the tape 600, and when the tape 600 is missing from the tape attachment disk 322.
Since the amount of feed is different, the tape mounting disk 322
The amount of rotation of the tooth plate 324 also differs, and each case can be determined by detecting the difference in the amount of rotation with the sensor 325.

Effects of the Invention In short, according to the present invention, there is no overlapping portion of the wrapping paper 400 on the circumferential surface (front surface 503, rear surface 504, left side surface 505, right side surface 506) of the article 500, and when the article 500 is placed, the lower side Since the overlapping portion of the wrapping paper 400 is formed only on the lower surface 502 located at the lower surface 502, the overlapping portion is not directly seen by the consumer, which increases the high-class image of the product.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view showing the entire paper packaging machine according to this embodiment, Figs. 2 to 8 show a wrapping paper supply device, and Fig. 2 is a partially cutaway plan view showing a wrapping paper conveyor. , Figure 3a is a partially cutaway right side view,
Figure 3b is a partial plan view of Figure 2, and Figure 3c is a partial plan view of Figure 3.
FIG. 3 d is a partial plan view showing a state in which the wrapping paper is creased; FIG. 3 e is a partial enlarged sectional view taken from the - line in FIG. FIG. 4 is a partially cutaway plan view showing the wrapping paper mounting table in the wrapping paper feeding mechanism, FIG. 5 is a partially cut away right side view, and FIG. 7 is a partially cutaway right side view showing a portion of the conveyance guide section; FIG. 7 is a partially cutaway right side view showing a portion of FIG. 6; FIG. 8 is a partially cutaway rear view of the wrapping paper conveyance guide section; FIG. 9 13 shows the article supply device, FIG. 9 is a partially cutaway plan view showing the article receiving mechanism, FIG. 10 is a partially cutaway right side view showing a portion of FIG. 9, and FIG. FIG. 9 is a partially cutaway front view showing a portion of the article conveyor, FIG. 12 is a partially cutaway plan view showing the article conveyor, FIG. 13 is a partially cutaway right side view showing a portion of FIG. 12, and FIGS. Fig. 23 shows the wrapping paper folding device, Fig. 14 is a partially cutaway plan view showing the first folding plate on both front and lower surfaces and the tape pasting mechanism, Fig. 15 is a partial plan view of Fig. 14, and Fig. 16 is a plan view showing the wrapping paper folding device. A partially cutaway plan view showing the second folding plates on both front and rear sides of the lower surface, the first folding plates on both front and rear sides, the second folding plates on both front and rear sides, and the package delivery device.
FIG. 18 is a partially cutaway right side view of FIG. 17, and FIG. 19 is a partial plan view of FIG. 17. Figure 20 shows the lower front second folding plate and the front first folding plate.
21 is a partially cutaway front view showing the folding plate and the second front folding plate, FIG. 21 is a partially cutaway right side view of FIG. 20, FIG. 22 is a partial plan view of FIG. 20, FIG. 23a,
b, c, and d are explanatory diagrams showing the position adjustment of the first folding plate on both the front and rear surfaces as the length and height of the article change in the left-right direction. FIG. 24 is a partially cutaway right side view showing the packaged product pushing mechanism, FIG. 25 is a partially cutaway front view showing the packaged product delivery guide mechanism, FIG. 26 is a partially cutaway right side view of FIG. 25, and FIG. Figures to Figure 29 show the tape pasting device, Figure 27 is a partially cutaway right side view showing one tape pasting mechanism, Figure 28 is a partially cutaway back view, and Figure 29 is a tape pasting mechanism. The second one that shows the effect
Fig. 7 is a diagram equivalent to Fig. 7, Fig. 30 is a partially cutaway plan view showing the drive system of each device, Fig. 31 is an electric block circuit diagram,
Fig. 32 is a front view showing the control box, Fig. 33 a, b, c, d, and e are action explanatory diagrams showing each stage until the article is fed to the packaging section, Fig. 34 a, b,
c is an explanatory diagram of the action of unwinding wrapping paper one by one, 3rd
Figures 5a, b, c, and d are perspective views showing the procedure for folding wrapping paper into articles; Figures 36 and 37 are partially cutaway front views showing a second embodiment in which the wrapping paper folding device is modified; 38 and 39 are partially cutaway front views showing the third embodiment, and FIGS. 40 and 41 are partially cutaway front views showing the fourth embodiment.
Figures 2a and 2b are operation explanatory diagrams showing the second folding plates on both the front and rear sides of the lower surface in the fourth embodiment, and Figures 43 to 46 show the fifth embodiment in which an article ejection mechanism is added.
Figure 3 is a partial plan view showing the same mechanism, and Figure 44 is a partial plan view of the same mechanism.
3, FIG. 45 is a Y-view enlarged view of FIG. 43, FIGS. 46 a, b, c, and d are partial plan views showing the article ejection action, and FIGS. 47 to 51 are tapes. The 6th version added a wrapping paper pasting mechanism before pasting.
FIG. 47 is a partial plan view showing a part of the tensioning mechanism added to the tape sticking mechanism;
Figure 8 is a partial plan view showing this tensioning mechanism, the fourth
Figure 9 is a Z1 partial view of Figure 48, and Figure 50 is a partial view of Figure 4.
8. A partial view taken along Z2-Z2 in FIG. FIG. 53 is a view corresponding to FIG. 28, FIG. 54 is a partial view of FIG. 52 showing the tape feed roller in a locked state, FIG. 55 is a partial view showing the tape feed roller in an unlocked state, and FIG. The figure is number 29
It is a figure equivalent figure. A... Wrapping paper supply device, 3... Wrapping paper conveyor, 4... Wrapping paper feeding mechanism, 5, 6... Rotating shaft, 7... Female thread member, 8... Belt conveying section, 1
0...Female screw member, 24...Wrapping paper conveyance belt drive motor, 31...Motor for setting the horizontal position of the belt conveyance section, 35...Interlocking chain, 37...Wrapping section, 37a...Central position in the left and right direction, 38 ... Potentiometer for position detection, 40 ... Article guide plate, 41, 42 ... Placement table, 53, 58, 59
... Positioning plate, 63, 66 ... Potentiometer for paper size detection, 73, 74, 78 ... Guide passage, 79 ... Support member, 81 ... Rotating roller,
84... Air cylinder for holding wrapping paper, 86, 87
...Wrapping paper feeding motor, 104... Limit switch, 106... Pressing member, 107... Air jet nozzle, B... Article supply device, 109... Article receiving mechanism, 110... Article conveyor, 11
2... Central mounting rod, 114, 115... Support rod, 116... Support block, 117... Rear mounting rod, 119... Slide shaft, 121... Slide plate, 121a... Connection plate, 122... ... Guide roller, 123 ... Slide plate, 124 ... Front mounting rod, 126, 127 ... Rotating shaft, 128 ... Female thread member, 129 ... Moving plate, 131 ... Guide roller, 132 ... Previously listed Motor for setting the longitudinal position of the rod, 136... Interlocking chain, 141... Potentiometer for position detection, 149... Article conveyance drive motor, 162... Conveyance chain, 163...
...Article stopper plate, 164...Limit switch, C...Wrapping paper folding device, 165...Front side lower surface first folding plate, 166...Rear side lower surface first folding plate, 1
67...Left lower front second folding plate, 168...Right lower front second folding plate, 169...Left lower rear second folding plate, 170...Right lower rear second folding plate, 171...Left side Front first folding plate, 172...
Right front first folding plate, 173...Left rear first folding plate, 174...Right rear first folding plate, 175...
...Front second folding plate, 176...Rear second folding plate,
193... Rear fixed support stand, 194, 195...
Support member, 197... Connection plate, 198... Support block, 199... Guide plate, 203... Connection plate, 204... Mounting frame, 205... Paper presser, 21
1...Drive shaft, 213...Folding plate position setting motor, 216...Belt, 217...Slider, 2
22... Oblique portion, 222a... Folded edge, 226...
... Threaded rod, 227 ... Female threaded part, 228, 229
... Gear, 230 ... Bracket, 238 ... Potentiometer for position detection, 241 ... Front movable support base, 243, 244 ... Support member, 246
...Connection plate, 247...Support block, 248...
...Guide plate, 249...Slider, 252, 25
4... Interlocking plate, 259... Oblique portion, 259a...
Folding edge, 260... Threaded rod, 261... Female threaded portion, 262, 264, 265... Gear, 263...
...Axis, 266...Bracket, 274...Axis, 2
76...Female thread member, D...Package delivery guide mechanism, 291...Extrusion member, 299...Package product extrusion drive motor, 304...Threaded rod, 310...
Female thread member, 313, 314, 317... Guide rod, E... Tape sticking device, 318... Tape sticking mechanism, 319... Rotating shaft, 320... Female thread member, 322... Tape mounting disk, 326... Arm, 327... Shaft, 328... Leaf spring, 329...
... Tape feed roller, 333 ... Tape press roller, 334 ... Rotary solenoid for tape feed, 339 ... Cutter tilting rod, 341 ... Cutter, 344, 345 ... Engagement part, 349 ... Chain, 355 ... Main motor, 370...Microcomputer, 371...Central processing unit (CPU), 372...Program memory, 375
...Article size setting button, 376...Display panel, 400...Wrapping paper, 410, 411...Crease imparting roller (crease imparting member), 412...Concave groove (concave portion), 413...Convex strip (protrusion) ), 415...
Fold line, 420... Discharge conveyor, 430, 43
1...Folding rod, 443...Pushiya, 450,4
51... Presser claw, 460... Air cylinder, 47
0...Lock plate, 471...Lock gear, 473
...Air cylinder, 475...Press roller, 50
0...Article, 600...Tape, P...Packaging standard position.

Claims (1)

[Scope of Claims] 1. In a paper packaging machine that wraps an article 500 having a top surface 501, a bottom surface 502, a front surface 503, a rear surface 504, a left side surface 505, and a right side surface 506 with a wrapping paper 400, the article is placed below the wrapping section 37. 500, and as it rises, the upper surface 50 of the article 500 is placed on the lower surface of the wrapping paper 400 supplied to the packaging section 37.
an article receiving mechanism 109 that lifts the wrapping paper 400 by bringing the wrapping paper 400 into contact with the wrapping section 37; The pair of front and rear first folding plates 165 and 166 provided on the lower surface and the wrapping section 37 are movable in the left-right direction so as to fold the wrapping paper 400 along the lower surface 502 from both left and right sides of the front and rear parts of the lower surface 502 of the article 500. A pair of left and right lower front second folding plates 167, 16 provided on the
8 and a pair of left and right lower rear second folding plates 169,
170, and from both left and right sides of the front surface 503 and rear surface 504 of the article 500 in the packaging section 37.
A pair of left and right front first folding plates 1 provided so as to be movable in the left and right direction so as to fold the wrapping paper 400 along 4.
71, 172 and a pair of left and right rear first folding plates 1
73, 174, and the front side 503 and rear side 50 of the article 500 from both front and back sides of the front side 503 and rear side 504 of the article 500 in the packaging section 37.
4. A wrapping paper folding mechanism for a paper packaging machine, comprising a front second folding plate 175 and a rear second folding plate 176, which are provided so as to be movable in the front and rear directions so as to fold the wrapping paper 400 toward the paper wrapping paper 400.