JPH0771828B2 - Folding device for folding packaging container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention folds up a rectangular wrapping paper sheet to fold up a twin type foldable packaging container having a rectangular parallelepiped product storage space next to each other. Folding device.

[Prior Art] Conventionally, there is no twin-type folded packaging body in which a rectangular packaging paper sheet is folded up and a rectangular parallelepiped product accommodating space is provided next to each other.

[Problems to be Solved by the Invention] The inventor of the present application invented a twin type folded package shown in FIGS. 6 (a), (b), and (c).

The folded package is divided into a wrapping zone 3 and a wrapping zone S, which is divided into two sides by a center line 2 connecting the centers of a pair of long sides 1a and 1a of the wrapping paper S whose main part is a rectangle of a required size. Then, in the center of each wrapping zone 3,3, while securing a rectangular bottom part 4,4 of a required size long in the direction of the short side 1b of the wrapping paper S, one long side 4a of each bottom part 4,4 is secured. The trapezoidal inner surface portion 5 between the center line 2 and the center line 2, and the rectangular front surface portion 6 between the other long side 4b of each bottom surface portion 4 and the short side 1b of the wrapping paper S, 6 and each bottom
A rectangular side surface portion 7,7 is secured between the short side 4c of the 4,4 and the long side 1a of the wrapping paper S, the center line 2 is mountain-folded, and the inner surface portions 5,5 and the front portion are formed. 6, 6 and the side surface portions 7, 7 are erected with respect to the respective bottom surface portions 4, 4, and at that time, the triangular portion 8 between each inner surface portion 5 and the side surface portion 7 is separated from the side surface portion 7 by a dividing line. 9 and the inner surface portion 5 are valley-folded from the partition line 10 to be closely adhered to the inner surface portion 5, and the rectangular portion between each front surface portion 6 and the side surface portion 7 is connected to the front surface portion by a diagonal line 13. 6 is divided into a triangular portion 11 adjacent to 6 and a triangular portion 12 adjacent to the side surface portion 7, and the diagonal line 13 that divides the diagonal portion is valley-folded so that the two triangular portions 11 and 12 are closely contacted and the outside of the front portion 6 And the rectangular parallelepiped product accommodating spaces 14, 14 are folded and formed next to each other on the two bottom surface portions 4, 4. Therefore,
Since one rectangular wrapping paper is folded up to have a rectangular parallelepiped product storage space next to each other, for example, a package of twin Japanese sweets such as red and white rice cakes and couple sweets, and foods other than two and a set of foods It is possible to provide a folded packaging container suitable for packaging the product.

An object of the present invention is to provide a folding device for the above-mentioned folded packaging container.

[Means for Solving the Problems] The folded packaging container according to the present invention has a structure as shown in FIGS.
As shown in (c), a lowering die head A is provided at the upper portion, and an ascending die head B is provided at the lower portion so as to be opposed to the lowering die head A. Has a wrapping paper folding mold part C through which both die heads A and B can pass, and has a wrapping paper mounting table D on the wrapping paper folding mold part C. It has two prisms 15a, 15a vertically installed with a slight interval δ1. The push-up die head B is a rectangular horizontal plate 16a and is erected at the center of the horizontal plate 16a. It has a vertical plate 16b housed between the two prisms 15a, 15a when approaching the thrusting die head A, and the wrapping paper folding mold part C is separated in parallel at a required interval. It has two rectangular rod-shaped heater blocks 17, 17 with embedded horizontal heaters. Has four rectangular parallelepiped folding blocks 18,18,19,19 mounted on opposite sides of the rack.
A rectangular opening 20 of the required size surrounded by 8,19,19
In addition, both of the die heads A and B can be passed through, and the folding blocks 18, 1 facing each other on both sides are provided.
A small gap δ2 that allows the folded wrapping paper S to smoothly pass through is secured between the nine members. Furthermore, the down die head A opens the wrapping paper S at the opening of the wrapping paper folding mold part C. The push-up die head B is pushed down through the portion 20, and the push-up die head B is moved up close to the wrapping paper before the push-down die head A is lowered, and is lowered while being in close contact with the push-down die head A. In the wrapping paper folding mold C, the upper part of the folding blocks 18, 19 is higher than the heater block 17, and the upper part of the side surface of each block 17, 18, 19 is When both the die heads A and B pass downward with the wrapping paper S sandwiched between them, a guide surface 17a that can fold a triangular fold of the wrapping paper ear piece into the heater block 17 side at the right-angled corner of the base end of each folding block attachment, 18a, 19a are formed, Wrapping paper table D
Is characterized in that edge folding guide plates 25d, 25d are vertically provided at opposing edges of the opening 25a of the mounting table 25b on the heater block 17, 17 side.

[Action]

First, when the wrapping paper S is supplied onto the wrapping paper mounting table D, the push-up die head B opens the wrapping paper folding mold C.
It passes through 20 and approaches the vicinity of the wrapping paper S and rises. Next, the push-down die head A descends and the wrapping paper S is placed in the opening 2 of the mounting plate 25b.
Push down to 5a, wrap the wrapping paper S, and push up the die head B horizontal plate
16a, the vertical plate 16b, and the edge folding guide plate 25d of the wrapping paper loading table D
By contacting the two lower surfaces and the four side surfaces of the prisms 15a, 15a of the thrusting die head A, the prism contact surfaces are bottom surfaces 4, 4 of the wrapping paper S, front portions 6, 6, and inner surface portions 5 , 5 Then, the folding blocks 18 and 19 are provided on the side surface of the wrapping paper S.
By relatively lifting by the top part of 7,7,
The side surfaces 7, 7 and the triangular portion 8 are formed and the wrapping paper S
Form the ears 11 and 12 of the wrapping paper that are folded into triangles at the right-angled corners of. Next, the push-down die head A and the push-up die head B descend integrally to move the prism 15 of the push-down die head A.
When a and 15a enter the opening 20 of the wrapping paper folding mold C,
The heater block 17 of the wrapping paper folding mold C and the guide surfaces 17a, 18a, 19a of the folding blocks 18, 19 are the wrapping paper earpieces 11, 1.
Tilt the 2 toward the heater block 17 side, slide down on the side surface of the heater block 17 and push down to fold the guide plate 25d.
The wrapping paper S is wrapped around and folded over the front portions 6 and 6 of the wrapping paper S, and the thrusting down die head A and the thrusting up die head B are integrally lowered until the wrapping paper S passes through the opening 20 and is rubbed. Since the heater block 17 applies heat to the wrapping paper S in the process of folding the wrapping paper S to give it a fold-up habit, the wrapping paper that has passed through the opening 20 is placed on the push-up die head B while maintaining the fold-up shape. It will be in a state of being. Then, the push-down die head A is raised and returned.

[Example ... Fig. 1 (a), (b), (c) to Fig. 5 (a), (b)] First, the structure of the folded packaging container of this example is shown in Fig. 1 ( This will be described with reference to a), (b) and (c).

The upper part has a lowering die head A that can freely descend, and the lower part that has a lowering die head B that can rise to face the lowering die head A. The two die heads A and B are placed between the two die heads A and B. It has a wrapping paper folding mold part C which can pass through, and a wrapping paper placing table D on the wrapping paper folding mold part C.

The down die head A is a down rod 15 that can descend freely.
A prism mounting block 15c is attached to the lower end of b, and two prisms 15a, 15a are vertically provided from the block 15c. The two prisms 15a, 15a are opened by a slight gap δ1 (about 3 to 4 mm), and the lower end face of the prism corresponds to the bottom surface parts 4, 4 in the development view of FIG. 6 (a). There is.

The push-up die head B has a push-up rod 16c which is pushed up by the push-up drive means 21 and is supported by the ring block 22a of the endless transfer means 22 so as to be able to move upward. A horizontal plate 16a is fixed, and a vertical plate with a thickness of about 1 mm is further provided at the center of the horizontal plate 16a.
When the push-up rod 16c is pushed up by the push-up drive means 21, the vertical plate 16b is inserted between the two prisms 15a, 15a of the push-down die head A. . Horizontal plate 16a is size X1 x Y1 described below
And the vertical plate 16b has a height of H1. The wrapping paper folding mold part C has mounting brackets 23, 23.
The heater block 17 has two rectangular rod-shaped heater blocks 17 in which the heaters 24 horizontally embedded at a required interval so as to be supported at both ends are embedded. One heater block 17
The two folding blocks 18, 18 are attached to the opposite side surfaces of the heater block 17, and the two folding blocks 19, 19 are attached to the opposite side surface of the other heater block 17,
And 19 are facing each other with their fixed sides as their backs. The heater block 17 and the folding blocks 18 and 19 are formed so as to surround a rectangular opening 20 of a required size. The size of the opening 20 is X2 × Y2 = {X1 + approximately if the size around the two prisms 15a, 15a is X1 × Y1.
The size is 4 mm (both sides)} x {Y1 + approximately 4 mm (both sides)}. Therefore, in the opening 20, both die heads
It is designed to pass through A and B.

Furthermore, the folding blocks 18, 19 facing each other on both sides
A small gap δ2 (about 3 to 4 mm; which may be equal to the gap δ1) through which the folded wrapping paper S can be smoothly passed is secured between the two. The gap δ2 is provided to fold the four ear pieces 8 that are folded into a triangle in FIG. 6 (c). The height of the heater block 17 is H2, and the height of the folding blocks 18 and 19 is 4 / 3H2 to 3 / 2H2, and the lower ends of the heater block 17 and the folding blocks 18 and 19 coincide with each other. Therefore, the folding blocks 18 and 19 are raised above the heater block 17 by 1 / 3H2 to 1 / 2H2. Then, when the die heads A and B pass downward with the wrapping paper S sandwiched between them, on the upper side surfaces of the blocks 17, 18, and 19 at the right-angled corners of the base ends of the folding blocks, as shown in FIG. In the middle of folding, the wrapping paper ears 11 and 12 and the heater block 17 that are left in four corners of the folding packaging container and are formed into a triangle
Guide surfaces 17a, 18a, 19a that can be folded to the side are formed. The guide surfaces 17a, 18a, 19a can fold the wrapping paper tabs 11, 12 to the heater block 17 side because the guide surface 17a is provided lower than the guide surfaces 18a, 19a. , 12 is upright by the side portions of the folding blocks 18, 19 before the heater block 17, is tilted toward the lower guide surface 17a, and is guided by the guide surface 17a as it is to the side portion of the heater block 17. This is because they can be pushed down while making sliding contact.

The wrapping paper placing table D has ribs 25c on three sides of a placing plate 25b having an opening 25a, and edge folding guide plates 25d, 25d are vertically provided at one opposite edge of the opening 25a. The mounting plate 25b
The wrapping paper S of size X3 × Y3 (= {X1 + 4H1} × {Y3}) can be accurately positioned and placed, and the size of the opening 25a is set to X2 × Y3. The edge guide plate 25d has a width of {Y1−about 4 mm (on both sides)} and a thickness of about 1 mm.

Then, the push-down die head A pushes down the wrapping paper S through the opening 20 of the wrapping paper folding mold C, and the push-up die head B pushes down the wrapping paper. The opening 20 of the paper folding mold C can be moved upward. The push-up die head B is moved up close to the vicinity of the wrapping paper prior to the downward movement of the push-down die head A, and is moved downward while being in close contact with the push-down die head A.

Next, the operation of the folded packaging container of the embodiment having the above configuration will be described with reference to FIGS. 1 (a), (b) and (c) to FIGS. Fig. 6 (a), (b), (c)
The process of folding the folded packaging container will be described as shown in FIG.

First, FIGS. 1A and 1B show a wrapping paper feeding process. In this step, the thrust die head A is stopped at the raised position, and the thrust die head B is stopped at the lowered position. One piece of the wrapping paper S is supplied from the direction perpendicular to the paper surface, and is accurately positioned and placed on the wrapping paper placing table D.

FIGS. 2A and 2B show the next step of FIGS. 1A and 1B. In the state shown in the figure, after the push-up rod 16c is pushed up by the push-up drive means 21 and the vertical plate 16b stops ascending to a position close to the mounting surface of the packaging sheet mounting table D, the prism of the thrusting die head A is stopped. The vertical plates 16b are slightly accommodated between the prisms 15a and 15a while the 15a and 15a are in the middle of descending. In this state, the wrapping paper S is in close contact with the lower surfaces of the prisms 15a, 15a, and the center line 2 of the wrapping paper S of FIG.
Housing is about to begin between a and 15a.

3 (a) and 3 (b) show the next step of FIGS. 2 (a) and 2 (b). The state shown in the figure is the prism 15 of the down die head A.
a, 15a is in the middle of descending pushing the horizontal plate 16a of the thrust die head B back to the upper surface of the heater block 17 (the thrust driving means 21 actively descends), and the vertical plate 16b is placed between the prisms 15a, 15a. Is fully housed. In this state,
The wrapping paper S is pushed down into the opening 25a of the mounting plate 25b,
A prism 15 with a horizontal plate 16a, a vertical plate 16b, and an edge guide plate 25d.
It is in close contact with the two lower surfaces of a and 15a and the four surfaces of dimension Y ₁ . The contact surfaces of the wrapping paper S with the prisms 15a, 15a are the bottom surface portions 4,4, the front surface portions 6,6 and the inner surface portions 5,5 of the wrapping paper S shown in FIG. 6 (a). Further, in this state, the side surface portions 7,7 of the wrapping paper S shown in FIG. 6 (a) are brought into contact with the upper surfaces of the folding blocks 18,19 and relatively lifted, so that the side surface portions 7,7
Then, the ears 11 and 12 of the wrapping paper which are folded in a triangle start to be formed at the right-angled corners of the base ends of the respective folding blocks. Therefore, when the prisms 15a, 15a of the thrusting die head A are further lowered, the folded triangular wrapping paper tabs 11, 12 are guided by the guide surface 17.
It is tilted to the heater block 17 side by a, 18a, 19a, and is guided by the guide surface 17a as it is and folded into the side that is pushed down while slidingly contacting the side surface portion of the heater block 17. At that time, the triangular wrapping paper tabs 11 and 12 tilted toward the heater block 17 side are wound around the outside of the edge folding guide plate 25d, and reach the side surface of the heater block 17 as shown in FIG. )
The wrapping paper S shown in FIG.

FIGS. 4 (a) and 4 (b) show the next step of FIGS. 3 (a) and 3 (b). The state shown in the figure is the prism 15 of the down die head A.
The a and 15a have passed through the opening 20 of the wrapping paper folding mold C and have stopped descending. Further, the push-up drive means 21 is in a state of being lowered and stopped. The wrapping paper S which is pushed up by passing through the opening 20 by the prisms 15a, 15a becomes a folded wrapping container folded in the state shown in FIG. 6 (c).

FIG. 5 (a) shows the next step of FIG. 4 (a), (b),
FIG. 5 (b) shows the next step of FIG. 5 (a).

The state shown in FIG. 5 (a) is the prism of the die-down die head A.
15a, 15a have passed through the opening 20 of the wrapping paper folding mold C and stopped rising. Therefore, the folded packaging container folded in the state shown in FIG. 6 (c) remains placed on the horizontal plate 16a so as to straddle the vertical plate 16b. In the state shown in FIG. 5 (b), the endless transfer means 22 is moved by one step and stopped, the thrusting die head A is stopped at the raised position, and the thrusting die head A facing the thrusting die head A is pushed up. The die head B is stopped at the lowered position.
Wrapping paper is not yet supplied. After that, the above cycle is repeated.

The heater block 17 and the folding blocks 18 and 19 are
When the wrapping paper S is folded up, heat can be applied to the wrapping paper S so that the wrapping habit can be favorably imparted. When the wrapping paper S having a heat-welding film such as polyethylene laminated on the upper surface is used, the wrapping paper S shown in FIG.
The triangular part 8 can be welded to the inner surface part 5, and the triangular part 11,1
Since 2 can be welded, the product housing space 14 can be formed in which the four corners are not opened.

It should be noted that ribs may be raised on the periphery of the horizontal plate 16a to prevent the folded packaging container from being displaced.

[Effects of the Invention] According to the folding device for a folded package of the present invention described above, according to the initial purpose, one rectangular wrapping paper is folded and the rectangular parallelepiped product accommodating spaces are arranged side by side. It is possible to fold up and form a twin type foldable packaging container that has.

[Brief description of drawings]

1 (a) is a vertical sectional front view of a folding device for a folded package, FIG. 1 (b) is a sectional view taken along line Ib-Ib in FIG. 1 (a), and FIG. 1 (c). Is Ic-I in Fig. 1 (b)
FIG. 2 (a), (b) to 4 (a), (b) are cross-sectional views sequentially showing the operating state during the packaging process corresponding to FIGS. 1 (a), (b), respectively. 5 (a) and 5 (b) are cross-sectional views sequentially showing the operating state in the middle of the packaging process corresponding to FIG. 1 (a). FIG. 6 (a) is a development view of the wrapping paper of the folded package.
FIG. 6 (b) is a perspective view of the folded package during folding, and FIG. 6 (c) is a perspective view of the folded package during folding. S: Wrapping paper, A ... Push down die head, B ... Push up die head, C ... Wrapping paper folding die section, D ... Wrapping paper placing table, 1a ... Long side of wrapping paper, 1b ... … Short sides of wrapping paper, 2
…… Center line, 3 …… Packing zone, 4 …… Bottom part, 4a, 4b
...... Long side of bottom part, 5 …… Inside part, 6 …… Front part, 7 ・ ・ ・
… Side part, 8 …… Triangle part, 9 …… Partition line, 10 …… Partition line, 11 …… Triangle part (wrapping paper tab), 12 …… Triangle part (wrapping tab tab), 13 …… Diagonal line , 14 …… Product storage space,
15a …… Square pillar, 15b …… Down rod, 15c …… Square pillar mounting block, 16a …… Horizontal plate, 16b …… Vertical plate, 16c…
… Push-up rod, 17… Heater block, 17a… Guide surface, 18… Fold up block, 18a… Guide surface, 19
...... Folding up block, 19a ...... Guide surface, 20 ...... Opening part, 21 ...... Pushing up drive means, 22 ...... Endless transfer means, 22a ...... Ring block, 23 ...... Mounting bracket, 24 ...... Heater, 25a …… Aperture, 25b …… Mounting plate, 25
c …… rib, 25d …… ear edge guide plate,

Claims (1)

[Claims] 1. A wrapping paper having a lowering push-up head at an upper portion and a lowering push-up head facing the push-up die head at a lower portion, and allowing the both die heads to pass between the two die heads. A fold-up mold part, and a wrapping-paper placing table on the wrap-up paper fold-up mold part; and the above-mentioned down head has two prisms vertically erected at a slight interval. The push-up die head includes a rectangular horizontal plate and a vertical plate housed between the two prisms when the push-down head standing upright at the center of the horizontal plate is in proximity. The wrapping paper folding mold part has two rectangular rod-shaped heater blocks in which heaters embedded horizontally in parallel at a required distance are embedded, and on opposite side faces of each heater block. It has four rectangular parallelepiped folding blocks attached, Both of the die heads can be passed through a rectangular opening of the required size surrounded by these blocks, and the wrapping paper that is folded in two between the folding blocks facing each other on both sides can be smoothed. A small gap that can be passed through is secured, and further, the push-down die head is configured to push down the wrapping paper through the opening of the wrapping paper folding mold part, and the push-up die head is Prior to the lowering of the push-down die head, the push-up die head approaches and rises near the wrapping paper, and comes down and returns while being in close contact with the push-down die head. Is higher than the heater block, and at the upper part of the side surface of each block, when both of the die heads move downward with the wrapping paper in between, the base end of each folding block is attached. A guide surface is formed at the right-angled corner so that the ears of the wrapping paper left over in the shape of a triangle can be folded into the heater block side. A folding device for a folding packaging container, characterized in that plates are hung vertically.