JPH0215464B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention has perforations at each predetermined sheet width,
When used, a perforated coreless roll is used to wind up a web such as a web for wet tissue, which is relatively stiff and has high wet strength, into a coreless roll every predetermined number of sheets. This relates to manufacturing equipment.

This type of perforated coreless roll is rolled into a predetermined number of sheets and packed in a container, and when used, the sheets are cut out as needed, so the number of sheets in the web packed in the container is particularly limited. It is required to be accurate and to have no defective parts such as creases or torn parts at the beginning and end of the winding. To do this, it is necessary to repeatedly stop the web at a predetermined position for each predetermined number of sheets, cut the web at the perforations, and accurately center the cut web ends without creating folds or wrinkles. It needs to be wrapped around a rod.

However, in this type of conventional perforated coreless roll manufacturing equipment, little consideration was given to this point, so the number of sheets displayed on the container may differ from the number of sheets actually packed in the container. Faulty areas such as creases or tearing occur at the beginning and end of the roll, making it impossible to utilize all the sheets effectively, which is one of the causes of a decline in product value.

In view of the above-mentioned problems, the present invention has been developed by repeatedly cutting a web with perforations in a predetermined sheet width, cutting the web every predetermined number of sheets and always at the perforations, and winding the web into a coreless roll. The purpose of this device is to provide a manufacturing device for a perforated coreless roll that can be accurately wound around a core rod without creating creases, etc. A web roll support device for rotatably supporting the web in the unwinding direction, a web feeding device for feeding the web unwound from the web roll at a constant speed, and a sewing machine for each sheet width on the web. a perforation device having a rotary blade roll for making cuts; a web cutting device for cutting the web at perforations positioned at predetermined positions; and a web for wrapping the cut end of the web around a core rod. a winding device, a web winding device for winding the web wound around a core rod into small rolls having a predetermined number of sheets around the core rod, the web feeding device, the perforation device, and the web winding device. and an appropriate drive device for driving the drive device, and further stops power supply to the drive device when the number of perforations formed reaches a predetermined number, which is counted by an appropriate counter device. Moreover, in the web cutting device, a fixed position stopping device is attached for stopping the web feeding device, perforation device, and web winding device at a phase in which the perforation of the web is to be positioned at the specified position. It is characterized by:

Hereinafter, the perforated coreless roll manufacturing apparatus of the present invention will be explained using the perforated coreless roll manufacturing apparatus Z for wet tissue as shown in FIGS. 1 to 13 as an example. The overall configuration of the perforated coreless roll manufacturing apparatus Z is shown.

This perforated coreless roll manufacturing device Z includes a web roll support device A for rotatably supporting a web roll 1 in the web unwinding direction, and a web W to be rewound from the web roll 1. A web feeding device B for feeding at a constant speed, a perforation device C for making perforations in the web W for each sheet width, and a slitter device D for cutting the web W into predetermined widths. a web cutting device E for cutting the web W at the perforation position;
A web winding device F for winding the cut end Wa of the web W around the core rod 12, and a small roll 13 having a predetermined number of sheets of the web W wound around the core rod 12 around the core rod 12. a web winding device G for winding up the web W, a driving device H for driving the web feeding device B, the perforation device C, and the web winding device G, and stopping the web W at a predetermined position every predetermined number of sheets. It has a fixed position stop device I for stopping. Incidentally, in this embodiment, the drive device H also drives the original fabric roll support device A and the slitter device D at the same time.

Hereinafter, in describing each device in detail, the drive device H will be explained first (though the order will be changed somewhat for convenience of explanation), and then each of the other devices will be explained.

The drive device H centrally and simultaneously drives the required rotating shafts of each of the original fabric roll support device A, web feeding device B, perforation device C, slitter device D, and web winding device G, which will be described in detail later. The motor 41
The reference shaft 51 has a first reference shaft 51 which is directly synchronously rotated by a motor, and a second reference shaft 52 which is belt-transmitted by the first reference shaft 51. This first reference shaft 51 always rotates at a constant speed, but the second reference shaft 52
By changing the winding position of the flat belt 155 stretched between the long first cone pulley 53 attached to the first reference shaft 51 and the second cone pulley 54 attached to the second reference shaft 52, Reference axis 51
It is said that the speed can be changed steplessly. or,
Cone pulleys 55 and 56 are attached to both ends of the first reference shaft 51, respectively. Of the pair of cone pulleys 55 and 56, one cone pulley 55
is connected via a flat belt 151 to a cone pulley 58 attached to a drive shaft 64 of a web rewinding device 19, which will be described later.By changing the winding position of this flat belt 151, the rewinding speed of the web W can be adjusted. It is now possible to adjust. On the other hand, the other cone pulley 56 has an intermediate shaft 6 fixed to the frame side via a flat belt 152.
It is connected to a cone pulley 57 attached to 1. This intermediate shaft 61 has a draw roll 9 which will be described later.
An intermediate gear 69 is attached to mesh with a gear 70 attached to one shaft end of the draw roll 9, and by changing the winding position of the flat belt 152, the rotational speed of the draw roll 9 can be changed as appropriate. ing. Furthermore, this draw roll 9
As shown in FIG. 0, it is connected to a take-up roll 11 (described later) and a slitter roll 10 (described later) via a pair of gears 71, 72 and V-belts 158, 159. Therefore, the winding roll 11 and the slitter roll 10 are each variable in speed with respect to the first reference shaft 51. Further, the flat pulley 29 attached to the first reference shaft 51 is connected to the feed roll 4 of the web feeding device B, which will be described later, via the flat belt 156.
It is connected to a flat pulley 30 mounted on. Therefore, the feed roll 4 rotates at a constant speed with respect to the first reference shaft 51 at a constant rotation ratio.

On the other hand, the gear 7 attached to the shaft end of the second reference shaft 52
6 is connected to a gear 78 attached to a rotary blade roll shaft 66 of a perforation device C, which will be described later, via an inconstant speed rotating device 20, which will be described later. They can be rotated synchronously. Therefore, among the above-mentioned devices, the web unwinding device 19 of the web roll support device A, the rotary blade roll 6 of the perforation device C, the slitter roll 10 of the slitter device D, and the winding roll of the web winding device G. 11 rotates at a variable speed with respect to the first reference shaft 51, and only the feed roll 4 of the web feeding device B rotates at a constant speed.

Further, between the motor 41 and the first reference shaft 51, there is a power control device 44 consisting of a clutch 42 and a brake 43, which are components of a fixed position stopping device I, which will be described later.
is interposed, and the supply of motor power from the motor 41 side to the first reference shaft 51 side can be interrupted or interrupted by the intermittent operation of the clutch 42, and the rotation of the drive device H can be interrupted by the brake 43. It has become possible to slow down the This power control device 44 also includes a counter device 9 which will be described later.
Its operation is controlled based on a control signal sent from 7 (FIG. 1).

The original fabric roll support device A includes an original fabric roll support stand 2 that rotatably supports the original fabric roll 1 in the unwinding direction.
2 and 22, and a web rewinding device 19 for rotating the web roll 1 at a predetermined circumferential speed in the rewinding direction. The web rewinding device 19 includes a drive pulley 35 mounted on a drive shaft 64 interlocking with the first reference shaft 51 of the drive device H, and a swing arm 39 rotatably mounted on the drive shaft 64. A flat belt 37 stretched between a driven pulley 36 and a driven pulley 36 pivoted at the end is run while being brought into contact with the outer periphery of the roll 1 with an appropriate pressing force using an air cylinder 38, and the friction between the two causes the roll to roll The roll 1 is rotated at a predetermined circumferential speed in the web unwinding direction. By changing the web unwinding speed, it is possible to appropriately set the tension in the longitudinal direction of the web W while it is being unwound from the original roll 1 and reaches a web feeding device B, which will be described later.

The web feeding device B is for feeding the web W rewound from the original fabric roll 1 to the perforation device C at a constant speed, and is connected to the first reference axis of the drive device H as shown in FIG. The feed roll 4 has a feed roll 4 that is directly driven by the feed roll 51, and a felt roll 3 that is disposed close to and parallel to the feed roll 4. The felt roll 3 and the feed roll 4 are caused to rotate synchronously in opposite directions by a pair of gears 74 and 75 that mesh with each other.

A perforation device C for forming perforations 34 in the web W is arranged at a 180° phase in the axial direction with a fixed blade roll 5 having a fixed blade 101, as shown in FIGS. 1, 9 and 13. It has a rotary blade roll 6 on which a pair of square rod-shaped rotary blades 100, 100 are arranged, and between the fixed blade roll 5 and the rotary blade roll 6, the web sent from the web feeding device B is The rotary blade roll 6 is rotated at a predetermined rotational speed through the web W, and when the rotary blade 100 and the fixed blade 101 match, a perforation 34 is formed in the web W (see FIG. 12). below,
The web W having perforations 34 formed at every predetermined sheet width after passing through the perforation device C is referred to as web W ₁ , especially the wide perforations.

As shown in FIG. 9, the fixed blade roll 5 has both ends of its roll shaft 65 rotatably attached to a pair of swing arms 102, 102 which are pivotally connected to the frame 40. This swing arm 102, 10
2, the fulcrum pin 10 is expanded and contracted by the air cylinder 107 attached to the swing end 102a.
3 in the direction of arrow a-b, and the distance between the rotary blade 100 and the fixed blade 101 can be widened or narrowed. That is, when threading the web, the swing arm 102 is rotated in an arc in the direction of arrow a to increase the distance between the blades, and when perforating the web W, it is rotated in an arc in the direction of arrow b to increase the distance between the blades. It's starting to narrow down. Furthermore, the 9th
In the figure, reference numeral 108 is the swing arm 102
This is a stopper member for regulating the tilting angle in the direction of arrow b to maintain the minimum blade interval at a predetermined dimension. Further, this fixed blade roll 5 has a protrusion 105 attached to the roll shaft 65 and a pair of upper and lower protrusions 104 and 10 protruding from the swing arm 102.
The contact position in the rotational direction between the rotary blade 100 and the fixed blade 101 can be adjusted by pressing with the push bolts 106, 106 screwed into the blade 4 and rotating the blade appropriately in the direction of the arrow c-d. It's getting old.

On the other hand, as shown in FIG. 1, the rotary blade roll 6 is arranged between the second reference shaft 52 and the rotary blade roll shaft 66 by the second reference shaft 52 of the drive device H. It is rotated at variable speed via a speed rotation device 20. At this time, since the web W is being fed at a constant speed by the web feeding device B,
By appropriately setting the rotation speed of the rotary blade roll 6, the pitch of the perforations 34 formed in the web W, that is, the sheet width can be set arbitrarily and steplessly.

The inconstant speed rotating device 20 operates the sewing machine by matching the feed speed of the web W and the peripheral speed of the cutting edge of the rotary blade 101 at the moment when the rotary blade 100 and the fixed blade 101 match to form the perforation 34 in the web W. This is for forming the eyes 34 linearly in the width direction of the web W, and as shown in FIGS. 6 to 8, they are arranged parallel to the second reference axis 52 and centered on the second reference axis 52. A movable gear 77 is attached to the intermediate rotation shaft 62 that rotates in an arc, and an intermediate fixed shaft 63 is attached to the frame 40 so as to be located on the rotation locus of the intermediate rotation shaft 62 and close to and opposite to the intermediate rotation shaft 62. An intermediate link connects the fixed gear 79 attached to the fixed gear 79, the peripheral edge of the disk-shaped movable disk 80 attached to the end surface of the movable gear 77, and the peripheral edge of the fixed disk 81 attached to the end surface of the fixed gear 79. The eccentric connecting member 23 is connected by connecting pins 96, 96 attached to both ends of the eccentric connecting member 82. This intermediate rotating shaft 62
is attached to an intermediate position of a swing arm 88 that is pivoted to the shaft end of the second reference shaft 52, and an adjustment member 89 is attached to the swing arm 88a of the swing arm 88 as shown in FIG. By rotating the movable gear 77 in an arc in the vertical direction, the movable gear 77 can be planetarily rotated around the drive gear 76 attached to the second reference shaft 52 while being meshed with the drive gear 76, and can also be rotated in an intermediate direction. The shaft 62 can be made eccentric with respect to the intermediate fixed shaft 63. When the intermediate rotary shaft 62 and the intermediate fixed shaft 63 are eccentric, the movable disk 80 rotates at a constant speed, whereas the fixed disk 81 rotates at an inconstant speed with a speed difference corresponding to the amount of eccentricity between the two. The speed difference during non-uniform rotation of the stationary side disk 81 is determined by the eccentricity h between the intermediate rotating shaft 62 and the intermediate fixed shaft 63.
(Fig. 7) becomes larger as the value increases. On the other hand, the fixed side gear 79 is meshed with a driven side gear 78 attached to the shaft end of the rotary blade roll shaft 66. Therefore,
The rotary blade roll 6 is rotated at a predetermined rotation speed (that is, a rotation speed corresponding to the sheet width of the web W) at an inconstant speed. The gear ratio between the driven gear 78 and the stationary gear 79 is 2:1, and the intermediate rotating shaft 62 rotates twice for each rotation of the rotary blade roll 6. In order to match the circumferential speed of the blade during web cutting with the web feed speed, first set the eccentricity of the movable intermediate shaft 62 and the fixed intermediate shaft 63 appropriately to adjust the speed fluctuation characteristics of the rotary blade roll 6. set arbitrarily, and then change the relative position in the rotational direction between the driven gear 78 and the reference flange 86 fixed to the rotary blade roll shaft 66 to match the peripheral speed of the blade at the time of perforation formation with the web feed speed. .

Note that the intermediate rotating shaft 62 of this inconstant speed rotating device 20
A stopper device 99 of a fixed position stopping device I, which will be described later, is attached to one end of the rotary blade roll shaft 66, and a counter device 97 of the fixed position stopping device I is attached to the other end of the rotary blade roll shaft 66.

The slitter device D divides the wide perforated web W 1, which has been perforated at predetermined intervals by the perforation device _C , into a narrow perforated web W ₂ in the longitudinal direction at a predetermined width (see Fig. 12). As shown in FIG.
It has a slitter roll 10 with... attached thereto, and an appropriate number of blade receiving grooves 26, 26... for receiving the rotating blades 25, 25... at the same intervals as the rotating blades 25, 25... of the slitter roll 10. The winding roll 11, which will be described later and which acts as a slitter receiving roll, is arranged parallel to each other, and each of these rolls is driven by the drive device H as described above. Further, the slitter roll 10 has both shaft ends pivotally supported by swinging ends of swing arms 28, 28 fixed to a fulcrum shaft 46, and the fulcrum shaft 46 is moved in the direction of arrow e-f by a lever 27. By rotating it, the distance from the winding roll 11 can be adjusted. still,
The wide perforated web W ₁ is changed in direction by the draw roll 9 as shown by the arrow w in FIG. W ₂ (see Figures 11 and 12).

The web cutting device E is for cutting the narrow perforated web W ₂ at a perforation line positioned at a predetermined position as shown in FIGS. It has a web fixing device 18 for fixing the web, and a perforation cutting device 17 for tearing the web from predetermined perforations.

The web fixing device 18 is disposed above the product take-out stand 125 disposed on the front side of the take-up roll 11, and has an elastic body 14 such as rubber on the lower end surface.
A support rod 145 of an appropriate length to which 6 is attached, and a water supply pipe 147 arranged in parallel above the support rod 145.
and a pair of air cylinders 150, 1 that operate synchronously at both ends of a holding bar 149 made of a thin plate-like sponge 148 that covers the outside of the water supply pipe 147.
50 so as to be movable up and down, and by expanding and contracting the air cylinders 150, 150, the presser bar 149 can be pressed against the product take-out stand 125 side or separated from the product take-out stand 125. It's getting old. sponge 1
48 is bent in a bifold shape, and covers the outside of the water supply pipe 147 at the bent portion, and its longitudinal end surface 148a is located at approximately the same height as the lower end surface of the elastic body 146. Also, water supply pipe 14
A large number of small holes 144, 144... are formed on the outer peripheral surface of the sponge 1, and the water supplied into the water supply pipe 147 leaks from the small holes 144, 144...
The sponge 148 gradually absorbs into the sponge 148.
It moves to the lower end surface 148a side and is stored. The water stored in the lower end surface 148a of this sponge 148 is removed by a presser bar 149, which is used as a web with narrow perforations.
When W ₂ is pressed against the product take-out table 125 side, it adheres to the narrow perforated web W ₂ and acts as a tail sealing adhesive for the web end Wb.

The perforation cutting device 17 is constructed by vertically movably supporting both ends of a cut bar 140 made of L-shaped steel and having an appropriate length by a pair of air cylinders 143, 143 that operate synchronously. When the perforation cutting device 17 is not cutting the web, its cut bar 140 is kept on standby at a position below the straight line connecting the upper outer peripheral surface of the take-up roll 11 and the upper surface of the product take-out table 125 (140 indicated by the chain line in FIG. 3). '), the cut bar 140 is pulled upward only when cutting the web (Fig. 3, chain line 1).
40''). An air pipe 141 constituting a web winding device F to be described later is attached to the inside of the cut bar 140, and the air pipe 141 is moved up and down integrally with the cut bar 140.

The web winding device F attaches the web end to the core rod 12.
This is for winding the web end Wa, and as shown in Figs. 1 to 3, the air pipe 141 is used to blow back the web end Wa toward the core rod 12 side, and the blown back web end Wa is soaked with water. It has a water soaking device 16 for adhering the web end Wa to the surface of the core rod 12 by the surface tension of water. A large number of air nozzles 142, ₁₄₂ , . The web end Wa on the take-up roll 11 side is connected to the cut bar 140.
The air nozzle 14 of the air pipe 141 moves upward with the
The air is forcibly blown back to the core rod 12 side by the pressurized air injected from 2, 142, and is wound around the surface of the core rod 12.

On the other hand, the soaking device 16 includes a water soaking pipe 131 of an appropriate length, which is made by wrapping a sponge 132 around the outside of a water supply pipe 133 having a large number of small holes 138, 138, etc., as shown in FIGS. 2 and 3. A pair of left and right support arms 136 attached to both ends of a rotating shaft 134 arranged parallel to the water pipe 131;
An air cylinder 137 is attached to the swinging end of a rotating lever 135 supported by a rotating shaft 136 and fixed to a rotating shaft 134. Therefore, by expanding and contracting the air cylinder 137, the water pipe 131 is moved in the direction of the arrow i about the rotation axis 134.
−j direction, the sponge 132 is brought into contact with the surface of the core rod 12 supported by the core rod support device 15 (described later), and water is applied to the web end Wa wound around the core rod 12. It can be attached or placed on standby at a position above the core rod 12. or,
When the soaking pipe 131 is brought into pressure contact with the core rod 12, the sponge 132 is appropriately crushed as shown in FIG. 3, and an arc-shaped contact portion v having an angle θ is formed between the sponge 132 and the core rod 12. . The range of this contact portion v is the range in which water can be soaked by the water soaking pipe 131, and the cut end of the web W is connected to the core rod 12.
When wrapped around the outer peripheral surface of (It is necessary to stop the web winding operation in this condition.) In the illustrated embodiment, the stopping position of the web W is adjusted by a fixed position stopping device I, which will be described later.

The web winding device G is for winding up a narrow perforated web _W2 divided into predetermined widths around the core rod 12, and as shown in FIGS. A take-up roll 11 that also acts as a slitter receiving roll;
A core rod that rotatably supports the core rod 12 (FIG. 4), urges the core rod 12 toward the take-up roll 11, and acts as if it were rotated by the frictional force with the take-up roll 11. It has a support device 15.

The structure and function of the core support device 15 will be described in detail. As shown in FIGS. 1 and 5A and 5B, the core support device 15 has narrow perforation webs W ₂ ,
It is constructed by connecting a pair of gripping members 31, 31 facing each other across W ₂ in the width direction thereof, and connecting them by a rotation shaft 114. This gripping member 31 has a substantially L-shaped swing arm 1 fixed to a rotation shaft 114.
11, and the swing arm 11 with a pivot pin 115 located above the swing arm 111.
1 and a substantially L-shaped presser arm 112 pivotally attached to the holding arm 112. swing arm 111
One swinging end 111a of the presser arm 112 and one swinging end 112a of the presser arm 112 are connected by a mandrel gripping air cylinder 121 that acts as a gripping portion for the mandrel 12. By expanding and contracting the air cylinder 121, the thickness of the thick plate-shaped swing arm side gripping piece 116 attached to the other swing end 111b of the swing arm 111 and the thickness of the swing arm side grip piece 116 attached to the other swing end 112b of the presser arm 112 is increased. The bearing 68 of the core rod 12 (see FIG. 4) is attached to the circular bearing gripping portion 124 formed at the abutting portion of the plate-shaped presser arm side gripping piece 117 as shown in FIG. 5A. (see Fig. 5B), or by separating the two from each other as shown in Fig. 5B.
24 can be expanded.

Further, at a position closer to the pivot pin 114 of the semicircular recess 118 of the swing arm side grip piece 116 constituting the bearing grip portion 124, there is a top surface 1 of the swing arm side grip piece 116 continuous with the semicircular recess 118.
A smooth surface 116b having a lower height than 16a is formed. This smooth surface 116b cooperates with the stopper member 120 protruding from the presser arm 112 when the core rod 12 is gripped, that is, when the bearing 68 of the leading core rod 12 is gripped by the bearing gripping portion 124. It acts to restrict movement toward the bearing gripping portion 124 (Fig. 5A), and also when removing the core rod, that is,
A guide for guiding the trailing core rod 12 to the arc-shaped recess 118 side when the air cylinder 121 for gripping the core rod is contracted and the swing arm side gripping piece 116 and the presser arm side gripping piece 117 are separated from each other. It acts as a surface (Fig. 5B). Hereinafter, the corner formed by the stopper member 120 and the smooth surface 116 will be referred to as the core standby part 126.

Further, the swing arm 111 is attached to the rotation shaft 114.
A rotating lever 113 extending in the opposite direction is fixed. Swinging end 113 of this rotating lever 113
a acts to urge the swing arm 111 via the rotary lever 113 about the rotary shaft 114 to urge the core rod 12 gripped by the bearing grips 124, 124 toward the take-up roll 11. An air cylinder 122 for urging the core rod is attached. This air cylinder 122 for urging the core rod has a smaller thrust than the air cylinder 121 for gripping the core rod, and during operation of the device, the thrust force acts continuously regardless of when the core rod is gripped or taken out. It's like that.

The core rod support device 15 operates as follows. That is,
During web winding, the core rod 12, which is rotatably supported by gripping members 31 and 31 as shown in _FIG . The web W 2 is pressed against the winding roll 11 and rotated by the frictional force with the winding roll 11, and the web W ₂ has each narrow perforation on its outer peripheral surface.
is wound up and gradually grown. At this time, each gripping member 31, 31 is pressed in the direction of arrow h by the air cylinder 122 for urging the core rod as the small roll 13 grows, and the rotation lever is pressed. 113, it is rotated in the direction of arrow g about the rotation shaft 114 (FIGS. 5A and 5B, the position shown by the chain line).
Note that at this time, the following core rod 12 is accommodated in the core rod standby section 126.

On the other hand, when a predetermined number of sheets of the narrow perforated web W ₂ have been wound around the core rod 12, the air cylinder 121 for gripping the core rod is contracted and the bearing gripping portion 124 is expanded, and the core rod 12 is gripped by the bearing. Part 124
(Figure 5B). At this time, the swing arm 111 rotates the small roll 13 and the take-up roll 11.
As a result, the restriction on rotation in the direction of the arrow h is released, and the rotation lever 1 is rotated downward (in the direction of the arrow h) by the air cylinder 122 for urging the core rod.
13 and the rotation angle adjustment screw 123 collide with each other. When the core rod 12 is released from the core rod support device 15, the small roll 13 has the core rod 1 at its axial center.
2 are inserted and try to roll down on the take-up roll 11 toward the product take-out stand 125 due to their own weight, and at that time, the trailing core rod 12 moves from the core standby section 126 to the swing arm. 111 and collides with the rear side of the small roll 13, causing the small roll 13 to fall forcefully toward the product take-out table 125. The small roll 13 is the product take-out table 12
If it falls to the 5 side, the air cylinder 12 for gripping the core rod
1 is extended, the gripping member 31 grips the core rod 12 as shown by the solid line in FIG. 5A, and the web is again ready for winding.

In the illustrated embodiment, the core rod 12 and the bearing member 68 have the same outer diameter, but in other embodiments of the present invention, the core rod 12 and the bearing member 68 may have different diameters. .

The fixed position stop device I stops the power supply to the drive device H when the number of perforations formed by a suitable counter device reaches a predetermined number, and stops the power supply to the drive device H, and stops the perforation machine of the web in the web cutting device E. This is for stopping the web roll supporting device A, the web feeding device B, the perforation device C, the slitter device D, and the web winding device G at a phase when the eye is to be positioned at the specified position. As shown in FIGS. 1 and 6 to 8, there is a disc-shaped stopper plate 84 attached to the shaft end of the intermediate rotating shaft 62 of the inconstant speed rotating device 20, and a stopper plate 84 that is connected to the stopper plate 84. A stopper device 99 consisting of a stopper 87 that removably engages with the stopper 87 to restrict rotation of the stopper plate 84, and a counter device 9 attached to the shaft end of the rotary blade roll shaft 66 of the perforation device C.
7, and a power control device 44 disposed between the first reference shaft 51 of the drive device H and the motor 41.

The stopper plate 84 has an outer peripheral surface 84a.
The cam roller 9 of the stopper 87, which will be described later, is placed in the appropriate position.
2, an arc-shaped recess 85 of an appropriate size engages with the recess 85.
The intermediate rotating shaft 62 is fastened to a disc-shaped reference plate 83 fixed to the shaft end of the intermediate rotating shaft 62. This reference plate 83 and stopper plate 84
are removably fastened by four tightening bolts 160, 160... inserted into circular arc-shaped elongated holes 161, 161... formed in the stopper plate 84, and the tightening bolts Loosen 160, 160... and remove the reference plate 83 and stopper plate 84.
By relatively rotating the intermediate rotating shaft 62 and the recess 85 of the stopper plate 84, the relative positions in the circumferential direction can be set arbitrarily.

On the other hand, the stopper 87 is connected to the swing end 9 of a swing arm 91 which is rotatably connected to a fulcrum pin 90.
1a, a recess 85 of the stopper plate 84;
a cam roller 92 that engages with the swing arm 9;
Air cylinder 9 that acts to rotate 1 in an arc
It is constructed by attaching 3 and 3. This stopper 87 is arranged on the forward side in the rotational direction of the stopper plate 84 with its cam roller 92 facing the outer peripheral surface 84a of the stopper plate 84 and the air cylinder 93 facing in the tangential direction of the stopper plate 84. As shown in FIG. 7, the air cylinder 93 is extended and the swing lever 9 is
1 is tilted in the direction of arrow m, its cam roller 92 engages with the recess 85 of the stopper plate 84 to stop the rotation of the stopper plate 84 on the spot, and also causes the air cylinder 93 to contract. When the swing lever 91 is tilted in the direction of the arrow n, the recess 85 and the cam roller 9
2 can be disengaged. As will be described later, this air cylinder 93 is extended before the concave portion 85 of the stopper plate 84 rotates and reaches a predetermined engagement position (the position shown in FIG. 7), but in that case, the cam roller 92 is initially Outer peripheral surface 8 of stopper plate 84
4a, and engages with the recess 85 when the recess 85 reaches a predetermined engagement position. Further, this air cylinder 93 is connected to a counter device 9 which will be described later.
The expansion and contraction are controlled according to the signal from 7.

The counter device 97 stops the power supply to the drive device H to decelerate each device when the number of perforations formed reaches a predetermined number, and also positions the perforations 34 of the web at a specified position in the web cutting device E. The stopper device 99 and the power control device 44
It is constructed by attaching a pulse transmitter to the shaft end of the rotary blade roll shaft 66, which transmits a signal of, for example, 20 pulses per rotation.

To explain in detail the control method by this counter device 97, the number of sheets of the web wound onto the core rod 12 side in one winding operation is determined by the perforation formed in the web by the perforation device C. 34 (for example, when the rotary blade roll shaft 66 rotates once, two perforations 34 are formed in the web, and at the same time, two sheets of web are wound up on the core rod 12 side. ), the number of web winding sheets to the core rod 12 side can be counted by the number of perforations formed by the perforation device C. Therefore, if the number of web sheets to be wound onto the core rod 12 is now 50, the counter device 97 will transmit a signal of 500 pulses during that time. According to the signal transmitted from this counter device 97, the stopper device 99 and the power control device 44 are operated in sequence. In other words, in order to reliably stop each device that performs web winding work while rotating at high speed after winding a predetermined number of sheets and without generating a large impact force, it is necessary to That is, before the stopper device 99 is activated, it is necessary to sufficiently reduce the rotational speed of the stopper device 99 to reduce the inertial force of each device. Therefore, in this embodiment, when the number of perforations formed by the perforation device C reaches around 40 (that is, when the signal transmitted from the counter device 97 is around 400 pulses), first the power control device 44 is activated. Clutch 42 is disengaged to stop power supply to drive device H. Furthermore, after a predetermined period of time after the power supply is stopped (timer setting), the brake 4
3 to reduce the rotational speed of the drive device H, and bring the rotating shafts of the original roll support device A, web feeding device B, perforation device C, slitter device D, and web winding device G into a slow rotation state. lead to. Further, the air cylinder 93 of the stopper device 99 is extended to stop the cam roller 92 at the time when the predetermined number of sheets to be wound is reached with one sheet remaining, that is, until the signal from the counter device 97 passes 490 pulses and reaches 500 pulses. It is brought into contact with the outer circumferential surface 84a of the par plate 84. Then, the cam roller 92 rolls on the outer peripheral surface 84a of the stopper plate 84 as it rotates, and when the recess 85 reaches the predetermined engagement position, that is, the 50th web is wound onto the core rod 12 side. When it is rotated, it engages with the recess 85 and acts to simultaneously stop each of the devices in their respective rotational phases.
It should be noted that the time when this recess 85 and the cam roller 92 engage is relative to the time when the 50th perforation 34 is formed in the perforation device C, that is, the time when the 500th pulse signal is transmitted from the counter device 97. By shifting the position, the stopping position of the perforation 34 to be cut by the web cutting device E can be appropriately set. That is, from the counter device 97
The longer the time from when the 500th pulse signal is transmitted until the recess 85 and the cam roller 92 engage, the more the stop position of the perforation 34 to be cut moves toward the small roll 13 side. In the illustrated embodiment, the stop position of the perforation 34 is adjusted using the reference plate 8 attached to the intermediate rotating shaft 62 as described above.
This is done by changing the relative position between 3 and the stopper plate 84.

On the other hand, when resuming the web winding operation, the air cylinder 93 of the stopper device 99 is first contracted to remove the cam roller 92 from the recess of the stopper plate 84, and then the brake 4
3 and then connect the clutch 42.

In addition, in FIG. 6 and FIG. 7, reference numerals 94 and 95
is a limit switch that acts as an interlock mechanism for the clutch 42, and the cam roller 92
While the protrusion 98 provided on the swing lever 91 is pressing one of the limit switches 95 by engaging with the recess 85, the clutch 42 cannot be connected, and the cam roller 92 is disengaged from the recess 85. The clutch 42 can only be operated when the protrusion 98 presses the other limit switch 94.

Next, the use and operation of the perforated coreless roll manufacturing apparatus Z of the illustrated embodiment will be explained.
As shown in FIGS. 1, 11, and 12, the web W is unwound from the original roll 1, sent to the web feeding device B via paper rolls 2, 2, and then fed from the web feeding device B at a constant rate. The sheet is sent to the perforation device C at a feed speed of , and perforations 34, 34, . . . are formed at every predetermined sheet width. The wide perforated web W ₁ in which perforations 34 are formed is
Further, it is sent to a slitter device D via paper rolls 7 and 8, and is cut into a predetermined width to form a narrow perforated web _W2 . This narrow perforated web
W ₂ is further wound around the core rod 12 in the web winding device G, and is cut into a web with narrow perforations that follows in the web cutting device E.
It is separated from W ₂ and becomes a single small roll 13 having a predetermined number of sheets.

The web winding, winding, and cutting operations of the web winding device F, web winding device G, and web cutting device E will be described below with reference to FIGS. 2A to 2D, FIG. 3, and FIGS. 5A and 5. To explain the work order with reference to Figure B, first, the narrowly perforated webs W ₂ , W ₂ . Core rod support device 15 of device G
It is wound around the core rod 12 supported by and rolled up. When an appropriate number of sheets of web have been wound around the core rod 12, the power control device 44 is activated to stop the power supply to the drive device H and to reduce the speed of the web roll supporting device A and web feeding device B. , perforation device C, slitter device D, and web winding device G rotate at a slow speed. Further, at the time when winding of the web of a predetermined number of sheets is completed with one more sheet left, the stopper device 99 is activated, and when winding of the predetermined number of sheets is completed, the above-mentioned devices are simultaneously stopped. When each device stops, the gripping members 31, 31 of the web winding device G are expanded as shown in FIG.
2 unwinds the narrow perforated web W ₂ from each of the small rolls 13, 13... while unwinding the product unloading table 12.
Pushed out to the 5th side. At this time, the trailing core rod 12 is attached to the gripping members 31, 31, and presses and fixes the narrow perforated web W2 wound around the surface of the take-up roll ₁₁ at a suitable position on the take-up roll 11 side ( (See Figure 3). At this time, the perforations 34 of the narrow perforated web W ₂ to be cut are stopped at a predetermined position closer to the product take-out table 125 than the contact point x between the take-up roll 11 and the core rod 12. .

Next, as shown in FIG. 2C, the web holding device 18
The presser bar 149 lowers and the small roll 13 is cut from the perforation 34 in the web cutting device E.
A predetermined position on the side is pressed against the product take-out stand 125 side and fixed. In this state, as shown in FIG. 3, the cut bar 140 of the perforation cutting device 17 moves upward, and the perforation 34 is stopped by the cut bar 140 to stop the narrow perforation web _W2 at a specified position.
At the same time as cutting from the cut bar 14
Pressurized air is injected from the air pipe 141 that moves up integrally with the web to blow the cut end of the web back toward the core rod 12 as shown by the chain line in FIG. Wa is placed at a prescribed position on the core rod 12, that is, at a position where it can be soaked with water by the water soaking device 16. At this time,
Since the air pipe 141 moves from below to above while injecting pressurized air, the cut end of the web is connected to the contact area x.
The web is sequentially wound around the surface of the core rod 12 from the side toward the web end Wa side, and there is no possibility that creases or folded portions will occur at the beginning of the web winding.

When the cut end of the web wraps around the surface of the core rod 12, the water soaking pipe 131 of the water soaking device 16 is connected to the second water soaking pipe 131.
As shown in Figures D and 3, the user approaches the core rod 12 and presses the sponge 132 containing water against the core rod 12 from above the web end Wa to deposit an appropriate amount of water on the web end Wa. The web edge Wa with water attached is
The water is adsorbed to the surface of the core rod 12 by the adhesive force of the water. This completes the work of winding the web end Wa around the core rod 12. When the web wrapping work is completed, the water pipe 131 is returned to the predetermined position as shown by the chain line (131') in FIG. 2D, the stopper device 99 is released, and the power control device 44 is operated. Power is supplied again to the drive device H, and the narrow perforated web W ₂ is wound up around the core rod 12 again.

On the other hand, after the presser bar 149 returns to the initial position, the small rolls 13, 13... taken out to the product take-out stand 125 side are wound with the unwound web ends Wb on the small roll 13 side, and their axes are The core rod 12 is removed from the section to form a coreless small roll 13. Incidentally, the core rod 12 removed from the small rolls 13, 13, .

Next, the effects of the perforated coreless roll manufacturing apparatus of the present invention will be listed below.

That is, the apparatus for manufacturing a perforated coreless roll of the present invention has the following features: (1) When the number of perforations formed by an appropriate counter device reaches a predetermined number, the power supply to the drive device is stopped; In the web cutting device, the web is cut into a predetermined number of sheets by a fixed position stop device that stops the web feed device, perforation device, and web winding device at a phase when the perforation of the web is to be positioned at a predetermined position. Because the system stops each time accurately at a predetermined position and cuts from the perforation, the number of sheets wound onto the small roll is always accurate. For items displayed on a box, the displayed quantity always matches the content quantity, which improves the product value. (2) A fixed position stop device ensures that the perforation to be cut is accurately placed at a specified position. Since the length of the cut end of the web wound around the surface of the core rod is always a specified constant length, there is no possibility that the length of the cut end of the web is too long or short. There are no defects such as creases at the beginning of web winding or overlapping parts that occur when the web is rolled too much, and the entire web can be used from the beginning to the end, improving its use value and commercial value. It has the following effects.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the overall configuration of a perforated coreless roll manufacturing apparatus according to an embodiment of the present invention, and FIGS. 2A to 2D are views of the perforated coreless roll manufacturing apparatus shown in FIG. An explanatory diagram of the operation of the web cutting device section, the web winding device section, and the web winding device section,
Figure 3 is an enlarged view of the main part of Figure 2, Figure 4 is an enlarged view of the core rod shown in Figure 3, and Figures 5A and 5B are
6 is an enlarged perspective view of the fixed position stop device shown in FIG. 1, FIG. 7 is a view taken in the direction of the arrow in FIG. 6, and FIG. - A cross-sectional view, FIG. 9 is an enlarged perspective view of the web feeding device shown in FIG. 1, FIG. 10 is an enlarged perspective view of the slitter device shown in FIG. 1, and FIG. 11 is the same as shown in FIG. FIG. 12 is a schematic diagram showing the order of web winding in the core roll manufacturing apparatus, FIG. 12 is a schematic diagram showing the processing order of the web, and FIG. 13 is a vertical cross-sectional view of FIG. 1... Original fabric roll, 6... Rotating blade roll, 12... Core rod, 13... Small roll, 34... Perforation, 97... Counter device, A... Original fabric roll support device, B... Web feeding device, C... Perforator Shion device, E
...web cutting device, F...web winding device, G...
Web winding device, H...drive device, I...fixed position stop device, W...web, Wa...web end.

Claims (1)

[Claims] 1. A web roll support device A for rotatably supporting a web roll 1 of the web W in the web unwinding direction, and a web W to be rewound from the web roll 1.
Web feeding device B for feeding at a constant speed
Then, 3 perforations are made in the web W for each sheet width.
4, a web cutting device E for cutting the web W at the perforation line 34 positioned at a prescribed position, and a web cutting device E for cutting the web W at the perforation 34 positioned at a prescribed position;
a web winding device F for winding the end Wa around the core rod 12; and a web winding device F for winding the web W wound around the core rod 12 onto a small roll 13 having a predetermined number of sheets around the core rod 12. It has a web winding device G, the web feeding device B, a perforation device C, and a suitable drive device H for driving the web winding device G, and the drive device H is further provided with a suitable counter device 97. When the number of perforations formed reaches a predetermined number, the power supply to the drive device H is stopped, and the perforation 34 of the web W is positioned at the specified position in the web cutting device E. A perforated coreless roll manufacturing apparatus characterized in that a fixed position stopping device I is attached for stopping the web feeding device B, perforation device C, and web winding device G in the desired phase.