JPH101229A - Sheet supplying stocker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply thin sheets of a fixed shape stacked and received in a large quantity so as to stick one by one on an adhesive face by providing a cylinder and a piston, ands spacedly forming sheet circumferential edge part retaining pawls on the circumferential edge part of the extreme end opening of the cylinder. SOLUTION: This sheet supply stocker 1 is provided with a hollow cylinder 2, and a piston composed of a head 4 and a rod 3, and a guide member 5 is fixed to the rear end of the cylinder. The rear end of the piston rod 3 is fixed to a connecting member 7 rotatably supporting a winding spring 6 winding a plate spring 9 with a shaft 8. For replenishing received sheets, the cylinder 2 can be divided into upper and lower parts at an engaged part 14. Retaining pawls 10 are spacedly arranged on the opening circumferential edge part of the extreme end of the cylinder 2, and it is constituted so that only the center part of the extreme end part is a little raised by always applying push-up force to the lower face of a sheet stacked body by the piston. When the extreme end part of the stocker is pressed against an adhesive sheet face and the stocker is retreated, the sheets are surely stuck thereon one by one.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet supply stocker used to take out thin sheets one by one from a laminate of thin sheets, supply the thin sheets to an article surface having an adhesive surface, and attach them. . More specifically, the present invention adheres a thin sheet body of a predetermined shape to a continuous pressure-sensitive adhesive sheet supplied from a take-up roll for each predetermined length, and applies the pressure-sensitive adhesive sheet on which the thin sheet body is adhered to the predetermined length. A thin sheet body supply in an apparatus for manufacturing an adhesive sheet laminate with a corner mark by cutting each adhesive sheet and laminating each adhesive sheet in the same direction so that the positions (corners) where the thin sheet bodies are stuck overlap each other. Related to stockers. Further, the present invention detects foreign matter such as dust and dirt on the surface of the traveling adhesive sheet, or detects a defect such as uneven color of the printed adhesive sheet, and attaches a mark sheet for identification to a defective portion of the adhesive sheet surface. Sheet supply stocker used in the apparatus for the mark. Further, the present invention relates to a packing supply stocker used in an apparatus for supplying packing to a side surface of an adhesive tape roll.

[0002]

2. Description of the Related Art Hospital facilities such as operating rooms and CTU rooms,
In places where it is necessary to install equipment to prevent dust from entering the room, such as experimental facilities at various research institutions and parts assembly rooms at various precision equipment assembly factories, the floor of these facilities should be mounted on the support surface. A plurality of pressure-sensitive adhesive sheets provided with a pressure-sensitive adhesive layer are stacked and installed with the pressure-sensitive adhesive layer on the upper surface, and footwear of people passing thereover and wheels of various transport vehicles,
It has been practiced to prevent dust from being carried into the facility by attaching and removing dust such as dust and earth and sand, which are carried in on the casters, on the surface of the adhesive layer.

[0003] One of the uppermost layers of the pressure-sensitive adhesive sheet laminate is removed from the laminate after a certain period of time or when the amount of dust adhering to the pressure-sensitive adhesive layer surface of the uppermost pressure-sensitive adhesive sheet has increased. Then, the cycle of exposing a new pressure-sensitive adhesive layer surface of the next pressure-sensitive adhesive sheet for subsequent use is repeated until the number of laminated sheets is exhausted.

In the case of the pressure-sensitive adhesive sheet laminate, generally, the pressure-sensitive adhesive layer of the pressure-sensitive adhesive sheet is sufficient for removing dirt, but has an appropriate adhesive strength that does not hinder the walking and operation of pedestrians and transport vehicles. It is necessary to have appropriate inter-sheet adhesive strength so that the uppermost adhesive sheet does not adhere to pedestrian's footwear or wheels and peel off from the lower layer sheet when passing by pedestrians or vehicles. After fulfilling the role, characteristics such as being capable of easily peeling the uppermost pressure-sensitive adhesive sheet from the next pressure-sensitive adhesive sheet with a small force are required.

[0005] Various devices have already been proposed for satisfying the above-mentioned characteristics required for a dust-removing pressure-sensitive adhesive sheet laminate. JP-A-48-80138 discloses an adhesive having a structure in which a non-adhesive material piece (corner mark) is arranged on one adhesive corner at each corner of each sheet and the sheet is peeled off from this portion. A mat laminate is described. However, this publication does not disclose a specific method and apparatus for arranging the non-adhesive material pieces at the corners of each adhesive sheet when producing the dust-removing adhesive sheet laminate. In addition, there is no use example of a device that efficiently and accurately supplies the non-adhesive material pieces to predetermined locations one by one.

[0006] Further, uneven printing of a continuous pressure-sensitive adhesive sheet wound on a pressure-sensitive adhesive sheet roll used in the production of a pressure-sensitive adhesive sheet having a printed layer on the surface of a substrate sheet, dirt or dust on the pressure-sensitive adhesive layer, etc. It has been practiced to mark a defective portion such as an adhering portion to avoid using the marked portion. As such a marking means, a sheet having a predetermined shape is quickly responded to a detection signal of the defective portion. There is no sheet feeding device that can be attached to the location.

Further, packing is applied to the adhesive side surface of the adhesive tape roll, and the adhesive side surfaces are separated from each other so that the adhesive rolls can be stacked one on another. 1 on the side
There is no sheet supply stocker that can automatically supply sheets as packing in a sheet-by-sheet order.

[0008]

SUMMARY OF THE INVENTION The present invention is capable of laminating and storing a large number of thin sheets of thin paper, plastic film or the like having a predetermined shape, and sequentially placing the sheets one by one on the adhesive surface. It is an object of the present invention to provide a sheet supply stocker that can be supplied for application. The present invention also provides various apparatuses using the above-described sheet supply stocker and a method of supplying and attaching sheets to various article surfaces using the apparatus.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has a cylinder and a piston slidably fitted in a hollow portion of the cylinder. In the portion, a sheet peripheral portion pressing claw is formed at an interval, a laminated sheet storage portion is formed between the portion and the head of the piston, and the piston is slidably provided at the rear end of the cylinder. The present invention relates to a sheet supply stocker, wherein a guide member for guiding is fixed, and a pressing means for pushing up the piston at a constant pressure is connected to a rear end of the piston penetrating the guide member.

Further, the present invention relates to the above-mentioned sheet supply stocker, wherein the pressing means for pushing up the piston at a constant pressure is a wrap spring. The present invention also provides
The pressing means for pressing up the piston at a constant pressure is an air cylinder. The present invention also relates to the sheet supply stocker according to any one of the above, wherein a viewing window is provided on a side wall of the stacked sheet storage unit of the cylinder of the sheet supply stocker.

Further, according to the present invention, a holding claw formed at a peripheral edge of an opening of a cylinder of the sheet feeding stocker is inclined and protrudes from a peripheral edge of the cylinder to an upper portion of a cylinder center. The lower surface facing the inner space is formed in a tapered shape from the peripheral edge of the cylinder toward the distal end, and presses the peripheral edge of the stored laminated sheet. And a sheet supply stocker described in (1). Further, the present invention relates to various apparatuses using the above-described sheet supply stocker and a method of supplying sheets to various articles using the apparatus.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a sheet supply stocker of the present invention and a method of supplying sheets to various adhesive tapes or sheets using the stocker will be described with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of the sheet supply stocker 1 of the present invention, FIG. 2 is a plan view of the leading end of the sheet supply stocker 1, and FIGS. 3 and 4 are longitudinal sectional views of the leading end of the sheet supply stocker 1. FIG. 5 is a schematic view illustrating another embodiment of the sheet supply stocker of the present invention.

FIG. 6 shows a sheet supply stocker 1 according to the present invention.
FIG. 7 is a schematic diagram illustrating a method of marking a defective portion such as a dust or dirt adhesion portion on a pressure-sensitive adhesive sheet surface or an uneven printing portion of a base material sheet with a sheet body, which is an example of use of the present invention. And FIG. 8 is a schematic view illustrating a method of attaching a packing sheet to the side of an adhesive tape roll, which is an example of use of the stocker 1 for use. It is a schematic diagram for explaining the manufacturing method of.

In the drawing, reference numeral 1 denotes a sheet supply stocker, 2 denotes a cylinder, 3 denotes a piston rod, 4 denotes a piston head, 5 denotes a piston guide member, 6 denotes a winding spring, 7 denotes a connecting member, 8 denotes a rotating shaft, 9 is a leaf spring, 10 is a claw portion, 11 is a sheet, 12 is a viewing window, 13 is a cylinder outer wall flange,
Reference numeral 14 denotes a cylinder engaging portion, and 15 denotes a leaf spring fixing screw.

As shown in FIG. 1, the sheet supply stocker 1 has a hollow cylinder 2 and a piston consisting of a head 4 and a rod 3 slidably fitted in the hollow portion of the cylinder. , A piston rod 3 at the rear end of the cylinder
A guide member 5 that slidably fits and holds the guide member 5 is fixed, and a rear end of the piston rod 3 that penetrates the guide member 5 is rotated by a shaft 8 with a winding spring 6 that winds a leaf spring 9. It is fixed to a connecting member 7 which is rotatably supported. Further, the cylinder 2 is configured so as to be able to be divided vertically by the engaging portion 14, and when it is confirmed through the viewing window 12 that it is necessary to replenish the storage sheet, the upper portion is removed and a spare one is removed. Replace or replenish sheet.

The open end of the leaf spring 9 wound around the winding spring 6 is fixed to a side portion of the guide member 5 by a fixing screw 15, and the leaf spring 9 wound around the winding spring 6 is provided. Is pressed, the upper surface of the piston head 4 is pressed against the rear surface of the sheet laminate housed in the space inside the cylinder between the piston head 4 and the claw 10 at the tip of the cylinder 2 in a state where the piston is pulled down. When the stretched state of the coil spring 6 is released, the piston always pushes the sheet stack from the lower surface by a proper and uniform rewinding force of the leaf spring 9.

As shown in FIGS. 2, 3 and 4, the distal end of the cylinder 2 has a holding claw 10 which is arranged at a distance from the periphery of the cylinder opening. Pressing claw 10
As shown in FIGS. 3 and 4, is formed gradually thinner from the peripheral edge of the opening of the cylinder 2 toward the distal end extending toward the center of the cylinder. It is configured in a shape inclined obliquely upward from the base end of the periphery of the opening.

Due to such a structure of the holding claws, when a force is constantly applied by the piston to push the sheet stack accommodated in the cylinder from the lower surface, the pressing action of the claws on the peripheral edge of the sheet stack causes the sheet stack to be pressed. As shown in FIG. 1, only the central portion of the foremost portion rises slightly. When the tip of the stocker is pressed against an adhesive surface such as an adhesive sheet and then the stocker is retracted, the surface of the central portion becomes sticky. The sheet stuck on the surface has its peripheral edge both sides slipped between the claw and the succeeding sheet and pulled out from the cylinder opening. It can be attached to a flat surface.

The top surface of the piston head 4 may be flat. However, it can be formed slightly convex in accordance with the shape of the holding claw 10 at the tip of the cylinder. There is no particular limitation on the material of the piston, and any material made of metal or synthetic resin can be used. However, in order to always exert a uniform pressing force due to the rewinding force of the winding spring on the piston, it is desirable to be lightweight, and it is lightweight and has excellent corrosion resistance in order to avoid an increase in sliding friction due to corrosion and the like. It is preferable to employ a piston made of a fluorine resin head or rod.

In the cylinder 2 of the sheet stocker 1, usually about 1500 to 2000 thin sheets are stacked and stored. As the thin sheet member, any material selected from paper, plastic film, and the like can be used.

FIG. 5 shows the sheet stocker of FIG.
An embodiment in which the means for applying a constant pressing force to the storage sheet laminate is an air cylinder will be described. In the drawing, the same reference numerals as those in FIG. 1 have the same meanings, 16 is an air cylinder, 17 is a piston, 18 is a piston head stopper, 19 is a fixing bolt, a is an air inlet, b is an air outlet, c Indicates the direction of the pushing force.

The sheet stocker shown in FIG. 5 has the same structure as that shown in FIG. 1 except that a constant pressing force is always applied to the sheet laminate by the air cylinder 14 fixed to the sheet stocker 1.
Works the same as. When it is confirmed through a viewing window or the like that the number of sheets 11 in the sheet supply stocker 1 has been reduced to a predetermined amount, the fixing bolt 19 is loosened and the stocker 1 itself is replaced with a spare one, or the stocker 1 is engaged with the engaging portion 14. Continued use by separating and replenishing a new sheet stack.

FIG. 6 shows an example of the use of the sheet stocker 1 of the present invention, in order to avoid the use of a defective portion of the continuous adhesive sheet when a continuous adhesive sheet is unwound to produce a sheet laminate having a predetermined size. FIG. 2 is a schematic view illustrating an apparatus for attaching a mark sheet to the defective portion. It is unwound from the adhesive sheet take-up roll 100, and the guide roll 10
Dust attached to the pressure-sensitive adhesive surface of the continuous pressure-sensitive adhesive sheet 101 wound on the winding roll 105 via 2, 104;
When the detection means 103 detects the presence of dust or printing dirt or uneven color on the surface of the base material, the air cylinder 106 which is a driving mechanism of the stocker 1 is operated, and the arm 107 engaged with the flange 13 of the stocker 1 operates. When the stocker 1 was lifted and the front end thereof was pressed against the surface of the adhesive sheet 101 at the sheet (mark sheet) sticking position P in contact with the holding roll 108 and immediately retracted, the stocker 1 was located at the front end of the stocker 1. Only one sheet 11 is adhered to the adhesive sheet surface as a mark sheet. The continuous pressure-sensitive adhesive sheet portion to which the marking sheet has been attached is excluded from the object of use when it is cut into predetermined dimensions later and processed into a product.

In the apparatus shown in FIG. 6, reference numeral 111 denotes a motor for a take-up roll, and reference numeral 110 denotes an air cylinder 106.
Reference numeral 109 denotes a holding member fixed to the base 110 and holding the stocker 1 so as to be vertically movable. Since the stocker 1 used is of the type shown in FIG. 1, a detailed description thereof will be omitted.

FIG. 7 shows a case in which packing is applied one by one to the adhesive side surface of the individual adhesive tape roll 200 which is continuously guided and guided by the lower guide 201 and the upper guide 202 from a manufacturing apparatus (not shown). This is an example of use in an apparatus for stacking and packaging a predetermined number of adhesive tape rolls. When an appropriate detecting means detects that the adhesive tape rolls 200 manufactured by the manufacturing device (not shown) have fallen one by one onto the receiving table 203, the air cylinder 204 operates based on the detection signal to receive the tip end of the stocker 1. When the sheet is pressed against the adhesive side of the adhesive tape roll located on the base 203 and only one end sheet is attached, the sheet immediately retracts to the original position. This operation is repeated each time the pressure-sensitive adhesive tape roll is supplied to the pedestal 203, so that the pressure-sensitive adhesive tape rolls 200 are aligned and conveyed in the groove guide with the sheet 11 serving as a packing interposed therebetween. That is, even if a predetermined number of products are packaged thereafter, they do not adhere to each other on the sticky side surfaces, and can be taken out one by one and used for use when opened and used.

FIG. 8 is a schematic view of a facility in which equipment for preventing dust from entering the room, such as an in-hospital facility such as an operating room or an experimental facility in various research institutions, needs to be installed. And adhesive sheets with corner marks that remove dust and dirt, such as dust and earth and sand, which are attached to and carried on casters, and are removed from the surface of the adhesive layer. An example in which the present invention is applied to the production of a pressure-sensitive adhesive sheet laminate is shown. The illustrated apparatus sticks a thin sheet body (corner mark) of a predetermined shape to a continuous pressure-sensitive adhesive sheet supplied from a take-up roll at a predetermined length, and removes the continuous pressure-sensitive adhesive sheet on which the thin sheet body is stuck. An apparatus for manufacturing an adhesive sheet laminated body with a corner mark by cutting at predetermined lengths and laminating each cut adhesive sheet in the same direction so that the positions (corners) where the thin sheet bodies are stuck overlap. It is the schematic explaining the use example of the stocker for thin sheet supply.

A continuous pressure-sensitive adhesive sheet 301 having a pressure-sensitive adhesive layer on one side, which is supplied to a position of a mark sheet sticking position P of a pressing roll 303 while being guided by a guide roll 302, has its leading end held by a suction holding device 305. In this state, the mark sheet 11 is stuck from the leading end opening of the mark sheet stocker 1, and the stocker 1 retreats to the original position. Next, the lamination plate 306 holding the adhesive sheets 307 laminated so that the sticking positions of the mark sheets 11 are overlapped moves to the left in FIG. 8, and the mark sheet 11 stuck on the adhesive sheet surface at the mark sheet sticking position P When the stacking adhesive sheet on the stacking plate 306 stops at the position where the mark sheet overlaps with the mark sheet, the suction holding state of the suction holding device 305 is released, and the pressing roll 303 moves downward to remove the adhesive sheet 301 on which the corner mark is stuck. By pressing down from the back, the adhesive surface is stacked as the uppermost layer of the laminated adhesive sheet 307 stacked on the laminated plate.

Next, when the laminated plate 306 is moved rightward by a predetermined distance to the position shown in the drawing while pulling out the adhesive sheet 301 and stopped there, the back surface of the adhesive sheet 301 is sucked and held by the suction holding section 305, and at the same time, the cutting device 304
The cutting of the pressure-sensitive adhesive sheet is performed by the cutting blade. At the same time as or after this cutting operation, the air cylinder 308 operates to move the tip of the stocker 1 to the position P where the corner mark 11 is stuck.
The sheet 11 is stuck to the surface of the pressure-sensitive adhesive sheet 301 of FIG.
Laminate 30 of adhesive sheet with corner mark sheet on top
7 is formed. When the adhesive sheet laminated on the laminated plate reaches a certain number, it is conveyed to a cutting position (not shown), cut into a certain size at a corner mark sticking position, and easily peeled off one by one from a place where the corner mark is stuck. The adhesive sheet laminate product is laminated so that it can be laminated.

The mark sheet stocker 1 is slidably held by a cylindrical holding member 309, is connected to the air cylinder 308 by an arm 310 detachably engaged with the outer wall flange 13, and is moved forward and backward. The air cylinder 308 is held on a base 311 and the laminated plate 306 is held.
It is integrated with.

[0030]

As described above, the sheet stocker of the present invention has a simple structure and can store a large amount of thin sheets in a compact manner, and the sheets are always stored one by one only by a simple pressing operation. It has the advantage that it can be accurately and continuously adhered to the target adhesive article surface, and that sheet replenishment can be easily performed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a sheet supply stocker 1.

FIG. 2 is a plan view of the leading end of the sheet supply stocker 1;

FIG. 3 is a longitudinal sectional view of a leading end of a sheet supply stocker.

FIG. 4 is a longitudinal sectional view of a tip portion of another example of a sheet supply stocker.

FIG. 5 is a longitudinal sectional view of another example of a sheet supply stocker.

FIG. 6 is a schematic diagram illustrating a first use example of the sheet supply stocker.

FIG. 7 is a schematic diagram illustrating a second use example of the sheet supply stocker.

FIG. 8 is a schematic diagram illustrating a third use example of the sheet supply stocker.

[Explanation of symbols]

1: stocker for sheet supply, 2: cylinder, 3: piston rod, 4: piston head, 5: piston guide member, 6: winding spring, 7: joining member, 8: rotating shaft, 9: leaf spring, 10: claw Part, 11: sheet, 12: viewing window, 1
3: cylinder outer wall flange, 14: cylinder engaging part, 1
5: leaf spring fixing screw, 16: air cylinder, 17: piston, 18: stopper, 101: continuous adhesive sheet,
102 guide roll, 103: detector, 104: guide roll, 105: take-up roll, 106: air cylinder, 107: elevating arm, 108: holding roll, 1
09: cylinder holding cylinder, 110: gantry, 111: motor, a: air inlet, b: air outlet, c: pushing force direction, d: vertical reciprocating direction, 200: adhesive tape roll, 201: lower guide , 202: upper guide, 20
3: receiving stand, 204: air cylinder, 205 groove type guide, 301: continuous adhesive sheet, 302: guide roll, 3
03: press roll, 304: cutting device, 305: suction holding device, 306: laminated plate, 307 laminated adhesive sheet, 308: air cylinder, 309: holding cylinder, 31
0: arm, 311: stand.

Claims (5)

[Claims] 1. A cylinder and a piston slidably fitted in a hollow portion of the cylinder, and sheet peripheral edge pressing claws are formed at intervals around a distal end opening edge of the cylinder. A laminated sheet storage portion is formed between the piston and the head of the piston, and a guide member for slidably guiding the piston is fixed to a rear end of the cylinder. A sheet feeding stocker, wherein a pressing means for pressing up the piston at a constant pressure is connected to the rear end. 2. The sheet supply stocker according to claim 1, wherein the pressing means for pressing up the piston at a constant pressure is a wrap spring. 3. The pneumatic cylinder according to claim 2, wherein said pushing means for pushing up the piston at a constant pressure is a pneumatic cylinder.
The sheet supply stocker described in the above. 4. The sheet supply according to claim 1, wherein the cylinder of the sheet supply stocker is provided with a viewing window on a side wall of the laminated sheet storage unit. For stockers. 5. A claw formed at a peripheral edge of an opening of a cylinder of the sheet supply stocker is inclined and protrudes upward from a peripheral edge of the cylinder to a central portion of the cylinder, and faces a space inside the cylinder of the claw portion. The lower surface is formed in a tapered shape from the peripheral edge of the cylinder toward the distal end, and presses the peripheral edge of the stored laminated sheet. The sheet supply stocker according to claim 1.