JP2012166932A - Work supplier of sheet material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To convey sheet materials without producing damage or shape change when they are conveyed.SOLUTION: A work supplier 2 is an apparatus which peels a protective film 42 and conveys sheet materials 40 in which the protective film 42 is attached to an adhesive face, and the work supplier 2 includes: a first base 10 having a feed means which loads the sheet materials 40, uses force of peeling and winding the protective film 42, and moves the sheet materials 40 from the upper stream toward the lower stream; a peeling hastening roller 20 which is composed of a peeling hastening roller shaft 21 provided with unevenness substantially in parallel with a shaft direction by knurl work, and a silicon tube 22 covering a periphery of the peeling hastening roller shaft 21, is installed downstream of the first base 10, and conveys the peeled sheet materials 40 further downstream; and a second base 30 which is installed downstream of the peeling hastening roller 20, and conveys the sheet materials 40 conveyed from the peeling hastening roller 20 further downstream.

Description

  The present invention relates to a sheet material processing and supplying apparatus.

  In recent years, the amount of heat generated by electronic components tends to increase as performance of power transistors, integrated circuit chips, and the like increases. However, the temperature rise due to heat generation of the electronic component may cause a malfunction of the electronic component. Therefore, generally, as a countermeasure against temperature rise, a method of diffusing heat by attaching a heat sink such as a heat sink or a heat radiating fin to a heat generator such as an electronic component is used.

  A sheet material having high heat conductivity is provided between the heat generating body and the heat radiating body in order to conduct heat efficiently by bringing them into close contact with each other. Here, as the sheet material, a sheet material having flexibility and adhesiveness is used so that the heat generating body and the heat radiating body are in close contact with each other even when the sheet has unevenness.

The adhesive surface of the sheet material is protected by a protective film or the like, and the protective film is peeled off from the adhesive surface when the sheet material is used. The operation of peeling off the protective film from the sheet material is usually performed manually by the operator.
However, when the protective film is peeled from the sheet material, the adhesive surface sticks to the operator's hand, and the sheet material may be damaged or the shape of the sheet material may change. Further, if the separation work is carefully performed so that the shape of the sheet material does not change, the burden on the operator increases and the work efficiency deteriorates.

  Disclosed is a processing apparatus that processes a sheet material into a fixed-size shape and peels a release paper such as a protective film from the sheet material without depending on an operator's manual work (for example, Patent Document 1 and Patent Document). 2).

Further, if the sheet material is processed into a standard size shape and transported after the release paper is peeled from the sheet material, the sheet material may be damaged or the shape may be changed.
Therefore, a processing apparatus that grips and conveys a sheet material from which release paper has been peeled is disclosed (for example, Patent Document 3).
A processing supply device is disclosed in which the shape of a roller for conveying a sheet material is tapered toward the outer periphery, such as a star shape or a gear shape (for example, Patent Document 4).
A processing apparatus is disclosed in which a sheet material is arranged and conveyed on a plurality of protruding members to reduce the area where the sheet material contacts during conveyance (for example, Patent Document 5).
A processing supply device is disclosed in which a release film side to be peeled from a sheet material is adsorbed by an adsorption pad to convey the sheet material (for example, Patent Document 6).
An apparatus for conveying a sheet material by ultrasonic vibration is disclosed (for example, Patent Document 7).
In addition, there is a processing supply device that conveys a sheet material using a cylindrical roller 50 as in the conventional processing supply device shown in FIG.

JP 2001-162594 A Japanese Patent Laid-Open No. 06-183634 Japanese Patent Application Laid-Open No. 07-010354 JP 2010-168058 A JP 2009-016430 A JP 2007-106531 A JP 2001-089013 A

If the cylindrical material is used as the roller 50 for conveying the sheet material as in the processing supply apparatus shown in FIG. 6, the contact area between the sheet material and the roller 50 increases. For this reason, the roller 50 and the sheet material are bonded to each other during conveyance, and the sheet material may not be separated from the roller 50 at a position where the sheet material is to be separated, and the sheet material may be broken.
In addition, when the roller shape is a star shape or a gear shape as in the processing device disclosed in Patent Document 4, the contact area that touches the sheet material on the outer peripheral surface is reduced, but the pressure applied to the contact point is reduced. Since it becomes high, the sheet material may be damaged.
Further, even when the sheet material is transported on the pedestal instead of on the roller, the sheet material is strongly adhered to the pedestal, which may cause a change in the shape of the sheet material during transportation.

  It is an object of the present invention to provide a processing and feeding apparatus that solves such problems and is unlikely to cause damage or deformation of the sheet material when the sheet material is conveyed.

  The processing supply device according to the present invention is a device that peels off the protective film and conveys a sheet material having a protective film pasted on an adhesive surface, on which the sheet material is placed, and the protective film is A first pedestal having feeding means for moving the sheet material from upstream to downstream by using a peeling and winding force, and a peeling promoting roller shaft provided with irregularities substantially parallel to the axial direction by knurling; A peeling tube that covers the outer periphery of the peeling promotion roller shaft, is installed downstream from the first pedestal, and conveys the peeled sheet material further downstream; downstream from the peeling promotion roller A second pedestal that is installed and conveys the sheet material conveyed from the peeling promotion roller further downstream.

  According to the present invention, the sheet material can be transported without causing damage or shape change.

It is a side view of the processing supply apparatus concerning Embodiment 1. FIG. It is a side view of the processing supply apparatus concerning Embodiment 1. FIG. It is a figure which shows the state by which the sheet | seat material was provided on the process base concerning Embodiment 1. FIG. FIG. 3 is a diagram of a peeling promoting roller shaft according to the first exemplary embodiment. 1 is a plan view of a processing supply apparatus according to a first embodiment. It is a side view of the disclosed process supply apparatus.

Embodiment 1
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of the processing supply apparatus according to the first embodiment. FIG. 2 is a side view of a processing / supplying apparatus that performs cutting processing of the sheet material. Hereinafter, a description will be given with reference to FIG.

The processing supply device 2 includes a first pedestal 10, a peeling promotion roller 20, and a second pedestal 30.
The first pedestal 10 is a processing pedestal that includes a folded portion 11, a protective film take-up shaft 12, a film chuck 13, and a cutter 14. A sheet material 40 is placed on the first pedestal 10.

The sheet material 40 includes a sheet portion 41 and a protective film 42. FIG. 3 is a diagram showing a state where the protective film 42 is stuck on the sheet portion 41. The sheet part 41 is, for example, a heat dissipation sheet. As for the sheet | seat part 41, one surface is an adhesion surface and the adhesive is apply | coated to the adhesion surface. The protective film 42 is attached to the adhesive surface of the sheet portion 41 and protects the adhesive surface of the sheet portion 41.
The sheet material 40 is placed on the first pedestal 10 with the protective film 42 on the lower surface. The unprocessed sheet material 40 placed on the first pedestal 10 has a long strip shape.

The first pedestal 10 is a pedestal including a folded portion 11 having a sharp tip. For example, in the 1st base 10, the process which cut | disconnects the sheet | seat material 40 before a process into a fixed shape using the cutter 14 is performed.
The folded portion 11 is provided at the distal end portion of the first pedestal 10. That is, the folded portion 11 is disposed on the downstream side in the conveyance of the sheet material 40 in the first pedestal 10. In the folded portion 11, the protective film 42 is peeled off from the sheet material 40 by folding only the protective film 42 and pulling the sheet material 40 obliquely downward. The sheet portion 41 peeled off from the protective film 42 advances in a substantially horizontal direction from the folded portion 11 toward the peeling promotion roller 20.

  The protective film take-up shaft 12 is provided at the lower part of the first pedestal 10. The protective film winding shaft 12 is a feeding means that moves the sheet material 40 on the first base 10 by winding the protective film 42. More specifically, the protective film winding shaft 12 pulls and winds the protective film 42 peeled off from the sheet portion 41 in the folded portion 11.

  The film chuck 13 is installed between the protective film take-up shaft 12 and the folded portion 11. The film chuck 13 guides the protective film 42 by sandwiching the protective film 42.

The cutter 14 is provided at the tip of the first pedestal 10 and is displaced up and down by a drive mechanism (not shown).
The cutter 14 cuts the sheet material 40 that has moved from the turn-up portion 11 by a fixed length as the protective film take-up shaft 12 takes up the film. Here, the cutting process of the sheet material 40 by the cutter 14 performs half-cutting by cutting only the sheet portion 41 and not cutting the protective film 42.
Although not shown, it is preferable that the cutter 14 performs the cutting operation in a state where the cutter 14 is aligned with the first base 10.

  The peeling promotion roller 20 includes a peeling promotion roller shaft 21 and a silicon tube 22. The peeling promotion roller 20 is provided on the downstream side of the first base 10. The peeling promotion roller 20 rotates to convey the sheet portion 41 conveyed from the folded portion 11 to the second pedestal 30 further downstream.

The peeling promotion roller shaft 21 is rotated by a predetermined drive mechanism (not shown). The exfoliation promoting roller shaft 21 is knurled and has an irregular shape on the circular diameter. FIG. 4 is a diagram showing an outline of the separation promoting roller shaft 21. As shown in FIG. As shown in FIG. 4, for example, the peeling promotion roller shaft 21 is knurled at three locations on the outer periphery substantially parallel to the shaft, and is provided with a recess 23. Thereby, the peeling promotion roller 20 has a smaller area in contact with the sheet portion 41 as compared with a case where the roller shape of the peeling promotion roller shaft 21 is simply a cylindrical shape.
The position and number of knurls applied to the peeling promotion roller shaft 21 are not limited to the above. It is desirable that the interval between the recesses 23 provided in the separation promoting roller shaft 21 by the knurling process is shorter than the fixed length of the sheet portion 41 to be cut.

  The silicon tube 22 covers the outer periphery of the separation promoting roller shaft 21 and functions as a slip stopper when the sheet portion 41 is conveyed. Typically, the silicon tube 22 is a thin tube having flexibility. Therefore, in the state where the silicon tube 22 covers the outer periphery of the peeling promotion roller shaft 21, the shape of the recess 23 provided in the peeling promotion roller shaft 21 is not impaired. Further, by covering the knurled irregularities, the corners become curved and sheet material damage can be suppressed.

  The second pedestal 30 includes a fixed side comb plate 31 and a movable side comb plate 32. The second pedestal 30 is provided downstream of the separation promoting roller 20. FIG. 5 is a plan view of the processing supply device 2.

  As shown in FIG. 5, the stationary side comb plate 31 is a comb plate in which a large number of vertical plates are arranged in the horizontal direction at intervals. The stationary comb plate 31 is provided at a position substantially horizontal to the peeling promotion roller 20, and the sheet portion 41 is conveyed from the peeling promotion roller 20.

The movable side comb plate 32 is a comb plate having a plurality of vertical plates that move up and down the interval between the vertical plates of the fixed side comb plate 31. The movable comb plate 32 moves up and down in synchronization with the operation of the peeling promotion roller 20. As the movable side comb plate 32 moves up and down, the sheet portion 41 conveyed from the peeling promotion roller 20 is placed on either the fixed side comb plate 31 or the movable side comb plate 32.
In a state in which at least a part of the sheet portion 41 is placed on the fixed side comb plate 31 or the movable side comb plate 32, the sheet portion 41 is applied with a force in the downstream direction by the rotation of the peeling promotion roller 20. , Conveyed downstream.

  Next, operation | movement of the process supply apparatus 2 is demonstrated.

  First, the strip-shaped sheet material 40 is placed on the first base 10 with the surface on which the protective film 42 is stretched down. At this time, the protective film 42 peeled from the sheet portion 41 is installed so as to be able to be wound around the protective film winding shaft 12 via the film chuck 13 with the folded portion 11 having an acute angle as a base point. The film chuck 13 performs a guide such as preventing sagging of the protective film 42 wound around the protective film winding shaft 12 by sandwiching the protective film 42.

The protective film winding shaft 12 is operated, and the winding of the protective film 42 is started.
Since the protective film 42 wound around the protective film winding shaft 12 is not cut by the cutter 14, it is integral with the protective film 42 attached to the sheet material 40 before cutting. Therefore, when the protective film winding shaft 12 winds the protective film 42, the sheet material 40 on which the protective film 42 is pasted moves on the first pedestal 10 from the upstream side to the downstream side. For example, it is desirable that the operation of the protective film take-up shaft 12 is controlled so as to be an intermittent operation, and the movement of the sheet material 40 is performed at regular intervals.

  When the strip-shaped sheet material 40 is conveyed to the folded portion 11, only the protective film 42 is folded at an acute angle and peeled off from the sheet portion 41. At this time, the sheet portion 41 proceeds from the turn-up portion 11 in a substantially horizontal direction and is conveyed onto the separation promoting roller 20.

  When the sheet material 40 is moved by a fixed amount and the sheet part 41 is conveyed on the separation promoting roller 20 by a fixed size, the cutter 14 cuts the sheet material 40 by half cutting. A part of the sheet material 40 cut by this is peeled off from the protective film 42 and placed on the peeling promotion roller 20, and the sheet part 41 and the protective film 42 are formed in the portion cut by the cutter 14 or in the vicinity thereof. It will be in the state which has not peeled.

  The peeling promotion roller 20 conveys the sheet portion 41 in the downstream direction by rotating. As a result, the portion of the sheet material 40 where the sheet portion 41 and the protective film 42 are not peeled off, such as the cut portion or the vicinity thereof, passes through the folded portion 11 and the sheet portion 41 and the protective film 42 are peeled off To do.

Next, the peeling promotion roller 20 conveys the sheet portion 41 to the downstream fixed comb plate 31 and the movable comb plate 32.
Here, the peeling promotion roller shaft 21 of the peeling promotion roller 20 is a rotating shaft whose outer periphery is covered with a silicon tube 22, and is knurled to have unevenness. Thereby, the sheet | seat part 41 does not adhere | attach with the recessed part provided in the peeling acceleration | stimulation roller shaft 21. FIG. Therefore, the adhesion between the sheet portion 41 and the separation promoting roller 20 is weaker than when a cylindrical roller is simply used, and the sheet portion 41 is separated from the separation promoting roller 20 by the fixed side comb plate 31 and the movable side comb plate 32. When the sheet is conveyed, the peeling promotion roller 20 and the sheet portion 41 are not peeled off, so that sagging occurs and the shape is prevented from being deformed.

The movable side comb plate 32 moves up and down at the interval between the vertical plates of the fixed side comb plate 31. When the sheet portion 41 is conveyed from the peeling promotion roller 20, a part of the sheet portion 41 is placed on the fixed side comb plate 31 or the movable side comb plate 32, and another part of the sheet portion 41 is placed on the peeling promotion roller 20. It will be on the state. Here, the movable side comb plate 32 moves up and down in synchronization with the peeling promotion roller 20. Moreover, the peeling promotion roller 20 sends out the sheet part 41 by rotating.
Since the sheet portions 41 are alternately in contact with either the stationary side comb plate 31 or the movable side comb plate 32, the contact area is reduced, and the sheet portion 41 can be conveyed without being adhered.

Thereby, the peeling acceleration roller 20 can send out the sheet material while suppressing the sagging fold after the peeling of the sheet portion 41.
Moreover, since the speed of peeling of the protective film 42 can be kept constant with respect to the sheet material 40 having high flexibility and low tensile strength, the elongation of the sheet material 40 can be suppressed as compared with manual peeling.
Further, the seat portion 41 moves on the fixed side comb plate 31 by moving the movable side comb plate 32 up and down. Thereby, the sheet | seat part 41 can be conveyed without a manual intervention.
By using the peeling accelerating roller shaft 21 and the comb plate having irregularities in the conveyance, the contact point in the sheet material 40 can be minimized, and an extended state due to the sheet material 40 sticking to the pedestal is prevented.
Therefore, according to the present invention, it is possible to automate the cutting and peeling process of the sheet material 40 that has been performed manually, and to ensure a stable quality of the sheet material 40 and to perform the operation efficiently. .

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, in the above description, the lower surface of the sheet portion 41 is bonded, but a sheet with both surfaces bonded may be used. In this case, for example, when the sheet material 40 is placed on the first pedestal 10, the protective film applied to the adhesive surface corresponding to the upper side is peeled off when installed on the first pedestal 10. do it.

DESCRIPTION OF SYMBOLS 1 Process supply apparatus 2 Process supply apparatus 3 Process supply apparatus 10 1st base 11 Folding part 12 Protection film winding axis | shaft 13 Film chuck 14 Cutter 20 Peeling promotion roller 21 Peeling promotion roller axis 22 Silicon tube 23 Recess 30 Second base 31 Fixed side comb plate 32 Movable side comb plate 40 Sheet material 41 Sheet portion 42 Protective film 50 Roller

Claims (3)

A sheet material in which a protective film is adhered to the adhesive surface is a device for peeling and transporting the protective film,
A first pedestal having a feeding means on which the sheet material is placed and moves the sheet material from upstream to downstream using a force to peel off and wind up the protective film;
The peeled roller shaft provided with unevenness substantially parallel to the axial direction by knurling and a silicon tube covering the outer periphery of the peel promoting roller shaft, the sheet installed downstream from the first pedestal and peeled A peeling promoting roller for conveying the material further downstream;
A second pedestal installed downstream from the peeling promotion roller and carrying the sheet material conveyed from the peeling promotion roller further downstream;
A processing supply apparatus comprising: The second pedestal is
A fixed side comb plate in which a plurality of vertical plates are arranged in the horizontal direction at intervals, and
A movable side comb plate having a plurality of vertical plates that move up and down the interval portions of the plurality of vertical plates of the fixed side comb plate,
The sheet material is alternately supported by the fixed side comb plate and the movable side comb plate by the vertical movement of the movable side comb plate.
The processing supply apparatus according to claim 1. Further comprising a cutter that performs a half cut to cut the sheet material without cutting the protective film,
The processing supply apparatus according to claim 1 or 2.

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