JPH0821916A - Method for manufacturing rectangular chip continuum - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to automatically and accurately manufacture a rectangular chip continuum from a strip-shaped sheet material cut from an original sheet such as a polarizing film. [Structure] The work (6) as a rectangular chip, which is obtained by cutting a strip-shaped sheet into a fixed length in the longitudinal direction from below, is adsorbed on a bed (3).
Then, the adsorption bed (3) is attached to the mount tape (70) from the peeling section (S ₂ ) for peeling the covering film of the work (6) using the adhesive tape. It is transferred intermittently to the adhering section (S ₃ ), and in the adhering section, the mount tape (70) is applied to the adhesive layer of the work (6) exposed in the peeling section (S ₂ ). (7
Pressing 0) to bond them together, and then feeding the mount tape by a certain size and repeating the above series of steps.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a rectangular chip continuous body, and in particular, a strip-shaped sheet material having an adhesive layer on one surface coated with a peelable coating film is cut into rectangular chips, and the coating is carried out. The present invention relates to a method of sticking and arranging a film on a releasable surface of a strip-shaped mount at a constant interval in a state of being peeled off.

[0002]

2. Description of the Related Art As shown in FIG. 1, a polarizing film used in a liquid crystal device is formed on the back surface of the polarizing layer (9) while the surface of the polarizing layer (9) is covered with a protective film (91). Remove the adhesive film (92) from the covering film (9
The cross-sectional structure is covered by (0). Usually, the polarizing film having the above-mentioned cross-sectional structure is once produced as a large rectangular original sheet of a certain size, and this is cut into a band-shaped sheet material according to the absorption axis angle, and further according to the size of the liquid crystal device. It is cut into a rectangular chip, and this rectangular chip is incorporated into a liquid crystal device.

Recently, the assembling of the rectangular chips has been automated, and in the most recent automatic assembling apparatus, the rectangular chips (C) (C) are attached to the mount tape (70) at regular intervals on the peelable surface of the strip mount. A continuous rectangular chip as shown in FIG. 2 is used. In order to manufacture such a rectangular chip continuous body, after cutting the above strip-shaped sheet material into rectangular chips (C), the covering film (90) is peeled off, and the rectangular chips (C) are manually mounted on a mount tape ( Although it may be possible to attach it to 70), in this case, there is a problem in workability and a problem in the precision of attaching the rectangular chip.

The present invention has been made on the basis of such a background, and it is possible to automatically and accurately manufacture the rectangular chip continuum from a strip-shaped sheet material cut from an original sheet of a polarizing film or the like. Let's take that issue.

[0005]

[Technical Means] A technical means of the present invention for solving the above-mentioned problem is to provide a guide groove (10) having a cross section substantially equal to the width and depth of the cross section of a strip-shaped work (W) on the upper surface. A feed bed (1) formed in a direction, and a feeding device provided above the feed bed (1) for intermittently transferring the work (W) along the guide groove (10). And this supply bed
Cutting section (S ₁ ), peeling section (S ₂ ), and sticking section (S ₃ ) provided in series on the downstream side of the work transfer direction of ( ₁ )
And the holding plate (2) whose flat lower surface is in contact with the upper surface of the downstream end of the supply bed (1) and which is projected to the cutting section (S ₁ ).
A cutting blade (4) continuously arranged at the downstream end of the supply bed (1) and facing the lower surface of the pressing plate (2), and a cross section of the work (W). It has a holding groove (32) of the same width and depth and moves intermittently from the cutting section (S ₁ ) through the peeling section (S ₂ ) to the attaching section (S ₃ ) at a predetermined timing. Then the cutting section (S
₁ )) The suction bed (3) that operates at the same height as the supply side bed (1), and the product work (6) after cutting is adsorbed and attached to the suction bed (3). Suction means that operates to release the adsorption in section (S ₃ ),
A pressing piece (51) that is vertically movable above the moving area of the adsorption bed (3) in the peeling section (S ₂ ) and this pressing piece.
An adhesive tape (T) stretched at the lower end of (51) so that the adhesive surface faces downward, and a tape transfer means for intermittently running the adhesive tape (T) at a predetermined timing. The mount tape (70) stretched in a direction perpendicular to the moving direction of the suction bed (3) above the moving area of the suction bed ( ₃ ) in the section (S ₃ ), and the mount tape A pressing roll (73) for pressing it against the upper surface of (3),
Using a device equipped with a mount tape transfer means for transferring the mount tape (70) in accordance with the sticking interval of the product work (6), a coating film (9) is provided in the guide groove (10) of the supply side bed (1).
Hold the work (W) so that (0) is the upper surface, and attach the adsorption bed.
Position (3) in the cutting section (S ₁ ) and feed bed
The work (W) held in (1) is moved to the cutting section (S ₁ ) by projecting the end of the work (W) into the cutting section (S ₁ ) by a size suitable for the cutting size, and the blade (4 ) Is moved up and down to cause the blade (4) to bite into the lower surface of the holding plate (2) to cut the protruding portion of the work (W) into a product work (6), and this product work (6 ) Is adsorbed to the adsorption bed (3) and this adsorption bed (3) is moved to the separation section (S ₂ ) and stopped, and in this stopped state, the adsorption bed (3)
The adhesive surface of the adhesive tape (T) along the lower end of the pressing piece (51) is pressed against the upper surface of the product work (6) adsorbed on ) Is lifted together with the pressing piece (51) to peel off the coating film (90), and then a new adhesive surface of the adhesive tape (T) is pressed (5
1) below the step of moving the adsorption bed (3) to the attachment section (S ₃ ) and stopping the adsorption bed (3).
After the backing tape (70) is pressed against the adhesive layer (92) of the product work (6) held in (3) by the pressing roll (73), the pressing roll (73) is stopped while the suction means is stopped. 73) ascending and returning, and then transferring the mount tape (70) by a certain distance by the mount tape transfer means.
After that, the suction bed (3) is moved back to the cutting section (S ₁ ) and the above-mentioned series of steps are performed so that the product works (6) are sequentially adhered to the mount tape (70) at predetermined intervals. I did that.

[0006]

[Action and effect] Work in the guide groove (10) of the supply side bed (1)
If (W) is stored, it will be cut into product work pieces (6) of a certain size, and then the covering film (90) will be peeled off, and then it will be attached to the mount tape (70) at the sticking section (S ₃ ). By sticking and repeating this, the product works (6) (6) are stuck and arranged on the mount tape (70) at regular intervals.

In this series of processes, since the work (W) and the product work (6) are not touched by humans,
(6) There is no concern that it will be soiled. Also, this sticking interval is
Since the mount tape transfer means for transferring the mount tape (70) according to the sticking interval of the product work (6) appropriately determines, the accuracy of this sticking interval is high.

[0008]

Embodiments Next, the embodiments of the present invention described above will be described with reference to FIGS.
According to. Apparatus for carrying out the method of the invention
Has a configuration as shown in FIG. 3 as a whole. First,
Overall, the work supply has a supply side bed (1)
On the downstream side, the work (W) is
For cutting into products (hereinafter referred to as product work (6))
Cutting section (S₁) Is provided, and the peeling section is
Option (S ₂) And pasting section (S₃) In series in this order
Will be placed.

The supply bed (1) is a rectangular table,
As shown in FIG. 4, there are a plurality of guide grooves (10) (10) on the upper surface thereof for guiding the work (W). The width and depth of the cross section of the guide groove (10) are It is set slightly larger than those of the cross section of W). The distance between the guide grooves (10) and (10) on the left and right matches the arrangement interval of the product works (6) and (6) on the mount tape (70).

Feed rolls (11) and (11) for transferring the work (W) accommodated in the guide groove (10) in the longitudinal direction are arranged above the upstream side of the supply bed (1). There is. At the downstream end of the supply bed (1), the blade receiving part (2
The pressing plate (2) equipped with 1) is in contact. Since the lower surface of this holding plate is configured as a horizontal surface, in this contact state, as shown in FIG. 5, a work piece is placed between the feeding side bed (1).
A passage with a rectangular cross section through which (W) passes will be formed. In addition, the downstream end of the holding plate (2) is located on the supply side bed (1).
It projects from the downstream end to the cutting section (S ₁ ) side.

An adsorption bed (3) for adsorbing and holding the product work (6) placed on the upper surface is arranged on the extension line of the supply side bed (1) by the linear driving device (M). It is reciprocally moved intermittently in the range of ₁ ) to the attachment section (S ₃ ) and so as to stop at each section. A suction circuit (31) from a negative pressure source (30) is connected to the adsorption bed (3), and the suction circuit (31) communicates with the porous portion on the upper surface of the adsorption bed (3).

[Cutting section (S ₁ ) and adsorption bed (3)
About] In the cutting section (S ₁ ), the starting point position is set so that a predetermined space is created between the adsorption bed (3) at the starting point position on the most upstream side and the supply side bed (1). The cutting blade (4) faces below this. This blade
(4) is a cutting mechanism (40) that moves up and down at a predetermined timing.
Driven by. Further, the end portion of the pressing plate (2) projects above the adsorption bed (3) so as to close the space.

The upper surface of the adsorption bed is composed of a porous material or a plate material provided with a large number of small holes (33) (33), and the porous material or the small hole group is provided with a negative pressure source (30). Suction circuit (3
1) is connected in communication and the open / close valve (32
The suction state and suction stop are controlled by opening and closing 1). The upper surface of the adsorption bed (3) matches the structure of the upper surface of the supply side bed (1), and a plurality of works (W)
Form the same number of holding grooves (32) (32) with the same width and depth as the guide grooves (10) (10) of the supply bed (1) so as to match the arrangement interval of (W). A positioning device (41) is provided above the adsorption bed (3) located in the cutting section (S ₁ ). The position of the positioning device (41) on the upper surface of the adsorption bed (3) is adjusted in the transfer direction of the work (W) by the adjusting device (46) using the feed screw (44) and the guide shaft (45). It is possible.

The positioning device (41) has a suction bed (3)
Is provided with a stopper (42) facing the upper surface of the stopper, and the cross section of the lower surface of this stopper is set so as to match the cross-sectional shape of the upper surface of the adsorption bed (3) including the holding grooves (32) (32).
The protrusions (42a) provided therein are individually fitted into the holding grooves (32) (32). The adjusting device (46) adjusts the contact position of the stopper (42) of the positioning device (41) with respect to the suction bed (3) according to the cutting size of the work (W) (size of the product work (6)). By this adjustment, the cutting length of the work (W) is set to a desired length.

The work (W) is inserted between the holding plate (2) and the guide groove (10) of the supply side bed (1) by the feed roll (11) arranged above the supply side bed (1), The feeding operation of the work (W) is stopped in a state where the tip end thereof is in contact with the stopper (42). After this, the blade (4) rises and the work (W)
Cut the tip side of. Blade support (21) on the underside of the holding plate (2)
The cutting operation is executed in such a manner that the tip of the blade (4) bites into. Therefore, the blade receiving portion (21) is made of a synthetic resin plate or a urethane sheet, and this is attached to the lower surface of the holding plate (2).

In the cutting step, the adsorption bed (3)
Is in a non-adsorbed state until the tip of the work (W) contacts the stopper (42), and thereafter is kept in an adsorbed state after the cutting step. Therefore, the product work after the cutting is completed (6)
Is held in the adsorption bed (3). After this, use the air cylinder (43) of the positioning device (41) to stop the stopper.
(42) is returned to the top dead center position, and the adsorption bed (3) is moved to the position of the peeling section (S ₂ ).

[Peeling section (S ₂ )] In the peeling section (S ₂ ), the adhesive tape (T) drawn from the tape roll (R ₁ ) is wound on the take-up reel (R ₂ ) via the pressing piece (51). ) Is equipped with a stripping device (5). At the lower end of the pressing piece (51), the adhesive surface (T ₁ ) of the adhesive tape (T) is in contact with the lower surface, and the upper surface of the product workpiece (6) adsorbed and held on the adsorption bed (3). The coating film (90) of ( ₁ ) is adhered by the adhesive surface (T ₁ ) of the adhesive tape (T), and then the pressing piece (51) is slightly lifted by the air cylinder (52) and the adsorption bed (3). By moving the pressing piece (51) to the downstream side of the upper surface of (3) by the air cylinder (53), the covering film (90) of the product work (6) is peeled from the upper side to the lower side. (Refer to FIG. 7) Depending on the size of the product workpiece (6), the peeling can be performed only by moving the pressing piece (51) up and down.

When this peeling is completed, the take-up reel (R
₂ ) The adhesive tape (T) is rolled up by a certain angle, and the adhesive surface of the new adhesive tape (T) is exposed on the lower surface of the pressing piece (51). [Adhesion section (S ₃ )] Product work peeled off
The adhesive layer (92) is exposed on the upper surface of (6), and the adsorption bed (3) that adsorbs and holds this is attached to the attachment section (S ₃ ).
Be moved to. This adhesive section (S ₃ ) has a backing tape
Equipped with (70) and a sticking device (7).

The sticking device (7) is, as shown in FIGS.
Mount roll (71) and take-up reel (72) of mount tape (70) running in a direction perpendicular to the moving direction of the suction bed (3)
And a pressure roll (73) provided between the product and the product work (6) (6) on the upper surface of the adsorption bed (3).
And an air cylinder that drives the pressing roll (73) up and down.
(74) and an air cylinder (75) for moving the pressing roll (73) and the pressing roll (73) left and right. The mount tape (70) to which the product workpieces (6) and (6) are attached is clamped on the side of the suction bed (3) (on the take-up reel (72) side) and pulled out horizontally for a certain distance. A drawer device (76) is provided for this purpose. This drawer has a clamp claw (76
1) and the clamp operation part (762) that drives it open and close,
It consists of a feed mechanism (763) that horizontally drives this.

Further, a step roll (77) is provided on the side of the mount roll (71) of the suction bed (3), and this step is used when the mount tape (70) is pulled out by the pull-out device (76). The roll (77) is pulled up from the bottom dead center position to the top dead center position,
By the descending movement of the corrugated roll (77) from the top dead center position, the mount tape (70) is pulled out from the mount roll (71) by a predetermined size.

When the suction bed (3) is moved to the sticking section (S ₃ ), the pressing roll (73) located at the top dead center position of the initial position (above the product workpiece (6) at the right end in FIG. 8) is moved. ) Is pushed down by the air cylinder (74) and is adsorbed and held on the upper surface of the adsorption bed (3) .Adhesive layer (92) of the product work (6)
The mount tape (70) is pressed against. Then, the pressure roll (73) in a state where the mount tape (70) is pressed by the air cylinder (75) is horizontally moved as it is, and the product workpieces (6) (6) suction-held on the suction bed (3) are removed. Mount tape (7
It is attached to the peelable surface of 0). After that, the pressure roll (73) is raised and returned by the air cylinder (74).

Next, in the initial state, the clamp claw (76
The clamp device (76) in the state that the mount tape (70) is clamped by 1) is activated, and the clamp claw (761) clamps the mount tape (70) by the clamp operation part (762) and the feeding mechanism (763 ), And pull it toward the take-up reel (72). Simultaneously with or before the pulling-out operation, the on-off valve (3) inserted into the suction circuit (31) from the negative pressure source (30).
21) is closed and the suction pressure disappears, and the adsorption bed (3) is in a non-adsorption state. Therefore, the product workpieces (6) (6) attached to the mount tape (70) are separated from the suction bed (3) and move with the mount tape (70) without difficulty. After that, the clamp claw (761) is released by the clamp operation part (762) to be in an unclamped state, and then the feeding mechanism (76
3) by the clamp claw (761) and the clamp operating part (76
2) is returned to the initial position, and the clamp claw (761) is returned to the clamped state.

Then, or simultaneously with the above operation, the pressure roll (7) lifted by the air cylinder (74).
3) The pressure roll (73) is returned to the initial position by the air cylinder (75). The take-up reel (72) winds the mount tape (70) including the product workpieces (6) (6) to a predetermined size in synchronization with the above-mentioned drawing operation. After that, after the clamp claw (761) is returned to the initial position and returned to the clamped state, the corrugated roll (77) is pushed down from the top dead center position to the bottom dead center position, and the mount tape (70) is mounted on the mount roll. A certain size is drawn from (71).

As described above, the mount tape (70) pulled out by the clamp device (76) is wound around the take-up reel (72), and the mount tape (70) located above the suction bed (3) is removed. It will be maintained in place.
Also, since the step roll (77) moves to the bottom dead center position,
The mount tape (70) can be pulled out by the clamp device (76).

After the above series of operations is completed, the suction bed (3) is returned to the cutting section (S ₁ ), after which the work (W) is fed again by a fixed amount and after the cutting operation is executed. The above series of operations is repeated. As a result, the product works (6) (6) are attached to the mount tape (70) at a predetermined pitch.

The size of the mount tape (70) pulled out by the clamp device (76) is determined by the relationship between the number of product works (6) (6) of the suction bed (3) and the arrangement interval thereof. In this embodiment, it corresponds to the sum of the lengths of the four product workpieces (6) (6) (the length in the longitudinal direction of the mount tape (70)) and the dimension of four times these arrangement intervals. The length is set.

[Brief description of drawings]

FIG. 1 is a sectional view of a polarizing film.

FIG. 2 is an explanatory diagram of a rectangular chip continuum.

FIG. 3 is an explanatory view of an apparatus for carrying out the present invention.

FIG. 4 is a cross-sectional view showing the relationship between the supply bed (1) and the feed roll (11).

FIG. 5 is a cross-sectional view showing the relationship between the supply-side bed (1) and the holding plate (2).

FIG. 6 Detailed view of the cutting section (S ₁ ).

FIG. 7 is an explanatory diagram of a peeling process in the peeling section (S ₂ ).

FIG. 8 is a sectional view taken along line XX.

[Explanation of symbols]

(W) ・ ・ ・ Work (10) ・ ・ ・ Guide groove (1) ・ ・ ・ Supply bed (S ₁ ) ・ ・ ・ Cutting section (S ₂ ) ・ ・ ・ Peeling section (S ₃ ) ・ ・ ・ Paste Dressing section (2) ・ ・ ・ Presser plate (4) ・ ・ ・ Blade (32) ・ ・ ・ Holding groove (3) ・ ・ ・ Suction bed (51) ・ ・ ・ Pressing piece (T) ・ ・ ・ Adhesive tape ( 70) ・ ・ ・ Mounting tape (73) ・ ・ ・ Pressing roll (6) ・ ・ ・ Product work (90) ・ ・ ・ Coating film (92) ・ ・ ・ Adhesive layer

Claims (1)

[Claims] 1. A supply-side bed (1) having a guide groove (10) having a cross section substantially equal to the width and depth of the cross section of a strip-shaped work (W) formed on the upper surface in the longitudinal direction, The work is installed above the supply bed (1).
A feeding device for intermittently transferring (W) along the guide groove (10), and a cutting section (S ₁ ) and a peeling section provided in series on the downstream side in the work transfer direction of the supply side bed (1). (S ₂ ), the sticking section (S ₃ ), and the holding plate (2) in which the flat lower surface is in contact with the upper surface of the downstream end of the supply-side bed ( ₁ ) and is projected to the cutting section (S ₁ ). A cutting blade (4) continuously arranged at the downstream end of the supply bed (1) and facing the lower surface of the pressing plate (2), and a cross section of the work (W). It has a holding groove (32) of the same width and depth and is separated from the cutting section (S ₁ ) by the peeling section (S ₁ ).
Operates at the same height as the supply bed (1) so that it moves intermittently to the pasting section (S ₃ ) at a predetermined timing via ₂ ) and then returns to the cutting section (S ₁ ). a sorbent bed (3), and suction means for the operative to solve the adsorbed sticking section with adsorbed (S ₃₎ the product workpiece after cutting the sorbent bed (3) (6), the peeling section (S _The pressure piece (51) is provided above the moving area of the adsorption bed (3) in ( ₂ ) so that it can be moved up and down, and the lower end of the pressure piece (51) is stretched so that the adhesive surface faces downward. Adhesive tape (T), tape transfer means for intermittently running this adhesive tape (T) at a predetermined timing, and the adsorption area above the moving area of the adsorption bed (3) in the adhering section (S ₃ ). Mount tape (70) stretched at right angles to the moving direction of the bed (3)
A pressure roll (73) for pressing the mount tape against the upper surface of the adsorption bed (3), and a mount tape transfer means for transferring the mount tape (70) in accordance with the sticking intervals of the product works (6). Using a device equipped with a work (W), the work (W) is housed in the guide groove (10) of the supply side bed (1) so that the coating film (90) is on the upper surface, and the adsorption bed (3) is cut into the cutting section (S ₁ ), And the work (W) held on the supply side bed ( ₁ ) is projected to the cutting section (S ₁ ) by the end of this work (W) by a size suitable for the cutting size. And the blade (4) is driven up and down to hold down the blade (4).
The step of cutting the protruding part of the work (W) into the product work (6) by digging into the lower surface of (2), and adsorbing the product work (6) to the adsorption bed (3). 3) is moved to the peeling section (S ₂ ) and stopped, and in this stopped state, the adhesive along the lower end of the pressing piece (51) is adhered to the upper surface of the product workpiece (6) adsorbed on the adsorption bed (3). After sticking the adhesive surface of the tape (T) to the covering film (90), the adhesive tape (T) is lifted together with the pressing piece (51) to peel off the covering film (90), and then adhered. Positioning the new adhesive surface of the tape (T) below the pressing piece (51), moving the adsorption bed (3) to the attachment section (S ₃ ) and stopping it, and then adsorbing the adsorption bed (3). Product work held by
After the backing tape (70) is pressed against the adhesive layer (92) of (6) by the pressure roll (73), the pressure roll (73) is raised and returned with the suction means stopped, and then The step of transferring the mount tape (70) by a mount tape transfer means for a certain distance, and thereafter, the suction bed (3) is moved back to the cutting section (S ₁ ) and the series of steps described above are performed to execute the series of steps. A method of manufacturing a rectangular chip continuum, in which product works (6) are sequentially adhered to a paper tape (70) at predetermined intervals.