KR20210153597A - Protective sheet cutting device and manufacturing method of glass substrate package - Google Patents

Abstract

An object of the present invention is to provide a protection sheet cutting device capable of suppressing conveyance failure when the protection sheet is taken out and conveyed before cutting and can improve the productivity of the protection sheet cutting process.
A lead-out portion 3 and a cut-out portion 4 for cutting the protective sheet S drawn out by the lead-out portion 3 are provided, and the lead-out portion 3 is an end of the protective sheet S on the drawing-out direction side. It has a 1st moving chuck 31A for clamping the (端部), and a first slide mechanism 31B for slidingly moving the first moving chuck 31A in an extraction direction, and the cutting part 4 has a cutting blade ( 41A) and an upstream side plate 42A and a downstream side platen (42A) and downstream platen ( 42B), and on the upper surface 42A1 of the downstream side platen 42B, a first groove portion 42B2 extending in the withdrawal direction and into which the first moving chuck 31A can enter is formed. do.

Description

Protective sheet cutting device and manufacturing method of glass substrate package

[0001] The present invention provides a protective sheet cutting device for cutting a protective sheet used when stacking and packing a glass substrate to a predetermined size, and a protective sheet cut by the protective sheet cutting device by sandwiching the protective sheet between them. It relates to the technique of the manufacturing method of the glass substrate package which consists of a several packaged glass substrate.

Glass substrates used in flat panel displays (FPDs), such as conventional liquid crystal displays, plasma displays, and organic EL displays, place a protective sheet such as paper between each glass substrate during storage or transportation. In this state, it is customary to stack and pack on a pallet in a vertical position (approximately vertical position) or horizontal position (approximately horizontal position).

The protective sheet positioned between the glass substrates is drawn out in the longitudinal direction in a state previously wound in a roll shape by a protective sheet cutting device and continuously cut to a predetermined length, and then placed in the vicinity of the protective sheet cutting device. It is sequentially placed on a pallet together with a glass substrate by a stacking device to be arranged (see, for example, 'Patent Document 1').

Japanese Patent Laid-Open No. 2010-93022

[0004] By the way, the above-described protective sheet cutting device, a chuck (chuck) for drawing out a strip-shaped protective sheet formed in a roll-shaped wound in a longitudinal direction, and a width direction orthogonal to the longitudinal direction of the drawn-out protective sheet an upstream platen and a downstream platen respectively disposed on the upstream side and the downstream side in the withdrawal direction with respect to the cutting position of the protective sheet, and the upstream platen and the downstream platen has an upstream side pressure plate and a downstream side pressure plate respectively disposed above it.

And, in the case of cutting the protective sheet, first, the end of the protective sheet in the withdrawal direction is clamped with a chuck, and then the protective sheet is pulled out by a predetermined length by the chuck, and then the With respect to the protective sheet, the upstream side of the cutting position is clamped by the upstream side plate and the upstream side pressing plate, and the downstream side of the cutting position is clamped by the downstream side plate and the downstream side pressing plate. After temporarily holding (保持), the protective sheet is cut by the cutting part.

[0005] Here, when the protection sheet is drawn out by the chuck, the end of the protection sheet in the withdrawal direction is usually located at the cutting position. become impossible

Therefore, in the conventional protective sheet cutting device, the protective sheet is once unwound by a pair of feeding rollers, and after the end of the protective sheet in the drawing direction side reaches the downstream side of the downstream platen, The end portion is clamped by a chuck and the protective sheet is pulled out.

[0006] In the conventional protective sheet cutting device having such a configuration, since the protective sheet before cutting is unwound and transported by the feeding roller disposed on the upstream side of the cut portion, the end of the protective sheet in the feeding direction is static electricity Under the influence of friction or the like, it is easy to cause conveyance defects such as bending of the cutting blade at the cutting part into the entrance and exit grooves, which is a factor that leads to a decrease in productivity in the protective sheet cutting process.

[0007] The present invention has been made in view of the problems of the present situation shown above, and after taking out the strip-shaped protective sheet in the longitudinal direction, cutting the protective sheet for cutting the protective sheet in the width direction orthogonal to the longitudinal direction An object of the present invention is to provide a protection sheet cutting device capable of suppressing conveyance failure when the protection sheet is taken out and conveyed before cutting as an apparatus, and can improve the productivity of the protection sheet cutting process.

In addition, as a method for manufacturing a glass substrate package comprising a plurality of glass substrates laminated and packed by sandwiching the protection sheet cut by the protection sheet cutting device, a glass substrate package capable of realizing a better packaging form of the glass substrate An object of the present invention is to provide a method for manufacturing

[0008] The problem to be solved by the present invention is as described above, and next, means for solving the problem will be described.

[0009] That is, the protection sheet cutting device according to the present invention is a protection sheet cutting device for cutting the protection sheet in a width direction orthogonal to the longitudinal direction after drawing out a band-shaped protection sheet in the longitudinal direction, A first pull-out portion for taking out the protective sheet, and a cutting portion for cutting the protective sheet drawn out by the lead-out portion, wherein the lead-out portion clamps an end portion of the protective sheet in the drawing-out direction. a chuck and a slide mechanism for slidingly moving the first chuck in a drawing-out direction, wherein the cutting unit includes a cutting blade for cutting the protection sheet, and a cutting position of the protection sheet by the cutting blade and a surface plate having an upstream side plate and a downstream side plate for holding the lower surface of the protective sheet, respectively, on the upstream side and downstream side of the withdrawal direction, and on the upper surface of the downstream side plate, extending in the withdrawal direction and a first groove into which the first chuck can enter is formed.

As such, in the protective sheet cutting device of the present invention, the first groove into which the first chuck can enter is formed on the upper surface of the downstream platen.

Therefore, with respect to the end of the protection sheet located at the cutting position on the withdrawal direction side, the first chuck can penetrate into the first groove to be close to it, and the end portion is clamped by the first chuck to stably hold the protection sheet. can be withdrawn with

As a result, like the conventional protective sheet cutting device, since the protective sheet is unwound with only a pair of feeding rollers, it is affected by static electricity or friction, and the end of the protective sheet in the feeding direction is less bent. , it is possible to stably take out the protective sheet by suppressing the occurrence of defective conveyance.

[0011] In addition, in the protective sheet cutting device according to the present invention, in the cutting portion, on the upper surface of the upstream side plate, a second groove portion extending in the withdrawal direction and into which the first chuck can enter is formed. it is preferable

[0012] By having such a configuration, the first chuck penetrates into the second groove formed in the upstream platen even after it penetrates the first groove and passes through the downstream platen, and further, on the upstream side of the drawing direction of the protective sheet. can move towards

Therefore, for example, due to an unexpected cause, even if the end of the protective sheet on the pull-out direction side does not reach the predetermined position and is located on the upstream side in the pull-out direction compared to the predetermined position, the first chuck It can be pulled out by firmly clamping the end of the protective sheet in the pulling-out direction.

[0013] In addition, in the protective sheet cutting device according to the present invention, the cutting part is disposed directly above the upstream side platen, and is spaced apart from the upstream side lower limit position and the upstream side platen in contact with the upstream side platen. An upstream side pressure plate that can move between the upstream side upper limit position (離隔) and the downstream side platen that are disposed directly above the downstream side platen, and are spaced apart from the downstream side lower limit position and the downstream side platen in contact with the downstream side platen It is preferable to further have a downstream pressing plate that can move between the downstream upper limit positions.

By having such a configuration, with respect to the cutting position of the protective sheet by the cutting blade, the upstream side of the withdrawal direction is held by the upstream side plate and the upstream side pressing plate, and the downstream side of the withdrawal direction is held downstream Since the pulled out protective sheet can be held by being clamped by the measuring plate and the downstream pressing plate, stable cutting can be realized when the protective sheet is cut by moving the cutting blade.

[0015] In addition, in the protection sheet cutting device according to the present invention, in the cutting portion, on the lower surface of the upstream side pressing plate, the first chuck extends in the withdrawal direction and in contact with the upstream side platen enters. It is preferable that a third groove that can be formed is formed.

[0016] By having such a configuration, for example, even when the upstream side pressing plate is positioned at the upstream side lower limit position, the first chuck passes through the downstream side platen and does not interfere with the upstream side platen without interfering with the upstream side platen. It penetrates into the space formed by the 2nd groove part of , and the 3rd groove part of the upstream side pressure plate, and can further move toward the upstream side of the drawing-out direction of a protection sheet.

Therefore, in a state in which the end of the protective sheet in the drawing-out direction is held by the upstream side plate and the upstream pressing plate, the first chuck is moved toward the upstream side in the drawing out direction, and then sufficiently close to the protection sheet, The end portion can be securely clamped and held.

[0017] In addition, in the protective sheet cutting device according to the present invention, in the cutting portion, on the lower surface of the downstream side pressing plate, the first chuck extends in the withdrawal direction, and in abutting state with the downstream side platen, the first chuck enters. It is preferable that a fourth groove that can be formed is formed.

[0018] By having such a configuration, for example, without waiting until the downstream pressing plate positioned at the downstream lower limit position moves sufficiently toward the downstream upper limit position, the first chuck is provided with the first groove portion and the downstream side of the downstream platen. Through the fourth groove portion of the pressure plate, it is possible to directly pass the downstream platen and clamp the end of the protective sheet in the feeding direction while avoiding interference with the downstream pressure plate.

Accordingly, the time required for a series of operation procedures in the protective sheet cutting device is shortened, and thus productivity can be improved.

[0019] In addition, in the protection sheet cutting device according to the present invention, the upstream side pressing plate is located at the upstream lower limit position, and the downstream side pressing plate is located at the downstream side upper limit position, and by the upstream side pressing plate In a state in which the end of the protection sheet in the withdrawal direction is pressed, the first chuck may clamp and support the end of the protection sheet.

[0020] By having such a configuration, the end of the protective sheet in the withdrawal direction is always clamped by the first chuck while being held by the upstream pressing plate.

Accordingly, the end of the protective sheet in the drawing-out direction can be reliably held by the first chuck.

[0021] In addition, in the protective sheet cutting device according to the present invention, the cutting unit includes a first biasing member for biasing the downstream pressing plate toward the downstream platen, and the upstream pressing plate. It is preferable to have a second biasing member biasing toward the upstream side platen.

[0022] By having such a configuration, by the biasing force by the second biasing member (付勢力, biasing force), the upstream side pressing plate is pressed to the upper surface of the upstream side platen, and also biased by the first biasing member By the force, the downstream pressing plate is pressed against the upper surface of the downstream platen.

That is, these upstream and downstream pressure plates are always pressed against the upstream platen and the downstream platen by a constant biasing force, so that the protective sheet can be stably held.

In addition, when the upstream side pressure plate and the downstream side pressure plate move toward the upstream side lower limit position and the downstream side lower limit position, respectively, for example, between the upstream side platen and the upstream side pressure plate, or between the downstream side platen and the downstream side pressure plate. When an unexpected foreign object is present, these first biasing members or second biasing members function as interference means, and these upstream and downstream pressure plates, or upstream and downstream platens are damaged (缺損) can be prevented from occurring.

[0023] In addition, in the protection sheet cutting device according to the present invention, the upstream side pressing plate and the downstream side pressing plate are preferably configured to be divided in the width direction of the protection sheet.

[0024] That is, in the case of the upstream side pressure plate and the downstream side pressure plate made of integrally formed long members, due to their bending, it is difficult to evenly apply a pressing force to the protective sheet in the width direction, but the present invention In , since the upstream side pressing plate and the downstream side pressing plate are each divided, the influence due to such bending is small, and the pressing force can be equally applied to the protective sheet in the width direction.

[0025] In addition, in the protective sheet cutting device according to the present invention, the surface plate is composed of separate members as the upstream platen and the downstream platen, and the upper surface of the downstream platen is the upstream platen. It is preferable to be positioned below the upper surface of the

[0026] By having such a configuration, for example, when the protective sheet is pulled out, even if the end of the protective sheet in the withdrawal direction is slightly shaken in the vertical direction, the end is less likely to be bent by interfering with the downstream side plate. It is possible to stably take out the protective sheet by suppressing the occurrence of defects.

[0027] Further, in the protection sheet cutting device according to the present invention, the protection sheet cut by the cutting unit is conveyed by the withdrawing unit to a predetermined stop position located on the downstream side in the withdrawing direction, and the The lead-out unit further includes a second chuck for clamping both ends of the protective sheet in the width direction after the cut protective sheet reaches the stop position, and after the second chuck clamps the protective sheet, It is preferable that the first chuck opens the end of the cut protection sheet in the drawing direction side, and slides through the lower side of the protection sheet toward the cut portion.

[0028] By having such a configuration, the first chuck is immediately returned to a predetermined standby position when the protection sheet reaches a predetermined stop position without waiting for the protection sheet to be cut out from the protection sheet cutting device. Therefore, the time required for a series of operation procedures in the protective sheet cutting device can be shortened, and the production efficiency can be improved.

Furthermore, in the manufacturing method of the glass substrate laminated package according to the present invention, the protective sheet cut by any of the above-described protective sheet cutting devices, and the glass substrate are alternately stacked and packed.

By having such a configuration, the case where the end of the protective sheet is bent, etc. is less, and it is possible to realize a better packing form of the glass substrate.

[0031] As the effects of the present invention, the following effects are obtained.

That is, according to the protective sheet cutting device according to the present invention, it is possible to suppress the conveyance failure at the time of taking out and conveying the protective sheet before cutting, and to improve the productivity of the protective sheet cutting process.

Moreover, according to the manufacturing method of the glass substrate package which concerns on this invention, the better packing form of a glass substrate can be implement|achieved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows the whole structure of the protective sheet cutting apparatus which concerns on one Embodiment of this invention.
Fig. 2 is a view showing the overall configuration of the protective sheet cutting device, and is a cross-sectional front view in the direction of the arrow X1 in Fig. 1 .
3 is a view showing the state of the cut part in operation as viewed in the direction of the arrow X2 in FIG. 2 over time, (a) is the upstream side pressing plate is stopped at the upstream upper limit position, and the downstream side It is a cross-sectional side view showing the state in which the presser plate is stopped at the upper limit position on the downstream side, (b) is the state in which the presser plate on the upstream side is stopped at the lower limit position on the upstream side, and the downstream press plate is stopped at the lower limit position on the downstream side. A cross-sectional side view, (c) is a cross-sectional side view showing a state in which the downstream pressing plate is moved to the downstream upper limit position and the end of the protective sheet in the withdrawal direction is clamped by the first moving chuck.
4 is a view showing the operation of the protective sheet cutting device over time, (a) is a plan view showing a state in which the end of the protective sheet in the drawing-out direction is clamped by the first moving chuck, (b) is the second 1 It is a plan view showing a state in which the protective sheet is cut by pulling out the protective sheet by a predetermined length by means of a moving chuck, and (c) is a plan view showing both ends of the sheet in the width direction cut by the second moving chuck It is a plan view showing the state of being fitted.
5 is a view showing the operation of the protective sheet cutting device over time, (a) is a plan view showing a state in which the cut sheet sheet is conveyed to the discharging section by the first moving chuck and the second moving chuck, (b) ) is a plan view showing a state in which the first moving chuck is spaced apart from the end of the sheet in the pull-out direction after clamping both ends of the sheet in the width direction of the cut sheet by a fixed chuck, (c) is the cut sheet It is a plan view showing a state in which the first movable chuck is returned to the first standby position by passing under the seat.

Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 5 .

Meanwhile, in the following description, for convenience, the direction of the arrow A in FIGS. 1 and 3 to 5 is defined as the conveyance direction of the protective sheet S.

In addition, the vertical direction of FIGS. 2 and 3 will be described as the vertical direction of the protective sheet cutting device 1 .

[0034] (Configuration of the protective sheet cutting device (1))

First, the configuration of the protective sheet cutting device 1 embodying the present invention will be described with reference to FIGS. 1, 2, 3 (a), (c) and 4 (a).

As shown in Fig. 1, the protection sheet cutting device 1 in the present embodiment cuts the band-shaped protection sheet S, which is previously wound in a roll shape, in a substantially horizontal posture in the longitudinal direction (Fig. 1). in the direction of arrow A), and thereafter, the pulled out protection sheet S is cut in the width direction perpendicular to the longitudinal direction, and a sheet protection sheet (hereinafter, appropriately It is an apparatus for manufacturing a 'sheetfed sheet (S1)').

Here, the manufactured single-wafer sheet (S1) is used as a protective member when packing the glass substrate (G), which is a separately manufactured final product, and is cut by the protective sheet cutting device (1) on the pallet (Q). A plurality of glass substrates ( A glass substrate laminated package 100 in which G·G...) is packed is formed.

[0035] In addition, the protective sheet (S) in this embodiment is made of laminated paper, but is not limited thereto. For example, it has elasticity such as a foamed resin sheet made of foamed polyethylene or the like, a resin sheet, and the like and impacts from the outside. As long as it is a material that can protect the glass substrate (G), any material may be used.

In addition, although the glass substrate G packaged by this embodiment is a glass substrate for liquid crystal displays, it is not limited to this, For example, a plasma display, an organic electroluminescent display, a field emission display (FED: Field Emission Display), the surface General glass used as a glass substrate for various flat panel displays, such as a surface-conduction electron-emitter display (SED), and a substrate for forming various electronic display functional elements and thin films A substrate can be employed.

Protective sheet cutting device (1) is provided with a base (基台, 2) serving as a base (基部), the upper surface of the base (2) has a lead-out portion (3), and the lead-out portion With respect to (3), a cut-out portion 4 or the like disposed on the upstream side of the conveyance direction (inner ear arrow A direction in Fig. 1) of the protective sheet S is provided.

The take-out unit 3 draws out the protective sheet S wound in a roll shape by a predetermined length in the conveying direction, and at the same time conveys the sheet S1 cut by the cutting unit 4 to be described later, This is a portion for holding the sheet S1 in a predetermined section (a discharging section S02 to be described later).

The lead-out part 3 is constituted by a first movable chuck device 31 , a second movable chuck device 32 , a fixed chuck device 33 , and the like.

[0038] The first movable chuck device 31 withdraws the protective sheet S by a predetermined length in the conveying direction, and then together with a second movable chuck device 32 to be described later, the cut sheet S1 A device that transports

The first movable chuck device 31 is, as an example of the first chuck, a pair of first movable chucks 31A·31A for clamping the end of the protective sheet S on the drawing-out direction side (conveying direction side), these products 1 It is composed of a pair of first slide mechanisms 31B and 31B for sliding the moving chucks 31A and 31A along the drawing direction, respectively, and an electric motor, hydraulic pressure/pneumatic cylinder, and the like. It has an actuator (not shown) etc. which synchronize and move 1 moving chuck 31A and 31A.

[0039] The first movable chuck 31A is, for example, as shown in FIGS. 3 (a) and 3 (c), a first clamping part 31A1 that opens and closes in the vertical direction, and the first clamping part It has an elevating part 31A2 which makes 31A1 move up and down (elevate|lower).

[0040] And, the pair of first movable chucks 31A·31A has a first clamping portion 31A1·31A1 toward the upstream side of the conveyance direction (arrow A direction in FIG. 3) of the protective sheet S. They are respectively arranged so as to be opened.

Further, as shown in Fig. 1, the pair of first movable chucks 31A·31A are respectively disposed so as to face both ends in the width direction at the end of the protective sheet S on the pull-out direction side.

[0041] The first slide mechanism 31B is, for example, constituted by a linear guide extending in the withdrawal direction of the protective sheet S, and a first fitting position (P01, refer to (a) of FIG. 4) to be described later, and, Between the first retracted positions (P05, see FIG. 5B ), each of the first movable chucks 31A is supported so as to be slidably movable.

[0042] In the first movable chuck device 31 having such a configuration, after the end portion of the protection sheet S in the withdrawal direction is clamped by a pair of first chucks 31A·31A, the actuator By moving these 1st moving chucks 31A·31A toward the downstream side in the conveying direction, the roll-shaped protective sheet S is drawn out by a predetermined length in the drawing direction.

Further, after the protective sheet S is cut by the cutting part 4, the first moving chucks 31A and 31A are moved again toward the downstream side in the conveying direction by the actuator, thereby forming a sheet formed of a single sheet. (S1) is conveyed toward the carrying out section (S02).

On the other hand, with respect to the number of devices of the pair of first movable chucks 31A·31A and the first slide mechanism 31B·31B, the protective sheet S can be withdrawn in a stable posture. As long as it is not limited to this embodiment, for example, only one unit may be provided, and three or more units may be provided.

[0044] In addition, in the present embodiment, on the upstream side in the conveying direction of the protection sheet S with respect to the cut portion 4, a pair of upper and lower sides (top view in FIG. 1 ) to unwind the protection sheet S toward the conveying direction Therefore, only one feeding roller 5·5 is provided, and while the protective sheet S is taken out by the first moving chuck device 31, these feeding rollers 5·5 ) is rotated by following the drawn-out protection sheet (S).

[0045] The second moving chuck device 32 is a device that, together with the first moving chuck device 31, transports the cut sheet S1 toward the discharging section S02.

The second movable chuck device 32 is a pair of clamping upstream sides in the transport direction at both ends in the width direction with respect to the protective sheet S drawn out by a predetermined length by the first movable chuck device 31 . 2nd movable chuck 32A/32A of It has an actuator (not shown), etc. which consists of a cylinder etc. and which synchronizes and moves a pair of 2nd moving chucks 32A and 32A.

[0046] The second movable chuck 32A has a second fitting support portion 32A1 that opens and closes in the vertical direction.

And the pair of second moving chucks 32A·32A is arranged on both sides of the pair of first moving chucks 31A·31A in the width direction, respectively.

Moreover, a pair of 2nd movable chuck|chuck 32A*32A is arrange|positioned so that 2nd clamping part 32A1*32A1 may open toward the width direction center part of the protective sheet S, respectively.

[0047] The second slide mechanism 32B is constituted by a linear guide extending parallel to the first slide mechanism 31B (that is, in the drawing-out direction (conveying direction) of the protective sheet S), which will be described later. Between the 2nd stand-by position P21 and the 2nd conveyance stop position P22 (refer FIG.5(a)), each 2nd moving chuck 32A is followed by the movement of 31A of 1st moving chucks. Support for sliding movement.

[0048] In the second movable chuck device 32 having such a configuration, the width direction both ends of the protective sheet S drawn out by a predetermined length by the pair of second chucks 32A·32A , After clamping the upstream side in the conveying direction, the second moving chucks 32A·32A are moved toward the downstream side in the conveying direction while synchronizing with the first moving chuck device 31 by the actuator. The used sheet S1 is conveyed toward the carrying out section S02 in a stable posture in the state held by the first moving chuck 31A and the second moving chuck 32A.

[0049] The stationary chuck device 33 is a device for holding the sheet S1 that has reached the discharging section S02 instead of the first moving chuck device 31 .

By holding the sheet S1 by the fixed chuck device 33, the sheet S1 is held by the second movable chuck device 32 and the fixed chuck device 33, and the The first moving chuck 31A of the first moving chuck device 31 is in a state capable of being immediately returned to the first standby position P02 described later.

[0050] The fixed chuck device 33, as an example of the second chuck, is a pair of fixings that clamp the downstream sides in the conveying direction at both ends in the width direction of the sheet S1 positioned in the discharging section S02. It has chucks 33A·33A and the like.

The fixed chuck (33A) has a third fitting support (33A1) that opens and closes in the vertical direction.

And the pair of fixed chucks 33A·33A are both sides in the width direction with respect to the pair of first moving chucks 31A·31A, and the conveying direction with respect to the pair of second moving chucks 32A·32A. They are respectively arranged on the downstream side.

Further, the pair of fixing chucks 33A·33A are respectively arranged so that the second clamping portions 33A1·33A1 are opened toward the central portion in the width direction of the sheet S1.

[0052] In the fixed chuck device 33 having such a configuration, the sheet S1 which has reached the carrying out section S02 is conveyed at both ends in the width direction by the pair of fixed chucks 33A/33A By clamping the downstream side in the direction, the end in the conveying direction of the sheet S1 held by the pair of first moving chucks 31A·31A is also held by the fixed chucks 33A·33A. do.

As a result, the pair of first movable chucks 31A·31A are separated from the sheet S and are in a state capable of being returned to the first standby position P02 immediately.

The cut portion 4 is a portion for forming the sheet (S1) by cutting the protection sheet (S) drawn out by a predetermined length by the lead-out portion (3) in the width direction.

The cutting part 4 is constituted by a cutting device 41 , a surface plate 42 , a pressing plate 43 , and a lifting device 44 , and the like.

The cutting device 41 is a device for cutting the protective sheet (S) drawn out by a predetermined length by the first movable chuck device 31 in the width direction.

The cutting device 41 is constituted by a cutting blade 41A for cutting the protective sheet S, and a moving mechanism 41B for moving the cutting blade 41A in the width direction, for example, as shown in FIG. 2 . .

The cutting blade 41A is, for example, made of a substantially rectangular plate-shaped member extending in the vertical direction while facing the plane in the conveying direction of the protective sheet S, and at its upper end, a cutter protruding at an acute angle (切刀) , cutter; 41A1) is formed.

In addition, the cutting blade 41A is orthogonal to the protection sheet S when viewed from the side, and is disposed such that the protection sheet S is positioned at the center of the cutting blade 41A in the vertical direction.

[0056] Then, by a moving mechanism 41B to be described later, from one side in the width direction of the protective sheet S (for example, the right side when viewed from the front in this embodiment) to the other side (for example, In this embodiment, by moving the cutting blade 41A toward the left side when viewed from the front), the protective sheet S is cut in the width direction through the cutter 41A1.

In addition, since the cutter 41A1 of the cutting blade 41A in this embodiment can cut the protective sheet S on both sides in the width direction, the moving direction of the cutting blade 41A is, Any of the direction which goes to the one side from the direction which goes to the other side from the one side of the said width direction, or the other side of the said width direction may be sufficient.

[0058] The moving mechanism 41B is, for example, a driving-side pulley 41B1 installed so as to be rotatably driven with respect to the axial center as the transport direction of the protective sheet S in the axial center direction, the driving A driven side pulley 41B2 disposed to face the side pulley 41B1 in the width direction and supported so as to be rotatable about an axis center, and these driving side pulleys 41B1 and driven side pulley 41B2 ) is constituted by a conveying conveyor consisting of an endless timing belt 41B3, etc.

Further, a holder 41B4 is fixedly provided on the outer peripheral surface of the upper side of the timing belt 41B3, and the cutting blade 41A is detachably fixed to the timing belt 41B3 via the holder 41B4.

And, by the driving force of the driving motor (not shown), as the driving side pulley 41B1 is rotationally driven in the forward or reverse rotation direction, the timing belt 41B3 moves and The cutting blade 41A is moved in the width direction.

The surface plate 42 is to hold the lower surface of the protective sheet (S) drawn out by the first movable chuck device (31).

As shown in Fig. 1, the surface plate 42 is on the upstream side and downstream of the drawing direction (conveying direction) of the protection sheet S with respect to the cutting position L of the protection sheet S by the cutting blade 41A. It has an upstream side plate (42A) and a downstream side plate (42B) respectively arranged on the side and holding the upstream side and the downstream side on the lower surface of the drawn-out protective sheet (S), respectively.

Here, the 'cutting value (L)' in the present embodiment refers to the protective sheet S drawn out by the first moving chuck device 31 and the cutting blade 41A of the cutting device 41 when moving. It means the position of the intersection line where the trajectories intersect.

[0061] In addition, in the present embodiment, the upstream platen 42A and the downstream platen 42B are configured to be divided from each other, but the present embodiment is not limited thereto.

For example, these upstream side platen 42A and downstream side platen 42B are integrally configured with each other, and in the central part, a long hole allowing the cutting blade 41A to reciprocate along the cutting position L.孔) may be formed.

[0062] The upstream side platen 42A and the downstream side platen 42B are made of a rectangular plate-shaped member made of a resin material such as polyamide resin, for example, in a horizontal state and in the width direction of the protective sheet S. It is installed on the upper surface of the base (2) to extend to.

In addition, the dimension L1 in the longitudinal direction of the upstream plate 42A and the dimension L2 in the longitudinal direction of the downstream plate 42B are both larger than the dimension Lw in the width direction of the protective sheet S. (L1>Lw, L2>Lw), when holding the protective sheet S on the upper surface 42A1 of the upstream platen 42A and the upper surface 42B1 of the downstream platen 42B, the protection It is comprised so that the sheet|seat S may not protrude toward the width direction side of these upstream side platen 42A and downstream side platen 42B.

And, as shown in FIG. 3 (a), the thickness dimension H2 of the downstream platen 42B is set to be smaller than the thickness dimension H1 of the upstream plate 42A (H1) >H2), the upper surface 42B1 of the downstream platen 42B is configured to be located below the upper surface 42A1 of the upstream plate 42A.

The difference between H1 and H2 is preferably 1 mm to 20 mm, more preferably 1 mm to 10 mm, and most preferably 1 mm to 4 mm.

[0064] By having such a configuration, for example, when the protective sheet S is drawn out by the first moving chuck device 31, the end of the protective sheet S on the drawing-out direction (conveying direction) side is in the vertical direction. Even if it is slightly shaken, the end portion is less likely to be bent due to interference with the downstream platen 42B, thereby suppressing the occurrence of defective conveyance and stably withdrawing the protective sheet S.

By the way, as shown in FIG. 1, on the upper surface 42B1 of the downstream side platen 42B, it extends in the drawing direction (transport direction) of the protective sheet S, and in the first moving chuck device 31 A pair of first groove portions 42B2 and 42B2 into which the pair of first moving chucks 31A·31A can enter are formed.

Here, similarly to the second groove portion 42A2 to be described later, the 'groove portion' formed on the upper surface of the surface plate 42 in this embodiment means that the bottom surface of the groove portion does not reach the lower surface of the surface plate 42. In addition, the case where the bottom surface of the groove reaches to the lower side of the lower surface of the surface plate 42 and the surface plate 42 is divided by the formed groove portion (cut-out shape) is also included.

[0066] Specifically, the first groove portion 42B2 is disposed at a position overlapping the trajectory of the first movable chuck 31A in a planar view, and an upstream end face in the conveying direction It is formed so as to pass through the downstream side plate 42B from the downstream end face.

In addition, as shown in Fig. 2, the first groove portion 42B2 is formed to have, for example, a rectangular cross-sectional shape when viewed from the front, and the dimension W1 in the width direction of the first movable chuck ( 31A) is set to be larger than the dimension W2 in the width direction (W1>W2).

Further, in this embodiment, the bottom surface of the first groove portion 42B2 reaches below the lower surface of the downstream surface plate 42B, and the downstream surface plate 42B is divided by the first groove portion 42B2. is made up of

Thus, in this embodiment, the 1st groove part 42B2 into which the 1st moving chuck 31A can enter is formed in the upper surface 42B1 of the downstream platen 42B.

Therefore, as shown in Fig. 4(a), in the protection sheet S just before being pulled out by the first moving chuck device 31, the protection sheet S located at the cutting position L is With respect to the end in the withdrawal direction (conveying direction) side, the first movable chuck 31A can be brought into the first groove portion 42B2 (refer to Fig. 1) to approach the end, and the end is closed by the first movable chuck 31A. It is possible to stably withdraw the protective sheet (S) by being clamped.

As a result, for example, as in the conventional protective sheet cutting device, as the protective sheet (S) is released only by a pair of feeding rollers, it is affected by static electricity or friction, such as in the feeding direction of the protection sheet (S). There are few cases in which the end is bent, and the protective sheet S can be stably taken out by suppressing the occurrence of a conveyance defect.

On the other hand, as shown in FIG. 1, in this embodiment, it extends also in the upper surface 42A1 of the upstream side platen 42A in the drawing direction (conveying direction) of the protective sheet S, and the first moving chuck device A pair of second groove portions 42A2·42A2 into which the pair of first movable chucks 31A·31A in 31 can enter are formed.

In addition, since the shape and arrangement position of the 2nd groove part 42A2 are substantially equivalent to the shape and arrangement position of the 1st groove part 42B2 mentioned above, description of description is abbreviate|omitted.

[0070] By having such a configuration, the first movable chuck 31A penetrates the first groove portion 42B2 and passes through the downstream platen 42B, even after passing through the second groove portion formed in the upstream platen 42A. It penetrates into 42A2 and can further move toward the upstream side of the drawing-out direction (conveying direction) of the protective sheet S.

Therefore, for example, due to an unexpected cause, the end of the protection sheet S on the withdrawal direction (transport direction) side does not reach the predetermined position (ie, the cut position L), and thus the extraction direction (transportation direction) compared to the predetermined position direction), it is possible to pull out the protective sheet S by securely clamping the end of the protective sheet S in the drawing direction (conveying direction) side by the first moving chuck 31A.

[0071] The pressing plate 43 presses the protective sheet S drawn out by the first moving chuck device 31 from above, so that the protective sheet S cannot be withdrawn in the withdrawal direction (transport direction). to see

The pressure plate 43 has an upstream side pressure plate 43A disposed directly above the upstream side platen 42A and a downstream side pressure plate 43B disposed directly above the downstream side platen 42B.

[0072] The upstream side pressing plate 43A and the downstream side pressing plate 43B are made of a rectangular plate-shaped member made of, for example, a resin material such as polyamide resin, in a horizontal state, and in the width direction of the protection sheet S to extend to, and are respectively installed in parallel with the upstream side platen 42A and the downstream side platen 42B described above.

[0073] In addition, the upstream side pressing plate 43A moves up and down (elevating) by an upstream lifting device 44A to be described later, while the downstream pressing plate 43B is moved up and down by a downstream lifting device 44B to be described later. move (elevate).

Specifically, the upstream side pressing plate 43A has an upstream side lower limit position H01 in contact with the upstream side platen 42A; At the same time configured to be movable (elevating) between the spaced upstream upper limit positions H02 (see Fig. 3 (a)), the downstream pressing plate 43B has a downstream lower limit in contact with the downstream platen 42B. position (H03; see Fig. 3 (b)), and the downstream side upper limit position (H04; It is designed to be lifted).

By having such a configuration, with respect to the cutting position (L) of the protective sheet (S) by the cutting blade (41A), the upstream side of the withdrawal direction (conveying travel) the upstream side plate (42A) and the upstream side pressing plate (43A), and the downstream side in the withdrawal direction (transport run) is clamped by the downstream side plate 42B and the downstream side pressing plate 43B, so that the pulled out protective sheet S can be held Therefore, when cutting the protective sheet (S) by moving the cutting blade (41A), it is possible to realize stable cutting.

[0075] The dimension in the longitudinal direction of the upstream side pressing plate 43A is approximately equal to the longitudinal dimension L1 of the upstream side plate 42A, and the lengthwise dimension of the downstream pressing plate 43B is , is substantially equal to the dimension L2 in the longitudinal direction of the downstream platen 42B.

Accordingly, when the protection sheet S drawn out by the upstream side pressing plate 43A and the downstream side pressing plate 43B is pressed from above, the protection sheet S is applied to these upstream side pressing plates 43A and the downstream side. It is clamped by the surface plate 42 and the press plate 43 without protruding to the width direction side of the press plate 43B, and it comes to be hold|maintained reliably.

[0076] By the way, on the lower surface (43A1, see FIG. 3) of the upstream side pressing plate 43A, it extends in the withdrawal direction (conveying direction) of the protection sheet S, and in a state in contact with the upstream side plate 42A, A pair of third groove portions 43A2·43A2 into which the pair of first chucks 31A·31A in the one-moving chuck device 31 can enter are formed.

Here, also with respect to the fourth groove portion 43B2 to be described later, in the present embodiment, the “groove portion” formed on the lower surface of the pressing plate 43 means that the bottom surface of the groove does not reach the upper surface of the pressing plate 43 . Not only the case, but also the case where the bottom surface of the groove part reaches the upper side of the upper surface of the pressing plate 43, and the pressing plate 43 is divided by the formed groove part is included.

[0077] Specifically, the third groove portion 43A2 is disposed at a position overlapping the trajectory of the first moving chuck 31A when viewed from above, and spans from the upstream end face in the conveying direction to the downstream end face, upstream It is formed so that it may penetrate through 43 A of side press plates.

In addition, the third groove portion 43A2 is formed to have, for example, a rectangular cross-sectional shape when viewed from the front, and the width direction thereof is in the width direction in the second groove portion 42A2 of the upstream platen 42A described above. It is set to about the same degree as the dimension of (that is, the dimension W1 in the width direction in the 1st groove part 42B2 of the downstream platen 42B).

Further, in the present embodiment, the bottom surface of the third groove portion 43A2 reaches above the upper surface of the upstream pressing plate 43A, and the upstream pressing plate 43A is divided by the third groove portion 43A2. is made up of

[0078] By having such a configuration, for example, even when the upstream side pressing plate 43A is located at the upstream side lower limit position H01, the first moving chuck 31A passes through the downstream side platen 42B. , without interfering with the upstream side pressing plate 43A, the second groove portion 42A2 of the upstream side plate 42A and the third groove portion 43A2 of the upstream side pressing plate 43A penetrate into the space formed by, Furthermore, it can move toward the upstream of the drawing-out direction (conveying direction) of the protective sheet S.

[0079] Accordingly, in a state where the end of the protective sheet S on the withdrawal direction side is held by the upstream side plate 42A and the upstream side pressing plate 43A, the first moving chuck 31A is moved in the withdrawal direction ( conveyance direction), and after bringing it close enough to the protective sheet S, it can clamp and hold the said edge part reliably.

On the other hand, in this embodiment, the lower surface (43B1, see Fig. 3 (a)) of the downstream side pressing plate 43B also extends in the withdrawal direction (conveying direction) of the protective sheet S, the downstream side platen In a state in contact with 42B, a pair of fourth groove portions 43B2 and 43B2 into which a pair of first movable chucks 31A·31A in the first movable chuck device 31 can enter are formed. have.

In addition, since the shape and arrangement position of the 4th groove part 43B2 are substantially equivalent to the shape and arrangement position of the 3rd groove part 43A2 mentioned above, description is abbreviate|omitted.

[0081] By having such a configuration, for example, the first moving chuck 31A does not wait until the downstream pressing plate 43B located at the downstream lower limit position H03 moves sufficiently toward the downstream upper limit position H04. ) through the first groove portion 42B2 of the downstream side platen 42B and the fourth groove portion 43B2 of the downstream side pressing plate 43B, while avoiding the interference with the downstream side pressing plate 43B, directly downstream side platen 42B ), it is possible to clamp the end of the protective sheet (S) in the drawing direction side.

Accordingly, the time required for a series of operation procedures in the protective sheet cutting device 1 can be shortened, thereby improving productivity.

The lifting device 44 is a device for vertically moving (elevating) the pressing plate 43 .

The lifting device 44 includes an upstream lifting device 44A disposed on the upstream side of the pulling-out direction (conveying direction) of the protective sheet S with respect to the cutting position L, and downstream of the pulling-out direction (conveying direction). It is constituted by a downstream hoisting device 44B or the like disposed on the side.

[0083] Here, the upstream-side lifting device 44A and the downstream-side lifting device 44B in the present embodiment have substantially the same configuration, and therefore, in the following description, the downstream-side lifting device 44B will be mainly described, The description of the upstream-side lifting device 44A is appropriately omitted.

[0084] The downstream lifting device 44B is, for example, as shown in FIG. 2, so as to be movable up and down in the downstream lifting frame 44B1 and the downstream lifting frame 44B1 disposed above the downstream pressing plate 43B. It is composed of a supported downstream movable frame 44B2, a hydraulic/pneumatic cylinder, etc., and is constituted by a pair of downstream actuators 44B3·44B3 and the like that move the downstream lifting frame 44B1 up and down.

In addition, the downstream movable frame 44B2 includes a downstream side fixed mounting member 44B2a for fixing the downstream side pressing plate 43B on the lower surface, and a vertical direction above the downstream side fixed mounting member 44B2a. It is comprised by several downstream guide shaft 44B2b, 44B2b... etc. which are installed upright.

[0085] Here, the downstream movable frame 44B2 is a state in which a plurality of downstream guide shafts 44B2b, 44B2b... are passed through the downstream-side lifting frame 44B1 under the downstream-side lifting frame 44B1. is placed as

In addition, in each of the downstream guide shafts 44B2b, a downstream contact member 44B4 is provided at the tip protruding from the upper surface of the downstream elevation frame 44B1, and at the same time, the lower surface of the downstream elevation frame 44B1; Between the upper surface of the downstream fixing member 44B2a, a downstream biasing member 44B5, which is an example of the first biasing member, made of, for example, a compression coil spring or the like, is substantially coaxial with the downstream guide shaft 44B2b. ) is placed on the

And, with respect to the downstream side lifting frame 44B1, the downstream movable frame 44B2 is always biased downward by the plurality of downstream side biasing members 44B5·44B5... is in a state of being

Thereby, the downstream side pressing plate 43B always holds the downstream side platen 42B with respect to the downstream side lifting frame 44B1 by the plurality of downstream side biasing members 44B5·44B5... via the downstream side movable frame 44B2. will be pushed towards

[0087] In addition, in this embodiment, when the downstream movable frame 44B2 moves downward to a predetermined position with respect to the downstream elevation frame 44B1, the plurality of downstream contact members 44B4, 44B4... It is set so that it may contact|abut against the upper surface of the downstream-side raising/lowering frame 44B1, and it has become a structure which prevents that the downstream movable frame 44B2 falls off from the downstream-side raising/lowering frame 44B1.

[0088] On the other hand, the upstream-side lifting device 44A has a configuration substantially equivalent to that of the downstream-side lifting device 44B described above, and, for example, as shown in FIG. It consists of an upstream-side elevating frame 44A1, an upstream movable frame 44A2 supported so as to be movable up and down by the upstream-side elevating frame 44A1, and a hydraulic/pneumatic cylinder, and the upstream-side elevating frame 44A1 is lifted and moved. The actuator is constituted by a pair of upstream actuators 44A3·44A3 (refer to FIG. 1) and the like.

In addition, these upstream raising/lowering frame 44A1, upstream movable frame 44A2, and upstream actuator 44A3 are downstream-side raising/lowering frame 44B1 and downstream movable frame in the downstream raising/lowering device 44B mentioned above. Since it has substantially the same configuration as that of 44B2 and the downstream actuator 44B3, the description thereof will be omitted.

[0089] Also in the upstream lifting device 44A, with respect to the upstream lifting frame 44A1, the upstream movable frame 44A2 has a plurality of second biasing members (only one is described in FIG. 3 because it is a side view) By the upstream biasing members 44A5·44A5 ... which are an example of

Thereby, the upstream side pressing plate 43A always holds the upstream side surface plate 42A with respect to the upstream side lifting frame 44A1 by the plurality of upstream side biasing members 44A5·44A5... through the upstream side movable frame 44A2. will be pushed towards

[0090] By having such a configuration, the upstream side pressing plate 43A is pressed against the upper surface of the upstream side plate 42A by the biasing force by the upstream side biasing member 44A5, and further, the downstream side biasing member 44B5 ), the downstream pressing plate 43B is pressed against the upper surface of the downstream plate 42B.

That is, these upstream side pressure plates 43A and downstream side pressure plates 43B are always pressed against the upstream side platen 42A and the downstream side platen 42B by a constant biasing force, respectively, and stably the protective sheet (S). can see

[0091] Further, when the upstream side pressure plate 43A and the downstream side pressure plate 43B respectively move toward the upstream side lower limit position H01 and the downstream side lower limit position H03, for example, the upstream side platen 42A ) and the upstream side pressure plate 43A, or between the downstream side platen 42B and the downstream side pressure plate 43B, when an unexpected foreign material exists, these upstream side biasing members 44A5 or downstream side biasing members The member 44B5 functions as an interference means, and it is possible to prevent a defect or the like from occurring in these upstream side pressure plates 43A and downstream side pressure plates 43B, or upstream side platens 42A and downstream side platens 42B. .

[0092] By the way, as shown in Fig. 2, the downstream side pressing plate 43B has a structure divided in the width direction of the protective sheet S, and a plurality of (for example, 5 in this embodiment) pieces of the downstream side plate. (板片) 43b·43b... is configured to be arranged on a straight line toward the width direction.

Further, the downstream movable frame 44B2 is also composed of, for example, a configuration divided into three according to these downstream plate pieces 43b, 43b..., and with respect to the downstream side lifting frame 44B1, each alone It is configured to move up and down.

[0093] On the other hand, the upstream side of the upstream side pressing plate 43A similarly divided in the width direction of the protective sheet S and arranged on a straight line in the width direction (for example, 5 in this embodiment). Upstream movable frame 44A2 made of plate pieces 43a·43a...; see Fig. 1), for example, having a configuration divided into three according to these upstream side plate pieces 43a·43a... ), respectively, with respect to the upstream-side lifting frame 44A1, it is configured to be able to move up and down independently.

[0094] By having such a configuration, for example, in the case of an upstream side pressure plate and a downstream side pressure plate made of an integrally formed elongated member, an equally pressing force in the width direction with respect to the protection sheet S due to its own bending Although it is difficult to apply, in this embodiment, since the upstream side pressing plate 43A and the downstream side pressing plate 43B are each divided in a configuration, the influence due to such bending is small, and the protection sheet S is evenly distributed in the width direction. pressure can be applied.

[0095] (Operation procedure of the protective sheet cutting device (1))

Next, an operation procedure of the protective sheet cutting device 1 in the present embodiment will be described with reference to Figs. 1 and 3 to 5 .

First of all, as shown in FIG. 1, in the lead-out part 3, the pair of movable chucks 31A and 31A in the first movable chuck device 31 are connected to the downstream side plate 42B. It is in the state stopped at the 1st standby position P02 located in the vicinity on the downstream side of a conveyance direction.

Moreover, a pair of 2nd moving chuck 32A*32A in the 2nd moving chuck apparatus 32 is located in the most upstream side of a conveyance direction, and the 1st moving chuck 31A*31A and the 2nd air|standby adjacent to it. It is in a stopped state at the position P21.

[0097] In addition, the pair of the first movable chuck 31A·31A and the second movable chuck 32A·32A are both in an open state and in a stopped state.

In addition, in the pair of first movable chucks 31A·31A, the first clamping portion 31A1·31A1 is moved to the upper limit position by the lifting unit 31A2·31A2 (refer to Fig. 3C) (lifting). It is in a stopped state.

[0098] Furthermore, in the lead-out part 3, the pair of fixed chucks 33A·33A in the fixed chuck device 33 is in a stopped state in an open state.

On the other hand, as shown in Fig. 3 (c), in the cut portion 4, the upstream side pressing plate 43A is stopped at the upstream side lower limit position (H01) close to the upstream side plate (42A). is made of

In addition, the downstream-side pressing plate 43B is in a stopped state at a predetermined downstream-side upper limit position H04 located above the downstream-side platen 42B.

Furthermore, as shown in FIG. 1, 41 A of cutting blades in the cutting device 41 are in a waiting state from one side (right side in a front view) of the width direction.

[0100] And, the protective sheet (S) wound in a roll shape is in a state in which the tip of the drawing-out direction side (conveying direction side) is located on the cutting position (L), the end of the drawing-out direction side (carrying direction side) is, It is in the state pressed and held by the upstream side pressing plate 43A.

[0101] In the protection sheet cutting device 1 in this state, when the protection sheet (S; sheet sheet (S1)) of the sheet already cut is taken out from the protection sheet cutting device 1, The pair of first moving chucks 31A·31A move directly toward the upstream side in the conveying direction.

[0102] The pair of first moving chucks 31A·31A moved to the upstream side in the conveying direction thereafter, as shown in FIG. 4(a), when viewed from above, each of the first moving chucks 31A·31A The distal end of the first clamping portion 31A1 in , and the end of the protective sheet S on the withdrawal direction side (conveying direction side) reaches the first clamping position P01 and stops.

[0103] As shown in FIG. 3(c), the pair of first movable chucks 31A·31A stopped at the first clamping position P01 close the first clamping portion 31A1·31A1 in a closed state. and the end of the protective sheet (S) in the drawing-out direction (conveying direction side) is clamped. In Fig. 3(c), the first movable chuck 31A1·31A1 is located on the opening through which the cutting blade 41A between the upstream platen 42A and the downstream platen 42B enters and exits, but in this form It is not limited. For example, by entering the first movable chuck 31A1·31A1 into the inside of the second groove portion 42A2 of the upstream side platen 42A and the inside of the third groove portion 43A2 of the upstream side pressing plate 43A, the first movable chuck (31A1·31A1) may clamp the end of the protective sheet S on the drawing-out direction side (conveying direction side) from the upstream side platen 42A side.

[0104] As described above, in this embodiment, the upstream pressure plate 43A is located at the upstream lower limit position H01, and the downstream pressure plate 43B is located at the downstream upper limit position H04. In a state in which the end of the protective sheet S on the drawing-out direction (conveying direction) side is pressed by 43A, a pair of first moving chucks 31A·31A clamp the end of the protective sheet S. is composed of

[0105] By having such a configuration, the end of the protective sheet S on the withdrawal direction (conveying direction) side is always pressed and held by the upstream pressing plate 43A, the first movable chuck 31A·31A to be fitted and supported by

Accordingly, the end portion of the protective sheet S in the drawing-out direction can be reliably held by the pair of first moving chucks 31A·31A.

[0106] When the end of the protective sheet S is clamped by the pair of first moving chucks 31A·31A, the upstream pressing plate 43A moves directly upward (rising), and in FIG. 3 ( As shown in a), it reaches a predetermined upstream-side upper limit position H02 positioned above the upstream-side platen 42A and stops.

[0107] Further, with the rise of the upstream side pressing plate 43A, the pair of first moving chucks 31A·31A moves toward the downstream side in the conveying direction, and as shown in FIG. 4(b), a predetermined value When the first intermediate stop position (P03) is reached, it stops once.

Accordingly, the protective sheet S is drawn out by a predetermined length toward the drawing-out direction side (conveying direction side) by the pair of first moving chucks 31A·31A.

[0108] When the pair of first moving chucks 31A·31A stop at the first intermediate stop position P03, the upstream side pressing plate 43A moves downward again (falls down), as shown in FIG. 3(b) As shown in , it reaches the upstream lower limit position (H01) and stops.

Further, together with the upstream pressure plate 43A, the downstream pressure plate 43B also descends at the same time to reach the downstream lower limit position H03 close to the downstream plate 42B and stop.

Thereby, the protective sheet S is pressed and held by the upstream pressure plate 43A and the downstream pressure plate 43B on the upstream and downstream sides of the conveying direction with respect to the cutting position (L, see FIG. 1), respectively. becomes

[0109] When the upstream side pressing plate 43A stops at the upstream side lower limit position H01, and the downstream side pressing plate 43B stops at the downstream side lower limit position H03, the cutting blade 41A is the other side in the width direction It moves toward the side (left when viewed from the front).

And as shown in FIG.4(b), when 41A of cutting blades pass through the protective sheet S and reach|attain a predetermined position in the other side of the width direction, it will stop.

Accordingly, the protective sheet (S) is cut in the width direction by the cutting blade (41A) at the cutting position (L).

[0110] When the cutting blade 41A is stopped at a predetermined position on the other side in the width direction, the pair of second moving chucks 32A·32A is, as shown in FIG. 4(c), the second clamping part ( 32A1·32A1) is operated in a closed state, and both ends of the cut sheet S1 in the width direction are clamped. In addition, you may perform 2nd moving chuck|zipper 32A*32A substantially simultaneously with holding|maintenance of the protection sheet S by the upstream side pressure plate 43A and the downstream side pressure plate 43B which were mentioned above.

[0111] When both ends in the width direction of the sheet S1 are clamped by the pair of second moving chucks 32A·32A, the downstream side pressing plate 43B rises, and the downstream side upper limit position (H04) reached and stopped.

On the other hand, the upstream side pressing plate 43A maintains a stopped state at the upstream side lower limit position H01 (see Fig. 3(c)).

[0112] Further, with the rise of the downstream side pressing plate 43B, the pair of first moving chucks 31A·31A and second moving chucks 32A·32A are synchronized with each other toward the downstream side in the conveying direction. Move.

[0113] Then, as shown in Fig. 5(a), the pair of first moving chucks 31A·31A reach the predetermined first conveyance stop position P04, and the pair of second movement chucks When the chuck 32A·32A reaches the predetermined second conveyance stop position P22, the pair of first moving chuck 31A·31A and the second moving chuck 32A·32A stops once again.

In this way, the sheet S1 is cut by the pair of first moving chucks 31A·31A and the second moving chucks 32A·32A, the cutting section S01 at the position immediately after being cut, in Fig. 4(b). ) from), it is conveyed to the carrying out section S02 where the carrying out operation from the protective sheet cutting device 1 is performed.

[0114] A pair of first moving chucks 31A·31A stops at the first conveying stop position P04, and the pair of second moving chucks 32A·32A stops at the second conveying stop position P22. When stopped at , the pair of fixed chucks 33A·33A move the third clamping portions 33A1·33A1 in a closed state to clamp both ends of the sheet S1 in the width direction.

[0115] When both ends of the sheet S1 in the width direction are clamped by the pair of fixed chucks 33A·33A, the pair of first movable chucks 31A·31A is formed with the first clamping portion ( 31A1·31A1) is operated in the open state, and the end of the single-wafer sheet S1 in the drawing-out direction (conveying direction side) is opened.

Thereafter, the pair of first moving chucks 31A·31A moves toward the downstream side in the conveying direction again, and as shown in FIG. 5B , in each of the first moving chucks 31A·31A, The distal end of the first clamping portion 31A1 and the distal end of the sheet S1 in the withdrawal direction (conveying direction side) reach the first retracted position P05 in which they are spaced apart and stop.

[0116] The pair of first movable chucks 31A·31A stopped at the first retracted position P05 is a first clamping portion ( 31A1·31A1) is immediately lowered to the lower limit position.

[0117] And, when the first clamping portion 31A1·31A1 reaches the lower limit position and stops, the pair of first moving chucks 31A·31A passes under the sheet S1 and upstream in the conveying direction. move towards the side

Thereafter, as shown in Fig. 5C, the pair of first moving chucks 31A·31A again reach the first standby position P02 and stop.

[0118] As described above, in the present embodiment, the sheet S1 cut by the cutting blade 41A of the cutting part 4 is a pair of first moving chucks 31A·31A installed in the lead-out part 3 ) and the second moving chucks 32A·32A, it is configured to be conveyed to a predetermined stop position (namely, discharging section S02) located on the downstream side in the withdrawing direction (conveying direction).

Then, the lead-out unit 3 includes a pair of fixed chucks 33A·33A for clamping both ends of the sheet S1 in the width direction after the cut sheet S1 reaches the discharging section S02. ), and after the pair of fixed chucks (33A·33A) clamp the sheet S1, the pair of first movable chucks (31A·31A) are cut sheet sheet (S1) It has a configuration in which the end portion on the drawing-out direction (conveying direction) side is opened, and it slides through the lower side of the sheet S1 to the cut portion 4 side (ie, the upstream side in the conveying direction).

[0119] By having this configuration, without waiting for the cut sheet S1 to be taken out from the protective sheet cutting device 1, at the point when the sheet S1 reaches the discharging section S02, immediately Since the pair of first moving chucks 31A·31A can be returned to the first standby position P02, the time required for a series of operation procedures in the protective sheet cutting device 1 is shortened, and the production efficiency is increased. improvement can be achieved.

[0120] The pair of first movable chucks 31A·31A stopped at the first standby position P02 directly move the first clamping portion 31A1·31A1 to the upper limit position by the elevating portion 31A2·31A2. rise to

[0121] On the other hand, when the pair of first moving chucks 31A·31A stops at the first standby position P02, the pair of second moving chucks 32A·32A, the second clamping part 32A1· 32A1) is moved in an open state to open both ends of the sheet S1 in the width direction.

Moreover, at the same time, the pair of fixed chucks 33A·33A moves the third clamping portions 33A1·33A1 in an open state to open both ends of the sheet S1 in the width direction.

[0122] And, when the sheet S1 is taken out from the protective sheet cutting device 1 by a loading device (not shown), the second moving chuck 32A moves straight upstream in the conveying direction. Thus, as shown in FIG. 1, it again reaches the second standby position P21 and stops.

Accordingly, the operation procedure of the protective sheet cutting device 1 is once ended, and when the sheet S1 is newly manufactured, the above operation procedure is repeated again.

1 Protective sheet cutting device
3 draw-out
4 cut
31A first moving chuck (first chuck)
31B 1st slide mechanism (slide mechanism)
33A Fixed Chuck (2nd Chuck)
41A cutting blade
42
42A Upstream Surface Plate
42A1 top view
42A2 second groove
42B downstream platen
42B1 top view
42B2 first groove
43A Upstream side pressure plate
If 43A1
43A2 3rd groove
43B Downstream side pressure plate
If 43B1
43B2 4th groove
44A5 Upstream bias member (second bias member)
44B5 downstream bias member (first bias member)
100 Glass substrate laminated package
G glass substrate
H01 Upstream side lower limit position
H02 Upstream side upper limit position
H03 downstream low limit position
H04 downstream upper limit position
L cutting position
S protection sheet
S1 sheet sheet
S02 export section

Claims (11)

A protective sheet cutting device for cutting the protective sheet in a width direction orthogonal to the longitudinal direction after withdrawing the strip-shaped protective sheet in the longitudinal direction,
a draw-out part for drawing out the protective sheet;
and a cutting part for cutting the protective sheet drawn out by the lead-out part;
The withdrawal unit,
A first chuck for clamping an end of the protective sheet in the withdrawal direction;
and a slide mechanism for slidingly moving the first chuck in a drawing direction;
The cut part,
A cutting blade for cutting the protective sheet,
With respect to the cutting position of the protective sheet by the cutting blade, the upstream side and the downstream side in the pull-out direction, the surface plate having an upstream side surface plate and a downstream side surface plate for holding the lower surface of the protection sheet, respectively has,
A first groove extending in the withdrawal direction and into which the first chuck can enter is formed on the upper surface of the downstream platen.
Protective sheet cutting device, characterized in that. According to claim 1,
In the cut part,
On the upper surface of the upstream platen, a second groove extending in the withdrawal direction and into which the first chuck can enter is formed.
Protective sheet cutting device, characterized in that. 3. The method of claim 1 or 2,
The cut part,
An upstream-side pressure plate disposed directly above the upstream-side platen and capable of moving between an upstream-side lower limit position in contact with the upstream-side platen and an upstream-side upper limit position spaced apart from the upstream-side platen. class,
It is disposed directly above the downstream platen and further includes a downstream pressing plate capable of moving between a lower limit position on the downstream side in contact with the downstream platen and an upper limit position on the downstream side that is spaced apart from the downstream platen.
Protective sheet cutting device, characterized in that. 4. The method of claim 3,
In the cut part,
On the lower surface of the upstream pressure plate,
a third groove extending in the withdrawal direction and into which the first chuck can enter while in contact with the upstream platen is formed;
Protective sheet cutting device, characterized in that. 5. The method according to claim 3 or 4,
In the cut part,
On the lower surface of the downstream pressing plate,
a fourth groove extending in the withdrawal direction and into which the first chuck can enter while in contact with the downstream platen is formed;
Protective sheet cutting device, characterized in that. 6. The method according to any one of claims 3 to 5,
In a state in which the upstream side pressing plate is located at the upstream lower limit position, and the downstream side pressing plate is located at the downstream upper limit position, the end of the protective sheet in the withdrawal direction is pressed by the upstream side pressing plate,
The first chuck is configured to clamp and support the end of the protective sheet.
Protective sheet cutting device, characterized in that. 7. The method according to any one of claims 3 to 6,
The cut part,
a first biasing member for biasing the downstream-side pressing plate toward the downstream-side platen;
and a second biasing member for biasing the upstream-side pressing plate toward the upstream-side platen.
Protective sheet cutting device, characterized in that. 8. The method according to any one of claims 3 to 7,
The upstream side pressing plate and the downstream side pressing plate,
consisting of a configuration divided in the width direction of the protective sheet
Protective sheet cutting device, characterized in that. 9. The method according to any one of claims 1 to 8,
The surface plate is composed of separate members as the upstream surface plate and the downstream surface plate,
The upper surface of the downstream platen is located below the upper surface of the upstream platen.
Protective sheet cutting device, characterized in that. 10. The method according to any one of claims 1 to 9,
The protective sheet cut by the cutting unit is conveyed by the withdrawing unit to a predetermined stop position located on the downstream side in the withdrawing direction,
The withdrawal unit,
After the cut protective sheet reaches the stop position, it further includes a second chuck for clamping both ends of the protective sheet in the width direction,
After the second chuck clamps and supports the protective sheet,
The first chuck is
Open the cut-out end of the protective sheet,
It slides through the lower part of the protective sheet and moves toward the cut part.
Protective sheet cutting device, characterized in that. A protective sheet cut by the protective sheet cutting device according to any one of claims 1 to 10 and a glass substrate are alternately stacked and packed.
A method of manufacturing a glass substrate laminated package, characterized in that.

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