JP3157651B2 - Sheet material removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material take-out device for sucking and taking out stacked sheet materials one by one from the uppermost layer.

[0002]

2. Description of the Related Art A photosensitive lithographic printing plate to be mounted on a rotary press or the like to produce a printed matter such as a newspaper is developed after an image is recorded by an image recording apparatus such as a plate printing machine. Generally, a photosensitive lithographic printing plate has a thickness of about 0.24 to
0.3mm aluminum rectangular thin plate (eg width x
In some cases, a support having a length of 1313 mm × 1060 mm) is used, and a photosensitive film is formed on the surface of the support to have a thickness of about 0.24 mm to 0.3 mm.

A large number (for example, 500 to 1000) of such photosensitive lithographic printing plates are stacked on a printing plate mounting table, packed and supplied from a printing plate manufacturing company. When supplying the lithographic printing plates one by one to an image recording apparatus such as a printing plate machine, the printing plates are sucked from the printing plate mounting table by a suction cup or the like.

[0004] Since the photosensitive lithographic printing plates stacked on the printing plate mounting table are in close contact with each other, when the top photosensitive lithographic printing plate is lifted, several photosensitive lithographic printing plates are required. The printing plate may be lifted at once. While pressing the center of one end of the photosensitive lithographic printing plate with a pressing member, in order to prevent such a plurality of photosensitive lithographic printing plates from being simultaneously attracted and to release the sheets one by one,
There is a suction device that sucks and lifts both ends with a suction cup. By lifting the uppermost photosensitive lithographic printing plate in this way, the next photosensitive lithographic printing plate of the uppermost photosensitive lithographic printing plate is gradually moved from the edge by the rigidity thereof from the uppermost photosensitive lithographic printing plate. It is separated so that only the uppermost photosensitive lithographic printing plate is adsorbed. Also, in order to speed up the separation of the top photosensitive lithographic printing plate from the next photosensitive lithographic printing plate, the top photosensitive lithographic printing plate and the next photosensitive lithographic printing plate can be separated from the lifted edge. For example, a method of supplying air to the air is used.

By the way, in order to smoothly carry out the sheet-feeding operation of a large number of photosensitive lithographic printing plates, when the remaining amount of the photosensitive lithographic printing plates becomes low, the next printing plate mounting table is prepared and the timing is measured. Need to be replaced. In addition, in order to quickly perform the sheet-feeding operation of the photosensitive lithographic printing plate, the suction cup is made to approach the surface of the printing plate mounting table at a relatively high speed, and the remaining amount detecting means removes the photosensitive lithographic printing plate of the uppermost layer. After the detection, the approach speed of the suction cup is slowed so that the suction cup slowly comes into contact with the surface of the photosensitive lithographic printing plate.

If the suction operation is performed without noticing that the photosensitive lithographic printing plate has disappeared on the printing plate mounting table, the suction device may be damaged. For this reason, use of a photosensitive lithographic printing plate having a function of detecting in advance that the remaining amount of the photosensitive lithographic printing plate has become low has been studied.

[0007]

However, simply detecting the remaining amount of the photosensitive lithographic printing plate may not be able to reliably prevent damage to the apparatus and unnecessary suction operation. May not be able to be taken out smoothly. For example, the suction cup does not approach the surface of the photosensitive lithographic printing plate in a normal state, and the photosensitive lithographic printing plate is absorbed by only some of the suction cups. It may collide with the surface of the printing plate, damaging the surface of the photosensitive lithographic printing plate or damaging the suction cup or the member supporting the suction cup.

The present invention has been made in view of the above-mentioned facts, and has as its object to provide a sheet material take-out device capable of preventing the device and the sheet material from being damaged and smoothly taking out the sheet material. And

[0009]

According to a first aspect of the present invention, there is provided a sheet material take-out apparatus for taking out a sheet material by sucking and holding the sheet material sequentially from the uppermost layer of the sheet materials stacked on a mounting table by a suction cup. An apparatus, wherein the suction cup is attached to the suction cup supporting section to move toward the uppermost sheet material when sucking the sheet material and contact the suction cup with the uppermost sheet material; and A first detection means provided for detecting the surface of the uppermost sheet material before the suction cup comes into contact with the uppermost sheet material; and a predetermined detection means provided on the suction cup supporter and provided by the first detection means. A second detecting means protruding in the direction of the mounting table, wherein the second detecting means detects the surface of the mounting table before the first detecting means detects the surface of the uppermost sheet material. Described above when detected Number of the laminated sheet material on the table is characterized in that a notifying means for notifying that falls below a predetermined number.

According to a second aspect of the present invention, there is provided the sheet material removing apparatus according to the first aspect, wherein the suction cup supporting portion is spaced apart from the surface of the mounting table before the first detecting means. A third detecting unit provided when the third detecting unit detects the surface of the uppermost sheet material before the first detecting unit detects the surface of the uppermost sheet material. And control means for stopping the movement of the suction cup support.

According to a third aspect of the present invention, there is provided the sheet material removing apparatus according to the first aspect, wherein the suction cup supporting portion is spaced apart from the surface of the mounting table before the first detecting means. A third detection unit provided, and the suction cup supporting unit when the third detection unit detects the surface of the uppermost sheet material before the second detection unit detects the surface of the mounting table. And control means for stopping the movement.

According to a fourth aspect of the present invention, there is provided the sheet material removing apparatus according to the first aspect, wherein the negative pressure applying means for applying a negative pressure to the suction cup and the negative pressure applying means. Negative pressure detecting means for detecting the applied negative pressure, third detecting means provided on the suction cup supporting portion and provided farther from the mounting table surface than the first detecting means,
When the third detecting means detects the uppermost sheet material before the negative pressure detecting means detects that the suction cup has sucked the uppermost sheet material, the movement of the sucker supporting portion is stopped. And control means.

According to a fifth aspect of the present invention, there is provided a sheet material removing apparatus according to any one of the first to fourth aspects, wherein the first, second and third detecting means are air. A cylinder and a pressing member attached to the tip of a drive shaft of an air cylinder, wherein the pressing member is moved by the suction cup supporting portion toward the mounting table surface so that the pressing member causes the mounting table surface or the uppermost layer sheet to move. It comes into contact with the surface of the material.

[0014]

In the sheet material take-out device according to the first aspect of the present invention, first suction means for detecting the uppermost sheet material is provided on the suction cup supporting portion which supports the suction cup and approaches the uppermost sheet material. Second detecting means for detecting the surface of the mounting table.

When the first detecting means detects the sheet material before the second detecting means when the suction cup approaches the uppermost sheet material on the mounting table, the remaining amount of the sheet material is equal to or more than a predetermined amount. It can be determined that there is. Further, when the second detecting means detects the mounting table before the first detecting means detects the sheet material, it can be determined that the remaining amount of the sheet material is insufficient or missing. .

The state in which the remaining amount of the sheet material on the mounting table is insufficient is notified by the notifying means, whereby, for example, a mounting table on which a new sheet material is mounted is prepared and timely. It can be replaced, and the work of taking out the sheet material can be performed smoothly.

In the sheet material take-out device according to the second aspect, the third detecting means is attached to the suction cup supporting portion at a distance from the uppermost sheet material relative to the first detecting means. This third
If the detecting means is arranged so as to always face the sheet material regardless of the size of the sheet material on the mounting table, and the first detecting means is opposed to a predetermined position according to the size of the sheet material, When the size of the sheet material stacked on the mounting table is different from, for example, the size of the sheet material that the sucker is trying to attract, for example, when the size is smaller, the third detection unit determines that the size is incorrect because the sheet material is detected. Can be.

[0018] In the sheet material take-out device according to the third aspect, the third detecting means detects when the sucker supporting portion approaches the sheet material while being inclined from a predetermined state.

As described above, when the third detecting means, which does not detect the sheet material in a normal state, detects the sheet material, the control means stops the movement of the suction cup supporting portion. In addition, it is possible to prevent the sucker from adsorbing on the surface of the mounting table, and prevent the sucker and the suction cup supporting portion from being damaged by colliding with the surface of the mounting table or the sheet material.

In the sheet removing device according to the fourth aspect, for example, when the suction cup supporting portion approaches the sheet in a predetermined state, the first detecting means detects the sheet and activates the negative pressure applying means to operate the sheet. The material is absorbed by the suction cup. At this time, the negative pressure detecting means detects whether or not the sucker has reliably adsorbed the sheet material.

If the sucker is in contact with and adsorbed on the sheet material and cannot detect it reliably,
The sucker support moves further toward the sheet material. At this time, the sheet material is detected by the third detecting means, and the suction cup supporting portion is prevented from moving toward the sheet material. Thus, it is possible to prevent the sucker from forcibly pressing the sheet material, thereby damaging the sheet material and damaging the sucker.

According to a fifth aspect of the present invention, an air cylinder having a pressing member provided at the tip of a driving shaft is used as a detecting means, and the pressing member comes into contact with a mounting table or a sheet material to drive the driving shaft. The detection means works by the mechanical action of pushing back. That is, since the detection position of the sheet material or the mounting table of each detection means can be visually confirmed, setting of the detection position is extremely easy.

[0023]

FIG. 1 shows an automatic punching apparatus 10 applied as an embodiment of the present invention. The auto-punching apparatus 10 is used to prepare a printing plate used in a rotary press, and to prepare a photosensitive lithographic printing plate that has not been exposed (hereinafter referred to as “P”).
And a punch hole serving as a reference for performing processing with a printing plate machine or the like and a reference for performing plate bending for winding the developed PS plate 12 around a plate cylinder of a rotary press. Are punched by the punch device 240. PS in which punch holes are formed by the automatic punching device 10
The printing plate 12 is subjected to exposure according to an image recorded on a document film or the like by a printing device such as a printing machine, and then developed to be a printing plate used for a rotary press or the like.

The automatic punching apparatus 10 includes a skid loading section 16 for loading a plurality of printing plate mounting tables (hereinafter referred to as "skids") 14 in which a large number (for example, 500 to 1000) of PS plates 12 are stacked. ing.

FIGS. 2 and 3 show an example of the skid 14. A back plate 22 and a support plate 24 are disposed on the skid 14 above the base 18 while being supported by support members 26 and 28 and columns 30. The back plate 22 is inclined (approximately 15 ° in this embodiment) with respect to the vertical direction.
The printing plate 12 is stacked with the plate 12 leaning against the back plate 22 with the lower end supported on the support plate 24. At this time, P
The S plate 12 has a skid 14 regardless of the number of layers and size.
For example, the PS plate 12 is adjusted so that the center of gravity of the
The center position along the width direction is aligned with the center position of the back plate 22 in the width direction.

The PS plate 12 laminated on the skid 14
The photosensitive surface faces the back plate 22 side, and a backing sheet 3 for protecting the plate surface is provided between the back plate 22 and the lowermost PS plate 12.
3 is interposed, but no interleaving paper is interposed between the stacked PS plates 12, so that it is not necessary to remove the interleaving paper when removing the PS plates 12 one by one. The skid 14 can be stored or the like in a state where a pair of legs 20 provided at a lower portion of the base 18 is in contact with the floor surface. For example, a fork 40 of a forklift is inserted between the legs 20. It is possible to apply a device that can be inserted to lift and move the base 18. The skid 14 and PS
The plate 12 is such that a top plate 35 is disposed on the upper surface of the uppermost PS plate 12 so that the PS plate 12 is packed so as not to be damaged, and can be wrapped with moisture absorbing paper or the like as needed during storage. .

As shown in FIG. 1, the skid loading section 1
6 is provided with a long stage 42 fixed to the floor surface. The stage 42 is in the width direction (the direction of the arrow W in FIG. 1).
A plurality of (e.g., eight locations in this embodiment) loading ports 44 cut out in a substantially rectangular shape from one end side are formed along the longitudinal direction (the direction of arrow H in FIG. 1), and the skids 14 are loaded into each of them. .

As shown in FIG. 4 and FIG.
4 is widened on the opening side to form a guide surface 58 on the upright wall, and the skid 14 is guided along the guide surface 58 and the side wall 60 adjacent to the guide surface 58 to a position short of the back wall 62. Note that ball casters 64 are provided near the side walls 60 on both sides, and the skid 14 does not tilt instablely due to the contact of the leg portions 20 of the skid 14, and smoothly moves to the inner wall 62. You will be guided.

As shown in FIG. 5, near the back wall 62 of the loading port 44, a shock absorbing plate 68 and a shock absorber 7 are provided.
A stopper 66 constituted by the zero and the guide rod 72 is arranged. The guide rods 72 are arranged in pairs on both sides of the shock absorber 70, one end of each of the guide rods 72 is connected to the buffer plate 68, and the intermediate portion is inserted into and supported by a slide bearing 72 A attached to the frame 42 A of the stage 42. The shock absorber 70 is connected to the buffer plate 68 between the pair. For this reason, the back wall 6
The skid 14 inserted just before the second
And is guided gently and parallel to a predetermined position near the back wall 62 by the shock absorber 70 and stopped.

On the floor inside the loading port 44 of the stage 42,
Ball casters 74 and 76 for positioning the skid 14 are provided near the back wall 62 and on the opening side. As shown in FIG. 5 and FIG.
4 and 76, a steel ball 78A is rotatably accommodated in a bracket 78, and a steel ball 78A is provided.
A part of the outer peripheral portion of A protrudes from the bracket 78.

On the other hand, as shown in FIGS. 3 and 6, blocks 80 and 82 facing the ball casters 74 and 76 are mounted on the lower surface of the base 18 on the skid 14. One of the blocks 80 has a substantially conical concave portion 80A having a lower opening, and is disposed at one end of the skid 14 in the width direction (arrow W direction) at a substantially central portion in the vertical direction (arrow H direction). ing. Also, the other block 82
Is open at the bottom and the extension of the top 82B is
The recess 82A is formed with a triangular groove 82A directed toward the center of the skid 14, and is provided at the other end of the skid 14 in the width direction at a substantially central portion in the vertical direction.

The skid 14 stopped at a predetermined position in the vicinity of the back wall 62 of the loading port 44 corresponds to a ball caster 74 to a block 80 and a ball caster 76 to a block 82, and when the skid 14 is lowered, In the recess 80A of the block 80 and the triangular groove 82A of the block 82,
Steel balls 7 of ball casters 74 and 76 respectively
8A is accommodated and comes into contact with the inclined surface. At this time, the weight of the skid 14 causes the steel ball 78A of the ball caster 74 to relatively move to the center position along the inclination of the concave portion 80A. Further, the steel ball 78A of the ball caster 76 relatively moves to a position facing the top portion 82B along the inclination of the triangular groove 82A of the block 82. As a result, the skid 14 is positioned and held at a predetermined position of the loading port 44, and the PS plates 12 stacked at the predetermined position of the skid 14 are positioned at the predetermined position of the skid loading unit 16. I have.

As shown in FIG. 1, the skid loading section 1
The rail 100 is disposed adjacent to the rail 6. The rail 100 is provided along the longitudinal direction (the H direction in the drawing) of the stage 42 of the skid loading unit 16, and includes a moving / transferring device 110 including a sheet material removing device to which the present invention is applied.
Is arranged.

As shown in FIG. 7, the rail 100 has a substantially rectangular cross section and a hollow inside.
A gantry 102 fixed to the floor is provided along the base, and a rail base 106 projecting outward from both ends in the width direction is fixed to the upper surface of the gantry 102 along the longitudinal direction of the gantry 102. A guide rail 104 is provided on the lower surface of the rail base 106.
A rack gear 108 is provided on the upper surface of the gantry 102 during the period 06 along the longitudinal direction of the gantry 102.

Above the gantry 102, a moving transfer device 110 is disposed. The moving transfer device 110 includes a substantially rectangular planographic moving base 11 facing the upper surface of the gantry 102.
A frame 122 having a substantially trapezoidal side surface is provided on the upper surface of the movable base 112 (see FIG. 8). A drive shaft 114 </ b> A penetrates the movable base 112 and protrudes downward from the movable base 112.
4 is attached to the drive shaft 1 of the servomotor 114.
A pinion gear 116 that meshes with the rack gear 108 described above is disposed at the tip of 14A.

Further, the gantry 102 is
A plurality of pairs of legs 118 having a substantially U-shaped cross section are provided on the lower surface of both end portions along the width direction of. The distal ends of these legs 118 extend below the guide rails 104 and are slidably engaged with the guide rails 104.
The movable transfer device 110 is supported by the gantry 102 by the engagement between the slider 120 and the guide rail 104, and the servo motor 114
With the relative movement of the meshing position between the pinion gear 116 and the rack gear 108 by the driving of the rack 102, the rack 102 can be moved in the longitudinal direction.

The moving / transferring device 110 takes one end of the rail 100 (shown in FIG. 1) as an original position and moves from this original position to a predetermined position corresponding to each loading port 44 by the number of pulses for driving the servomotor 114. Moving and rail 1
00 to a standby position on the other end side.
In this standby position, the PS plate 12 sucked and taken out from the skid 14 at a predetermined position corresponding to the loading port 44 is transferred to a fixed transfer device 210 described later. A control panel 50 for controlling the operation of the automatic punching device 10 is provided near the original position of the moving transfer device 110.

As shown in FIG. 7, the mobile transfer device 11
0 frame 122 has a pair of pillars 122A vertically erected on the movable base 112.
A is the surface side of the uppermost PS plate 12 when the moving transfer device 110 sucks the PS plate 12 loaded in the skid loading section 16.

The pair of columns 122A are provided with guide rails 104 along the vertical direction.
Between A, a ball screw 128 whose one end in the axial direction is rotatably supported by a bracket 126 provided on the upper portion of the frame 122 is arranged in parallel with the guide rail 124.

As shown in FIG. 8, the lower end of the ball screw 128 is connected to the drive shaft of a servo motor 130 attached to the lower part of the frame 122.
It is designed to rotate by the drive of 30. A moving bracket 132 in which a nut (not shown) is screwed to the ball screw 128 is provided at an intermediate portion of the ball screw 128. Direction).

A rectangular support base 134 is laid over the guide rail 124 of the pair of columns 122A.
The support base 134 is engaged with the frame 122 via sliders 136 slidably engaged with the guide rails 124 at upper and lower portions, respectively.
32 are attached. Therefore, the servo motor 13
When the ball screw 128 is rotated by the zero drive, the support base 134 moves up and down along the guide rail 124 together with the moving bracket 132. As for the vertical movement of the support base 134, the position moved to the uppermost position is the original position, the size of the PS plate 12 for adsorbing the PS plate 12 described later from this original position, and the PS plate stacked on the skid 14. It is controlled to move downward to a height corresponding to the number of twelve. As shown in FIG. 7, proximity switches 194 are vertically arranged on one of the pillars 122A so as to detect an original position where the support base 134 has moved upward and a movement limit position where the support base 134 has moved downward. Has become.

As shown in FIG. 8, on a side of the support base 134 opposite to the frame 122, an arm 140 assembled in a long rectangular shape is provided. The arm 140 is disposed along a direction in which the longitudinal direction is orthogonal to the longitudinal direction of the rail 100. A guide rail 144 is attached to an upper end and a lower end of the arm 140 along the longitudinal direction. I have. A rodless cylinder 142 is attached to the arm 140 between the guide rails 144 so that the driving direction is the longitudinal direction of the arm 140.

On the other hand, a slider 146 slidably engaged with the guide rail 144 is attached to the support base 134, and a drive block 142A of the rodless cylinder 142 is connected via a bracket 138. With these, the arm 140 is connected to the support base 1.
34. Accordingly, the arm 140 moves relative to the support base 134 along the longitudinal direction of the guide rail 144 by driving the rodless cylinder 142.

The arm 140 has a support base 13.
Guide rails 152 are disposed on the upper and lower sides opposite to the side 4, and a rodless cylinder 148 is disposed between the guide rails 152. The guide rail 152 and the rodless cylinder 152 are attached so that the longitudinal direction is along the longitudinal direction of the arm 140. A substantially rectangular support frame 150 is connected to the guide rail 152 and the drive block 148A of the rodless cylinder 148.

The guide rail 1 is mounted on the support frame 150.
A slider 154 slidably engaged with the slider 52 is attached to the slider 154, and is supported by the arm 140 via a guide rail 152 from the slider 154. Also, the support frame 15
0 is the drive block 148 of the rodless cylinder 148
The support frame 150 is relatively moved along the longitudinal direction of the arm 140 by driving the rodless cylinder 148.

The rodless cylinders 142 and 148 attached to the arm 140 are controlled so as to simultaneously drive the support frame 150 so as to move in the same direction, and the position where the support frame 150 is most accommodated is the original position. The support frame 150 faces the surface of the PS plate 12 mounted on the skid 14 with the support frame 150 protruding from the original position toward the loading port 44 of the skid loading section 16.

As shown in FIG. 9, the support frame 15
0 on the side opposite to the arm 140,
0 is provided. The support frame 150 and the suction cup support frame 160 are rotatably connected to each other via a bracket 162 at a plurality of lower portions. The air cylinder 156 is attached to the support frame 150. In the air cylinder 156, the drive shaft 156A is directed substantially upward, and the drive shaft 156
The tip of A is rotatably connected to an intermediate portion of a connection bar 158 that is rotatably hung between a pair of brackets 164 that are rotatably attached to the suction cup support frame 160 at both ends. .

In the original position where the drive shaft 156A of the air cylinder 156 is contracted,
Although it is substantially parallel to the support frame 150, the bracket 164 at the lower end of the support frame 150 is extended by the drive shaft 156 </ b> A of the air cylinder 156 extending.
, And the upper portion is separated from the support frame 150 to be in an inclined state. This inclined state is parallel to the back plate 22 of the skid 14 loaded into each loading port 44 of the skid loading section 16 and the surface of the PS plate 12.

A suction cup 168 is provided at the center of the suction cup supporting frame 160 at the center thereof.
70 are provided, and two suction cups 172 are arranged outside the suction cups 170, respectively. Each suction cup 168, 170,
172 is the guide rod 1 via the suction cup supporting member 174.
PS attached to the tip of 76 and mounted on skid 14
It faces the plate 12. Each guide rod 1
76 is supported by a suction cup support frame 160 via a slide bearing (not shown), and each suction cup 168, 170, 17
2 is provided on the suction cup support frame 160 so as to protrude on the opposite side to the support frame 150.

The suction cup supporting member 174 of the guide rod 176
Near the connecting members 180A, 182 attached to the tips of the drive shafts of the air cylinders 180, 182, 184
A, 184A are connected. Therefore, the suction cylinder 16 is driven by the driving of the air cylinders 180, 182, 184.
8, 170, 172 move in the direction in which the uppermost layer of the opposing skid 14 comes into contact with and separates from the surface of the PS plate 12.

Under the suction cup supporting frame 160, a plurality of suction cups 1 are arranged in parallel with the rows of the suction cups 168, 170, 172.
Reference numerals 92 are oriented in the same direction as the suction cups 168 to 172, and are disposed at substantially equal intervals (in the present embodiment, six are provided as an example). Each suction cup 192 is connected to the air cylinder 1 attached to the suction cup support frame 160.
86 is connected to the distal end of a drive shaft that penetrates the support sucker support frame 160 from the support frame 160 and protrudes to the opposite side to the support frame 150, and is driven by an air cylinder 186 to move toward and away from the PS plate 12 on the skid 14. To move to. The suction cup 192 at the center is not directly connected to the drive shaft of the air cylinder 186, but is attached to the tip of a guide rod 190 slidably supported by the suction cup support frame 160 via a slide bearing 188. The guide rod 190 is connected to the air cylinder 18.
6, the suction cup 192 is moved in the same manner as the other suction cups 192.

The moving transfer device 110 is provided with the above-described loading port 4.
In a state where the suction cup supporting frame 160 is stopped at a predetermined position with respect to the PS plate 12 and faces the uppermost PS plate 12 on the skid 14, by driving the air cylinder 156,
The suction cup supporting frame 160 is inclined along the inclination of the PS plate 12. Thereafter, the movable base 112 is moved by the driving of the servo motors 114 and 130, and the sucker support frame 1 is moved.
60 is brought close to the uppermost PS plate 12, and suction cups 168, 1
The back surface of the PS plate 12 is sucked by 70, 172, and 192. In addition, the suction cup support frame 160
When approaching the PS plate 12, the servo motor 114 is driven to approach the PS plate 12 of the uppermost layer,
Moved downward by the servo motor 130,
The driving of the servomotors 114 and 130 is controlled such that the suction cup support frame 160 approaches vertically to the surface of the PS plate 12.

The suction cups 168, 170, 17
A vacuum switch (shown in FIG. 11) is provided in the negative pressure supply means for supplying a negative pressure to the PS plate 12, 192, and the negative pressure when the upper suction cups 168, 170, 172 adsorb the PS plate 12 is reduced. It can be detected.

The suction cups 168, 170, 172, 192
When adsorbing the PS plate 12, first, the air cylinder 18
0, 182, 184 drive shafts 180A, 182A, 18
4A is extended and suckers 168, 170 and 172 extend P
After adsorbing the upper side of the S plate 12, the air cylinder 18
6 by extending the drive shaft 186A, and
The central part of the plate 12 is sucked. Thereafter, the respective air cylinders 180, 182, 184, 186 are operated at different timings and drive amounts (strokes). As a result, the PS plate 12 has the suction cups 172, 17
0, 168, 170, and 172, it is curved in a substantially mountain shape, and a gap is formed between the uppermost PS plate 12 and the next PS plate 12, and the uppermost PS plate 12 and the next PS plate are formed. 12 is performed.

Here, an example of a method for separating the uppermost PS plate 12 from the next PS plate 12 will be described. In this embodiment, regardless of the size of the PS plate 12 mounted on the skid 14, the suction cup 1 is located at a position approximately 40 mm from the upper end of the PS plate 12.
The drive amounts of the servo motors 114 and 130 are set such that the motors 68, 170 and 172 face each other.

Suction cups 168, 170, 172 and suction cup 19
When the uppermost PS plate 12 mounted on the skid 14 is sucked in 2, first, the drive shafts of the air cylinders 180, 182 are accommodated, and the suction pads 168, 170 suck the center of the upper end of the PS plate 12. From the skid 14. At this time, the moving amount of the suction cup 170 is made smaller than the moving distance of the suction cup 168. Thereby, the central part of the upper end of the PS plate 12 of the uppermost layer is pulled out from the skid 14, and the upper end of the PS plate 12 of the uppermost layer is finely curved in the width direction. As a result, the next PS plate 12 that has been in close contact with the uppermost PS plate 12 cannot be curved following a fine curve due to its rigidity.
And a gap is created between them. Air enters from this gap, and the close contact state between the uppermost PS plate 12 and the next PS plate 12 is released.

Thereafter, the drive shafts 180A to 186A of the air cylinders 180 to 186 are accommodated, and the suction cups 168, 1
At 70, 172 and 192, only the uppermost PS plate 12 can be pulled out and taken out of the skid 14 while being sucked.

Note that an air nozzle 19 is provided between the suction cup 170 and the suction cup 172 above the suction cup supporting frame 160.
6 are provided. The air nozzle 196 is protruded from the bracket 196A, and the tip of the air nozzle 196 is disposed so as to blow air from above to between the suction cups 170 and 172.
When a gap is formed between the plate 12 and the next PS plate 12, air is blown toward the gap to send air between the uppermost PS plate 12 and the next PS plate 12, and the PS The close contact between the plates 12 is quickly released.
In addition, each suction cup 16 for sheet-leaving the PS plate 12 of the uppermost layer.
The movement of 8, 170, 172, 192 is not limited to this.

As shown in FIG. 9, a suction rod 34 serving as first detection means and a second
And a detection rod 38 as a third detection means. Detection rods 34, 36, 3
Reference numeral 8 denotes an air cylinder 51, 52, 53, and a block 55 attached to the tip of each drive shaft 51A, 52A, 53A. Each of the air cylinders 51, 52, 53 is the same standard product,
The block 55 is made of resin so that even if the block 55 comes into contact with the surface of the PS plate 12, the PS plate 12 is not damaged.

As shown in FIG. 11, each of the air cylinders 51, 52 and 53 has a sensor 54.
A, 54B, 54C are attached, and the respective sensors 54A, 54B, 54C are connected to the air cylinder 51,
The drive shafts 51A, 52A, 53A of 52 and 53 (all not shown in FIG. 11) are activated when they are slightly pushed back from the extended state. The sensors 54A, 54B, 54C applied to the present embodiment operate when the drive shafts 51A, 52A, 53A are each pushed back by about 1 mm.

As shown in FIGS. 9 and 10, the air cylinder 52 constituting the detection rod 36 is attached to a bracket 56 projecting from the upper end of the suction cup supporting frame 160. The air cylinder 51 constituting the detection rod 34 is provided above the suction cup supporting frame 160 by the suction cup 17.
The air cylinder 53, which is mounted in the vicinity of 0 and constitutes the detection rod 38, is mounted substantially in the center of the lower portion of the suction cup support frame 160, along with the suction cup 192.

As shown in FIG. 10, the mobile transfer device 110
When the sucker support frame 160 faces the PS plate 12 on the skid 14, the detection rod 36 faces the surface of the back plate 22 of the skid 14 exposed above the PS plate 12,
The servo motor 130 controls the support base 1 so that the detection rod 34 faces near the upper end of the PS plate 12 and the detection rod 38 faces near the suction position of the suction cup 192 on the PS plate 12.
The suction cup supporting frame 160 is moved downward from the standby position together with the suction port 34.

In the air cylinder 51 of the detection rod 34, the suction block 168, 170, and 172 of the block 55 are PS plates 1.
It is fixed to the suction cup supporting frame 160 so as to protrude further by a protruding difference Y from the state protruding toward 2. The air cylinder 52 of the detection rod 36 is
Is more than the block 55 of the detection rod 34 by the projection difference X
It is attached so as to protrude toward the S version 12,
The remaining amount of the PS plate 12 on the skid 14 can be detected by the detection rods 34, 36. Sucker support frame 1
Reference numeral 60 denotes a drive shaft 5 of each detection rod 34, 36, 38.
1A, 52A, and 53A are extended so that the block 55 projects in a predetermined state so as to approach the surface of the PS plate 12.

In the detection rods 34 and 36, the protrusion difference X, which is the difference between the amount of protrusion of the air cylinder 51 and the air cylinder 52 from the sucker support frame 160 when the air cylinder 51 extends, is set to the thickness of the predetermined number of PS plates 12. When the suction cup support frame 160 approaches the skid 14,
When the block 55 of the detection rod 34 contacts the surface of the PS plate 12 first, it can be determined that a predetermined number or more of the PS plates 12 remain on the skid 14, and the block 55 of the detection rod 36 When it comes into contact with the back plate 22, it can be determined that the remaining amount of the PS plate 12 on the skid 14 is equal to or less than a predetermined number. As an example, the protrusion difference X is set to 12 mm, which is the thickness of about 50 PS plates 12 having a thickness of 0.24 mm, and the protrusion difference Y is set to 10 mm.

The air cylinder 52 of the detection rod 38
Is that the block 55 is more PS than the block 55 of the detection rod 34
The suction support frame 16 is positioned at a position where the difference between the protrusions Z toward the plate 12 and the protrusions 192 in the contracted state are smaller.
It is attached to 0. This protrusion difference Z occurs when an error of not less than a predetermined range (about 1 ° in this embodiment) occurs in the inclined state of the suction cup supporting frame 160, and when the suction cups 168, 1
The block 55 of the detection rod 38 comes into contact with the PS plate 12 before the block 55 of the detection rod 34 at a position where the sucker support frame 160 is closer to the PS plate 12 than the positions where 70 and 172 suck the PS plate 12. Is set as follows. In the present embodiment, as an example, the protrusion difference Z is set to 10 mm.

As shown in FIG. 11, the sensors 54A, 54B, 54C of the air cylinders 51, 52, 53 of the detection rods 34, 36, 38 are connected to the control circuit 90 of the control section 50. The control circuit 90 includes suction cups 168, 170, 172, 19 of the suction cup support frame 160.
The electromagnetic valves 250 and 252 provided in the pipeline 253 that supplies a negative pressure from the negative pressure source 255 as a negative pressure applying means to the PS 2 when the PS plate 12 is adsorbed by the suction cups 168, 170 and 172. A vacuum switch 254 as negative pressure detecting means for detecting a negative pressure in the pipe 253 is connected. Also,
The control circuit 90 includes suction cups 168, 170, 172, 192
Air cylinders 180, 18 for moving each of
Solenoid valves 256A for driving 2,184,186,
256B, 256C, 256D, a solenoid valve 258 for ejecting air from the air nozzle 196, a solenoid valve 260 for driving the air cylinder 156 for tilting the suction cup supporting frame 160, a solenoid valve 262 for driving the rodless cylinders 142 and 148, and a servo motor 114 and 130 are connected to control the operation of the mobile transfer device 110. The control circuit 90 is connected to a green lamp 87 and a yellow lamp 88 of a signal tower 84 provided as a notification unit (details will be described later).

As shown in FIG. 9, a plate detection sensor 200 having a pair of pin probes 198 is provided below the suction cup supporting frame 160, and a suction cup 192 provided below the suction cup supporting frame 160. When the PS plate 12 is sucked, the plate detection sensor 200 comes into contact with the non-photosensitive surface (support) of the PS plate 12. As shown in FIG. 11, the plate detection sensor 200 is also connected to the control circuit 9.
0, and the presence or absence of the PS plate 12 on the skid 14 can be determined from a change in the energization state between the pair of pin probes 198.

The movable transfer device 110 that has thus attracted and supported the PS plate 12 moves to the standby position along the rail 100 and transfers the PS plate 12 to the fixed transfer device 210. ing. As shown in FIG. 1, the skid loading section 16 is provided with a signal tower 84 that constitutes a notification means near the insertion opening of each skid loading port 44. The signal tower 84 is connected to a rope post 85
And the rope 86 bridged between them surrounds the periphery of the automatic punching device 10. Thus, unless the rope 86 is removed, the skid loading section 16 and the vicinity of the rail 100 cannot be accessed, not to mention replacing the skid 14.

Each signal tower 84 and rope post 8
5 is provided with a rope switch (not shown) that operates when the rope 86 is removed.
When the rope switch is operated during the operation of the switch 10, it functions as an emergency stop switch that forcibly shuts off the supply of power and air to the mobile transfer device 100.

Further, a green light 87 and a yellow light 88 are arranged in two stages above the signal tower 84. The yellow lamp 88 of the signal tower 84 flashes when the amount of the PS plate 12 mounted on the skid 14 loaded in the corresponding loading port 44 becomes less than a predetermined amount, and the remaining amount of the PS plate 12 becomes small. To be notified. When the plate detection sensor 200 detects that the PS plate 12 has disappeared from the skid 14, the state changes from a blinking state to a lighting state. When it is determined that the PS plate 12 is not on the skid 14, the suction cups 168, 170, 172,
The supply of the negative pressure to 192 may be canceled to stop the processing.

The green light 87 of the signal tower 84
Is turned on when the skid 14 is inserted into a predetermined position of the loading port 44 when the skid 14 is replaced. Further, a plurality of rope posts 85 each having an operation switch board 89 disposed at the upper end thereof are set in the rope post 85 surrounding the skid loading section 16 (two as an example in the present embodiment), and are moved and transferred for exchanging the skid 14. The apparatus 110 is temporarily stopped, and the suspended transfer apparatus 110 is restarted. Also, the stage 4 of the skid loading unit 16
2 may be provided with a melody horn (not shown) that operates in conjunction with a stop indicator light when the mobile transfer device 110 is temporarily stopped.

Next, the operation of the automatic punching apparatus 10 according to this embodiment will be described. In the auto-punching apparatus 10, the PS plate 1 is previously inserted into each loading port 44 of the skid loading section 16.
2 are mounted and positioned, and the PS plate 1 loaded in each of the loading ports 44 is mounted.
The size and type (for example, negative type, positive type, or no water type) of the second are input to the control unit 50. Here, when the size and type of the PS plate 12 to be taken out are input to the control unit 50, the loading port 44 in which the PS plate 12 of the desired size and type is loaded is searched, and the PS port 12 is loaded into the loading port 44. The PS plate 12 is taken out from the skid 14 by the movable transfer device 110 and supplied to the punch device 240 via the fixed transfer device 210. The PS plate 12 in which a punch hole is formed at a predetermined position by the punch device 240 is transferred to an unillustrated printing plate machine or the like.

The moving / transferring device 110 removes the PS plate 1
When the size or the size and the type are input, the skid 14 loaded with the predetermined PS plate 12 is searched from the skids 14 loaded in the skid loading unit 16, and the rails are determined based on the search result. Start moving along 100. Moving / transferring device 1 driven by servo motor 114
When 10 moves on the rail 100 and stops at a predetermined position of the loading port 44 in which the desired PS plate 12 is loaded,
The moving transfer device 110 starts the PS plate 12 suction operation.

The PS plate 12 by the moving transfer device 110 will be described below.
Will be described with reference to the flowchart shown in FIG.

The moving / transferring device 110 is initially stopped at a predetermined position with respect to the loading port 44 in which the skid 14 carrying the PS plate 12 corresponding to the requested size and type is loaded. In step 300, the rodless cylinders 142 and 148 are driven to simultaneously extend the two stages of the arm 140 and the support frame 150 from the original position, so that the sucker support frame 160 faces the skid 14 loaded in the loading port 44. Let it. At this time, the servomotor 130 is driven to lower the sucker support frame 160 together with the support base 134 from the original position to a predetermined position in accordance with the required size of the PS plate 12.

As a result, in the mobile transfer device 110,
Since the rodless cylinders 142 and 148 are simultaneously driven in the same direction, the sucker support frame 160 can be made to protrude from the standby position in a short time to face the skid 14.

Thereafter, in step 302, the air cylinder 156 is driven to incline the suction cup supporting frame 160 from the original position in a substantially vertical state to a predetermined state. As a result, the suction cup supporting frame 160 is substantially parallel to the surface of the PS plate 12 mounted on the skid 14. In this state, the support base 1 to which the arm 140 is attached is
Since the suction rod 34 is lowered to a predetermined height, the detection rod 36 is opposed to the back plate 22 of the skid 14 by tilting the suction cup supporting frame 160, and the detection rod 34 and the suction cup 1
68, 170, and 172 face the upper end of the PS plate 12.

In the next step 304, the air cylinders 180, 182, 184 are driven to drive the suction cup supporting frame 1
The suction cups 168, 170, 172 on the upper side of 60 are protruded, and the air cylinders 51, 52, 53 are driven to protrude the blocks 55 of the detection rods 34, 36, 38 into a predetermined state. As a result, as shown in FIG.
70 (168, 172), the block 55 of the detection rod 34
Protrudes, and furthermore, the block 5
5 protrudes. Further, since the suction cup 192 on the lower side of the suction cup supporting frame 160 is in a contracted state, the block 55 of the detection rod 38 protrudes from the suction cup 192, and is retracted from the block 55 of the detection rod 34 by the projection difference Z toward the suction cup supporting frame 160. State.

Next, in the moving / transferring device 110, while the servo motor 114 is driven to move the suction cup supporting frame 160 in a direction approaching the PS plate 12 on the skid 14, the servo motor 130 is driven to move the suction cup supporting frame 160. 60 are simultaneously lowered (step 306). As a result, the suction cup supporting frame 160 approaches the PS plate 12 on the skid 14 in parallel and perpendicularly to the surface of the PS plate 12, and the suction cups 168, 170, 172 and the block 55 of the detection rods 34, 38 are substantially linear. It moves toward the vicinity of the upper end of the PS plate 12. Further, the suction cup supporting frame 160 moves quickly at a relatively high speed (a speed higher than the suction speed described later).

In the next steps 308 to 312, the approach of the suction cup supporting frame 160 to the skid 14 and the PS plate 12 on the skid 14 are detected by the detection rods 34, 36, 38. That is, when a predetermined number (50 in this embodiment) or more of the PS plates 12 are mounted on the skid 14, the detection rods 34 are first moved to the PS plate 12
This is detected in step 312 because it comes into contact with the upper part of the surface. When the remaining amount of the PS plate 12 on the skid 14 is reduced to be smaller than a predetermined number, the detection rod 34
The block 55 at the tip of the detection rod 36 that projects further comes into contact with the back plate 22 of the skid 14 and can detect this (step 310). In this case, step 31
Then, the process goes to step S4, in which the yellow light 88 of the corresponding signal tower 84 is blinked to notify that the remaining amount of the PS plate 12 on the skid 14 is reduced.

When the blinking of the yellow lamp 88 of the signal tower 84 is confirmed, before the PS plate 12 on the skid 14 runs out, the skid 14 on which the PS plate 12 is newly mounted is
Can be prepared, so that the mobile transfer device 110 can take out the requested PS plate 12 smoothly and without delay.

In step 208, the detection rod 38
It is confirmed whether the S version 12 has been detected. Detection rod 34
The fact that the detection rod 38 comes into contact with the PS plate 12 earlier means that the detection rod 34 does not face the upper end of the PS plate 12. That is, a PS plate 12 of a size different from the PS plate 12 of the size to be taken out by the moving transfer device 110 (a PS plate 12 of a small size indicated by a two-dot chain line in FIG. 10) is mounted on the skid 14. . If the suction cup supporting frame 160 is brought close to the skid 14 in such a state, the suction cups 168, 170 and 172 may collide with the back plate 22 and be damaged, or the suction cup supporting frame 160 may be damaged. 316, the servomotors 114 and 130 are stopped, and the suction cup supporting frame 1 is stopped.
The approach movement of the 60 to the skid 14 is stopped.

Further, when the inclination angle of the suction cup supporting frame 160 is abnormal, it can be confirmed from the projection difference Z between the detection rod 38 and the detection rod 34. That is,
If the angle of inclination of the suction cup support frame 160 is less than the normal inclination angle, the detection rod 38 is
To approach the S plate 12, the detection bar 38 detects the PS plate 12 before the detection bar 34. When an error occurs in the inclined state of the suction cup supporting frame 160, the suction cups 168, 17
Since the suction surfaces 0 and 172 are not parallel to the surface of the PS plate 12, the PS plate 12 cannot be reliably sucked. By detecting such a state by the detection rod 38 in advance, the suction cups 168, 17
0, 172 can be prevented from approaching the PS plate 12.

In this way, the sucker support frame 160 is made to approach the PS plate 12 while checking the size of the PS plate 12 laminated on the skid 14, and the uppermost PS plate 12 is detected by the detection rod 34. , Suction cup support frame 16
When it is confirmed that 0 has approached the PS plate 12, in step 320, the drive speed of the servo motors 114 and 130 is reduced to slowly move the suction cup support frame 160,
The solenoid valve 250 is opened to supply the negative pressure from the negative pressure source 255 to the upper suction cups 168, 170, 172. Thus, the suction cups 168, 170, and 172 approach the PS plate 12 while sucking the surrounding air, and when the suction plates 168, 170, and 172 come into contact with the uppermost PS plate 12, they adsorb the PS plate 12.

In step 324, the vacuum switch 254
2 supplying to suction cups 168, 170, 172 by
From the pressure state in 53, it is confirmed whether or not all the suction cups 168, 170, 172 are adsorbing the PS plate 12.

At this time, in step 322, it is confirmed whether or not the detection rod 38 for detecting the abnormal inclination of the suction cup supporting frame 160 is operating. The detection rod 38 detects the PS plate 12 when the suction cups 168, 170, and 172 move in a direction closer to the PS plate 12 than the position where the suction plate 168 sucks the PS plate 12. When the detection rod 38 operates without the switch 254 operating, for example, the vacuum switch 254 or the suction cups 168, 17
It can be determined that a malfunction has occurred in the mechanism for supplying the negative pressure to 0 and 172, and the process proceeds to step 316 to stop the movement of the suction cup supporting frame 160.

After proceeding to step 316, in the next step 318, abnormal processing such as stopping the removal of the PS plate 12 and returning each part of the mobile transfer device 110 to the standby position is performed.

When it is confirmed that the suction cups 168, 170, 172 of the suction cup support frame 160 have absorbed the uppermost PS plate 12 on the skid 14 in a predetermined state, step 32 is executed.
In 6, the driving of the servomotors 114 and 130 is stopped, and the movement of the suction cup supporting frame 160 is stopped. At the same time, the block 55 of the detection rods 34, 36, 38 is returned.

In the next step 328, while supplying air to the air cylinder 186 to cause the suction cup 192 to protrude toward the surface of the PS plate 12, the electromagnetic valve 152 is opened to supply a negative pressure to the suction cup 192. Thus, when the suction cup 192 comes into contact with the PS plate 12, the PS plate 12 is sucked by the negative pressure. At this time, the plate detection sensor 200 also approaches the uppermost PS plate 12 at the same time, and the pair of pin probes 198
It is confirmed that the PS plate 12 remains on the skid 14 by contacting the tip of the PS plate 12 with the PS plate 12, and that the PS plate 12 is sucked by the suction cup 192 (step 33).
0).

If the plate detection sensor 200 cannot detect the PS plate 12, it is determined that the PS plate 12 does not remain on the skid 14, and the process proceeds to step 332, where each suction cup 168, 170 , 172, and 192, the removal of the PS plate 12 is interrupted, and suction stop processing such as returning all the suction cup support frames 160 and the like to their original positions is performed. Further, in step 331,
The fact that the PS plate 12 is missing on the skid 14 is output, and the yellow lamp 88 of the signal tower 84 of the corresponding loading port 44 is changed from the blinking state to the lighting state to be notified.

In step 330, each suction cup 168, 170,
172 and 192 confirm that the uppermost PS plate 12 has been adsorbed in a predetermined state, and in the next step 334, the PS plate 12 is subjected to the single-wafer processing as described above, and the skid 14
Only one uppermost PS plate 12 is taken out from above. Thereafter, in step 336, the suction cups 168, 170, 17
In a state where the PS plate 12 is sucked and held by 2, 192,
The drive shaft 156A of the air cylinder 156 is contracted to return the inclination of the suction cup support frame 160, and the rodless cylinders 142 and 148 and the servomotor 130 are driven to move the arm 140, the support frame 150, and the suction cup support frame 160 to their original positions. return.

In this way, the suction cup supporting frame 160 approaches the PS plate 12 on the skid 14 while confirming whether or not the PS plate 12 is approaching in a predetermined state. In addition, the suction cup support frame 160 has the PS plate 1
Suckers 168, 170, and 172 that adsorb 2
The suction plate 168, 170, and 172 move at a relatively high speed until approaching the S plate 12, and the moving speed of the suction cup supporting frame 160 is reduced after the suction plates 168, 170, and 172 approach the PS plate 12, so that the PS plate 12 is quickly moved. At a slow speed when the suction cups 168, 170, and 172 come into contact with the PS plate 12, so that the suction
The surface of the S plate 12 may be damaged, or the suction cups 168, 170,
172 and members supporting them are not damaged.

Thereafter, the moving / transferring device 110 moves the rail 1
The servo plate 114 is moved to a standby position facing the fixed transfer device 210 along with 00 to transfer the PS plate 12 to the fixed transfer device 210. In the moving transfer device 110, the arm 140 and the support frame 150
The suction support frame is projected or accommodated by the step expansion and contraction, so that the suction support frame 160 can be moved in a compactly housed state even when the projection amount of the suction support frame 160 is increased, so that the PS plate 12 of a relatively large size is suspended. Since it is not necessary to take a large moving space even if the automatic punching device is moved in a state in which the automatic punching device is moved, the automatic punching device 10 can be installed in a small space.

In the present embodiment, the skid 14 serving as a mounting table is used.
The back plate 22 is tilted, and the support plate 24 and the back plate 22
In addition to supporting the plate 12, the detection rods 38, 34, and 36 are arranged in this order from the support plate 24 side (the lower side in the vertical direction) (the detection rod 38 is a position where the first size PS plate 12 can be detected, and the detection rod 36 Is a position where the back plate 22 can be detected), but the back plate 22 of the skid 14 is leveled so that the PS plates 12 are stacked horizontally, and the end faces of the PS plates 12 are aligned in one direction. By arranging the detection rods 38, 34, 36 in the above order from the aligned end faces, the same object as in the present embodiment can be achieved.

In the present embodiment, the PS plate 12 on the skid 14 is detected by the detection rod 38 serving as the third detection means. It may be configured to move to face. Thus, for example, when the size of the PS plate 12 actually stacked on the skid 14 is larger than the size of the PS plate 12 to be taken out by the moving / transferring device 110, the removal of the PS plate 12 is stopped. can do.

In this embodiment, the sheet material is PS
Plate (photosensitive lithographic printing plate) 12 is applied, and the moving transfer device 1
Although the example in which the suction cup supporting frame 160 to which the present invention is applied is described in FIG. 0, the configuration of the sheet material and the sheet material removing device to which the present invention is applied is not limited.
For example, the present invention can be applied to a sheet material removing apparatus for removing another photosensitive material such as a film and a sheet material such as paper one by one from the uppermost layer. In addition, the suction cup support frame 16
Although the PS plate 12 laminated on the skid 14 is taken out in a state where 0 is inclined (about 15 ° with respect to the vertical), the inclination angle of the laminated PS plate 12 is not limited to this. It may be a state of being stacked in a horizontal state.

In this embodiment, an air cylinder provided with a sensor which operates when the drive shaft expands and contracts by a predetermined amount is used as the first, second and third detecting means, but the detecting means is not limited to this. is not. For example, a photoelectric type or an ultrasonic type that operates when approaching a measured object to a certain distance,
A magnetic sensor or the like may be applied, and not only an air cylinder but also other mechanical detection means can be applied.

Further, the first, second and third detecting means are:
Applications such as using different sensors are also possible.

[0099]

As described above, the sheet material removing apparatus of the present invention can check the remaining amount of the sheet material when removing the sheet material, so that the sheet material can be replenished without delay. Work is not interrupted. Also,
When the sheet material is sucked, the third detecting means checks whether the size of the sheet material is correct. Therefore, the sheet material may be damaged when trying to suck a sheet material having a different size, or the sucker may be damaged. It has an excellent effect that it is possible to prevent inconveniences such as inconvenience.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a schematic configuration of an automatic punching apparatus applied to the present embodiment.

FIG. 2 is a perspective view showing a skid applied as a mounting table in the present embodiment.

FIG. 3 is a schematic side view of the skid shown in FIG. 2;

FIG. 4 is a schematic perspective view of a loading port in which a skid is arranged.

FIG. 5 is a schematic plan view of a loading port.

FIG. 6 is a schematic cross-sectional view of the skid loaded in the loading port cut along the loading direction.

FIG. 7 is a perspective view of a main part showing the vicinity of a gantry of the moving transfer device of the present embodiment.

FIG. 8 is a perspective view of a main part showing a frame and an arm of the moving transfer device.

FIG. 9 is a perspective view showing a suction cup supporting frame to which the present invention is applied.

FIG. 10 is a schematic side view showing a state where the suction cup supporting frame faces the skid.

FIG. 11 is a schematic block diagram showing a part of a control unit.

FIG. 12 is a flowchart illustrating an example of removal of a PS plate by the moving transfer device.

[Explanation of symbols]

 Reference Signs List 10 auto punching device 12 PS plate (sheet material) 14 skid (mounting table) 22 back plate 34 detection rod (first detection means) 36 detection rod (second detection means) 38 detection rod (third detection means) 51, 52, 53 Air cylinder 55 Block (pressing member) 50 Controller 110 Moving / transferring device 160 Suction cup support frame (Suction cup support section) 168, 170, 172, 192 Suction cup 254 Vacuum switch (negative pressure detecting means) 255 Negative pressure Source (negative pressure applying means)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 7/04 B65H 3/08

Claims (5)

(57) [Claims] 1. A sheet material take-out device for sucking, holding, and taking out a sheet material sequentially from the uppermost layer of the sheet material laminated on a mounting table by a suction cup, wherein the suction member is attached and the sheet material is sucked. A suction cup supporting portion that moves toward the uppermost sheet material to bring the suction cup into contact with the uppermost sheet material, and the suction cup provided on the suction cup supporting portion and before the suction cup contacts the uppermost sheet material, A first detecting means for detecting the surface of the upper sheet material, and a second detecting means provided on the suction cup supporting portion and projecting in the direction of the mounting table by a predetermined length from the first detecting means, When the second detecting means detects the surface of the mounting table before the first detecting means detects the surface of the uppermost sheet material, the number of stacked sheets on the mounting table is a predetermined number. Notify when the number is less than A sheet material take-out device provided with a notifying means. 2. A third detection means provided on the suction cup supporting portion at a distance from the surface of the mounting table before the first detection means, and the third detection means is provided by the first detection means. 2. The sheet according to claim 1, further comprising control means for stopping the movement of the suction cup supporting portion when detecting the surface of the uppermost sheet material before detecting the surface of the uppermost sheet material. Material removal device. 3. A third detecting means provided on the suction cup supporting portion at a distance from the surface of the mounting table before the first detecting means, and the third detecting means is provided by the second detecting means. 2. The sheet removing device according to claim 1, further comprising control means for stopping the movement of the suction cup support when the surface of the uppermost sheet is detected before detecting the surface of the mounting table. . 4. A negative pressure applying means for applying a negative pressure to the sucker, a negative pressure detecting means for detecting a negative pressure applied by the negative pressure applying means, and a first pressure sensor provided on the suction cup supporting portion.
A third detecting means provided at a distance from the surface of the mounting table before the detecting means, and a third detecting means for detecting that the suction cup has absorbed the uppermost sheet material by the negative pressure detecting means.
2. A sheet removing device according to claim 1, further comprising control means for stopping the movement of said suction cup support when said detecting means detects said uppermost sheet material. 5. The suction device according to claim 1, wherein the first, second, and third detection means include an air cylinder and a pressing member attached to a distal end of a drive shaft of the air cylinder. The sheet material take-out device according to any one of claims 1 to 4, wherein the pressing member comes into contact with the surface of the mounting table or the surface of the uppermost sheet material by moving the support portion.