JPH06106655A - Method and apparatus for separating molding part and refuse part of sheet material - Google Patents

Abstract

PURPOSE:To reduce the cost of a separation device and to dispense with the keeping space of a separation mold by separating the molding part and refuse part of a sheet material without requiring the separation mold. CONSTITUTION:A pair of drums 2, 3 partially reduced in pressure at the opposed parts therein and capable of drawing a sheet material B at least to a part of the outer peripheral surfaces thereof are provided in a synchronously rotatable manner. The molding part B1 of the sheet material B is fixed to the drawing part 2a of the outer periphery of one drum 2 and the refuse part B2 thereof is fixed to the drawing part 3a of the outer periphery of the other drum 3. A masking member making the drawing of the sheet material B to the drawing parts 2a, 3a impossible is provided. The sheet material B to be separated into the molding part and the refuse part is synchronously supplied to the nip of both drums in this state one at a time while both drums are rotated. The molding part and refuse part of the sheet material B are drawn to the outer peripheral surfaces of the drums at the drawing parts other than the masking member to be separated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is for separating a molding part and a scrap part from a sheet body such as paper after a molding part used as a product and an unnecessary scrap part are partitioned and punched out. The present invention relates to a separation method and a separation device.

[0002]

2. Description of the Related Art Generally, a plurality of paper boxes and the like for folding and assembling are taken from one large sheet body. It has been practiced to leave stoppers (joints) for preventing slipping out at a plurality of positions and punch various forming creases on the forming part, and then separate the forming part from the scrap part.

The formed portion after the punching is merely connected to the scrap portion by a slightly stopping portion, and the formed portion can be easily separated from the scrap portion in terms of each sheet body. However, when a large number of sheet bodies are stacked, it is difficult to separate the molding portions of all the sheet bodies from the scrap portion all at once, and a large amount of force is required for the separation work.

Therefore, conventionally, for example, Japanese Patent Laid-Open No. 2-175
As disclosed in Japanese Laid-Open Patent Publication No. 139, a male / female separation mold is prepared which is matched with the molding portion and the scrap portion, and the molding portion of the sheet body stacked in a large number is pressed by the separation mold from the scrap portion. It is known that the molding portion and the scrap portion are separated by pulling out.

[0005]

However, in this conventional method, since the separation mold is used for separating the molding portion and the scrap portion,
It is necessary to manufacture the separation mold as a dedicated one in accordance with the molding portion, and there is a disadvantage that the cost is increased accordingly. Also, if the same molding part is to be separated after a certain period of time, it is necessary to store the separation mold to use it.
There is also the problem of storage space.

The present invention has been made in view of the above points. An object of the present invention is to improve a method of separating a molding portion and a scrap portion of a sheet body so that a molding portion is not required. In addition, it is possible to separate the waste portion, reduce the cost of the separating device, and eliminate the need for a separate storage space.

[0007]

In order to achieve the above-mentioned object, in the inventions of claims 1 and 2, the inside is partially negative pressure at the facing portion and the sheet body is formed on at least a part of the outer peripheral surface. A pair of drums capable of adsorbing
By fixing the molding part of the sheet body to the suction part on the outer circumference of one drum, and the scrap part on the suction part of the outer circumference of the other drum,
These are used as masking members to prevent the sheet from being adsorbed to the adsorbing section, and while rotating both drums in that state, the sheet bodies to be separated between the two drums are sequentially supplied in synchronism one by one. The molded portion and the scrap portion of the body are sucked and separated on the outer peripheral surface of the drum by the suction portions other than the masking member.

That is, according to the first aspect of the invention, as a separating method for separating the molding portion and the scrap portion from the punched sheet body in which the molding portion and the scrap portion are partitioned, at least two sheet bodies that are superposed are stacked. A suction portion that is rotatably provided with rotation axes parallel to each other with a gap that allows passage, and that is capable of sucking a sheet body to at least a part of an outer peripheral wall through a number of suction holes to suck the sheet body to the inside. 1 was formed
A pair of hollow drums and only a predetermined suction range facing the opposing drums of the insides of the drums are set to a negative pressure state so that the sheet body is sucked by the suction section in the suction range. A pressure generating means and a driving means for rotating the both drums in opposite directions in synchronization with each other so that the suction portions of the drums face each other in the gap between the drums are prepared.

Then, in advance, the scrap portion is fixed to the suction portion on one drum surface, while the molding portion is fixed to the suction portion on the other drum surface.

Next, when the suction portions of the respective drums are in positions facing each other in the gap between the two drums, the sheet member is supplied to the gap between the two drum members in synchronism with the suction portion, and the molding portion of the sheet member is fed to the above-mentioned one portion. By adsorbing the scrap portion of the sheet body by the suction portion other than the scrap portion fixed to the suction portion of the drum surface, by sucking the scrap portion of the sheet body by the suction portion other than the molding portion fixed to the suction portion of the other drum surface. , The molding part and the scrap part are separated from the sheet body.

On the other hand, in the invention of claim 2, the above-mentioned claim 1
In the same manner as in the invention described above, as a separating device configured to separate the molding portion and the scrap portion from the punched sheet body in which the molding portion and the scrap portion are partitioned, at least two sheet bodies that are superposed can pass through. A suction unit that is rotatably provided with rotation axes parallel to each other in a state where a gap is provided, and has a suction unit that is capable of sucking and adsorbing a sheet body inside at least a part of an outer peripheral wall through a large number of suction holes. A pair of hollow drums, a drive means for rotating the two drums in opposite directions in synchronization with each other so that the suction portions of the drums face each other in the gap between the drums, and the opposing drums of the drums. Negative pressure generating means for bringing only a predetermined suction range facing the suction range into a negative pressure state so that the sheet body is sucked by the suction section in the suction range, and the suction section of each of the drums has a gap between both drums. When they are in opposite positions In synchronization with the provision of a sheet feeding means for feeding the sheet material in the gap between the drums.

Then, the forming portion of the sheet body, which is supplied to the gap between the two drums by the sheet body supplying means by the negative pressure generating means, except the scrap portion which is previously fixed to the suction portion on the surface of one drum. On the other hand, the scrap portion of the sheet body is sucked by the suction portion other than the molding portion which is fixed in advance to the suction portion of the other drum surface to separate the molding portion and the scrap portion from the sheet body. To configure.

According to a third aspect of the present invention, in the separating apparatus according to the second aspect of the invention, the adsorption portion is formed over the entire circumference of each drum outer peripheral wall.

According to a fourth aspect of the present invention, the sheet body supply means is a belt conveyer that sucks the sheet body onto the belt surface by negative pressure suction and conveys the sheet body.

According to a fifth aspect of the invention, in the separating apparatus according to the fourth aspect of the invention, folding means for folding the sheet body along a folding line perpendicular to the conveying direction is provided in the middle of the belt conveyor.

According to a sixth aspect of the present invention, the belt conveyor has an upstream side conveyor configured to adsorb a sheet body on a lower surface thereof and vertically moved by elevating means.
The upstream side conveyor is configured to adsorb the uppermost sheet body in the stacked large number of sheet bodies when the upstream side conveyor descends.

In a seventh aspect of the present invention, below the drum, cutting means for cutting the scraps separated by the gap between the drums into strips is provided.

According to the eighth aspect of the present invention, the drum gap adjusting means for adjusting the gap between the two drums is provided.

According to the ninth aspect of the invention, there is provided air blowing means for blowing air to the outside of the drum from the suction portion in the vicinity of the rear side of the suction range of at least one drum in the drum rotation direction.

[0020]

With the above construction, in the inventions of claims 1 and 2, the scrap portion is previously fixed to the suction portion of one drum outer peripheral wall, and the molding portion is fixed to the suction portion of the other drum outer peripheral wall. , The fixed scraps and moldings serve as masking members to block the suction part, so that the suction part cannot suck the sheet body at the scraps and moldings, and the other parts are the original suctions. It remains as a section. Therefore, when both the drums are rotated in synchronization with each other by the driving means, and the sheet body is supplied to the gap between the two drums when the suction portion of each drum moves to the suction range facing each other in the gap between the two drums. ,
Due to the negative pressure generated by the negative pressure generating means, the forming portion of the sheet body is adsorbed by the suction portion other than the scrap portion fixed to the suction portion on the surface of the one drum, while the scrap portion of the sheet body is in the other drum. It is adsorbed by the adsorption part other than the molding part fixed to the adsorption part on the surface. In this suction state, the sheet body is transported through the gap between the drums, so that the molding portion and the scrap portion are separated from the sheet body. Then, when the forming part and the scrap part of the sheet body leave the gap between both drums by the rotation of the drum and come out of the suction range of the drum, the suction to the forming part and the scrap part is released, and the forming part and the scrap part are separated. Is separated.

In this case, even if there are many sheet bodies to be separated, the scrap portion and the molding portion as the masking member are separated from the first sheet body, and they are fixed to the suction portion surface of each drum. In other words, for the subsequent sheet body, the masking member functions as a type of mold to separate the molding part and the scrap part, so that a separate mold as in the prior art is not necessary at all. Moreover, since the first one sheet body is used as a mold, the molding portion and the scrap portion can be separated by using the same drum, and cost reduction and generalization can be achieved.

Further, since the masking member is made from one sheet body in this way, it is sufficient to use the first one sheet body as a consumable item for each separation, and it is not necessary to store the separation type, and the storage is required. Space problems can be solved.

According to the third aspect of the present invention, since the suction portion is formed over the entire circumference of the outer peripheral wall of each drum, the scrap portion and the molding portion as the masking member are fixed at arbitrary positions along the entire circumference of the drum. be able to.

According to the invention of claim 4, since the sheet body supplying means is a belt conveyer which sucks the sheet body onto the belt surface by negative pressure suction and conveys the sheet body, it is possible to convey the sheet body while preventing the displacement thereof. The sheet bodies can be accurately supplied one by one in synchronization with the movement of the suction portion in the gap between the drums.

According to the fifth aspect of the invention, the sheet body conveyed by the belt conveyor is folded along the fold line perpendicular to the conveying direction by the folding means in the middle thereof.
As a result, the boundary portion between the molding portion and the scrap portion of the sheet body conveyed by the conveyor is displaced, and it is possible to easily separate the two in the gap between the drums.

According to the sixth aspect of the present invention, when the upstream conveyor of the belt conveyor is moved downward by the elevating means, the uppermost sheet member of the stacked sheet members is adsorbed on the lower surface thereof. Transport. Therefore, a large number of stacked sheets can be picked up one by one to the sheet-shaped conveyor and the transfer can be automatically performed.

In the invention of claim 7, the scrap portion separated in the gap between the drums is cut into strips by the cutting means below the drum, so that the scrap portion can be automatically processed.

According to the eighth aspect of the present invention, since the gap between the two drums can be adjusted by the drum gap adjusting means, even if the thickness of the sheet body is changed, it is possible to easily cope with it and perform the separating operation.

According to the ninth aspect of the invention, when the molding portion or the scrap portion of the sheet body exits the suction range of the drum through the gap between the drums, it is pushed by the air blown from the suction portion to the outside of the drum by the air blowing means. And forcibly separated from the adsorption part. This ensures that the molding section or the scrap section can be separated from the drum.

[0030]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 shows the overall structure of a separating apparatus A according to an embodiment of the present invention. This separating apparatus A has a plurality of molding parts B1, B1, ... As body parts in the previous step, as shown in FIG. Used to separate the molding parts B1, B1, ... And the scrap part B2 from a sheet body B made of, for example, A0 size (841 mm × 1189 mm) paper, which is punched by dividing the scrap part B2 as an end part. It is something.

In FIG. 3, reference numeral 1 denotes a frame having front and rear wall portions. An upper drum 2 is arranged above the left side of the frame 1, and a lower drum 3 is arranged below the upper drum 2. It is set up.

As shown in enlarged detail in FIGS. 1 and 2, the upper drum 2 is rotatably supported by a support shaft 4 in the front-rear direction (direction orthogonal to the paper surface of FIG. 1) via bearings 5 and 5. The support shaft 4 is non-rotatably attached to brackets 30 and 30 which will be described later and are supported by the frame 1.
The support shaft 4 has a double structure in which a hollow outer shaft 4a and a hollow inner shaft 4b that is concentrically fitted and inserted into the hollow outer shaft 4a are integrated. On the other hand, the lower drum 3 is rotatably supported via a bearing (not shown) by a support shaft 6 which is parallel to the support shaft 4 of the upper drum 2 and which is non-rotatably supported by the frame 1. Like the support shaft 4, also has a double structure including a hollow outer shaft 6a and an inner shaft 6b. The lengths of both drums 2 and 3 in the axial direction are the same, and the width of the sheet B to be separated (11
It is slightly larger than 89 mm). A gap 7 is formed between the drums 2 and 3 so that at least two superposed sheet bodies B and B can pass therethrough. ，
The sheet body B passes through the gap 7 between the sheets 3 and is conveyed from the right side to the left side in FIG.

Each of the drums 2 and 3 has a hollow cylindrical shape, and a large number of suction holes 8, 8 ... Are formed through the outer peripheral wall thereof at regular intervals in the vertical and horizontal directions. ,, by the sheet body B on the entire outer peripheral wall of the drums 2 and 3, respectively.
Adsorption sections 2a and 3a capable of adsorbing are formed.

Further, inside each of the drums 2 and 3, suction ducts 9 and 9 are arranged on the opposite side of each drum 2 (or 3) to the opposing drum 3 (or 2). The inner ends of 9 are the outer shafts 4a, 6 of the support shafts 4, 6, respectively.
It is fixedly supported by a. Each suction duct 9 has a pair of front and rear wall portions opposed to each other in the direction along the support shafts 4 and 6 adjacent to the side walls of the drums 2 and 3 and extending outward in the radial direction of the drum in parallel with the side walls of the drums 2 and 3. A pair of left and right wall portions in a direction orthogonal to the side wall of the drum has a rectangular frame-shaped cross section extending outward in the drum radial direction over a predetermined angular range in the drum circumferential direction. Specifically, the upper drum 2
Of the suction duct 9 of the lower drum 3 from the vertical plane L connecting the axial centers of the drums 2 and 3 to the front and rear sides in the rotation direction of the drum 2 by 30 °.
In this case, from the vertical plane L connecting the axial centers of the two drums 2 and 3, the drum 3 is expanded in the range of 45 ° to the rear side and 10 ° to the front side in the rotation direction of the drum 3, that is, 55 ° in total. The outer end of each suction duct 9 is arranged close to the inner surface of the outer peripheral wall of the drums 2, 3. And the space in each suction duct 9 is the outer shaft 4a, 6a and the inner shaft 4b, 6b in each support shaft 4, 6.
Is communicated with the negative pressure space 10 between the two support shafts 4, 6
The negative pressure spaces 10, 10 are connected to a suction pump 11 as negative pressure generating means via a pipe 12, and the operation of the pump 11 causes the drums 3, 2 facing each other among the drums 2, 3 to be opposed to each other. The negative pressure is applied only to the suction range in the suction duct 9 which is a portion facing the, and the air is sucked into the drums 2 and 3 from the suction holes 8 in the outer peripheral walls of the drums 2 and 3 in the suction range. By doing so, when the sheet body B is supplied to the suction portions 2a, 3a on the outer circumference of the drums 2, 3, the sheet body B is sucked onto the suction portions 2a, 3a in the suction range, that is, the outer peripheral surfaces of the drums 2, 3. It is like this.

Further, a blowout duct 13 is disposed inside the upper drum 2 so as to be adjacent to the suction duct 9 at the rear side in the drum rotation direction, and the inner end of the blowout duct 13 has a support shaft similar to the suction duct 9. 4 is fixedly supported by the outer shaft 4a. The blow-out duct 13 has a pair of front and rear wall portions opposed to each other in the direction along the support shaft 4 in the direction close to the side wall of the drum 2 and extending outward in the radial direction of the drum in parallel therewith, and in a direction orthogonal to the side wall of the drum 2. A pair of left and right wall portions are formed in a rectangular frame shape in cross section and extend parallel to each other toward the outer side in the radial direction of the drum, and the outer ends thereof are arranged close to the inner surface of the outer peripheral wall of the drum 2. The inside of the blowout duct 13 is connected to the inner shaft 4 via the connecting duct 14 arranged in the negative pressure space 10 of the support shaft 4.
The blower space 15 is communicated with the blower space 15 in the b. The blower space 15 is connected to a blower pump 16 as an air blowing means through a pipe 17. The blower pump 16 is operated to cause a drum in the suction range of the upper drum 2. By blowing air to the outside of the drum 2 from the suction portion 2a near the rear side in the rotational direction, the gap 7 between the drums 2 and 3 is sucked by the suction portion 2a of the upper drum 2 and conveyed to the forming portion of the sheet B. B1 is forcibly separated from the adsorption portion 2a by the air flow from the blowout duct 13.

A gear 18 is provided on one side of the upper drum 2.
Further, the gear 18 of the upper drum 2 is provided on the side portion of the lower drum 3.
Gears (not shown) that mesh with the gear 18 with the same number of teeth as the above are respectively attached. Also, as shown in FIG.
A sprocket 19 is attached to the lower drum 3, and the sprocket 19 is connected to a sprocket 21 on a first drive shaft 20 supported by the frame 1 via a chain 22. Another sprocket 23 is attached to the first drive shaft 20, and the sprocket 23 is connected to a sprocket 25 of a reduction gear motor 24 as a driving means attached to the lower center of the frame 1 via a chain 26. When the motor 24 is driven, the suction portions 2a and 3a of the drums 2 and 3 are moved to the drums 2 and 3, respectively.
3 in opposite directions in synchronism with each other so as to face each other with a gap 7 therebetween, that is, in the upper drum 2 in the clockwise direction in FIGS. 1 and 3, and in the lower drum 3 in the counterclockwise direction. Rotate in each direction.

As shown in FIGS. 1 and 2, there is provided a drum gap adjusting mechanism 29 for raising and lowering the upper drum 2 by a predetermined distance to adjust the gap 7 between the drums 2 and 3. That is, the support shaft 4 of the upper drum 2 is loosely fitted in a support hole 27 formed in the front and rear walls of the frame 1 and having a diameter slightly larger than that of the support shaft 4, and is vertically movable by a predetermined distance.
The drum gap adjusting mechanism 29 includes a pair of brackets 30 for supporting both ends of the support shaft 4 protruding outside the frame 1.
The outer shaft 4 a of the support shaft 4 is fixedly supported by the key 31 so as not to rotate in the middle portion of each bracket 30. One end of each bracket 30 is the frame 1
In the left side portion in the horizontal direction with respect to the axis of the upper drum 2 (specifically, a portion offset slightly upward so that the support shaft 4 moves up and down toward the supply side of the sheet body B when the bracket 30 swings). It is swingably supported by a support pin 32.

On the other hand, the frame 1 on the right side of the lower drum 3 is rotatably supported by a transmission shaft 33 extending in the front-rear direction in parallel with the support shafts 4 and 6 while penetrating the frame 1. Eccentric rings 34, 34 each having an eccentric center with respect to the shaft center of the transmission shaft 33 are attached to the ends located outside the frame 1 so as to rotate together. A driven ring 36 is externally fitted to each eccentric ring 34 via a bearing 35, and each driven ring 36 is connected to the other end of each bracket 30 via a rod member 37 whose length is adjustable. ing. A worm wheel 38 is rotatably connected in the frame 1 of the transmission shaft 33 and near the front wall of the frame 1. The worm wheel 38 is meshed with a worm 39 disposed below it, and a shaft 40 of the worm 39 extends in the left-right direction, and both ends thereof are rotatably supported by brackets 41 fixed to the frame 1. . Also, the worm shaft 4
A driven bevel gear 42 meshing with a driving bevel gear 43 is rotatably attached to the right end portion of 0, and the driving bevel gear 43 is rotatably attached to a rear end portion (inside the frame 1) of a shaft 44 extending in the front-rear direction. . This axis 44
Is a bearing member 45 fixed to the front wall of the frame 1 in a penetrating state.
Rotatably supported by the front end (outside of frame 1)
An operating handle 46 is attached to the shaft so as to rotate together. The rotating shaft of the operating handle 46 rotates the transmission shaft 33 to eccentrically move both eccentric rings 34, 34. By this eccentric motion, both brackets 30, 30 are respectively moved. By swinging around the support pins 32, 32 by a predetermined amount, the support shaft 4 of the upper drum 2 is moved up and down so that both drums 2, 2.
The gap 7 between the three is increased or decreased.

As shown in FIG. 3, the suction portions 2a and 3a of the drums 2 and 3, more specifically, the scrap portion B2 'and the molding portion B1' of the sheet body B fixed to the suction portions 2a and 3a, respectively.
When B1 ', ... Move to a position facing each other in the gap 7 between the two drums 2 and 3, the sheet bodies B are supplied one by one to the gap 7 between the two drums 2 and 3 in synchronization with it. A belt conveyor 51 as a means is provided. The belt conveyor 51 includes an upstream side and a downstream side conveyor 52,
71, and a large number of suction holes (not shown) are formed through the conveyor belts 53 and 76 of the conveyors 52 and 71. Further, ducts 54, 54, ... Which communicate the inside with the suction pump 11 are provided at predetermined positions on the back surface of the conveyor belts 53, 76, and each duct 54 is provided only on the back surface side of the conveyor belts 53, 76. The sheet body B is opened and is sucked by the suction pump 11 on the back side of the conveyor belts 53 and 76 to be in a negative pressure state, so that the sheet body B is sucked onto the surfaces of the belts 53 and 76 and conveyed.

The upstream conveyor 52 extends in the left-right direction on the upper right side of the frame 1, and its belt 53 is pivotally supported on the frame 1 at a position higher than the position of the gap 7 between the drums 2 and 3. The pair of right and left rollers 55 and 56 are rotated, and the sheet body B can be adsorbed on the surface (lower surface) of the lower span thereof. A sprocket 57 is integrally attached to the roller 56 on the terminal side (left side in the figure). The sprocket 57 and the output sprocket 60 of the electromagnetic clutch 58 mounted on the frame 1 diagonally lower right of the terminal roller 56 are the chain 6 and the chain 6.
They are connected at 1. The clutch 58 connects and disconnects power transmission between the input and output side sprockets 59 and 60 (shown in an overlapping state in the drawing) having the same diameter in synchronization with one rotation of both drums 2 and 3. The input side sprocket 59 is connected to the sprocket 63 on the second drive shaft 62 supported by the frame 1 via a chain 64. A gear 65 is attached to the second drive shaft 62, and the gear 65 is meshed with a gear 66 attached to the first drive shaft 20. Then, the rotation of the first and second drive shafts 20 and 62 by the operation of the motor 24 causes the end roller 56 to rotate in the clockwise direction in the figure while timing with the clutch 58 so that the conveyor belt 53 starts (see the figure). To the roller 55 on the right side), and the scrap portions B2 'and the forming portions B1', B1 on the suction portions 2a, 3a are rotated.
When ′, ... Moves to the gap 7 between the drums 2 and 3, the conveyance of the sheet body B is started so that the sheet body B can be supplied to the gap 7 in synchronization therewith.

Further, the roller 55 on the starting end side is axially supported by a supporting member 67 which is vertically movable on the frame 1, and the supporting member 67 is a tip portion of an arm 68 which is supported on the frame 1 so as to be swingable in a vertical plane. Are linked to. This arm 6
A piston rod 69a of a cylinder 69 as an elevating means that expands and contracts in synchronization with the rotation of the drums 2 and 3 is connected to an intermediate portion of 8, and the lower end of the body of the cylinder 69 is connected to the frame 1. The arm 68 is swung by the expansion and contraction of the cylinder 69 to move the support member 67 up and down, so that the upstream conveyor 52 is swung in the vertical direction with the roller 56 on the terminal side as a fulcrum. And
The lower right side of the frame 1 is a loading space S for loading a large number of stacked sheet bodies B, B, ... With a forklift or the like for separation.
When the leading end side of the sheet 53 moves downward, one sheet body B at the uppermost position is selected from the plurality of sheet bodies B, B, ... In the carry-in space S on the lower surface (front surface) of the lower span of the belt 53. After sucking only, and then raising the starting end side of the upstream side conveyor 52, the sucked sheet body B is conveyed to the terminal end side by the rotation of the belt 53.
On the terminal side of the upstream conveyor 52, unlike the other parts, in order to drop the sheet body B adsorbed on the lower span lower surface of the belt 53 onto the belt 76 of the downstream conveyor 71, from the back side of the belt 53. Air is blown to the surface side, that is, downward.

On the other hand, the downstream conveyor 71 extends in the left-right direction on the upper portion of the frame 1 so as to connect the end side of the upstream conveyor 52 and the position of the gap 7 between the drums 2 and 3. The downstream conveyor 71 has a first driven roller 72 axially supported by the frame 1 below the end of the belt lower span of the upstream conveyor 52, and substantially the same on the left side of the first driven roller 72. A second driven roller 73, which is axially supported by the frame 1 at a height position and has a diameter larger than that of the first driven roller 72, and a left side of the second driven roller 73 and a right side of the gap 7 between the drums 2 and 3. A third driven roller 74 which is axially supported by the frame 1 at a position (that is, a position lower than the second driven roller 73) and has a diameter smaller than that of the first driven roller 72, and a drive roller attached to the first drive shaft 20. 75 and. A conveyor belt 76 is wound around the rollers 72 to 75, and the belt span between the first to third driven rollers 72 to 74 is left by the rotation of the drive roller 75 in the counterclockwise direction by the operation of the motor 24. The sheet body B adsorbed on the upper surface (surface) of the belt span by moving it in the direction
It is designed to be supplied and transported to. Reference numeral 77 is a roller for changing the direction of the belt span between the first driven roller 72 and the driving roller 75, and reference numeral 78 is also for changing the direction of the belt span between the third driven roller 74 and the driving roller 75. It is a roller for.

In the middle of the downstream side conveyor 71, there is provided a folding mechanism 81 for folding the sheet body B adsorbed on the upper surface of the belt 76 and conveyed along a fold line perpendicular to the conveying direction. There is. This folding mechanism 8
1 is a folding roller 82, which is arranged on the upper left side of the second driven roller 73 with a gap through which the sheet B can pass between the second driven roller 73 and the conveyor belt 76, and a similar gap is formed on the upper right side of the folding roller 82. The bending roller 82 is provided with a pressing roller 83 arranged, and the bending roller 82 is a sprocket 62a of the second drive shaft 62.
(In the figure, it is shown in a state where it overlaps with the gear 65), and is drivingly connected via a chain 84. The chain 84 is diverted by a free sprocket 73a (shown in a state where it overlaps with the roller 73 in the figure) rotatably supported coaxially with the second driven roller 73.
Then, the folding roller 82 is rotated in the clockwise direction in synchronization with the belt 76 of the downstream conveyor 71 so that the front end of the sheet body B is held between the folding roller 82 and the belt 76 and the pressing roller 83.
The rear end of the sheet body B is sandwiched between the belt and the belt and conveyed, and the sheet body B is bent at the curved portion of the belt 76 by the second driven roller 73.

The frame 1 below the lower drum 3 is provided with a cutting device 86 for cutting the scrap B2 separated from the sheet B in the gap 7 between the drums 2 and 3 into strips. There is. The cutting device 86 is a pair of roller cutters 87, 88 that are arranged side by side in the left-right direction and face each other, and are drivingly connected so as to rotate in opposite directions, and the one cutter 87 is drivingly connected via a chain 89. The drive motor 90 is operated to rotate the cutters 87, 88 in opposite directions so that the outer peripheral facing portions thereof move downward by the operation of the drive motor 90, and the drum 2 is inserted in the gap between the cutters 87, 88. , B3 that has fallen from the gap 7 between the first and second passages 3 is cut. In addition, this cutting device 8
On the lower side of 6, the scrap portion B2 cut by the cutters 87 and 88
A conveyor 91 for receiving and transporting it in the front-rear direction and a guide 92 for guiding the cutting waste portion B2 to the conveyor 91 are provided.

Further, on the left side of the frame 1, there is formed a molding portion B1 separated from the sheet body B by the drums 2 and 3,
A molding section unloading conveyor 94 for carrying B1, ... Is provided.

In this embodiment, as shown in FIG. 5, the scrap portion B2 'of the sheet B is previously attached to the suction portion 2a on the surface of the upper drum 2, and the forming portions B1', B1 ', ... The suction pump 1 is attached and fixed to the suction portion 3a on the surface of the drum 3 by an adhesive tape or the like in correspondence with the rotation direction.
The space inside the suction ducts 9 in both drums 2 and 3 is set to a negative pressure state by 1 and the suction portions 2a and 3 on the surfaces of the drums 2 and 3
After allowing the sheet body B to be adsorbed to a, a large number of stacked sheet bodies B, B, ... Incorporated into the carry-in space S are adsorbed one by one on the upstream conveyor 52 of the belt conveyor 51. The sheet body B is transferred from the upstream side conveyor 52 to the downstream side conveyor 71, and the drums 2,
3 is supplied to the gap 7 between the sheet 3, and the molding portions B1, B1, ... Of the sheet body B are attracted to the suction portion 2a other than the scrap portion B2 'which is previously fixed to the suction portion 2a on the surface of the upper drum 2. While adsorbing the scraps with the scraps B2, the scraps B2 are fixed to the suction part 3a on the surface of the lower drum 3 by the molding parts B1 'and B1.
, And the scraping portion B2 are separated from each other by suction by the suction portion 3a other than the suction portions 3a ,.

Next, a method of separating the molded parts B1, B1, ... And the scrap part B2 from the sheet B by using the separating device A of the above embodiment will be described.

In advance, one sheet is taken out of the many sheet bodies B, B, ... Which have been carried into the carry-in space S and supplied to the gap 7 between the drums 2 and 3, and as shown in FIG. The portion B2 'is fixed to the suction portion 2a on the surface of the upper drum 2, and the molding portions B1', B1 ', ... are fixed to the suction portion 3a on the surface of the lower drum 3 by, for example, an adhesive tape or the like in correspondence with the rotation direction. . That is, in this fixed state, when the upper and lower drums 2 and 3 rotate in the opposite directions in synchronization with each other, both drums 2 and 3 are rotated.
A part 7 other than the scrap portion B2 'fixed to the upper drum 2 in a gap 7 between the molding portion B1 and the molding portion B1 fixed to the lower drum 3.
′, B1 ′, ... Are positioned so as to coincide with each other.

After that, the space in the suction duct 9 in both the drums 2 and 3, that is, the suction range is set to a negative pressure state by the suction pump 11, and the sheet body B can be sucked onto the suction portions 2a and 3a on the respective surfaces. Then, the suction holes 8 of the suction portion 2a of the upper drum 2 to which the scrap portion B2 'is fixed are closed by the scrap portion B2', so that only the scrap portion B2 '. The suction effect of the suction portion 2a disappears. On the other hand, the same applies to the lower drum 3, and the suction holes 8, 8 ... Of the suction portion 3a to which the molding portions B1 ', B1', ... Are fixed are the molding portions B1 ', B1' ,. Since it is blocked by, the suction effect of the suction portion 3a is lost only in that portion.

In this state, the motor 24 is operated to rotate both drums 2 and 3, and the belt conveyor 51 is operated. Further, at the same time, the suction pump 11, the blower pump 16, the cutting device 86, and the molding section unloading conveyor 94.
Also activate. With this, first, the cylinder 69
Of the upstream side conveyor 52 is moved downward by the contracting operation of the upstream side conveyor 52, and the lower span lower surface of the belt 53 is in the carry-in space S, and the uppermost sheet body B of the stacked sheet bodies B, B ,. The sheet body B is brought into contact with the upper surface, and the sheet body B is attracted to the lower surface of the belt 53 by negative pressure suction by the suction pump 11. Next, the cylinder 69 extends and the starting end of the upstream conveyor 52 rises. After that, the clutch 58 is turned on in a connected state at a timing synchronized with the rotation of the drums 2 and 3, and the motor 24 is driven. The belt 53 rotates and the sheet body B is conveyed to the end side.
When the sheet body B reaches the end side, the sheet body B adsorbed to the lower surface of the lower span of the belt 53 of the downstream conveyor 71 by the air blown from the back side of the belt 53 to the front side, that is, downward. Reprinted on top.

In this downstream side conveyor 71, the sheet body B is
Is adsorbed on the upper surface of the upper side of the belt 76 and conveyed. On the way, the sheet body B is bent by the folding roller 82, the pressing roller 83 and the conveyor belt 7 in the folding mechanism 81.
6 is conveyed while being sandwiched between 6 and 6, and is bent and bent obliquely downward in the conveying direction by moving along the second driven roller 73.

When the sheet body B reaches the end of the downstream conveyor 71, the sheet body B is fed into the gap 7 between the drums 2 and 3, and the suction portion 2 of each drum 2 and 3 is there.
Adsorbed on a and 3a. As shown in FIG. 4A, when the sheet body B is supplied to the gap 7 between the drums 2 and 3, the molding portions B1, B1, ... Of the sheet body B are already fixed to the lower drum 3. To the molding parts B1 ', B1', ...
Further, the scrap portion B2 is fed in a state in which the scrap portion B2 'is also substantially aligned with the scrap portion B2' fixed to the upper drum 2, respectively. Therefore, as shown in FIG. 4 (b), the formed parts B1, B1, ... Of the fed sheet body B are adsorbed by the adsorbing parts 2a other than the scrap parts B2 'on the surface of the upper drum 2, while the scrap parts are formed. B
2 is adsorbed by the adsorbing part 3a other than the forming parts B1 ', B1', ... On the surface of the lower drum 3, and the sheet body B is transferred through the gap 7 between the drums 2 and 3 in such adsorbing state. It Then, as shown in FIG. 4C, both drums 2,
When it comes out from the gap 7 between the three, each suction portion 2a, 3a
Is out of the open suction range of the suction duct 9, the suction to the molding portions B1, B1, ... And the scrap portion B2 is released, whereby the sheet body B to the molding portion B is released.
1, B1, ... And the scrap portion B2 are separated.

The molding parts B1, B1, ... Are discharged from the gap 7 between the drums 2 and 3 and then pushed by the air blown from the blowing duct 13 to the outside of the drum 2 to be transferred to the molding part carry-out conveyor 94. And is carried out to the outside by the conveyor 94. On the other hand, the scrap portion B2 falls out of the gap 7 between the drums 2 and 3 and then falls as it is into the space between the cutters 87 and 88 of the cutting device 86 where it is cut into strips and then falls and is carried out by the conveyor 62. To be done. The above is the separation operation for one sheet body B, and thereafter, the same operation is repeated for each sheet body B.

Therefore, in this embodiment, the scrap portion B2 'as the masking member and the molding portions B1', B1 ', ... Are separated from one sheet body B and each drum 2, respectively.
If fixed to the surfaces of the suction portions 2a, 3a of No. 3, the masking member functions as a kind of mold for the subsequent sheet body B to separate the molding portions B1, B1, ... And the scrap portion B2. Therefore, the separate type as in the prior art is unnecessary. Moreover, since the first single sheet body B is used, the molded portions B1, B1, ... And the scrap portion B2 can be separated without the need for a separation mold, which results in cost reduction and generalization. Can be achieved.

In addition, since the masking member is made from one sheet body B in this way, the first one sheet body B is used as a consumable item each time the sheet is separated, and there is no need to store the separation mold. The storage space problem can be solved.

Further, the forming portions B1, B1, B1 of the sheet body B,
... and suction portions 2a, 3a for sucking the scrap portion B2 are formed over the entire circumference of each drum 2, 3, so that the scrap portion as a masking member is located at an arbitrary position on the entire circumference of the drums 2, 3. B2 'and the molding parts B1', B1 ', ... Can be fixed, which is convenient.

Further, since the conveyor for supplying the sheet body B to the gap 7 between the drums 2 and 3 is the belt conveyor 51 which sucks the sheet body B onto the surface by negative pressure suction and conveys it, The sheet B can be conveyed while preventing the positional deviation, and the sheet bodies B can be accurately supplied one by one in synchronization with the movement of the suction portions 2a and 3a into the gap 7 between the drums 2 and 3.

In addition, the sheet body B conveyed by the belt conveyor 51 is folded along the fold line perpendicular to the conveying direction by the folding mechanism 81 in the middle thereof, so that the sheet body B forming portion on the conveyor 51 is formed. B1, B1,
.. and the scrap portion B2 are misaligned due to bending, so that they can be easily separated in the gap 7 between the drums 2 and 3.

Further, the upstream conveyor 52 of the belt conveyor 51 moves downward due to the contraction operation of the cylinder 69, and a large number of the stacked sheet bodies B, B, ... Are stacked on the lower surface of the belt 53. Since it is adsorbed and conveyed in order from B, a large number of stacked sheet bodies B,
It is possible to automatically transfer B, ... To the conveyor 51.

Furthermore, the scrap portion B2 separated in the gap 7 between the drums 2 and 3 is a cutting device 86 below the drums 2 and 3.
Since it is cut into small pieces with the cutters 87 and 88 of
2 can be processed automatically.

Further, the molding portion B1 which has exited from the suction range of the drums 2 and 3 through the gap 7 between the drums 2 and 3 is pushed by the air blown from the blowout duct 13 to the outside of the drum 2 through the suction portion 2a. As a result, the molding section B1 can be separated from the upper drum 2 without fail because it is forcibly separated from the suction section 2a.

When the thickness of the sheet body B is changed, the operation handle 46 of the drum gap adjusting mechanism 29 is rotated to rotate the transmission shaft 33, and the eccentric rings 34,
The brackets 30 and 30 are swung around the support pins 32 and 32 via the rod members 37 and 37 by the eccentric motion of the support member 34, thereby raising and lowering the support shaft 4 of the upper drum 2 to move the upper drum 2 to the lower side. The drum 7 may be brought into contact with or separated from the drum 3, and the gap 7 between the drums 2 and 3 may be adjusted to a required size. That is, even if the thickness of the sheet body B is changed, it is possible to easily cope with the change and perform the separating operation. Further, when the adjustment is insufficient only by the amount of eccentricity of the eccentric ring 34, the length of each rod member 37 may be adjusted.

In the above embodiment, the suction portions 2a and 3a are formed over the entire outer peripheral walls of the drums 2 and 3, but the suction portions 2a and 3a may be formed only on a part of the outer periphery of the drums 2 and 3. But,
Forming parts B1 ', B1', ... and scrap parts B2 'that are fixed in advance
The fixed position of can be selected arbitrarily and the large sheet B
Therefore, it is preferable to form the suction portions 2a and 3a on the entire outer circumference of the drums 2 and 3 as in the above-described embodiment in view of the problem.

Further, in the above embodiment, the upstream conveyor 5
Although 2 is a swing type in which only the starting end side moves up and down, it may be a type in which the entire body moves up and down to adsorb the sheet B, and the same action and effect can be obtained.

Further, in the above embodiment, the size of the gap 7 between the drums 2 and 3 is changed by moving the upper drum 2 up and down, but the lower drum 3 may be moved up and down. Alternatively, both the drums 2 and 3 can be raised and lowered.

In the above embodiment, the molded portion B1 of the sheet body B is the body portion and the scrap portion B2 is the end portion. In the present invention, the main body (molded portion) and the window are removed from the sheet body without the window. It can also be applied when separating a part (waste part).

[0067]

As described above, according to the first or second aspect of the present invention, when separating the molding portion and the scrap portion from the punched sheet body in which the molding portion and the scrap portion are divided, A pair of hollow drums, which have negative pressure in only the suction range, which is a portion facing each other, and which have suction portions formed of a large number of suction holes capable of sucking the sheet body on the outer peripheral wall, are rotatably provided in synchronization with each other. The molding part of the sheet body is fixed to the suction part on the outer periphery of the drum, and the scrap part is fixed to the suction part on the other drum's outer periphery. Each of the sheet members is supplied one by one, and the molded portion of the sheet member is adsorbed to a portion other than the scrap portion of the drum suction portion to which the scrap portion is fixed, while the scrap portion is fixed to the molding portion. Drum suction part By adsorbing to a part other than the forming part, by fixing the scrap part and the forming part as the masking member from the first sheet body to the adsorption part surface of each drum, the forming part and the forming part from the subsequent sheet body The scrap part can be automatically separated, eliminating the need for a separate mold as in the past, and the molded part and scrap part of the sheet body can be separated to achieve cost reduction and generalization. You can Further, each time the sheet body is separated, only the first sheet body needs to be used as a consumable item, so that a separate type storage space is not required and the space can be saved for storage.

According to the invention of claim 3, since the suction portion is formed over the entire circumference of the outer peripheral wall of each drum, the scrap portion and the molding portion as the masking member can be fixed at arbitrary positions along the entire circumference of the drum. , The usability can be improved.

According to the fourth aspect of the invention, the sheet body supplying means for supplying the sheet body to the gap between the drums is provided.
By using a belt conveyor that sucks and conveys the sheet body to the belt surface by negative pressure suction, the sheet body is conveyed one by one while preventing the positional displacement, and the suction portion moves to the gap between the drums. It can be supplied accurately in synchronization with.

According to the fifth aspect of the invention, the sheet conveyed by the belt conveyer is provided with a folding means for folding the sheet along a fold line perpendicular to the conveying direction. The boundary part between the molded part and the scrap part of the body can be displaced in advance so that they can be easily separated in the gap between the drums.

According to the sixth aspect of the present invention, an upstream conveyor is provided at a part of the belt conveyor so that the sheet can be adsorbed to the lower surface thereof and is vertically moved by the elevating means. The upstream conveyor is moved downward. At this time, since the uppermost sheet body of the many stacked sheet bodies is sucked and conveyed, transfer of the stacked many sheet bodies to a conveyor one by one Can be done automatically.

According to the invention of claim 7, since the cutting means for cutting the scrap portion separated in the gap between the two drums is arranged below the drum, the scrap portion separated in the gap between the two drums is arranged. Can be cut by a cutting means, and the processing can be automated.

According to the eighth aspect of the present invention, the gap between both drums can be adjusted, so that even if the thickness of the sheet body is changed, it can be easily dealt with.

According to the invention of claim 9, air is blown out to the outside of the drum from the suction portion in the vicinity of the rear side of the suction range of at least one drum in the drum rotation direction. Can be reliably separated from the drum.

[Brief description of drawings]

FIG. 1 is a front view showing a main structure of a separation device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a front view showing the overall configuration of a separation device.

FIG. 4 is an explanatory view showing an operation of separating the molding portion and the scrap portion from the sheet body.

FIG. 5 is a development view of a part of a drum in which a scrap portion and a molding portion of a sheet body serving as a masking member are fixed to suction portions, as seen from a gap side between the drums.

FIG. 6 is a perspective view of a sheet body in which a molding portion and a scrap portion are punched out.

[Explanation of symbols]

 A Separator 2, 3 Drums 2a, 3a Adsorption part 7 Gap 11 Suction pump (negative pressure generating means) 16 Blower pump (air blowing means) 24 Motor (driving means) 29 Drum gap adjusting mechanism (drum gap adjusting means) 30 Bracket 32 support pin 34 eccentric ring 46 operation handle 51 belt conveyor (sheet body supplying means) 52 upstream conveyor 53 conveyor belt 69 cylinder (elevating means) 71 downstream conveyor 73 second driven roller 76 conveyor belt 81 folding mechanism 82 folding Roller 83 Presser roller 86 Cutting device (cutting means) B Sheet body B1 Forming part B1 'Forming part fixed to drum B2 Waste part B2' Waste part fixed to drum S Loading space

Claims (9)

[Claims] 1. A separation method for separating a molding portion and a scrap portion from a punched sheet body in which a molding portion and a scrap portion are partitioned, and a gap is provided through which at least two superposed sheet bodies can pass. A suction unit is provided rotatably with rotation axes parallel to each other in the opened state, and at least a part of the outer peripheral wall is capable of sucking and adsorbing the sheet body through a large number of suction holes to the inside. A pair of hollow drums and a predetermined suction range facing the opposing drum of the inside of each of the drums are set to a negative pressure state so that the sheet body is sucked by the suction portion in the suction range. A pressure generating means and a driving means for rotating both the drums in the opposite directions in synchronization with each other so that the suction portions of the drums face each other in the gap between the drums are prepared. While fixing the scrap part, the other The forming unit is fixed to the suction unit on the surface of the drum, and when the suction units of the drums are in positions facing each other in the gap between the drums, the sheet member is supplied to the gap between the drums in synchronization with the suction unit. The forming part of the sheet body is sucked by a suction part other than the scrap part fixed to the suction part of the one drum surface, while the scrap part of the sheet body is fixed to the suction part of the other drum surface. A method for separating a molding part and a scrap part in a sheet body, characterized in that the molding part and the scrap part are separated from the sheet body by adsorbing by a suction part other than the above. 2. A separating device for separating a molding portion and a scrap portion from a punched sheet body in which a molding portion and a scrap portion are partitioned, and at least two superposed sheet bodies can pass through. Has a suction unit that is rotatably provided with rotation axes that are parallel to each other in a state where various gaps are provided, and that at least a part of the outer peripheral wall can suck and suck the sheet body to the inside through a number of suction holes. A pair of hollow drums, a driving unit that rotates the two drums in opposite directions in synchronization with each other so that the suction portions of the drums face each other in a gap between the drums, and a pair of opposing drums inside the drums. Negative pressure generating means for bringing only a predetermined suction range facing each other into a negative pressure state so that the sheet body is sucked by the suction part in the suction range, and the suction part of each drum faces each other in the gap between both drums. Same as when And a sheet body supply means for supplying the sheet body to the gap between the both drums, and the negative pressure generating means forms a forming portion of the sheet body supplied to the gap between the drums by the sheet body supply means. , The suction portion other than the scraping portion that is fixed in advance to the suction portion on one drum surface, while the suction portion other than the forming portion that is fixed in advance to the suction portion on the other drum surface while sucking the scrap portion of the sheet body The device for separating a molding part and a scrap part in a sheet body, wherein the separating device separates the molding part and the scrap part from the sheet body. 3. The forming unit and the scrap portion separating apparatus for a sheet according to claim 2, wherein the adsorbing section is formed over the entire circumference of each drum outer peripheral wall. And scrap separation device. 4. The separating device for a forming part and a scrap part in a sheet body according to claim 2 or 3, wherein the sheet body supplying means is a belt conveyer for sucking and conveying the sheet body on the belt surface by negative pressure suction. A separating device for a molding portion and a scrap portion in a sheet body, characterized in that: 5. The apparatus for separating a forming part and a scrap part in a sheet body according to claim 4, wherein a folding means for folding the sheet body along a fold line perpendicular to the conveying direction is provided in the middle of the belt conveyor. A device for separating a molding portion and a scrap portion in a characteristic sheet body. 6. The separating device for the forming part and the scrap part in the sheet body according to claim 4 or 5, wherein the belt conveyor is an upstream side conveyor configured to adsorb the sheet body on a lower surface thereof and vertically moved by an elevating means. Having the upstream conveyor, when moved down, is configured to adsorb the uppermost sheet body in a large number of stacked sheet bodies, the forming portion and the scrap portion in the sheet body. Separation device. 7. The device for separating a forming part and a scrap part in a sheet body according to claim 2, 3 or 4, wherein the scrap part separated by a gap between both drums is cut into strips below the drum. A device for separating a molding portion and a scrap portion in a sheet body, characterized in that means is provided. 8. The sheet body according to claim 2, 3 or 4, wherein the device for separating a molding portion and a scrap portion is provided with a drum gap adjusting means capable of adjusting a gap between both drums. Separation device for forming part and scrap part. 9. The separating device for a forming part and a scrap part in a sheet body according to claim 2, 3 or 4, wherein air is blown to the outside of the drum from an adsorbing part in the vicinity of the rear side in the drum rotation direction of the suction range of at least one of the drums. An apparatus for separating a molding portion and a scrap portion in a sheet body, which is provided with air blowing means for blowing out air.