JPH08243651A - Equipment for detaching product - Google Patents

Abstract

PURPOSE: To reduce the detaching time and to surely detach a product by achieving the detachment of the product from a sheet where the outside of the product is machined by a punch press leaving a micro-joint. CONSTITUTION: A plurality of grippers 15 to hold each side part of a sheet W, and a gripper vibrating equipment 35 which repeatedly move the grippers 15 in the vertical direction are provided. The gripper 15 is provided with the fixing side gripper group G1 to hold one end of the sheet W and the moving side gripper group G2 to hold the other side part. Each gripper of the moving side gripper group G2 is installed on a gripper advancing/retracting table to allow the advancement and refraction. A sheet punching equipment 17 to punch the sheet W to be held by the gripper 15, an unloader to pull in the sheet W, and an advancing/retracting table 16 to guide the sheet W during the pull-in operation are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product separating device for separating a micro-joint from a plate material which has been subjected to an outer shape processing by leaving a micro-joint in a plate material processing machine such as a turret punch press.

[0002]

2. Description of the Related Art When punching a plurality of products from a large-sized plate material with a punch press machine or the like, the outer shape of the product is punched out by leaving a micro joint in order to improve the processing efficiency. , Separate the micro joint later. This detaching work is usually performed manually after the plate material is discharged out of the machine. However, since this work is hard work, automation is desired. Some examples have been proposed in which the disconnection work is automated, but the one in which the micro joints are sequentially cut one by one takes a long time for total cutting. Further, a method has been proposed in which plate members are repeatedly stressed to separate each part at the same time, but reliable separation is difficult and a defective separation part may occur.

An object of the present invention is to provide a product separating device which can shorten the separating time. Another object of the present invention is to allow a plate material having an arbitrary width to be cut off. Yet another object of the present invention is to
The purpose is to enable reliable separation even with thick plate materials.

[0004]

SUMMARY OF THE INVENTION A product cutting device of the present invention is a device for cutting a microjoint of a plate material which has been subjected to an outer shape processing of a plate-cutting product while leaving a microjoint. A plurality of grippers for gripping and a gripper vibrating device for repeatedly moving up and down the grippers on both sides are provided. In this configuration, a fixed-side gripper group in which a plurality of grippers that hold one side of the plate material are arranged, and a moving-side gripper group in which a plurality of grippers that hold the other side of the plate material are arranged are provided. It is preferable to provide a gripper advancing / retreating device for advancing / retreating the gripper group facing the fixed gripper group. Also, a plate material striking device for striking the plate material gripped by the gripper may be provided.

[0005]

The plate material having the micro joints is gripped at both sides by the grippers, and these grippers at both sides are repeatedly moved up and down by the gripper vibrating device. As a result, the microjoints of the plate material are repeatedly stressed to cause metal fatigue and are cut. Since the grippers on both sides are rotated up and down, the amount of deformation that occurs in the plate material is large compared to the case where only one gripper is operated, and reliable separation can be performed.
When the fixed gripper group and the movable gripper group are provided, the micro joint can be detached even for plate materials of various width dimensions by advancing and retracting the movable gripper group according to the width dimension of the plate material. . Since one of the gripper groups is fixed in position, positioning is easy, and only one gripper advancing / retracting device is required. Since a plurality of grippers are arranged in each gripper group, more reliable separation can be performed. When a plate material striking device is provided, it is possible to perform reliable separation by striking the plate material before and after the vertical movement of the gripper for a plate material such as a thick plate material where it is difficult to separate the micro joint. it can.

[0006]

An embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a plate material processing line in which a product separating device 1 according to this embodiment is installed. The product separating device 1 is a device for separating the product Wa from the processed plate material W of the planed product Wa leaving the micro joint J (FIG. 18) in the plate processing machine 3, and is equipped with an unloader 2 They are arranged side by side on one side of the processing machine 3 via an auxiliary table 4. The plate material processing machine 3 includes a turret punch press. An auxiliary table 5 is provided on the other side of the plate processing machine 3.
A loader 6 is installed via the. The line in which the loader 6, the plate material processing machine 3, and the product separating device 1 are installed in parallel is installed in parallel with the automated warehouse 7, and the plate material to be used as a pallet is placed on a rail 8 extending from the automated warehouse 7 to the loader 6. A material cart 9 loaded via the above is installed so that it can travel. Further, on the rail 10 extending from the automated warehouse 7 under the product separating device 1, the product cart 11 and the residual material cart 1 are provided.
2 and 2 are installed so that they can run.

As shown in the side view of FIG. 2, the product truck 11
The product box 13 is placed via the pallet P1,
The plate material product Wa separated by the product separating device 1 is housed in the product box 13. The residual material truck 12 has a pantograph-type lifting platform 14, and a skeleton S, which is a residual material obtained by cutting out a product Wa from a material plate W, is pallet P2 and a wooden frame (not shown) on the lifting platform 14. ) Via. The product cart 11 and the residual material cart 12 are selectively positioned in the product separating device 1.
The position shown by the solid line in FIG.
The standby positions are 1 and 12. The position indicated by the chain line is the standby position for each of the trucks 11 and 12 during manual operation. In this embodiment, the product carriage 11 and the residual material carriage 12 are configured as one carriage which is integrated with each other as shown in FIG.
A combination of both bogies 11 and 12 as independent bogies,
Alternatively, both carriages 11 and 12 may be completely independent and individually operable. The pallets P1 and P2 are iron pallets having wheels as shown in FIG.
Carrying in and out of the automated warehouse 7 is carried out for each of P1 and P2.

As shown in the side view of FIG. 3, the product separating device 1 sandwiches both sides of a plate material W with grippers 15 and 15 and separates the product Wa by rotating the grippers 15 up and down. A table 16 on which the table W is placed, and the unloader 2 for drawing the plate material W onto the table 16,
A plate striking device 1 used for a plate W that is difficult to separate
7 and 7. The table 16 is retractable to the front side of the frame 18 of the product separating device 1 as shown by the chain line in the figure.

The unloader 2 is installed on the rails 19 and 19 provided in the upper portion of the frame 1 along the carrying-in direction (X direction) so that the unloader 2 can travel freely by wheels 20, and as shown in FIGS.
A plurality of unloader grippers 21 arranged in the width direction (Y direction)
Are respectively provided via hanging arms 22. Each hanging arm 22 is rotatably supported at its base end and is rotatably driven by a cylinder device 23 serving as a retracting device between an upper retracted position shown by a chain line in FIG. 8 and a use position shown by a solid line. . The unrotor gripper 21 is opened and closed by a cylinder device and a spring member to grip the plate material W.
Each hanging arm 22 has a photoelectric switch 24 for collision prevention.
Is installed.

As shown in FIGS. 5 and 6, the gripper 1
5 is a fixed-side gripper group G1 that grips one side of the plate material W.
And a moving-side gripper group G2 that grips the other side of the plate material W. Each gripper 15 of the fixed side gripper group G1
Are mounted in a row on a gripper mounting frame 25 provided on one side of the frame 18 along the carry-in direction X, and each gripper 15 of the moving-side gripper group G2 is aligned in a row on the gripper mounting frame 25 of the gripper advancing / retracting base 26. Installed.

The gripper advancing / retracting table 26 has a pair of rails 42, 4 provided at both ends of the frame 18 along the width direction Y.
The pinions 4 on both sides, which are installed on the rack 2 so as to be movable back and forth through linear motion bearings and mesh with the racks 43 parallel to the rails 42.
It is driven forwards and backwards by rotating 4 times. The rail 42 and the rack 43 are provided on the upper and lower surfaces of the frame member 18 a in the width direction of the frame 18. The pinions 44, 44 on both sides are rotated by the self-propelled motor 45, which is an advancing / retreating drive device installed in the center of the gripper advancing / retreating table 26, to extend the rotation transmitting shaft 4 to both sides.
6 and a winding transmission mechanism 47 such as a timing belt, which is attached to both ends of the transmission 6, and is synchronously driven. As shown in FIG. 4, a forward end (shown by a solid line) of the gripper advance / retreat base 26 and a retracted end (shown by a chain line) which is a standby position are provided with a dog 48 provided on the gripper advance / retreat base 26 and a limit switch. It is regulated by detecting with the forward end detection switch 49 and the backward end detection switch 50. Further, the gripper advancing / retracting table 26 is provided with a disc type brake 80 and an electromagnetic brake (not shown), and reliably prevents the gripper 15 from moving together with the gripper advancing / retracting table 26 during vibration. A reflection plate 51 to be detected by the photoelectric sensor 24 (FIG. 9) of the unloader gripper 21 is attached to the upper end of the gripper advancing / retracting table 26 in the plate material carrying-in direction, and the unloader 2 is stopped in response to the detection. Therefore, the interference between the unloader 2 and the gripper advance / retreat base 26 is prevented.

Each gripper 15 of each gripper group G1, G2
14 is enlarged and shown in FIGS. 14 and 15, the upper jaw 15a is vertically opened and closed by an opening and closing cylinder 29 which is attached to the front surface of the swing member 28 and which is an opening and closing drive device.
The plate material W is gripped between the upper jaw 15a and the fixed lower jaw 15b. The lower jaw 15b is formed in a chevron shape as shown in FIG. 15 (B) so that the plate material W can be easily guided during loading. The swinging member 28 is supported rotatably up and down around a support shaft 30 provided between the pair of brackets 36a, 36a of the bracket base 36, and has a cam contacting member 31, on the upper and lower sides of the rear portion.
31 is attached. These cam contact members 31 are
The upper and lower surfaces of a circular eccentric cam 33 attached to a cam rotation shaft 32 parallel to the support shaft 30 come into contact with each other, and the rotation of the eccentric cam 33 causes the gripper 15 to rotate up and down around the support shaft 30 together with the swing member 28. To be made. The chain lines in FIG. 15A indicate the positions of the upper and lower pivot ends of the rocking member 28. The eccentric cam 33 has a rolling bearing 33a on the outer peripheral portion as shown in the cross section in FIG. 14, and the outer ring of this bearing 33a contacts the cam contact member 31. The cam rotation shaft 32 is rotatably supported on both sides of each eccentric cam 33 by a bearing unit 36b.
6b is attached to the gripper attachment frame 25 via the bracket base 36 together with the bracket 36a.

As shown in FIGS. 5 and 6, one cam rotating shaft 32 is provided in each of the fixed side gripper group G1 and the moving side gripper group G2 across each gripper 15, and both of them are decelerated at one end. It is rotationally driven by a motor 34 with a machine. The motor 34 and the eccentric cam 33 constitute a gripper vibrating device 35. As shown in an enlarged view in FIG. 7, the cam rotation shaft 32 is provided with a deceleration dog 38 and a stop dog 39 at one end via a disc 37, and a deceleration sensor including a proximity switch for detecting the dogs 38 and 39. The gripper mounting frame 25 includes the 40 and the stop sensor 41.
It is provided in. The vertical rotation of the gripper 15 is controlled by rotating the cam rotation shaft 32 and repeating the vertical rotation of the gripper 15, and when the deceleration dog 38 is detected after the controller-side stop command of the gripper vertical movement, the motor 34 rotates. Is decelerated and the drive of the motor 34 is stopped when the stop dog 39 is detected. Each gripper 15 at the time of this stop
Eccentric cam 33 and each dog 38, 3
Adjust the mounting position of 9 and so on.

As shown in FIGS. 9 to 11, the table 16 is for supporting and supporting the plate material W drawn by the unloader 2, and a large number of free bearings 52 are provided on the upper surface thereof. The table 16 has table legs 16a at both ends, and is installed so as to be movable back and forth on a pair of rails 53, 53 via rollers 52 provided on each table leg 16a. The rail 53 is provided on an auxiliary frame 54 attached to the frame 18. The auxiliary frame 54 includes
As schematically shown in FIG. 3, sprockets 55, 55 are provided at the front and rear in the width direction, an endless chain 56 is hooked, and the chain 56 is connected to the table leg 16a by a connecting portion 57. The sprocket 55 is another winding type transmission mechanism 59.
And the rotation transmission shaft 83 (FIG. 11), and is connected to the motor 58.
Is moved back and forth from a use position located immediately below the gripper 15 in the frame 18 to a retracted position outside the frame 18. A table advancing / retreating device 59 is configured by the motor 58, the chain 56, and the like. A full load detection switch 81, which is a photoelectric switch for detecting the full load of the product box 13 at a level slightly lower than the lower surface of the table 16, is provided in the frame 18.

As shown in FIGS. 12 and 10, the plate material striking device 17 comprises a striking device advancing / retracting table 61 and a plurality of striking heads 62 arranged in a line. Impact device advancing / retracting table 61
Is a rail 4 on both sides for guiding the gripper advance / retreat base 26.
2 and 42 are installed side by side with the gripper advancing / retracting table 26 so as to be able to move back and forth. The driving of the striking device advancing / retreating table 61 is performed in the same manner as the table 16 by the endless chain 63 shown in FIG. The chain 63 includes front and rear sprockets 64,
It is hung between 64 and is connected to the striking device advancing / retracting table 61 at a connecting portion 65. The sprocket 64 is connected to a motor 67 via a winding type transmission mechanism 66 and a rotation transmission shaft 82 (FIG. 12B). The motor 67, the chain 63, and the like constitute a striking device advancing / retreating device 68. Instead of the chains 56 and 63, a winding transmission mechanism such as a timing belt may be used. As shown in FIG. 12 (A), the striking device advancing / retracting table 61 has an elevating frame 70 installed between the advancing / retreating table main bodies 61a, 61a at both ends via an elevating device 69. A striking head 62 is provided. The lifting device 69
It consists of a lifting cylinder and a guide rod.

Each striking head 62 is shown in FIG.
As shown in an enlarged view in (B), a striking shaft 72 is provided on a tubular elevating guide 71 provided on the elevating frame 70, and the striking shaft 72 is provided.
A striking spring member 73 is provided between the leading end member 72a and the elevating guide 71. At the upper part of the striking shaft 72,
A flange-shaped stopper 72c that engages with the upper surface of the elevating guide 71 and a circumferential groove-shaped engaging recess 72b are provided, and the shaft-penetrating member 75 provided in the lifting frame 74 has an engaging recess 72.
An elastic engagement member 76 is provided that engages with and disengages from the.
The elastic engagement member 76 is a ball plunger that elastically engages a ball that engages with the engagement recess 72 with a spring member. A hitting member 77 is provided above the hitting shaft 72 to hit the upper end of the hitting shaft 72. The contact member 77 is composed of an adjusting screw and is attached to the upper flange of the elevating frame 70.

The lifting frame 74 is provided over a plurality of striking heads 62 as shown in FIG. 12, and is divided into a plurality of striking heads 62 in a row. Each lifting frame 74 is driven to be lifted by a plurality of lifting devices 78 including cylinder devices. These lifting devices 7
8 and the spring members 73 and the like in each striking head 62,
The striking drive mechanism 79 is configured.

The operation of the above configuration will be described. The plate material processing machine 3 in FIG. 1 performs outer shape processing of a plurality of plate cutting products Wa on a large-sized plate material W as a raw material by nibbling while leaving the micro joints J as shown in FIG. H indicates a punch hole.

In the product separating device 1, as shown in FIG. 17, the following operations a to j are performed. a) As shown in FIG. 7A, the gripper 15 on the moving side is
It advances from the origin position shown by the solid line to the gripping position shown by the chain line according to the plate width, and waits. b) The table 16 moves from the retracted position shown by the solid line to the use position shown by the chain line. c) As shown in FIG. 7B, the unloader 2 has the plate material processing machine 3
The plate material W on the auxiliary table 4 is gripped, and the plate material W travels in the drawing direction to draw the plate material W to a predetermined position on the table 16. At this time, each gripper 15 is kept open, and both side edges of the plate material W are moved inside the gripper 15. d) Close the grippers 15 on the fixed side and the movable side, and hold the plate material W. e) The unloader 2 opens the unloader gripper 21 and travels to the plate material processing machine side, and at the same time, the table 16 retreats to the retracted position (FIG. 17C).

F) The plate W is vibrated by the vertical movement of the gripper 15 to drop the product Wa into the product box 13 (FIGS. 17D and 17E). The vertical movement of the gripper 15 is performed by rotating the eccentric cam 33 and vertically rotating it around the support shaft 30 together with the swinging member 28. The eccentric cam 33 is continuously rotated for several rotations, and the gripper 15 is repeatedly rotated up and down.
The fixed gripper 15 and the movable gripper 15 that face each other
It is preferable to rotate up and down so as to face upside down as shown in FIGS. 17D and 17E. By vibrating the plate material W by the vertical movement of the gripper 15 in this way, a bending load and a tensile load are repeatedly applied to the micro joint J of the plate material W, the micro joint J is broken due to metal fatigue, and the product Wa remains in the surrounding area. Material skeleton S
And separated. Since the grippers 15 move up and down on both sides of the plate material W, effective separation can be performed as compared with driving on only one side. Further, since only the vertical movement is applied to the plate material W, the separated portion of the micro joint J becomes clean. g) When the plate material W is thick, for example, 1.7 to
In the case of a 3.2 mm thick iron plate or the like, as shown in FIGS. 17 (F) and 17 (G), both ends of the plate material W in the width direction are sequentially hit by the plate material hitting device 17. The both ends are struck because the vibration of the plate material W is large at the center in the width direction and is small at both ends, so that it is difficult to cut the micro joints J at both ends. By striking in this way, even in the case of a thick plate material W, the entire micro joint J can be reliably separated. When the plate material W is thin, the striking process is omitted. Whether or not to strike is selected by an operator's instruction or a machining program instruction.

The striking operation is performed as shown in FIG. The striking shaft 72 is normally urged by the spring member 72 to stop the stopper 72.
c is at the lower end that engages with the elevating guide 71. When the impact is started, the lifting frame 74 is lifted by the lifting device 78 shown in FIG. Thereby, the elastic engaging member 76 provided on the shaft penetrating member 75 of the lifting frame 74 engages with the engaging recess 72b to lift the striking shaft 72 against the biasing force of the spring member 73. The upper end of the lifting shaft 72 is the contact member 77.
When it hits the lower surface of, the elastic engaging member 76 is disengaged from the engaging recess 72b because it cannot rise any further. Therefore, only the lifting frame 74 rises, and the striking shaft 72 moves to the spring member 73.
It rapidly descends due to its restoring force and its own weight, and strikes the plate material W. In addition, the elevating frame 70 is arranged so that the striking shaft 72 reaches the plate material W.
Before or during the striking operation, it is lowered by the elevating frame 69 (FIG. 12).

H) After the above-mentioned vibration of the gripper 15 and the impact as necessary, the disc brake 80 (FIG. 4) of the gripper advancing / retreating base 26 of the moving-side gripper 15 and the electromagnetic brake are released to make the advancing / retracting state. . As a result, when the skeleton S of the plate material W gripped by the grippers 15 on both sides is in a bent state, the skeleton S extends straight by its own elastic restoring force, and erroneous detection by the full load detection device 81 (FIG. 11) is prevented. It i) The product truck 11 in the product separating device 1 is replaced with the residual material truck 1
Replace with 2 (FIG. 17 (H)). j) After the fixed gripper 15 is opened, the movable gripper 15 is slightly retracted (solid line position) for a predetermined time (for example, 2).
After the elapse of the timer time of (sec), the gripper 15 on the moving side is opened and moved to the backward end. As a result, the skeleton S is dropped and loaded on the residual material truck 12. In this way, the product separation work is completed.

18 (A) to 18 (C) show examples of control of the positional relationship between the grippers 15 when the grippers 15 are separated by vibration. In the figure, the downward gripper 15 is shown by diagonal lines, and the upward gripper 15 is shown by white outline. The example of (A) is an example in which the rotational phase of the gripper 15 is the same for each of the fixed-side and movable-side gripper groups G1 and G2. The example of (B) is an example in which the grippers 15 in the gripper groups G1 and G2 are rotated so that they are alternately turned upside down. When alternately moved up and down in this way, each part of the plate material W is curved as shown in FIG. The example in FIG. 18C is an example in which the adjacent grippers 15 in the gripper groups G1 and G2 are driven at the same angle and the grippers 15 facing each other and the adjacent grippers 15 are driven upside down. . Such various operations can be selected by individually adjusting the mounting angle of the eccentric cam 33 with respect to the cam rotation shaft 32.

In this way, by driving the grippers 15 facing each other on both sides of the plate material W upside down, the plate material W does not come off from the gripper 15 and the plate material W can be made to exert a tensile force. Effective vibration can be given and separation is ensured. In addition to this, each motor 3
Even if the vibration cycle of the gripper 15 is made different between the fixed side and the moving side by setting the rotation speeds of 4, 34, effective separation can be performed. The fixed-side and movable-side grippers 15 may be vibrated vertically in the same direction.

In this way, this product separating device can separate each product Wa of one plate material W at the same time,
The separation time is shortened, and moreover, the grippers 15 on both sides facing each other can be moved up and down for reliable separation. Further, by moving the gripper advancing / retracting table 26, the plate material W having an arbitrary width can be separated.

In the above operation, the skeleton S is loaded on the residual material truck 12, but the skeleton S may be stored in the product box 13. Further, although the fixed side and the movable side of the individual grippers 15 are opposed to each other in the above embodiment, the positions of the gripper 15 may be shifted between the fixed side and the movable side.

[0027]

The product separating device of the present invention is provided with a plurality of grippers for gripping both sides of the plate and a gripper vibrating device for repeatedly moving the grippers on both sides up and down. Separation can be performed at the same time, and the separation time can be shortened, and a large deformation can be applied to the plate material by the operation of the grippers on both sides, so that reliable separation can be performed. In the case of the second aspect of the invention, since the fixed side gripper group and the movable side gripper group are provided, it is possible to separate even plate materials of various width dimensions. Further, since a plurality of grippers are provided in each group, more reliable separation can be performed. In the case of the third aspect of the invention, since the plate striking device is provided, it is possible to surely separate a plate member such as a thick plate member in which the micro joint is difficult to separate.

[Brief description of drawings]

FIG. 1 is a plan view of a plate material processing line in which a product separating device according to an embodiment of the present invention is installed.

FIG. 2 is a schematic side view showing the relationship between the product separating device and each dolly.

FIG. 3 is a cutaway side view of the product separating device.

FIG. 4 is a partial side view showing a peripheral portion of a gripper advancing / retracting table of the product separating device.

FIG. 5 is a plan view of the product separating device.

FIG. 6 is a partially omitted front view of the product separating device.

FIG. 7 is an enlarged view of a portion VII of FIG.

FIG. 8 is an enlarged side view of the unloader.

9 is a partially omitted front view of the product separating device, omitting a part different from FIG. 6.

FIG. 10 is a partially omitted plan view mainly showing a table portion and a plate material striking device of the product separating device.

FIG. 11 is a partially omitted explanatory view mainly showing a table portion of the product separating device.

FIG. 12 is a front view showing separately an upper part and a lower part of the plate striking device.

FIG. 13 is a side view of a conceptual configuration showing an advancing / retreating drive system of a table and a plate material striking device.

FIG. 14 is an enlarged cutaway front view showing an eccentric cam portion for driving the gripper.

FIG. 15 is an enlarged side view of a peripheral portion of a gripper, an enlarged front view, and an enlarged side view of an eccentric cam thereof.

FIG. 16 is an operation explanatory view of the striking head of the plate striking device and a side view of the lifting device.

FIG. 17 is an explanatory diagram of the overall operation of the product separating device.

FIG. 18 is an explanatory view showing various operation examples of vertical movement by the gripper.

[Explanation of symbols]

1 ... Product separation device, 2 ... Unloader, 3 ... Plate processing machine, 10 ... Rail, 11 ... Product dolly, 12 ... Remaining material dolly,
13 ... Product box, 15 ... Gripper, 16 ... Table, 16 ... Table leg, 17 ... Plate hitting device, 18 ... Frame, 19 ... Rail, 21 ... Unloader gripper, 2
5 ... Gripper mounting frame, 26 ... Gripper advancing / retracting table, 28 ... Oscillating member, 30 ... Support shaft, 32 ... Cam rotating shaft, 33 ... Eccentric cam, 34 ... Motor, 35 ... Gripper vibrating device, 42 ... Rail, 53 ... Rails, 56 ... Chain, 59 ... Table advancing / retracting device, 61 ... Striking device advancing / retracting table, 62 ... Striking head,
63 ... Chain, 67 ... Motor, 68 ... Strike device advancing / retracting device, 69 ... Lifting device, 70 ... Lifting frame, 72 ... Strike shaft, 7
3 ... Spring member, 74 ... Lifting frame, 76 ... Elastic engagement member, 79 ... Strike drive mechanism, G1 ... Fixed side gripper group, G
2 ... Moving side gripper group, H ... Hole, J ... Micro joint, S ... Skeleton, W ... Plate material, Wa ... Product

Claims (3)

[Claims] 1. A product cutting device for cutting a microjoint of a plate material that has been subjected to an external shape processing of a plate cutting product leaving a microjoint, and a plurality of grippers for respectively gripping both side parts of the plate material, and the both sides. Product separation device with a gripper vibrating device that repeatedly moves the gripper of the part up and down. 2. A moving-side gripper group provided with a fixed-side gripper group in which a plurality of grippers for holding one side portion of the plate material are arranged, and a moving-side gripper group in which a plurality of grippers for holding the other side portion of the plate material are arranged. 2. The product separating device according to claim 1, further comprising a gripper advancing / retreating device for advancing / retreating the gripper group facing the fixed gripper group. 3. The product cutting device according to claim 1, further comprising a plate material striking device for striking the plate material gripped by the gripper.