JP2588877B2 - Shearing machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a shearing machine, and more particularly, to a shearing machine that can quickly trim a plate material.

[Prior Art] Conventionally, when a shearing machine, which is an example of a plate material processing machine, is first processed to perform edge cutting of an end portion of the plate material, one side edge of the plate material is positioned on one side of a table upper surface in front of a processing position. It is pressed by a pressing member so as to hit the side gauge provided above. In this state, the plate material is moved in the direction of the processing position where the plate material is processed, and abuts against a positioning stopper member provided so as to be able to protrude and retract behind the fixed lower blade. Next, after confirming that the edge of the plate material is abutted against the positioning stopper member, the slide that supports the movable upper blade at the lower portion is moved up and down to cut the edge of the plate material.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional plate edge cutting method,
Although one side edge of the plate material is abutted against the side gauge, it is pressed with a pressing member attached to the table opposite to the side gauge, but when the width of the plate material changes, the mounting of the pressing member or the position is performed. There is a problem that the change takes a considerable amount of time.

When the plate is thin and the dimension of the plate in the direction perpendicular to the direction in which the plate is transported is large, it is difficult to press with a pressing member. For this reason, it is difficult to accurately move the plate material in the transfer direction, so that accurate trimming cannot be performed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a shearing machine capable of performing trimming of a plate accurately and simultaneously with positioning of the plate.

[Means for Solving the Problems] In view of the above-described conventional problems, the present invention provides a fixed lower blade provided on the rear side of a table for supporting a plate material, and a plate material in cooperation with the fixed lower blade. A vertically movable slide having a movable upper blade for performing shearing, and a back gauge device having a butting surface for abutting and positioning an edge of a plate material transferred rearward from the table. In the shearing machine, a plurality of magnet rollers capable of magnetically attaching one side edge of a plate material are rotatably provided on one side of the table at a distance in the front-rear direction, and the slide roller is disposed at a position below the movable upper blade. A slide block is provided on one side so as to be movable and positionable in the front-rear direction. One side and the vicinity of the upper end of the rear edge of the plate material which is magnetically attached to the magnet roller and transferred in the rear direction are provided on the slide block. Contact A positioning stopper member is provided, and the positioning stopper member is provided so as to be movable between two positions, that is, a position where the plate member can be brought into contact and a retracted position where the contact is avoided, and an operation for moving the positioning stopper member. A contact detection sensor that outputs a detection signal to a control device that drives a driving device that moves the slide up and down when detecting that the plate material has come into contact with the positioning stopper. Characteristic shearing machine.

[Operation] In the above configuration, when trimming the plate material, the slide block is positioned in the front-rear direction corresponding to the trimming dimension, and the stopper member is held at a position where it can be abutted. Then, when one side edge of the plate on the table is pressed against the plurality of magnet rollers, one side edge of the plate is positioned on the table and magnetically attached to the magnet roller. Therefore, when the sheet material is fed, the sheet material is fed with one side edge magnetically positioned on the magnet roller. As described above, when the plate material is fed and comes into contact with the stopper member, the contact detection sensor detects the contact of the plate material, a detection signal is output to the control device, and the driving device is immediately driven to slide the slide. The plate is lowered and the plate is trimmed.

Thereafter, the plate member can be accurately sheared by positioning the stopper member at a retracted position where contact with the plate member is avoided and positioning the plate member using a back gauge device.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

In the following description, the case of a shearing machine is exemplified, but the present invention is not limited to the shearing machine but can be applied to other plate processing machines.

Referring to FIG. 1, a fixed lower blade 7 is attached to a rear portion of a table 5 attached to a lower frame 3 of the shearing machine 1. Guide rollers 11, 13 attached to a part of the upper frame 9 with respect to the fixed lower blade 7.
A movable upper blade 17 is provided on a slide 15 which is guided and moved up and down.

The vertical movement of the slide 15 is performed by the vertical movement of the connecting rod 21 via a shaft 19 attached to a lower part of the slide 15. More specifically, connecting rods
The other end of the shaft 21 is rotatably supported eccentrically on a shaft 23, and one pulley 25 is mounted on the shaft 23. On the other hand, a drive motor (not shown) is attached to the upper frame 9, and the other pulley 27 is attached to the drive motor.
A belt 29 such as a timing belt is wound around one pulley 25 and the other pulley 27.

With the above configuration, when a drive motor (not shown) is driven, the shaft 23 is rotated via the pulley 27, the belt 29, and the pulley 25. By rotating the shaft 23, the connecting rod 21 moves up and down, and the slide 15 moves up and down. The movable upper blade 17 is moved up and down by the vertical movement of the slide 15, and the plate material W placed on the table 5 is subjected to shearing.

The lower side of the balance cylinder 31 for balancing the slide 15 itself when the slide 15 moves up is provided on the lower side of the slide 15, and the upper side of the balance cylinder 31 is provided on a part of the upper frame 9.

Fixed lower blade 7 and movable upper blade in shearing machine 1
A transfer device 33 for loading and unloading the plate material W is provided before and after a processing position at which the plate material W is subjected to the shearing process in cooperation with 17. More specifically, a transport drive motor 37 is attached to a part of the upper frame 9, and a drive transmission device 39 including a pulley and a belt is connected to the transport drive motor 37, and the transport drive motor 39 is loaded by the drive transmission device 39. Transport device 33 and unloading transport device 35 are driven.

The carry-in transport device 33 is provided on the table 5, and the carry-out transport device 35 is supported by the upper frame 9, and both are constituted by almost the same type of electromagnetic belt conveyor.

Behind the processing position by the lower blade 7 and the upper blade 17, there is provided a back gauge device 41 which is movable in the direction of transport of the plate material W (left-right direction in FIG. 1).
The edge of the abutting plate material W is positioned on the abutting surface 43 of the back gauge device 41.

On the front side (left side in FIG. 1) of the slide 15,
A vertically extending rod 45 is attached, and is moved up and down together with the slide 15. A plate pressing member 47 is integrally attached to a lower portion of the rod 45. A spring 49 is provided around the outer periphery of the rod 45 so as to be urged downward.

According to the above configuration, when the slide 15 is moved up and down, the movable upper blade 17 attached to the lower portion of the slide 15 descends with respect to the fixed lower blade 7 and the slide 15 is moved before shearing.
The plate material W is pressed against the table 5 by the plate material pressing member 47 attached to the table 5 via the rod 45, and the plate material W is fixed, and then the shearing process is performed.

A cover 51 is mounted in front of the upper frame 9, and a kick-out device 53 that kicks out the end material of the plate material W rearward is provided below the cover 51. Accordingly, one sheet material W is sheared to a predetermined size, and the remaining material of the last remaining sheet material W is kicked out by operating the kicking device 53,
Scrap box 55 provided below the lower frame 3
It is designed to be stored in.

On one side of the table 5, a plate positioning device 57 is provided. More specifically, as shown in FIG.
On one side of the upper surface of the table 5, a support member 59 extending in the transport direction of the plate material W (front-back direction, left-right direction in FIG. 2) is fastened by a plurality of bolts 61. A plurality of magnet rollers 63 are rotatably mounted on the support member 59 with a plurality of bolts 65 at appropriate intervals in order to perform magnetic adhesion positioning of one side edge of the plate material.

With the above configuration, the plate material W is carried in from the left side in FIG. 2 by the carry-in transfer device 33, and the plate material W is pushed from above in FIG. 2 to press one side edge of the plate material W against a plurality of magnet rollers 63. Since the magnet roller 63 is magnetized, one side edge of the plate material W is magnetically attached to the plurality of magnet rollers 63 and positioned. Next, when the loading / unloading device 33 is operated to transfer the plate material W to the right in FIG. 2, one side edge of the plate material W is in a state of being magnetized and held by the plurality of magnet rollers 63. It will be transported with the edge positioned.

A plate material positioning device 69 for positioning the plate material W in the front-rear direction when trimming the edge of the plate material W, and an operation device 73 for operating the positioning device 69 are provided.
More specifically, as shown in FIGS. 2, 3 and 4, a plate positioning device 69 is mounted via a plurality of brackets 71 integrated with the slide 15.

The operating device 73 is fastened on the table 5 with a plurality of bolts 77 via a plurality of mounting members 75. Operation device
73 is a casing 74 supporting a handle 79 and the handle 79
And a drive shaft 81 and the like rotatably mounted in the casing 74. Drive shaft
An external thread is engraved on the outer peripheral portion of 81, and a nut member 82 is screwed to the external thread. A handle 83 is attached to one end of the handle 79. Further, on the upper surface of the casing 74, a groove 74G for guiding the nut member 82 is provided, and a scale 85 for indicating a moving distance of the nut member 82 is provided.

Therefore, by turning the handle 79 clockwise with the handle 83, for example, the drive shaft 81 rotates, and the nut member 82 is moved rightward in FIG. 2 along the groove 74G. The movement distance can be read based on the relationship between the pointer of the nut member 82 and the scale 85.

One end 87A of a flexible shaft 87 is connected to the tip of the drive shaft 81. The other end 87B of the shaft 87 is connected to the rotatable rotating shaft 8 of the plate positioning device 69.
9 is connected to one end. On the outer periphery of the rotating shaft 89,
A male screw portion is engraved, and a slide block 91 having a female screw portion screwed to the male screw portion is movably screwed. A support plate 97 is attached to the slide block 91 with a plurality of bolts 95 as shown in FIGS.

More specifically, each bracket 71 has a plurality of bolts 93
Attached to the slide 15 via
A slide bar 91 is movably supported by a guide bar 88 having both ends supported by 71, and the slide block 91 is movably screwed to the rotation shaft 89 parallel to the guide bar 88, The support plate 97 is attached to the slide block 91.

At the lower part of the support plate 97, a shaft 99 penetrating as shown in FIG.
It is fixed with. The support plate 97 is fitted in a groove 105 formed in the positioning stopper member 103, and the shaft 99 supports the positioning stopper member 103 in a swingable manner.

With the above configuration, the other end of the flexible shaft 87
A rotation shaft 89 connected to 87B is rotated by the rotation of the handle 79 and the drive shaft 81. The rotary shaft 89 moves the positioning stopper member 103 in the front-rear direction (the left-right direction in FIG. 2) via the slide block 91, the support plate 97, and the shaft 99 to adjust the position.

The front-rear direction of the positioning stopper 103 (FIG. 2, FIG.
The position (in the horizontal direction in the figure) can be read from the relationship between the position of the nut member 82 and the scale 85.

In the upper part of the positioning stopper member 103, a through-hole 107 penetrating in the left-right direction in FIG. 4 is formed, and in the front and rear portions of the through-hole 107 before and after the positioning stopper member 103, the through-hole 107 is larger than the through-hole 107. Grooves 109 and 111 are formed in substantially the same length. A shaft 115 having a contact 113 at the tip is mounted in the through hole 107. The groove
A spring 117 is interposed in 109 so that the contact 113 can be urged rightward in FIG.

On the other hand, an insulating member 119 such as a nylon member is mounted in the groove 111, and the shaft 111 is attached to the insulating member 119.
115 is inserted. The switch unit 121 is mounted on the rear part (the left side in FIG. 4) of the insulating member 119. This switch section constitutes a contact detection sensor for detecting contact of the plate material W. The switch section detects the presence or absence of contact with a contact piece 123 which is a detection member provided at the rear of the shaft 115. By doing so, a signal is output. The switch 121 is electrically connected to a control device (not shown) that drives a driving device that moves the slide 15 up and down.

With the above configuration, the plate material positioning device 69 is
Is moved to a predetermined size by the operation of the handle 79 in the above, and the plate W is transferred in the rearward direction while one side edge of the plate W is magnetically held by the plurality of magnet rollers 63. The plate material W is transferred, and an edge of the plate material W abuts on a contact 113 which is a tip end of a shaft 115 mounted on the upper part of the positioning stopper member 103 of the plate material positioning device 69.

Next, when the edge of the plate material W pushes the contact 113 against the spring 117, the contact piece 123 provided at the rear of the shaft 115,
Since the attached switch 121 is released via the insulating member 119, the switch 121 is detected as being released, and a detection signal is output to a control unit for controlling the drive of the slide 15. The detection signal turns on the clutch to drive the drive device of the slide 15, and also stops the carry-in transfer device 33 to stop the transmission operation.

As described above, the carry-in transfer device 33 is stopped, but the edge of the plate material W slightly pushes the contact 113 by inertia or the like,
When the edge of the plate W comes into contact with the tip of the positioning stopper member 103, the plate W is positioned for trimming. When the plate material W is positioned, the edge cutting of the plate material W is performed by the vertical movement of the slide 15 and the vertical movement of the movable upper blade 17 with respect to the fixed lower blade 7. When the trimming is completed, the contact 113 is returned to the original position by the urging force of the spring 117. In addition, contact piece 1
23 makes contact again.

In FIG. 3, a solenoid electromagnetic switching device 127 is attached to the lower portion of the slide lock 91 via an attachment base 125. The solenoid electromagnetic switching device 127 serves as an actuating device for moving the positioning stopper member 103 to two positions. A plunger 129 is provided on the left side of the solenoid electromagnetic switching device 127 in FIG. Yes,
Plunger by ON / OFF of solenoid electromagnetic switching device 127
129 can move to two positions in the left-right direction in FIG. Pin 131 is almost in the middle of plunger 129.
The pin 131 is cut into an inverted U-shaped groove 133 formed in a lower portion of the positioning stopper member 103.

With the above configuration, when the solenoid electromagnetic switching device 127 is operated, the plunger 129 is moved to the position shown by the two-dot chain line in FIG. When the plunger 129 moves to the position shown by the two-dot chain line, the positioning stopper member 103 rotates clockwise about the shaft 99 as a fulcrum, and reaches the position shown by the two-dot chain line, that is, the retracted position. That is,
When the plate positioning device 69 is not used, it stands by at this retreat position.

The present invention can be embodied in other modes by making appropriate changes without being limited to the above-described embodiment.

[Effects] As can be understood from the above description of the embodiments, in short, the present invention provides a table (5) for supporting a plate (W).
Fixed lower blade (7) provided on the rear side of the fixed lower blade (7)
A vertically movable slide (15) having a movable upper blade (17) for shearing the plate (W) in cooperation with the table (5), and a plate (5) transferred backward from the table (5). A back gauge device (41) having an abutment surface (43) for abutting and positioning an edge, wherein a side surface of the table (5) is provided on one side of the table (5). A plurality of magnet rollers (63) whose side edges can be magnetically attached are rotatably provided with a space in the front-rear direction, and a slide block is provided on one side of the slide (15) at a position below the movable upper blade (17). (91) is provided so as to be movable and positionable in the front-rear direction, and one side of a rear edge of the plate (W) which is magnetically attached to the magnet roller (63) and is transferred to the slide block (91) in the rearward direction. And a positioning stopper member (103) that can contact near the upper end, The positioning stopper member (103) for moving the positioning stopper member (103) is provided between a position where the positioning stopper member (103) can contact the plate material (W) and a retreat position where the contact is avoided. When an actuating device (127) is provided, and when it is detected that the plate (W) has contacted the positioning stopper (103), a detection signal is sent to a control device that drives a driving device that moves the slide (15) up and down. Is provided.

As is apparent from the above configuration, in the present invention, a plurality of magnet rollers 63 capable of magnetically attaching one side edge of the plate material W are provided on one side of the table 5, so that the plate material W When one side edge is pressed against the magnet roller 63 to perform positioning in the lateral direction, one side edge of the plate material W is magnetically held. Therefore, at the time of feeding the plate material W, the plate material W is always positioned with the one side edge magnetically attached to the magnet roller 63. Therefore, the positioning of the plate material W in the lateral direction is as follows.
Once one side edge of the sheet material W is magnetically attached to the magnet roller 63, there is no occurrence of displacement or the like at the time of material feeding, so that the position of the sheet material W can be relatively determined regardless of the width and thickness of the sheet material W. Easy.

In other words, since it is not necessary to press and hold the other side edge of the plate material W against the magnet roller 63, it is possible to omit a conventional pressing member. Further, even when the plate material is thin, for example, a curve or the like due to pressing does not occur.

Further, according to the present invention, when the trimming of the plate material W is performed, the slide lock 91 is positioned in the front-rear direction corresponding to the trimming size, and the stopper member 103 is held at a position where it can be abutted. When one side edge of W is magnetically attached to the magnet roller 63 and the side is positioned and the material is fed and the rear end of the one side edge abuts near the upper end of the stopper member 103, the contact detection sensor is activated. When the contact of the plate material W is detected and a detection signal is output to the control device, the driving device is immediately driven, the slide 15 is lowered, and the plate material W is trimmed.

After that, the stopper member 103 is positioned at the retracted position where the contact with the plate material W is avoided, and the plate material W can be accurately sheared by using the back gauge device 41 to position the plate material W. is there.

As described above, when the edge of the plate material W is trimmed, when the plate material W comes into contact with the vicinity of the upper end of the stopper member 103 and the slide 15 immediately descends, the stopper member 103 descends integrally with the slide 15 and immediately separates from the plate material W. Therefore, even when the retracting operation of the stopper member 103 to the retracted position is delayed, the plate member W is not sheared in a state where the plate member W is in contact with the stopper member 103, The component force during shearing of the plate material W does not act on the stopper member 103, and it is easy to maintain accuracy.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a shearing machine which is an embodiment of a plate processing machine embodying the present invention. FIG. 2 is a partially enlarged plan view of an arrow II portion in FIG. FIG. 3 is an enlarged sectional view taken along the line III-III in FIG. FIG. 4 is an enlarged sectional view taken along line IV-IV in FIG. [Description of reference numerals indicating main parts in the drawings] 1 ... Shearing machine 7 ... Fixed lower blade 15 ... Slide 17 ... Movable upper blade 57,69 ... Plate material positioning device 73 ... Operation device 89 ... Rotating shaft 103 ... Positioning stopper member 113 ... Contact 121 ... Switch

Claims (1)

(57) [Claims] 1. A fixed lower blade (7) provided on the rear side of a table (5) supporting a plate (W), and the plate (W) is sheared in cooperation with the fixed lower blade (7). A vertically movable slide (15) having a movable upper blade (17) and an abutting surface (43) for abutting and positioning an edge of a plate (5) transferred rearward from above the table (5). ) With a back gauge device (41),
On one side of the table (5), a plurality of magnet rollers (63) capable of magnetically attaching one side edge of the plate (W) are rotatably provided in the front-rear direction while being separated from each other, and the movable upper blade (17) is provided. At a lower position, a slide block (91) is provided on one side of the slide (15) so as to be movable and positionable in the front-rear direction.
The plate material (W) which is magnetically attached to the magnet roller (63) and is transferred rearward to the slide block (91).
A positioning stopper member (103) is provided so that one side of the rear end edge and the vicinity of the upper end can abut.
An actuating device (127) for moving the positioning stopper member (103) while movably providing the position (3) between a position where the plate material (W) can be brought into contact and a retracted position where the contact is avoided. A contact that outputs a detection signal to a control device that drives a driving device that moves the slide (15) up and down when it detects that the plate (W) has come into contact with the positioning stopper (103). A shearing machine comprising a detection sensor.