JP5998077B2 - Cutting device - Google Patents

Description

  The present invention relates to a cutting apparatus that cuts a plate-like material and divides it into a workpiece side and a scrap side.

  Conventionally, in a cutting processing apparatus that cuts a plate-like material into a workpiece side and a scrap side by a cutting die, the workpiece or scrap generated by cutting is pushed up from the lower die side by a pin-like member and greatly tilted. Discharged from the mold.

  As such a cutting device, for example, in Patent Document 1, the edge portion of the workpiece placed on the lower die is cut by lowering the upper die, and the edge portion of the cut workpiece is removed as scrap. Things are listed. This cutting apparatus includes a pin-shaped member provided so as to be slidable toward the lower surface of the scrap and a biasing member that biases the member toward the scrap in order to remove the scrap.

  When cutting the workpiece, the pin-shaped member is pushed into the lower mold by the upper mold. When the upper die returns upward, the pin-shaped member rises due to the urging force of the urging member and pushes up the generated scrap. As a result, the scrap falls naturally and is discharged out of the mold.

JP 2008-62266 A

  However, as described above, according to the method in which the scrap is discharged by being pushed up by the pin-shaped member, the pin-shaped member needs to be largely protruded from the lower mold so that the scrap is inclined and reliably discharged.

  In this case, in order for the pin-shaped member to protrude greatly and the scrap to be discharged, it is necessary to raise the upper die to some extent. For this reason, a certain amount of time is required until scrap is discharged after the material is cut. Accordingly, when forming the workpiece by sequentially cutting the material, a corresponding cycle time is required.

  In view of the problems of the related art, an object of the present invention is to provide a cutting apparatus capable of quickly discharging scraps or workpieces.

  The cutting device of the present invention is a cutting device that cuts a plate-like material and divides it into a workpiece side and a scrap side, and includes a cutting die having an upper die and a lower die for cutting the material, and the material A discharge device that discharges scraps or workpieces generated by the cutting of the material from the cutting mold, and the discharge device discharges the material before the material placed on the lower mold is cut. A gripping unit that grips an edge on the scrap or workpiece side, and a drive unit that moves the gripping unit in the discharging direction when the material placed on the lower mold is cut, Allowing the scrap or work to be discharged to move away from the gripping portion by the inertial force in the discharging direction by releasing the gripping of the edge when moving in the discharging direction. It is characterized by.

  According to the present invention, before the material placed on the lower mold is cut, the scrap on which the material is discharged or the edge on the workpiece side is gripped by the gripping portion. Thereafter, when the material is cut by lowering the upper mold, the gripping portion moves in the discharge direction while gripping the scrap or workpiece generated by the cutting. In the middle of this movement, the scrap or the workpiece is released.

  Therefore, after that, when the gripping part changes the movement trajectory downward or stops, the scrap or the work is separated from the gripping part by the inertia force generated by the movement and moves in the discharge direction and is discharged. .

  In this way, the edge of the material is gripped before the material is cut, and when the material is cut, the scrap or workpiece is moved in the discharge direction, the grip is released, and the material is discharged. For this reason, scrap or a workpiece | work can be reliably discharged | emitted with a simple structure using the inertia which arose by movement.

  Further, after cutting the material, scrap or workpiece can be discharged immediately without waiting for the upper mold to rise. Therefore, when cutting is repeated, the cycle time can be shortened by the amount that scrap or workpiece can be discharged quickly.

  In the present invention, the gripping portion is provided so as to be rotatable with respect to the gripping surface, the hook-shaped member having a tip portion bent in a hook shape toward the cutting mold side, and an edge of the material When the gripping surface is gripped, the hook-like member is rotated to a position where the edge is sandwiched between the gripping surface and the tip of the hook-like member, and when the grip is released, the scrap or workpiece is moved by the inertial force. And a rotating part that rotates the hook-shaped member at a position that allows the rotation. According to this, it is possible to realize the grip portion with a simple configuration in which the hook-shaped member is rotated with respect to the grip surface.

It is sectional drawing which shows the principal part of the cutting processing apparatus which concerns on one Embodiment of this invention. It is a figure which shows operation | movement of the hook-shaped member of the holding part in the cutting processing apparatus of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG.1 and FIG.2, the cutting device 1 of embodiment cut | disconnects the plate-shaped material 2, and divides | segments into the workpiece | work 3 side and the scrap 4 side. The cutting processing device 1 includes a cutting die 7 having an upper die 5 and a lower die 6 for cutting the material 2, and a discharging device 8 for discharging the scrap 4 generated by cutting the material 2 from the cutting die 7.

  Before the material 2 placed on the lower mold 6 is cut, the discharging device 8 includes a gripping portion 9 that grips an edge of the material 2 on the scrap 4 side and the material 2 placed on the lower mold 6. And a drive unit 10 that moves the gripping part 9 in the discharge direction when cut. When the grip portion 9 is moving in the discharge direction, the scrap 4 is allowed to move away from the grip portion 9 with an inertial force in the discharge direction by releasing the grip of the scrap 4.

  The gripping part 9 rotates between a gripping surface 11a, a hook-like member 12 provided so as to be rotatable with respect to the gripping surface 11a, and a hook-like member 12 between a predetermined gripping position and a predetermined release position. And a rotating part 13 to be moved.

  The gripping part 9 grips the material 2 described above by positioning the hook-shaped member 12 at the gripping position described above by the rotating part 13. At this time, the edge of the material 2 is sandwiched between the gripping surface 11 a and the tip of the bowl-shaped member 12. Moreover, the holding part 9 cancels | releases the above-mentioned holding | gripping by positioning the hook-shaped member 12 in the above-mentioned cancellation | release position by the rotation part 13. FIG. As a result, the scrap 4 is allowed to move away from the gripping portion 9 and move in the discharge direction with an inertial force.

  The gripping surface 11a is provided on the moving body 11 as its upper surface. The hook-shaped member 12 is rotatably supported by the support member 14 on the moving body 11. The rotating unit 13 includes a link member 15 and a driving cylinder 16 for rotating the bowl-shaped member 12.

  One end side of the link member 15 is connected to the flange-like member 12 so as to be rotatable on the base end side with respect to the rotation shaft. The other end side of the link member 15 is rotatably connected to the distal end portion of the drive cylinder 16. A base end portion of the drive cylinder 16 is fixed to the moving body 11.

  The center of rotation of the hook-shaped member 12 is set so that the edge of the material 2 described above can be gripped and released without any trouble. That is, the center of rotation is set so that the tip of the bowl-shaped member 12 rotates along a circular orbit traversing the surface including the gripping surface 11a.

  The drive unit 10 moves the moving body 11 and the guide groove 17 that guides the gripping unit 9 movably between the first position on the cutting die 7 side and the second position on the discharge direction side of the scrap 4. A rotating part 18 to which power for transmission is transmitted, a rotating lever 19 having a base end fixed to the rotating part 18, and a link member 20 provided between the rotating lever 19 and the moving body 11.

  The guide groove 17 has a shape curved obliquely downward from the horizontal direction from the first position to the second position. The rotating unit 18 is rotated by the transmitted power. One end portion of the link member 20 is rotatably connected to the moving body 11, and the other end portion is rotatably connected to the distal end portion of the rotation lever 19.

  The material 2 is sequentially fed in a direction perpendicular to the paper surface of FIG. The materials 2 that are sequentially fed are sequentially positioned on the lower die 6 for each part to be processed by the cutting apparatus 1 and are subjected to cutting. As the material 2, for example, a long metal material in a belt shape is applicable. The material 2 may be a workpiece to be processed by the cutting apparatus 1.

  In this configuration, when cutting the material 2 positioned on the lower mold 6, first, the edge of the material 2 on the scrap 4 side is gripped by the grip portion 9 positioned at the first position. Is done. This gripping is performed by rotating the hook-shaped member 12 via the link member 15 by the drive cylinder 16 and sandwiching the edge between the gripping surface 11a of the gripping portion 9 and the tip of the hook-shaped member 12.

  Next, the upper die 5 is lowered, and the material 2 is sheared by the cooperation of the upper die 5 and the lower die 6. By this shearing, the material 2 is divided into the workpiece 3 side and the scrap 4 side. Simultaneously with the completion of the division, the scrap 4 starts to be discharged without waiting for the upper mold 5 to rise. FIG. 1 shows the state at this time.

  That is, power is transmitted to the rotating unit 18, and this power is transmitted to the gripping unit 9 via the rotating lever 19 and the link member 20. Thereby, the grip part 9 starts to move the scrap 4 in the discharge direction according to the guide groove 17. Thereafter, the grip portion 9 moves toward the second position along the guide groove 17 that is curved obliquely downward from the horizontal direction. In FIG. 2, this movement is represented by displaying the support member 14, the bowl-shaped member 12, and the scrap 4 at three locations on the movement locus.

  When the gripping part 9 reaches a predetermined position between the first position and the second position, the gripping part 9 releases the grip of the scrap 4. This release is performed by rotating the hook-shaped member 12 to the release position described above via the link member 15 by the drive cylinder 16.

  At this time, the tip of the bowl-shaped member 12 rotates along a circular trajectory that crosses the surface including the gripping surface 11a. That is, the tip of the hook-shaped member 12 is once separated upward from the gripping surface 11a of the gripping part 9, and then rotated downwardly of the gripping surface 11a. Thereby, the grip of the scrap 4 is released without any trouble, and the scrap 4 is allowed to move separately from the grip portion 9.

  When the grip is released, the scrap 4 is separated from the grip portion 9 moving on the curved track by the inertial force generated by the movement in the discharge direction, and moves in the discharge direction. The situation at this time is shown by the bowl-shaped member 12 and the scrap 4 drawn on the rightmost side of FIG. Thereby, discharge of the scrap 4 from the cutting die 7 is completed.

  During this time, when the portion of the material 2 to be subjected to the next cutting process can be carried onto the lower die 6 due to the movement of the scrap 4 in the discharge direction or the rise of the upper die 5, the carry-in is performed, The two parts are positioned on the lower mold 6.

  When the grip portion 9 reaches the second position, the grip portion 9 is returned to the first position by the reverse power transmitted to the rotating portion 18. The grip portion 9 returned to the first position grips the edge of the loaded material 2 by rotating the bowl-shaped member 12 to the above-described grip position by the drive cylinder 16. Thereafter, the cutting of the material 2 and the discharge of the scrap 4 are repeated in the same procedure as above.

  As described above, according to this embodiment, before the material 2 on the lower mold 6 is cut, the edge of the material 2 is gripped by the grip portion 9, and then the material 2 is gripped when the material 2 is cut. The part 9 is moved in the discharging direction to release the grip of the scrap 4 generated by the cutting.

  This makes it possible to reliably discharge the scrap 4 with a simple configuration using the inertia due to the movement of the grip portion 9 in the discharge direction. Further, after the material 2 is cut, the scrap 4 can be discharged immediately without waiting for the upper mold 5 to rise. Thereby, the cycle time when the material 2 is sequentially cut to form the workpiece can be shortened.

  In addition, this invention is not limited to the above-mentioned embodiment. For example, instead of gripping the edge of the material 2 on the scrap 4 side and discharging the scrap 4, the edge of the material 2 on the workpiece 3 side may be gripped and the workpiece 3 may be discharged from the cutting die 7. Good.

DESCRIPTION OF SYMBOLS 1 ... Cutting processing apparatus, 2 ... Material, 3 ... Workpiece, 4 ... Scrap, 5 ... Upper die, 6 ... Lower die, 7 ... Cutting die, 8 ... Discharge device, 9 ... Holding part, 10 ... Drive part, 11a ... gripping surface, 12 ... bowl-shaped member, 13 ... rotating part.

Claims (2)

A cutting device that cuts a plate-like material and divides it into a workpiece side and a scrap side,
A cutting die having an upper die and a lower die for cutting the material;
A discharge device for discharging scraps or workpieces generated by cutting the material from the cutting mold,
The discharging device is
Before the material placed on the lower mold is cut, a gripping part that grips the discharged scrap or workpiece side edge of the material;
A drive unit that moves the gripping part in the direction of discharge when the material placed on the lower mold is cut;
When the gripping part is moving in the discharge direction, by releasing the gripping of the edge, the discharged scrap or workpiece is moved away from the gripping part and moved in the discharge direction by an inertial force. The cutting device characterized by accepting. The gripping part is
A gripping surface;
A hook-shaped member provided so as to be rotatable with respect to the gripping surface, and having a tip portion bent in a hook shape on the cutting mold side;
When the edge of the material is gripped, the scraper or workpiece is rotated when the gripping member is rotated to a position where the edge is sandwiched between the gripping surface and the tip of the hooked member and the gripping is released. The cutting apparatus according to claim 1, further comprising: a rotating portion that rotates the hook-shaped member at a position that allows movement by inertia force.

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