JPH0661416U - Material support device for shearing machine - Google Patents

Abstract

(57) [Summary] [Purpose] Able to discharge a narrow cutting material, prevent the cutting material from getting caught between the supporter and the lower blade, and perform maintenance such as replacement work of the upper and lower blades. An object of the present invention is to provide a material supporting device for a shearing machine which is facilitated. [Structure] Upper blade 13 provided on ram 11 that can move up and down
A shearing machine 1 for shearing a work W in cooperation with a lower blade 19 provided on the table 17 and a supporter 31 for supporting the work W behind the lower blade 19 is provided. A supporter 31 is provided on the ram 11 to swing the rear side,
The supporter 31 is provided to be movable in the front-rear direction. Moreover, it is desirable to provide a shooter 77 at the lower part of the supporter 31 for discharging the cutting material backward.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a material supporting device in a shearing machine that supports a work when shearing the work.

[0002]

[Prior art]

 Conventionally, floor-standing type, electromagnetic type and ram suspension type are known as material supporting devices for supporting the work when shearing the work with a shearing machine.

In the floor-standing type material support device, the supporter is lowered to prevent interference between the upper blade and the supporter during cutting of the work. Therefore, the work will hang down during cutting. Further, in the electromagnetic material supporting device, the work is supported at the cutting center during the cutting preparation and is demagnetized when the cutting is completed to drop the work. This electromagnetic type has a weak supporting capacity and can only support thin plates, and cannot support non-magnetic materials (SUS, aluminum, etc.).

In order to solve these problems, a material support device of a ram suspension type is conceivable. For example, a structure as known from Japanese Utility Model Laid-Open No. 4-28918 is used to prevent sagging of the work. To improve the cutting accuracy.

[0005]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional ram suspension type material support device, a narrow cutting width may fall from between the supporter and the lower blade, or it may be deformed and caught, resulting in cutting material after cutting. There was a problem that it was difficult to take out. In addition, there is a problem that it is difficult to replace the upper and lower blades because the space between the supporter and the lower blade is narrow.

In order to solve the above problems, an object of the present invention is to make it possible to discharge a narrow cutting material and prevent the cutting material from getting caught between the supporter and the lower blade. It is to provide a material support device for a shearing machine that facilitates maintenance such as replacement work of upper and lower blades.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is a shearing machine for shearing a work by cooperation of an upper blade provided on a vertically movable ram and a lower blade provided on a table. A supporter for supporting the work is provided at the rear of the lower blade, and a supporter is provided on the ram to swing the rear of the supporter, and the supporter is provided so as to be movable in the front-rear direction to form a material support device for the shearing machine. .

In the material supporting device of the shearing machine, it is preferable that a shooter for discharging the cutting material to the rear is provided below the supporter.

[0009]

[Action]

 By adopting the material support device in the shearing machine of this invention, when setting the desired width of the work at the processing position of the upper and lower blades, the supporter is moved backward and raised to support the work. Cutting processing is performed. After cutting, it descends behind the supporter and the cutting material is discharged backward. Alternatively, the cutting material is discharged to the front while the supporter is raised rearward.

At the time of cutting the edge of the work, the work is set in a state where the back of the supporter is lowered and cutting work is performed, and the cutting material is discharged rearward from the shooter in the same state after cutting.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Since the overall construction of the shirring machine is already known, it will be described briefly.

Referring to FIGS. 1 and 2, the shearing machine 1 is provided with side frames 3R and 3L which are erected on both sides, and a rocking shaft 5 is used as a fulcrum at an upper portion between the side frames 3R and 3L. A movable upper frame 7 is provided, and a fluid cylinder 9 is attached to the front side (left side in FIG. 1) of the upper frame 7. A ram 11 which moves up and down by the operation of the fluid cylinder 9 is provided in front of the upper frame 7, and an upper blade 13 is attached to the lower part of the ram 11. A plate retainer 15 for pressing and fixing the work W is provided at the front of the side frames 3R, 3L.

A table 17 on which a work W is placed is provided below the side frames 3R and 3L, and a lower blade 19 is fixed to the final rear end of the table 17. A drive motor 21 is attached to the rear side of the side frames 3R, 3L. A front side of a ball screw 23 extending in the front-rear direction (left-right direction in FIG. 1) is attached to the lower portion of the ram 11, and the rear side of the ball screw 23 is connected to the drive motor 21. A nut member 25 is screwed onto the ball screw 23, and a back gauge 27 for abutting and positioning the end surface of the work W is provided at the lower portion of the nut member 25.

With the above configuration, when the drive motor 21 is driven, the ball screw 23 is rotated and the back gauge 27 is positioned at a desired position via the nut member 25. The work W is placed on the table 17 and moved backward (to the right in FIG. 1) so that the end face of the work W abuts against the back gauge 27 to position the work W.

Next, by operating the fluid cylinder 9 and moving the ram 11 up and down, the upper blade 13 and the lower blade 19 cooperate with each other so that the workpiece W is cut at a desired position. During the cutting process, the plate retainer 15 is actuated so that the work W on the table 17 is pressed and fixed from above.

A material support device 29 is provided behind the lower blade 19 (on the right side in FIG. 1). Referring to FIGS. 3, 4, 5 and 6 together, the material supporting device 29 is provided with a supporter 31 for supporting the workpiece W positioned so as to project rearward of the lower blade 19. A shaft 33 extending in the left-right direction passes through the front portion of the supporter 31, and pinions 35R and 35L are attached to both ends of the shaft 33.

Racks 37R, 37L are attached to the lower portions of the pinions 35R, 35L via front brackets 39R, 39L so as to mesh with the pinions 35R, 35L. Therefore, the supporter 31 is movable in the front-rear direction by the length of the racks 37R and 37L. The front brackets 39R and 39L are fixed to the lower portion of the ram 11 with a plurality of bolts 41.

Guide members 43R and 43L are provided between the supporters 31 and the pinions 35R and 35L. The racks 37R and 37L are placed on the guide surfaces 43S of the guide members 43R and 43L and bolts are applied from below. It is fixed at 45. Guide grooves 43G are formed in the guide portions 43R and 43L, and roller followers 47R and 47L are attached to the shaft 33 so as to slide in the guide grooves 43G. Therefore, the roller followers 47R and 47L slide in the guide groove 43G in the front-rear direction to guide the supporter 31 in the vertical direction. In addition, it also serves as a stopper at the forward and backward ends when the supporter 31 is moved in the front-rear direction.

Although the supporter 31 is positioned at two positions in the front direction and the rear direction, as shown in FIGS. 1, 3, 5, and 6, the shaft 33 on the left side of the supporter 31 is positioned. A hole 51 on one side of the arm 49 is passed through, and a slider 55 is rotatably attached to a hole 53 on the rear side of the arm 39. Then, the pin 63 is inserted through the hole 59 of the block 57 and the hole 61 of the slider 55 which are fixed to the side frame 3L with bolts. The block 57 is formed with two holes 59 for inserting the pins 63. By inserting the pins 63 into the holes 59, the supporter 31 is positioned at two positions.

As shown in FIG. 5, a spherical bearing 65 is attached to the front hole 51 of the arm 49, and the spherical bearing 65 is rotatable. A ball plunger (not shown) is attached to the block 57 to prevent the pin 63 from coming off. From the above, the supporter 31 can be easily moved by inserting / removing the pins 63 into / from the two holes at the front and rear of the block 57.

Further, since the left and right movements of the supporter 31 are synchronized by the pinions 35R and 35L and the racks 37R and 37L, when the supporter 31 is moved in the front-rear direction, there is no handle or the like and the pin 63 is pulled out. It can be easily moved by hand. As shown in FIG. 1, the rear of the supporter 31 is moved vertically by a fluid actuator 67. That is, as shown in FIG. 1, the upper end of the fluid actuator 67 is pivotally supported by a pin 69 on a supporting frame 71 attached to the side frames 3R, 3L. The lower end of the piston rod 73 attached to the fluid actuator 67 is attached to the rear portion of the supporter 31 by a pin 75.

A shooter 77 is attached to the lower part of the supporter 31 in order to discharge the narrow cutting material backward. When the narrow cutting material is discharged backward, the piston rod 73 of the fluid actuator 67 is extended and the rear portion of the supporter 31 is lowered as shown in FIG. The gap between 77 and the lower frame 79 is almost eliminated, and the cut material does not drop or get caught, and the cut material is discharged rearward through the shooter 77. It is desirable that the clearance between the shooter 77 and the supporter 3 be such that the deformed cutting material passes through. Further, in the case of maintenance such as replacing the lower blade 19, etc., the arm 49 is held in the hole 61 at the rear of the block 57 and the pin 63 is inserted into the hole 61 to facilitate maintenance work. Can be done. In the case of cutting work which is a normal work, the arm 49 is inserted into the hole 59 in front of the block 57.

When the work W is set on the table 17 and is cut into a certain width, the supporter 31 is lifted behind the supporter 31 with the front position, and the cutting material is cut after cutting. It is discharged to the rear. Further, when the cutting material is discharged forward after cutting, it is discharged forward by the back gauge 27.

Further, at the time of edge cutting (mill end material), the work W is set in a state where the back of the supporter 31 is lowered during setting and cutting, and after cutting, the cut material is discharged backward in this state. I will let you.

The present invention is not limited to the above-described embodiments, but can be implemented in other forms by making appropriate changes. As a mechanism for synchronizing left and right when moving the supporter 31 in the front-rear direction, a chain, a sprocket or the like may be used instead of the pinions 35R, 35L and the racks 37R, 37L. Further, as a driving means for moving the supporter 31 in the front-rear direction, a fluid actuator, an electric motor, a feed screw, a nut or the like may be used, and the left and right sides may be simultaneously positioned. The left and right synchronization mechanisms may be omitted when moving in the front-rear direction with a fluid actuator, electric motor, feed screw, and nut.

[0026]

[Effect of device]

 As can be understood from the above description of the embodiments, according to the present invention, since the configuration is as described in the scope of claims for utility model registration, the supporter is moved in the front-rear direction, and Since the rear part of the supporter is moved in the vertical direction, the narrow cutting material can be easily discharged rearward without falling or being scratched between the supporter and the lower blade. Further, by moving the supporter rearward to widen the gap between the lower blade and the supporter, maintenance such as replacement work of the upper and lower blades can be easily performed.

[Brief description of drawings]

FIG. 1 is a right side view of a shearing machine according to an embodiment of the present invention.

FIG. 2 is a rear view of FIG.

FIG. 3 is an enlarged view of an arrow III portion in FIG.

FIG. 4 is an enlarged view of an IV arrow portion in FIG.

FIG. 5 is an enlarged view of a V arrow portion in FIG.

FIG. 6 is an exploded view of the components shown in FIG.

[Explanation of symbols]

 1 Shearing Machine 11 Ram 13 Upper Blade 17 Table 19 Lower Blade 27 Back Gauge 29 Material Support Device 31 Supporter 67 Fluid Actuator 77 Shooter

Claims (2)

[Scope of utility model registration request] 1. A shearing machine for shearing a work by the cooperation of an upper blade provided on a vertically movable ram and a lower blade provided on a table, the work being supported behind the lower blade. A material supporting device for a shearing machine, comprising: a supporter which is provided to support the supporter; and a supporter which is provided on the ram so as to rock the rear of the supporter, and the supporter is provided to be movable in the front-rear direction. 2. A shooter for discharging cutting material to the rear is provided below the supporter.
Material supporting device in the shearing machine described.