JPH0529779Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a shearing machine, and more specifically, a shearing machine that can automatically transport a plate material between a lower blade and an upper blade. Regarding.

(Technical background of the invention and its problems) Conventionally, when shearing a plate with a shearing machine, the operator manually carries the plate between the lower blade and the upper blade.

If the sheet materials are brought in manually, it is not possible to automate the process by placing a shearing machine on the sheet processing line, so attempts have been made to automatically carry the sheet materials in.

Conventionally, a shearing machine has adopted a configuration in which a table is rotatably provided with a plurality of conveyance rollers extending in the left-right direction.

In a shearing machine, the loading of the plate material is stopped when shearing the plate material, and the loading of the plate material is repeated after the shearing is completed. Therefore, in order to improve work efficiency, the rotation speed of the conveyance roller is increased. If this happens, slipping may occur between the lower surface of the plate and the conveying roller, resulting in slip marks on the plate. In order to prevent the above-mentioned slippage, a configuration in which the conveying roller is magnetized has been partially adopted, but this was not very effective.

In addition, in order to prevent meandering of the plate material, it is necessary to process the conveyance roller with high precision so that the diameter is constant over the entire length, which causes a problem that manufacturing is rather complicated.

(Means for solving the problem) In view of the conventional problems as mentioned above, the present invention
A plurality of conveyor frames extending in the front-rear direction perpendicular to the longitudinal direction of the lower blade are mounted on a table of a shearing machine equipped with a lower blade and an upper blade for shearing plate materials in the longitudinal direction of the lower blade. Each conveyor frame is provided with an endless conveyor belt that can be freely driven to carry the plate material between the lower blade and the upper blade, and the plate material is magnetically attached to the conveyor belt. A conveyance device for carrying out is provided behind the shearing position of the lower blade and the upper blade to carry out the sheared pieces that are sheared from the plate material by magnetism, and this conveyance device for carrying out and the above-mentioned The plurality of conveyor belts provided on the table are each linked to a common drive device.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

Referring to FIG. 1, a fixed lower blade 7 is attached to a lower frame 3 of a shearing machine 1 via a table 5. A movable upper blade 17 is provided on a slide 15 that moves up and down while being guided by guide rollers 11 and 13 attached to a part of the upper frame 9 relative to the fixed lower blade 7.

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

With the above configuration, when the drive motor (not shown) is driven, the shaft 23 is rotated via the pulley 27, belt 29, and pulley 25. By rotating the shaft 23, the connecting rod 21 moves up and down, and the slide 15 moves up and down. As the slide 15 moves up and down, the movable upper blade 17 moves up and down, and the plate material W placed on and pressed against the fixed lower blade 7 is sheared.

Note that when slide 15 rises, slide 1
One of the balance cylinders 31 for balancing the slide 15 itself is provided at the lower part of the slide 15, and the other balance cylinder 31 is provided at a part of the upper frame 9.

In front and behind the processing position where the fixed lower blade 7 and the movable upper blade 17 perform the shearing process in cooperation with each other in the shearing machine 1, there is a conveying device 33 for carrying in the plate material W.
A transport device 35 for carrying out is provided. More specifically, a conveyance 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 conveyance drive motor 37. 39 drives the carrying-in conveying device 33 and the carrying-out conveying device 35. Note that the carrying-in conveying device 33 and the carrying-out conveying device 35 are constituted by electromagnetic belt conveyors of almost the same type.

Behind the processing position, a back gauge device 41 is provided which is movable in the left and right directions in the transport direction of the plate material W in FIG. The backing plate material W is positioned.

In front of the slide 15 and on the left side in FIG. 1, there is a rod 45 extending in the vertical direction.
5 and is moved up and down together with the slide 15. A plate material holding member 47 is integrally attached to the lower part of the rod 45. Rod 45
A spring 49 is interposed around the outer circumference of the
It is designed to be biased downward.

With the above configuration, when the slide 15 is moved up and down, the movable upper blade 17 attached to the lower part of the slide 15 descends with respect to the fixed lower blade 7, and before the shearing process is performed, the spring 49 is attached to the slide 15 via the rod 45. The plate material pressing member 47 urged downwardly presses and clamps the plate material W.

The remaining material of the plate material W cut by the cooperation of the movable upper blade 17 and the fixed lower blade 7 is removed by a link mechanism provided on the front surface of the slide 15 (on the left side in FIG. 1). The material kicking device 51 kicks out the remaining material by driving a drive source (not shown).

The remaining materials kicked out in this way fall into a scrap box 53 installed inside the lower frame 3 and are disposed of therein.

Further, a side gauge 55 serving as a reference in the width direction of the plate material W is mounted on the upper side of the conveyor device 33 for carrying in the plate material.

Next, one embodiment of the carrying-in conveying device 33 and the carrying-out conveying device 35 equipped with the plate automatic feeder 57, which are the main parts of this embodiment, will be explained in more detail with reference to FIGS. 2 to 4. . In addition, the plate material automatic feeder 57 provided in each transport device for carrying in and carrying out
Since they have the same configuration, explanation will be given by taking the loading conveyance device 33 as an example.

In FIGS. 2 to 4, the drive transmission device 39 is connected to the aforementioned transport drive motor 37 (not shown).
The carry-in conveyance device 33 is driven via the belt 59, the pulley 61 is rotated via the belt 59, and the drive shaft 63 to which the pulley 61 is fixed is rotated.

A driving pulley 65 of an automatic plate feeding device 57, which is appropriately arranged according to the width of the plate to be handled, is attached to the drive shaft 63, for example, by a spline groove. The driving pulley 65 is rotatably supported on the conveyor frame 67 via a bearing 69.

The conveyor belt 71 (a belt through which magnetic force can pass) is wound around the drive pulley 65 and guide pulleys 73 and 75 provided on the inlet and outlet sides of the feeder 57, and a tension mechanism 77 is used to prevent the conveyor belt 71 from loosening. , and is configured so that tension is always applied to the conveyance belt 71.

The conveyor frame 67 is attached via a bracket 81 that engages with a plurality of T-shaped grooves 79 provided on the upper surface of the support member 5 and is slidable in the board width direction (vertical direction in FIG. 2). ) can be moved freely.

An electromagnet 83 is installed inside the conveyor belt 71.
A plurality of magnets (permanent magnets may also be used) are arranged on the conveyor frame 67. (See FIG. 4) With the above configuration, the plate material W sent to the carry-in conveyance device 33 is attracted via the conveyance belt 71 by the magnetic force of the electromagnet 83. For this reason, the transport drive motor 3
7 rotates the drive pulley 65 via the drive transmission device 39, the conveyance belt 71 rotates and the plate material W is transferred, but the magnetic force of the electromagnet 83 prevents slipping between the plate material W and the conveyance belt 71. , it is possible to obtain a predetermined amount of movement with high precision.

In addition, by unitizing the feeding device,
The number and position of the shearing machine can be freely changed depending on the size of the shearing machine body, the width of the plate material to be handled, etc.

Although a shearing machine has been described as this embodiment, it can also be applied to other plate processing machines equipped with a conveying device, and various modifications may be made without departing from the gist of the present invention. Of course, it can be changed.

[Effect of idea]

As can be understood from the above description of the embodiments, in short, the present invention is such that the table 5 of the shearing machine 1 is equipped with the lower blade 7 and the upper blade 17 for shearing the plate material W. A plurality of conveyor frames 67 extending in the front-rear direction perpendicular to the longitudinal direction of the lower blade 7 are arranged so as to be adjustable in position in the longitudinal direction of the lower blade 7. An endless conveyance belt 71 for conveying the plate material W into the space between the blade 17 and the blade 17 is provided so as to be freely movable.
A conveying device 35 for carrying out the sheared pieces sheared from the plate material W is provided behind the shearing position by the lower blade 7 and the upper blade 17. This unloading conveyance device 35 and the plurality of conveyance belts 71 provided on the table 5 are each linked to a common drive device.

As is clear from the above configuration, in the present invention, the table 5 of the shearing machine 1 includes a plurality of conveyor frames 67 each having a conveyor belt 71.
is mounted so that its position can be adjusted, and each conveyor frame 67 is provided with a magnet 83 for magnetically attaching the plate material W to the upper surface of the conveyor belt 71. Therefore, the interval between the conveyor frames 67 can be adjusted according to the width of the plate material W to be conveyed, and the plate material W is not bent, and there is no space between the conveyance belt 71 and the plate material W. It does not cause slippage.

Furthermore, in the present invention, each conveyor belt 71 of each conveyor frame 67 is linked to a common drive device, so each conveyor belt 71 runs synchronously, and the load on each conveyor belt 71 is The plate material W placed and conveyed does not meander, and the plate material W can be accurately carried between the lower blade 7 and the upper blade 17.

Furthermore, in the present invention, a transporting device 35 for transporting the sheared pieces by magnetically attaching them is provided on the rear side of the shearing device made up of the upper blade 17 and the lower blade 7.
Since this conveying device 35 and each of the conveying bands 71 are interlocked and connected to a common drive device, the movement of the plate material W before and after the shearing position is always performed at the same speed, and even after the sheared pieces are separated, the plate material W There is no interference between the W and the sheared pieces, and smooth conveyance is achieved.

That is, according to the shearing machine according to the present invention, it is easy to arrange the shearing machine in a plate processing line, automatically carry in the plate, and carry out the sheared pieces after shearing.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing a shearing machine which is an embodiment of the present invention. Figures 2 to 4 show the automatic plate feeder according to this embodiment, where Figure 2 is a plan view taken along the - line in Figure 1, and Figure 3 is a cross section taken along the - line in Figure 2. figure,
FIG. 4 is an enlarged sectional view taken along the - line in FIG. 3. Explanation of symbols representing main parts of the drawings, 33...
... Carrying device for carrying in, 35... Carrying device for carrying out, 5
7...Plate material automatic feeder, 71...Transport belt, 83
……electromagnet.

Claims (1)

[Scope of utility model registration request] A plurality of conveyor frames 67 extending in the front-rear direction perpendicular to the longitudinal direction of the lower blade 7 are installed on the table 5 of the shearing machine 1 which is equipped with a lower blade 7 and an upper blade 17 for shearing the plate material W.
are arranged so as to be adjustable in position in the longitudinal direction of the lower blade 7, and each conveyor frame 67 runs an endless conveyor belt 71 for conveying the plate material W between the lower blade 7 and the upper blade 17. A magnet 83 is provided so as to be freely drivable and to magnetically attach the plate material W to the conveyance belt 71, and the sheared pieces sheared from the plate material W are magnetized behind the shearing position by the lower blade 7 and the upper blade 17. The present invention is characterized in that an unloading conveying device 35 for loading and unloading is provided, and this unloading conveying device 35 and the plurality of conveying bands 71 provided on the table 5 are interlocked and connected to a common drive device. shearing machine.