JPH0413057Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Industrial Application Field) This invention relates to a conveyor for carrying out sheet materials sheared in a shearing machine.

(Prior art) First, the prior art of the present invention will be explained based on FIGS. 4, 5, and 6.

FIG. 4 shows a blanking shear as an example of a shearing machine 1, a product delivery conveyor 3 provided below the blanking shear, and a moving positioning device that grips and moves a workpiece W, such as a fixed-length plate material, to the shearing machine 1. 5 and work table 7
and a computer table 11 for directing scrap to a scrap box 9.

As shown in FIG. 5, the blanking shear described above has one fixed lower blade 15 provided in the X-axis direction on the edge of the table 13 of the shearing machine 1, and also has a fixed lower blade 15 extending in the Y-axis direction. 17 are provided.

Therefore, the blanking shear can be said to be a special shearing machine 1 that performs X-axis cutting and Y-axis cutting from one corner of the workpiece W at the same time to obtain a small rectangular blank.

Further, in the conventional shearing machine 1, the movable upper blade (not shown) is attached at a downward position lower than the fixed lower blade 15 in the longitudinal direction of the fixed lower blade 15 in the X-axis direction at the lowest point of the ram (not shown). A product delivery conveyor 3 that circulates and moves adjacent to a table 13, which is a lower blade mounting member, is provided at a lower position lower than the lower end of the upper blade.

The product unloading conveyor 3 has a drive roller 1 at the rear end.
9 and a driven roller 21 at the front end, a plurality of lifting rollers, which are supporting members, move upwardly approaching and then separating and returning while maintaining a horizontal position in the vicinity of the lower blade 15 with the belt-like body 23 portion that supports the product plate material (not shown) in the vicinity of the lower blade 15. 25 and 27 were provided.

Figure 6 shows the conventional product delivery conveyor 3 mentioned above.
An example is shown in more detail.

That is, the product carry-out conveyor 3 circulates the belt-shaped body 23 supporting the product plate material between a drive roller 19 and a driven roller 21 while keeping the upper surface horizontal, and a chain 31 or the like is applied between the drive roller 19 and an electric motor 29. Rotate to drive and move counterclockwise in Figure 6.

The lifting rollers 25 and 27 have their respective shaft ends pivotally connected to the lifting frame 33, and these shaft ends are rotatable at the same time around a horizontal fixed shaft 37 provided on the horizontal frame 35 of the product delivery conveyor 3. It is attached to the long leg end of the bell crank 39.

A connecting bar 41 connecting the short leg ends of the bell crank 39 extends toward the drive roller 19 side of the horizontal frame 35 and is connected to a piston rod 47 of a hydraulic cylinder 45 via an operating lever 43.

Circulating strip 23 of the product delivery conveyor 3
In this case, a first idle roller 49, a second idle roller 51, and a tension roller 53 are interposed on the side where the drive roller 19 moves to the driven roller 21.

The tension roller 53 is a bell crank 55.
The band-shaped body 23 is always kept at a constant tension by a tension spring 57 via the tension spring 57 .

Note that FIGS. 5 and 6 show a path line PL indicating the height position of the lower surface of the work W when the work W is positioned on the fixed lower blades 15 and 17.

(Problems to be Solved by the Invention) As is clear from the drawings explaining the above-mentioned prior art, since the movable upper blade descends between the fixed lower blade 15 and the band-shaped body 23 shown in FIG. When the width of the product plate material is narrow, there is a problem in that the product plate material, scraps, etc. get caught between the upper and lower strips 23 and become entangled with the lifting rollers 25, 27 and the driven roller 41.

[Structure of the invention] (Means for solving the problems) In view of the conventional problems as described above, the present invention has the following features:
In order to carry out the sheet material sheared in the shearing machine, a carry-out conveyor is provided which is placed close to the lower blade of the shearing machine, and the drive roller and driven roller provided at both ends of the frame of this carry-out conveyor are hooked onto the conveyor. An unloading conveyor for a shearing machine configured to raise and lower the rotated endless belt-shaped body between the driving roller and the driven roller by an elevating roller provided on an elevating frame provided on the frame so as to be movable up and down, The drive roller or the driven roller is rotatably supported on the frame, and the other end of a cover member having one end pivotally supported near the end of a shaft is fixed to the elevating frame, and the elevating frame is raised and lowered. When the belt-like body is raised by the lifting frame, the cover member rotates upward as the elevating frame rises to cover a gap created between the belt-like body and the frame.

(Example) An example of the present invention will be described in detail with reference to FIGS. 1, 2, and 3. Figure 2 shows the driven roller 21 in Figure 6.
1 is a partial plan view of FIG. 2, and FIG. 3 is a cross-sectional view taken along the arrow - in FIG. 2; FIG.

The driven roller 21 is rotatably provided at the tip of a horizontal frame 35 protruding to the right in FIG. Lifting frame 33 and lifting roller (support member)
27 is driven by the fluid pressure cylinder 45 to change its position up and down.

A cover member 61 is provided that can freely swing around the shaft 59 of the driven roller 21, the other end is provided inside the elevating frame 33, and the upper end extends beyond the tip inclined portion 63 of the elevating frame 33. It protrudes somewhat and is bent inward.

A horizontal elongated hole 65 is provided on the lower outer side of the tip inclined portion 63, and a cover member 61 is formed by an appropriate means.
The pin 67 implanted in the hole 65 is guided by the elongated hole 65 and changes its position.

The embodiment of the present invention described above shows only one example in which a cover member is provided between the leading end driven roller of the product delivery conveyor and the leading end side lifting roller (supporting member) of the lifting frame, but the cover member is provided between the driving roller and the rear lifting roller. It is clear that it is also possible to provide them simultaneously between the two lifting rollers or between both lifting rollers.

These cover members shield between the fixed lower blade and the circulating strip regardless of the vertical position of the strip.
Since they can swing freely and move up and down, product plates, scraps, etc. do not get caught up in the roller shaft.

[Effects of the invention] As can be understood from the above description of the embodiments, the present invention is based on a shearing machine that is arranged close to the lower blade of the shearing machine in order to carry out the sheared plate material. A carry-out conveyor 3 is provided, and an endless strip 23 is wound around a drive roller 19 and a driven roller 21 provided at both ends of a frame 35 of the carry-out conveyor 3.
is an unloading conveyor of a shearing machine configured to be lifted by an elevating roller 27 provided on an elevating frame 33 provided on the frame 35 so as to be movable up and down between the driving roller 19 and the driven roller 21, The roller 19 or the driven roller 21 is rotatably supported by the frame 35, and the other end of a cover member 61, whose one end is pivotally supported, is provided near the end of the shaft 59, and the other end of the cover member 61 is locked to the elevating frame 33. When the belt-shaped body 23 is raised by raising and lowering the lifting frame 33, the cover member 6 is lifted as the lifting frame 33 is raised.
1 rotates upward, and the gap is covered by the cover member 61 that is created between the band-shaped body 23 and the frame 35.

As is clear from the above configuration, in the present invention, one end of the cover member 61 is supported near the end of the shaft 59 that supports the driving roller 19 or the driven roller 21, and the other end of the cover member 61 is latched to the lifting frame 33. The cover member 61 is configured to follow the vertical movement of the lifting frame 33.
3, the gap created between the strip 23 and the frame 35 is covered by the cover member 61. For example, scraps, etc., do not get inside the band-shaped body 23 even when the belt-shaped body 23 is in this state.

[Brief explanation of the drawing]

Fig. 1 is a partial plan view of the tip of a product delivery conveyor according to an embodiment of the present invention, Fig. 2 is a side view of the same, and Fig.
The figure is a cross-sectional view taken along the arrow in FIG. 2, FIG. 4 is a plan view of the shearing machine and the product delivery conveyor to explain the background of the invention, FIG. 5 is an explanatory diagram, and FIG. 6 is a conventional art. FIG. Explanation of symbols representing main parts of the drawings, 1... Shearing machine, 3... Product delivery conveyor, 15...
... fixed lower blade, 21 ... driven roller, 25 ... lifting roller, 33 ... lifting frame, 61 ... cover member.

Claims (1)

[Scope of utility model registration request] In order to carry out the sheet material sheared in the shearing machine, a carry-out conveyor 3 is provided which is disposed close to the lower blade of the shearing machine. The endless belt-like body 23 that is wound around the driven roller 21 is
9 and the driven roller 21, the conveyor is raised by a lifting roller 27 provided on a lifting frame 33 provided on the frame 35 so as to be movable up and down. 21
a shaft 59 rotatably supported on the frame 35;
The other end of a cover member 61 with one end pivoted is provided near the end view of the cover member 61 to be locked to the elevating frame 33, and when the band-like body 23 is raised by the elevating and lowering of the elevating frame 33, An unloading conveyor for a shearing machine, characterized in that the cover member 61 rotates upward as the elevating frame 33 rises to cover a gap created between the strip body 23 and the frame 35.