JPH04323113A - Work conveying device - Google Patents

Abstract

PURPOSE:To provide a work conveying device capable of conveying/transferring remainder materials without complicating operation even of the remainder materials after being cut. CONSTITUTION:A work conveying device has characteristics that a carrying conveyor 5 to convey/bring bars WA closer to a cutter 1 is arranged, that the first transfer conveyor 7 to transfer the bars in the first transfer direction crossing the conveying direction of the conveyor 5 is arranged on one side of the carrying conveyor 5 in the direction crossing at right angles to the above-mentioned conveying direction, that the first transfer direction is also set to be reversible, that the second transfer conveyor 9 to transfer remainder materials WA after being cut in the second transfer direction crossing the above-mentioned conveying direction is arranged on the other side of the carrying conveyor 5 situated in the above-mentioned orthogonal direction, that the second transfer direction is set to be reversible, that the edge part of the second transfer conveyor 9 is also arranged in close vicinity to the edge part of the first transfer conveyor 7, that one of the first transfer conveyor 7 and the second transfer conveyor 9 is arranged so as to be extended to a vertical upper position of the carrying conveyor 5, and that the carrying conveyor 5 is also arranged so as to protrude/retreate relatively from/in the upper side of one of the transfer conveyors 7 and 9.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workpiece conveying device capable of appropriately conveying bar materials such as round materials and square materials to a cutting machine.

0002

2. Description of the Related Art A prior art work transfer device is disclosed in Japanese Patent Laid-Open No. 2-212016. To explain the above-mentioned prior art, a roller conveyor is provided at the rear of the cutting machine to transport the bar material in the front-back direction, and a transfer conveyor is provided on the left side of this roller conveyor to transport the bar material in the left-right direction. . The right side of the transfer conveyor extends to a position vertically above the roller conveyor, and the roller conveyor can freely move in and out of the upper side of the transfer conveyor.

Therefore, after a plurality of bars are supplied onto the transfer conveyor, the transfer conveyor is appropriately operated to transfer the plurality of bars to the right toward the roller conveyor, and a predetermined bar is transferred to the roller conveyor. position vertically above. By projecting the roller conveyor above the transfer conveyor, a predetermined bar can be supported by the roller conveyor. Then, by appropriately operating the roller conveyor to move a predetermined bar toward the front toward the cutting machine, the bar can be conveyed to the cutting machine and prepared for cutting. It is possible. Further, the remaining material after cutting was carried out to the right side of the roller conveyor via an appropriate means such as a crane.

0004

[Problems to be Solved by the Invention] However, in the conventional workpiece conveying device as described above, the remaining material after processing is carried out from the roller conveyor via an appropriate means such as a crane, so it is difficult to handle the remaining material. When the cutting process is performed again, the remaining material must be supplied to the transfer conveyor again and then transported to the cutting machine by the roller conveyor, which poses a problem of complicating the work.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a workpiece conveyance device for a cutting machine that can solve the above-mentioned problems.

[0006]

[Means for Solving the Problems] In order to solve the above-mentioned conventional problems, the present invention provides a conveyor for conveying the bar close to the cutting machine, and a conveyor is provided which is perpendicular to the conveying direction. On one side of the conveyor in the direction,
A first transfer conveyor is provided for transferring the bar material in a first transfer direction that intersects with the conveyance direction, and is provided so that the first transfer direction can be reversed, and on the other side of the conveyor in the orthogonal direction, A second transfer conveyor is provided for transferring the remaining material after cutting in a second transfer direction intersecting the conveyance direction, and the second transfer direction is provided to be reversible, and an end portion of the second transfer conveyor is provided, one of the first transfer conveyor and the second transfer conveyor is provided adjacent to an end of the first transfer conveyor, and one of the first transfer conveyor and the second transfer conveyor is provided extending to a position vertically above the transfer conveyor; It is characterized in that it is provided so as to be freely retractable relative to the upper side.

[0007]

[Operation] In the above structure, after an appropriate number of bars are supplied to the first transfer conveyor, the first transfer conveyor is appropriately operated to transfer the bars in the first transfer direction approaching the transfer conveyor. . If the first transfer conveyor is provided extending to a position vertically above the transfer conveyor, the second transfer conveyor extends to a position vertically above the roller conveyor by transferring the bar material in the first transfer direction. Even in the case where the bar is provided vertically above the conveyor, the bar can be positioned vertically above the conveyor. The bar can be positioned vertically above the transport conveyor.

[0008] After the bar is positioned vertically above the conveyor, the bar can be supported by the conveyor by recessing the bar above the one of the conveyors. Then, by appropriately operating the conveyor, the bar material is transported in a transport direction approaching the cutting machine, and the cutting machine performs a desired cutting process on the bar material.

[0009] After cutting the bar material, the conveyor is made to protrude above the one of the conveyors, and the remaining material after the machining is supported by the one conveyor. When the one transfer conveyor is a first transfer conveyor, the first transfer conveyor is appropriately operated to transfer in the first transfer direction to transfer the remaining material to the second transfer conveyor, and further, the remaining material is transferred to the second transfer conveyor. 2. The remaining material is transferred to the roller conveyor in the second transfer direction by appropriately operating the transfer conveyor. Further, when the one transfer conveyor is a second transfer conveyor, the second transfer conveyor is appropriately operated to transfer the bar material in the second transfer direction.

[0010] The above operation is performed on an appropriate number of bars supplied to the first transfer conveyor, and after transferring an appropriate number of remaining materials to the second transfer conveyor, the second transfer conveyor is operated appropriately to 2. Reverse the transfer direction to transfer the remaining material,
The first transfer conveyor is appropriately operated to reverse the first transfer direction and transfer the remaining material. As a result, an appropriate number of remaining materials can be positioned at appropriate positions on the first transfer conveyor, and by performing the same actions as described above, a desired cutting process can be performed on an appropriate number of remaining materials. can.

[0011]

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

Referring to FIGS. 1, 2, and 3, a workpiece conveyance device 3 is provided on the rear side (front side in FIGS. 1 and 2, right side in FIG. 3) of a band saw machine 1 as an example of a cutting machine. The work conveyance device 3 serves to convey bar materials (including residual materials) W such as round materials and square materials to the bandsaw machine 1. The workpiece conveyance device 3 includes a conveyor such as a roller conveyor 5 placed on the rear side of the bandsaw machine 1, and conveyors placed on the left side (the right side in FIGS. 1 and 2, the upper side in FIG. 3) and the right side of the roller conveyor 5. 1 Transfer conveyor 7
, a second transfer conveyor 9. The first and second transfer conveyors 7 and 9 are composed of a plurality of first and second transfer chains 11 and 13.

For details of the roller conveyor 5,
A base frame 15 extending in the front-rear direction is provided on the rear side of the bandsaw machine 1, and a guide device 19 is provided on a lower frame 17 forming a part of the base frame 15. The upper surface of the guide device 19 is inclined so that the right side is lower than the left side, and on the upper side of the guide device 19, a roller support member 21 extending in the front-rear direction is connected to the left and right sides via a fluid pressure cylinder (not shown). It is provided so that it can be moved in any direction.

The roller support member 21 is provided with a plurality of support rollers 23 at appropriate intervals in the front and back direction, and the plurality of support rollers 23 are driven by a drive motor 25, a chain (not shown),
It can be rotated forward or backward via a sprocket (not shown).

Furthermore, a plurality of vertical rollers 27 that support the side surfaces of the bar W when the bar W is conveyed by the roller conveyor 5 are provided so as to be able to move in and out of the upper side of the support roller 25.

More specifically, a hinge shaft 33 extending in the front-rear direction is rotatably provided between the front frame 29 and the rear frame 31, which constitute a part of the base frame 15. A plurality of support arms 35 having the above-mentioned vertical rollers 27 at their tips are integrally attached. In order to rotate the hinge shaft 33, a fluid pressure cylinder 39 is provided on the support frame 37 that constitutes a part of the base frame 15 so as to be able to swing vertically via a hinge pin 41. A piston rod 43 that can freely protrude to the right from
is connected to a plurality of support arms 35 via connection links 45 and the like.

With the above configuration, after the bar W is positioned vertically above the support roller 23 on the first transfer conveyor 7, the guide device 19 is moved leftward (rightward in FIG. 1) and the bar W is moved vertically above the support roller 23 on the first transfer conveyor 7. Position it from the position shown by the imaginary line to the position shown by the solid line. As a result, the support roller 23
can be made to protrude above the first transfer conveyor 7 to support the lower side of the bar W.

Furthermore, by appropriately rotating the hinge shaft 33 via the fluid pressure cylinder 39, the vertical roller 27 can be swung upward to be positioned from the position shown virtually in FIG. 1 to the position shown by the solid line. The side surface of the bar W can be supported.

The support roller 23 and the vertical roller 27
After supporting the bar material W, the plurality of support rollers 23 are rotationally driven in the forward direction via the drive motor 25.
can be conveyed in the forward direction approaching the bandsaw machine 1. Further, after cutting, the remaining material WA can be conveyed in the backward direction away from the bandsaw machine 1 by rotating the plurality of support rollers 23 in the backward direction via the drive motor 25.

Regarding the details of the first transfer conveyor 7, the support frame 29 constituting a part of the base frame 15 is provided with a plurality of support brackets 47 at appropriate intervals in the front and rear direction. A sprocket shaft 49 extending in the front-rear direction is rotatably provided. A sprocket 51 is integrally provided at a position corresponding to each support bracket 47 on the sprocket shaft 49. In order to rotate the sprocket shaft 49, a first transfer motor 53 is provided at an appropriate position on the support frame 29, and the first transfer motor 53 and the sprocket shaft 4
9 are interlocked and connected via a driving pulley 55, a driven pulley 57, and a belt 59.

A support frame 61 constituting a part of the base frame 15 is provided with a plurality of support brackets 63 at appropriate intervals in the front-rear direction, and each support bracket 63 has a sprocket 65 that rotates through a spline shaft 67. It is set up freely.

The first transfer chain 11 for transferring the bar material W in the left-right direction is wound around the sprocket 65 corresponding to each of the sprockets 51, and the support surface of the first transfer chain 11 is provided with a support surface as shown in FIG. For example, a large number of V-shaped recesses 69 are provided.

Regarding the details of the second transfer conveyor 9, the support frame 7 constituting a part of the base frame 15
1 includes a plurality of support brackets 73 at appropriate intervals in the front and back direction.
A plurality of support brackets 73 are provided with spline shafts 75 extending in the front-rear direction. A sprocket 77 is integrally provided at a position corresponding to each support bracket 73 on the spline shaft 75, and the spline shaft 75 includes a pulley (not shown) and a belt (not shown).
It is operatively connected to a second transfer motor (not shown) via.

Further, a plurality of support brackets 79 are provided on the support frame 61 at appropriate intervals in the front and rear direction.
A sprocket 81 is rotatably provided on each support bracket 79 via a sprocket shaft 83. The second transfer chain 13, which transfers the remaining material W in the left-right direction, is wound around each sprocket 77 and the corresponding sprocket 81. The left end of the second transfer chain 13 is connected to the corresponding first transfer chain 13.
It is located close to the right end of the transfer chain 9, and the upper side of the second transfer chain 13 is located at a lower position than the upper side of the first transfer chain 11.

Based on the above configuration, the operation of this embodiment will be explained with reference to FIGS. 5 to 10.

A plurality of rods W1, W are placed on the first transfer conveyor 7.
2. After supplying W3, the first transfer motor 53 is operated appropriately to make the first transfer chain 11 run counterclockwise in FIG. 5 (see FIG. 5(a)), and the ) is positioned vertically above the roller conveyor 5 (see FIG. 5(b)).

After the predetermined bar W1 is positioned vertically above the roller conveyor 5, the support roller 23 and the vertical roller 27 are made to protrude above the first transfer chain 11. The lower and side surfaces of the bar W1 are supported by rollers (see FIG. 6(a)). Then, the roller conveyor 5 is appropriately operated to convey the bar W1 in the front direction (backward direction in FIG. 6) approaching the bandsaw machine 1, and perform a desired cutting process on the bar W1. After completing the desired cutting process, the roller conveyor 5 is appropriately operated to convey the remaining material WA1 in a backward direction away from the bandsaw machine 1.

Next, by running the first transfer chain 11 in the counterclockwise direction in FIG. (see FIG. 6(b)). As a result of this transfer, when the remaining material WA1 is detected by the photosensor 85 appropriately provided vertically above the left part (right part in FIG. 7) of the second transfer chain 13, the remaining material WA1 is transferred to the second transfer chain 13 via the second transfer motor. The transfer chain 13 also runs counterclockwise in FIG.
The remaining material W1' is completely transferred to the second transfer conveyor 9 (
(See Figure 7(a)).

When the remaining material WA1 is no longer detected by the photosensor 85, the operation of the second transfer motor is stopped and the second
When the transfer chain 13 stops running, the first transfer chain 13 is caused to run clockwise in FIG. 8 via the first transfer motor 53 (FIG. 8(b)). As a result, the predetermined bar W2 is positioned vertically above the roller conveyor 5 (see FIG. 8(a)). After the bar W2 is supported by the support roller 23 and the vertical roller 27 (Fig. 8(b)
), when the above-mentioned action is performed on the bars W1 and W2, the remaining materials WA1 and WA2 are
, WA3 can be transferred to the second transfer conveyor 9.

When cutting the remaining materials WA1, WA2, WA3 again, the second
The transfer chain 13 is run clockwise in FIG. 9, and when the photosensor 85 detects the remaining material WA3, the first transfer chain 11 is caused to run clockwise via the first transfer motor 53, and the remaining material WA1, WA2, WA3
(9th direction) to the left (right direction in Figure 9).
(see figure (b)). By this transfer of the remaining materials WA1, WA2, WA3, the remaining materials WA1, WA2, WA3 are placed at appropriate positions on the first transfer conveyor 11 (see FIG. 10), and the remaining materials WA1, WA2, WA3 are By performing these actions, desired cutting processing can be performed on the remaining materials WA1, WA2, and WA3.

According to this embodiment, after the bar material W supplied to the first transfer conveyor 7 is cut, the remaining material W is
A can be positioned on the second transfer conveyor 9,
If the remaining material WA requires further cutting, the second transfer conveyor 9 can be appropriately operated to appropriately transfer the remaining material WA to the first transfer conveyor 7. Therefore, when cutting the remaining material WA again, the work will not become complicated.

It should be noted that the present invention is not limited to the description of the embodiments described above, but can be implemented in various other forms by making appropriate changes.

[0033]

Effects of the Invention As can be understood from the above description of the embodiments, according to the present invention, after the bar material supplied to the first transfer conveyor is cut, the remaining material is transferred to the second transfer conveyor. The remaining material can be placed on the conveyor, and if further cutting processing is required for the remaining material, the second transfer conveyor can be appropriately operated to appropriately transfer and position the remaining material to the first transfer conveyor 7. . Therefore, when cutting the remaining material again, the work will not be complicated.

[Brief explanation of drawings]

FIG. 1 is a view taken along the line II in FIG. 3, and is a view showing a case where a round material is conveyed.

FIG. 2 is a diagram along line II-II in FIG. 3,
It is a figure showing the case where a square timber is conveyed.

FIG. 3 is a plan view of the workpiece conveyance device.

FIG. 4 is a partial perspective view of the first transfer chain.

FIG. 5 is an explanatory diagram of the operation of this embodiment.

FIG. 6 is an explanatory diagram of the operation of this embodiment.

FIG. 7 is an explanatory diagram of the operation of this embodiment.

FIG. 8 is an explanatory diagram of the operation of this embodiment.

FIG. 9 is an explanatory diagram of the operation of this embodiment.

FIG. 10 is an explanatory diagram of the operation of this embodiment.

[Explanation of symbols]

1 Band saw machine 3 Workpiece conveyance device 5 Roller conveyor 7 First transfer conveyor 9 Second transfer conveyor

Claims (1)

[Claims] 1. A conveyor is provided for conveying the bar material close to the cutting machine, and on one side of the conveyor in a direction perpendicular to the conveyance direction, in a first conveyance direction intersecting the conveyance direction. A first transfer conveyor for transferring the bar material is provided, and the first transfer direction is provided to be reversible, and cutting is performed on the other side of the transfer conveyor in the orthogonal direction in a second transfer direction that intersects with the transfer direction. A second transfer conveyor is provided for transferring the leftover materials, the second transfer direction is reversible, and an end of the second transfer conveyor is provided close to an end of the first transfer conveyor, 1st
One of the transfer conveyor and the second transfer conveyor is provided to extend to a position vertically above the transfer conveyor, and the transfer conveyor is provided so as to be freely retractable relative to the upper side of the one transfer conveyor. Workpiece conveyance device.