JPH03294141A - Work shooter for working machine - Google Patents

Abstract

PURPOSE:To improve safety by providing a safety cover making contact with the base part rear surface of a work shooter and rotating following the operation of the work shooter. CONSTITUTION:A safety cover 75 for burying an opening part formed at the time of tilting a work shoot table 29 is provided between a center table 7 and the work shoot table 29. When a work shooter 5 is tilted in a position B, a safety cover body 85 also follows and rotates to the position shown by the two-dot chain line to clog the opening part with the center table 7 formed by the tilt of the work shooter 6, so that a work or a hand is caught between the work shooter 5 and the center table 7 when the work hooter 5 is returned to horizontal state, and safety can be improved.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is applicable to a workpiece for carrying out cut products or scraps installed in a processing machine such as a laser processing device or a plasma processing device. Regarding shooters.

(Prior Art) Conventionally, a processing machine such as a laser processing device or a plasma processing device is provided with a work shooter for carrying out cut products or scraps.

This work shooter is configured to carry out products or offcuts by combining vertical movement in a horizontal state and tilting state.

(Problem to be Solved by the Invention) By the way, when the above-mentioned conventional work shooter is in a tilted state, an opening is created between the adjacent center table and the work shooter returns to a horizontal state from the tilted state. When a workpiece or a hand is caught between the workshooter and the center table, there is a safety problem.

An object of the present invention is to provide a work shooter for a processing machine that improves safety by providing a safety cover to prevent workpieces or hands from getting caught when the work shooter operates, in order to improve the above-mentioned problems. be.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a work chute that supports cut products or scraps in a work processing section of a cutting machine in a horizontal state. The work shooter of the processing machine is constructed by providing a safety cover that is movable vertically and in an inclined state, and a safety cover that contacts the rear surface of the base of the work shooter and rotates following the operation of the work shooter.

(Function) By employing the work shooter of the processing machine of the present invention, a safety cover is provided that comes into contact with the rear surface of the base of the work shooter and rotates following the operation of the work shooter.

Therefore, when the work shooter operates and returns from an inclined state to a horizontal state, the opening that occurs between the work shooter and the adjacent center table is closed by the safety cover.
During this time, the workpiece or hands will not be pinched.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. Examples of processing machines include laser processing equipment, plasma processing equipment, etc., and in this embodiment, a laser processing equipment will be described as an example.

Referring to FIG. 2, a workpiece chute 5 is provided in a part of the workpiece and cutter 3 (partially not shown) of the laser processing machine 1, and a center table 7 (partially (not shown) is provided.

A lift arm 11 is provided with a fluid-pressure-operated drive unit 9 for tilting the work shooter 5, and a dust collector is provided with an upward opening located directly below the processing head 13 (partially not shown) of the laser processing machine 1. A vibrator 15 is vertically installed on the work shooter 5.

Directly below the dust collection vibrator 15, a work chute frame 19 equipped with a scrap box]7 is provided.

With the above configuration, the workpiece W or scraps cut by the laser processing machine 1 is fired by the work chute 5, which displaces the workpiece W or scraps from a horizontal state to an inclined state, and transports the workpiece W or scraps into a storage box (not shown). do.

Incidentally, spatter or large dust generated during processing passes through the dust collection vibrator 15 and falls into the scrap box 17 and is accumulated therein.

The structure of the work shooter 5 is that the nozzle 2 of the processing head 13
A cutting plate (not shown) located directly below the free bear holder 23 and opened upward is embedded in the center of the free bear holder 23. A free bearing 25 is disposed at a suitable position in this free bear holder 23, and a cover 27 prevents damage from collision with the workpiece W.

The free bear holder 23 is fixed to the work chute table 29 with a plurality of bolts or the like.

The elevating arm 11 for tilting the work chute 5 has a drive base 31 fixed to a side wall of a work chute frame 19 with bolts 33, which will be described later. A hydraulic cylinder, such as a hydraulic cylinder, which is a hydraulically operated drive unit 9, is latched to a bracket 35 provided at the lower part of the drive base 31 (lower side in FIG. 2). A guide shaft 37 is erected on both sides of the hydraulic cylinder, which is the driving part 9, parallel to the cylinder, and a slider 39 guided by the guide shaft 37 is engaged, so that the slider 39 and the hydraulic cylinder, which is the driving part 9, are engaged. When connected and actuating the drive section 9, the slider 39 moves up and down.

L-shaped lifting arms 11 are attached to the bolts 4 on both sides of the slider 39 (in the direction perpendicular to the plane of the paper in FIG. 2).
It is fixed integrally by the 1st grade.

A tenth lug 43 is rotatably supported on a shaft 45 at the upper end of the lifting arm 11 (on the left side in FIG. 2).
A 20th lug 47 is rotatably supported by a shaft 45 on the rear end side.

In addition, on the back surface of the work chute table 29 of the work shooter 5 mentioned above, there is a transfer surface 49 into which the tenth lug 43 is transferred, a first groove 51 into which the twentieth lug 47 is fitted, and a workpiece which will be described later. A second groove 55 is provided in which the fixed roller 53 provided on the chute frame 19 fits. Furthermore, a spring 57 is stretched between the work chute table 29 and the lifting arm 11, and constantly pulls the work chute table 29 toward the lifting arm 11. In other words,
The 10th la 43 is always in contact with the transfer surface 49, and the 20th la 4
7 is biased to fit into the first groove 51.

With the above configuration, the laser beam and assist gas are irradiated and ejected from the nozzle 21 of the processing head 13 onto a predetermined cutting portion of the workpiece W, thereby performing thermal cutting processing.

At this time, the work shooter 5 supports the work W in a horizontal state as shown in FIG. In other words, the cylinder, which is the fluid-pressure-operated drive unit 9, is at its upper limit.

When the thermal cutting process is completed and the product is discharged, the cylinder, which is the driving part, is lowered. As the cylinder descends, the slider 3 is guided by guide shafts 37 on both sides.
9 is a lifting arm 1 that has descended and is fixed to its three sliders.
1 goes down. When the elevating arm 11 descends, the work chute table 29 mounted on the 10th and 20th la 47 provided on the elevating arm 11 descends in parallel by a set amount, and as shown in FIG. It reaches position A shown by the dotted chain line. The purpose of descending in parallel is to allow the product to be discharged without coming into contact with the frame of the work table 3, etc., even if the work W is thick.

Furthermore, when the lifting arm 11 descends, the second groove 55 provided in the work chute table 29 is fitted into the fixed roller 53 provided in the work chute frame 19. The work chute table 2 serves as a tilting fulcrum for this fixed roller 53.
9 begins to slope, the 10th lug 43 rolls and transfers on the transfer surface 49 of the work chute table 29, and the 20th lug 47 leaves the first groove 51. At the lowering limit of the cylinder, which is the drive unit 9, the work chute table 29 reaches a predetermined tilted position (position B shown by the two-dot chain line in FIG. 2), and the product slides down the chute provided on the work chute frame 19 and moves as shown in the figure. Although omitted, it is discharged into a storage box or the like.

The work chute table 29 is returned to the horizontal state shown in FIG. 2 by performing the above-described operations in reverse.

The work chute frame 19 has an inverted T-shape and consists of an upright part 59 and a horizontal part 61, the above-mentioned dust collection pipe 15 is inserted into the upright part 59, and a lid 63 is provided at the upper end opening. Further, a scrap box 17 is built in the horizontal part 61, and one side of the horizontal part 61 is provided with a dust collection duct that connects to a suction device (not shown).

Incidentally, a chute 65 for discharging the product when the work shooter 5 mentioned above is tilted is provided at the upper part of the five upright parts.

The work chute frame 19 is supported by a plurality of legs 69 equipped with bolts 67 so that the installation height can be adjusted freely, and the work chute frame 19 is provided between the work chute frame 19 and the machine stand 71 of the machine body.

Note that the upright portion 5 of the work chute frame 19 mentioned above
A fixed roller 53 that engages with a second groove 55 provided in the work chute table 29 is rotatably supported on the shaft 73 at the upper part of the work chute table 29 . Furthermore, in order to fill the opening that occurs when the work chute table 29 is tilted between the center table 7 and the work chute table 29, an upright part 59 provided upright on the work chute frame 19 is provided with a -E surface. A safety cover 75 is provided.

Referring to FIG. 1, the structure of this safety cover 75 is as follows:
A seat plate 77 is fixed to the rear surface of the base of the work chute table 29 (on the right side in FIG. 1) with bolts 79. On this seat plate 77 is a work chute table 29.
A hinge 8] is fixed to the side, and an L-shaped spring support plate 83 is fixed to the side opposite to the work chute table 29. The hinge 81 is locked at one end of the safety cover main body 85 and is rotatable.

The safety cover main body 85 has a fan shape and has a protective plate 87 on its outer periphery.A roller 91 is provided on the surface of the protective plate 87 that protrudes a little from the vertical surface 89. The shaft 95 is rotatably supported via a bush 97 on a shaft 95 provided on a rib 93 . The width of the protection plate 87 of the safety cover main body 85 in the longitudinal direction is long enough to fill the opening when the work shooter 5 is tilted.

Further, a shaft 99 is attached to the rib 93 of the safety cover main body 85, and a boss portion 103 supporting the spring guide rod 1°1 is rotatably provided on this shaft 99.
01 passes through a hole 105 provided in the spring support plate 83. Boss portion 103 and the spring support plate 8
A bullet 107 (for example, a coil spring or the like) is wound around the spring guide rod 101 and is provided between the safety cover body 85 and the hinge 81 in a counterclockwise direction. ing.

With the above configuration, the roller 9 provided on the safety cover main body 85
1 is in constant contact with the side surface of the cover 27 provided on the work chute table 29 due to the elastic force of the bomb 107. Therefore, when the work shooter 5 tilts to position B shown by the two-dot chain line in FIG. The opening with the center table 7 that occurs due to this can be closed.

Therefore, when the work shooter 5 returns to the horizontal state from the time of tilting, the work W or hand does not get caught between the work shooter 5 and the center table 7, and safety can be improved.

Note that the present invention is not limited to the embodiments described above, and can be implemented in other embodiments by making appropriate changes.

[Effects of the Invention] As can be understood from the above description of the embodiments, according to the present invention, the safety cover is brought into contact with the rear surface of the base of the work shooter, and the safety cover is rotated to follow the tilting movement of the work shooter. By moving the center table, an opening that is generated between the work shooter and the center table is closed when the work shooter returns from a tilted state to a horizontal state.

Therefore, the workpiece or hand will not be caught in this opening, and safety can be improved.

[Brief explanation of the drawing]

FIG. 1 shows the main parts of the present invention, and FIG. 2 is an enlarged sectional view taken in the direction of arrow I in FIG. 2, and FIG. 2 is a sectional view of a work shooter in a laser processing machine according to an embodiment of the present invention. 1... Laser processing machine 5... Work shooter 75.
··safety cover

Claims (1)

[Claims] A work shooter for supporting the cut product or scrap material is provided in the work processing section of the processing machine so as to be movable vertically in a horizontal state and in an inclined state. A work shooter for a processing machine characterized by being equipped with a safety cover that rotates following the movement of the workpiece.