JPH08174258A - Rotary skid for metal sheet machine - Google Patents

Abstract

PURPOSE: To provide a rotary skid for a metal sheet machine such that a placed metal sheet is not caught in a conveyor type rotary skid. CONSTITUTION: A metal sheet W is supported, travelled and supplied by a rotary skid 5 to the prescribed position of a laser beam machine (metal sheet machine). The rotary skid 5 is so structured that plural skid members 33 are attached, at prescribed spaces between a pair of chains 31 which are wound through the front and rear sprockets 29 among those provided freely rotatably front and rear, left and right, on both sides in the advancing direction. The skid member 33 is attached between a pair of chains 31 so that the upper end may coincide with the pitch circle 35 of the sprocket 29. In addition, the skids are so designed that the adjacent skid members 33 are free from interfering with each other, that they are strong enough to fully support the metal sheet W, and that they are shaped so as to be capable of supporting a small sized metal sheet W without dropping it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary skid of a plate material processing machine, and more particularly to a rotary skid of a plate material processing machine capable of preventing pinching of a plate material.

[0002]

2. Description of the Related Art Conventionally, what supports a plate material W in a laser processing machine 101 during processing is a skid 105 placed on a processing table 103 as shown in FIG. 8, and this skid 105 is shown in FIG. A lattice type skid 105 as shown in FIG. This lattice type skid 105 can generally be moved to the processing table 103 or moved on the processing table 103, but the plate material W is placed on the upper surface and moved as a whole as a single plate. To do.

On the other hand, as a skid for moving only the plate material W placed on the upper surface without moving the processing table 103, there is a conveyor type rotary skid 107 as shown in FIG. In the rotating skid 107, the belt member 11 wound around the left and right rollers 109, 109
A skid member 113 is attached to one surface, and a surface or a point on which the plate material W is placed rotates and travels together with the belt member 111 to move the plate material W.

[0004]

However, in such a conventional technique, when the rotary skid 107 is rotationally traveled, the upper end portion of the skid member 113, that is, the plate material W, is directly moved around the roller 109. The distance between the supporting points is wider than that of the central portion between the rollers 109.

For this reason, as shown in FIGS. 11A to 11C, the small plate material W may fall between the adjacent skid members 113. In such a case, if the depressed plate material W does not fall and is sandwiched between the skids, there is a risk that the rotary skid 107 will be adversely affected if the skid interval becomes narrow again in the lower central portion of the rotary skid 107. is there.

The object of the present invention was made in view of the above-mentioned conventional techniques, and provides a rotary skid for a plate material processing machine which does not sandwich a plate material placed on a conveyor type rotary skid. Especially.

[0007]

According to a first aspect of the present invention, there is provided a rotary skid for a plate material processing machine, which is rotated to support and move a plate material processed by the plate material processing machine to achieve the above object. A rotary skid of a plate material processing machine movably provided, wherein the rotary skid is provided rotatably on the front, rear, left, and right sides of the moving direction, and a pair of chains wound between the front and rear sprockets. When,
A plurality of skid members mounted at a predetermined interval between the pair of chains are provided.

According to a second aspect of the present invention, there is provided a rotary skid for a plate material processing machine according to the first aspect, wherein the upper end of the skid member is aligned with the pitch circle of the sprocket. Thus, it is characterized in that it is attached between the pair of chains.

Further, the rotary skid of the plate material processing machine of the invention according to claim 3 is the rotary skid according to claim 1, which has sufficient strength to support the plate material without the adjacent skid members interfering with each other. At the same time, a skid member having a shape capable of supporting a small plate material without dropping it is characterized.

[0010]

In the rotary skid of the plate material processing machine according to the first aspect, the rotary skid supports the plate material and rotates, and supplies the plate material to a predetermined position of the plate material processing machine for processing. This rotary skid is one in which a plurality of skid members are attached at a predetermined interval between a pair of chains wound between front and rear sprockets of a sprocket rotatably provided on the front, rear, left, and right sides in the moving direction. The plate material is placed on the skid member, and the chain is moved by rotationally driving the sprocket to move the plate material.

According to a second aspect of the present invention, there is provided a rotary skid for a plate material processing machine, wherein a skid member is mounted between the pair of chains so that an upper end of the skid member coincides with a pitch circle of the sprocket according to the first aspect. Even when the member rotates around the sprocket, the space between the skid member and the adjacent skid does not increase.

Further, in the rotary skid of the plate material processing machine according to claim 3, when determining the shape of the skid member, the adjacent skid members do not interfere with each other and have sufficient strength to support the plate material. The shape is such that it can support small plates without dropping them.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the entire laser processing machine 1 as a plate processing machine. In this laser processing machine 1, a rotary skid 5 for placing and moving and positioning a plate material W inside a box-shaped frame body 3 having an open upper surface is provided movably in the X-axis direction. Further, a gate-shaped frame 7 having a gate-shaped shape is erected while straddling the rotary skid 5.

The gate type frame 7 is composed of right and left pillar frames 9
It is composed of L and 9R, and an upper frame 11 connecting the upper ends of the left and right pillar frames 9L and 9R in the Y-axis direction. The upper frame 11 is provided with a Y-axis carriage 13 which is movable in the Y-axis direction, and is moved and positioned in the Y-axis direction along the upper frame 11 by a driving device (not shown).

The Y-axis carriage 13 is provided with a machining head 15 which can be moved up and down in the Z-axis direction by a Z-axis servo motor (not shown). A nozzle 17 for irradiating the plate material W with the laser beam LB is attached to the lower end of the processing head 15. Therefore, the space between the nozzle 17 and the plate material W is adjusted by vertically moving the processing head 15 in the Z-axis direction and positioning it.

On the other hand, a laser oscillating device for oscillating the laser beam LB (not shown) is provided outside the right columnar frame 9R. From this laser oscillator, a waveguide 19 is provided along the upper frame 11 along the Y-axis carriage 13
The nozzle 17 is attached to the tip of the processing head 15. The waveguide 19 is expandable and contractable in the upper frame 11 and the Y-axis carriage 13.

Therefore, the laser beam LB oscillated in the laser oscillating device reaches the processing head 15 through the waveguide 19 and is irradiated from the nozzle 17 toward the plate W.

Further, the portal frame 7 is provided with a CNC device 21 as a control device. This CNC device 2
Reference numeral 1 controls the movement and positioning of the machining head 15 described above, the distance between the nozzle 17 and the plate W, and the movement of the rotary skid 5.

2 and 3 show the details of the rotary skid 5. In this rotary skid 5, the rotary shaft 23
Is rotatably provided on the frame body 3.
Is driven by a drive motor 25 and a transmission mechanism 27 such as a gear device.
It is driven to rotate via. Also, the rotary shaft 23
Sprockets 29 are mounted on both ends of the chain, and left and right chains 31 are wound between the front and rear sprockets 29. A large number of skid members 33 are attached between the left and right chains 31, 31 at predetermined intervals, and constitute the rotary skid 5 as a whole.

As shown in FIG. 4, the skid member 33 is
Is attached to the chain 31 so that the upper surface of the is aligned with the pitch circle 35 of the sprocket 29. Therefore, the distance A on the upper surface of the skid member 33 at the supporting portion is the same as the distance B when the chain 31 travels on the sprocket 29 portion, so that the upper end of the skid member 33 is prevented from expanding. However, since the space becomes narrower at the lower end of the skid member 33, the skid member 33 shown in FIGS.
The adjacent skid members 33 are shaped so as not to interfere with each other.

FIGS. 6A and 6B and FIGS. 7A and 7B,
(B) also shows an example of the shape of the skid member 33. Adjacent skid members 33 in any shape
They do not interfere with each other even in the sprocket part, the skid member 33 supports the plate material W from below, so that a certain strength can be ensured. Since the skid member 33 is a consumable item, a simple shape is desirable, and force in the traveling direction is required. However, it is designed to satisfy the requirements such as low distortion.

According to the rotary skid 5 of such a plate material processing machine, since the skid member 33 is attached to the chain 31 so that the upper surface thereof coincides with the pitch circle 35 of the sprocket 29, the skid member at the splint portion is 33
The distance between the upper surfaces and the distance at the sprocket 29 portion are the same. As a result, the upper end of the skid member 33 is prevented from expanding, so that the plate material W can be prevented from falling into the gap between the skid members 33.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, although the laser processing machine 1 is used as the plate processing machine in the above embodiment, the invention is not limited to this, and the present invention is also applicable to, for example, a drilling machine for drilling.

The shapes of the skid member 33 shown above are merely examples, and the shapes are not limited to these shapes.

[0026]

The rotary skid of the plate material processing machine according to the first aspect of the present invention is as described above. Between a pair of chains,
It is configured by mounting a plurality of skid members at predetermined intervals.The plate member is placed on the skid member, and the chain is moved by rotating the sprocket to move the plate member. It is possible to reduce the contact area with the skid to reduce damage to the skid during laser processing and drilling, and to move the plate material to a predetermined position of the plate material processing machine by the rotational traveling of the rotary skid itself. Further, since the rotary skid is composed of a large number of independent skid members, if the skid member is damaged, only the skid member needs to be replaced.
The life of the rotating skid is extended. Further, it is possible to reduce the maintenance cost.

In the rotary skid of the plate material processing machine of the present invention according to claim 2, the skid member is mounted between the pair of chains so that the upper end of the skid member coincides with the pitch circle of the sprocket. Even when it goes around, the gap between the skid member and the adjacent skid at the upper end portion, that is, the gap for supporting the work W does not increase. For this reason, when a small plate member falls inside the skid when it goes around the sprocket, it is possible to avoid damage to the skid member due to the plate member being sandwiched between the adjacent skid members when traveling through the sprocket after passing through the sprocket.

Further, in the rotary skid of the plate material processing machine according to claim 3, when determining the shape of the skid member, the adjacent skid members do not interfere with each other and have sufficient strength to support the plate material. Since the small plate member can be supported without dropping, the plate member can be reliably supported without dropping inside the skid, and damage to the skid member due to interference between the skid members can be avoided.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire laser processing machine as an embodiment to which a rotary skid of a plate material processing machine according to the present invention is applied.

FIG. 2 is a partially omitted enlarged plan view showing details of a rotary skid.

FIG. 3 is a side view seen from the direction III in FIG.

FIG. 4 is an explanatory diagram showing a positional relationship between a chain and a skid member.

5A and 5B are a plan view and an end view showing the shape of another embodiment of the skid member.

6A and 6B are a plan view and an end view showing the shape of another embodiment of the skid member.

7A and 7B are a plan view and an end view showing the shape of another embodiment of the skid member.

FIG. 8 is a schematic explanatory view showing a processing state in a laser processing machine as a conventional plate material processing machine.

FIG. 9 is a perspective view showing an example of a skid used in a conventional laser processing machine or the like.

FIG. 10 is an explanatory diagram showing a state in which a plate material is moved by a conventional rotary skid.

FIG. 11 is an explanatory diagram showing a state where a plate material is sandwiched in a conventional rotary skid.

[Explanation of symbols]

 1 Laser processing machine (plate material processing machine) 5 Rotating skid 29 Sprocket 31 Chain 33 Skid member 35 Pitch circle W Plate material

Claims (3)

[Claims] 1. A rotary skid of a plate material processing machine, which is rotatably provided to support and move a plate material processed by the plate material processing machine, wherein the rotary skids are front, rear, left and right in a moving direction. And a pair of chains wound between the front and rear sprockets, and a plurality of skid members mounted at predetermined intervals between the pair of chains. A rotary skid for plate processing machines. 2. The rotary skid for a plate material processing machine according to claim 1, wherein the skid member is mounted between the pair of chains so that an upper end of the skid member coincides with a pitch circle of the sprocket. 3. A skid member having a shape such that adjacent skid members do not interfere with each other, have sufficient strength to support a plate material, and can support small plate materials without dropping them. Item 2. A rotary skid for a plate material processing machine according to item 2.