JPH02274496A - Suction holding device for automatic multilayer cutting machine - Google Patents

Abstract

PURPOSE:To prevent the reduction in suction force by providing a 1st vacuum pump sucking the whole body of sheet like members laminated at each section unit of a cutting face and 2nd vacuum pump sucking automatically the cutting part according to the movement of a cutting head via a solenoid by being branched from this 1st vacuum pump suction system. CONSTITUTION:In the case of cutting a cloth 6, for instance, as for a sheet like member by a cutting edge 4 of a cutting part 7, first of all the whole cloth 6 is fixed by its suction in the respective dividing areas 5-1-5-3 by a 1st vacuum pump 15 having the pressure of small capacity. The cutting and dividing areas 5-1-5-3 of the cloth 6 are then sucked by a 2nd vacuum pump 16 having the pressure of a large capacity, but still a solenoid 19-1 is energized to suck the dividing area 5-1 which is to be cut from now and they are sucked stronger further so that the cloth of the cutting part may not be slid. Thereafter, the cutting edge 4 is moved to a specific cutting position to cut the cloth. A solenoid 19-2 is then energized to perform the succeeding cutting.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for suctioning and holding sheet-like members used in apparel, automobiles, shoes, and the like.

[Conventional technology]

A sheet of cloth to be cut, such as paper or vinyl, is spread out and stacked on the cutting surface, and these are suctioned and fixed by a vacuum pump, and the sheet material is cut by a cutting head that moves relative to the cutting surface. Conventional automatic multi-layer cutting machines that cut sheets either hold the sheet-like material by suctioning the entire cutting table or only a pre-specified area, or they designate the suction area by installing a sensor or other device at a fixed distance. There is.

Fig. 2 is a perspective view showing the overall configuration of a cutting machine, and Fig. 3 is a sectional view of a cutting table showing an example of a conventional cutting machine. It is divided into several divided areas 8 by a wall 9, and there are many small suction holes on the brush side. A brush-like suction surface 21 is provided thereon.

Each divided area 8 is provided with a suction port 10, which is connected to a vacuum pump 14 via a chamber 11 by a plumbing pipe 17. The sheet-like member 6 on the upper part of the cutting table 2 is attached to the vacuum pump 1
4 is attracted and identified by energizing.

In addition, 3 is a cutting head which is equipped with a blade 4 and can be moved to any location on the cutting table 2 in the X and Y directions, 5 is a completely sealed divided area of the present invention which will be described later, and 7 is a cutting part.

[Problem that the invention seeks to solve]

However, although the cutting table 2 is finely divided by the partition wall 9, the brush-like suction surface 21 is not partitioned by the partition wall 9, so the adsorption of the sheet-like member 6 is inevitably weak due to air leaking from the gaps between the brushes. In order to compensate for this, the capacity of the vacuum pump must be increased. For this reason, costs are incurred in terms of equipment such as piping and wiring attached to this. In addition, due to noise issues, a soundproof room is required.
There was a problem with the complementary poles.

The present invention was devised in view of the above-mentioned points, and its purpose is to perform automatic multilayer cutting that does not require a large-capacity vacuum pump, has low noise, and requires low equipment costs. The purpose of the present invention is to provide a suction holding device for a machine.

[Means for solving problems]

That is, the means for achieving this purpose is to spread and stack sheet-like materials such as paper, vinyl, polyethylene, etc. to be cut on the cutting surface, and to fix them by suction with a vacuum pump.

In an automatic multilayer cutting machine that cuts the sheet-like member by a cutting head that moves relative to the cutting surface, the cutting surface is divided into a plurality of sections, and a solenoid is activated in correspondence to each section of the divided table. a first vacuum pump that suctions the entire sheet-like member stacked in each compartment; and a first vacuum pump that is branched from the first vacuum pump suction system and that cuts the sheet according to the movement of the cutting head via the solenoid. A second vacuum pump that automatically suctions the part ' to be removed is provided, and a check valve is provided to prevent interaction between these two vacuum pumps.

As a result, the software detects the positional coordinates from the origin of the cutting table, which has divided areas that are completely sealed in advance, to partially and automatically suction the cutting table.

[For production]

Its operation will be explained in conjunction with the examples described later.

Hereinafter, one embodiment of the suction holding device of the present invention will be described in detail based on the drawings.

〔Example〕

FIG. 1 is a block diagram showing the main parts of the present invention, and the structure will be explained with reference to FIG.

The cutting table 2 of the cutting machine 1 is provided with divided areas 5-1 to 3 which are completely sealed and divided into a plurality of sections. Sheet-like members 6 are stacked. A large number of small holes are bored in the cutting table 2. In addition, each divided area 5-1
- 3 are provided with a suction area, this area is equipped with one suction port 10, and one side is connected to a first vacuum pump 15 that sucks the entire sheet-like member 6 through a chamber 12.
The other goes to cutting via the solenoids 19-1 to 19-4 and the chamber 13.

It is branched off by a cheese union 1B to a second vacuum pump 16 which automatically suctions the portion to be cut according to the movement of the door 3, and these are connected by piping 17, respectively. Further, a check valve is provided on the suction port side of the first vacuum pump 15, and this is for the purpose of preventing mutual interference between the first vacuum pump 15 and the second vacuum pump 16. This prevents the second vacuum pump 16, which has a larger displacement than the first vacuum pump 15, from suctioning.

Thus, in the suction holding device of the automatic multi-layer cutting machine configured as described above, when cutting a sheet-like member such as cloth, for example, with the cutter 4 shown in FIG. First vacuum pump 1 with pressure
5, the entire cloth is suctioned and fixed in each divided area 5-1-3.

Next, the cutting and dividing area S-t~3 of the cloth is suctioned by the second vacuum pump 16 having a large capacity and pressure.
-1, the solenoid 19-1 is energized, and the solenoid 19-1 is energized, and the solenoid 19-1 is sucked even more strongly so that the part of the cloth to be cut does not shift.

Thereafter, the knife 4 is automatically moved to a position where the cloth is to be cut by a movement command in the X, Y, and Z axis directions from a control device (not shown), and cuts the cloth. Then, before cutting the cloth at the next location, for example, the solenoid 19L2 of the dividing area 5-2 is energized, and then the blade 4 is moved in the same manner as described above.
In this way, before cutting, the solenoid in that part is energized and sucks the target cut part 7. Note that the solenoids 19-1 to 19-4 are automatically and partially controlled by software detecting the X and Y coordinate positions from the origin of the cutting table 2 so as not to consume excess power.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to prevent a decrease in suction power without increasing the pump capacity, thereby achieving effects such as cost reduction and noise prevention in terms of equipment, and furthermore, sheet-like members can be accurately suctioned. It became possible to hold the garment and cut the cut parts 7 from the garment.

Therefore, the present invention is extremely useful in practice.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of main parts showing an embodiment of the present invention, FIG. 2 is a perspective view showing the overall configuration of a cutting machine, and FIG. 3 is a sectional view of a cutting table showing an example of the conventional cutting machine. 1... Cutting machine, 2... Cutting table, 3...
...Cutting head, 4...Knife, S-t~3
...Divided area, 6... Sheet member, 7. Old cut parts, 8... Divided area,
9...Partition wall, 10.Old...Suction port, 11.
12, 13...Cha7ha+, 14,15
, 16... Vacuum pump, 17... Piping pipe, 18... Cheese union, 19-1
~4... Solenoid, 20. Old... Check valve. Figure 1

Claims (1)

[Claims] The sheet materials to be cut, such as cloth, paper, vinyl, polyethylene, etc., are spread out and stacked on the cutting surface, and they are suctioned and fixed by a vacuum pump, and then the cutting head moves with respect to the cutting surface. An automatic multi-layer cutting machine for cutting a sheet-like member divides the cutting surface into a plurality of sections, and is equipped with a solenoid corresponding to each section of the divided table, and a sheet-like cutting machine laminated in each section. a first vacuum pump that suctions the entire part; and a second vacuum pump that is branched from each suction system of the first vacuum pump and that automatically suctions the part to be cut according to the movement of the cutting head via the solenoid. 1. A suction holding device for an automatic multilayer cutting machine, characterized in that it is equipped with a vacuum pump (2) and a check valve to prevent interaction between the two vacuum pumps.