JPH0366598A - Cutting device for high speed fluid - Google Patents

Abstract

PURPOSE:To prevent direct abutting of a high speed fluid launched from a high speed fluid launching means on a placing means and to prevent the damage of this placing means by arranging a receiver means to receive the fluid at the space part composed with the partial displacement of the placing means by a displacement means. CONSTITUTION:A high pressure water is discharged from a nozzle 26 according to the traveling of the nozzle 26 and a film 32 and cloth like body 31 placed on a timing belt 1 are cut by this force. In this case, the discharged high pressure water is discharged into the closed space formed by a receiver box body 8 and belt 22, spread in this closed space and subjected to energy releasing. The noize is thus not leaked to the external part and the timing belt 1 which is a placing means is not damaged by the high speed fluid.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an apparatus for cutting sheet-like materials such as textiles, textiles, non-woven fabrics, fur, films, etc., particularly sheet-like materials with low rigidity, using high-speed fluid.

[Prior art and its problems]

Conventionally, when cutting cloth-like materials in the production of custom-made clothing, a worker would spread the cloth-like material on a cutting table, place a paper pattern on it, or draw a cutting pattern and use the cutting tool along its periphery. It is disconnected by proceeding. In this case, hold the cloth-like object with one hand so that it does not move.
Because it is necessary to operate the cutting tool with the other hand to cut,
It has poor workability and requires highly skilled techniques. With the recent development of automatic cutting machines, this highly technical work can now be accomplished easily and efficiently using only simple mechanical operations. However, the cutters of these automatic cutting machines are of the same type as conventional manual cutters in which a shearing blade with a considerable width moves reciprocatingly, so it is difficult to cut correctly along the cutting shape in areas with a small radius of curvature. However, the disadvantage that the blade partially deviates from the cutting pattern remains. Therefore, since the cut figures cannot be made to closely approach each other, it is necessary to provide a considerable distance between the cut figures, resulting in poor utilization efficiency of the cloth-like material. Furthermore, at the acute angle part of the cutting figure, remove the shearing blade from the cloth, change the direction of the blade to the next cutting direction, and feed it by the width of the blade, then lower the shearing blade to the cloth and cut. Need to restart. Therefore, it is not only inefficient, but also requires control of the direction and elevation of the blade, making the device expensive. Therefore, a cutting method using a laser has been proposed as a new cutting method to solve the above-mentioned drawbacks. According to this method, there is no need for physical contact with the cloth-like object, and unlike the conventional method, no pressing force is generated in the direction of movement of the cutter, so the force required to hold the cloth-like object is small.
Also, a blade polishing device is not required. Furthermore, when applied to cutting a cloth made of 100% synthetic fibers or a cloth made partly of blended fibers, the synthetic fibers at the cut portion are fused to each other and have the advantage that no fraying occurs. However, this I/-laser cutting method also has its weaknesses, namely, that it burns off, which causes a bad odor, and that the focus of the laser does not have high precision on the cloth-like material to be cut. It has been pointed out that this method is not suitable for stacking many layers of cloth and cutting them at once. Therefore, a method of cutting cloth-like materials using a high-speed fluid such as high-pressure water, which does not have the disadvantages of such laser-based cutting methods, is attracting attention. Then, a method was proposed in which a cloth-like object was placed on a device consisting of, for example, a wire mesh or a honeycomb member, and the cloth-like object was cut by spraying high-pressure water from above.
Publication No. 4266, Special Publication No. 59-358, Special Publication No. 59-
No. 29400). However, this proposal has the fatal drawback that the high-pressure water used to cut the cloth also hits the mounting means, which damages the mounting means itself. This device also had the disadvantage of generating a lot of noise when it was used, and was far from being put to practical use. In addition, it has been proposed that this mounting means be constructed of a wooden bed so that it will automatically restore itself if the FI mounting means is damaged due to high pressure water hitting the mounting means (Japanese Patent Publication No. 5918200 No. 11).
), but this requires a refrigeration device to provide the ice bed, which makes the device larger and more complex, and also increases running costs. The environmental temperature is extremely low, workability is poor, and practicality is poor.

[Disclosure of the invention]

The present inventor aims to provide a high-speed fluid cutting device in which the high-speed fluid ejected from the high-speed fluid ejecting means does not hit the mounting means for placing the object to be cut, and the mounting means is not damaged. purpose. Further, the present invention not only prevents the high-speed fluid from the high-speed fluid ejecting means from hitting the mounting means, but also allows the high-speed fluid ejecting means to move freely in two dimensions, that is, in the X-Y plane. The purpose of the present invention is to provide a high-speed driftwood cutting device. The present invention has been made to achieve the above object,
A mounting means, a displacement means for displacing a part of the mounting means to a downward position, and a receiver means for receiving fluid disposed in a space defined by a partial displacement of the mounting means by the displacement means. , a high-speed fluid ejecting means disposed above the mounting means to face the receiver means, a first moving means for moving the displacement means, the receiver means and the high-speed fluid ejecting means in the left-right direction; The high-speed fluid ejecting means is
and a second moving means for moving along a space formed by partially displacing a device stage. In the above-mentioned high-speed fluid cutting device, fixing means for fixing the object placed on the first mounting means may be provided corresponding to the side position of the displacing means, and the receiver means may be provided with a fixing means for fixing the object placed on the first mounting means. It is desirable to provide a lid with an opening that moves in accordance with the movement of the high-pressure fluid ejecting means. The placing means is made up of an endless type belt, and a plurality of guide rollers are attached to this belt to displace a part of the belt to a lower position.
A space for arranging the receiver means can be configured. Further, in the above-mentioned high-speed fluid cutting device, a traveling/stopping means for stopping the belt is provided, and the traveling/stopping means performs a traveling operation when the first moving means stops moving the displacement means, and When the displacement means is moved by the moving means, the traveling means may be stopped. (Embodiment I Figs. 1 to 5 show one embodiment of the high-speed fluid cutting device according to the present invention. Fig. 1 is a schematic perspective view thereof, and Figs. 2 and 3I21 show a receiver case. A side view and a plan view of the vicinity of the body, Figure 4 is an end view taken along the line ■-■ in Figure 3,
FIG. 5 is a schematic diagram showing a nozzle drive mechanism. In each figure, reference numeral 1 denotes a timing belt having a predetermined width, for example, a width of several cm to several +ell, and several to several dozen timing belts 1 are arranged in parallel. Note that the timing belts 1 are arranged in parallel so that there is a gap of a predetermined width between each timing belt 1. Each of these timing belts 1 is attached to a sprocket 2 fixed at a predetermined position near the four corners of the cutting device, and therefore, the upper part of the timing belt 1, which is configured to form a substantially rectangular loop, is approximately horizontal. A mounting surface 3 is configured. Timing belt 1 in the upper part that holds the mounting surface 3
X in Fig. 1 below and in the longitudinal direction of the in placement surface.
direction), and the first
Two rows of sprockets 4a in the X direction in the figure. 4b, and these two rows of sprockets 4a. Similarly, two rows of sprockets 5a,
5b is provided, and these sprockets 4a, 5a, 5
Each timing belt 1 is attached to sprockets 4m, 5a, 5b, and 4b, and as shown in FIG. A section 6 is configured. Incidentally, since the sprockets 4a, 4b, 5a, and 5b are authorized to be movable in the X direction in synchronization, the concave portion 6 provided on the mounting surface 3 constituted by the timing belt 1 is , sprocket 4a4b, 5a, 5
As b moves in the X direction, it also moves in the X direction. A receiver housing 8 in which an opening 7 is formed in the same direction as the four-striped portion 6 (Y direction) is disposed in a portion of the grooved portion 6 surrounded by the sprockets 4a, 5a, 5b, and 4b. Note 1. This receiver housing S also includes sprockets 4a4b,
It is configured to be movable in synchronization with the movement of 5m and 5b in the X direction. 9 is replaceably arranged f! on the upper surface of the bottom plate of the receiver housing 8. It is a round bar made of 4. 10.11 is provided so as to be movable in contact with the timing belt 1 in the vicinity of both sides of the concave portion 6 (move in synchronization with the sub-blocks 4a, 4b, 5a, 5b), and has a surface with good lubricity. This is an aluminum plate with a predetermined length in the X direction and treated with Teflon so that the position of the timing belt 1 in the Y direction is regulated in accordance with the gap between the parallel timing belts 1. Convex guides 12 and 13 are formed, and the convex guides 5 located between the timing belts 1
A large number of through holes 14.15 are provided in the f-shaped portions 12 and 13, and at the bottom of these through holes 14.15,
A suction box 13.17 is provided which can be moved in the X direction in synchronization with the movement of the aluminum plate 10.11. Note that a predetermined vacuum pump (not shown) is connected to this suction: i16.17. 18 is between the aluminum plates 10 and 11 on the concave portion 6! ! The bridge W has comb-shaped convex portions 19 and 20 corresponding to the convex guide portions and has an opening groove 21 at the center position along the Y direction, and the bridge plate 18 is The upper surface is set to be approximately at the same height as the upper surface of the timing belt 1. Incidentally, since this bridging plate 18 is suspended and fixed between the aluminum plates 10 and 11, the aluminum plates io, t
Move in the X direction in synchronization with the movement of i. 22 is a stainless steel belt that ties a rectangular loop provided corresponding to the opening groove 21, and the belt at the lower stage of the belt 22 runs between the rack 18 and the receiver housing 8. The opening 7 of the receiver housing 8 is closed by the surface of the belt 22 in the lower position. Therefore, it is as if a closed room is formed in the receiver housing 8 by the wall surface of the receiver housing 8 and the belt 22. 23 is a through hole of a predetermined diameter provided at one location of the belt 22, and a spacer 25 having a through hole 24 similar to the through hole 23 is provided on the surface of the belt I/22 around this through hole 23.
is provided, and in the portion where the spacer 25 is provided, the bridging plate 1, the spacer 25, the belt 22, and the upper part of the receiver housing 8 are configured to be in contact with each other. Reference numeral 26 denotes a nozzle for discharging high-pressure water of, for example, about 0.3 atmospheres or higher, which is provided opposite the through-holes 23 and 24. It is discharged into the receiver housing 8 through the through hole 24 of the spacer 25, the through hole 23 of the belt 22, and the opening 7 of the receiver housing 8, hits the round rod 9 inside the receiver housing 8, and is dispersed. The water is drained to the outside by a water guide am connected inside s. 27 is a motor for driving the holding member 28 of the nozzle 26 in the Y direction; one end of a belt 29 attached to the output shaft of this drive motor 27 is connected to one end of the holding member 28, and the other end of the belt 29 is connected to one end of the holding member 28; is attached to the other end of the holding member 28, and the holding member 28 (therefore, the nozzle 26) is movable in the Y direction by driving the motor 27. A synchronizing mechanism is attached between the nozzle 26 (therefore, the holding member 28) and the belt 22, and the belt 22 runs in response to the movement of the nozzle 26 in the Y direction. The tip end always faces the through hole 23 provided in the belt 22. 31 is a cloth-like material placed on the timing belt 1; 32
is a transparent film with low air permeability placed on this cloth-like material 31. 33 is a brake mechanism provided for the timing belt 1, and 34 is a brake mechanism for the housing housing the sprockets 4a, 4b, 5a, 5b, suction 916.17, nozzle 26, etc., and the brake mechanism 33 acts. death,
With the brake mechanism 34 released, if the housing containing the nozzle 26 and the like is moved in the X direction while being held and guided by the guide member using a predetermined drive mechanism, the concave portion 6 will move in the X direction accordingly. Then, when the brake mechanism 34 is applied and the sprocket 4a is driven with the brake mechanism 33 released, the timing belt l moves in the X direction from the spreading area to the take-out area, causing a cut on the timing belt 1. The finished cloth-like material 31 is then delivered to the take-out area. When the cutting device is configured 411 as described above, when the cloth-like material 31 with the film 32 placed on the surface is supplied from the Ima-nobu area onto the timing belt 1 in the cutting area, the timing belt 1 stops running. Then, a predetermined $ control mechanism is activated, that is, the operation of the motor 27 etc. is controlled, and the nozzle 26 is moved so that the position of the nozzle 26 in the X direction and the position in the Y direction in the X-Y plane correspond to a predetermined cutting pattern. The running of the vehicle is controlled. High-pressure water is discharged from the nozzle 26 as the nozzle 26 runs, and the film 32 and cloth-like material 31 placed on the timing belt 1 are cut by this force. When cutting with this high-pressure water, the cloth-like material 31 and film 32 are sucked from both sides in the X direction of the position where the high-pressure water is ejected, that is, at the suction 'WU16°17 position, through the through holes 14.15. Opposite forces act on the cloth-like material 31 and film 32 near where the high-pressure water is ejected, and a large tension acts on the cloth-like material 31, increasing its rigidity, making it smooth with high-pressure water. This allows cutting to be done quickly, and there are no defects such as uncut parts. Incidentally, even though only the warp of the fabric 31 is pulled by the suction boxes 16 and 17 and the weft is not directly pulled by the suction [16 and 17], since these warp and weft are closely intertwined, the weft When high-pressure water hits the weft, the weft threads will not be stretched and uncut. In addition, the discharged high-pressure water spreads like a trumpet, and as it spreads, an abnormal amount of noise, for example, 100 clB, was generated due to the energy released. If so, the discharged high-pressure water is transmitted to the receiver housing 8 and the belt 22.
Since the energy is discharged into a closed space constituted by and spreads within this closed space, the noise leaks to the outside. It has been reduced to about 80dB, and the work T
The M boundary has been improved. Further, in the above embodiment, since the nozzle 26 is configured to be movable in the X direction and the Y direction, less space is required for the placing means for placing the cloth-like object. In addition, the nozzle can be moved in the X direction and the Y direction by tl.
Although it does not require much ingenuity to do so, it is necessary to arrange a receiver means for receiving the high-pressure water discharged from the nozzle corresponding to the nozzle that discharges high-pressure water. For example, during the period,
If a wire mesh or the like is used as a holding means for a cloth-like object as described in Publication No. 4566, high-pressure water will hit this wire mesh and not only damage the wire mesh, but also cause abnormalities when crossing the thin wires of the wire mesh. These X
It is important to ensure that there is nothing between the nozzle moving in the direction and the Y direction and the receiver means, other than a cloth-like object, that is hit by the high-pressure water, and in the above embodiment,
Sprockets 4a, 5a, 4b, 5 movable in the X direction
b, and the timing belt 1 is attached to this to form the concave portion 6 on the mounting surface 3, and the receiver means for receiving high-pressure water is disposed in this concave portion. The demand has now been fulfilled. [Effect] The high-speed fluid cutting device according to the present invention is composed of fa mounting means, displacement means for displacing a part of this mounting means to a downward position, and partial displacement of the mounting means by this displacement means. receiver means disposed in the space for receiving fluid; high-speed fluid ejection means disposed above the mounting means opposite to the receiver means; and the displacement means, the receiver means and the high-speed fluid ejection means. The first moving means for moving the high-speed flow 14' in the left-right direction and the second moving means for moving the high-speed flow 14' emitting means along a space formed by partially displacing the mounting means are provided. Although the high-speed fluid ejected from the fluid ejecting means hits, for example, a cloth-like object on the mounting means and cuts it, it enters the receiver means without hitting the mounting means. Since the high-speed fluid does not come into contact with the u-placement means, the noise does not increase accordingly, improving work efficiency. Since it can be moved dimensionally, it has the advantage that it is easier to control than when cutting by moving a heavy mounting means.

[Brief explanation of drawings]

1 to 5 show one embodiment of the high-speed fluid cutting device according to the present invention, FIG. 1 is a perspective view showing the outline thereof, and FIGS. 2 and 3 show a portion near the receiver housing. 4 is an end view taken along line 11V-■ in FIG. 3,
FIG. 5 is a schematic diagram showing a nozzle drive mechanism. 1...Timing belt, 2...Sprocket, 3
・u Mask, 4a, 4b, 5a, 5b-Sprocket, 6... Concave portion, 7... Opening, 8... Receiver housing, 9... Round bar, 10.11... Aluminum plate, 12.13... Convex guide, 14.15... Through hole, 16.17... Suction box, 18... Bridge plate, 22
...Belt, 23.24...Through hole, 25...Spacer, 26...Nozzle, 27...Motor, 28...
...Holding member, 29...Belt, 30...Synchronization mechanism, 31...Cloth-like material, 32...Film, 33.34
...Brake mechanism.

Claims (6)

[Claims] (1) Receiving fluid arranged in a space formed by a mounting means, a displacement means for displacing a part of this mounting means to a downward position, and a part of the mounting means being displaced by this displacement means a receiver means, a high-speed fluid ejecting means disposed above the mounting means to face the receiver means, and a first moving means for moving the displacement means, the receiver means, and the high-speed fluid ejecting means in the left-right direction. and a second moving means for moving the high-speed fluid ejecting means along a space formed by partially displacing the positioning means. (2) The high-speed fluid cutting device according to claim 1, further comprising fixing means for fixing the object placed on the mounting means in a position corresponding to the side of the displacement means. (3) In the high-speed fluid cutting device according to claim 1, the receiver means is provided with a lid provided with an opening that moves in accordance with the movement of the high-pressure fluid ejection means by the second moving means. what was done. (4) The high-speed fluid cutting device according to claim 1, wherein the mounting means is an endless belt. (5) The high-speed fluid cutting device according to claim 4, wherein a plurality of guide rollers are attached to an endless type belt to displace a portion of the belt to a lower position. (6) In the high-speed fluid cutting device according to claim 4 or 5, a running/stopping means for stopping the belt from running is provided, and the running/stopping means moves the displacement means by the first moving means. Performs traveling operation when movement is stopped,
When the displacement means is moved by the first moving means, traveling is stopped.