JPH04100969A - Cutting apparatus - Google Patents

Abstract

PURPOSE:To cut a number of cloth sheets in accurately same shape over the whole layers of the sheets by stacking cloth sheets or a cloth-spreading table made of a deformable supporting layer, and moving a cutting machine in a state to position the upper face of a base plate on a level same as or lower than that of the upper surface of the above supporting layer. CONSTITUTION:Cloth sheets 5 are stacked on the surface of a cloth-spreading table 9 composed of a deformable supporting layer 10 made of a gelatinous substance, erected bristles or soft elastomer and independently denting exclusively at a pressed part. A cutting machine 12 is moved on the stacked cloth sheets along a prescribed dress pattern while positioning the upper face of the base plate 14 of the cutting machine to a level same as or lower than that of the deformable supporting layer 10. The cloth sheets are maintained in horizontal state throughout the whole layers from the top to the bottom. Furthermore, the tip end of the cutting blade 7 is passed through the lowermost cloth sheet 5, intruded into the base plate 14 and maintained in the base plate 14 even at the lowest point. Accordingly, the stacked cloth sheets 5 are accurately cut to the same shape from the top to the bottom layers.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is a cutting machine that has a cutting blade and a base plate integrated into the support of the cutting blade, and cuts the material stacked on a spreading table at one time. Regarding equipment.

[Prior Art] In general, cutting devices include those that manually guide the cutting machine on a spreading table to cut the stacked material, and those that cut the stacked material by manually guiding the cutting machine on a spreading table, and the cutting device that is attached to the tip of an arm that moves along the side of the spreading table. There is a machine that suspends the arm and uses the hanging action of the arm to cut the material stacked on the spreading table.

In the former type of cutting machine, as shown in FIG. fabric 5
It has a large area so that it can be easily cut along the pattern.

As shown in FIG. 6, the latter cutting machine has an arm 6.
The base plate 2 has a smaller area than the former because it is relatively stable because it is suspended from the former.

The function of the base plate 2 is to maintain stability of movement during cutting on the spreading table 3, and to cut the fabric 5 stacked on the spreading table 3 to the bottom layer. It is necessary for the tip of the cutting blade 7 that reciprocates to pass through below the bottom layer of fabric, so that the cutting blade 7
If the cutting blade 7 had collided with the spreader table 3, the cutting blade 7 would be damaged and the spreader table 3 would be covered with scratches.To prevent this, the technique disclosed in Japanese Patent Publication No. 19193/1983 was developed. As shown in FIGS. 7 and 8, this technique involves making the head plate 2 have a certain degree of thickness, and forming a relief part 8 at the tip of the cutting blade 7.
is formed to prevent damage to the cutting blade 7 and the spreading table 3.

[Problem to be solved by the invention]

However, according to the above-mentioned conventional technology, there is a limit to how thin and small it can be made, and the base plate needs to be thick enough to allow the tip of the cutting blade to escape.
As shown in Figures 7 and 8, the technique of No. 1-19193 inserts a base plate between the spreading table and the lowest layer of laminated fabric during cutting, but as shown in the figure, the laminated fabric bulges according to the base plate. The amount of swelling is different between the lower and upper fabric layers, so when cutting with a cutting blade, the size of the cut pieces will be different between the lower and upper layers, and this effect is particularly large for small pieces of fabric. There is a problem.

Furthermore, in the technique disclosed in Japanese Patent Publication No. 51-19193, the cutting blade and the base plate are separate bodies, and as shown in Figure 7, the base plate extends in the width direction of the table. A guide member with a receiving hole is movably fitted and synchronized with the cutting direction of the cutting blade, which requires a very complicated tuning structure, making it difficult to use a small cutting machine with a cutting blade and base plate integrated. The problem is that it cannot be applied to the structure of

Moreover, the cutting ring generated during cutting gets stuck in the groove of the base plate, making it difficult for the guide member to move within the groove.
The problem is that if it gets worse, it won't work at all.

(Means for Solving the Problems) Therefore, the present invention provides a cutting device that cuts fabrics stacked on a spreading table at one time using a cutting machine in which a cutting blade and a base plate are integrated into the support of the cutting blade. The surface of the table is made of a variable support layer that can be independently dented at that point when a load is applied, and the base plate of the cutting machine sinks into the variable support layer so that the top surface of the base plate is the same as the top surface of the variable support layer. Alternatively, the cutting blade can be moved in a position lower than that, and the depth of the base plate is set to such a depth that the tip of the cutting blade passes through the bottom layer of fabric, fits within the base plate, and does not come out from the base plate.

[For production]

According to the above configuration, when cutting, the base plate of the cutting machine can enter the variable support layer and move in a state where the top surface of the base plate is located at the same level as or lower than the top surface of the variable support layer. Since the other parts of the variable support layer do not swell, the base plate inserted between the laminated fabric and the spreading table does not swell and deform the laminated fabric, and the fabric layered on the variable support layer This means that it will maintain a horizontal state even when cutting, and when it is cut with a cutting machine, it will be possible to accurately cut into the same shape from the top layer to the bottom layer.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view, and FIG. 2 is an enlarged perspective view of the main part. In the figures, 9 is a spreading table, on which a variable support layer 1o of a predetermined thickness is formed at least on the surface. This variable support layer 1o may be made of, for example, a colloid material such as gelatin, a material made of independent supports such as bristles, or a material such as a sponge as shown in the figure. Any other structure may be used, such as one in which protrusions 11 made of soft elastic material are formed on one surface at predetermined intervals. The concept includes the surrounding contour of

) should be independently recessed.

When a fabric is laminated on such a variable support layer 10, the variable support layer 10 horizontally supports the laminated fabric without being slightly or almost indented within a range that is not a problem.

Note that techniques for making individual bristles stand upright on one side are shown in Japanese Patent Publication No. 50-32357, etc., but these are techniques for keeping the bristles in an upright state, and are not partially independent like the present invention. It is not a technology that can be used to make a dent. Since these technologies are cutting devices without a base plate, there is no need for the technical idea of making a dent. Furthermore, since there is no base plate, the tip of the cutting blade is unstable, making it difficult to accurately cut from the upper layer to the lower layer.

Reference numeral 12 denotes a cutting machine, which may be a conventional base plate for manually guiding a cutting machine or a base plate suspended from an arm, but in this embodiment, it is suspended from an arm and supported by a support 13. By making the lower surface shape of the lower surface shape (including polygonal shape) such as a cubic curve like the bottom of a ship, it is easy to move on the variable support layer 10,
A base plate 14 of a cutting machine 12 whose arm is suspended by a spring or a cylinder pressurized with fluid.
The push-down blade can be adjusted.

Further, the base plate 14 is arranged such that its upper surface is located on the same level as the upper surface of the variable support layer 10 or slightly lower than the upper surface of the variable support layer 10, so that it can easily fit into the variable support layer 10 and can move in any direction of movement. It has a bottom shape that allows for good movement so that it can move without resistance, and has a depth that allows the tip of the cutting blade 7 to pass through below the bottom layer of fabric and fit within this base plate 14, so that it does not come out from the base plate 14 even at the lowest point. - For boat fishing, a depth of about 5 mm is sufficient, but it may be shallower or deeper than that depending on necessity, and the value is determined by the design. Also,
The shape may be, for example, as described above (a three-dimensional curved shape as shown in Fig. 2, a hemispherical shape as shown in Fig. 4, or a curved bottom of a flat body by extending the support 13 of the cutting blade 7). A possible shape is one in which a horizontal stabilizing plate is attached to the lower part of the plate, and various other shapes are also possible, although not shown as examples.

According to the above configuration, when the cutting machine 12 suspended from the arm runs on the variable support layer 10 of the spreader table 9 while the base plate 14 is supported by the set pressing blade,
It is possible to travel with the base plate 14 sunk in the variable support layer 10 by recessing only the traveling parts one by one and independently.

Therefore, when the fabric 5 laminated on the variable support layer 10 is cut along the pattern, the base plate 14 is cut as shown in FIG.
Since the upper surface is positioned on the same level as the variable support layer 10 or moves below it, the laminated fabric 5 does not bulge and deform due to the base plate 14.
The fabric 5 can be cut in a horizontal state at all times down to the lower layer, and the upper and lower layers can be cut accurately to the same size.

Although the above-mentioned embodiment has been described with respect to a cutting machine suspended from an arm, in a cutting machine that is manually guided on the spreader table 9, the base plate 14 sinks as if crushing the variable support layer 10, and the base plate 14 The bottom of the variable support layer 10 indirectly contacts the upper surface of the hard part 9a of the spreading table 9, and in this state, the upper surface of the base plate 14 moves to be located on the same level as the variable support layer 10 or below it. In addition, the bottom of the base plate 14 is formed with a flat part (not shown) so that it can move in a stable state without wobbling on the hard part 9a of the spreading table 9, and a plurality of protrusions are formed on the bottom of the base plate 14 to provide legs. It is preferable to form a section, and furthermore, the leg section may be formed as a roller.

Although each of the above explanations has been made using a cutting device that cuts along a pattern placed on laminated fabric, the same applies to a cutting device that automatically cuts the fabric using a computer.

[Effects of the Invention] According to the present invention described in detail above, in a cutting device that cuts fabrics stacked on a spreading table at one time using a cutting machine in which a cutting blade and a base plate are integrated with the support of the cutting blade, The surface of the stand is made into a variable support layer that can be independently dented at that point when a load is applied, and the base plate of the cutting machine sinks into the variable support layer so that the top surface of the base plate is the same as the top surface of the variable support layer. The depth of the base plate is set to such a depth that the tip of the cutting blade passes through the bottom layer of fabric, fits within this base plate, and does not come out from the base plate. Because the base plate sinks into the variable support layer during cutting, the fabric laminated on the variable support layer can be kept in a horizontal state during cutting, and the fabric can be cut accurately into the same shape from the top layer to the bottom layer. It has the effect of

Furthermore, the base plate has a bottom shape that allows it to easily enter the variable support layer and has good mobility so that it can move with little resistance in any direction of movement, making it easy for the base plate to move on the variable support layer. This has the effect of making it possible to perform various operations.

In addition, in a structure in which the cutting machine is suspended from an arm, the upper surface of the base plate is adjusted so that the push-down blade is located at the same level as or lower than the upper surface of the variable support layer, thereby creating a smooth and stable cutting machine. This has the effect of enabling operation.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 is an enlarged perspective view of the base plate, Fig. 3 is an enlarged side view of main parts showing the cutting state, and Fig. 4 is a perspective view showing an example of the shape of the base plate. , FIG. 5 is a side view of the conventional example, FIG. 6 is a side view of another conventional example, FIG. 7 is a perspective view showing the state of the conventional base plate, and FIG. 8 is a sectional view showing the state of the conventional base plate. . 9... Spreading table 10 ・ ・ 12 ・ ・ I 4 ・ ・

Claims (1)

[Scope of Claims] 1. In a cutting device that cuts fabric laminated on a spreading table at once using a cutting machine that has a cutting blade and a base plate integrated with the support of the cutting blade, the surface of the spreading table is The variable support layer is such that only that part can be independently recessed when it is applied, and the base plate of the cutting machine sinks into the variable support layer so that the top surface of the base plate is at the same level as or lower than the top surface of the variable support layer. The cutting device is capable of moving in a state where the cutting blade is moved in a state where the cutting blade is moved, and the depth of the base plate is set to such a depth that the tip of the cutting blade passes through the bottom layer of fabric, fits within the base plate, and does not come out from the base plate. 2. In claim 1, the bottom shape of the base plate is:
A cutting device characterized by having a bottom shape that allows it to easily penetrate into a variable support layer and has good maneuverability so that it can move with little resistance in any direction of movement. 3. In the cutting device according to claim 1, which has a structure in which the cutting machine is suspended from an arm, the cutting machine is suspended so that the upper surface of the base plate serves as a pressing blade located at the same level as or lower than the upper surface of the variable support layer. A cutting device characterized by: