JPS646295B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a braiding device for a cylindrical mesh that continuously forms and processes the cylindrical mesh without cutting the cylindrical mesh in the middle.

[Conventional technology]

For example, for the exterior of a cylindrical body such as a flexible tube for an exhaust system, a cylindrical body made by weaving thin wires etc. is used to protect the main body, as shown in Japanese Patent Application Laid-open No. 101019/1983. Are known.

To form such a cylindrical net, as shown in FIG. 13, a plurality of linear materials 101 are wound around a bobbin, the bobbin is set in a braiding machine 102 equipped with a revolution-revolution roller mechanism, and the braiding machine Core 10 by 102
This is done by knitting on top of 5. and,
Since the braiding machine itself is only equipped with a rotation mechanism, a certain tension must be applied to the formed cylindrical mesh 103, and for this purpose, a pulling machine 104 consisting of an endless belt mechanism is used. Collection machine 10
4 presses and clamps the cylindrical mesh 103 from above and below, and applies tension to the core 1 by the rotational driving force of the belt.
The position network 103 that moves together with 05 is pulled out.
The diameter of the thus obtained cylindrical mesh 103 is determined by the core 105.

However, in this structure, since the core is recycled, the cylindrical mesh must be cut to the length of the core, which reduces yield.
In addition, core recycling work is required.

Therefore, a braiding device has been devised and known as shown in FIG. 14, which improves this conventional structure and can continuously form a cylindrical mesh without cutting it midway.

In the figure, 106 is a fixed core, and the braiding device 1
It is fixed at 02. 107 is fixed core 10
The projecting head device is mounted on the outside of the device 6 and is configured to perform reciprocating motion by a crank mechanism 108 and push out the cylindrical mesh 109 through its head portion 107A.

[Problem that the invention seeks to solve]

However, in such a conventional structure,
Unlike the conventional example before the improvement, the fixed core is fixed, so when the cylindrical net is pulled by the pulling machine, unreasonable force is applied, and moreover, the cylindrical net is pushed by the head part. Therefore, the force acts unevenly. For this reason, the quality that was satisfied in the conventional example before the improvement could not be ensured, and a new quality problem occurred in that the stitches of the cylindrical mesh were disordered.

[Object of the Invention] The present invention was made to solve the above-mentioned problems, and its purpose is to ensure the quality of the stitches of the tubular mesh and to avoid cutting the knitted tubular mesh midway. An object of the present invention is to provide a cylindrical mesh braiding device that can be continuously formed.

[Means for solving problems]

In order to achieve the above object, the present invention provides a braiding machine that supplies a plurality of linear materials to braid a cylindrical shape;
In a braiding device for a tubular mesh, which is provided with a pulling machine disposed at the output side of the braiding machine to press and pull out the tubular mesh, and a core inserted into the tubular mesh, a wire A stopper is provided that comes into contact with the inner part of the approximately conical knitting opening forming part of the material, and the core is configured to perform reciprocating motion together with the cylindrical net after being pulled out a certain distance and then pulled back. It is located inside the opening forming part of the linear material.

[Action of the invention]

According to the present invention having the above configuration, when the cylindrical net is pulled out while being pulled by the pulling machine, the core is shaped into the cylindrical shape without any unreasonable force being applied between it and the cylindrical net. It is pulled out along with the net. When the moved core returns, the inner side of the knitting opening forming portion of the linear material comes into contact with the stopper, so that the cylindrical mesh is pushed from the take-up machine toward the braiding machine and expands in diameter. Therefore, the core is freely pulled back without being caught by the cylindrical mesh.

[Embodiments of the invention]

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

A first embodiment of the tubular mesh braiding device according to the embodiment of the present invention
This will be explained with reference to FIGS.

In the figure, a large number of linear materials 2 are pulled out from a braiding machine 1, and a cylindrical mesh 4 is formed around the outer periphery of a movable core 3. A pulling machine 5 presses and clamps the wire materials 2, and the wire materials 2 are pulled out by rotation of rollers 9B. It's pulled out to the side.

A guide section 6 for sliding the movable core 3 is provided inside the braiding machine 1, and a stopper 7 is provided at the tip of the guide section 6, which comes into contact with the approximately conical opening forming section 2A of the linear material 2.
is formed. The movable core 3 is connected to a first cylinder 8 via a rod 3A and a bracket 3B, and is reciprocated by the first cylinder 8.

The take-up machine 5 is composed of a pair of upper and lower endless belt mechanisms 9 consisting of a belt 9A and a roller 9B that wraps around the belt, and a second cylinder 10 that separates and presses the endless belt mechanism 9 onto the cylindrical net 4. There is.

Next, to explain the operation of this embodiment, the cylindrical mesh 4 is continuously braided on the outer peripheral surface of the movable core 3.
is crimped and held on the outer peripheral surface of the movable core 3 by the take-up machine 5, and is transferred to the exit side by rotation of the belt 9A. At this time, since the movable core 3 is also moved together by the clamping force of the take-up machine 5, the cylindrical net 4 is transferred a predetermined length while maintaining its shape. FIG. 1 shows a state in which the movable core 3 has moved to the maximum extent in the direction from the braiding machine 1 to the take-off machine 5.

Next, as shown in FIG. 2, the endless belt mechanism 9 is separated from the outer peripheral surface of the cylindrical mesh 4 by the second cylinder 10. When the movable core 3 is pulled by the first cylinder 8 from this state, the inner side of the opening forming part 2A of the linear material 2 that continues to the cylindrical mesh 4 is pressed against the stopper 7, and the cylindrical mesh 4 The diameter of is expanded. Therefore, the movable core 3 is separated from the inner circumferential surface of the cylindrical net 4, so that the movable core 3 can be pulled back toward the braiding machine 1, and the movable core 3 is removed from the pulling machine 5. The state of maximum movement in the direction of aircraft 1 is shown in FIG.

In addition, when expanding the cylindrical net 4 with the movable core 3, if the rearmost end 3C of the movable core 3 is located closer to the take-up machine 5 with respect to the boundary 2B between the knitting opening forming part 2A and the cylindrical net 4. , although there is a high possibility that the diameter of the cylindrical mesh 4 will shrink,
Since the rearmost end 3C of the movable core 3 is located closer to the braiding machine 1 with respect to the boundary portion 2B, the diameter of the cylindrical mesh 4 does not shrink.

From the state shown in FIG. 3, the endless belt mechanism 9 is moved to the outer peripheral surface of the cylindrical mesh 4 by the second cylinder 10, and the belt 9A of the endless belt mechanism 9 is pressed against the outer peripheral surface of the cylindrical mesh 4. This state is shown in FIG. When the movable core 3 is pulled out from this state by the first cylinder 8, it returns to the state shown in FIG.
The cycle ends.

By repeating the reciprocating motion of the movable core 3 as described above, the cylindrical mesh 4 is continuously pulled out in the exit direction without being cut midway, and is appropriately cut into various sizes in the subsequent process to form the final product. used as.

According to this embodiment having the above configuration, when the cylindrical net 4 is transferred by the endless belt mechanism 9, the movable core 3 is pulled out together with the cylindrical net 4. No force is applied and the cylindrical mesh 4
The stitches will not be disturbed.

Furthermore, when the movable core 3 returns, the inner side of the knitting opening forming portion 2A of the linear material 2 comes into contact with the stopper 7.
The cylindrical mesh 4 is pushed in the direction of the braiding machine 1 from the take-up machine 5 and expands in diameter, and the movable core 3 is freely pulled back without being caught on the inner peripheral surface of the cylindrical mesh 4.

As described above, while reciprocating the movable core 6, the cylindrical mesh 4 can be continuously formed without applying excessive force or cutting, and the quality of the stitches of the cylindrical mesh 4 can be improved. can be ensured.

Further, since the movable core 3 is movable, by exchanging movable cores 3 with different diameters, it is possible to continuously mold cylindrical meshes 4 with different diameters.

In this embodiment, the stopper 7 is fixed, but the stopper 7 is configured to be moved slightly in the direction of the take-up machine 5, and the cylindrical net 4 is expanded by moving the stopper 7. After that, the movable core 3 can be pulled back.

Further, in this embodiment, the cylindrical mesh 4 is connected to the movable core 3.
By pulling back the movable core 3, the diameter of the movable core 3 is expanded by driving the take-off machine 5 in the opposite direction (in the direction opposite to the arrow in FIG. After pressing and expanding the cylindrical mesh 4, it can be pulled back.

Furthermore, in this embodiment, the cylindrical net 4 is pulled out by the rotational driving force of the pulling machine 5, but the cylindrical net 4
The cylindrical net 4 can be pulled out by the linear driving force of the movable core 3, and the pulling device 5 is movably crimped onto the cylindrical net 4.

Next, modifications of the reciprocating means for the movable core 3 and the take-up machine 5 will be described.

FIG. 5 shows means for reciprocating the movable core. In the figure, 3A' is a rack and 3C is a pinion.
One end of the rack 3A' is connected to the movable core 3.
The movable core reciprocates by rotating the pinion 3C via a motor (not shown). With such a structure, the movable core can be mechanically reciprocated, so the means for reciprocating the movable core 3 can be simplified.

FIG. 6 shows means for reciprocating the movable core 3. In the figure, reference numeral 11 indicates a tension spring, which is installed between one end of the movable core 3 and the inside of the braiding machine 1. The tension spring 11 is stretched when the movable core 3 is transferred together with the cylindrical net 4, and when the take-up machine 5 separates from the cylindrical net 4, the movable core 3 is pulled back by the restoring force of the tension spring 11. . With such a structure, the means for reciprocating the movable core 3 can be simplified.

FIG. 7 shows means for pulling back the movable core 3. In the figure, 12 is a hook attached to one end of the movable core 3, and is pulled back by the tip 12B of the rod of the third cylinder 12A. With this structure, when the movable core 3 moves together with the cylindrical mesh 4, there is no resistance and the movable core 3 is in a free state, so that the movement can be easily followed.

FIG. 8 shows means for pulling back the movable core 3. In the figure, 13 is a pulley 13A from one end of the movable core 3.
with a balance weight attached via the fourth
It is balanced with cylinder 13B. The movable core 3 is pulled back by rapidly moving the rod 13C of the fourth cylinder 13B. With this structure, when the movable core moves together with the cylindrical mesh 4, it is in a free state with no resistance, so that the movement can be easily followed.

FIG. 9 shows an example in which the position and reciprocating stroke of the movable core 3 with respect to the take-off machine 5 are regulated so that the cylindrical net 4 is crimped and held by the full length of the take-off machine 5 and pulled. . That is, when the movable core 3 is pulled back, its tip 3D is positioned on the exit side of the endless belt mechanism 9. With such a structure, the pressure force of the belt 9A can be reduced, so that the quality of the mesh of the cylindrical mesh 4 can be further improved.

FIG. 10 shows a modification of the take-up machine 5 in which a cylindrical roller 14 is used. With such a structure, the space can be made compact.

FIG. 11 and FIG. 12 show other modifications of the take-up machine 5. The take-up machine 5X is composed of a short cylindrical cylindrical net holding part 5Y that is divided in half, and a fifth cylinder 5Z that reciprocates the cylindrical net holding part 5Y along the cylindrical net 4. According to such a structure, the structure of the take-up machine can be simplified.

〔Effect of the invention〕

As described above, according to the present invention, in the braiding device for a tubular mesh, the knitted tubular mesh is continuously formed without cutting it midway while ensuring the quality of the stitches of the tubular mesh. It has the effect of being able to be processed.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a cylindrical mesh braiding device according to an embodiment of the present invention, and Fig. 2 is a block diagram of the cylindrical mesh braiding device according to an embodiment of the present invention. Figure 3 is a diagram of the braiding device for the same cylindrical net when the movable core is pulled back to the maximum extent and the pulling machine is separated from the cylindrical net, and Figure 4 is a diagram of the braiding device for the same cylindrical net In the braiding device, the movable core is pulled back to the maximum extent and the take-up machine is pressed against the cylindrical mesh. Figure 5 is an explanatory diagram showing another example of the reciprocating means for the movable core. Figure 6 is the movable core. An explanatory diagram showing still another example of a reciprocating means for the core,
FIG. 7 is an explanatory diagram showing another example of the movable core pulling back means, FIG. 8 is an explanatory diagram showing still another example of the movable core pulling back means, and FIG. 9 is an explanatory diagram showing another example of the movable core pulling back means. Explanatory diagram showing one state of positional relationship, No. 10
The figure is an explanatory view showing another example of the take-up machine, Fig. 11 is an explanatory view showing still another example of the take-up machine, Fig. 12 is a sectional view taken along line A-A in Fig. 11, and Fig. 13 is a conventional medium FIG. 14 is a block diagram of a conventional continuous type cylindrical mesh braiding device. DESCRIPTION OF SYMBOLS 1... Braiding machine, 2... Linear material, 3... Movable core, 4... Cylindrical net, 5... Taking machine, 6... Guide part, 7... Stopper, 8... First cylinder ,9...
...Endless belt mechanism.

Claims (1)

[Scope of Claims] 1. A braiding machine that supplies a plurality of linear materials and braids them into a cylindrical shape; a take-up machine that is disposed at an exit position of the braiding machine and presses and pulls out a cylindrical mesh; In a braiding device for a cylindrical net comprising a core inserted into the inside of the net, a stopper is provided that comes into contact with the inner part of the approximately conical opening forming part of the linear material, and the core is inserted into the braiding device. A cylindrical net, which is configured to perform a reciprocating motion together with the cylindrical net after being pulled out a certain distance and then pulled back, and wherein at least a part of the core is located inside a knitting opening forming part of a linear material. Braiding device. 2. The tubular mesh braiding device according to claim 1, wherein the core is configured to perform reciprocating motion by a cylinder. 3. The cylindrical mesh braiding device according to claim 1, wherein the core is configured to perform reciprocating motion by a rack-and-pinion mechanism. 4. The cylindrical core according to claim 1, wherein a tension spring is attached to one end of the core, and the core is pulled back by the tension spring after the pulling machine is separated from the cylindrical net. Mesh braiding device. 5. The cylindrical mesh braiding device according to claim 1, wherein the core is configured to be pulled back by a cylinder. 6 Claim 1, characterized in that the core is configured to be pulled back by a pulley.
The tubular mesh braiding device described in Section 1. 7. Claim 1, characterized in that the position and reciprocating stroke of the core with respect to the take-up machine are regulated so that the cylindrical mesh is crimped and held by the full length of the take-off machine and pulled. The tubular mesh braiding device described in Section 1. 8. The cylindrical mesh braiding device according to claim 1, wherein the pulling machine is constituted by a cylindrical roller. 9. Claim 1, characterized in that the take-up machine is comprised of a short cylindrical cylindrical net holding part formed in half, and a cylinder that reciprocates the cylindrical net holding part along the cylindrical net. The tubular mesh braiding device described in Section 1. 10. The apparatus for braiding a tubular mesh according to claim 1, wherein the core is pulled back after the stopper is moved a certain amount from the braiding machine to the take-off machine to spread the tubular mesh. . 11. The cylindrical net according to claim 1, wherein the core is pulled back after pressing the cylindrical net against a stopper and expanding the cylindrical net by driving in reverse with the take-up machine. Braiding device. 12. The braiding device for a tubular mesh according to claim 1, wherein the tubular mesh is driven by a core, and a take-up machine is movably crimped onto the tubular mesh.