JPH0613188B2 - Reinforcement hose manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an inner tube head arranged at the tip of an inner tube extruder, and a tip of an inner tube die arranged concentrically with the inner tube head. The torpedo is formed by protruding from the part, and the outer pipe extruder makes the axial direction substantially orthogonal to the inner pipe extruder,
In addition, a material outlet formed by an intermediate die and an outer pipe die, each of which is supported by an outer pipe head arranged at the tip of the outer pipe extruder, is formed near the inner pipe die and outside the outer periphery of the torpedo. As described above, the reinforcing layer forming device which is further arranged so that the reinforcing yarn can be drawn out from the gap between the intermediate die and the inner pipe die and wound around the outer periphery of the inner pipe immediately after extrusion is a cylinder of the inner pipe extruder. The present invention relates to an improvement in a fixing mode of inner and outer pipe extruders in a manufacturing device of a reinforcing hose arranged concentrically with (hereinafter, simply referred to as a “manufacturing device of a reinforcing hose”).

<Prior Art> A device for manufacturing a reinforcing hose of the type described above has been filed and publicly known by the applicant of the present application (Japanese Patent Publication No. 59-3930).
0, Japanese Patent Publication No. 60-50132).

FIG. 3 shows a cross section of the head portion of the apparatus 1 for manufacturing the reinforcing hose.

On the inner pipe head 6 arranged at the tip of the inner pipe extruder 3, a torpedo 7 is formed so as to protrude from the tip portion of the inner pipe die 5 arranged concentrically with the inner pipe head 6. The outer pipe extruder 11 includes an intermediate die 13 and an outer pipe die 1 each supported by an outer pipe head 16 arranged at the tip of the outer pipe extruder 11.
The material outlet 17 formed by 5 and 5 is arranged so as to be formed near the inner pipe die 5 and outside the outer periphery of the torpedo 7. Further, the reinforcing layer forming device 21 is configured to use the reinforcing yarns F1,
The F2 is arranged so as to be drawn out from the gap between the intermediate die 13 and the inner pipe die 5 onto the inner pipe immediately after extrusion and can be wound.

Here, in the inner pipe extruder 3, the torpedo 7 is attached to the inner pipe head 6 attached to the tip of the cylinder 4, and the inner pipe die 5 is also attached to the inner pipe head 6. In the outer pipe extruder 11, the intermediate die 13 and the outer pipe die 15 are attached to the outer pipe head 16 attached to the cylinder 14 by using die retainers 18 and 19, respectively.

The inner and outer pipe extruders 3 and 11 and the reinforcing layer forming device 21 were arranged for the head portion as shown in FIGS. FIG. 4 shows a front view of the reinforcing hose manufacturing apparatus 1,
The inner pipe extruder 3 includes a cylinder support 23 and a base support 25.
And are supported and fixed to the base 27. Specifically, the upper end flange 23a of the cylinder support base 23 and the flange 29 of the support leg 29 projecting downward from the base of the cylinder 4.
a is bolted, and the lower end flange 23b of the cylinder support 23 and the base 27 are bolted. Similarly, the upper and lower flanges 25a and 25b of the base support 25 are
The flange 3 of the support leg 31 of the gear box 24, respectively
It is bolted to the base 1a and the base 27. The cylinder 4 is in a loosely inserted state with respect to the reinforcing layer forming device 21,
The inner tube head 6 is not supported by any supporting member.

In the figure, reference numeral 32 is a drive motor, reference numeral 36 is a belt, and reference numeral 38 is a material feeding portion.

On the other hand, as shown in FIGS. 3 and 5, the outer pipe extruder 11 has its tip portion joined to the tip portion of the inner pipe extruder 3 so that its axial direction is substantially orthogonal to the axial direction of the inner pipe extruder 3. It is arranged to let.

Like the inner pipe extruder 3, the outer pipe extruder 11 is supported and fixed to a base 37 by a cylinder support base 33 and a drive unit support base 35. Specifically, the upper end flange 33a of the cylinder support base 33 and the flange 39a of the support leg portion 39 projecting downward from the substantially central portion of the cylinder 14 are bolted to form a lower end flange 33b of the cylinder support base 33. The base 37 is bolted. Similarly, the upper and lower flanges 3a and 3b of the base support 35 are bolted to the flange 41a of the support leg 41 of the gear box 34 and the base 37, respectively.

The outer tube head 16 is placed on the support base 49 without being fixed by any bolt or the like. This is because the outer tube extruder 11 is fixed as a whole, so that the outer tube head 1
The reason for this is that if it is fixed to 6, the strain escape area when the outer pipe extruder 11 is operated disappears, and the strain accumulates in the outer pipe extruder 11, which is not preferable.

In the figure, reference numeral 42 is a drive motor, reference numeral 46 is a belt,
Reference numeral 48 is a material charging section.

Conventionally, as described above, each extruder is fixed at the base side portion in order to prevent the apparatus from shaking due to the strain generated when each extruder is operated.

<Problems to be Solved by the Invention> When manufacturing the reinforcing hose A by using the reinforcing hose manufacturing apparatus 1 having the above-described configuration, the most difficult point of the worker is the inner pipe head 6 and the outer pipe head 16. It was in alignment. this is,
This is because when the inner and outer pipe extruders 3 and 11 are operated, the inner and outer pipe heads 6 and 16 are shaken independently due to the strain of each extruder. For example, in the inner pipe extruder 3 (size screw diameter: 70 mm, screw length: 1400 mm) operated by the applicant of the present application, the eccentric amount of the inner pipe head 6 was about 0.7 mm. Further, in the outer pipe extruder 11 (size screw diameter: 70 mm, screw length: 1040 mm), the eccentric amount of the outer pipe head 16 was about 0.4 mm.

Therefore, in order to make the wall thickness of the reinforcement hose A uniform, the operator operates each extruder to manufacture the reinforcement hose A, and confirms the uneven thickness state of the hose while checking the uneven thickness state of the hose 6 and 16 die. 5, 13, 15 are adjusted by the die pressers 18, 19 and position adjusting bolts (not shown).

However, the shake of each extruder is determined by the extrusion pressure, the temperature-the material (viscosity, etc.) of the molding material, and changes due to the vibration of the driving unit, so that the eccentricity of each head 6 and 16 also changes. Therefore, it took skill and time to align the heads 6 and 16. According to the research conducted by the present inventors, it takes 30 to 45 minutes for a skilled worker to perform this alignment.

The centering work needs to be performed by the eccentric actor of the head not only when the work is started but also when the heads 6 and 16 are converted and the materials are replaced.

Originally, the reinforcing hose manufacturing apparatus 1 has a remarkable effect of increasing the manufacturing efficiency of the reinforcing hose by forming the inner tube layer, the reinforcing layer, and the outer tube layer substantially at the same time. If the matching work is time-consuming, the effect may be diminished.

Further, eccentricity of the heads 6 and 16 may occur during the operation of the apparatus once the centers of the heads 6 and 16 are aligned with each other. Therefore, the operator must constantly monitor the eccentricity of the product hose A. I won't. That is, there is a problem in that the device is unmanned.

The present invention solves the above-mentioned problems and can suppress the shake of the outer extruder on the head side, which occurs during operation, and facilitates the centering work to shorten the working time. It is an object of the present invention to provide an apparatus for manufacturing a reinforcing hose which can be operated and can be unmanned by improving the operation rate.

<Means for Solving Problems> The inventors of the present invention have made earnest studies to solve the problems described above, and as a result, if the deviation in the extruder causing the eccentricity of each head is released to another, Good thing to notice is that, as an arrangement mode on the base of the inner pipe extruder, the inner pipe extruder is fixed at a substantially middle portion in the axial direction of the inner pipe extruder, and is separated from the inner pipe head from the middle portion. An outer pipe extrusion in which the axial side part of the inner pipe extruder is movably supported in a direction substantially orthogonal to the axial direction of the inner pipe extruder, and the axial direction is arranged in a direction substantially orthogonal to the inner pipe extruder. As an arrangement mode on the base of the machine, the outer tube head is fixed, and the axial side base portion of the outer tube extruder separated from the outer tube head is movable in the axial direction of the outer tube extruder. The invention has been conceived in a supported construction.

<Example> Hereinafter, an example of the present invention will be described with reference to the drawings (Figs. 1 and 2). The same members as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted.

In the reinforcing hose manufacturing apparatus 51 of the embodiment, the inner tube extruder 3 is also used.
The outer tube extruder 11 and the outer tube extruder 11 are joined to each other at their distal end portions so that their axial directions are substantially orthogonal to each other.

The inner pipe extruder 3 is provided with a cylinder 4, a material feeding portion 38, a gear box 24, and a drive motor 32 from the inner pipe head 6 to the base side which is separated along the axial direction of the inner pipe extruder 3. A reinforcing layer forming device 21 is concentrically arranged on the outer circumference. The gear box 24 and the drive motor 32 on the base side portion of the inner pipe extruder 3 are fixed to the carriage 53. The carriage 53 is moved by a rail 58 on a plane perpendicular to the plane of the drawing so as to be movable in a direction substantially orthogonal to the axial direction of the inner pipe extruder 3 about the support leg 57. It is freely installed on the base 55. In addition, the cylinder 4 (near the tip of the material feeding section 38) at a substantially intermediate portion in the axial direction of the inner pipe extruder 3 has a support leg portion 57.
The support legs 57 are bolted to the base 55 by the flanges 57a thereof.

When the inner pipe extruder 3 is installed in this manner, when it is operated, a shake occurs around the support leg 57. However, unlike the conventional example, this blur does not all concentrate on the inner pipe head 6, and also escapes to the base side portion on the carriage 53. Therefore, the deviation when the inner pipe extruder 3 is operated is absorbed, and as a result, the eccentric amount of the inner pipe head 6 becomes small.

In addition, in the above, in the moving direction of the carriage 53, the eccentric amount of the inner pipe head 6 was 0.7 mm in the conventional example, in which the amount of sway of the inner pipe extruder 3 was only one. It is considered that the upper part should be movable in the direction perpendicular to the paper surface.

As described above, if the carriage 53 is configured to move only in the direction perpendicular to the plane of the drawing, the axial displacement of the inner pipe extruder 3 cannot be escaped, but the inner pipe head 6 is not eccentric due to such displacement and can be ignored. . In other words, in this case, since the inner pipe head 6 only shifts in the axial direction of the inner pipe extruder 3, the uneven thickness phenomenon does not appear in the inner pipe of the reinforcing hose A.

Of course, as a shake absorbing means for making the base side portion of the inner pipe extruder 3 movable, a rolling member such as a roller is interposed between the gear box 24 or the drive motor 32 and the base 55 instead of the carriage 53. The same is true.

It should be noted that it is preferable to fix the cylinder 4 at a position as close as possible to the reinforcing layer forming device 21 in order to efficiently escape the shake during operation of the inner pipe extruder 3 to the carriage (actually, the inner pipe head). I want to fix 6, but I can not because it interferes with the reinforcement layer forming device 21).

According to the inner pipe extruder 3 installed in such a configuration, the eccentricity of the inner pipe head 6 is reduced to 0.25 mm (0.7 mm in the conventional example) even if the size is the same as the conventional example. It was).

On the other hand, the outer tube extruder 11 of the embodiment has a base 3 on the base side which is separated from the outer tube head 16 along the axial direction of the outer tube extruder 21.
7, a wheel 63 is provided, and this wheel is used as a carriage 65, and is installed on a new base 67. And this base 67
In this configuration, a rocket type head fixing column 69 is fixed, and the outer pipe head 16 is fixed to the upper end of the head fixing column 69.

The outer pipe head 16-head fixing column 69-base 67 are fixed by, for example, bolting.

The dolly 65 of the embodiment is movable in the left-right direction (axial direction of the outer tube extruder 11) in FIG. This is because eccentricity of the outer pipe head 16 in this direction causes uneven thickness of the outer pipe of the reinforcing hose A, and it is sufficient to allow the sway of the outer pipe extruder 11 to escape in this direction. Of course,
Similar to the inner pipe extruder 3, the carriage 65 (or the substrate 37) may be installed on the new base 67 so as to be axially movable via rails.

In the outer pipe extruder 11, since the outer pipe head 16 is fixed, the outer pipe head 16 is hardly eccentric,
According to the study by the present inventors, the amount of eccentricity was only 0.04 mm.

In the embodiment having such a configuration, the inner and outer pipe extruders 3, 11
The blurring caused when the vehicle is operated is absorbed by the base side portion mounted on the carriages 53 and 65. Therefore, since the shake on the head side-the amount of eccentricity-relatively decreases, the centering of the inner and outer pipe heads 6 and 16 becomes easy.

According to the study by the present inventors, when the reinforcing hose manufacturing apparatus 51 of the embodiment is used, the alignment work can be completed in 5 to 15 minutes by an unskilled person-no new person because it is a new apparatus. Compared with the conventional example (working time; 30 to 45 minutes), it can be seen that the working time for alignment is shortened to 1/3 to 1/5. It should be noted that if the worker becomes skilled, this alignment work is expected to be further shortened.

Further, even when the extruders 3 and 11 were in operation, the heads 6 and 16 were less likely to be eccentric, and unmanned operation could be achieved.

<Effects of the Invention> As described above, according to the present invention, the shake generated when the inner and outer pipe extruders are operated is absorbed at the base side portions of the inner and outer pipe extruders. In addition, the shake on the head side is reduced and the head is less likely to be eccentric.

This facilitates the work of aligning the head, and the work time is greatly reduced.

Further, the head is less likely to be eccentric even during the operation of the apparatus for manufacturing the reinforcing hose, so that the operator need not monitor the apparatus.

That is, according to the present invention, there is an effect that the operating rate of the apparatus for manufacturing the reinforcing hose can be improved and the apparatus can be more unmanned.

[Brief description of drawings]

FIG. 1 is a front view of a reinforcing hose manufacturing apparatus according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a plan sectional view near a head portion of a conventional reinforcing hose manufacturing apparatus. FIG. 5 is a front view of a conventional reinforcing hose manufacturing apparatus, and FIG. 5 is a side view thereof. 1, 51 ...... Reinforcement hose manufacturing device, 3 ...... Inner pipe extruder, 4 ...... Cylinder, 6 ...... Inner pipe head, 11 ...... Outer pipe extruder, 14 ...... Cylinder, 16 ...... Outer pipe head , 21 ... Reinforcing layer forming device, 53, 65 ... Bogie (shake absorbing means).

Claims (1)

[Claims] 1. An inner pipe head arranged at the tip of an inner pipe extruder is formed with a torpedo by protruding from a tip portion of an inner pipe die concentrically arranged with the inner pipe head. , The outer tube extruder is substantially orthogonal to the inner tube extruder in the axial direction,
Further, the material outlet formed by an intermediate die and an outer pipe die, each of which is supported by an outer pipe head arranged at the tip of the outer pipe extruder, is close to the inner pipe die, and the outer periphery of the torpedo Further, the reinforcing layer forming device is arranged so as to be formed on the inner pipe immediately after being extruded from the inner die immediately after being extruded from the gap between the intermediate die and the inner pipe die. A manufacturing device for a reinforcing hose arranged concentrically with a cylinder of a pipe extruder, wherein the inner pipe extruder is fixed at a substantially intermediate portion in the axial direction of the inner pipe extruder. Also disposed on the base is a portion of the inner tube extruder axially distant from the inner tube head, which is movably supported in a direction substantially orthogonal to the axial direction of the inner tube extruder. The outer tube extruder is fixed to the outer tube head, and the outer tube head is fixed. Reinforcing hose, characterized in that the base side portion in the axial direction of the outer tube extruder, which is remote from the outer tube extruder, is movably supported in the axial direction of the outer tube extruder and is arranged on a base. Manufacturing equipment.