JP2551282B2 - Reinforcement layer forming device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing layer forming device for forming a reinforcing layer of a reinforcing hose. In particular, the present invention relates to a reinforcing layer forming device suitable for forming a reinforcing layer on an extruded tube immediately after extrusion.

As a reinforcing hose to which the present invention can be applied,
A fuel hose, a water hose, an air hose, a brake hose, a hydraulic hose, etc. can be mentioned. Here, a spiral device will be described as an example of the reinforcing layer forming device. The present invention is not limited to this, but can be applied to a braiding device and the like.

[0003]

2. Description of the Related Art As an apparatus for continuously manufacturing a reinforcing hose by forming a reinforcing layer on an extruded tube immediately after extrusion, there is, for example, a manufacturing apparatus having the following structure (see Japanese Patent Publication No. 50132/1985).

"A torpedo is formed by projecting from the tip portion of the inner pipe die of the inner pipe extruder, and the outer pipe extruder forms a material outlet formed by the intermediate die and the outer pipe die. The reinforcing layer forming device is arranged so as to be formed on the outer periphery of the torpedo in the vicinity of the die, and the reinforcing layer forming device guides the reinforcing yarn onto the inner pipe immediately after extrusion through the gap between the intermediate die and the inner pipe die and drives it. Reinforcement hose manufacturing equipment arranged as possible "

[0005]

When the reinforcing layer forming device is a spiral device, the outline thereof is as follows (see FIGS. 4 to 5).

A carrier driving member 3 installed on the base of the apparatus and inner and outer bobbin carriers 5 and 7 driven and rotated in opposite directions by the carrier driving member 3 are provided. It is composed of a main body 11 and a driving means (not shown).

As shown in FIG. 3, the drive body 11 is integrated with the fixed barrel 12 and the outer bobbin carrier 7 and is supported by the fixed barrel 12 as a bearing.
And the inner bobbin carrier 5 and the outer rotary cylinder 14
And an oil supply means for supplying oil to each bearing.

The refueling means is formed in the fixed barrel 12 through a refueling port 16 and between the fixed body 12 and the outer rotating drum 14 by sealing both side surfaces, and an annular oil reservoir portion communicating with the refueling port 16. 17, an oil feed hole 18, which is formed in the outer rotary cylinder 14 and has a function of sending the oil in the oil sump portion 17 to the inside of the outer rotary cylinder 14, and the like.

As shown in the figure, a plurality of oil feed holes 18 for feeding the oil in the oil sump 17 are formed in the same direction as the sectional normal line of the outer rotary cylinder 14 (eight in the figure). .

[0010]

DISCLOSURE OF THE INVENTION In the apparatus for manufacturing a reinforcing hose having the above structure, the present inventors have examined increasing the extrusion rate of the hose inner tube in order to increase the production amount per unit time.

As a result of the above examination, it has been found that the oil supply means is hard to function sufficiently. That is, the temperature of the drive main body and the overload of the prime mover are likely to occur due to insufficient oil supply to the bearing.

In view of the above, it is an object of the present invention to provide a reinforcing layer forming device in which the oil supply means of the drive body portion in the reinforcing layer forming device can sufficiently function.

[0013]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present inventors have come up with the following hypothesis in the process of earnestly developing.

In order to increase the extrusion speed of the inner pipe, the diameter of the extrusion cylinder 27 of the inner pipe extruder 26 becomes large (see FIG. 4). Therefore, the cylindrical drive body 11 also has a large diameter and the outside The rotation speed of the rotary cylinder 14 also increases. For this reason, the oil in the oil sump portion 17 that has flowed in from the oil supply port 16 is
Even if it partially flows into 8, the outer rotating cylinder 1
The inside of 4 cannot be reached. As in the past, when the diameter of the drive body is small and the rotation speed of the outer rotating cylinder is small,
The rotation of the outer rotating cylinder does not generate a centrifugal force that hinders the oil from reaching the inside of the outer rotating cylinder.

On the basis of the above hypothesis, if the first oil feed hole is formed so as to be oblique to the normal line of the cross section of the outer rotating cylinder, that is, in the direction of scooping up the oil in the oil sump, the centrifugal force will be increased. It was found that the oil was scooped up by being given an initial speed that overcomes the force, and that the oil passes through the oil feed hole and reaches the inner side of the inner rotating cylinder, and conceived a reinforcing layer forming device having the following configuration.

“For forming a reinforcing layer of a reinforcing hose
The reinforcement layer forming device of the
Carrier drive member and carrier drive member
Equipped with inner and outer bobbin carriers that are driven and rotated in opposite directions
The carrier drive member includes a cylindrical drive body and a drive body.
And a drive means, Outer bobbin
An outer rotating cylinder which is integrated with a carrier and supported by a bearing,
It is integrated with the inner bobbin carrier and has a shaft on the outer rotary cylinder.
And an inner rotating cylinder that is supported by the inner rotating cylinder.
A means for supplying oil to each bearing of the rolling cylinder shaft and the outer rotating cylinder is provided,
The oil supply means is formed so that the oil surface contacts the lower part of the outer rotating cylinder.
The oil sump formed on the outer rotating cylinder and the oil in the sump
Equipped with an oil feed hole for feeding oil to the bearing of the inner rotating cylinder
The oil feed hole formed on the outer rotating cylinder
Formed diagonally to the normal so that the inner side faces the direction of body rotation
Has been done. "

[0017]

The present invention will be described below based on an embodiment.

A. A plan view of the overall schematic configuration is shown in FIG.

The reinforcing layer forming device (spiral device) is
It comprises a carrier driving member 3 installed on a base, and inner and outer bobbin carriers 5, 7 which are driven and rotated in opposite directions by the carrier driving member 3. Then, as shown in the drawing, the spiral device is a composite extrusion head in which the extrusion cylinder 27 of the inner tube extruder 26 is coaxially surrounded by the drive body 11 of the spiral device and is connected to the tip of the extrusion cylinder 27. It is arranged in 28 so that a reinforcing layer can be formed. The composite extrusion head 28 is the extrusion cylinder 3 of the outer tube extruder 29.
0 is also connected so that inner pipe extrusion, reinforcement layer formation, and outer pipe extrusion are performed continuously and simultaneously in the extrusion head. Further, as shown in the figure, a plurality of bobbins 6 (12 pieces in the figure) can be attached to each bobbin carrier.

B. The carrier drive member is composed of a drive body and drive means (see FIGS. 1-2).

(1) The drive main body 11 has a fixed barrel 12
The outer bobbin carrier 7 is integrated with the outer bobbin carrier 7 and is supported by the outer cylinder barrel 21 on the fixed cylinder 12, and the inner bobbin carrier 5 is integrated with the outer bobbin carrier 5. The inner rotating cylinder 15 is supported.

Each member will be supplementarily described.

(A) The fixed barrel 12 is directly supported on the substrate 2 on the apparatus base 1 by a bracket.

(B) The outer rotating body bearing 21 is composed of two ball bearings on the front end side and one on the rear end side. The number of the outer bobbin carriers 7 is two at the tip side because the outer bobbin carrier 7 is fixed to the tip side.

(C) The inner rotating body bearing 22 is also the outer rotating body bearing 2
Like No. 1, it consists of two ball bearings on the front side and one on the rear side.

(2) The drive means is configured to drive the outer and inner rotating drums in synchronization. Specifically, the first and second pulleys 23 and 24 integrated on the rear end side of the rotary drums 14 and 15 are provided, for example, as output shaft pulleys of a transmission driven by an unillustrated prime mover and belts. Be hung.

C. The drive body 11 includes an outer rotating body bearing 14
And means for supplying oil to the inner rotating body bearing 22.

The refueling means is composed of a refueling port 16 formed at an intermediate portion of the fixed barrel 12 in the longitudinal direction, the fixed barrel 12 and the outer rotary drum 1.
4, an annular oil sump portion 17 formed to seal both side surfaces and communicating with the oil supply port 16 and an outer rotary cylinder 14, and oil of the oil sump portion 17 is supplied to the inner rotary cylinder bearing 21. The first oil feed hole 18 that carries the feeding action and the outer rotary cylinder bearing 21 of the oil formed in the outer rotary cylinder 14 and passed through the inner rotary cylinder bearing 22
Second oil feed hole 19 for fixing oil to the fixed cylinder 12
The oil supply port 20 which is formed on the outer surface of the outer rotating body bearing 21 and is arranged between the oil discharge port 20 and the oil supply port 16 to forcibly transfer and replenish the oil between the oil discharge port 20 and the oil supply port 16. Piping 3
It consists of 1.

Supplementary explanation will be given for each part.

(A) In the illustrated example, the oil supply port 16 is formed at the central position in the longitudinal direction of the fixed barrel 12 and at the upper portion. The position of the fuel filler 16 is usually formed in the upper half of the fixed barrel 12. If formed too much on the lower side, the oil level will be close to the oil level L of the oil sump 17, and it will be difficult to smoothly refuel.

(B) In the illustrated example, both side surface seals of the oil sump portion 17 are formed on both sides of the oil sump portion 17 by dam portions 17a formed on the both sides of the oil sump portion 17 and projecting from the fixed barrel. , 8a are brought into contact with each other.

(C) A plurality of first oil feed holes 18 are formed at an equal pitch (eight in the illustrated example), and the outlets facing the outer circumference of the inner rotating cylinder 15 are provided with respective balls on the front and rear sides. The openings 18a are alternately oriented toward the front end side and the rear end side in order to smooth the oil flow to the bearing.

Here, the first oil feed hole 18 is formed obliquely with respect to the normal line so that the inner side faces the direction of rotation of the outer rotary cylinder 14. This diagonal angle is usually 10 to the normal.
60 °. If it is less than 10 °, there is almost no effect of scooping up the oil from the oil sump 17, and if it exceeds 60 °,
The length of the first oil feed hole 18 becomes too long, and in either case, it is difficult for oil to reach the inside of the outer rotating cylinder 14.

(D) The second oil feed hole 19 is formed in the inner rotating barrel bearing 2
A plurality (4 pieces each) are formed from the outer side of the front / rear end ball bearings forming 2 to the outer side of the front / rear end ball bearings that are the outer rotating body bearings 21. Here, the gland packing 9 is provided at both ends of the outer rotating cylinder 14 and the inner rotating cylinder 15 so that the oil passing through the outer rotating cylinder bearing 21 does not leak to the outside from between the inner rotating cylinder 15 and the outer rotating cylinder 14. It is arranged in the formed annular gap. Similarly, in order to prevent the oil that has passed through the second oil feed hole 19 from leaking between the inner rotating drum 15 and the fixed drum 12, the fixed drum 12 and the inner rotating drum 1
5 are arranged in annular gaps formed at both ends.

(E) The oil drain port 20 is provided on both sides of the outer rotary body bearing 2
1 fixed cylinder 1 located between the oil reservoir 17 and the oil reservoir 17
2 is formed. The oil drain port 20 is bent at the substrate 2 portion and is connected to the oil supply pipe 31.

(F) As shown in the figure, the oil supply pipe 31 sandwiches the oil replenishment tank 32, and the suction pump 3 is provided on the oil discharge port connection side.
3. The discharge pump 34 is provided on the fuel filler port connection side.

E. Next, the mode of use of the above-described embodiment mainly in oil supply mechanism.

As in the conventional case, the spiral device 10 is started together with the inner pipe extruder 26 and the outer pipe extruder 27 to operate the reinforcing layer manufacturing apparatus. At this time, the outer rotary cylinder 14 and the inner rotary cylinder 15 of the drive body 11 in the spiral device 10
Is driven by a pulley to rotate the inner and outer bobbin carriers 5 and 7 in opposite directions to form a spiral reinforcing layer on the extruded pipe (inner pipe).

At the same time, the suction / discharge pumps 33, 34 of the oil supply pipe 31 are also activated to operate the oil supply means of the drive body 11. Then, the oil supplied from the oil supply port 16 of the fixed barrel 12 is stored in the oil sump 17 → first oil feed hole 18 → inner rotary barrel bearing 22 → second oil feed hole 19 → outer rotary barrel bearing 21 → drain port It circulates from 20 → refueling pipe 31 → refueling port 16.

Even if the drive main body 11 has a large diameter and the outer rotating cylinder 14 rotates at high speed, the oil is scooped at an initial speed that overcomes the centrifugal force, and the first oil feed hole 18 is provided. To reach the inner side of the inner rotating cylinder 15. Therefore, there is no possibility that the amount of oil flowing into each of the bearings 22 and 21 will be insufficient and the temperature of the drive main body will rise and that the problem of overload of the prime mover will occur.

[0041]

The function and effect of the present invention are as follows.
As described above, in the bearing oil supply means of the drive main body including the inner rotating cylinder and the outer rotating cylinder, the oil feed hole for sending the oil in the oil sump portion formed in the lower portion of the outer rotating cylinder to the inside of the rotating cylinder is provided. ,
With the configuration that it is formed obliquely intersecting the normal line so that the inner side faces the direction of rotation of the outer rotating cylinder,
It works.

Here, the drive main body has a large diameter, and
Even if the drive body rotates at high speed and centrifugal force acts on the oil, the feed hole is formed so as to be oblique to the normal line so that the inner side faces in the rotation direction of the outer rotating cylinder. The oil is scooped up by being given an initial speed that overcomes the centrifugal force, passes through the oil feed hole, and reaches the inside of the outer rotating cylinder. Therefore, there is no risk that the temperature rise of the drive main body and the problem of overload of the prime mover will occur due to the insufficient amount of oil flowing into each bearing. Therefore, the production amount of the reinforcing hose per unit time can be increased.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a drive body portion in a reinforcing layer forming apparatus showing an embodiment of the present invention,

FIG. 2 is a schematic cross-sectional view of the drive body portion taken along line II-II in FIG.

3 is a schematic cross-sectional view of a drive body portion showing a conventional configuration corresponding to FIG.

FIG. 4 is a schematic plan view of a reinforcing hose manufacturing apparatus to which the present invention can be applied.

5 is a bobbin carrier layout diagram in the spiral device of FIG. 4. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 3 Carrier drive member 5 Inner bobbin carrier 7 Outer bobbin carrier 10 Spiral device 11 Drive body part 12 Fixed barrel 14 Outer rotary barrel 15 Inner rotary barrel 16 Oil supply port 17 Oil sump portion 18 First oil feed hole 19 Second oil feed Hole 20 Oil drain port 21 Outer rotating body bearing 22 Inner rotating body bearing 31 Oil supply pipe

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location B29L 23:00

Claims (2)

(57) [Claims] 1. A supplement for forming a reinforcing layer of a reinforcing hose.
A strong layer forming apparatus, comprising: a carrier driving member installed on an apparatus base;
The inner parts are driven and rotated in opposite directions by the drive member.
An outer bobbin carrier, wherein the carrier driving member comprises a cylindrical driving body and a driving hand.
And a drive main body portion, Integrated with the outer bobbin carrier
And an outer rotating cylinder supported by a bearing, Inner bobbin carrier
Inner rotation integrated with the bearing and supported by the outer cylinder
A cylinder, and an inner rotating cylinder shaft and an outer rotating cylinder.
The oiling means is provided to each bearing of the
The oil sump portion formed, the oil sump portion formed on the outer rotating cylinder
The oil feed hole that is responsible for feeding the oil of the oil to the bearing of the inner rotating cylinder.
And an oil feed hole formed in the outer rotating cylinder,
It is formed by obliquely intersecting with the normal so that the inner side faces in the direction of rotation.
The reinforcing layer forming device is characterized in that 2. A supplement for forming a reinforcing layer of a reinforcing hose.
A strong layer forming apparatus, comprising: a carrier driving member installed on an apparatus base;
The inner parts are driven and rotated in opposite directions by the drive member.
An outer bobbin carrier, wherein the carrier driving member comprises a cylindrical driving body and a driving hand.
The drive body includes a fixed barrel and the outer bobbin carrier.
Integrated with the outer shell and supported on the fixed barrel by an outer rotating barrel bearing.
An outer rotating cylinder and an inner bobbin carrier,
An inner rotating cylinder supported by an inner rotating cylinder bearing on the outer rotating cylinder
When it comes toTomoTo the inner rotating body bearing and the outer rotating body bearing
And a driving means capable of driving the outer and inner rotating drums in synchronization with each other.
The refueling means is formed in the middle portion in the longitudinal direction of the fixed barrel.
And a side wall between the fixed cylinder and the outer rotating cylinder
A ring-shaped oil that is formed by sealing the
A sump portion, which is formed on the outer rotary cylinder, stores the oil in the sump portion.
The first oil feed hole, which is responsible for feeding oil to the inner rotating barrel bearing, Before
It is formed on the outer rotating cylinder, and the inner rotating body shaftReceiveOut of the oil that has passed
Rotating body axisTo receivingThe second oil feed hole that is responsible for the oil feed action of
Formed on a fixed barrel, the outer rotating body shaftReceiveDrain the oil that has passed
An oil drain outlet, which is placed between the oil drain outlet and the oil filler outlet.
Oil pipes that can forcibly transfer and replenish oil between the two.
And the first oil feed hole has an inner side in the rotation direction of the outer rotating cylinder.
The feature is that it is formed so as to cross the normal as it goes.
Reinforcement layer forming device for collection.