JPH11130008A - Wrapping apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a dedicated wrapping machine for wrapping a tape or the like on a composition surface in a composing process, in a braider for manufacturing pipes. SOLUTION: A mandrel transfer means 3 for supporting both lengthwise ends Ma, Mb of a mandrel M for moving the mandrel M in an axial direction is provided, and a tape wrapping unit 4 for winding a tape on a composition layer of the mandrel during transfer of the mandrel M is fixed at a predetermined position with respect to the transfer means 3. The tape wrapping unit 4 includes a tape wrapping mechanism TR and comprises a mandrel deflection preventing means 28 for preventing the mandrel M from deflecting provided at least one of upstream and downstream sides of the tape wrapping mechanism TR.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe,
It is related to a braider device for manufacturing a pipe having a non-uniform cross-sectional area in the length direction used for a tapered shaft, a fishing rod, and the like.
The present invention relates to a wrapping device for wrapping a heat-shrinkable tape or the like on the surface of a composition.

[0002]

2. Description of the Related Art Conventionally, a tapered shaft or a tapered pipe is formed by winding a plurality of parallel resin impregnated thread-like layers in a cylindrical shape in different directions of fibers by a braider device. Manufactured by ding processing. Further, the pipe product as described above includes, in addition to the braiding process, a manufacturing process of lapping a heat shrink tape or the like on the surface of the composition in the composition process.

[0003] Fig. 8 shows a specific example of a conventional apparatus for producing such a pipe product by braiding and lapping. This conventional pipe manufacturing apparatus employs a configuration in which an automatic mandrel replenishing device 51, a blader unit 52, a tape wrapping device 53, and an automatic preform unloading device 54 are sequentially arranged in series. Wheels 56 are attached to the respective blade units 52 so that they can be moved to the left and right when the bobbin carrier 55 is replaced with a bobbin. In these blader units 52, the mandrel M is held by the chuck 63 of the automatic mandrel replenishing device 51 and moves to the working position of each unit 52, and the mandrel M is sequentially moved from the unit 52 on the downstream side.
The composition is made on the surface.

In this conventional pipe manufacturing apparatus, one mandrel is taken out by the automatic mandrel replenishing device 51 and the rear end thereof is held by the chuck 63 of the automatic mandrel replenishing device 51. Then, the chuck 63 moves until the front end of the mandrel comes out of the working position of the tape wrapping device 53, and in the moving process, the composition is made on the mandrel surface in order from the downstream blader unit 52, and then the tape is wrapped by the tape wrapping device 53. Is wrapped.

When the front end of the mandrel comes out of the working position of the tape wrapping device 53, the chuck 64 of the automatic preform removing device 54 holds the front end of the front end of the mandrel, and the chuck 63 of the automatic mandrel replenishing device 51 is opened. Return to the standby position. Then, the chuck 64 of the automatic preform removal device 54 moves to the left until the rear end of the mandrel comes out of the working position of the tape wrapping device 53. During the transfer process, composition and tape wrapping are performed subsequently.

When the rear end of the mandrel comes out of the working position of the tape wrapping device 53, the chuck 64 of the automatic preform unloading device 54 is opened, and then the cutter 65 moves down and operates to reach the rear end of the preform. The thread and tape are cut and lowered into place. Then, the chuck and the cutter return to the standby position. In the above composition operation and tape wrapping operation, centering of the mandrel, composition point determination, and lapping positioning are performed.

[0007] This tape wrapping is a process for molding and curing a thermosetting synthetic resin impregnated in a yarn at the time of braiding molding using a heat-shrinkable tape,
For example, it has a configuration in which a tape having a width of about 20 mm is spirally wound at a pitch of several millimeters.

[0008]

The tape wrapping device in this conventional pipe manufacturing apparatus is configured as a device attached to a blader unit. For example, during tape wrapping processing, an unbalanced vibration of the device causes a mandrel. In such a case, there was a problem in that the tape wrapping process could not be performed at a constant pitch, or wrinkles could be formed on the tape wound on the composition layer of the mandrel. In addition, when the wrapping is double-wrapped, a wrapping-dedicated machine for performing the second wrapping is required.

Accordingly, the present invention relates to a tape wrapping apparatus in a pipe manufacturing apparatus as described above, wherein a thread (carbon thread) impregnated with a thermosetting synthetic resin is braided on a mandrel, and then a heat-shrinkable tape is formed. Accordingly, it is an object of the present invention to provide a wrapping device that specializes in tape wrapping for wrapping and molding.

[0010]

In order to achieve the above object, the present invention specifically provides a mandrel transfer means for supporting both ends of a mandrel in the longitudinal direction and moving the mandrel in the axial direction. And a wrapping device in which a tape wrapping unit for wrapping a tape on the composition layer of the mandrel during the transfer of the mandrel is fixedly arranged at a fixed position with respect to the transfer means.

Further, in the present invention, the tape wrapping unit includes a tape wrapping mechanism, and at least one of an upstream side and a downstream side of the tape wrapping mechanism is provided with a mandrel deflection preventing means for preventing a deflection of the mandrel. It constitutes a wrapping device.

Still further, in the present invention, the tape wrapping unit includes a tape wrapping mechanism, and the tape wrapping mechanism is provided with a wrinkle preventing means for preventing the tape from wrinkling vertically. It also does.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a wrapping device according to the present invention will be described in detail based on a specific embodiment shown in the drawings. FIG. 1 is a front view schematically showing the overall configuration of a specific embodiment of a wrapping device according to the present invention. FIG. 2 is a schematic front view for explaining the structure of the fixed lapping unit in the lapping device, and FIG. 3 is a schematic side view as viewed in the direction of arrow A in FIG.

On the other hand, FIG. 4 is a schematic side view showing a specific configuration example in which a mandrel deflection preventing means is incorporated in the fixed lapping unit in the lapping device shown in FIG. 1, and FIG. FIG. 6 is a side view showing a first specific embodiment of a mandrel vibration preventing means for preventing the vibration of the mandrel, and FIG.
FIG. 6 is a schematic perspective view of a mandrel runout prevention unit according to the first embodiment shown in FIG. 5. FIG. 7 is a schematic perspective view showing a second specific embodiment of the mandrel shake preventing means.

The wrapping device 1 according to the present invention basically comprises a mandrel supporting means 2 for supporting both ends in the longitudinal direction of the mandrel, and a mandrel transfer means for moving the mandrel in the axial direction together with the mandrel supporting means 2. Means 3 and a tape wrapping unit 4 for winding a tape on the composition layer of the mandrel during the transfer of the mandrel. In particular, the tape wrapping unit 4 is fixed to the mandrel transfer means 3. It is fixedly arranged at the position.

Referring to FIG. 1, the wrapping device 1
Will be described in detail. The lapping apparatus 1 includes a machine base 5, and two base frames 6, 6 functioning as guide rails are provided on the machine base 5.

The mandrel support means 2 includes a mandrel erection frame 8 having a traveling roller 7, a first end frame 9 extending upward to one end 8 a of the mandrel erection frame 8, and a mandrel erection frame 8. A second end frame 10 extending upward to the other end 8b of the first end frame 9; and one end Ma side of a mandrel M (hereinafter simply referred to as a mandrel) M, which is attached to the first end frame 9 and has been subjected to braid processing. It comprises a mandrel support jig 11 for supporting, and a mandrel chuck 12 attached to the second end frame 10 for chucking and supporting the other end Mb side of the mandrel M.

In the present invention, as shown in FIG. 1, the mandrel support means 2 includes a position adjusting screw 13 for adjusting the mounting position of the first end frame 9 according to the length of the mandrel M. The first end frame 9 can be positioned and set at a desired position on one end 8 a of the mandrel erection frame 8 by operating the position adjusting screw 13.

A mandrel transfer means 3 for moving the mandrel in the axial direction together with the mandrel support means 2
Is constituted by a conveyor 15 provided on the machine base 5 including a drive source 14, and the mandrel support means 2 is arranged along the base frames 6, 6 in FIG.
It is possible to move from a first position shown by a solid line to a second position shown by a virtual line.

In the present invention, the mandrel transfer means 3
In the process of moving the mandrel along with the mandrel support means 2 in the axial direction, the tape wrapping unit 4 operates to wind the tape on the composition layer of the mandrel. During this lapping, a mandrel deflection preventing means described later holds the mandrel to prevent the deflection of the mandrel due to the lapping. The lapping pitch (lapping interval) and the like are changed by changing the lapping rotation speed and the feed speed of the mandrel transfer means 3.

Next, the wrapping device 1 according to the present invention
A specific configuration of the tape wrapping unit 4 will be described. The tape wrapping unit 4 includes:
The mandrel transfer means 3 is fixedly arranged with respect to the machine base 5 so as to be at a fixed position.

The tape wrapping mechanism TR of the tape wrapping unit 4 has a structure as shown in FIGS. In the tape wrapping mechanism TR, the rotational force of the motor 17 is transmitted to the rotating disk 18 via the timing pulley belt 16 so that the tape reel 19 mounted on the rotating disk 18 circulates around the mandrel M, The wrapping is performed by the tape T stored in the reel 19. In this case, the magnetic torque limiter 20 includes a first gear 21,
A brake is applied to the rotation of the idler 24 having the rubber surface 25 on the surface via the second gear 22 and the third gear 23,
The tension is applied to the tape T to prevent loosening of the winding.

Further, in the present invention, wrinkle preventing means 26 for preventing vertical wrinkles of the tape T wound on the mandrel M is provided in connection with the tape wrapping mechanism TR. The wrinkle prevention means 26 includes a wrinkle prevention guide 27.
Consists of The wrinkle preventing means 26 increases the distance between the center of rotation of the rotating disk 18 and the idler 24 so as to cope with a large mandrel diameter.
When the tape T is wound around, a vertical wrinkle is formed between the idler 24 and the mandrel M, which propagates to the idler side, and the tape is wound with wrinkles, and the surface after wrapping becomes uneven. The wrinkle prevention guide 27 is provided between the idler 24 and the mandrel M so as to contact the tape T.

Next, the mandrel deflection preventing means 28 in the lapping apparatus 1 of the present invention will be described with reference to FIGS.
This will be described in detail with reference to FIG. The mandrel deflection preventing means 28 is for preventing the deflection of the mandrel when wrapping the mandrel M with the tape T.
In particular, according to the present invention, at the beginning of winding the tape T, FIG.
As shown in FIG. 5, the mandrel chuck 12 is configured to pass through the mandrel shake preventing means 28 and to be positioned on the tape wrapping mechanism TR side. 29, 30.
The left and right roller pairs need to be moved closer and farther apart so that 30 does not interfere with the mandrel chuck 12.

FIGS. 4 to 6 show a first embodiment of the mandrel run-out preventing means 28. FIG. The mandrel shake preventing means 28 is provided on at least one of the upstream side and the downstream side of the tape wrapping mechanism TR with respect to the machine frame 31 of the tape wrapping unit 4. The mandrel runout preventing means 28 may be provided on both the upstream side and the downstream side of the tape wrapping mechanism TR. The mandrel anti-vibration means 28 according to this embodiment is constituted by an anti-vibration roller opening / closing operation cam 32 for moving the pair of right and left anti-vibration rollers 29 and 30 toward and away from each other.

The mandrel run-out preventing means 28 is shown in FIG.
~ As shown in Fig. 6, with respect to the base frames 6, 6,
The running roller 7, the mandrel erection frame 8, the end frame 10, the mandrel chuck 12, and the anti-vibration roller opening / closing operation cam 32 are configured to integrally move back and forth.

The mandrel runout preventing means 28 includes a cam follower 33 that follows the approach / remove operation cam 32. An engagement pin 34 is provided at an output end 33 a of the cam follower 33. On the other hand, a plate member 35 is integrally attached to the machine frame 31 of the tape wrapping unit 4. The plate member 3
The opening and closing arm 3 is connected to one surface 35a of the
7 is rotatably mounted.

An elongated hole 38 is provided at one end 37a of the opening / closing arm 37, and an elongated groove 39 is provided at the other end 37b. An engagement pin 34 provided at an output end 33a of the cam follower 33 is movably engaged with a long hole 38 provided at one end 37a of the opening / closing arm 37. At 37a, a tension spring 40 is stretched between the plate spring 35 and the plate member 35.

On the other hand, the other surface 3 of the plate member 35
5b is provided with a guide rail 41, and the pair of right and left anti-vibration rollers 29, 30 are assembled to the guide rail 41 via slider members 42, 42 so as to be able to move close to and away from the guide rail 41. . The slider members 42, 42 are linked by a connecting pivot member 44 via link links 43, 43.

The plate member 35 has a long groove 45 extending in the vertical direction, and the connecting pivot member 44 is provided in the long groove 45.
Are engaged so as to be able to move up and down. Further, the connecting pivot member 44 is also engaged with a long groove 39 provided at the other end 37b of the opening / closing arm 37.

The mandrel runout preventing means 28 having the above-described structure operates as follows. First, when the mandrel supporting means 2 is in a state position indicated by a solid line in FIG. 1, that is, at a stage where the tape T is started to be wound around the mandrel M by the tape wrapping mechanism TR, the mandrel chuck 12 is moved to the mandrel deflection preventing means 28. , And faces the tape wrapping mechanism TR. In this case, a pair of right and left anti-vibration rollers 29 and 30 in the mandrel vibration prevention means 28 are arranged as shown in FIGS. 5 and 6 so that the mandrel chuck 12 can pass through the mandrel vibration prevention means 28. You are far away.

When the mandrel support means 2 is moved in the direction of arrow X in FIG. 1 by the mandrel transfer means 3 and the mandrel chuck 12 passes through the mandrel deflection preventing means 28, the mandrel support means 2 is integrated with the mandrel support means 2. Anti-sway roller opening / closing operation cam 32
Accordingly, the cam follower 33, the opening / closing arm 37, the link 4
3 and 43, the pair of right and left anti-vibration rollers 29 and 30 can be moved in directions facing each other via the slider members 42 and 42, and the mandrel can be moved by the pair of right and left anti-vibration rollers 29 and 30. M is prevented from swinging.

Next, the mandrel run-out preventing means 28
The second embodiment will be described with reference to FIG.
The mandrel shake preventing means 28 is provided on the downstream side of the tape wrapping mechanism TR with respect to the machine frame 31 of the tape wrapping unit 4. The mandrel anti-vibration means 28 according to this embodiment is constituted by an air cylinder mechanism 46 for moving the pair of anti-vibration rollers 29, 30 to the right and left. Other configurations and operation modes of the mandrel vibration preventing means 28 according to the second embodiment are the same as those of the mandrel vibration preventing means according to the first embodiment described above.

[0034]

The wrapping apparatus of the present invention having the above-described structure is a dedicated tape wrapping machine, which enables tape wrapping of various mandrels, and works very effectively in that respect. It can be said.

Further, in the wrapping apparatus according to the present invention, the tape wrapping unit is configured to be fixed, and the mandrel M is transferred by the mandrel transfer means via the mandrel support means in the tape wrapping mechanism of the fixed tape wrapping unit. In the transfer process, the tape T is wound around the mandrel M, so that regular and accurate tape winding is possible, and it can be said that the tape works extremely effectively in that respect.

Further, in the wrapping apparatus according to the present invention, the mandrel vibration preventing means including a pair of right and left vibration preventing rollers is provided downstream of the tape wrapping mechanism in the fixed type tape wrapping unit. Can prevent the mandrel M from swaying when wrapping the mandrel M, and also in this regard, regular and accurate tape wrapping is possible.

Further, the wrapping device according to the present invention is constructed by incorporating a vertical wrinkle preventing means into the tape wrapping mechanism of the fixed type tape wrapping unit, so that the vertical wrapping of the tape T during wrapping can be prevented. The occurrence can be prevented as much as possible, and also in this respect, regular and accurate tape wrapping is possible.

Further, since the wrapping device is a fixed tape wrapping device based on a method of wrapping without rotating the mandrel itself, the fibers formed on the mandrel do not deviate from the mandrel due to centrifugal force.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing an overall configuration of a specific embodiment of a wrapping device according to the present invention.

FIG. 2 is a schematic front view for explaining the structure of a fixed lapping unit in the lapping device.

FIG. 3 is a schematic side view seen from the direction of arrow A in FIG. 2;

FIG. 4 is a schematic side view showing a specific configuration example in which a mandrel deflection preventing means is incorporated in a fixed lapping unit in the lapping device shown in FIG. 1;

FIG. 5 is a first view of a mandrel deflection preventing means for preventing the deflection of the mandrel in the wrapping device.
It is a side view which shows the specific Example of.

FIG. 6 is a schematic perspective view of a mandrel deflection preventing means according to the first embodiment shown in FIG.

FIG. 7 is a schematic perspective view showing a second specific embodiment of the mandrel shake preventing means.

FIG. 8 is a schematic side view showing a specific example of a conventional apparatus for manufacturing a pipe product by a braiding and lapping process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wrapping apparatus 2 Mandrel support means M Mandrel T tape 3 Mandrel transfer means 4 Tape wrapping unit TR Tape wrapping mechanism 5 Machine base 6 Base frame 7 Running roller 8 Mandrel installation frame 9 First end frame 10 Second end frame 11 Mandrel Supporting jig 12 Mandrel chuck 15 Conveyor 26 Wrinkle prevention means 27 Wrinkle prevention guide 28 Mandrel runout prevention means 29, 30 A pair of right and left runout prevention rollers 46 Air cylinder mechanism

Claims (3)

[Claims] 1. Supporting both longitudinal ends of a mandrel,
A mandrel transfer means for moving the mandrel in the axial direction is provided, and a tape wrapping unit for winding a tape on a composition layer of the mandrel is fixedly arranged at a fixed position with respect to the transfer means during transfer of the mandrel. A wrapping device, comprising: 2. The method according to claim 1, wherein the tape wrapping unit includes a tape wrapping mechanism, and at least one of an upstream side and a downstream side of the tape wrapping mechanism is provided with a mandrel runout prevention unit for preventing a mandrel runout. The wrapping device according to claim 1, wherein 3. The tape wrapping unit according to claim 1, wherein the tape wrapping unit includes a tape wrapping mechanism, and the tape wrapping mechanism is provided with a wrinkle preventing unit for preventing vertical wrinkling of the tape. Wrapping equipment.