JPH058321A - Apparatus for manufacturing narrow sheet - Google Patents

Abstract

PURPOSE:To form a narrow sheet material without cutting off cords inserted in a wide sheet material, and spirally wind up a narrow sheet material at high speed. CONSTITUTION:A wide sheet 1 of being wound spirally is wound back by means of a winding back device 2, and the wound back wide sheet 1 is torn into a predetermined width and a plurality of narrow sheets 3, and the predetermined width-torn narrow sheets 3 are wound up by means of winding up devices 5, however, previous to the winding up, the narrow sheets 3 are made to travel reciprocally to the winding axial direction by guide means 6, so as to thereby be wound up spirally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a narrow sheet member such as a rubber sheet containing a thread, a nylon band or the like, which is a constituent member of a tire.

[0002]

2. Description of the Related Art An apparatus for slitting a wide rubber sheet with a cord prepared in advance into a plurality of narrow sheets having a predetermined width and winding the narrow sheet is disclosed in, for example, Japanese Unexamined Patent Publication
The thing described in 1-209251 is known. The conventional device is a slitter for cutting a wide strip-shaped member into a plurality of narrow members, a plurality of receiving rollers for guiding the plurality of narrow narrow members, and a narrow member guided by the receiving rollers. And a drive means for driving the winding member of the winding means with a torque motor.

[0003]

SUMMARY OF THE INVENTION The conventional apparatus described above is used for forming a wide sheet member into a predetermined narrow sheet member.
Since a cutter was used, there was a risk of cutting the cord contained in the sheet member. When the cord is cut, there is a problem that the strength of the narrow sheet member is reduced and the quality of the tire molded using the same is reduced.

Further, the winding means for spirally winding the narrow sheet member around the winding member reciprocates the winding member in its axial direction. That is, the winding member is provided in the traverse unit, the traverse unit is provided with a female screw member that is rotatable in the forward and reverse directions, and a fixed screw rod that is screwed into the female screw member is provided. Therefore, in the conventional winding means, the mass of the part that reciprocates increases, and the mass changes with an increase in the winding diameter, so that high-speed reciprocating movement becomes difficult and high-speed spiral winding can be performed. In addition, there is a problem that it is a winding line, which has a complicated structure and a large occupied space.

Therefore, according to the present invention, the narrow sheet member can be formed into a narrow sheet member without cutting the cord put in the wide sheet member, and the narrow sheet member can be wound into a spiral shape at a high speed. It is an object of the present invention to provide an apparatus for manufacturing a narrow sheet member that can be manufactured, has a relatively simple structure, and occupies a small space.

[0006]

In order to achieve the above object, the present invention has taken the following means. That is, the feature of the apparatus for manufacturing a narrow sheet member of the present invention, a rewinding device for rewinding the wide sheet member wound in a roll shape, a wide sheet member rewound by the rewinding device, A tearing device that tears into a narrow sheet member having a predetermined width, a winding device that winds up the narrow sheet member torn by the tearing device, and a narrow sheet member before being wound by the winding device, And a guide device that reciprocates in the direction of the axis of take-up.

Further, the feature of the tearing device of the present invention is that a pair of the first and second sheet members arranged along the advancing direction of the wide sheet member advancing in the longitudinal direction are in contact with the lower surface of the wide sheet member. A narrow sheet member having first and second guide rollers and a drive roller disposed below the guide rollers, and being torn to a predetermined width from the wide sheet member is the first and second guide rollers. The narrow sheet member is continuously torn from the wide sheet member by being wound around the drive roller and pulled by passing through the space.

Further, the guide device of the present invention is characterized in that a slide frame that reciprocates in the winding axis direction of the wide sheet member and an axis center of the slide frame in a direction orthogonal to the reciprocating direction. A pair of upper guide rollers that sandwich the narrow sheet member from both sides thereof, and a lower guide roller that is arranged on the downstream side of the guide rollers and that has an axis parallel to the reciprocating direction. The narrow sheet member is guided from the upper guide roller through the lower guide roller to the winding shaft and wound up.

[0009]

According to the present invention, the wide sheet member wound into a roll is rewound by the rewinding device. The unfolded wide sheet member is torn into a plurality of narrow sheet members having a predetermined width by a tearing device. At this time, the sheet member is not cut into a predetermined width by a cutter or the like, but is torn, so that the cord embedded in the sheet member is not cut.

The narrow sheet member torn to a predetermined width is wound up by the winding device. Prior to this winding, the narrow sheet member reciprocates in the winding axis direction by the guide device. Because it is made, it is wound in a spiral shape. This spiral winding does not move the winding device back and forth,
Since the sheet member entering the winding device is moved back and forth, the mass of the member to be moved back and forth is constant and small regardless of the change in the winding diameter, and high-speed winding is possible.

Further, the tearing action of the tearing device will be described in detail. While the wide sheet member progresses from the first guide roller to the second guide roller provided upstream thereof,
Since the driving roller provided on the lower side pulls the sheet member separated from the side edge side of the wide sheet member, the narrow sheet member is automatically torn from the wide sheet member. Further, to describe in detail the guiding action of the guide device to the winding device, the torn narrow sheet member is provided in a direction orthogonal to the reciprocating direction of the slide frame and is sandwiched by a pair of upper guide rollers. Therefore, the narrow sheet member completely follows the reciprocating movement of the frame.
Further, the narrow sheet member is guided to the winding member by the lower guide roller arranged on the downstream side of the slide frame and in the direction parallel to the reciprocating direction, and in the winding device, the narrow sheet member is accurately placed on the winding shaft. It is possible to wind the narrow sheet member at a different spiral pitch.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the overall configuration of the narrow sheet member manufacturing apparatus of the present invention. This device forms a wide rubber sheet member containing a thread into a plurality of narrow sheet members and winds the molded sheet member.

As shown in FIG. 1, the narrow sheet member manufacturing apparatus includes a rewinding device 2 for rewinding a wide sheet member 1 wound in a roll shape, and a wide rewinding device 2 for rewinding the wide sheet member 1. A tearing device (4) for tearing the sheet member (1) into a narrow sheet member (3) having a predetermined width, a winding device (5) for winding the narrow sheet member (3) torn by the tearing device (4), and a winding device (5). The narrow sheet member (3) before being taken is provided with a guide device (6) for reciprocating in the winding axis direction.

As shown in FIG. 2, the rewinding device 2 has a rewinding shaft 7 which rotatably and rotatably supports the roll-shaped wide sheet member 1. A predetermined rotation resistance is applied to the rewind shaft 7 by a brake device (not shown). The wide sheet member 1 may be wound on the liner 8 in a roll shape or may be wound by the same sheet member alone. Here, the former will be assumed. In this wide sheet member 1, cords are embedded in parallel at a predetermined interval in the width direction.

Of the roll-shaped wide sheet member 1 and the liner 8 hung on the rewinding shaft 7, the liner 8 passes between a pair of pulling rollers 9 and then is wound up by the liner winding shaft 10. The pair of pulling rollers 9 are driven by a drive motor 11 at a constant rotation. The pair of pulling rollers 9 are in close contact with each other at a predetermined pressure, and the liner 8 sandwiched therebetween is pulled at a constant speed in consideration of the extension of the liner.

Therefore, the roll body composed of the wide sheet member 1 and the liner 8 pivotally supported by the rewinding shaft 7 rotates because the liner 8 is pulled at a constant speed, and the sheet member is rotated.
1 and liner 8 will be unwound from the roll.
Then, the linear velocity with which the wide sheet member 1 and the liner 8 are drawn out becomes constant at a predetermined ratio regardless of the change in the outer diameter of the roll body due to the rewinding. At this time, since the rewinding shaft 7 is provided with a rotation resistance by a brake device (not shown), the liner 8 is pulled with a constant tension and does not sag.

The liner winding shaft 10 is an air motor.
It is driven to rotate by 12. Therefore, the liner 8 delivered from the pulling roller 9 is wound around the winding shaft 10 without sagging. When the wide sheet member 1 is not a polymer with the liner 8 but is a polymer alone, it does not include the liner winding shaft 10 and the like as described above, and is a rewinding device that only performs a rewinding operation. .

On the other hand, the wide sheet member 1 includes the drive roller 15
Is pulled out at a constant linear velocity regardless of the change in the winding diameter, and the wide sheet member 1 is pulled out by the tearing device.
By means of 4, the narrow sheet member 3 having a predetermined width is formed.
In this embodiment, the tearing devices 4 are provided in five sets at predetermined intervals in the horizontal direction, as shown in FIG. Although each tearing device 4 has the same configuration, hereinafter, when it is necessary to distinguish between them, each tearing device 4 arranged from the upstream side to the downstream side in the moving direction of the wide sheet member is divided into the first to the first. 5 Tear device 4

As shown in FIGS. 2 and 3, each tearing device
4 has a pair of first and second guide rollers 13 and 14,
A drive roller 15 is arranged on the upstream side and the lower side of the first guide roller 13. The driving roller 15 of the first tearing device 4 is interlocked with the pulling roller 9 of the rewinding device 2 via a transmission means 16 such as a chain or a timing belt, and is synchronously driven. Drive roller 15 of the second tear device 4
Are synchronously driven by being interlocked with the drive roller 15 of the first tearing device 4 via a transmission means 17 such as a chain or a timing belt. Similarly, each drive roller 15 of the third to fifth tearing devices 4 is connected to the drive roller 15 and the transmission means 17 on the upstream side.
Are synchronously driven through interlocking connection.

The wide sheet member 1 includes the first guide roller 13
Also, it travels in contact with the upper surface of the second guide roller 14. Then, in the first tearing device 4, first, part of the wide sheet member 1 having a predetermined width is torn by hand by hand from a side edge side,
It is wound around the drive roller 15 and, via the guide device 6,
Take up on winding device 5 and set. This setting is also performed in the second to fifth tearing devices 4, and when all the settings are completed, the entire device is driven.

As shown in FIG. 4 below, the wide sheet member 1
The sheet having a predetermined width is sequentially torn from the torn side edge side, and each torn narrow sheet member 3 is wound around each drive roller 15 and pulled. In the fifth tearing device 4, the tearing action is not performed, and only the last remaining wide sheet member 1 (however, the narrow sheet member 3 at this position) is pulled by the drive roller 15. Therefore, the second guide roller 14 is not provided, but for convenience, it will be treated as a tearing device.

From the wide sheet member 1 to the narrow sheet member
The tearing of 3 is performed by simply pulling the narrow sheet member 3 with the drive roller 15 without using a cutter or the like. Therefore, it is difficult to maintain the parallelism of the torn narrow sheet member 3 with high accuracy, but since the cords are embedded in parallel in the sheet members 1 and 3, it is impossible to break the parallelism beyond this cord. Absent.

As shown in FIG. 3, the torn narrow sheet member 3 is provided with a vertical guide roller 18 and a horizontal guide roller.
It is guided by 19 and travels downward, and its direction is changed by 90 degrees by a direction-changing lateral guide roller 20 which is arranged below the lateral guide roller 19 so as to have an axis perpendicular to the axis of the lateral guide roller 19. Will be guided to. The narrow sheet member 3 is
In some cases, the liner rewinding device is not required, and in the latter case, the former will be described. In this case, the liner rewinding device 21 is arranged below the drive roller 15,
The liner 22 delivered from the liner rewinding device 21 and the narrow sheet member 3 are overlapped by the lateral guide roller 19 and integrally run downward.

The polymer of the narrow sheet member 3 and the liner 22 passes through the guide device 6 and is wound up by the winding device 5. In this embodiment, the winding device 5 also has five sets of first to fifth winding devices 5 corresponding to the tearing device 4. The winding device 5 has a winding shaft 24 which is rotationally driven by a drive motor 23. Only one drive motor 23 is provided, and the drive motor 23 and the take-up shaft 24 of the second and third take-up devices 5 are interlocked by a transmission means 25 such as a timing belt. The take-up shaft 24 of the second take-up device 5 and the take-up shaft 24 of the first take-up device 5 are interlockingly connected by a transmission means 26 such as a timing belt. Similarly, the fourth winding device
The take-up shaft 24 of 5 is the take-up shaft 24 of the third take-up device 5, and the take-up shaft 24 of the fifth take-up device 5 is the take-up shaft 24 of the fourth take-up device 5 and the conduction of timing belts, respectively. It is interlocked by means 26.

FIG. 5 is a sectional view taken along the line AB in FIG. 1. As shown in FIG. 5, the drive motor 23 is fixed to a machine frame 27 via a bracket 28. Two timing pulleys 29 are fixed to the output shaft of the drive motor 23, and a timing belt 25 for transmitting power to the winding shaft 24 of the second winding device 5 is wound around one pulley 29, and the other. Pulley 29
A timing belt 25 for transmitting power is wound around the winding shaft 24 of the third winding device 5.

The take-up shaft 24 is rotatably supported on the machine frame 27. A slip clutch 30 is coupled to the winding shaft 24, and the clutch 30 and the drive motor 23 are interlocked and coupled by the timing belt 25. Then, the power from the drive motor 23 is transmitted to the winding shaft 24 via the slip clutch 30. This slip clutch 30
A non-contact type such as a powder clutch or a contact type such as an air clutch can be used, and the transmission torque can be adjusted. Further, a timing belt 26 for transmitting power to the slip clutch 30 of the first winding device 5 is wound around the slip clutch 30.

One end of the winding shaft 24 has a machine frame 27
The narrow sheet member 3 and the liner 22 are attached to the winding member 31 so that the winding member 31 is removably fitted onto the protruding portion.
The polymer is wound up. A sensor 32 for detecting the outer diameter of the roll body of the narrow sheet member 3 and the liner 22 wound around the winding member 31 is provided (see FIG. 3).
The sensor 32 and the slip clutch 30 are electrically connected so that the torque of the slip clutch 30 can be adjusted by the change in the diameter of the roll body.

A power take-out timing pulley 33 is fixed to the other end of the take-up shaft 24, and the power of the guide device 6 described below is taken out from the pulley 33. That is,
The guide device 6 is, as shown in FIGS.
It has a speed reducer 34 arranged below the machine frame 27.
As shown in FIG. 6, an input shaft 35 of the speed reducer 34 and a timing pulley 33 fixed to the winding shaft 24 are interlockingly connected by a timing belt 36. A sprocket 38 is fixed to the output shaft 37 of the speed reducer 34.

As shown in FIGS. 7 and 8, a support 39 is attached to the machine frame 27 above the speed reducer 34.
The cam shaft 40 is rotatably supported on the support 39.
The axis of the cam shaft 40 is in the horizontal direction orthogonal to the axis of the winding shaft 24. A sprocket 41 is fixed to one end of the cam shaft 40, and the sprocket 41 and the sprocket 38 of the speed reducer 34 are interlocked and connected by a chain 42. In this embodiment, a grooved cam 44 is fixed to the other end of the cam shaft 40.

A slide guide is provided on the machine frame 27.
45 is fixed, and a slide bar 46 is slidably inserted in the guide 45. The sliding direction of this slide bar 46 is
It is parallel to the winding shaft 24. A cam follower 47 is provided at one end of the slide bar 46.
Are engaged with the groove cam 44. Then, the groove cam 44
The rotation of the slider causes the slide bar 46 to reciprocate.

A slide frame 48 is fixed to the other end of the slide bar 46. A pair of upper guide rollers 49 are provided on the upper end of the slide frame 48.
The upper guide roller 49 is arranged below the direction changing lateral guide roller 20. The upper guide roller 49 and the direction-changing lateral guide roller 20 are arranged in parallel. A lower guide roller 50 having a horizontal axis perpendicular to the axis of the upper guide roller 49 is provided at the lower end of the slide frame 48. That is, the axis of the lower guide roller 50 is parallel to the axis of the winding shaft 24.

The polymer of the narrow sheet member 3 and the liner 22 which hangs downward from the direction-changing lateral guide roller 20 passes through the upper guide roller 49 and the lower guide roller 50 and is fitted onto the winding shaft 24. Guided by the winding member 31. By the rotation of the groove cam 44, the slide bar 46 reciprocates, and the upper and lower guide rollers 49, 50 reciprocate in the axial direction of the take-up shaft 24 accordingly.
The polymer of the narrow sheet member 3 and the liner 22 guided by 0 reciprocates in the winding axis direction, and the narrow sheet member 3 and the liner 22 are spirally wound on the winding member 31. To be

Since the drive motor 11 of the drive roller 15 of the tearing device 4 rotates at a constant speed, and the drive motor 23 of the winding device 5 rotates at a step control speed, the drive motor 23
When the winding diameter of the winding device 5 increases within the step speed switching section of, the winding device is faster than the rewinding speed from the rewinding device 2.
The pulling speed of the narrow sheet member 3 due to 5 becomes faster.
However, this speed difference is absorbed by the slip clutch 30. The slip torque of the slip clutch 30 is adjusted by detecting the change in the winding diameter with the sensor 32, and the tension of the narrow sheet member 3 is substantially constant. The torque adjustment of the slip clutch 30 is performed stepwise or steplessly.

Further, the winding width, the spiral pitch or the winding shape of the spiral winding can be arbitrarily changed by appropriately changing the size and shape of the groove cam 44 or the reduction ratio of the speed reducer 34. The present invention is not limited to the above embodiment. For example, to move the slide bar back and forth,
Instead of using the grooved cam, other driving means may be used.

[0035]

According to the present invention, since the narrow sheet member is formed by tearing, rather than slitting with a cutter or the like, the narrow sheet member can be cut without cutting the cord. It can be formed into a sheet member. Moreover, since the guide device is reciprocally moved to reciprocate in a spiral shape instead of reciprocating the winding device as in the conventional case, the mass of the reciprocating member is reduced. You can wind it up.

The tearing of the narrow sheet member from the wide sheet member can be performed by the simple three rollers of the first and second guide rollers and the driving roller, so that the structure of the entire apparatus is simplified. Therefore, it occupies less space. Further, the torn narrow sheet member,
It is sandwiched by a pair of upper guide rollers provided in a direction orthogonal to the reciprocating direction of the winding device, and is guided to the winding device by a lower guide roller arranged in a direction parallel to the reciprocating direction. Therefore, the narrow sheet member will completely follow the reciprocating movement of the winding device,
It can be wound with an accurate spiral pitch.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an apparatus for manufacturing a narrow sheet member showing an embodiment of the present invention.

FIG. 2 is an enlarged view of a rewinding device portion.

FIG. 3 is an enlarged view of a first winding device portion.

FIG. 4 is a plan view of the sheet member showing a state in which the narrow sheet member is formed from the wide sheet member.

5 is a cross-sectional view taken along the line AB of FIG.

6 is a cross-sectional view taken along the line A-C of FIG.

7 is a cross-sectional view taken along the line D-C of FIG.

8 is a cross-sectional view taken along the line EE of FIG.

[Explanation of symbols]

1 Wide sheet member 2 Rewinding device 3 Narrow sheet members 4 tearing device 5 Winding device 6 Guide device

Claims (3)

[Claims] 1. A rewinding device for rewinding a wide sheet member rolled into a roll, and a tearing device for tearing the wide sheet member rewound by the rewinding device into a narrow sheet member having a predetermined width, A winding device for winding the narrow sheet member torn by the tearing device, and a guide device for reciprocating the narrow sheet member before being wound by the winding device in the winding axis direction. An apparatus for manufacturing a narrow sheet member. 2. A pair of first and second guide rollers arranged along the traveling direction of the wide sheet member advancing in the longitudinal direction and in contact with the lower surface of the wide sheet member, and a pair of the guide rollers. A narrow sheet member having a driving roller disposed below and being torn to a predetermined width from the wide sheet member, and wound around the driving roller through the space between the first and second guide rollers. A tearing device, wherein a narrow sheet member is continuously torn from the wide sheet member by being pulled. 3. A slide frame that reciprocates in the direction of the winding axis of the narrow sheet member, and the narrow sheet member having the axis of the slide frame in a direction orthogonal to the reciprocating direction. A pair of upper guide rollers sandwiching from both sides, and a lower guide roller arranged downstream of the guide rollers and having an axis parallel to the reciprocating direction, wherein the narrow sheet member is the upper guide. A guide device which is guided by a winding shaft from a roller through a lower guide roller and is wound up.