JP2021011075A - Strip-like member conveying device - Google Patents

Abstract

To provide a strip-like member conveying device capable of increasing flexibility in layout.SOLUTION: A conveying device 12 for conveying a strip-like member W from a storage device 11 for storing the strip-like member W to an attaching device 35 for attaching the strip-like member W to a forming drum 34 includes: a conveying unit 12A having a conveying belt to which the strip-like member W is attached, and conveying the strip-like member W linearly from the storage device 11 in a plan view; and a guiding portion 12B having a turn roller 28 having an axis perpendicular to or inclined with respect to the horizontal direction, and changing the direction of the strip-like member W removed from the conveying belt by the turn roller 28 and guides the strip-like member W to the attaching device 35.SELECTED DRAWING: Figure 1

Description

The present invention relates to a transport device used for transporting a strip-shaped member that is a component of a pneumatic tire.

Pneumatic tires are manufactured by vulcanizing raw tires formed by laminating various strip-shaped members such as inner liners, carcass plies, belts, treads, and sidewalls. The strip-shaped member is pulled out from a reel or the like and is conveyed to a forming drum for forming a raw tire by a conveying device. The strip-shaped member conveyed to the molding drum is attached to the outer peripheral surface of the forming drum by an attaching device such as an applicator (see, for example, Patent Document 1).

JP 2015-71262

A transport device for transporting a strip-shaped member is usually configured by winding a transport belt around a plurality of rollers having a horizontal axis, and linearly transports the strip-shaped member. Therefore, a long transfer space is required from the reel to the forming drum, and the layout of the transfer device in the manufacturing factory is greatly restricted.

An object of the present invention is to provide a transport device for strip-shaped members capable of increasing the degree of freedom in layout.

(1) The band-shaped member transport device according to the present invention is
A transport device for transporting the strip-shaped member from a storage device for storing the strip-shaped member to a sticking device for attaching the strip-shaped member to a molding drum.
A transport unit having a transport belt to which the strip-shaped member is attached and transporting the strip-shaped member linearly from the storage device in a plan view.
A guide portion having a turn roller having an axial center perpendicular to or inclined with respect to the horizontal direction, and changing the direction of the strip-shaped member removed from the transport belt by the turn roller in a plan view and guiding the strip-shaped member to the sticking device. And have.

According to the transport device having the above configuration, the guide portion having the turn roller changes the direction of the strip-shaped member removed from the transport belt of the transport unit and guides the strip-shaped member to the sticking device, thereby increasing the degree of freedom in the layout of the transport device. Can be done.

(2) Preferably, the guiding portion changes the direction of the strip-shaped member by 90 degrees or more with respect to the transporting direction of the strip-shaped member by the transporting portion.
With such a configuration, it is possible to transport the strip-shaped member over a long distance in a limited area.

(3) Preferably, the guiding portion is a support roller that supports the strip-shaped member between the transport portion and the turn roller and has a rotation axis that is perpendicular or inclined with respect to the horizontal direction, and the support roller with respect to the horizontal direction. It has an angle adjusting mechanism for adjusting the angle of the rotation axis of the support roller.
According to this configuration, the band-shaped member can be guided to the turn roller by changing the direction of the band-shaped member while supporting the band-shaped member by the support roller. By adjusting the angle of the support roller by the angle adjusting mechanism, the direction of the strip-shaped member can be appropriately changed according to the position of the turn roller.

(4) Preferably, the transport device is provided with a crimping device for crimping the strip-shaped member to the transport belt at the starting end of the transport portion.
By crimping the strip-shaped member to the transport belt, the strip-shaped member can be reliably attached to the transport belt, and it is possible to prevent the strip-shaped member from coming off from the transport belt during transport.

(5) Preferably, a plurality of sub-rollers having a rotation axis parallel to the direction orthogonal to the rotation axis of the turn roller are provided on the outer peripheral surface of the turn roller in the circumferential direction and the axis direction of the turn roller. Has been done.
With such a configuration, the strip-shaped member received from the end of the transport portion can be arranged at an appropriate position in the axial direction of the turn roller, and the strip-shaped member can be smoothly delivered from the end of the transport portion to the turn roller. ..

(6) Preferably, the storage device is configured to be movable.
With such a configuration, it is possible to move the storage device and perform the work appropriately at the time of maintenance of the equipment.

According to the present invention, the degree of freedom in the layout of the transport device can be increased.

It is a schematic plan view of the raw tire manufacturing apparatus provided with the transport apparatus which concerns on one Embodiment of this invention. It is a schematic side view which shows the storage device of a strip-shaped member. It is a schematic side view which shows the transport device of a strip-shaped member. (A) is a side view of the pressing roller, and (b) is an explanatory view showing the inside of the pressing roller. It is a side view of a support roller. (A) is a side view of the turn roller, and (b) is a plan view of the turn roller. It is a schematic side view which shows the molding apparatus of a strip-shaped member.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic plan view of a raw tire manufacturing apparatus including the conveying apparatus according to the embodiment of the present invention.
The manufacturing apparatus 10 shown in FIG. 1 conveys a strip-shaped member W constituting a pneumatic tire, for example, a strip-shaped member W made of unvulcanized rubber such as a breaker cushion, a sidewall, and a tread, from a storage device 11 to a molding device 13. It is conveyed by the device 12 and the raw tire or the component parts of the raw tire are molded by the molding device 13. As shown in FIG. 1, in the manufacturing factory, a storage area A1 in which the storage device 11 is arranged, a molding area A3 in which the molding device 13 is arranged, and a transfer device 12 are arranged according to the installation area of the manufacturing device 10. Each of the conveyed transport areas A2 is laid out.

In the example shown in FIG. 1, the storage area A1 and the molding area A3 are arranged side by side, and the transport area A2 is arranged adjacent to the storage area A1 and the molding area A3. In the transport region A2, the strip-shaped member W is oriented about 180 degrees between the storage region A1 and the molding region A3.

FIG. 2 is a schematic side view showing the storage device 11 of the strip-shaped member W.
The storage device 11 has a reel 15 for winding the strip-shaped member W and a support 16 for supporting the reel 15. The reel 15 is rotatably supported by a support base 16. Further, as shown in FIG. 1, in the present embodiment, the strip-shaped members W are wound in two rows with respect to one reel 15. Wheels 16a are attached to the lower surface of the support base 16, and handles 16b are provided on the side portions of the support base 16. The operator can easily move the storage device 11 by holding the handle 16b in his hand and pushing and pulling the support base 16.

The storage area A1 is provided with a pull-out roller 17 that pulls out the strip-shaped member W from the reel 15 of the storage device 11. The drawer roller 17 is rotationally driven by a motor (not shown). Further, the storage area A1 is provided with a recovery device 18 for recovering the adhesive-preventing film material F inserted between the strip-shaped members W overlapping in the radial direction in the reel 15. The recovery device 18 includes a take-up reel 18a for winding the film material F, and a guide roller 18b for guiding the film material F to the take-up reel 18a.

The strip-shaped member W drawn out from the reel 15 is delivered to the roller 21 of the transport device 12 arranged in the transport region A2. A festival 19 in a state in which the strip-shaped member W is loosened downward is provided between the pull-out roller 17 and the roller 21 of the transport device 12. The festoon 19 can absorb the speed difference between the pulling speed of the strip-shaped member W from the reel 15 and the carrying speed of the carrying device 12.

FIG. 3 is a schematic side view showing the transport device 12 of the strip-shaped member W.
As shown in FIGS. 1 and 3, in the present embodiment, the two rows of strip-shaped members W drawn out from the reel 15 are conveyed by the two rows of conveying devices 12. Each transfer device 12 has a transfer unit 12A and an induction unit 12B. The transport unit 12A is arranged in the first transport region A2a shown in FIG. 1, and the guide unit 12B is arranged in the second transport region A2b.

The transport unit 12A linearly transports the strip-shaped member W in the first direction α1 orthogonal to the rotation axis O1 of the reel 15 in a plan view. The transport unit 12A includes a plurality of rollers 21 and a transport belt 22. Note that only the rollers are shown in FIG. 1, and the transport belt 22 is not shown. Further, in FIG. 3, the conveyor belt 22 wound around the roller 21 is shown by a chain double-dashed line, and the strip-shaped member W is shown by a solid line.

The plurality of rollers 21 have horizontal rotation axes and are arranged parallel to each other.
The transport belt 22 is formed in an endless band shape and is wound around a plurality of rollers 21. The transport belt 22 is circulated and circulated over a plurality of rollers 21 by a driving device (not shown) such as a motor. The transport belt 22 transports the band-shaped member W attached to itself. The portion of the transport belt 22 that transports the strip-shaped member W forms the transport path R1. Further, the portion of the transport belt 22 other than the transport path R1 forms the return path R2. In FIGS. 1 and 3, the start end portion of the transport path R1 is indicated by RS, and the end portion is indicated by RE.

The strip-shaped member W drawn out from the reel 15 is received by the transport belt 22 at the position of the roller 21A arranged at the start end portion RS of the transport path R1. This roller 21A is also particularly referred to as a "starting roller 21A".

The transport region A2 is provided with a crimping device 24 corresponding to the start end roller 21A of the transport path R1. The crimping device 24 presses and attaches (crimps) the band-shaped member W to the surface of the transport belt 22. The crimping device 24 has a pressing roller 25 arranged above the starting roller 21A. Of the surface of the transport belt 22, the surface supported by the band-shaped member W being attached is also referred to as a "support surface".

FIG. 4A is a side view of the pressing roller 25, and FIG. 4B is an explanatory view showing the inside of the pressing roller 25.
The pressing roller 25 has a plurality of dividing rollers 26 divided in the axial direction. Each split roller 26 has an outer ring member 26a, an inner ring member 26b, and a connecting member 26c. The split roller 26 is made of a synthetic resin material. As the synthetic resin material, for example, MC nylon (registered trademark of Quadrant Polypenco Japan Co., Ltd.), 6 nylon, PTFE (polytetrafluoroethylene) and the like can be adopted. In this embodiment, 6 nylon having flexibility and impact resistance is adopted. The split roller 26 is not limited to such a synthetic resin material, and may be formed of, for example, a metal or the like. The inner ring member 26b, the outer ring member 26a, and the connecting member 26c may be made of different materials.

The outer ring member 26a is a portion that contacts and presses against the band-shaped member W. The inner ring member 26b is rotatably attached to the rotating shaft 27 via a bearing 27a. The outer ring member 26a and the inner ring member 26b are arranged concentrically.

The connecting member 26c connects the outer ring member 26a and the inner ring member 26b. The connecting member 26c extends spirally between the outer ring member 26a and the inner ring member 26b, and elastically connects the outer ring member 26a and the inner ring member 26b. The outer ring member 26a, the inner ring member 26b, and the connecting member 26c are integrally molded of a synthetic resin material. When a radial load is applied to the outer ring member 26a, the connecting member 26c elastically deforms to allow the outer ring member 26a and the inner ring member 26b to move relative to each other in the radial direction. Then, when the load is released, the connecting member 26c elastically returns to return the outer ring member 26a and the inner ring member 26b to a concentric state.

The pressing roller 25 presses the strip-shaped member W at the start end portion RS of the transport path R1 and attaches the strip-shaped member W to the upper surface of the transport belt 22. Since the pressing roller 25 has a plurality of dividing rollers 26 and the outer ring member 26a of each dividing roller 26 can be individually moved in the radial direction, each outer ring member 26a is radially moved so as to follow the shape of the strip-shaped member W. Can be moved to. As a result, the strip-shaped member W can be attached to the transport belt 22 by pressing the entire width of the strip-shaped member W substantially evenly. A plurality of pressing rollers 25 may be provided in the circumferential direction of the starting roller 21A, and in this case, one or a plurality of pressing rollers 25 may be selected and used.

As shown in FIGS. 1 and 3, the guide portion 12B has a support roller 23 and a turn roller 28. In the present embodiment, the support roller 23 is located on the front side of the transport direction (first direction) α1 of the strip-shaped member W in the transport portion 12A (indicated by reference numeral 23A), and from this position to the transport direction α1 in a plan view. It is provided at two locations (indicated by reference numeral 23B) at positions separated from α2 in the orthogonal direction (second direction). The turn roller 28 is provided at a position further separated from the other support roller 23B in the α2 direction. The support roller 23 has a rotation axis inclined with respect to the horizontal direction. The turn roller 28 has a rotation axis perpendicular to the horizontal direction.

The strip-shaped member W is removed from the transport belt 22 at the terminal RE of the transport path R1 and delivered to one of the support rollers 23A. The strip-shaped member W is supported from below by one of the support rollers 23A, and its direction is changed from the first direction α1 to the second direction α2. Since the support roller 23A has a rotation axis inclined with respect to the horizontal direction, the direction of the strip-shaped member W can be smoothly changed. Then, the strip-shaped member W is delivered to the other support roller 23B, and is also supported from below by the support roller 23B.

The other support roller 23B also has a rotation axis inclined with respect to the horizontal direction like the one support roller 23A. Therefore, the band-shaped member W is slightly changed in direction by the other support roller 23B toward the third direction α3 (the direction opposite to the first direction α1) orthogonal to the second direction α2, and the turn roller described later. Guided to 28.
The strip-shaped member W is bridged between one support roller 23A and the other support roller 23B in a loose state. As a result, twisting of the band-shaped member W due to the change of direction is allowed, and the band-shaped member W can be guided in a desired direction.

FIG. 5 is a side view of the support roller 23.
The support roller 23 is attached to the device frame 12a of the transfer device 12 via the angle adjusting mechanism 40. The angle adjusting mechanism 40 includes first and second connecting shafts 41 and 43, and first and second support members 42 and 44.

The first connecting shaft 41 has an axial center in the vertical direction, and its lower end is fixed to the device frame 12a. The first support member 42 is rotatably attached to the upper end of the first connecting shaft 41. The first support member 42 is fixed to the first connecting shaft 41 at a desired rotation position by a positioning bolt or the like (not shown).

The second connecting shaft 43 has a horizontal axis, and one end thereof is attached to the first support member 42. The second support member 44 is rotatably attached to the other end of the second connecting shaft 43. The second support member 44 supports the rotation shaft of the support roller 23. The second support member 44 is fixed to the second connecting shaft 43 at a desired rotation position by a positioning bolt or the like (not shown).

The angle adjusting mechanism 40 adjusts the rotation position of the first support member 42 around the first connecting shaft 41 and the rotation position of the second support member 44 around the second connecting shaft 43, whereby the support roller 23 The inclination angle of the rotation axis of the above can be adjusted as desired. Then, by appropriately adjusting the inclination angle of the rotation axis of the support roller 23, the strip-shaped member W can be guided from the transport portion 12A to the turn roller 28 without giving an excessive load to the strip-shaped member W.
The specific configuration of the angle adjusting mechanism 40 is not limited to this, and various configurations can be adopted.

As shown in FIG. 1, the turn roller 28 has an axial center perpendicular to the horizontal direction, and the strip-shaped member W is delivered from the other support roller 23B. The band-shaped member W is turned in the third direction α3 by the turn roller 28 and is conveyed to the sticking device 35 of the molding device 13.

FIG. 6A is a side view of the turn roller 28, and FIG. 6B is a plan view of the turn roller 28.
The turn roller 28 includes a dividing roller 29 divided in the axial direction. Each split roller 29 can rotate individually around the rotation axis. A plurality of sub-rollers 30 are rotatably provided on the outer peripheral surface of each split roller 29. The plurality of auxiliary rollers 30 are arranged at equal intervals in the circumferential direction of the split roller 29. Each sub-roller 30 has a rotation axis O3 parallel to the direction orthogonal to the rotation axis O2 of the turn roller 28.

By using such a turn roller 28, the strip-shaped member W can move in the axial direction on the turn roller 28, and the strip-shaped member W delivered from the transport belt 22 comes into contact with the turn roller 28 to resist in the axial direction. The strip-shaped member W can be smoothly conveyed toward the molding apparatus 13 without being affected.

FIG. 7 is a schematic side view showing the molding apparatus 13 of the strip-shaped member W.
The molding apparatus 13 includes a forming drum 34 for forming a raw tire and a sticking device 35 for attaching a strip-shaped member W to the forming drum 34. The forming drum 34 is formed in a cylindrical shape and is rotationally driven around a horizontal axis. In the present embodiment, the breaker cushion is wound around the forming drum 34 as the strip-shaped member W conveyed in two rows. Further, in addition to the breaker cushion, a breaker, a tread, and the like forming a raw tire are wound around the molded drum 34.

The sticking device 35 has a main belt 36 and a pressing roller 38. The main belt 36 is configured by winding an endless belt 36b around a pair of rollers 36a. The strip-shaped member W on the main belt 36 is supplied toward the outer peripheral surface of the forming drum 34.

The pressing roller 38 is arranged in the vicinity of the outer peripheral surface of the forming drum 34, and presses the band-shaped member W supplied from the main belt 36 against the forming drum 34 or the outer peripheral surface of another band-shaped member wound around the forming drum 34 to form a band. Attach the member W.

(Action and effect of the embodiment)
The transport device 12 of the present embodiment transports the strip-shaped member W from the storage device 11 that stores the strip-shaped member W to the sticking device 35 that attaches the strip-shaped member W to the molding drum 34. The transport device 12 has a transport belt 22 to which the band-shaped member W is attached, and horizontally with a transport unit 12A that transports the strip-shaped member W linearly from the storage device 11 to the first direction α1 in a plan view. A guide portion 12B having a turn roller 28 having a vertical or inclined axial center, and changing the direction of the strip-shaped member W removed from the transport belt 22 by the turn roller 28 in a plan view and guiding the strip member W to the sticking device 35. And have. Therefore, the layout is not limited to arranging the storage area A1, the transfer area A2, and the molding area A3 in a straight line, and the transfer device has a layout in which the transfer path of the strip-shaped member W is bent according to the site in the manufacturing factory. 12 can be installed, and the degree of freedom in layout of the transport device 12 can be increased.

In the transport device 12 of the above embodiment, the guide unit 12B changes the direction of the strip member W by 90 degrees or more with respect to the transport direction α1 of the strip member W by the transport unit 12A. Therefore, the strip-shaped member W can be transported over a long distance in a limited area.

In the transport device 12 of the above embodiment, the guide portion 12B has a support roller 23 that supports the strip-shaped member W between the transport portion 12A and the turn roller 28 and has a rotation axis that is perpendicular or inclined with respect to the horizontal direction. The angle adjusting mechanism 40 for adjusting the angle of the rotation axis of the support roller 23 with respect to the horizontal direction is provided. Therefore, the band-shaped member W can be guided to the turn roller 28 by changing the direction of the band-shaped member W while supporting the band-shaped member W by the support roller 23. By adjusting the angle of the support roller 23 by the angle adjusting mechanism 40, the direction of the strip-shaped member W can be appropriately changed according to the position of the turn roller 28.

The transport device 12 of the above embodiment includes a crimping device 24 that crimps the strip-shaped member W to the transport belt 22 at the start end portion RS of the transport unit 12A. Therefore, the strip-shaped member W can be reliably attached to the transport belt 22, and the strip-shaped member W can be prevented from coming off from the transport belt 22 during transport.

In the transport device 12 of the above embodiment, the auxiliary roller 30 having the rotation axis O3 parallel to the direction orthogonal to the rotation axis O2 of the turn roller 28 on the outer peripheral surface of the turn roller 28 is in the circumferential direction of the turn roller 28. And a plurality of them are provided in the axial direction. Therefore, the strip-shaped member W delivered from the other support roller 23B to the turn roller 28 can be arranged at an appropriate position in the axial direction of the turn roller 28.

In the above embodiment, the storage device 11 of the strip-shaped member W is configured to be movable. Therefore, the storage device 11 can be moved to perform the work appropriately at the time of maintenance of the equipment or the like.

The present invention is not limited to the above embodiment, and can be appropriately modified within the scope of the invention described in the claims.
For example, the strip-shaped member W may be a ribbon-shaped rubber strip used in the strip wind method. In this case, a sticking drum for molding a tread, a sidewall, or the like by spirally sticking a rubber strip is adopted as the molding apparatus.
In the above embodiment, the guide portion 12B of the transport device 12 is provided with two support rollers 23, but one or more support rollers 23 may be provided.
In the above embodiment, the support roller 23 is inclined with respect to the horizontal direction, but it may be provided vertically. In the above embodiment, the turn roller 28 is provided perpendicular to the horizontal direction, but it may be inclined.

12: Conveying device 22: Conveying belt 23: Support roller 24: Crimping device 28: Turn roller 30: Sub-roller 35: Attaching device 40: Angle adjusting mechanism R1: Conveying path W: Band-shaped member

Claims (6)

A transport device for transporting the strip-shaped member from a storage device for storing the strip-shaped member to a sticking device for attaching the strip-shaped member to a molding drum.
A transport unit having a transport belt to which the strip-shaped member is attached and transporting the strip-shaped member linearly from the storage device in a plan view.
A guide portion having a turn roller having an axial center perpendicular to or inclined with respect to the horizontal direction, and changing the direction of the strip-shaped member removed from the transport belt by the turn roller in a plan view and guiding the strip member to the affixing device. And, a belt-shaped member transporting device. The transport device for a strip-shaped member according to claim 1, wherein the guide portion changes the direction of the strip-shaped member by 90 degrees or more with respect to the transport direction of the strip-shaped member by the transport portion. The guide portion includes a support roller that supports the strip-shaped member between the transport portion and the turn roller and has a rotation axis that is perpendicular or inclined with respect to the horizontal direction, and a rotation shaft of the support roller with respect to the horizontal direction. The band-shaped member conveying device according to any one of claims 1 or 2, further comprising an angle adjusting mechanism for adjusting the angle of the heart. The transport device for a strip-shaped member according to any one of claims 1 to 3, further comprising a crimping device for crimping the strip-shaped member to the transport belt at the starting end of the transport portion. The claim that a plurality of sub-rollers having a rotation axis parallel to the direction orthogonal to the rotation axis of the turn roller are provided on the outer peripheral surface of the turn roller in the circumferential direction and the axis direction of the turn roller. The transport device for strip-shaped members according to any one of 1 to 4. The band-shaped member transport device according to any one of claims 1 to 5, wherein the storage device is configured to be movable.

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