JP3390273B2 - Method and apparatus for feeding strip material - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for supplying a strip-shaped material, and more specifically, to a sheet-shaped strip-shaped material as a tire constituent material, when the strip-shaped material is supplied to a tire forming drum. The present invention relates to a belt-shaped material supply method and apparatus which can be efficiently overlapped and supplied in advance without causing wrinkles and without air accumulation.

[0002]

2. Description of the Related Art Conventionally, in a tire forming process, when a plurality of sheet-shaped strip-shaped materials as tire constituent materials are laminated and pasted on a tire-forming drum, the strip-shaped material is supplied in the unvulcanized state from the supply step. Supply the material one by one,
I was working on the tire building drum.

The method and apparatus for supplying the band-shaped material are, for example, the invention of the applicant of the present invention, Japanese Patent Publication No. 2-61.
As disclosed in Japanese Patent No. 384 (patent registration number 1,638,162, registration date January 31, 1992) and FIG. 8, it is arranged at right angles to the axis of the forming drum 1 for supplying the band-shaped material W to the forming drum 1. In the middle of the pasting conveyor 2 provided, a plurality of sheet-shaped strip-shaped materials W, which are preliminarily molded in a width corresponding to the circumferential length of the molding drum 1, in a direction orthogonal to the pasting conveyor 2,
A plurality of constant length conveyors 4a, 4b equipped with a cutting device 3 for cutting into a length corresponding to the width of the forming drum are connected, and the constant length strip-shaped material W is transferred from the respective constant length conveyors 4a, 4b. It is transferred onto the laminating conveyor 2 via the devices 5a and 5b, and the strip-shaped material W is supplied to the molding drum 1 side at a constant interval L, and the laminating work is performed on the molding drum 1 one by one.

[0004]

However, in the conventional method of supplying the strip-shaped material as described above, a plurality of unvulcanized strip-shaped materials W are supplied one by one as shown in FIG.
Since the laminating work is performed on the forming drum 1, it takes a lot of time and time to wind the strip-shaped material W, resulting in extremely poor work efficiency, and one end of the strip-shaped material W such as an unvulcanized rubber sheet which is easily deformed. Since the paper is held and dragged, it may wrinkle or be deformed during transportation, causing a problem in dimensional stability. Furthermore, when a plurality of strips W are stuck together, air between the strips W should be surely secured. There is a problem in that it is difficult to remove and bond them, and stitching work must be performed to remove air.

The present invention has been devised in view of such conventional problems. It is possible to effectively prevent wrinkles and deformation of the band-shaped material in the step of supplying the band-shaped material, and to make a plurality of band-shaped materials. Since the materials can be surely supplied to the tire building drum in a state of being overlapped, the winding work of the band-shaped material can be performed efficiently, and further, air accumulation is less likely to occur between the band-shaped materials. An object of the present invention is to provide a belt-shaped material supply method and apparatus capable of omitting a stitching operation for removing air between the belt-shaped materials in the winding operation of the belt-shaped materials.

[0006]

In order to achieve the above object, the present invention provides a plurality of sheet-shaped strip-shaped materials formed to have a width corresponding to the peripheral length of a forming drum in a length corresponding to the forming drum width. At least two or more standard length conveyors each having a cutting device for cutting, a bonding conveyor installed in a direction orthogonal to the standard length conveyors, or a bonding conveyor arranged in series with the bonding conveyors, Consists of a forming drum for winding the belt-shaped material supplied by a conveyor or a pasting conveyor, and between the constant length conveyor and the laminating conveyor, a take-up conveyor is installed in series with the constant-length conveyor, and on the take-up conveyor. , A transfer and laminating device that can reciprocate between the take-up conveyor and the laminating conveyor is provided. It is equipped with a transfer roll that can be rotated, moved, and moved up and down in a different direction, and the band-shaped material wound around the transfer roll is placed on another band-shaped material that has been positioned and transferred on the bonding conveyor in advance. The gist of the present invention is that the transfer rolls are rotated and moved so as to be sequentially superposed and laminated.

Further, according to the present invention, a take-up conveyor is installed in series between the constant-length conveyor and the laminating conveyor orthogonal to the constant-length conveyor, and the take-up conveyor is laid above the take-up conveyor and the laminating conveyor. The guide rail is provided with a reciprocally movable slide member, and a transfer roll is provided that is movable through the guide rail in a direction orthogonal to the moving direction of the slide member and that is vertically and rotatably suspended. The gist is that a plurality of suction and blowout holes are provided on the peripheral surface of the transfer roll, and suction and compressed air blowing means are connected to the transfer roll.

[0008]

The present invention is constructed as described above and sends the strip-shaped material cut into a length corresponding to the width of the forming drum to the take-up conveyor, and transfers the strip-shaped material on the take-up conveyor. After winding on, it is transferred onto a laminating conveyor installed in a direction orthogonal to the take-up conveyor,
The transfer roll is lightly pressed onto another band-shaped material that has been positioned and transferred on the laminating conveyor in advance, and the band-shaped material that has been wound while being rotated is sequentially rewound from one end side thereof and stacked. After the stacking process of the band-shaped material is completed, the polymerized band-shaped material is supplied to the molding drum, so that the band-shaped material can be efficiently wound around the molding drum, Since there is little occurrence of air accumulation between the materials, it is possible to omit the stitching operation for removing air between the belt-shaped materials in the operation of winding the belt-shaped materials on the tire forming drum.

Further, the strip-shaped material cut into a length corresponding to the width of the forming drum is sent out to the take-up conveyor, and the strip-shaped material on the take-up conveyor is wound in close contact with the outer peripheral surface of the transfer roll by suction pressure. After taking, the transfer roll is transferred onto the laminating conveyor installed in the direction orthogonal to the take-up conveyor, and from one end side of the other band-shaped material that has been positioned and transferred on the laminating conveyor in advance, While lightly pressing and rotating the transfer roll, compressed air is blown off to peel off the wound strip-shaped material, and the layers are sequentially stacked and laminated. Since the strip-shaped material is supplied to the forming drum, it is possible to effectively prevent the strip-shaped material from being wrinkled or deformed during the strip-shaped material supply process, and to secure the dimensional stability of the strip-shaped material which is easily deformed. Together we can improve the uniformity of Ya, in which can be improved productivity.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 is a schematic plan view of a belt-shaped material W supply device 10 embodying the present invention, and FIG. 2 is a set of take-up conveyor 12 and fixed-length conveyor 13 installed in a direction orthogonal to the laminating conveyor 11 in FIG. 2 is a schematic plan view of a supply / conveyance device 10A including a cutting device 14 and a transfer / bonding device 15, and FIG. 3 is a front view of FIG.

In FIG. 1, reference numeral 1 denotes a tire forming drum, and a laminating conveyor 11 for supplying a belt-shaped material laminate Wx which has been cut to a predetermined length and superposed on the forming drum 1.
And the pasting conveyor 11a is installed in series. During the transportation of the bonding conveyor 11, the belt-shaped material W1, W2, W3 (carcass material or tie rubber sheet) is cut into the sheet-shaped constant lengths in the direction orthogonal to the transportation direction of the bonding conveyor 11. , Butyl rubber sheet, etc.) to be supplied onto the laminating conveyor 11
0B and 10C are installed.

The supply / conveyance devices 10A, 10B,
Although 3 sets of 10C are installed in this embodiment, it is possible to increase or decrease according to the number of strip-shaped materials W to be wound around the forming drum 1. Further, in the following description, the feeding and conveying device 1
Since 0A, 10B, and 10C are composed of almost the same components, only one set of the rubber sheet feeding / conveying device 10A will be described, and the other feeding / conveying devices 10B and 10C will be denoted by the same reference numerals and description of the configuration will be omitted. To do.

The supply and transport device 10A is shown in FIGS.
As shown in FIG. 3, the take-up conveyor 12 and the standard length conveyor 13 are installed in a direction orthogonal to the conveying direction of the laminating conveyor 11, and the take-up conveyor 12 and the standard length conveyor 13 are installed.
A cutting device 14 is installed at a connection portion with and after the strip-shaped material W unwound from the sheet material original material 16 wound in a roll shape is supplied onto the constant length conveyor 13 via the separate roll 17, The cutting device 14 cuts into a length corresponding to the width of the forming drum.

On the take-up conveyor 12, the strip-shaped material W1 cut into a length corresponding to the width of the forming drum is wound on the take-up conveyor 12 and transferred onto the laminating conveyor 11 for carrying and positioning in advance. A transfer and laminating device 15 is installed for stacking and stacking on the band-shaped material Wa.
As shown in FIGS.
The moving cylinder 1 is mounted on the slide rail 18 laid above the take-up conveyor 12 and the laminating conveyor 11.
A slide member 19 slidable along the slide rail 18 is suspended via 9a, and a guide rail 20 is attached to the bottom of the slide member 19 in a direction orthogonal to the slide rail 18, and the guide rail 20 is provided. Has
A guide member 22 that is movable via a servo motor 21 is suspended.

Elevating cylinders 23a, 23b are suspended at opposite positions of the guide member 22, and rods 24a, 24 of the elevating cylinders 23a, 23b are suspended.
Bearing members 28a and 28b for horizontally supporting a rotation support shaft 27 of a transfer roll 26 having a plurality of suction and blowout holes 25 on its peripheral surface are attached to the tip of b. The transfer roll 26 is provided with a servomotor 30 for rotationally driving the transfer roll 26 on a bracket 29 provided so as to project from the bearing member 28a, and the rotation support shaft 27 of the transfer roll 26 is provided with a pipe 31. A suction / compressed air blowing means 33 for ejecting suction / compressed air at a plurality of suction / blowing holes 25 is connected to the cylindrical peripheral surface of the transfer roll 26 via an electromagnetic switching valve 32 and the like.

Next, the method of supplying the strip-shaped material W will be described with reference to FIGS. 6 (A), (a) to (E), (e) and FIG. 7 (A),
A description will be given with reference to (a) to (E) and (e). First, a plurality of sheet-shaped strip materials W formed into a width corresponding to the circumference of the forming drum 1 are unwound from a sheet material raw material 16 and placed on a constant length conveyor 13 and a take-up conveyor 12 via a separate roll 17. After being supplied, the cutting device 1
According to 4, the length is cut to a length corresponding to the width of the forming drum 1.

As shown in FIGS. 6 (A) and 6 (a), the transfer roll 26 of the transfer / bonding device 15 is applied to the strip-shaped material W1 cut on a fixed length placed on the take-up conveyor 12. Moves down through the lifting cylinders 23a and 23b and adheres onto the strip-shaped material W1. From this state, the vacuum source V of the suction / compressed air blowing means 33 is actuated to suck one end of the band-shaped material W1 from the blowing / blowing hole 25 to bring it into close contact with the transfer roll 26, and the transfer roll 26 is Rotation and guide rail 2 via servo motors 30 and 21
6 (B), (b) to (D) of the strip-shaped material W <b> 1 cut in a constant length on the outer peripheral surface of the transfer roll 26 by feeding in synchronization with 0 (X direction in FIG. 1). , (D) is wound in the circumferential direction of the molding drum 1.

When the winding of the band-shaped material W1 is completed, the transfer roll 26 moves up via the lifting cylinders 23a and 23b (see (E) and (e) in FIG. 6). After this, the next strip-shaped material W1 that has been cut to a constant length is sent to the take-up conveyor 12 and becomes the initial state. Next, the transfer roll 26 wound with the strip-shaped material W1 moves from the end of the guide rail 20 along the slide rail 18 in the arrow (Y direction) of FIG. (A), (a)
As shown in FIG.

On the laminating conveyor 11, the belt-shaped material W2 previously conveyed and positioned by the supply / conveyance device 10B.
(In this case, the carcass material) is waiting, and the transfer roll 26 wound with the strip material W1 is lowered on one end of the strip material W2 by the same operation as described above, and the strip material W2. 7 and the end portion of the strip-shaped material W1 are slightly displaced and pressure-bonded (see FIGS. 7B and 7B).

From this state, the servo motor 21 for feeding the transfer roll 26 and the servo motor 3 for rotational driving are provided.
0 is synchronized, and a switching operation is performed by the electromagnetic switching valve 32 to connect to the compressed air supply source P, and compressed air is ejected from the suction / blowing hole 25 to peel the strip-shaped material W1 from the outer periphery of the transfer roll 26. Then, as shown in (C), (c) to (D), (d) of FIG. 7, the strip-shaped material W1 is sequentially superposed from one end of the strip-shaped material W2 and laminated so that air does not remain between the layers.

When the process of stacking the strip-shaped materials W1 and W2 on top of each other is completed, the transfer roll 26 is raised to its original position via the lifting cylinders 23a and 23b ((E) and (e) in FIG. 7). Further, the transfer roll 26 moves to the original position on the take-up conveyor 12 via the moving cylinder 19a to prepare for the next work. In addition, when there are a plurality of strip-shaped materials W to be cut to a fixed length and the strip-shaped materials W are stacked one on top of the other, the same work is sequentially repeated.

The strip-shaped material laminate Wx laminated in this way is transferred from the laminating conveyor 11 to the laminating conveyor 11a.
Formed on the forming drum 1 from the pasting conveyor 11a.
Is supplied and wound. In this case, the band-shaped material laminate Wx may be directly supplied from the laminating conveyor 11 to the forming drum 1 and wound, if there is enough time. Further, in the embodiment of the present invention, the belt-shaped material W2 is used for the take-up conveyor 12
The transfer device is also a transfer roll system, but since the strip-shaped material W1 only needs to be transferred, a known transfer device that transfers in a flat plate shape may be used.

Therefore, in the winding process of the forming drum 1,
It is possible to omit the stitching work for removing the air between the strip-shaped materials W1 and W2 after the winding work.

[0024]

As described above, according to the present invention, since a plurality of strip-shaped materials are superposed and laminated in the step before the step of winding the strip-shaped material around the forming drum as described above, the strip-shaped material is wrinkled in the step of supplying the strip-shaped material. The dimensional accuracy of the band-shaped material is stable so that it does not become deformed or deformed, the uniformity of the molded tire can be improved, and more than one band-shaped material can be reliably supplied to the tire molding drum in a stacked state. Then, since it is wound at once, there is an effect that the work of winding the strip-shaped material can be efficiently performed.

Further, on a strip-shaped material which has been cut to a predetermined length,
Since other strip-shaped materials are supplied and pressure-bonded by the transfer rolls, they are stacked on top of each other and laminated, so that air traps are less likely to occur between the strip-shaped materials. The stitching work for removing the air can be omitted, and the efficiency of the winding work can be improved.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a belt-shaped material supply device embodying the present invention.

2 is a schematic plan view of a supply / conveyance device including a set of a take-up conveyor, a constant-length conveyor, a cutting device, a transfer-bonding device, and the like installed in a direction orthogonal to the bonding conveyor in FIG.

FIG. 3 is a front view of FIG.

FIG. 4 is an enlarged front view of the transfer bonding apparatus.

FIG. 5 is a side view of FIG.

6 (A), (a) to (E), (e) are operation explanatory views showing a step of winding a belt-shaped material around a transfer roll,
(A) to (E) are front views thereof, and (a) to (e) are
It is a side view corresponding to (A)-(E).

7A, 7 </ b> A, 7 </ b> E, and 7 </ b> E are operation explanatory views showing a process of stacking the belt-shaped material of the transfer roll on another belt-shaped material on the laminating conveyor so as to be laminated. , (A) ~
(E) is the front view, (a)-(e) is (A)-
It is a side view corresponding to (E).

FIG. 8 is a schematic plan view of a conventional feeding device for a strip-shaped material W.

[Explanation of Codes] 1 forming drum 10 supply device 10A, 10B, 10C for belt-like material supply conveying device 11 laminating conveyor 12 take-up conveyor 13 fixed length conveyor 14 cutting device 15 transfer laminating device 16 sheet material roll 17 separate roll 18 Slide Rail 19 Slide Member 19a Moving Cylinder 20 Guide Rail 21 Servo Motor 22 Guide Members 23a, 23b Lifting Cylinders 24a, 24b Rod 25 Suction / Blowout Hole 26 Transfer Roll 27 Rotation Support Shafts 28a, 28b Bearing Member 29 Bracket 30 Servo motor 31 Piping 32 Electromagnetic switching valve 33 Suction and compressed air blowing means

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Claims (5)

(57) [Claims] 1. A plurality of sheet-shaped strip-shaped materials each formed into a width corresponding to the circumferential length of a forming drum is unwound, and the strip-shaped material is cut into a length corresponding to the width of the forming drum. After transferring the strip-shaped material that has been cut to the pasting conveyor, the strip-shaped material that is cut to a length corresponding to the width of the molding drum is sent to the take-up conveyor. After winding the strip-shaped material on the take-up conveyor onto a transfer roll, the strip-shaped material is transferred to a laminating conveyor installed in a direction orthogonal to the take-up conveyor and positioned and transferred on the laminating conveyor in advance. On another strip-shaped material which is present, the strip-shaped material which is wound by moving the transfer roll while rotating, is sequentially laminated from one end side and laminated, after the lamination step of the strip-shaped material is completed, The A method for supplying a strip-shaped material, comprising supplying the polymerized strip-shaped material to a forming drum. 2. A plurality of sheet-shaped strip-shaped materials each formed into a width corresponding to the peripheral length of the forming drum is unwound, and the strip-shaped material is cut into a length corresponding to the width of the forming drum. After transferring the band-shaped material cut to a fixed length onto the pasting conveyor, the band-shaped material is supplied to the forming drum. In the method of supplying the band-shaped material, the band-shaped material cut into a length corresponding to the width of the forming drum is placed on the take-up conveyor. After being sent to the take-up conveyor, the strip-shaped material on the take-up conveyor is wound onto the outer peripheral surface of the transfer roll in a close contact state by suction pressure, and then the transfer roll is placed on the laminating conveyor installed in the direction orthogonal to the take-up conveyor. The belt-shaped material, which is transferred to the laminating conveyor, is moved while rotating the transfer roll from one end side of the other belt-shaped material that has been positioned and transferred on the laminating conveyor in advance, and compressed air is blown out to be wound up. To A method for supplying a strip-shaped material, characterized in that the strip-shaped material is peeled off and laminated in order, and after the stacking step of the strip-shaped material is completed, the polymerized strip-shaped material is supplied to a molding drum. 3. A constant number of at least two units provided with a cutting device for cutting a plurality of sheet-shaped strip-shaped materials formed into a width corresponding to the peripheral length of the forming drum into lengths corresponding to the width of the forming drum. A scale conveyor, a laminating conveyor installed in a direction orthogonal to the standard conveyor, or a laminating conveyor arranged in series with the laminating conveyor, and a laminating conveyor or a belt-shaped material supplied by the laminating conveyor. It is composed of a drum, and a take-up conveyor is installed in series with the constant-scale conveyor between the constant-length conveyor and the laminating conveyor, and the take-up conveyor and the laminating conveyor can reciprocate on the take-up conveyor. A transfer laminating device is provided. This transfer laminating device is capable of rotating, moving, and elevating the strip-shaped material, which has been cut to a fixed length, in the direction of the circumferential length of the forming drum. On another strip-shaped material that has been positioned and transferred in advance on the laminating conveyor, the strip-shaped material wound around the transfer roll is sequentially superposed while rotating and moving the transfer roll. An apparatus for supplying a strip-shaped material, which is configured to be laminated. 4. The supply transport device comprising at least two sets of a feeding conveyor, a constant length conveyor, a cutting device, a transfer bonding device, etc. is installed in the transport path of the bonding conveyor. Device for feeding strip material. 5. A take-up conveyor is installed in series with the constant-length conveyor in series with the constant-length conveyor and a laminating conveyor orthogonal to the constant-length conveyor, and a guide rail laid above the take-up conveyor and the laminating conveyor. A reciprocating slide member is provided in the transfer member, and a transfer roll is provided that is movable in a direction orthogonal to the moving direction of the slide member via a guide rail and that is vertically and rotatably suspended. A plurality of suction / blowing holes are provided on the peripheral surface of the belt, and a suction / compressed air blowing means is connected to the transfer roll.