JPH09300482A - Manufacture of tire building member and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the manufacture of a tire building member and an apparatus therefor capable of eliminating the need for carrying work of small pieces of a material, which are hard to handle, to a work table and easily sticking the small pieces of the material to one another. SOLUTION: After obtaining small pieces 29 of a material by cutting a long material 22 having a width narrower than a manufacture length L1 of a tire building member into a length corresponding to a manufacture width W, two or more small pieces 29 of the material are adjacently stuck to one another to manufacture the tire building member having the manufacture length L1 and the manufacture width W. In this case, the preceding small piece 29 of the material from among small pieces 29 of the material fed through a conveyor 9 for transferring small pieces of the material is wound around a winding drum 11 rotatable and movable in the direction of a rotary shaft 30, and the winding drum 11 is then moved in the direction of the rotary shaft. The succeeding small piece 29 of the material is wound around the winding drum 11 at the next position of the preceding small piece 29 of the material, and the mutual adjacent edges thereof are stuck to each other, thus manufacturing the tire building member having the manufacture length L1 and the manufacture width W.

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 manufacturing a tire molding member.

[0002]

BACKGROUND OF THE INVENTION When molding large tires, for example, length 2000 mm, width 1000 mm, thickness manufacturing length as shown in FIG. 6, for example of 5mm (c) L ₃ and manufacture a width W
However, it may be difficult to prepare a material having a manufacturing width W. In this case, a tire having a width smaller than the manufacturing length L ₃ of the tire molding member may be used. After cutting the material into a length corresponding to the manufacturing width W to obtain a small piece of the material, two or more of the small pieces of material are attached side by side to obtain a tire molding member having a manufacturing length L ₃ and a manufacturing width W. I am trying to manufacture it. That is, in FIGS. 6A to 6C, three small pieces of the material are attached side by side, and the manufacturing length L ₃
And a case where a tire molding member having a manufacturing width W is manufactured.

[0003] As shown in FIG. 6 (a) (b), the tire forming narrow elongated material width than manufacturing the length L ₃ of the member 1 (long material 1 of width L ₁₎ to the core 3 Rolling winding (refer to 2), this long material 1 is paid out, and is cut by a cutting machine 4 to a length corresponding to the manufacturing width W, and a small piece of material 5 (width L ₂
After obtaining the material piece 5), 3 pieces 5a, 5 of the material piece 5
b and 5c are carried on a flat table (not shown) and are stuck side by side to manufacture a tire molding member having a manufacturing length L ₃ and a manufacturing width W.

[0004]

The raw material 1 is a thin piece of raw material mainly made of raw rubber, has a strong adhesiveness and is easily deformed, so that the raw material pieces 5a, 5b and 5c are placed on a flat table (not shown). ) It was difficult to carry up. The present invention is proposed in view of the above-mentioned problems, and the object thereof is to eliminate the need for a work of transporting difficult-to-handle material pieces to a table, and to easily bond the material pieces. Another object is to provide a method and an apparatus for manufacturing a tire molding member.

[0005]

In order to achieve the above object, the method for manufacturing a tire molding member of the present invention is to manufacture a long raw material 22 having a width narrower than the manufacturing length L ₁ of the tire molding member. After obtaining a small piece of material 29 by cutting it into a length corresponding to the width W, two or more pieces of the small piece of material 29 are attached side by side to manufacture a tire molding member having a manufacturing length L ₁ and a manufacturing width W. Of the material pieces 29 sent from the material piece conveying conveyor 9, the preceding material piece 29 is wound around the winding drum 11 which is rotatable and movable in the direction of the rotation axis 30, and then the winding drum 11 is moved. By moving in the direction of the rotation axis 30 and winding the following material piece 29 around the position next to the preceding material piece 29, and adhering the adjacent edges to each other, the manufacturing length L ₁ and manufacturing width W Characterized by manufacturing tire moldings Claim 1).

Further, the tire molding member manufacturing apparatus of the present invention is characterized in that the winding drum 11 which is rotatable and movable in the rotational axis direction is provided on the downstream side of the material piece conveying conveyor 9 in the conveying direction (claim). Item 2). Further, in the tire molding member manufacturing apparatus of the present invention, the payout conveyor 18 for paying out the manufactured tire molding member is provided at the downstream side in the transport direction of the winding drum 11 that is rotatable and movable in the rotation axis direction so as to be able to be flipped up. (Claim 3)

In the tire molding member manufacturing apparatus according to the third aspect, the payout conveyor 18 is arranged at an angle θ with respect to the table 31, and the rotary shaft 3 of the winding drum 11 is arranged.
0 is arranged parallel to the table 31 (claim 4). In the tire molding member manufacturing apparatus according to claim 3, the payout conveyor 18 is arranged orthogonal to the table 31, and the rotary shaft 30 of the winding drum 11 is arranged parallel to the table 31. (Claim 5).

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION First Embodiment Next, a first embodiment of a manufacturing apparatus used for carrying out the method for manufacturing a tire molding member of the present invention will be described with reference to FIGS. Is a material supply device, 3 is a material roll in which the material is rolled up, 5 is a support stand that rotatably supports the material roll 3, 4 is a liner roll that is rotatably supported by the support stand 5, and 6a to 6e are the same. The peeling roll rotatably supported on the support base 5, 22 is a material, 35 is a liner, and the material (material with liner) fed from the material roll 3 is peeling rolls 6a to 6
is guided to e and separated into the material 22 and the liner 35,
Liner 35 separated from material 22 is liner roll 4
It is designed to be wound up. Liner roll 4
Is rotated by a drive motor (not shown).

On the other hand, the material 22 separated from the liner 35
Is transported to the downstream side in the transport direction by the material transport conveyor 2 and hangs down from the downstream end of the material transport conveyor 2 in the transport direction (see the chain double-dashed line 23). A known cutting device 8 is provided in this portion, and the suspended material 22
Is cut, and the cut small piece 29 of material is conveyed to the downstream side in the conveying direction by the small piece piece conveying conveyor 9 and is guided above the winding drum 11.

The winding drum 11 is a winding drum support stand 1.
It is rotatably supported on 5. Further, a belt 36 is suspended between the drive side pulley 14 of the motor 12 installed on the support base 15 and the driven side pulley 13 attached to the end of the rotating shaft of the winding drum 11. Is transmitted to the winding drum 11 via the driving pulley 14, the belt 36, and the driven pulley 13, and the winding drum 11 is rotated.

Further, the winding drum supporting base 15 is constructed by a supporting rail 17 laid on a pedestal 16 to wind the winding drum 11.
Is supported so as to be movable in the direction of the rotation axis 30. Further, the pedestal 16 has the screw rod 25 of FIG. 1 and a motor 26 for rotating the screw rod 25. Also, the winding drum support stand 15
Has a nut (not shown), which is screwed into the threaded rod 25 and drives the motor 26 to drive the threaded rod 2
When 5 is rotated, the rotation is transmitted to the winding drum support stand 15 via the nut, and the winding drum support stand 15 and the winding drum 11 move in the direction of the rotation axis 30. Reference numeral 24 in FIG. 1 indicates a moving range of the winding drum support base 15 and the winding drum 11 by the screw rod 25.

As shown in FIG. 1, between the winding drum 11 and the table 31, a roller conveyor (delivery conveyor) 18 composed of a plurality of rollers 21 is arranged. Further, as shown in FIG. 2, the roller conveyor 18 has a winding drum 1
It is configured so that it can be flipped upward to a two-dot chain line position 19 about an axis parallel to the rotation axis 30 of one (see arrow 20).

The roller conveyor (delivery conveyor) 1
8 is arranged at an angle θ with respect to the table 31,
The rotating shaft 30 of the winding drum 11 is arranged parallel to the table 31. Next, the operation of the tire molding member manufacturing apparatus shown in FIGS. 1 and 2 will be specifically described.

When manufacturing a large-sized tire molding member, the joining edge portion of the cut small material piece 29 is wound on the winding drum 1.
The material piece 29 is supplied from the winding drum 11 to the table 31 at an angle θ, disliked to be orthogonal to the rotating shaft 30 of No. 1. Material transport conveyor 2
Is driven to feed the raw material 22 to the cutting device 8, where the raw material 22 is cut into a length L ₃ (production width W = L ₃ cos θ) to form the raw material piece 29, while the raw material piece conveying conveyor 9 To drive the cut material piece 29 to wind the drum 11.
Wrap around.

As for the width L ₂ of the material piece 29, when the length of the tire molding member finally obtained is L ₁ , the width L ₂ is obtained by adding the lapping amount α for joining to one obtained by dividing it by an integer n. Length L
₄ (see FIGS. 4A and 4B), L ₄ cos θ =
It has a width of L ₂ (see FIG. 1). If this material piece 29 is taken as the preceding material piece 32, this material piece 32 is wound around the winding drum 11, and then the winding drum 11 is moved in the direction of the rotation axis L.
_By moving ₁ / n and rotating the winding drum 11 in the same direction, the succeeding material piece 33 is wound around the winding drum 11, and the adjacent edge between the preceding material piece 32 and the following material piece 32 is wound. Part (lap part) are pasted together.

By repeating this operation n times (in this embodiment, the number of material pieces 32, 33, 34),
A tire molded member having a predetermined size (a tire molded member having a manufacturing length L ₁ and a manufacturing width W) is manufactured. Wrap this around drum 1
While unwinding from 1, it is transferred to the table 31 by the roller conveyor (delivery conveyor) 18.

Material pieces 32 to 3 for the winding drum 11
Since the worker intervenes in the winding of No. 4, the roller conveyor 18 flips up to the position of the two-dot chain line 19 in FIG. 2 to secure the work place of the worker. (Second Embodiment) Next, a second embodiment of the manufacturing apparatus used for carrying out the method for manufacturing a tire molded member of the present invention will be described with reference to FIG. 3. In this embodiment, the roller conveyor (paying conveyor) 21 is a table. The rotary shaft 30 of the winding drum 11 is arranged in a state of being orthogonal to 31 and parallel to the table 31.

Further, the material small piece conveying conveyor 9 is arranged so as to be inclined by an angle θ with respect to the winding drum 11, and the downstream end of the material small piece conveying conveyor 9 in the conveying direction and the top of the winding drum 11 are arranged. Since a wedge-shaped gap is formed between them, a table 37 is provided here for supporting the material pieces when the material pieces are wound. Next, the operation of the tire molding member manufacturing apparatus shown in FIG. 3 will be specifically described.

In this tire forming member manufacturing apparatus, the rotary shaft 30 of the winding drum 11 is arranged in parallel with the table 31, and conversely, the material piece conveying conveyor 9 is angled with respect to the winding drum 11. It is inclined by θ, and the downstream end of the material small piece conveying conveyor 9 in the conveying direction and the winding drum 11 are arranged.
A wedge-shaped gap is formed with the top of the. For this reason,
The table 37 is arranged at this portion because the material piece does not spread like a wedge between the material piece conveying conveyor 9 and the top of the winding drum 11.

With this configuration, when the material small piece 29 from the material small piece conveying conveyor 9 is wound around the winding drum 11, if the feeding speed of the material small piece 29 is v, the winding drum 11 is at the surface speed v. Simultaneously with the rotation, the winding drum 11 is moved in the direction of the rotating shaft 30 at a speed of Vsinθ. As a result, the end portion 35 (see FIG. 5) of each material piece wound on the winding drum 11 is parallel to the rotation shaft 30 of the winding drum 11. For this reason, when unwinding each small piece of material from the winding drum 11 to the roller conveyor (discharging conveyor) 21, the front end portion of each small piece of material in the conveying direction becomes parallel to the drum rotating shaft 30 of the winding drum 11. . Moreover, since each material piece moves in the direction orthogonal to the drum rotation shaft 30 of the winding drum 11, workability is improved. It is particularly advantageous when applied to an end holding device or the like.

[0021]

As described above, according to the method for manufacturing a tire molding member of the present invention, a long raw material 22 having a width narrower than the manufacturing length L ₁ of the tire molding member is cut into a length corresponding to the manufacturing width W. After obtaining the material small pieces 29, two or more of the material small pieces 29 are laminated side by side, and when manufacturing a tire molding member having a manufacturing length L ₁ and a manufacturing width W, the material small pieces are conveyed from the conveyor 9 for material small piece transportation. Of the material pieces 29 thus obtained, the preceding material piece 29 is wound around the winding drum 11 which is rotatable and movable in the direction of the rotation axis 30, and then the winding drum 11 is moved in the direction of the rotation axis 30 to The material piece 29 in a row is wound around a position next to the preceding material piece 29, and adjacent edge portions thereof are bonded to each other to manufacture a tire molding member having a manufacturing length L ₁ and a manufacturing width W, which is difficult to handle. Transporting the small pieces of material 29 to the table 31 It is able to work unnecessary, material pieces 29
Can be easily bonded.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of a manufacturing apparatus used for carrying out a method for manufacturing a tire molded member of the present invention.

FIG. 2 is a side view of the manufacturing apparatus.

FIG. 3 is a plan view showing a second embodiment of a manufacturing apparatus used for carrying out the method for manufacturing a tire molded member of the present invention.

4 (a) and 4 (b) are explanatory views showing dimensions of a small piece of material.

FIG. 5 is an explanatory diagram showing the relationship between the winding drum of the second embodiment and each material piece.

6A to 6C are operation explanatory views of a conventional apparatus for manufacturing a tire molding member.

[Explanation of symbols]

1 Material Supply Device 2 Material Conveyor 3 Material Roll Incorporating Material 4 Liner Roll 5 Support Stand for Material Roll 3 6a to 6e Peeling Roll 8 Cutting Device 9 Material Small Piece Conveyor 11 Winding Drum 12 Motor 13 Driven Side Pulley 15 Rolling drum support stand 14 Drive side pulley 16 Pedestal 17 Support rail 18 Roller conveyor (delivery conveyor) 21 Roller 22 Material 25 Screw rod 26 Motor 29 Material small piece 30 Rotating shaft of winding drum 31 Table 32 to 34 Table 31 Upper material Small piece 35 Liner 36 Belt L ₃ Manufacturing length W Manufacturing width

Claims (5)

[Claims] 1. A raw material piece 29 is obtained by cutting a long raw material 22 having a width narrower than a production length L ₁ of a tire molding member into a length corresponding to a production width W. In adhering two or more sheets side by side to manufacture a tire molding member having a manufacturing length L ₁ and a manufacturing width W, of the material small pieces 29 sent from the material small piece conveying conveyer 9, the preceding material small piece 29. Is wound around a winding drum 11 that is rotatable and movable in the direction of the rotation axis 30, and then the winding drum 11 is moved in the direction of the rotation axis so that the following material piece 29 is placed next to the preceding material piece 29. A method for manufacturing a tire molding member, which comprises winding a tire molding member having a manufacturing length L ₁ and a manufacturing width W by wrapping at a position and adhering the adjacent edge portions to each other. 2. A winding drum 11 which is rotatable in the conveying direction downstream of the material piece conveying conveyor 9 and is movable in the rotation axis direction.
An apparatus for manufacturing a tire molding member, characterized in that: 3. A delivery conveyor 18 for delivering the manufactured tire molding member to a table 31 is provided at the downstream side of the winding drum 11 which is rotatable and movable in the rotation axis direction in the conveying direction so as to be able to be flipped up. Equipment for manufacturing tire moldings. 4. The payout conveyor 18 is attached to a table 31.
The apparatus for manufacturing a tire molding member according to claim 3, wherein the rotation shaft 30 of the winding drum 11 is arranged parallel to the table 31 with respect to the table 31. 5. The payout conveyor 18 is attached to a table 31.
The apparatus for manufacturing a tire molding member according to claim 3, wherein the rotating shaft 30 of the winding drum 11 is arranged in a state orthogonal to the table 31, and the rotating shaft 30 of the winding drum 11 is arranged parallel to the table 31.