Apparatus for manufacturing belt for tire

Abstract

To provide an apparatus for manufacturing a belt for tire capable of conveying a rubber member while suppressing positional deviation in a front side part of the rubber member.SOLUTION: An apparatus for manufacturing a belt for tire of the present invention includes: a joining table 50 on which a parallelogram-shaped rubber member 1a is placed and which moves the rubber member 1a toward a front side X1 in a first direction; and a joining device 80 which joins the sides of the rubber member 1a together. A transport conveyor 60 which transports the rubber member 1a on the joining table 50 toward a rear side X2 in the first direction of a joining position P includes a plurality of conveyor belts 61f, 62f, 63f, and 64f, and the conveyor belts 61f, 62f, 63f, and 64f are arranged in a stepped pattern such that the conveyor belts that are closer to one side Y1 in a second direction are closer to the front side X1 in the first direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a tire belt manufacturing apparatus. [Background technology]

[0002] A belt for a pneumatic tire is made of multiple cords that extend obliquely relative to the tire circumferential direction and are covered with rubber. This tire belt is manufactured from a long material called a raw material, in which multiple cords are covered with rubber. The direction in which the cords extend in the raw material coincides with the longitudinal direction of the raw material.

[0003] In the manufacture of tire belts, as described in Patent Document 1, for example, a raw web is first cut obliquely to its longitudinal direction (i.e., the direction in which the cord extends). This forms a parallelogram-shaped rubber member consisting of cut edges formed by the cutting and uncut edges corresponding to the side edges of the raw web. The formed rubber member is transported by a transport conveyor so that it contacts the uncut edges of the previously cut rubber member, and then the side edges of the rubber member are joined together to manufacture a long tire belt.

[0004] The long tire belt is then cut to a predetermined length that is equivalent to one circumference of the tire, and is bonded together with tire components such as inner liners, sidewalls, beads, and treads in an unvulcanized state to form a green tire (see, for example, Patent Document 1 below). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2007-125895 Summary of the Invention [Problem to be solved by the invention]

[0006] The rubber material cut out from the roll has a tapered shape with an acute angle at the front side in the conveying direction of the conveyor, which means that the driving force from the conveyor is not transmitted to the tapered front part, which can easily cause the front part of the rubber material to become misaligned.

[0007] The present invention has been made in consideration of the above circumstances, and has an object to provide a tire belt manufacturing device that can transport a rubber member while suppressing positional deviation in the front portion of the rubber member. [Means for solving the problem]

[0008] The present invention includes the embodiments shown below.

[0009] [1] A joining device is provided, the joining device including: a joining table on which a parallelogram-shaped rubber member is placed and which moves the rubber member forward in a first direction; and a joining device which joins sides of the rubber member together; a joining device for joining a rear side edge portion in the first direction of the rubber member placed on the front side in the first direction of a joining position set on the joining table to a front side edge portion in the first direction of the rubber member placed on the rear side in the first direction of the joining position, the joining table includes a transport conveyor that moves the rubber member toward the front side in the first direction and transports it to the rear side of the joining position in the first direction, and a support unit that supports the rubber member placed on the front side of the joining position in the first direction, The tire belt manufacturing device, wherein the transport conveyor includes a plurality of conveyor belts extending in the first direction and arranged side by side in a second direction perpendicular to the first direction, and the plurality of conveyor belts are arranged in a stepped pattern such that the conveyor belts arranged on one side in the second direction are located further forward in the first direction.

[0010] [2] The tire belt manufacturing apparatus according to [1] above, wherein the plurality of conveyor belts are driven by the same driving device.

[0011] [3] The tire belt manufacturing device according to [1] or [2] above, wherein the transport conveyor includes a pulley arranged at both ends of the transport section that transports the rubber material for each of the plurality of conveyor belts, and the diameter of the pulley is the same among the plurality of conveyor belts.

[0012] [4] The tire belt manufacturing device according to any one of [1] to [3] above, wherein the rubber member placed on the front side of the joining position in the first direction is arranged so as to cover a portion of the width direction of the plurality of conveyor belts.

[0013] [5] The tire belt manufacturing device according to any one of [1] to [4] above, wherein the transport conveyor has a plurality of suction portions that suction the rubber member and are spaced apart in the first direction, and the suction portions are arranged more densely on the front side in the first direction than on the rear side in the first direction.

[0014] [6] The tire belt manufacturing device according to any one of [1] to [5] above, wherein the transport conveyor includes a pulley arranged at both ends of a transport section that transports the rubber member for each of the plurality of conveyor belts, and the diameter of the pulley at the center in the rotation axis direction is larger than the diameter at both ends in the rotation axis direction. [Effects of the Invention]

[0015] In the present invention, by providing the above-described features, the driving force of the conveyor belt can be transmitted to the front end of the parallelogram-shaped rubber member, and the rubber member can be transported while suppressing positional deviation of the rubber member. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a plan view of an entire tire belt manufacturing apparatus according to an embodiment of the present invention; [Figure 2] Top view of the joining table [Figure 3] The joining table is seen from the direction of arrow A in Figure 2. [Figure 4]1A and 1B are side views of conveyors constituting the joining table, in which (a) shows the first conveyor, (b) shows the second conveyor, (c) shows the third conveyor, and (d) shows the fourth conveyor. DETAILED DESCRIPTION OF THE INVENTION

[0017] The following description of the embodiments will be given with reference to the accompanying drawings. Note that the embodiments described below are merely examples, and any modifications that do not depart from the spirit of the present invention are included within the scope of the present invention.

[0018] (1) Overall configuration of tire belt manufacturing apparatus 10 The tire belt manufacturing apparatus 10 (hereinafter sometimes referred to as the manufacturing apparatus 10) manufactures a tire belt B by cutting a raw belt 1, which is made of reinforcing cords made of multiple steel cords or organic fiber cords and coated with unvulcanized rubber, obliquely with respect to the extension direction of the reinforcing cords to form a parallelogram-shaped rubber member 1a, and joining the uncut edges 1a1 of the formed rubber member 1a.

[0019] As shown in FIG. 1, the manufacturing apparatus 10 includes a supply device 20, a cutting device 30, a forming section 40, a joining table 50, a joining device 80, and a carrying-out device 90.

[0020] The supply device 20 includes a supply drum 21 around which the belt raw material 1 is wound, and a supply conveyor 22 that conveys the belt raw material 1 pulled out from the supply drum 21 in the direction in which the reinforcing cord extends. The supply conveyor 22 is capable of adjusting the feed length for intermittently conveying the belt raw material 1, and intermittently supplies the belt raw material 1 to the forming section 40 at regular intervals of a length that matches the belt width.

[0021] The cutting device 30 cuts the raw belt 1, which is conveyed by the supply conveyor 22 to the forming unit 40 at regular intervals, in a first direction X that forms a predetermined angle θ (for example, the angle θ is 15° to 30°) with respect to the conveying direction D. As a result, a parallelogram-shaped rubber member 1a is formed on the forming unit 40, the rubber member 1a having an acute angle θ, which is made up of a pair of non-cut sides 1a1 parallel to the conveying direction D (i.e., parallel to the side edges of the raw belt 1) and a pair of cut sides 1a2 formed by the cutting device 30 cutting the raw belt 1.

[0022] The forming section 40 is a conveyor that moves the rubber member 1a formed by the cutting device 30 in the first direction X in which the cutting device 30 cut the belt raw material 1, and transports the rubber member 1a to a joining table 50 provided on the front side X1 of the forming section 40 in the first direction.

[0023] The joining table 50 moves the rubber member 1a supplied from the forming unit 40 in the first direction X so that the non-cut side 1a1 is positioned at a joining position P set on the joining table 50. At the joining position P set on the joining table 50, the rubber member 1a conveyed later is joined to the non-cut side 1a1 of the rubber member 1a conveyed earlier. The detailed configuration of the joining table 50 will be described later.

[0024] The joining device 80 joins a rubber member 1af (hereinafter, this rubber member may be referred to as a front rubber member) arranged on the first direction front side X1 of the joining position P set on the joining table 50, and a rubber member 1ab (hereinafter, this rubber member may be referred to as a rear rubber member) arranged on the first direction rear side X2 of the joining position P.

[0025] Specifically, the joining device 80 includes a pair of joining rollers 81 and a drive unit (not shown) that rotates the joining rollers 81 while moving them back and forth along the uncut edge 1a1 of the rubber member 1a. The joining device 80 has a pair of joining rollers 81 that are arranged at the joining position P. By moving along the uncut edges 1a1 of the front rubber member 1af and the rear rubber member 1ab, the ends of both rubber members 1a are pulled together and the uncut edges 1a1 are butted together in a pressure-bonded state to form a tire belt B.

[0026] The carry-out device 90 is a conveyor provided on the front side X1 in the first direction of the joining table 50. After the joining device 80 joins the uncut edges 1a1 of the front rubber member 1af and the rear rubber member 1ab, the carry-out device 90 moves the tire belt B to the front side X1 in the first direction so that the uncut edge 1a1 on the rear side X2 in the first direction of the tire belt B is at the joining position P.

[0027] (2) Joint table 50 As shown in Figures 2 and 3, the joining table 50 includes a transport conveyor 60 that transports the rubber member 1a transported from the forming section 40 to the first direction front side X1, and a support section 70 that supports the rubber member 1a arranged on the first direction front side X1 of the joining position P.

[0028] (3) Transport Conveyor 60 The transport conveyor 60 includes a plurality of conveyors extending in a first direction X and arranged parallel to one another, for example, four conveyors: a first conveyor 61, a second conveyor 62, a third conveyor 63, and a fourth conveyor 64. The first conveyor 61, the second conveyor 62, the third conveyor 63, and the fourth conveyor 64 are arranged in this order from one side to the other side in a second direction Y perpendicular to the first direction X.

[0029] The transport conveyor 60 can be composed of any number of conveyors, two or more, but it is preferable to compose the transport conveyor 60 from three or four conveyors, taking into consideration ease of conveyor control and ease of adjusting the tension of the conveyor belt.

[0030] The first conveyor 61 includes a rear pulley 61a at its rear end in the first direction, a front pulley 61b at its front end in the first direction, a drive pulley 61c connected to a drive shaft 65a of a drive device 65 such as a servo motor with an encoder, a pair of vent pulleys 61d on both sides of the drive pulley 61c in the first direction, an adjustment pulley 61e adjustable in position in the vertical direction, a conveyor belt 61f connecting these pulleys 61a, 61b, 61c, 61d, and 61e, and a suction part 61g that suctions the rubber member 1a conveyed by the conveyor belt 61f. The drive pulley 61c, the pair of vent pulleys 61d, and the adjustment pulley 61e are located below the rear pulley 61a and the front pulley 61b. The conveyor belt 61f is made of, for example, a flat belt made of resin such as polyurethane, and may be made of the same material as the conveyor belts provided on the conveyors that make up the forming unit 40 and the carry-out device 90.

[0031] When the drive shaft 65a of the drive device 65 rotates, the power of the first conveyor 61 is transmitted to the conveyor belt 61f via the drive pulley 61c, and the conveyor belt 61f moves circulating around the pulleys 61a, 61b, 61c, 61d, and 61e. As a result, the conveyor belt 61f moving above the rear pulley 61a and the front pulley 61b between the rear pulley 61a and the front pulley 61b functions as a conveying section 61f1 that conveys the rubber member 1a to the front side X1 in the first direction.

[0032] The suction unit 61g is formed of a magnet, a vacuum suction device, or the like, and is provided below the conveyor belt 61f in the transport unit 61f1 at a distance in the first direction X. The suction unit 61g suction-holds the rubber member 1a placed on the conveyor belt 61f, and prevents the rubber member 1a from moving in directions other than the first direction X when the conveyor belt 61f moves.

[0033] The second conveyor 62, the third conveyor 63, and the fourth conveyor 64 have the same configuration as the first conveyor 61, although the lengths of the transport sections, the positions of the adjustment pulleys, and the arrangements of the suction sections are different, as will be described later.

[0034] That is, the second conveyor 62 includes a rear pulley 62a, a front pulley 62b, a drive pulley 62c, a pair of vent pulleys 62d, an adjustment pulley 62e, a conveyor belt 62f, and an adsorption portion 62g, similar to the first conveyor 61. The third conveyor 63 includes a rear pulley 63a, a front pulley 63b, a drive pulley 63c, a pair of vent pulleys 63d, an adjustment pulley 63e, a conveyor belt 63f, and an adsorption portion 63g, similar to the first conveyor 61. The fourth conveyor 64 includes a rear pulley 64a, a front pulley 64b, a drive pulley 64c, a pair of vent pulleys 64d, an adjustment pulley 64e, a conveyor belt 64f, and an adsorption portion 64g, similar to the first conveyor 61.

[0035] As shown in FIG. 3, the first conveyor 61, the second conveyor 62, the third conveyor 63, and the fourth conveyor 64 have their respective rear pulleys 61a, 62a, 63a, and 64a supported on a common support shaft 60a, and are arranged with their rear ends aligned in the first direction.

[0036] The front pulleys 61b, 62b, 63b, and 64b are positioned at different positions in the first direction X. Specifically, the front pulley 61b of the first conveyor 61 is arranged furthest to the front in the first direction (closer to the carry-out device 90), and the front pulley 62b of the second conveyor 62, the front pulley 63b of the third conveyor 63, and the front pulley 64b of the fourth conveyor 64 are arranged in this order so as to be gradually further away from the carry-out device 90.

[0037] In other words, the first conveyor 61, the second conveyor 62, the third conveyor 63, and the fourth conveyor 64 have conveying sections 61f1, 62f1, 63f1, 64f1 that convey the rubber member 1a, and the lengths of these conveyors in the first direction X become gradually shorter in this order, and the conveyors that are located on one side of the second direction Y are positioned further forward in the first direction Y, so that they are arranged in a stepped manner in a plan view.

[0038] The rear pulleys 61a, 62a, 63a, 64a and the front pulleys 61b, 62b, 63b, 64b have an arc-shaped cross section with a larger diameter at the center in the axial direction than at both ends, and the diameter gradually decreases toward both ends. As an example of the dimensions of the rear pulleys 61a, 62a, 63a, 64a and the front pulleys 61b, 62b, 63b, 64b, if the diameter at the axial center is 50 mm and the length (width) of the axial direction is 80 mm, the diameter at both axial ends can be set to be 49.0 mm or more and 49.8 mm or less.

[0039] The drive pulleys 61c, 62c, 63c, and 64c are all connected to the drive shaft 65a of the drive unit 65, so that the first conveyor 61, the second conveyor 62, the third conveyor 63, and the fourth conveyor 64 are driven by the same drive unit 65.

[0040] The rear pulleys 61a, 62a, 63a, and 64a and the front pulleys 61b, 62b, 63b, and 64b all have the same outer diameter. The drive pulleys 61c, 62c, 63c, and 64c also have the same outer diameter. This makes the conveying speeds of the first conveyor 61, the second conveyor 62, the third conveyor 63, and the fourth conveyor 64 (i.e., the moving speeds of the conveyor belts 61f, 62f, 63f, and 64f) the same.

[0041] The adjustment pulleys 61e, 62e, 63e, and 64e are provided at different positions in the first direction X, and their vertical positions can be adjusted independently. By individually changing the vertical positions of the adjustment pulleys 61e, 62e, 63e, and 64e, the tensions of the conveyor belts 61f, 62f, 63f, and 64f of the first conveyor 61, the second conveyor 62, the third conveyor 63, and the fourth conveyor 64 can be individually adjusted.

[0042] The suction portions 61g, 62g, 63g, and 64g may be arranged at equal intervals in the first direction X, or, as shown in FIG. 2, may be arranged closer together at closer intervals on the front side X1 of the first direction than on the rear side X2 of the first direction of the conveying portions 61f1, 62f1, 63f1, and 64f1.

[0043] (3) Support part 70 As shown in FIGS. 1 and 2, the support portion 70 is provided on the front side X1 in the first direction of the transfer conveyor 60, and supports the front rubber member 1af arranged on the front side X1 in the first direction of the joining position P.

[0044] Specifically, the support portion 70 is arranged in a stepped manner in a plan view so as to face the front ends of the first conveyor 61, the second conveyor 62, the third conveyor 63, and the fourth conveyor 64 in the first direction, with the clearance necessary for the movement of the conveyor belts 61f, 62f, 63f, and 64f.

[0045] The support portion 70 supports the front rubber member 1af, that is, the rubber member 1af that forms part of the tire belt B and has an uncut edge 1a1 on the front side in the first direction joined to another rubber member 1a.

[0046] In this embodiment, the joint position P is set so as to intersect with opposing portions 70a, 70b, 70c, and 70d of the support portion 70 that face the first conveyor 61, the second conveyor 62, the third conveyor 63, and the fourth conveyor 64 in a plan view.

[0047] (3) Manufacturing method of tire belt B using manufacturing device 1 The tire belt B is manufactured by the manufacturing apparatus 10 having the above-described configuration as follows.

[0048] As shown in FIG. 1, the front rubber member 1af is positioned so that the uncut edge 1a1 on the rear side X2 in the first direction is positioned at the joining position P, and is positioned so as to cover a portion of the width direction (second direction Y) of each conveyor belt 61f, 62f, 63f, 64f of the multiple conveyors 61, 62, 63, 64.

[0049] In addition, after the supply device 20 pulls out a predetermined length of the belt raw material 1 from the supply drum 21 and supplies it to the forming section 40, the cutting device 30 cuts the belt raw material 1 to form a rubber member 1a on the forming section 40, and the forming section 40 transports the rubber member 1a to the transport conveyor 60 of the joining table 50.

[0050] The rubber member 1a transported from the forming section 40 to the transport conveyor 60 is placed on the transport conveyor 60 so that the acute angle portion on the front side X1 in the first direction is transported by the longest first conveyor 61 in the transport section, and is transported toward the front side X1 in the first direction by multiple conveyors 61, 62, 63, and 64 that make up the transport conveyor 60.

[0051] The rubber member 1a transported forward in the first direction X1 is arranged as the rear rubber member 1ab to be joined to the front rubber member 1af so that the uncut edge 1a1 on the front side X1 in the first direction is located at the joining position P. As a result, the uncut edge 1a1 of the front rubber member 1af and the uncut edge 1a1 of the rear rubber member 1ab face each other at the joining position P.

[0052] The joining device 80 has a pair of joining rollers 81 that move along the non-cut edges 1a1 of the front rubber member 1af and the rear rubber member 1ab positioned at the joining position P, thereby pulling the ends of both rubber members 1af, 1ab together and joining the non-cut edges 1a1 together to form the tire belt B.

[0053] Then, when the joining of the rear rubber member 1ab to the front rubber member 1af is completed, the discharge device 90 moves the tire belt B forward in the first direction X1 by the length of the joined rear rubber member 1ab in the first direction X, and positions the uncut edge 1a1 on the rear side in the first direction of the front rubber member 1af at the joining position P.

[0054] Thereafter, as described above, the belt raw material 1 is cut to form the rubber member 1a, the rubber member 1a is transported to the joining position P, and the front rubber member 1af and the rear rubber member 1ab are joined together, thereby manufacturing the tire belt B.

[0055] (4) Effects In this embodiment, the conveyors 61, 62, 63, and 64 constituting the transport conveyor 60 are arranged in a stepped pattern such that the conveyor belts that are closer to one side Y1 in the second direction are closer to the front side X1 in the first direction. Therefore, by placing the parallelogram-shaped rubber member 1a on the transport conveyor 60 so that the acute angle portion on the front side X1 in the first direction is transported by the first conveyor 61, the driving force of the transport conveyor 60 is easily transmitted to the front portion of the rubber member 1a in the first direction, and positional deviation can be suppressed.

[0056] When the plurality of conveyors 61, 62, 63, and 64 are driven by the same driving device 65 as in this embodiment, it becomes easier to synchronize the plurality of conveyors 61, 62, 63, and 64, and it becomes easier to control the transport conveyor 60.

[0057] In the present embodiment, when the rear pulleys 61a, 62a, 63a, 64a and the front pulleys 61b, 62b, 63b, 64b provided on both sides of the conveying sections 61f1, 62f1, 63f1, 64f1 all have the same outer diameter, all of the conveyor belts 61f, 62f, 63f, 64f can rotate at the same speed, and even if the conveyor 60 is made up of multiple conveyors, the rubber member 1a can be prevented from moving in directions other than the first direction X.

[0058] In this embodiment, when the suction portions 61g, 62g, 63g, and 64g are arranged more densely on the front side X1 of the first direction than on the rear side X2 of the first direction of the conveying portions 61f1, 62f1, 63f1, and 64f1, the acute angle portion on the front side X1 of the first direction of the rubber member 1a is held in place, making it difficult for the rubber member 1a to move in any direction other than the first direction X.

[0059] In the present embodiment, when the rear pulleys 61a, 62a, 63a, 64a and the front pulleys 61b, 62b, 63b, 64b have a larger diameter at the center than at both ends in the direction of the rotation axis, the conveyor belts 61f, 62f, 63f, 64f can be prevented from moving in the width direction (second direction Y) while running.

[0060] In the present embodiment, when the joining position P is set so as to intersect with the opposing portions 70a, 70b, 70c, and 70d of the support portion 70 in a planar view, and the front rubber member 1af is positioned so as to cover a portion of the width of the conveyor belts 61f, 62f, 63f, and 64f, the transport conveyor 60 can apply a driving force to the rear rubber member 1ab until just before the uncut edge 1a1 of the rear rubber member 1ab reaches the joining position P, and the rear rubber member 1ab can be stably transported to the predetermined position. [Explanation of symbols]

[0061] 1...Belt raw material, 1a...Rubber member, 1a1...Uncut edge, 1a2...Cut edge, 10...(Comprising 20, 30, 40, 50, 80) Tire belt manufacturing apparatus, 20...Supply device, 21...Supply drum, 22...Supply conveyor, 30...Cutting device, 40...Forming section, 50...Joining table, 60...Transport conveyor, 60a...Support shaft, 61...First conveyor, 61a...Rear pulley, 61b...Front pulley, 61c...Drive pulley, 61d...Vent pulley, 61e...Adjusting pulley, 61f...Conveyor belt, 61f1...Transport section, 61g...Suction section, 62...Second conveyor, 62a...Rear pulley, 62b...Front pulley, 62c...Drive pulley, 62d...Vent pulley, 62e...Adjusting pulley, 62f...Conveyor belt, 62f1...conveying section, 62g...suction section, 63...third conveyor, 63a...rear pulley, 63b...front pulley, 63c...drive pulley, 63d...vent pulley, 63e...adjusting pulley, 63f...conveyor belt, 63f1...conveying section, 63g...suction section, 64...fourth conveyor, 64a...rear pulley, 64b...front pulley, 64c...drive pulley, 64d...vent pulley, 64e...adjusting pulley, 64f...conveyor belt, 64f1...conveying section, 64g...suction section, 65...drive device, 65a...drive shaft, 70...supporting section, 80...joining device, 90...carrying-out device, B...tire belt, D...conveying direction, P...joining position, X...first direction, X1...first direction front side, X2...first direction rear side, Y...second direction

Claims

1. a joining table on which a parallelogram-shaped rubber member is placed and which moves the rubber member forward in a first direction; and a joining device which joins sides of the rubber member together, a joining device for joining a rear side edge portion in the first direction of the rubber member placed on the front side in the first direction of a joining position set on the joining table to a front side edge portion in the first direction of the rubber member placed on the rear side in the first direction of the joining position, the joining table includes a transport conveyor that moves the rubber member toward the front side in the first direction and transports it to the rear side of the joining position in the first direction, and a support portion that supports the rubber member placed on the front side of the joining position in the first direction, The tire belt manufacturing device, wherein the transport conveyor includes a plurality of conveyor belts extending in the first direction and arranged in a second direction perpendicular to the first direction, and the plurality of conveyor belts are arranged in a stepped pattern such that the conveyor belts arranged on one side of the second direction are located further forward in the first direction.

2. 2. The tire belt manufacturing apparatus according to claim 1, wherein a plurality of said conveyor belts are driven by the same driving device.

3. the transport conveyor includes a pulley disposed at each end of a transport section that transports the rubber member, for each of the plurality of conveyor belts; 2. The tire belt manufacturing apparatus according to claim 1, wherein the diameter of the pulleys is the same among the plurality of conveyor belts.

4. 2. The tire belt manufacturing device according to claim 1, wherein the rubber member placed on the front side of the joining position in the first direction is arranged so as to cover a portion of the width direction of the plurality of conveyor belts.

5. 2. The tire belt manufacturing device according to claim 1, wherein the transport conveyor has a plurality of suction portions that suction the rubber member and are spaced apart in the first direction, and the suction portions are arranged more densely on the front side in the first direction than on the rear side in the first direction.

6. the transport conveyor includes a pulley disposed at each end of a transport section that transports the rubber member, for each of the plurality of conveyor belts; 2. The tire belt manufacturing device according to claim 1, wherein the pulley has a diameter at a center portion in the rotational axis direction that is larger than the diameters at both ends in the rotational axis direction.

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