JP5968969B2 - Cylindrical member manufacturing apparatus and manufacturing method - Google Patents

Description

  The present invention relates to a cylindrical member manufacturing apparatus and a cylindrical member manufacturing method for manufacturing a cylindrical member by joining end portions of a band-shaped member.

  When forming a green tire, a band-shaped member made of rubber or the like is arranged in a cylindrical shape, and then the end of the band-shaped member is joined to manufacture the cylindrical member. Moreover, a raw tire is shape | molded by combining the various tire structural members containing a cylindrical member. Conventionally, a tire forming system for forming a raw tire by moving a forming drum that can be expanded in a toroidal shape is known as a raw tire forming apparatus (see Patent Document 1).

  By the way, in the apparatus which manufactures a cylindrical member with a forming drum, it is common to wind and join a strip | belt-shaped member, without moving a forming drum. In this case, first, the belt-shaped member supply device approaches the forming drum, and the belt-shaped member supplied from the supply device is wound around the molding drum. Next, the supply device moves away from the forming drum, the band-shaped member joining device approaches the forming drum, and the ends of the band-shaped member are joined by the joining device. Thereby, a strip | belt-shaped member is formed in a cylinder shape and a cylindrical member is manufactured.

  Thus, conventionally, the cylindrical member is manufactured by fixing the position of the forming drum and moving the supply device and the joining device by the moving devices. However, when the supply device and the joining device move, a plurality of moving devices are required. Therefore, the manufacturing apparatus for the cylindrical member becomes large and the structure of the manufacturing apparatus becomes complicated. Moreover, since the operation | movement which manufactures a cylindrical member becomes complicated, the effort and time for manufacturing a cylindrical member increase. As a result, the cost required for manufacturing the cylindrical member increases. In addition, each time the cylindrical member is manufactured, the position of the supply device and the position of the joining device must be adjusted to a predetermined position by the moving device. At that time, since the alignment becomes complicated according to the number of moving devices, it is difficult to manufacture the cylindrical member with high accuracy.

JP 2009-160949 A

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to easily manufacture a cylindrical member and reduce the cost required for manufacturing the cylindrical member.

The present invention relates to a cylindrical member manufacturing apparatus for manufacturing a cylindrical member by joining a front end portion and a rear end portion of a band-shaped member, and a supply device that supplies the band-shaped member, and a supply position of the band-shaped member by the supply device And a movable forming drum around which the belt-like member supplied from the supply device is wound, and a joining device for joining the front end portion and the rear end portion of the belt-like member wound around the molding drum at the joining position of the belt-like member And a cylindrical member receiving position set between the supply position and the joining position, receiving the cylindrical member from the molding drum, and conveying the cylindrical member, and the molding drum protruding sideways A moving device that moves while being supported, and moves the forming drum to the supply position, moves the forming drum around which the belt-like member is wound from the supply position to the joining position, and places the cylindrical member Is manufactured A moving device arranged in the receiving position the forming drum by moving from the joining position and, when the forming drum is arranged at the joining position, the first and second supporting members for supporting both ends of the formed shape drum, And a joining position is set at a position lower than the supply position, and a receiving position is set between the supply position and the joining position and at a position higher than the supply position and the joining position. Device.
The present invention also relates to a method for manufacturing a cylindrical member in which a front end portion and a rear end portion of a band-shaped member are joined to manufacture a cylindrical member, wherein the band is formed by a supply device by moving a forming drum by a moving device. A step of disposing the belt-like member around the forming drum, a step of supplying the belt-like member to the forming drum by the supplying device, a step of winding the belt-like member around the forming drum, and a moving device projecting the forming drum to the side. It moved from the feed position while supporting state, placing the bonding position of the belt-shaped member by bonding apparatus is set at a position lower than the supply position, when placing the molding drum at the joining position, forming shapes drum A step of supporting both ends of the belt-like member by the first and second support members, a step of joining the front end portion and the rear end portion of the belt-shaped member wound around the forming drum by the joining device at the joining position, By moving the molding drum on which the cylindrical member is manufactured from the joining position, the cylindrical member by the conveying device set between the supply position and the joining position and at a position higher than the supply position and the joining position. It is a manufacturing method of a cylindrical member which has the process of arrange | positioning in a receiving position, the process of arrange | positioning a conveying apparatus in the receiving position of a cylindrical member, and the process of receiving and conveying a cylindrical member from a forming drum with a conveying apparatus.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to manufacture a cylindrical member easily, the cost which manufactures a cylindrical member can be reduced.

It is a side view which shows the manufacturing apparatus of the cylindrical member of this embodiment. It is a figure which shows the supply apparatus which supplies a strip | belt-shaped member. It is a figure which shows the moving apparatus of a forming drum. It is a front view which shows the joining apparatus of a strip | belt-shaped member. It is a figure which expands and shows a butt | matching means. It is a front view which shows the butt | matching means pressed on the strip | belt-shaped member. It is a front view which shows the conveying apparatus of a cylindrical member.

An embodiment of a manufacturing apparatus and a manufacturing method for a cylindrical member of the present invention will be described with reference to the drawings.
In the tubular member manufacturing apparatus of the present embodiment (hereinafter simply referred to as a manufacturing apparatus), a belt-like member is wound around a forming drum, and the front end portion and the rear end portion of the belt-like member are joined. Thereby, a strip | belt-shaped member is shape | molded in cylinder shape (here cylindrical shape), and the cylindrical member (here cylindrical member) which has a junction part is manufactured. The front end portion and the rear end portion of the belt-shaped member are a front end portion and a rear end portion of the belt-shaped member that are wound around the forming drum.

FIG. 1 is a side view showing the manufacturing apparatus of the present embodiment, and shows a schematic configuration of the manufacturing apparatus.
As shown in the figure, the manufacturing apparatus 1 includes a feeding device 10 for the belt-shaped member 2, a movable molding drum 3, a moving device 20 for the molding drum 3 (shown by a dotted line in FIG. 1), and a joining device for the belt-shaped member 2. 30, a conveying device 50 for the cylindrical member 4 (partly indicated by a dotted line in FIG. 1), and a control device 5. The manufacturing apparatus 1 is controlled by the control device 5 to execute an operation for manufacturing the cylindrical member 4.

  At the time of manufacturing the cylindrical member 4, the supply device 10 and the joining device 30 do not move, but the cylindrical forming drum 3 moves in the manufacturing device 1. That is, the positions of the supply device 10 and the joining device 30 are fixed in the manufacturing apparatus 1. The supply device 10 and the joining device 30 are arranged apart from each other, and the forming drum 3 is moved from the supply device 10 to the joining device 30 by the moving device 20. In the forming drum 3 after the movement, the belt-like member 2 is wound and joined.

  The belt-like member 2 of the present embodiment is a belt-like rubber member, and is formed into a cylindrical shape when a green tire is molded. The rubber member is a member made only of rubber (unvulcanized rubber) or a member made of rubber and another member, and is disposed in the raw tire in a cylindrical state. Moreover, the strip | belt-shaped member 2 is a tire structural member, combines with another tire structural member, and becomes a part of raw tire. Here, the belt-like member 2 is a belt-like rubber-covered member in which a reinforcing cord is covered with rubber. The belt-like member 2 is used as a carcass member (carcass ply) for forming a green tire and is provided in the green tire. A plurality of reinforcing cords arranged in parallel are arranged along the width direction of the belt-like member 2 and covered with rubber. Only the belt-like member 2 (rubber covering member) is wound around the molding drum 3 without arranging other tire constituent members (inner liner or the like) on the outer periphery of the drum 3, and the front and rear ends of the belt-like member 2 Join.

  The supply device 10 conveys the band-shaped member 2 toward the forming drum 3 and supplies the band-shaped member 2 to the forming drum 3. At that time, the forming drum 3 is moved by the moving device 20 and is arranged at a first position adjacent to the supply device 10 (a supply position P1 of the belt-like member 2). The supply position P <b> 1 is a position where the supply device 10 supplies the belt-shaped member 2 and a position where the belt-shaped member 2 is wound around the forming drum 3. The belt-like member 2 supplied from the supply device 10 is supplied to the forming drum 3 at the supply position P <b> 1 and is wound around the forming drum 3.

FIG. 2 is a view showing the supply device 10 for supplying the belt-like member 2. 2A to 2C show a supply process of the belt-like member 2.
As shown in the figure, the supply device 10 includes two transport tables 11 and 12, two holding devices 13 and 14, a cutting device 15, and a roll (not shown) around which the belt-shaped member 2 is wound. The belt-like member 2 is fed out from the roll and supplied in the longitudinal direction (supply direction K). The 1st and 2nd conveyance stands 11 and 12 are roller conveyors provided with a plurality of rotation rollers (not shown), and are arranged in a straight line with a gap. The belt-shaped member 2 is disposed on the first and second transport tables 11 and 12 and is transported in the supply direction K.

  The first and second holding devices 13 and 14 are disposed above and in the supply direction K above and behind the first and second transfer platforms 11 and 12. The first and second holding devices 13 and 14 are moved in the downward direction, the upward direction, the supply direction K, and the direction opposite to the supply direction K by a moving mechanism (not shown). Further, the first and second holding devices 13 and 14 suck and hold the front end portion 2A and the rear end portion 2B of the belt-like member 2 by the suction device 16, respectively. The suction device 16 includes a plurality of suction pads connected to the suction device, and holds the entire width direction of the belt-like member 2. In a state where the belt-like member 2 is held by the first and second holding devices 13 and 14, the first and second holding devices 13 and 14 move and the belt-like member 2 is conveyed.

  The cutting device 15 includes a cutter 15 </ b> A and a moving mechanism (not shown) that moves the cutter 15 </ b> A, and is disposed between the first transport table 11 and the second transport table 12. The cutter 15 </ b> A is moved between a position below the upper surface of the first and second transport tables 11 and 12 and a position above the upper surface by the moving mechanism. The belt-like member 2 is cut along the width direction by the cutter 15A that moves upward.

  The belt-like member 2 is supplied to the forming drum 3 by the supply device 10 and wound around the outer periphery of the forming drum 3 (see FIG. 1). Thereafter, the forming drum 3 is moved from the supply position P <b> 1 toward the joining device 30 by the moving device 20 installed on the side of the feeding device 10 and the joining device 30. The forming drum 3 is moved by the moving device 20 and is disposed at a second position adjacent to the joining device 30 (joining position P2 of the end portions 2A and 2B of the belt-like member 2). The forming drum 3 at the joining position P2 is indicated by a dotted line. The joining position P2 is a position where the joining device 30 joins the front end portion 2A and the rear end portion 2B of the band-like member 2. Here, the joining position P2 is set at a position lower than the supply position P1 and below the joining device 30. Accordingly, the forming drum 3 moves from the supply position P1 to the joining position P2, and is disposed below the joining device 30.

FIG. 3 is a view showing the moving device 20 of the forming drum 3. 3A is a side view of the moving device 20 corresponding to FIG. 1, and FIG. 3B is a plan view of the moving device 20 viewed from the X direction of FIG. 3A.
The moving device 20 includes a fixed member 21, a first guide rail 22, a first moving body 23, a second guide rail 24, and a second moving body 25 as illustrated. The forming drum 3 moves in the manufacturing apparatus 1 while being supported by the moving device 20 so as to protrude sideways.

  The fixing member 21 is a rectangular board and is fixed to a floor surface or the like. Two parallel first guide rails 22 are horizontally arranged on the upper surface of the fixing member 21 and attached to the fixing member 21. The first moving body 23 is attached to the linear first guide rail 22, and moves along the first guide rail 22 by driving of a driving device (not shown). The drive device has, for example, a ball screw mechanism coupled to the fixed member 21 and the first moving body 23 and a servo motor, and the ball screw mechanism is driven by the servo motor. Thereby, the 1st moving body 23 and the forming drum 3 move to a horizontal direction.

  Two parallel second guide rails 24 are vertically arranged on the side surface of the first moving body 23 protruding upward and are attached to the first moving body 23. The second moving body 25 is attached to the linear second guide rail 24 and moves along the second guide rail 24 by driving of a driving device (not shown). The drive device has, for example, a ball screw mechanism coupled to the first moving body 23 and the second moving body 25, and a servo motor, and the ball screw mechanism is driven by the servo motor. Thereby, the 2nd moving body 25 and the forming drum 3 move to a perpendicular direction.

  The second moving body 25 rotatably supports the rotating shaft 26 of the forming drum 3. The forming drum 3 is attached to the rotation shaft 26 and rotates integrally with the rotation shaft 26. The forming drum 3 rotates at a predetermined speed by the rotation shaft 26 being rotated by a rotation driving device (not shown) provided in the second moving body 25. The rotation driving device controls the rotation of the forming drum 3 to rotate the forming drum 3 by a predetermined rotation angle.

  The moving device 20 moves the rotating shaft 26 and the forming drum 3 by the movement of the first and second moving bodies 23 and 25. The forming drum 3 moves in the moving direction of the first and second moving bodies 23 and 25 and is arranged at a predetermined position. Further, as the second moving body 25 moves, the height of the forming drum 3 is changed. As described above, the moving device 20 includes the height changing device 27 that changes the height of the forming drum 3.

  The moving device 20 moves the forming drum 3 and arranges it at the supply position P1 of the belt-like member 2 by the supply device 3 and the joining position P2 of the belt-like member 2 by the joining device 30. The forming drum 3 at the joining position P2 is supported by the two support members 28 and 29. The first support member 28 is fixed to the first moving body 23 and moves together with the forming drum 3, and the second support member 29 is fixed to the joining position P2. When the molding drum 3 is disposed at the joining position P2, both ends of the molding drum 3 are supported by the first and second support members 28 and 29. In this state, the joining device 30 (see FIG. 1) joins the front end portion 2A and the rear end portion 2B of the belt-like member 2 on the outer periphery of the forming drum 3 at the joining position P2.

FIG. 4 is a front view showing the joining device 30 of the belt-like member 2, and also shows the forming drum 3 and the belt-like member 2 in the vicinity of the joining device 30.
As illustrated, the joining device 30 includes a piston / cylinder mechanism 32 fixed to a support 31, a movable member 33, and a butting means 40 provided on the lower surface of the movable member 33. The movable member 33 is attached to the piston / cylinder mechanism 32 and is disposed along the end portions 2 </ b> A and 2 </ b> B of the belt-like member 2. The piston / cylinder mechanism 32 moves the movable member 33 and the butting means 40 in the radial direction of the molding drum 3. The butting means 40 is disposed toward the front end 2A and the rear end 2B of the belt-like member 2, and is pressed against the front end 2A and the rear end 2B. The front end portion 2A and the rear end portion 2B of the band-like member 2 are butt-joined by the butt means 40.

FIG. 5 is an enlarged view showing the abutting means 40. 5A is a front view of the abutting means 40 corresponding to FIG. 4, and FIG. 5B is a bottom view showing a part of the abutting means 40 as seen from the Y direction of FIG. 5A. FIG. 6 is a front view showing the abutting means 40 pressed against the belt-like member 2.
The abutting means 40 includes a base 41 fixed to the movable member 33, a pair of attracting members 42 and 43, and two elastic members 44 as shown in the figure. The elastic member 44 is a member that elastically deforms (for example, rubber or an airtight container), and is provided between the base 41 and the pair of attracting members 42 and 43.

  The joining device 30 moves the butting means 40 and presses the pair of attracting members 42 and 43 (pressure members 42A and 43A) against the front end portion 2A and the rear end portion 2B of the belt-like member 2 (see FIG. 6). Accordingly, the plurality of pressure members 42A and 43A are displaced so as to rotate around the shaft members 42B and 43B, and the overlapping width H of the pressure members 42A and 43A gradually increases. At the same time, the elastic member 44 is crushed and elastically deformed by the pressure members 42A and 43A. The front end portion 2A and the rear end portion 2B of the belt-like member 2 are gradually approached and pressed against each other by the pressure applied from the plurality of pressure members 42A and 43A. That is, the front end portion 2A and the rear end portion 2B of the belt-like member 2 are attracted and abutted by the pair of attracting members 42 and 43. Further, the front end portion 2A and the rear end portion 2B are joined without a gap by the pressure of the pressure members 42A and 43A.

  The joining device 30 joins the front end 2 </ b> A and the rear end 2 </ b> B of the belt-like member 2 wound around the forming drum 3. At that time, the front end portion 2A and the rear end portion 2B are abutted and joined by the abutting means 40 without being overlapped. As a result, the belt-like member 2 is formed into a cylindrical shape, and the cylindrical member 4 is manufactured on the outer periphery of the forming drum 3. After joining the band-shaped member 2, the bonding apparatus 30 separates the pair of attracting members 42 and 43 from the band-shaped member 2. Along with this, the elastic member 44 is restored, and the plurality of pressure members 42A and 43A are displaced to positions before joining. In addition, the overlap width H gradually decreases, and the pair of attracting members 42 and 43 return to the original state (see FIG. 5).

  After the cylindrical member 4 is formed, the moving device 20 (see FIG. 1) moves the forming drum 3 from the joining position P2 toward the conveying device 50. The forming drum 3 is arranged at the third position (the receiving position P3 of the tubular member 4) by the moving device 20. The forming drum 3 at the receiving position P3 is indicated by a dotted line. The receiving position P3 is a position where the conveying device 50 receives the cylindrical member 4 from the molding drum 3, and is set between the supply position P1 and the joining position P2. Here, the receiving position P3 is set at a position intermediate between the supply position P1 and the joining position P2 and higher than the supply position P1 and the joining position P2. Therefore, the forming drum 3 is moved obliquely upward from the joining position P2 by the moving device 20, and is disposed at the receiving position P3 between the supply position P1 and the joining position P2.

FIG. 7 is a front view showing the conveying device 50 for the cylindrical member 4. The forming drum 3 and the cylindrical member 4 (shown by dotted lines in FIG. 7) are disposed inside the transport device 50.
As shown in the figure, the conveying device 50 includes a moving unit 52 installed on the conveying rail 51, an annular member 53 disposed above the moving unit 52, a plurality of holding members 54, and a driving unit for the holding member 54. 55. Two parallel transport rails 51 are installed from the receiving position P <b> 3 to the transport destination of the cylindrical member 4 to guide the moving unit 52. The moving unit 52 includes, for example, a motor and a rotating body that is rotated by the motor, and moves on the transport rail 51 by the rotating body. The transport device 50 is moved along the transport rail 51 by the moving unit 52.

  The plurality of holding members 54 are annularly arranged inside the annular member 53 and are driven by the drive unit 55 to move in the radial direction of the molding drum 3. The drive unit 55 includes, for example, an interlocking mechanism that moves the plurality of holding members 54 in conjunction with the operation of the piston / cylinder mechanism, and moves the plurality of holding members 54 away from the cylindrical member 4 and the cylindrical member. It moves between the positions which contact 4 outer periphery. The forming drum 3 and the cylindrical member 4 are arranged inside the plurality of holding members 54 by the movement of the conveying device 50. The plurality of holding members 54 have, for example, a plurality of suction pads (not shown) connected to the suction device, and hold the cylindrical member 4 by sucking the outer periphery of the cylindrical member 4. The conveyance apparatus 50 conveys the cylindrical member 4 held by the plurality of holding members 54 while maintaining the cylindrical shape.

  When the cylindrical member 4 is conveyed, the moving device 20 (see FIG. 1) moves the forming drum 3 and arranges it at the receiving position P3 of the cylindrical member 4 by the conveying device 50. At that time, the conveying device 50 is disposed at a position where it does not contact the moving molding drum 3. Next, the conveying device 50 moves along the axial direction of the forming drum 3 and is disposed at the receiving position P3. The forming drum 3 and the cylindrical member 4 are arranged in the transport device 50 at the receiving position P3 without contacting the transport device 50.

  Subsequently, the cylindrical member 4 is held by a plurality of holding members 54, and the molding drum 3 is reduced by an expansion / contraction means (not shown). Thereby, the cylindrical member 4 is removed from the forming drum 3 and transferred to the conveying device 50. The conveyance device 50 receives the cylindrical member 4 from the forming drum 3 and conveys the cylindrical member 4 to the conveyance destination. For example, the cylindrical member 4 is transported to the apparatus for the next manufacturing process by the transport apparatus 50 and delivered to the apparatus for the next manufacturing process.

Next, the manufacturing procedure of the cylindrical member 4 will be described.
First, the forming drum 3 is disposed at the supply position P <b> 1 of the band-shaped member 2 by the supply device 10, and the band-shaped member 2 is supplied to the forming drum 3 by the supply device 10. The belt-like member 2 supplied from the supply device 10 is wound around the forming drum 3, and the belt-like member 2 is arranged in a cylindrical shape. Next, the forming device 3 is moved from the supply position P <b> 1 by the moving device 20 and is arranged at the joining position P <b> 2 of the belt-like member 2 by the joining device 30. At that time, the moving device 20 arranges the molding drum 3 at the joining position P2 at a position lower than the molding drum 3 at the receiving position P3 and the supply position P1.

  At the joining position P2, the joining device 30 joins the front end portion 2A and the rear end portion 2B of the belt-like member 2 wound around the forming drum 3 to manufacture the tubular member 4. Subsequently, the forming device 3 is moved from the joining position P <b> 2 by the moving device 20 and is arranged at the receiving position P <b> 3 of the cylindrical member 4 by the conveying device 50. The cylindrical member 4 is received from the molding drum 3 and conveyed by the conveying device 50. The cylindrical member 4 is conveyed to the next manufacturing process, for example, and delivered to the next manufacturing process.

  After the cylindrical member 4 is conveyed, the forming drum 3 is moved toward the supply device 10 by the moving device 20 and is arranged at the supply position P1. Thus, the moving device 20 moves the molding drum 3 from each position P1, P2, P3 to the next position P1, P2, P3, and arranges the molding drum 3 in order at each position P1, P2, P3. The manufacturing apparatus 1 performs each operation | work with respect to the molding drum 3 of each position P1, P2, and P3, and manufactures the cylindrical member 4 repeatedly.

  As described above, in the present embodiment, the forming drum 3 is moved by the moving device 20 to wind and bond the belt-like member 2, so that the moving device for the supply device 10 and the bonding device 30 is not necessary. Therefore, the moving device in the manufacturing apparatus 1 can be integrated into the moving device 20 for the forming drum 3, and the number of moving devices and actuators can be reduced. Accordingly, the overall size of the manufacturing apparatus 1 can be reduced, and the structure of the manufacturing apparatus 1 can be simplified. Moreover, since the operation | movement which manufactures the cylindrical member 4 becomes simple, the effort and time for manufacturing the cylindrical member 4 can be reduced. Therefore, the cylindrical member 4 can be easily manufactured, and the cost required for manufacturing the cylindrical member 4 can be reduced. In addition, since the forming drum 3 is moved between the supply position P1 and the joining position P2, it is possible to save space and simplify the manufacturing apparatus 1 as compared with the case where the supply apparatus 10 and the joining apparatus 30 are moved. it can.

  Further, since the molding drum 3 is arranged at each of the positions P1, P2, and P3 by one moving device 20, the positioning of the molding drum 3 can be easily performed. As a result, the accuracy of positioning of the forming drum 3 can be increased, so that the winding and joining accuracy of the belt-like member 2 can be improved. Moreover, the cylindrical member 4 can be manufactured simply and accurately. By joining the front end 2 </ b> A and the rear end 2 </ b> B of the band-like member 2 to each other, the accuracy of the joining portion of the tubular member 4 on the forming drum 3 can be improved.

  By arranging the molding drum 3 at the receiving position P3 by the moving device 20, the cylindrical member 4 can be easily transferred and conveyed. Moreover, the cylindrical member 4 can be smoothly delivered to the next manufacturing process by delivering the cylindrical member 4 from the forming drum 3 to the conveying device 50 at the receiving position P3. When the molding drum 3 at the joining position P2 is arranged at a position lower than the molding drum 3 at the receiving position P3, the belt-like member 2 can be easily joined by the joining device 30. At the same time, since the position of the bonding apparatus 30 is lowered, the bonding apparatus 30 can be stably disposed. Since the height of the molding drum 3 at the time of joining becomes lower than the height of the molding drum 3 at the time of movement, the belt-like member 2 can be joined in a more stable state. By setting the receiving position P3 between the supply position P1 and the joining position P2, it is possible to save the space of the manufacturing apparatus 1.

  When the inner member (for example, inner liner) of the belt-like member 2 is disposed between the forming drum 3 and the belt-like member 2, the inner member may be affected by the joining of the belt-like member 2. Further, when the front end 2A and the rear end 2B of the belt-like member 2 are in close contact with the inner member, the joining of the front end 2A and the rear end 2B may be affected. On the other hand, in this embodiment, only the belt-like member 2 is wound around the forming drum 3 and joined. Therefore, the front end portion 2A and the rear end portion 2B of the tubular member 2 can be reliably joined without affecting the inner member.

  As described above, the belt-like member 2 is a carcass member provided in the raw tire. By joining only the carcass member on the molding drum 3 with no other member (inner liner or the like) inside the carcass member in the radial direction, the front end portion and the rear end portion of the carcass member can be accurately joined. As a result, the weight of the tire can be reduced, and the quality of the tire can be improved.

  In the present embodiment, only the carcass member that is the belt-like member 2 is wound around the forming drum 3, the front end portion and the rear end portion of the carcass member are joined (here, butt joining), and the carcass member is molded into a cylindrical shape. To do. The carcass member is a single member combined with other tire constituent members of the raw tire in a state of being formed into a cylindrical shape alone, and is transported by the transport device 50 in a cylindrical state. After joining the belt-like carcass members, the green carcass member is combined with other tire constituent members to form a green tire.

  On the other hand, according to the manufacturing apparatus 1 (manufacturing method) of this embodiment, various strip-shaped members 2 can be joined. That is, the belt-like member 2 may be a tire constituent member (for example, a belt member or a tread member) other than the carcass member. Moreover, the strip | belt-shaped member 2 should just be a member wound around the shaping | molding drum 3 and joined irrespective of thickness, a width | variety, cross-sectional shape, and a structure.

  DESCRIPTION OF SYMBOLS 1 ... Manufacturing apparatus of a cylindrical member, 2 ... Band-shaped member, 2A ... Front end part, 2B ... Rear end part, 3 ... Molding drum, 4 ... Cylindrical member, 5. ..Control device, 10 ... feed device, 11 ... first transfer table, 12 ... second transfer table, 13 ... first holding device, 14 ... second holding Device: 15 ... Cutting device, 16 ... Suction device, 20 ... Moving device, 21 ... Fixed member, 22 ... First guide rail, 23 ... First moving body, 24 ... 2nd guide rail, 25 ... 2nd moving body, 26 ... Rotating shaft, 27 ... Height changing device, 28 ... 1st support member, 29 ... Second support member, 30 ... joining device, 31 ... support, 32 ... piston / cylinder mechanism, 33 ... movable member, 40 ... butting means, 41 ... bay , 42, 43 ... attracting member, 44 ... elastic member, 50 ... conveying device, 51 ... conveying rail, 52 ... moving part, 53 ... annular member, 54 ... Holding member, 55... Drive unit, K... Supply direction, P1... Supply position, P2.

Claims (10)

A tubular member manufacturing apparatus for manufacturing a tubular member by joining the front end portion and the rear end portion of a belt-shaped member,
A supply device for supplying a belt-shaped member;
A movable forming drum which is disposed at a supply position of the belt-shaped member by the supply device and around which the belt-shaped member supplied from the supply device is wound;
A joining device for joining the front end portion and the rear end portion of the belt-like member wound around the forming drum at the joining position of the belt-like member;
A conveying device that is arranged at a receiving position of the cylindrical member set between the supply position and the joining position, receives the cylindrical member from the forming drum, and conveys the cylindrical member;
A moving device that moves while supporting the forming drum in a state of projecting sideways, moves the forming drum to the supply position, and moves the forming drum around which the belt-shaped member is wound from the supply position to the joining position. A moving device that moves the molding drum on which the cylindrical member is manufactured from the joining position and places it in the receiving position;
When the forming drum is arranged at the joining position, comprising a first and second supporting members for supporting both ends of the formed shape drum, and
The joining position is set to a position lower than the supply position,
A cylindrical member manufacturing apparatus in which a receiving position is set at a position intermediate between a supply position and a joining position and higher than a supply position and a joining position. In the manufacturing apparatus of the cylindrical member according to claim 1,
An apparatus for producing a cylindrical member having first and second holding devices that move while the supply device holds the front end portion and the rear end portion of the belt-like member and convey the belt-like member. In the manufacturing apparatus of the cylindrical member according to claim 1 or 2,
An apparatus for manufacturing a cylindrical member, wherein the moving device arranges the molding drum at the joining position at a position lower than the molding drum at the receiving position and the supply position. In the manufacturing apparatus of the cylindrical member according to any one of claims 1 to 3,
An apparatus for manufacturing a cylindrical member, wherein the joining device has a butt means for butt-joining the front end portion and the rear end portion of the belt-like member. In the manufacturing apparatus of the cylindrical member according to any one of claims 1 to 4,
The manufacturing apparatus of the cylindrical member whose belt-shaped member is a carcass member provided in a green tire. It is a manufacturing method of a cylindrical member that manufactures a cylindrical member by joining the front end portion and the rear end portion of the belt-shaped member,
A step of moving the molding drum by the moving device and disposing it at the supply position of the belt-shaped member by the supply device;
Supplying the band-shaped member to the forming drum by the supply device, and winding the band-shaped member around the forming drum;
The moving device is moved from the supply position while supporting the forming drum around which the belt-like member is wound in a state of protruding sideways, and is arranged at the joining position of the belt-like member by the joining device set at a position lower than the supply position. And a process of
When placing the molding drum at the joining position, the ends of the formed shape drum, a step of supporting the first and second support members,
At the joining position, a step of joining the front end portion and the rear end portion of the belt-shaped member wound around the forming drum by a joining device;
The moving drum moves the molding drum on which the cylindrical member is manufactured from the joining position, and is in the middle of the feeding position and the joining position, and the cylindrical shape by the conveying device set at a position higher than the supply position and the joining position. Placing the member at the receiving position;
Arranging the transport device at the receiving position of the cylindrical member;
Receiving and transporting the cylindrical member from the forming drum by the transport device; and
The manufacturing method of the cylindrical member which has this. In the manufacturing method of the cylindrical member described in Claim 6,
The step of winding the belt-shaped member around the forming drum includes a step of holding the front end portion and the rear end portion of the belt-shaped member by the first and second holding devices of the supply device, and moving the first and second holding devices. And a step of conveying the belt-shaped member. In the manufacturing method of the cylindrical member described in Claim 6 or 7,
The method of manufacturing a cylindrical member, wherein the step of arranging at the joining position includes a step of arranging the molding drum at the joining position at a position lower than the molding drum at the receiving position and the supply position. In the manufacturing method of the cylindrical member according to any one of claims 6 to 8,
The method of manufacturing a tubular member, wherein the step of joining the front end portion and the rear end portion includes a step of butt joining the front end portion and the rear end portion of the band-shaped member. In the manufacturing method of the cylindrical member according to any one of claims 6 to 9,
The manufacturing method of the cylindrical member whose belt-shaped member is a carcass member provided in a green tire.

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