JP2016198887A - Apparatus for manufacturing ply for tire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently form various plies for a tire different in angle θ while miniaturizing an apparatus and an installation space.SOLUTION: A joint device 5 for joining side edge parts Se of strip pieces S1 to be cut in the state of making them sequentially overlap each other on a sticking conveyor 4 is provided. The joint device 5 includes: second chuck means 20 having a pair of second chucks 31 for gripping the strip piece S1; revolving means 21 for revolving the second chuck means 20 around a shaft center i; and first lifting/lowering means 22 for lowering the second chucks 31 after revolution to stick the strip piece S1 and join it to the strip piece S1 on the sticking conveyor.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a tire ply manufacturing apparatus for forming a tire ply by sequentially overlapping and joining side edges of strip pieces cut from a long strip-shaped strip on a sticking conveyor.

  In recent years, in order to eliminate the occurrence of intermediate members when forming a tire ply such as a belt ply, the side edges of strip pieces cut from a long strip-like strip are sequentially overlapped and joined on a sticking conveyor. Thus, an apparatus for forming a tire ply has been proposed (see, for example, Patent Document 1).

  In the apparatus, as conceptually shown in FIG. 12, an affixing conveyor a, a supply means d for supplying a predetermined amount of strip c on the affixing conveyor a at an angle θ from its lateral position b, and the supply A cutting tool e which forms a strip piece c1 by cutting the supply part of the strip c by means d along the side edge of the affixing conveyor a. And the ply f for tires is formed by the side edge part of the strip piece c1 cut | disconnected, and the side edge part of the strip piece c1 supplied previously on the sticking conveyor a overlapping and joining sequentially. .

  However, in a belt ply or the like, the angle θ is variously set according to tire specifications. Therefore, in the case of the apparatus having the above structure, it is necessary to change the arrangement of the sticking conveyor a in accordance with the setting of the angle θ, and much labor and time are required for the changing work.

  In Patent Document 2 below, a ply manufacturing apparatus is proposed in which the cutting angle by the cutting means and the arrangement angle of the sticking conveyor can be adjusted, and the changing operation is easy. In the case of this apparatus, adjustment is performed by swiveling a long sticking conveyor about its one end in the length direction as a fulcrum. Therefore, the work is large-scale, and the improvement of the efficiency of the change work is not sufficiently achieved. In addition, a large space is required for turning, and there is a problem that the apparatus and installation space are increased.

JP 2001-121622 A JP 2004-17499 A

  Accordingly, the present invention provides a tire ply manufacturing apparatus that can efficiently form various tire plies having different angles θ while eliminating the need to adjust the arrangement angle of the affixing conveyor and reducing the size of the apparatus and installation space. Is an issue.

The present invention is a tire ply manufacturing apparatus for forming a tire ply by sequentially overlapping and joining side edges of strip pieces cut from a long strip-shaped strip on a sticking conveyor,
The strips carried in the length direction are cut at predetermined cutting lengths from the length direction front end side at the cutting position P1, and strip pieces whose cutting edges are inclined at an angle θ with respect to the length direction are sequentially formed. Cutting tool,
A moving tool having first chuck means for gripping the cut strip piece and moving the strip piece in the length direction to the delivery position;
An affixing conveyor having an unloading direction different from the loading direction;
And a joining tool for joining the strip piece received at the delivery position to the strip piece on the sticking conveyor,
The connector is
Second chuck means having a pair of second chucks for receiving and gripping strip pieces from the first chuck means at the delivery position;
Swiveling means capable of swiveling the second chuck means about a vertical axis i until the cutting edge of the received strip piece is in a swiveling state parallel to the carry-out direction of the application conveyor;
After turning, the second chuck is lowered, and the side edge portion in the unloading direction of the strip piece to be gripped is overlapped and joined to the side edge portion on the rear side in the unloading direction of the strip piece on the sticking conveyor. And a lifting means.

  In the tire ply manufacturing apparatus according to the present invention, the joint lowers the second chuck means prior to turning to prevent the collision between the first chuck means and the second chuck means during turning. It is preferable to provide the lifting means.

  In the tire ply manufacturing apparatus according to the present invention, the second chuck means can be held so as to be movable toward and away along the length direction of the strip piece and can hold the strip piece in the thickness direction. It is preferable to provide a pair of second chucks and pull the strip pieces to be gripped on both sides in the length direction by the movement of the second chucks in the separating direction.

  In the tire ply manufacturing apparatus according to the present invention, the second chuck includes a main roller pivotally supported on the upper surface of the strip piece so as to roll in the length direction, and the strip piece between the main roller. It is preferable to provide a rollable auxiliary roller that is sandwiched and held.

  In the tire ply manufacturing apparatus according to the present invention, the auxiliary roller can be repositioned between a vertically aligned state aligned below the main roller and a horizontally aligned state aligned sideways with the main roller. In the vertically aligned state, the strip piece is received from the first chuck means by being separated from the main roller, and in the horizontally aligned state, the strip piece is preferably sandwiched between the main roller and held. .

  In the tire ply manufacturing apparatus according to the present invention, the cutting tool is disposed at the cutter disposed at the cutting position P1 and the rear holding position P2 on the rear side and in the vicinity of the cutting position P1 in the loading direction. It is preferable to provide a cutting side chuck capable of gripping the strip in the thickness direction at the position P2.

In the tire ply manufacturing apparatus according to the present invention, the first chuck means can grip and hold the front end portion and the rear end portion of the strip piece in the thickness direction and can move forward and backward in the loading direction. Has one chuck,
The first front chuck returns to an initial position P3 that is rearward of the cutting position P1 in the loading direction and different from the rear holding position P2 after the strip piece is transferred at the transfer position. By pulling the strip from the cutting position P1 by gripping the strip at P3 and moving the distance corresponding to the cutting length forward in the loading direction,
After pulling out the strip, prior to cutting with the cutting tool, the first chuck after the grip grips the strip at the front holding position P4 in the forward direction in the loading direction and near the cutting position P1, and It is preferable that the cutting chuck grips the strip at the rear holding position P2.

  As described above, in the present invention, the connector includes the second chuck means, the turning means, and the first elevating means. The second chuck means has a pair of second chucks for receiving and gripping the strip pieces at the delivery position. The swiveling means swivels the second chuck means around a vertical axis i until the cutting edge of the received strip piece is in a swiveling state parallel to the carrying-out direction of the sticking conveyor. In addition, the first elevating means lowers each second chuck after turning, and sets the side edge on the front side of the strip piece to be gripped in the carry-out direction on the side edge on the rear side in the carry-out direction of the strip piece on the sticking conveyor. Overlay and join to.

  Therefore, even for various strip pieces having different angles θ, the tire ply can be formed by sequentially joining on the affixing conveyor without adjusting the arrangement angle of the affixing conveyor. That is, various tire plies having different angles θ can be efficiently formed while downsizing the apparatus and the installation space.

It is a perspective view which shows one Example of the ply manufacturing apparatus for tires of this invention. It is a perspective view which expands and shows a moving tool. It is a perspective view which expands and shows a joining tool. It is an operation | movement figure which illustrates notionally operation | movement of a 1st chuck | zipper means. It is an operation | movement figure which illustrates notionally operation | movement of a 1st chuck | zipper means. (A), (B) is a side view which shows the structure of the front and back 1st chuck | zipper and a cutting | disconnection side chuck | zipper. It is a side view which shows delivery of the strip piece between a 1st chuck means and a 2nd chuck means. It is a perspective view which shows a 2nd chuck | zipper with the 1st raising / lowering means. It is a side view of FIG. (A)-(C) are the operation | movement diagrams which illustrate the holding | grip operation | movement of a 2nd chuck notionally. It is sectional drawing which shows a strip piece and its joining. It is a top view which shows notionally the conventional ply manufacturing apparatus for tires.

Hereinafter, embodiments of the present invention will be described in detail.
As shown in FIG. 1, the tire ply manufacturing apparatus 1 (hereinafter referred to as “ply manufacturing apparatus 1”) of the present embodiment includes a cutting tool 2, a moving tool 3, an affixing conveyor 4, and a joining tool 5. Have. Then, the side edge portions Se of the strip pieces S1 cut from the long strip S are sequentially overlapped and joined on the affixing conveyor 4, thereby forming a tire ply F (for example, a belt ply).

  The strip S has a long belt shape in which an array of tire cords A aligned in the length direction is covered with a topping rubber B as shown in cross section in FIG. In this example, an ear C having a small thickness is formed on one side edge Se. And using this ear | edge part C, the side edge parts Se of strip piece S1 are mutually overlap | superposed and joined.

  As shown in FIG. 2, the cutting tool 2 cuts the strip S carried in the length direction at predetermined cutting lengths from the front end side in the length direction at the cutting position P1, thereby removing the strip piece S1. Are sequentially formed. The cutting edge E of the strip S is inclined at an angle θ with respect to the length direction. This angle θ corresponds to the cord angle of the tire cord A with respect to the circumferential direction in the tire.

  The cutting tool 2 of this example includes a cutter 6 disposed at a cutting position P1 and a cutting side chuck 7 disposed at a rear holding position P2 on the rear side and in the vicinity in the loading direction X with respect to the cutting position P1. . The cutter 6 is not particularly restricted and various conventional ones can be adopted. Preferably, a structure capable of adjusting the angle θ of cutting, for example, a structure described in Patent Document 2 can be suitably used.

  As shown in FIG. 6A, the cutting-side chuck 7 has a known structure including a pair of chuck arms 8 that can tilt up and down, and the strip S is sandwiched between the chuck arms 8 and 8 in the thickness direction. Grip with This cutting side chuck 7 is arranged on one side in the width direction of the strip S (right side in the figure), and is attached to the frame K 1 via the cylinder 9. The cutting side chuck 7 can move back and forth in the width direction between two positions of the advance position Qa for gripping the strip S and the retreat position Qb waiting on one side in the width direction by the expansion and contraction of the cylinder 9.

  As shown in FIG. 5, the moving tool 3 has first chuck means 10 for gripping the cut strip piece S1. Then, the gripped strip piece S1 is moved in the length direction to the delivery position U. The first chuck means 10 of the present example includes a first chuck 10F before gripping the front end portion of the strip piece S1 in the thickness direction, and a first chuck after gripping the rear end portion in the thickness direction. It has 10R.

  As shown in FIG. 2, the front and rear first chucks 10 </ b> F and 10 </ b> R are each arranged on the other side in the width direction of the strip S. The front and rear first chucks 10F, 10R are supported by the moving means 11, 12 so as to be movable in the loading direction X.

  The moving means 11 and 12 in this example each include a ball screw mechanism. Specifically, the moving means 11 is guided to the rail 11a, for example, a rail 11a that is supported by the frame K2 and extends in the loading direction X, a ball screw shaft 11b that is rotatably supported by the frame K2 and extends parallel to the rail 11a. And a movable table 11c movable in the loading direction X. The moving base 11c is provided with a nut portion 11c1 that is screwed with the ball screw shaft 11b. The ball screw shaft 11b is rotationally driven by a motor M1 connected to one end thereof.

  The moving means 12 includes a rail 12a supported by the frame K2 and extending in the loading direction X, a ball screw shaft 12b rotatably supported by the frame K2 and extending in parallel with the rail 12a, and guided by the rail 12a in the loading direction. And a movable table 12c movable to X. The moving base 12c is provided with a nut portion 12c1 that is screwed with the ball screw shaft 12b. The ball screw shaft 12b is rotationally driven by a motor M1 connected to one end thereof.

  In this example, the rail 12a is commonly used with the rail 11a, and the ball screw shafts 11b and 12b are arranged on both sides in the width direction of the rail 11a (common with the rail 12a). Thereby, the moving means 11 and 12 are comprised compactly.

  As shown in FIGS. 6A and 6B, the front and rear first chucks 10F and 10R have substantially the same configuration as the cutting-side chuck 7 in this example, and the strip S ( And the strip piece S1) is sandwiched and held in the thickness direction. The front first chuck 10F is attached to the moving base 11c via the first and second cylinders 14 and 15, and the rear first chuck 10R is attached to the moving base 12c. Attach through. The first cylinder 14 is supported by the movable bases 11c and 12c, respectively. The second cylinder 15 is supported by a support plate 16 that is attached to the rod end of the first cylinder 14.

  As a result, the front and rear first chucks 10F and 10R are respectively connected to the first forward position Qc1 that grips the strip S (and the strip piece S1), for example, by the expansion and contraction of the first cylinder 14, and the other side in the width direction (same It can move forward and backward in the width direction between the standby position Qd on the left side in the figure. As representatively shown in the first chuck 10R later in FIG. 7, by further expanding and contracting the second cylinder 15, the front and rear first chucks 10F and 10R are moved to the first advance position Qc1 and the strip. The piece S1 can be moved forward and backward in the width direction between the second advancement position Qc2 for delivering the piece S1 to the second chuck means 20. That is, the first chucks 10F and 10R can move forward and backward in the width direction at the three positions of the backward position Qd and the first and second forward positions Qc1 and Qc2.

  Further, after the delivery of the strip piece S1 at the delivery position U (shown in FIGS. 5 and 7), as shown in FIG. 4, the front first chuck 10F returns to the initial position P3 and the initial position P3. The strip S is gripped. The initial position P3 is a position in the loading direction X that is behind the cutting position P1 in the loading direction X and different from the rear holding position P2, and in this example, is set to the rear side from the rear holding position P2. The

  Further, after the cutting side chuck 7 releases the grip and waits at the retracted position Qb, the first chuck 10F moves the distance L corresponding to the cutting length to the front side in the loading direction X. Thereby, the strip S can be pulled out from the cutting position P1 by the cutting length.

  Further, after this drawing, prior to cutting by the cutting tool 2, the rear first chuck 10R grips the strip S at the front holding position P4, and the cutting side chuck 7 grips the strip S at the rear holding position P2. To do. The front holding position P4 means a position in the carry-in direction X in front of and in the carry-in direction X with respect to the cutting position P1. As described above, since the strip S is cut in the vicinity of the cutting position P1 and in the state of holding the front and rear (the front holding position P4 and the rear holding position P2), the cutting can be performed with high accuracy. Further, as shown in FIG. 5, even after cutting, the front end portion and the rear end portion of the strip piece S1 and the front end portion of the strip S can be held as they are, so that deformation or misalignment due to changeover can be prevented. The “near” is not particularly restricted, but a distance from the cutting position P1 of 100 mm or less is preferable.

  As shown in FIG. 1, the affixing conveyor 4 has an unloading direction J that is different from the loading direction X, and the strips S <b> 1 on the transport surface are spaced according to their width (strip along the cutting edge E). It corresponds to the width of the piece S1). The joining tool 5 receives the strip piece S1 from the moving tool 3 at the delivery position U, and joins the received strip piece S1 to the strip piece S1 on the affixing conveyor 4.

  As shown in FIG. 3, the connector 5 includes a second chuck means 20, a turning means 21, and a first elevating means 22.

  The second chuck means 20 has a pair of second chucks 31, 31 that receive and grip the strip piece S <b> 1 from the first chuck means 10 at the delivery position U.

  Further, the turning means 21 turns the second chuck means 20 around the vertical axis i until the turning edge Y in which the cutting edge E of the received strip piece S1 is parallel to the carrying-out direction J of the affixing conveyor 4.

  Moreover, the 1st raising / lowering means 22 lowers each 2nd chuck | zipper 31,31 after turning, and, as shown in FIG. 11, the side edge part Se of the front side of the carrying-out direction J of the strip piece S1 to hold | grip is affixing conveyor. 4 on the side edge Se on the rear side of the strip piece S1 in the carry-out direction J.

  As shown in FIG. 3, the connector 5 of this example lowers the second chuck means 20 prior to turning, and prevents the first chuck means 10 and the second chuck means 20 from colliding with each other during turning. Two lifting means 24 are further provided. Specifically, the second lifting / lowering means 24 is, for example, a lifting / lowering unit that straddles between the cylinder 27 that is flanged via a guide 26 to a pair of support columns 25 rising from the frame K2 and the upper end of the rod 27a of each cylinder 27. A table 28 is provided. The upper ends of the guide shafts 29 parallel to the rods 27a are attached to both ends of the lifting / lowering base 28. The guide shaft 29 passes through a guide hole provided in the guide 26, whereby the elevator 28 is guided vertically.

  The turning means 21 of this example includes a rotating shaft 30 whose upper end is pivotally supported at the center of the lifting platform 28. Then, for example, by controlling a motor (not shown) that is gear-coupled to the rotary shaft 30, the second chuck means 20 that is attached to the lower end of the rotary shaft 30 can be freely swung around the axis i of the rotary shaft 30. .

  The second chuck means 20 includes a pair of second chucks 31 and 31 that can hold the strip piece S1 in the thickness direction, and the pair of second chucks 31 and 31 along the length direction of the strip piece S1. And holding means 32 for holding it so as to be able to move close to and away from each other.

  The holding means 32 includes a horizontal support frame 32a attached to the lower end of the rotary shaft 30, a rail 32b (shown in FIG. 9) provided on, for example, the lower surface of the support frame 32a and extending in the length direction of the strip piece S1. It includes a ball screw shaft 32c that is rotatably supported by the support frame 32a and extends parallel to the rail 32b, and a pair of laterally movable tables 32d that are guided by the rail 32b and are movable in the length direction. The ball screw shaft 32c has a left screw portion and a right screw portion on one side and the other side in the length direction. One lateral movement table 32d is screwed into the left screw part, and the other horizontal movement table 32d is screwed into the right screw part. Accordingly, the lateral movement bases 32d and 32d can be moved close to and away from each other in the longitudinal direction by the rotational drive of the ball screw shaft 32c by the motor M2.

  As shown in FIGS. 8 and 9, the second chuck 31 is supported on each lateral movement table 32 d via the first elevating means 22. The first elevating means 22 is a cylinder 33 in this example, and an elevating platform 34 is attached to the lower end of the rod 33a so as to be movable up and down.

  The second chuck 31 has a main roller 35 pivotally supported on the upper surface of the strip piece S1 so as to roll in the length direction, and a rollable auxiliary member that holds the strip piece S1 between the main roller 35. And roller 36. Further, the auxiliary roller 36 is arranged in a vertically aligned state Y1 (shown in FIG. 10A) aligned with the main roller 35 below and in a horizontally aligned state Y2 aligned with the side of the main roller 35 (FIG. 10C). ) Is supported so that the position can be changed.

  Specifically, the second chuck 31 of this example includes a first roller mounting plate 37 whose upper end is fixed to the lateral movement table 32d, and a tilt plate 38 on the first roller mounting plate 37. A second roller mounting plate 39 is further provided.

  A support shaft 40 (shown in FIG. 9) that extends through the first roller mounting plate 37 in the thickness direction is fixed to the first roller mounting plate 37. The support shaft 40 includes projecting shaft portions 40 a and 40 b that project from both side surfaces of the first roller mounting plate 37. The main roller 35 is pivotally supported on one of the protruding shaft portions 40a. In addition, one end side of the tilting plate 38 is pivotally supported by the other protruding shaft portion 40b so as to be tiltable about the axis 40i of the support shaft 40. The tilt plate 38 is provided with a guide portion 38a extending from one end side to the other end side.

  The second roller mounting plate 39 is guided by the guide portion 38a and supported so as to be slidable in the radial direction around the axis 40i. The auxiliary roller 36 is rotatably supported by the second roller mounting plate 39.

  The auxiliary roller 36 is urged toward the main roller 35 by the urging means 41. The urging means 41 of this example is formed of a tension spring and is bridged between the fixed pins 42 and 42 that are attached to the tilting plate 38 and the second roller mounting plate 39.

  The second chuck 31 includes an actuator 43 that tilts the tilting plate 38. The actuator 43 includes a cylinder 44 in this example, and, for example, the lower end of the rod 44 a is pivotally supported by the second roller mounting plate 39. Further, the upper end portion of the cylinder 44 is pivotally supported on the lifting platform 34 via, for example, an arm portion 45. The arm portion 45 is fixed to the lifting platform 34 and rises integrally upward from the lifting platform 34.

  Here, the operation of the second chuck 31 will be described. As shown in FIG. 10A, when the cylinder 44 (actuator 43) extends, the tilting plate 38 tilts downward around the axis 40i, and the second roller mounting plate 39 moves along the guide portion 38a. Pushed down. Thereby, the auxiliary roller 36 is in the vertically aligned state Y1, and the auxiliary roller 36 and the main roller 35 can be separated from each other. Therefore, the strip piece S <b> 1 can be received between the auxiliary roller 36 and the main roller 35 from the moving tool 3.

  Further, as shown in FIGS. 10B and 10C, the tilting plate 38 is tilted upward around the axis 40i due to the reduction of the cylinder 44 (actuator 43). At the same time, the urging force of the urging means 41 moves the second roller mounting plate 39 along the guide portion 38a toward the axis 40i. As a result, the auxiliary roller 36 is in the side-by-side state Y2, and the strip piece S1 can be sandwiched and held between the auxiliary roller 36 and the main roller 35.

  Further, in this gripping state (side by side state Y2), the side edge Se of the strip piece S1 to be gripped is overlapped on the side edge Se of the strip piece S1 on the affixing conveyor 4 by being lowered by the first elevating means 22. Can be pressed together. Thereafter, by moving the second chucks 31 and 31 away from each other, the strip piece S1 to be gripped is pulled on both sides in the length direction, and the strip piece S1 can be adhered while being stretched. That is, the strip pieces S1 can be joined with high accuracy without causing wrinkles or slack.

  For this purpose, it is preferable to dispose a brake 50 (shown in FIG. 9) that gives rotational resistance to the auxiliary roller 36 in the second chuck 31. Further, a one-way bearing 51 (shown in FIG. 9) is interposed between the main roller 35 and the support shaft 40 so that the main roller 35 can roll on the upper surface of the strip piece S1 only outward in the length direction. It is preferable to regulate the rotation direction G.

  By configuring the second lifting / lowering means 24 so that it can be lowered in multiple stages, the second lifting / lowering means 24 can also function as the first lifting / lowering means 22.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to embodiment of illustration, It can deform | transform and implement in a various aspect.

DESCRIPTION OF SYMBOLS 1 Tire ply manufacturing apparatus 2 Cutting tool 3 Moving tool 4 Pasting conveyor 5 Joining tool 6 Cutter 7 Cutting side chuck 10 1st chuck means 10F 1st chuck 10R before 1st chuck 20 2nd chuck means 21 Turning means 22 First lifting means 24 Second lifting means 31 Second chuck 35 Main roller 36 Auxiliary roller Y1 Vertically aligned state Y2 Horizontally aligned state E Cutting edge F Tire ply J Unloading direction S Strip S1 Strip piece Se Side edge X Loading direction

Claims (7)

A tire ply manufacturing apparatus for forming a tire ply by sequentially overlapping and joining side edges of strip pieces cut from a long strip-shaped strip on a bonding conveyor,
The strips carried in the length direction are cut at predetermined cutting lengths from the length direction front end side at the cutting position P1, and strip pieces whose cutting edges are inclined at an angle θ with respect to the length direction are sequentially formed. Cutting tool,
A moving tool having first chuck means for gripping the cut strip piece and moving the strip piece in the length direction to the delivery position;
An affixing conveyor having an unloading direction different from the loading direction;
And a joining tool for joining the strip piece received at the delivery position to the strip piece on the sticking conveyor,
The connector is
Second chuck means having a pair of second chucks for receiving and gripping strip pieces from the first chuck means at the delivery position;
Swiveling means capable of swiveling the second chuck means about a vertical axis i until the cutting edge of the received strip piece is in a swiveling state parallel to the carry-out direction of the application conveyor;
After turning, the second chuck is lowered, and the side edge portion in the unloading direction of the strip piece to be gripped is overlapped and joined to the side edge portion on the rear side in the unloading direction of the strip piece on the sticking conveyor. A ply manufacturing apparatus for tires, comprising: 1 lifting means.   The joining tool includes a second lifting / lowering means for lowering the second chuck means prior to turning and preventing a collision between the first chuck means and the second chuck means during turning. Item 1. A tire ply manufacturing apparatus according to Item 1.   The second chuck means includes a pair of second chucks that are held so as to be able to move toward and away from each other along the length direction of the strip piece and that can hold the strip piece in the thickness direction. The tire ply manufacturing apparatus according to claim 1 or 2, wherein the strip piece to be gripped is pulled and stretched on both sides in the length direction by movement of the two chucks in the separating direction.   The second chuck includes a main roller pivotally supported on the upper surface of the strip piece so as to roll in the length direction, and a rollable auxiliary roller that holds the strip piece between the main roller. The tire ply manufacturing apparatus according to claim 3, comprising: a tire ply manufacturing apparatus;   The auxiliary roller can be repositioned between a vertically aligned state aligned below the main roller and a horizontally aligned state aligned to the side of the main roller, and in the vertically aligned state, the auxiliary roller 5. The tire ply manufacturing apparatus according to claim 4, wherein the strip piece is received from the first chuck means by being separated, and in the side-by-side state, the strip piece is sandwiched and held with the main roller. .   The cutting tool is disposed at a cutter disposed at a cutting position P1 and a rear holding position P2 on the rear side and in the vicinity of the cutting position P1, and sandwiches the strip in the thickness direction at the rear holding position P2. A tire ply manufacturing apparatus according to any one of claims 1 to 5, further comprising a cutting-side chuck that can be gripped by the tire. The first chuck means has front and rear first chucks that can be gripped by sandwiching the front end portion and the rear end portion of the strip piece in the thickness direction and can be moved back and forth in the loading direction,
The first front chuck returns to an initial position P3 that is rearward of the cutting position P1 in the loading direction and different from the rear holding position P2 after the strip piece is transferred at the transfer position. By pulling the strip from the cutting position P1 by gripping the strip at P3 and moving the distance corresponding to the cutting length forward in the loading direction,
After pulling out the strip, prior to cutting with the cutting tool, the first chuck after the grip grips the strip at the front holding position P4 in the forward direction in the loading direction and near the cutting position P1, and The tire ply manufacturing apparatus according to claim 6, wherein the cutting chuck grips the strip at the rear holding position P2.

Images