JP6285282B2 - Blading reversing device - Google Patents

Description

  The present invention relates to a bladder reversing device for reversing a bladder ring attached to an end of a bladder.

  When a green tire is vulcanized by a tire vulcanizer, the green tire is pressurized from the inside by a bladder assembly in the tire vulcanizer while the green tire is heated. This bladder assembly for tire vulcanization includes a bladder that expands in a green tire, a bladder ring that is attached to an end of the bladder, and the like, and is assembled in advance before vulcanization of the green tire. At this time, the bladder ring is assembled by attaching the bladder ring to the end portion of the bladder mainly by hand. Also, the bladder ring is disassembled by removing the bladder ring from the end of the bladder mainly by hand.

  However, the weight of the bladder ring increases as the tire size increases. For example, in a truck / bus tire, the weight is 60 to 90 kg. It is also necessary to reverse the bladder ring during assembly or disassembly of the bladder assembly. Therefore, in the assembly or disassembly work of the bladder assembly, the burden on the operator is large, and in particular, the burden on the flipping operation of the bladder ring is extremely large.

On the other hand, a bladder reversing device that holds and reverses a bead ring (bladder ring) with an electromagnet has been conventionally known (see Patent Document 1).
However, in the conventional bladder reversing device described in Patent Document 1, since the bladder ring is held only by the magnetic force of the electromagnet, it is difficult to reliably hold the bladder ring as the weight of the bladder ring increases. Therefore, with regard to the conventional bladder reversing device, it is required to hold the bladder ring more reliably in order to prevent the bladder ring from being detached when the bladder ring is reversed.

  In addition, when assembling or disassembling the bladder assembly, it is necessary to adjust the position of each part of the bladder ring by rotating the inverted bladder ring in the circumferential direction. Thereby, for example, the position of the bolt hole of the bladder ring is adjusted. However, in the conventional bladder reversing device, the bladder ring cannot be rotated in the circumferential direction after holding the bladder ring.

JP 2010-89474 A

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to reliably hold the bladder ring by the bladder ring reversing device and to hold the reversed bladder ring so as to be rotatable in the circumferential direction.

  The present invention is a bladder ring reversing device including a holding device that holds the bladder ring in a state where the radial direction of the bladder ring attached to the end portion of the bladder is horizontal, and a reversing mechanism that reverses the holding device together with the bladder ring. The holding device includes a plurality of holding bodies that move from the radially outer side of the bladder ring to the bladder ring to hold the bladder ring, and a moving device that moves the plurality of holding bodies in the radial direction of the bladder ring. A plurality of holding bodies contact the outer peripheral portion of the bladder ring to restrict the radial movement of the bladder ring and allow the circumferential rotation of the bladder ring, and the bladder ring located on the upper side before reversing the bladder ring And an upper and lower direction restricting portion that supports the bladder ring after being inverted from the lower side so as to be rotatable in the circumferential direction.

  According to the present invention, the bladdering reversing device can reliably hold the bladder ring and can hold the reversed bladder ring so as to be rotatable in the circumferential direction.

It is sectional drawing which shows the bladder assembly of this embodiment. It is a top view which shows the assembly apparatus of the bladder assembly of this embodiment. It is a side view which shows the moving apparatus of the bladder assembly of this embodiment. It is a side view which shows the bladdering inversion apparatus of this embodiment. It is a top view which shows the holding | maintenance apparatus of the bladder ring of this embodiment. It is a side view which shows the holding part of the holding body of this embodiment. It is a figure which shows the disassembly procedure of the bladder assembly of this embodiment.

An embodiment of a bladdering reversing device of the present invention will be described with reference to the drawings.
The bladder ring reversing device of this embodiment holds and reverses the bladder ring when assembling or disassembling the bladder assembly including the bladder. The bladder assembly is used when vulcanizing an unvulcanized rubber member, and presses the unvulcanized rubber member from the inside with a bladder in a vulcanizer. Hereinafter, a bladder ring reversing device will be described by taking a bladder assembly for tire vulcanization as an example.

FIG. 1 is a cross-sectional view showing a bladder assembly 1 of the present embodiment.
As shown in the figure, the bladder assembly 1 has a bladder 2 and a plurality of bladder rings (first to fourth bladder rings) 3 to 6, and is disposed in a tire vulcanizer when a green tire is vulcanized. The bladder 2 is an inflatable cylindrical member (cylindrical body), and is formed of a stretchable material (for example, rubber). During the vulcanization of the green tire, the bladder 2 is inflated in the green tire by the pressurizing medium and pressurizes the green tire. Moreover, the bladder 2 contracts to the original state by removing the pressure medium after vulcanization of the green tire.

  The plurality of bladder rings 3 to 6 are ring-shaped holding members (holding rings) that hold the end portion 2A of the bladder 2, and each have a circular center hole 3A to 6A and an annular outer peripheral portion 3B to 6B. By assembling the bladder assembly 1, the plurality of bladder rings 3 to 6 are attached to the end 2 </ b> A of the bladder 2 in the bladder assembly 1. Further, in the tire vulcanizer, the plurality of bladder rings 3 to 6 are arranged with their respective centers in the radial direction K (lateral direction in FIG. 1) aligned. In this state, the end 2A of the bladder 2 is held by the plurality of bladder rings 3 to 6, and the bladder 2 is inflated in the green tire.

  Specifically, the first bladder ring 3 and the second bladder ring 4 are attached to one end 2A (here, the upper end 2A) of the bladder 2 and fastened by a bolt 1A that is a fastening member. The third bladder ring 5 and the fourth bladder ring 6 are attached to the other end 2A (here, the lower end 2A) of the bladder 2 and fastened by a bolt 1A that is a fastening member. Further, the first bladder ring 3 and the third bladder ring 5 are attached to the end portion 2 </ b> A inside the bladder 2, and the second bladder ring 4 and the fourth bladder ring 6 are attached to the end portion 2 </ b> A outside the bladder 2. One end 2A of the bladder 2 is clamped by the first bladder ring 3 and the second bladder ring 4, and the other end 2A of the bladder 2 is clamped by the third bladder ring 5 and the fourth bladder ring 6. Is done. The bladder assembly 1 is assembled by attaching the bladder rings 3 to 6 to the end 2A of the bladder 2, and the bladder assembly 1 is disassembled by removing the bladder rings 3 to 6 from the end 2A of the bladder 2.

FIG. 2 is a plan view showing the assembling apparatus 7 of the bladder assembly 1 of the present embodiment, and shows a schematic configuration of the assembling apparatus 7 including the bladder ring reversing device 8. The bladder assembly 1 is assembled by a predetermined procedure using the assembly device 7. Further, the bladder assembly 1 is disassembled by using the assembling apparatus 7 in a procedure opposite to the assembling procedure.
As shown in the figure, the assembling apparatus 7 includes a moving device 10 for moving the bladder assembly 1, a bladdering reversing device 8, and a detaching section 9 for removing the bladder ring from the bladdering reversing device 8. By the moving device 10, the bladder assembly 1 moves to the outside of the bladdering reversing device 8 and the bladdering reversing device 8.

FIG. 3 is a side view showing the moving device 10 of the bladder assembly 1 of the present embodiment, and shows the moving device 10 as seen from the direction of the arrow X1 in FIG.
As shown in the figure, the moving device 10 includes a support column 11, a suspension unit 12 that suspends the bladder assembly 1, an elevating mechanism 13 that raises and lowers the suspension unit 12, and a swing unit that is pivotally attached to the support column 11. 14 and a turning mechanism 15. The suspension part 12 is attached to a first bladder ring 3 (not shown in FIG. 3) of the bladder assembly 1 to suspend the first bladder ring 3 and the bladder assembly 1.

  The elevating mechanism 13 has, for example, a piston / cylinder mechanism and is attached to the turning portion 14. By the elevating mechanism 13, the moving device 10 raises and lowers the bladder assembly 1 suspended by the suspending portion 12, and moves the bladder assembly 1 in the vertical direction (see arrow E1). The turning mechanism 15 has, for example, a piston / cylinder mechanism, and turns the lifting mechanism 13 and the hanging part 12 by turning the turning part 14. By the turning mechanism 15, the moving device 10 turns the bladder assembly 1 suspended by the suspension part 12 (see arrow E <b> 2 in FIG. 2) to move the bladder assembly 1 in the lateral direction.

  When the bladder assembly 1 is disassembled (see FIG. 2), the moving device 10 moves the bladder assembly 1 from outside the bladdering reversing device 8 to the bladdering reversing device 8 and attaches it to the bladdering reversing device 8. On the other hand, after assembling the bladder assembly 1, the bladder assembly 1 is removed from the bladdering reversing device 8 and moved from the bladdering reversing device 8 to the outside of the bladdering reversing device 8 by the moving device 10. Here, the bladder ring reversing device 8 holds the fourth bladder ring 6 (hereinafter simply referred to as the bladder ring 6), and the assembly and disassembly of the bladder assembly 1 are performed in this state.

  During assembly and disassembly of the bladder assembly 1, the bladder ring reversing device 8 holds the bladder ring 6 at the assembly and disassembly position P <b> 1 of the bladder assembly 1 (hereinafter referred to as the first position P <b> 1). The first position P <b> 1 is a position where assembly and disassembly of the bladder assembly 1 is performed, and is set as a reference operation position of the bladder ring reversing device 8. Further, after the bladder assembly 1 is disassembled, the bladder ring reversing device 8 moves the bladder ring 6 from the first position P1 to the removal position P2 of the bladder ring 6 (hereinafter referred to as the second position P2). The detaching part 9 has a work table 9A that supports the bladder ring 6, and is installed at the second position P2.

  The bladder ring reversing device 8 moves the bladder ring 6 to the removal portion 9 at the second position P2 and puts it on the work table 9A of the removal portion 9. In this state, the bladder ring 6 is removed from the bladder ring reversing device 8. The work of cleaning (for example, polishing) of the bladder ring 6 is performed on the work table 9A. When replacing the bladder ring 6, the previous bladder ring 6 is removed from the work table 9A, and the next bladder ring 6 is placed on the work table 9A. When assembling the bladder assembly 1, the bladder ring reversing device 8 holds the bladder ring 6 placed on the work table 9A of the removal portion 9, and moves the bladder ring 6 from the second position P2 (removal portion 9) to the first position P1. Move. Further, when the bladder assembly 1 is assembled and disassembled, the bladder ring 6 is held and reversed by the bladder ring reversing device 8.

FIG. 4 is a side view showing the bladdering reversing device 8 of the present embodiment, and shows the bladdering reversing device 8 viewed from the direction of the arrow X2 in FIG. Further, FIG. 4 shows the bladder ring 6 held by the bladder ring reversing device 8 by a two-dot chain line.
As illustrated, the bladder ring reversing device 8 includes a holding device 20 that holds the bladder ring 6, a reversing mechanism 30 that reverses the holding device 20, a lifting device 40 that lifts and lowers the holding device 20, and a swivel that turns the holding device 20. Device 50. The holding device 20 holds the bladder ring 6 in a state where the radial direction K of the bladder ring 6 is in the horizontal direction (here, the horizontal direction). The reversing mechanism 30 reverses the holding device 20 and reverses the bladder ring 6 held by the holding device 20 up and down (see arrow F1).

  The reversing mechanism 30 includes a rotating shaft 31 fixed to the holding device 20, a support portion 32 that rotatably supports the rotating shaft 31, and a rotating mechanism 33 that rotates the rotating shaft 31. The rotation mechanism 33 includes a rotation drive unit 34, a drive gear 35 attached to the rotation drive unit 34, and a driven gear 36 that meshes with the drive gear 35. The rotation drive unit 34 is, for example, a motor (here, a servo motor), and rotates the drive gear 35 while controlling the rotation angle of the drive gear 35. The driven gear 36 is fixed to the rotating shaft 31 and is rotated by the rotation of the driving gear 35. The rotation mechanism 33 rotates the drive gear 35 by the rotation drive unit 34 and rotates the driven gear 36 together with the rotation shaft 31. By the rotation of the rotating shaft 31, the reversing mechanism 30 rotates the holding device 20 by 180 ° to reverse the holding device 20 together with the bladder ring 6.

  The lifting device 40 includes a frame 41, two parallel guide rails 42 fixed to the frame 41, a moving body 43 connected to the guide rail 42, and a moving mechanism 44 that moves the moving body 43. The moving mechanism 44 has, for example, a piston / cylinder mechanism, and moves the moving body 43 attached to the tip of the piston rod along the guide rail 42. By the moving mechanism 44, the moving body 43 moves in the vertical direction (here, the vertical direction). The reversing mechanism 30 is attached to the moving body 43, and the reversing mechanism 30 and the holding device 20 move together with the moving body 43. By the movement of the moving body 43, the elevating device 40 raises and lowers the reversing mechanism 30 and the holding device 20, and moves the holding device 20 in the vertical direction together with the bladder ring 6 (see arrow F2).

  The swivel device 50 includes a base 51, a disk-shaped rotating disk 52 that rotates on the base 51, and a rotating mechanism 53 that rotates the rotating disk 52. The rotation mechanism 53 includes a rotation drive unit 54, a drive gear 55 attached to the rotation drive unit 54, and a driven gear 56 that meshes with the drive gear 55. The rotation drive unit 54 is, for example, a motor (here, a servo motor), and rotates the drive gear 55 while controlling the rotation angle of the drive gear 55. The driven gear 56 is fixed to the outer periphery of the rotating disk 52 and is rotated by the rotation of the drive gear 55. The rotation mechanism 53 rotates the drive gear 55 by the rotation drive unit 54 and rotates the driven gear 56 together with the rotating disk 52. The lifting device 40 is attached to a turntable 52, and the lifting device 40, the reversing mechanism 30, and the holding device 20 rotate together with the turntable 52. By the rotation of the turntable 52, the turning device 50 turns the holding device 20 together with the bladder ring 6 (see arrow F3 in FIG. 2).

  With the turning device 50, the bladder ring reversing device 8 moves the holding device 20 to the first position P1 and the second position P2 together with the bladder ring 6 (see FIG. 2). Moreover, the raising / lowering device 40 causes the bladder reversing device 8 to change the vertical position of the holding device 20 and arrange the holding device 20 at a predetermined position in the vertical direction. When the holding device 20 is reversed, moved, and moved up and down, the bladder ring 6 is held at a holding position in the holding device 20 and is maintained in a state held by the holding device 20.

FIG. 5 is a plan view showing the holding device 20 of the bladder ring 6 of the present embodiment, and shows the holding device 20 as seen from the direction of the arrow X3 in FIG. FIG. 5 shows the bladder ring 6 held by the holding device 20 with a two-dot chain line. Of the two annular two-dot chain lines indicating the bladder ring 6, the outer annular line is the outer peripheral portion 6B of the bladder ring 6, and the inner annular line is the inner peripheral portion 6C of the bladder ring 6.
As illustrated, the holding device 20 includes a case 21, a fixing ring 22, a rotating ring 23, a plurality of holding bodies 60, and a moving device 24 that moves the plurality of holding bodies 60. The case 21 has a cylindrical shape and is fixed to the rotating shaft 31 of the reversing mechanism 30. The fixing ring 22 is a ring-shaped plate having a circular center hole 22 </ b> A, and is fixed to one end portion (here, the lower end portion) of the case 21. The rotating ring 23 is a ring-shaped plate having a circular center hole 23A, and is rotatably attached to the other end portion (here, the upper end portion) of the case 21. The bladder ring 6 is arranged in the arrangement space 25 formed in the holding device 20 through the center hole 23 </ b> A of the rotating ring 23.

  Between the fixing ring 22 and the rotating ring 23, the plurality of holding bodies 60 are movably connected to the fixing ring 22 and the rotating ring 23, so that the outer side in the radial direction K of the bladder ring 6 (hereinafter simply referred to as the radially outer side). Placed in. The plurality of holding bodies 60 are moved from the radially outer side of the bladder ring 6 to the bladder ring 6 by the moving device 24 to hold the bladder ring 6. At that time, the moving device 24 moves the plurality of holding bodies 60 in synchronization with the radial direction K of the bladder ring 6. The plurality of holding bodies 60 are arranged apart from each other along the outer peripheral portion 6B of the bladder ring 6, and contact the bladder ring 6 at a plurality of locations on the outer peripheral portion 6B.

  The holding device 20 is a clamp device that holds the bladder ring 6 rotatably in the circumferential direction, and holds the bladder ring 6 in the arrangement space 25 by three or more holding bodies 60. Here, the plurality of holding bodies 60 are arranged at equal intervals in the circumferential direction of the bladder ring 6. In addition, the holding device 20 includes four holding bodies 60. By the moving device 24, the plurality of holding bodies 60 move to a position where the bladder ring 6 is not held (a position on the outer side in the radial direction of the bladder ring 6) and a position where the bladder ring 6 is held (a position contacting the bladder ring 6).

  The fixing ring 22 has a plurality of guide grooves 26 extending in the radial direction K of the bladder ring 6, and a part of each holding body 60 is disposed in the guide grooves 26. The plurality of holding bodies 60 are respectively guided by the guide grooves 26 of the fixing ring 22 and moved in the radial direction K of the bladder ring 6. The rotating ring 23 has a plurality of inclined grooves 27 that are inclined with respect to the radial direction K of the bladder ring 6, and each of the plurality of inclined grooves 27 is formed in a curved shape in an arc shape. The pin 28 is fixed to each holding body 60 and disposed in the inclined groove 27. When the rotating ring 23 rotates in the circumferential direction (see arrow G1), the pin 28 is pushed in the radial direction K of the bladder ring 6 in the inclined groove 27 and moves in the radial direction K of the bladder ring 6 together with the holding body 60. (See arrow G2). Therefore, the rotating ring 23 and the pin 28 are part of the moving device 24.

  The moving device 24 includes a rotating mechanism 24A that rotates the rotating ring 23. The rotating mechanism 24A is a piston / cylinder mechanism having a cylinder 24B and a piston rod 24C. Two ends of the rotating mechanism 24A are rotatably connected to the case 21 and the rotating ring 23, respectively. The rotating mechanism 24A rotates the rotating ring 23 connected to the tip of the piston rod 24C by the movement of the piston rod 24C. The moving device 24 rotates the rotating ring 23 by the rotating mechanism 24 </ b> A to move the plurality of holding bodies 60 in the radial direction K of the bladder ring 6.

  In the arrangement space 25, in a state where the bladder ring 6 is in contact with a contact portion (not shown) of the fixed ring 22, the plurality of holding bodies 60 are moved by the moving device 24, and the holding portions 61 of the plurality of holding bodies 60 are bladdered. 6 is contacted. The holding portion 61 is a portion that holds the bladder ring 6 formed at the tip of the holding body 60, and the moving device 24 presses the holding portions 61 of the plurality of holding bodies 60 against the bladder ring 6. By the holding portion 61, the plurality of holding bodies 60 hold the bladder ring 6 and maintain the position of the bladder ring 6.

FIG. 6 is a side view showing the holding portion 61 of the holding body 60 of the present embodiment, and shows the holding portion 61 as seen from the direction of the arrow X4 in FIG. FIG. 6 schematically shows a part of the bladder ring 6 held by the plurality of holding bodies 60.
As shown in the drawing, each of the plurality of holding bodies 60 includes an insertion portion 62 into which the outer edge portion 6D of the bladder ring 6 is inserted, and two restricting portions 70 and 80 that restrict the movement of the bladder ring 6. The insertion portion 62 is a recess formed in the holding portion 61 of the holding body 60, and the outer edge portion 6 </ b> D of the bladder ring 6 is held by the holding body 60 (holding portion 61) in the insertion portion 62 of the holding portion 61. The two restricting portions 70 and 80 are provided inside the insertion portion 62 and come into contact with the outer edge portion 6 </ b> D of the bladder ring 6. The plurality of holding bodies 60 restrict the movement of the bladder ring 6 by the restriction portions 70 and 80 of the holding portion 61 and hold the bladder ring 6 by the holding portion 61.

  The two restriction portions 70 and 80 are a radial direction restriction portion 70 and a vertical direction restriction portion 80, and the bladder ring 6 is slidably in contact with the restriction portions 70 and 80. Before and after the holding device 20 and the bladder ring 6 are reversed, the radial direction restricting portion 70 contacts the annular outer peripheral portion 6B of the bladder ring 6 to restrict the movement of the bladder ring 6 in the radial direction K. The bladder ring 6 is arranged inside the radial direction restricting portions 70 of the plurality of holding bodies 60 without moving in the radial direction K. In this state, the radial restricting portion 70 allows the circumferential rotation of the bladder ring 6. As the outer peripheral portion 6B of the bladder ring 6 slides with respect to the radial direction restricting portion 70, the bladder ring 6 rotates in the circumferential direction inside the radial direction restricting portions 70 of the plurality of holding bodies 60.

  In a state before reversal by the bladdering reversing device 8 (the state shown in FIG. 6), the bladder ring 6 has one annular surface 6E located on the upper side and the other annular surface 6F located on the lower side. The annular surfaces 6E and 6F are the upper surface and the lower surface of the bladder ring 6 in which the center hole 6A is formed, and are formed annularly around the center hole 6A. The vertical direction restricting portion 80 comes into contact with one surface (annular surface 6E) of the bladder ring 6 positioned on the upper side before the bladder ring 6 is inverted, and restricts the movement of the bladder ring 6 in the vertical direction (thickness direction). The bladder ring 6 is held by the plurality of holding bodies 60 without being moved in the vertical direction by the vertical direction regulating portions 80 of the plurality of holding bodies 60. Here, the movement of the bladder ring 6 in the vertical direction is restricted by the vertical restriction member 80 inside the insertion portion 62, and the bladder ring 6 is held by the holding member 61.

  Before and after the inversion of the bladder ring 6, the vertical direction restricting portion 80 comes into contact with one annular surface 6 </ b> E of the bladder ring 6, and the vertical direction restricting portion 80 restricts the movement of the bladder ring 6 in the vertical direction. In addition, after the flip of the bladder ring 6, the vertical restricting portion 80 supports the inverted bladder ring 6 from below and allows the bladder ring 6 to rotate in the circumferential direction. That is, the inverted bladder ring 6 is supported by the up-down direction restricting portion 80 so as to be rotatable in the circumferential direction. One annular surface 6 </ b> E of the bladder ring 6 slides with respect to the vertical direction regulating portion 80, so that the bladder ring 6 is supported by the vertical direction regulating portions 80 of the plurality of holding bodies 60. Rotate in the circumferential direction inside the radial restricting portion 70.

  In this way, the plurality of holding bodies 60 rotatably hold the inverted bladder ring 6 by the radial direction restriction portion 70 and the vertical direction restriction portion 80 of the holding portion 61. The radial direction restricting portion 70 has a curved contact surface 71 that comes into contact with the outer peripheral portion 6B of the bladder ring 6, and the vertical direction restricting portion 80 is a curved contact surface that comes into contact with one surface (annular surface 6E) of the bladder ring 6. 81. Each of the contact surfaces 71 and 81 is a convex surface that is curved with a predetermined curvature radius (for example, 20 mm), and is formed in a shape that forms a part of a spherical surface (referred to as a spherical surface). The bladder ring 6 contacts the contact surface 71 of the radial direction restricting portion 70 and the contact surface 81 of the up and down direction restricting portion 80 in a rotatable manner.

  The radial direction restriction part 70 and the vertical direction restriction part 80 are hemispherical protrusions that protrude from the holding body 60, respectively, and protrude toward the inside of the insertion part 62. Inside the insertion portion 62, the vertical direction restricting portion 80 protrudes downward from the upper portion of the holding body 60, and the radial direction restricting portion 70 protrudes upward from the lower portion of the holding body 60. In addition, the radial direction restricting portion 70 and the vertical direction restricting portion 80 are fixed to the holding body 60 so as not to rotate, and contact the bladder ring 6 without rotating. The inverted bladder ring 6 is in contact with the radial direction restriction portions 70 and the vertical direction restriction portions 80 of the plurality of holding bodies 60, and inside the radial direction restriction portions 70 of the plurality of holding bodies 60, the plurality of holding bodies 60. It is rotatably supported by the vertical direction restricting portion 80. In this state, the bladder ring 6 rotates only without moving in the radial direction K and the vertical direction.

  The radial direction restricting portion 70 and the vertical direction restricting portion 80 are each formed of engineering plastic, and are fixed to the holding portion 61 of the holding body 60 by a fixing means. The engineering plastic is, for example, nylon or fluororesin, and here, the radial direction restriction portion 70 and the vertical direction restriction portion 80 are made of MC nylon (registered trademark). In one holding body 60, the radial direction restricting portion 70 and the vertical direction restricting portion 80 face each other in a vertically separated state, and at least one of the radial direction restricting portions 70 is projected onto one plane from above. And a part of the vertical direction restricting portion 80 overlap. Further, the vertical direction restricting portion 80 is shifted to the inner side in the radial direction K of the bladder ring 6 (hereinafter, simply referred to as the inner side in the radial direction) with respect to the radial direction restricting portion 70, and the radius of the bladder ring 6 is more than Contact the bladder ring 6 on the inner side in the direction.

Next, the disassembling procedure of the bladder assembly 1 using the assembling apparatus 7 will be described.
FIG. 7 is a diagram showing a disassembly procedure of the bladder assembly 1 of the present embodiment, and the bladder assembly 1 is shown in a cross-sectional view corresponding to FIG. Further, when the assembly device 7 is shown in each drawing of FIG. 7, only the portion related to each stage of disassembly of the bladder assembly 1 is shown, and for the bladder reversing device 8, for example, only the holding body 60 is shown.
When disassembling the bladder assembly 1, first, the bladder assembly 1 is attached to the hanging portion 12 (see FIG. 3) of the moving device 10, and the bladder assembly 1 is moved to the bladder ring reversing device 8 by the moving device 10 ( (See FIGS. 7A and 7B). In the first position P1 (see FIG. 2), the bladder reversing device 8 moves the plurality of holding bodies 60 by the moving device 24 (see FIG. 5) of the holding apparatus 20 and causes the plurality of holding bodies 60 to perform bladdering ( (Fourth bladdering) 6 is held.

  The assembling apparatus 7 includes a center post 90 (see FIG. 7B) installed at the first position P1, and an elevating device (not shown) that raises and lowers the center post 90. After holding the bladder ring 6 by the bladder reversing device 8, the center post 90 is raised and the center post 90 is inserted into the bladder assembly 1. The center post 90 is in contact with the first bladder ring 3 and supports the first bladder ring 3. In this state, the bolt 1A for fastening the first bladder ring 3 and the second bladder ring 4 is removed (see FIG. 7C), and the first bladder ring 3 and the second bladder ring 4 are removed from the bladder 2. Subsequently, the bladder ring reversing device 8 raises and reverses the bladder ring 6 together with the bladder assembly 1 being disassembled. At this time, the bladder assembly 1 is reversed after moving to above the center post 90.

  The bladder assembly reversing device 8 (see FIG. 7D) lowers the inverted bladder assembly 1 so that the center post 90 enters the bladder assembly 1. The center post 90 is in contact with the third bladder ring 5 and supports the third bladder ring 5. In that state, the bolt 1A for fastening the third bladder ring 5 and the bladder ring 6 is removed (see FIG. 7E), and the bladder ring reversing device 8 removes the bladder ring 6 from the bladder 2. Further, if necessary, the center post 90 is lowered and the bladder 2 is exchanged, or the third bladder ring 5 on the center post 90 is exchanged.

  The bladder ring reversing device 8 causes the bladder ring 6 to be reversed and moved to the removal portion 9 at the second position P2, and placed on the work table 9A (see FIG. 7F). Subsequently, the bladder reversing device 8 releases the holding of the bladder 6 by the plurality of holding bodies 60 by moving the plurality of holding bodies 60 away from the bladder ring 6 by the moving device 24 of the holding apparatus 20. The bladder ring 6 is cleaned on the work table 9A. At the time of assembling the bladder assembly 1, the bladder assembly 1 is assembled by a procedure opposite to the disassembling procedure shown in FIG.

  In the bladder ring reversing device 8 described above, the movement of the bladder ring 6 can be regulated and the bladder ring 6 can be reliably held by the plurality of holding bodies 60 having the radial direction regulating portion 70 and the vertical direction regulating portion 80. Further, the inverted bladder ring 6 can be held rotatably in the circumferential direction. Therefore, the position of each part (for example, bolt hole) of the bladder ring 6 can be easily adjusted by rotating the inverted bladder ring 6 in the circumferential direction when the bladder assembly 1 is assembled and disassembled. By moving the plurality of holding bodies 60 in the radial direction K of the bladder ring 6, the bladder rings 6 having various radii can be held. Therefore, safety and work efficiency can be improved in the assembly and disassembly work of the bladder assembly 1. By holding the bladder ring 6 with the three or more holding bodies 60, the bladder ring 6 can be reliably held and the bladder ring 6 can be easily arranged at the center of the plurality of holding bodies 60.

  Since the two restricting portions 70 and 80 are in contact with the bladder ring 6 at the curved contact surfaces 71 and 81, the contact area between the two restricting portions 70 and 80 and the bladder ring 6 is reduced. Therefore, the friction between the two restricting portions 70 and 80 and the bladder ring 6 is reduced, and the bladder ring 6 is easily rotated. In addition, since the two restricting portions 70 and 80 are hemispherical projections, the bladder ring 6 is in contact with any position of the outer surfaces (curved contact surfaces 71 and 81) of the two restricting portions 70 and 80. The friction between the two restricting portions 70 and 80 and the bladder ring 6 is reliably reduced.

  However, when the two restricting portions 70 and 80 rotate like balls of a ball bearing, the bladder ring 6 becomes too easy to rotate, and the bladder ring 6 may rotate unnecessarily. As a result, for example, when the operator adjusts the position of each part of the bladder ring 6 and releases the hand from the bladder ring 6, the position of each part of the bladder ring 6 may be shifted. Therefore, here, the two restricting portions 70 and 80 are fixed to the holding body 60 so as not to rotate, thereby reliably preventing unnecessary rotation of the bladder ring 6.

  As the friction between the two restricting portions 70 and 80 and the bladder ring 6 increases, the bladder ring 6 becomes difficult to rotate, and as the friction between the two restricting portions 70 and 80 and the bladder ring 6 decreases, the bladder ring 6 becomes easier to rotate. On the other hand, when the two restricting portions 70 and 80 are formed of engineering plastic, appropriate friction is generated between the two restricting portions 70 and 80 and the bladder ring 6, and the bladder ring 6 is appropriately rotated. Further, the engineering plastic restricting portions 70 and 80 can prevent the bladder ring 6 from being damaged while increasing the durability of the restricting portions 70 and 80.

  In the bladder ring reversing device 8 (see FIG. 6) of the present embodiment, the center line 72 extending in the vertical direction of the radial direction restricting portion 70 corresponds to the shape of the bladder ring 6, and the outer surface (hemispherical surface) of the vertical direction restricting portion 80. Is tangent. Thereby, the up-down direction control part 80 contacts the bladder ring 6 reliably, and supports the bladder ring 6 after inversion. On the other hand, if the center line 72 of the radial direction restricting portion 70 is shifted to the center side (left side in FIG. 6) of the up and down direction restricting portion 80, it is difficult to support the inverted bladder ring 6 by the up and down direction restricting portion 80. is there. Further, when the center line 72 of the radial direction restricting portion 70 is shifted to the outside (right side in FIG. 6) of the up and down direction restricting portion 80, the bladder ring 6 is brought into contact with the up and down direction restricting portion 80 without being in contact with the radial direction restricting portion 70. There is a risk of contact.

  The distance R in the vertical direction between the radial direction restriction portion 70 and the vertical direction restriction portion 80 (hereinafter referred to as the distance between the restriction portions 70 and 80) is the thickness and shape of the bladder ring 6 (here, the thickness of the outer peripheral portion 6B: 13 mm, Corresponding to the radius of curvature of the annular surface 6E: 60 to 100 mm). On the other hand, when the distance R between the restricting portions 70 and 80 is larger than 5 mm, the gap between the up-and-down restricting portion 80 and the bladder ring 6 becomes large, and there is a possibility that the bladder ring 6 may be rattled.

  Note that the bladder ring 6 may be held and reversed by the bladder ring reversing device 8 when the bladder assembly 1 is assembled and disassembled. On the other hand, the bladder ring 6 may be held and reversed by the bladder reversing device 8 only when the bladder assembly 1 is assembled or only when the bladder assembly 1 is disassembled. Further, the two restricting portions 70 and 80 may be protrusions having a shape other than a hemispherical shape, and may be disposed at positions separated in the radial direction K (or circumferential direction) of the bladder ring 6. The up-down direction restricting portion 80 may contact one surface of the bladder ring 6 at a position different from the above-described position (see FIG. 6). The moving device 24 that moves the plurality of holding bodies 60 may be a moving device (for example, a link mechanism having a plurality of links) different from the above-described example (see FIG. 5).

  DESCRIPTION OF SYMBOLS 1 ... Bladder assembly, 2 ... Bladder, 3-6 ... Bladder ring, 7 ... Bladder assembly assembly device, 8 ... Bladder ring reversing device, 9 ... Removal part, 10. ..Bladder assembly moving device, 11 ... post, 12 ... hanging portion, 13 ... lifting mechanism, 14 ... swivel unit, 15 ... slewing mechanism, 20 ... holding device , 21 ... case, 22 ... fixed ring, 23 ... rotating ring, 24 ... moving device, 25 ... arrangement space, 26 ... guide groove, 27 ... inclined groove, 28 ... Pin, 30 ... Reversing mechanism, 31 ... Rotating shaft, 32 ... Supporting part, 33 ... Rotating mechanism, 34 ... Rotary driving part, 35 ... Drive gear, 36 ..Following gear, 40 ... Elevating device, 41 ... Frame, 42 ... Guide rail, 43 ... Transfer Body 44... Moving mechanism 50... Turning device 51. Base 52. Rotating disk 53. Rotating mechanism 54. Rotation driving unit 55. , 56 ... driven gear, 60 ... holding body, 61 ... holding part, 62 ... insertion part, 70 ... radial regulating part, 71 ... contact surface, 80 ... up and down Direction restricting portion, 81 ... contact surface, 90 ... center post, K ... radial direction of bladdering.

Claims (6)

A bladder ring reversing device comprising: a holding device that holds the bladder ring in a state where the radial direction of the bladder ring attached to the end portion of the bladder is in a lateral direction; and a reversing mechanism that reverses the holding device together with the bladder ring,
The holding device has a plurality of holding bodies that move from the radially outer side of the bladder ring to the bladder ring to hold the bladder ring, and a moving device that moves the plurality of holding bodies in the radial direction of the bladder ring,
A plurality of holding bodies contact the outer peripheral portion of the bladder ring to restrict the radial movement of the bladder ring and allow the circumferential rotation of the bladder ring, and the bladder ring located on the upper side before reversing the bladder ring And a vertical direction restricting unit that supports the bladder ring after reversing from the lower side so as to be able to rotate in the circumferential direction. The bladdering reversing device according to claim 1,
The radial restriction has a curved contact surface that contacts the outer periphery of the bladder ring;
A bladder reversing device in which the up-down restricting portion has a curved contact surface that contacts one surface of the bladder ring. The bladdering reversing device according to claim 1 or 2,
A bladdering reversing device in which the radial direction restricting portion and the vertical direction restricting portion are hemispherical protrusions protruding from the holding body. The bladdering reversing device according to any one of claims 1 to 3,
A bladder reversing device in which a radial direction restricting portion and an up and down direction restricting portion are fixed to a holding body in a non-rotatable manner. The bladdering reversing device according to any one of claims 1 to 4,
A bladder reversing device in which the radial direction restricting portion and the vertical direction restricting portion are each formed of engineering plastic. The bladdering reversing device according to any one of claims 1 to 5,
A bladdering reversing device in which the holding device holds the bladder ring by three or more holding bodies.

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