JP2007253415A - Support device of rigid core - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a support device of a rigid core capable of certainly holding and feeding the rigid core body for supporting a vulcanized or unvulcanized tire during the process from the molding of the tire to the separation and takeout of the rigid core body. <P>SOLUTION: A core holding mechanism 3 is constituted as shown in Fig. 5 and Fig. 6 that a plurality of pedestal-like support members 9 are arranged to the outer periphery of a center shaft 8 in a detachable manner by clamping members such as bolts or the like so as to leave a predetermined interval in the peripheral direction of the center shaft 8 and the support plates 10a and 10b for holding the upper opening edge part 2x of the rigid core body 2 from the upper and under surface sides thereof are attached to the upper and under surfaces of the support member 9 in a detachable manner. Clamp means for holding the inner diameter part and inside outer surface of the rigid core body 2 are provided to the peripheral edge parts of the support plates 10a and 10b and each of the clamp means is constituted of the inner diameter holding part inside folded to the peripheral edge parts of the support plates 10a and 10b and a bead ring 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rigid core support device. More specifically, the present invention relates to a rigid core body that supports a vulcanized tire or an unvulcanized tire, and from the molding of the tire to the separation and removal of the rigid core body. The present invention relates to a support device for a rigid core for securely holding.

  Conventionally, the invention of a “pneumatic tire manufacturing method and apparatus” using a rigid core that defines the shape of the inner surface of a tire when forming a pneumatic tire has been proposed, and a rigid body made of a plurality of segments has been proposed. Implementation of a segment manufacturing method and assembly method for a tire manufacturing core that defines the inner surface of the tire from the molding of the green tire until the end of the molding of the green tire using the core to the end of the tire vulcanization, and those methods An apparatus used for this purpose has been proposed (see, for example, Patent Document 1 and Patent Document 2).

  By the way, the rigid core used in the former pneumatic tire manufacturing apparatus has a substantially cylindrical shape in which two types of fan-shaped segments and a substantially trapezoidal mountain-shaped segment are alternately arranged in the circumferential direction using a metal material as a raw material. It has a divided structure, and when manufacturing a pneumatic tire, the plurality of fan-shaped segments and mountain-shaped segments are alternately arranged in the circumferential direction to form a rigid core, and after vulcanization molding of the tire, The plurality of fan-shaped segments are drawn out in the radial direction so as to be separated from the mountain-shaped segments.

  However, separation and assembly of such a rigid core divided into a plurality of parts require a lot of labor and time, and skill is required to separate and assemble without damaging the rigid core as an inner mold. And there was a problem that work efficiency was very bad.

Also, no support device has been proposed for transporting the rigid core while securely holding it until the rigid core is separated and removed from the molding of the tire.
JP 2003-523851 A JP 2002-307440 A

  The present invention pays attention to such conventional problems, and ensures that the rigid core body supporting the vulcanized tire or the unvulcanized tire is separated between the steps from the molding of the tire to the separation of the rigid core body. An object of the present invention is to provide a support device for a rigid core that can be held and transported.

  In order to achieve the above object, the present invention provides a rigid core body comprising at least two types of segment groups divided into a plurality in the circumferential direction from a vulcanized tire or an unvulcanized tire at the time of tire molding. A support device for a rigid core that supports a core holding mechanism, wherein a plurality of pedestal-shaped support members are detachably disposed on the outer periphery of the central shaft at predetermined intervals in the circumferential direction via fastening members. The gist of the invention is that a support plate for holding the rigid core body from the upper and lower surfaces is detachably attached to the upper and lower surfaces of the support member.

  Here, the peripheral portion of the support plate is provided with clamping means for holding the inner diameter portion and the inner outer surface of the rigid core body, and the clamping means includes an inner diameter holding portion bent inwardly at the peripheral edge portion of the support plate; It consists of a bead ring.

  By configuring in this way, the rigid core body that supports the vulcanized tire or unvulcanized tire is securely transported between the steps from tire molding to separation and removal of the rigid core body. It can be done.

As described above, the present invention provides rigidity for supporting a rigid core body composed of at least two types of segment groups divided into a plurality in the circumferential direction from inside a vulcanized tire or an unvulcanized tire at the time of molding the tire. A core support device, wherein the core holding mechanism detachably disposes a plurality of pedestal support members via a fastening member at a predetermined interval in the circumferential direction on the outer periphery of the central shaft, Since the support plate for holding the rigid core body from the upper and lower surface sides is detachably attached to the upper and lower surfaces of the support member, the following excellent effects can be obtained.
(a). Rigid core body that supports vulcanized tires or unvulcanized tires can be transported while reliably maintaining the process from separation to removal of the rigid core body from tire molding. .
(b) The work efficiency can be improved because the rigid core body can be clamped and removed automatically by type.
(c) It is possible to assemble and hold the separated rigid core body by performing the reverse process of the separating process.
(d) The support device is relatively simple and can be manufactured at low cost, and can be configured compactly.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
1 is a partial cross-sectional front view of a separation and removal device for carrying out the method for separating and removing a rigid core for molding a tire according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a side view of FIG. As shown in the figure, the separation and take-out device includes a guide rail 1a disposed on a support table 1 installed on a base G, and a rigid core body 2 and a core holding mechanism 3 are provided along the guide rail 1a. A slidable slide table 4 for carrying a vulcanized tire W or a non-vulcanized tire W having a surface held to the center position XX on the support table 1 is placed. Around the center position XX, a plurality of the centering is performed by holding the outer peripheral surface of the tire W (in this embodiment, five units are installed at a predetermined interval in the circumferential direction, but the number is not limited). Provided with tire positioning means 5 A.

  On the central axis XX of the support table 1, there is provided clamping means 6 x that raises and lowers the tire W and the rigid core body 2 from which the core holding mechanism 3 has been removed to a position where it does not interfere with the core holding mechanism 3. As shown in FIG. 4, a fan-shaped segment 2 a of the rigid core body 2 and a substantially trapezoidal mountain-shaped segment 2 b are provided below the center axis XX of the support table 1. A pair of elevating and lowering core separation and removal mechanisms 7a and 7b are provided which are taken out by reducing the diameter of each of the two types of segment groups 2A and 2B.

  As shown in FIGS. 4 and 5, the rigid core body 2 has two kinds of fan-shaped segments 2 a and a substantially trapezoidal mountain-shaped segment 2 b alternately in the circumferential direction using a metal material such as steel or aluminum. Are divided into a substantially cylindrical shape (in this embodiment, divided into 10 parts every 5 pieces, but the number of divisions is not limited). The rigid core body 2 is configured by alternately arranging 2a and mountain-shaped segments 2b in the circumferential direction to form a cylindrical shape.

  Further, after the vulcanization molding of the tire W or at the time of the tire molding, the plurality of fan-shaped segments 2a are drawn out in the radial direction to be separated from the mountain-shaped segments 2b. The core holding mechanism 3 is as shown in FIGS. In addition, a plurality of pedestal-shaped support members 9 are detachably disposed on the outer periphery of the central shaft 8 at predetermined intervals in the circumferential direction via fastening members such as bolts. Support plates 10a and 10b for holding the upper opening edge 2x of the rigid core body 2 from the upper and lower surfaces are detachably attached.

  Clamping means for holding the inner diameter part and the inner outer surface of the rigid core body 2 is provided at the peripheral part of the support plates 10a and 10b, and the clamping means has an inner diameter bent inwardly at the peripheral part of the support plates 10a and 10b. The holding portion and the bead ring 11 are included.

  Further, as shown in FIGS. 1, 3, and 7 to 9, the elevating device 6 provided with the clamping means 6 x is mounted on a rigid core body 2 on a support frame 12 erected on a horizontal support table 1. An elevating cylinder 13 for elevating and lowering is vertically installed on the center axis XX of the support table 1, and the support table 1 and a horizontal support plate 14 are provided at the tip of the elevating rod of the elevating cylinder 13.

  And the clamp plate 16 is arrange | positioned in parallel at the front-end | tip of the several guide rod 15 suspended so that it could raise / lower to this support plate 14, and it respond | corresponds to the division | segmentation number of the rigid core main body 2 on the said clamp plate 16. The rigid cylinder main body divided into a plurality of parts through a connecting plate 18 that is always urged in the opening direction through an urging means at the tip of the rod 17a of the clamp cylinder 17 And a presser guide 20 having a presser member 19 that supports the upper opening edge 2x of the two from the outside, and clamps the lower side surface and lower surface of each upper opening edge 2x of the rigid core body 2 divided into a plurality of parts. And a swingable clamp mechanism 21 is provided.

  The connecting plate 18 is fixed horizontally to the tip of the rod 17a of the clamp cylinder 17, and the presser guide 20 is inserted so as to be able to move up and down. A rigid core is inserted into the upper side surface of the presser member 19 via a support member 22. A pivotable clamping claw 23 for clamping the lower side surface and lower surface of the upper opening edge 2x of the main body 2 is provided, and the clamping claw 23 and the locking means 24 provided on the connecting plate 18 can be rotated via a link 25. It is connected.

  The urging means of the connecting plate 18 is composed of an elastic member 26 such as a coil spring interposed between the connecting plate 18 and the support member 22.

  The locking means 24 includes a contact plate 27 suspended from the lower portion of the connecting plate 18 and a lock claw 28 formed on the back surface of the clamp claw 23.

  As shown in FIGS. 1 and 3, the pair of core separating / removing mechanisms 7 a and 7 b disposed below the center of the support table 1 are horizontally suspended from the center axis XX of the support table 1. The pair of core separating and taking out mechanisms 7a and 7b are mounted on a support plate 30 and are configured to be moved up and down onto the support table 1 through a vertical cylinder 31 suspended from the plate 30.

  That is, the plate 30 is hung horizontally below the support table 1 via a support rod 32, and the vertical cylinder 31 is hung vertically on the plate 30. A slide table 35 slidable in the horizontal direction is placed along the guide rail 34 provided on the top, and the slide table 35 is further supported by a support member 36 through which the rod 31a of the vertical cylinder 31 can be inserted. A first holding plate 37 provided with the first core separating mechanism 7a and a second holding plate 38 provided with the second core separating mechanism 7b are placed at a predetermined interval.

  On the surface side of the first holding plate 37 and the second holding plate 38, a plurality of segment groups 2A and 2B divided into a plurality of segments as shown in FIGS. In this embodiment, five desorption cylinders 39 are arranged radially according to the number of the two types of sector segments 2a of the rigid core body 2 and the substantially trapezoidal mountain-shaped segments 2b. At the tip of 39, the segment group 2A (fan-shaped segment 2a × 5) or the segment group 2B (mountain segment 2b × 5) has a concave engagement portion 40 (see FIG. 5) provided at the center of the inner wall surface. A T-shaped engagement member 41 is provided. Further, guide rods 42 of the detachable cylinder 39 are arranged radially on the back surfaces of the first holding plate 37 and the second holding plate 38.

  The engaging member 41 is advanced and retracted by the attaching / detaching cylinder 39 and is engaged with the concave engaging portion 40 formed on the inner peripheral surface of the segment group 2A, 2B by the expansion / contraction operation of the vertical cylinder 31. Alternatively, 2B is configured to be pulled toward the center side.

  As shown in FIG. 2, the plurality of tire positioning means 5 that holds the outer peripheral surface of the tire W and performs centering includes five lock cylinders 43 around the center position XX on the support table 1. A lock arm 45 is connected to the tip of the rod of the lock cylinder 43 via a crank-shaped arm 44 and locks five locations on the outer peripheral surface of the tire W in which the rigid core body 2 is accommodated.

  When the lock cylinder 43 is contracted, the crank-shaped arm 44 pivots clockwise around the fulcrum O, so that the tip of the lock arm 45 clamps and positions the five outer peripheral surfaces of the tire W. When the lock cylinder 43 is contracted, the crank-shaped arm 44 turns counterclockwise about the fulcrum O, whereby the tip of the lock arm 45 is separated from the outer peripheral surface of the tire W and the locked state is released. The

  Next, a method for separating and taking out the tire forming rigid core will be described with reference to FIGS.

  First, in the first step shown in FIG. 14, a vulcanized tire W or an unvulcanized tire W formed on the outer peripheral surface of the rigid core body 2 composed of two types of segment groups 2A and 2B at the time of tire molding. And the core holding mechanism 3 are conveyed to the first stage S1 of the support table 1 by a conveying device (not shown) and set at a predetermined position.

  Then, on the first stage S1 of the support table 1, the support plate 10a and the bead ring 11 on the support member 9 fixed to the upper part of the core holding mechanism 3 as shown in FIG. The child main body 2 and the tire W are brought into a free state from the core holding mechanism 3. The tire W and the rigid core body 2 held by the support plate 10b and the core holding mechanism 3 on the support member 9 are moved along the guide rail 1a to the center position XX of the second stage S2 of the support table 1. To move.

  When the tire W and the rigid core body 2 held by the core holding mechanism 3 move to the center line XX position of the second stage S2 and stop, the tire W and the rigid core main body 2 reach the center line XX position of the second stage S2. Although it was waiting, the lifting / lowering device 6 descends, the upper opening edge 2x of the rigid core body 2 is clamped by the clamping means 6x, and is lifted to raise the rigid core body 2 and the tire from the core holding mechanism 3 ( The figure on the left side of the center line of FIG. 16).

  The operation of clamping the upper opening edge 2x of the rigid core body 2 by the clamping means 6x is performed by clamping the clamping means 6x lowered to a predetermined position by the lifting device 6 as shown in FIGS. When the cylinder 17 is extended, as shown in FIG. 8, the presser member 19 first comes into contact with the upper opening edge 2x of the rigid core body 2 from the outside, and then the clamp claw 23 opens the upper opening of the rigid core body 2. The lower side surface and the lower surface are clamped by turning from the inside of the edge 2x as shown in FIG.

  Then, the upper opening edge 2x of the rigid core body 2 is clamped by the clamping means 6x, and the rigid core body 2 and the tire W are separated from the core holding mechanism 3 and pulled upward. In this state, the core Only the holding mechanism 3 is returned to the first stage S1 of the support table 1, and the rigid core body 2 and the tire W that have been lifted are moved to the center position X− of the second stage S2 via the lifting device 6 and the clamping means 6x. It mounts on X (refer FIG.17 and FIG.18).

  When separating and taking out the rigid core body 2 from the tire W, as shown in FIG. 18, a plurality of (in this embodiment, 5 5) disposed on the outer periphery of the center position XX of the second stage S2. The tire W is centered by the tire positioning means 5 and the five positions on the outer peripheral surface of the tire are gripped and positioned and fixed. Specifically, as shown in FIG. 2, the lock cylinder 43 is contracted to rotate the crank-shaped arm 44 about the fulcrum O in the clockwise direction, so that the tip of the lock arm 45 is the outer peripheral surface of the tire W. The 5 positions are clamped for positioning.

  Then, as shown in FIG. 19, the first core separation mechanism 7 a that has been waiting below the center of the tire of the support table 1 is operated to extend the vertical cylinder 31 to move the rigid core body 2. It is raised to the inside and slightly below the center YY of the height position. Then, the detachable cylinders 39 arranged radially on the first holding plate 37 are extended and the T-shaped engaging members 41 provided at the distal ends of the detachable cylinders 39 are connected to the segment group 2B ( By positioning the first holding plate 37 by the vertical cylinder 31 in the lower side of the concave engaging portion 40 provided at the center of the inner wall surface of the mountain-shaped segment 2b × 5), The joint member 41 is engaged with the concave engaging portion 40.

  In this state, when the desorption cylinder 39 is contracted, the segment group 2B (mountain-shaped segment 2b × 5) is simultaneously drawn toward the center position XX side of the second stage S2, and interference occurs inside the inner diameter portion of the tire W. It moves to the position where it does not (see FIG. 19). The segment group 2B (mountain-shaped segment 2b × 5) is contracted by the vertical cylinder 31 while being held by the first core separating mechanism 7a on the first holding plate 37, and the plate 35 Lower to the top (see FIG. 20).

  In this state, the segment group 2B held by the first core separation mechanism 7a on the first holding plate 37 is moved to the standby position T1 of the slide table 35 via a cylinder or the like, and the second core The separation mechanism 7b is moved to a position below the center position XX of the second stage S2 (see FIG. 21).

  Then, similarly to the first core separating mechanism 7a, the vertical cylinder 31 is extended and moved to the inside of the rigid core body 2 and slightly below the center YY of the height position, and The detachable cylinder 39 arranged radially on the second holding plate 38 is extended to operate the T-shaped engaging member 41 provided at the tip of the detachable cylinder 39 as the segment group 2A (fan-shaped) of the rigid core body 2. The segment 2a × 5) is positioned on the lower side of the concave engaging portion 40 provided in the center of the inner wall surface, and in this state, the second holding plate 38 is raised by the vertical cylinder 31 to thereby form a T-shaped engaging member. 41 is engaged with the concave engaging portion 40.

  In this state, when the desorption cylinder 39 is contracted, the segment group 2A (fan-shaped segment 2a × 5) is simultaneously drawn toward the center position XX side of the second stage S2, and does not interfere inside the inner diameter portion of the tire W. When the segment group 2A and the segment group 2B of the rigid core body 2 are completely separated and taken out from the tire W, as shown in FIG. W is extracted and transported to the next process by a transport device (not shown).

  Further, when assembling the segment group 2A and the segment group 2B of the rigid core body 2 separated and divided as described above, the segment group 2A and the segment group 2B can be easily operated by performing the reverse operation. Can be assembled. That is, the segment group 2B (fan-shaped segment 2a × 5) is moved in the radial direction via the detachable cylinder 39 and arranged in a circular shape, and the segment group 2A (standby at the standby position T1 of the slide table 35) By moving the mountain-shaped segment 2b × 5) below the center position XX of the second stage S2, further raising it by the vertical cylinder 31, and extending the segment group 2A while holding the segment group 2A, The segment group 2A is disposed between the segment groups 2B, and the cylindrical rigid core body 2 is assembled.

  Next, FIGS. 24 to 29 show a second embodiment of the pair of core separating and taking out mechanisms 7a and 7b, which is a vertical cylinder 31 installed below the center position XX of the support table 1. FIG. The first core separation mechanism 7a and the second core separation mechanism 7b are arranged at a predetermined interval on the rod 31a of the first core separation mechanism 7a and the second core separation mechanism 7a. A plurality of desorption cylinders 39 (every five in this embodiment corresponding to the segment group 2A and the segment group 2B) are radially arranged on the first holding plate 37 and the second holding plate 38 of the mechanism 7b. .

  The method for separating and taking out the tire-forming rigid core in this embodiment is the same as in the first embodiment described above, in the middle of the rigidity disposed in the tire W on the first stage S1 on the support table 1. After the core holding mechanism 3 and the upper and lower support plates 10a and 10b are removed from the support member 9 from the core body 2 (see FIG. 24), the tire W and the rigid core body 2 are moved to the second stage S2 on the support table 1. It is slid and positioned on the center position XX.

  In this state, while waiting on the center position XX of the second stage S2, the lifting device 6 is lowered and the upper opening edge 2x of the rigid core body 2 is clamped and raised by the clamping means 6x. The rigid core body 2 and the tire are pulled up from the core holding mechanism 3. The operation of clamping the upper opening edge 2x of the rigid core body 2 by the clamping means 6x is performed by clamping the clamping means 6x lowered to a predetermined position by the lifting device 6 as shown in FIGS. When the cylinder 17 is extended, as shown in FIG. 8, the presser member 19 first comes into contact with the upper opening edge 2x of the rigid core body 2 from the outside, and then the clamp claw 23 opens the upper opening of the rigid core body 2. The lower side surface and the lower surface are clamped by turning from the inside of the edge 2x as shown in FIG.

  Then, the upper opening edge 2x of the rigid core body 2 is clamped by the clamping means 6x, and the rigid core body 2 and the tire W are separated from the core holding mechanism 3 and pulled upward. In this state, the core Only the holding mechanism 3 is returned to the first stage S1 of the support table 1, and the rigid core body 2 and the tire W that have been lifted are moved to the center position X− of the second stage S2 via the lifting device 6 and the clamping means 6x. Place on X (see FIG. 25).

  When the rigid core body 2 is separated and taken out from the tire W, a plurality of (in this embodiment, 5) arranged on the outer periphery of the center position XX of the second stage S2 as in the first embodiment. The tire W is centered by the tire positioning means 5 and the five positions on the outer peripheral surface of the tire are gripped and positioned and fixed.

  Then, as shown in FIG. 26, of the pair of upper and lower core separation mechanisms 7a and 7b that are waiting below the center of the tire, the second core separation mechanism 7b positioned on the lower side is a vertical lift means. The cylinder 31 is extended to raise the inside of the rigid core body 2 to a position slightly below the center Y-Y of the height position, and extend the desorption cylinders 39 radially arranged on the second holding plate 38. A concave engaging portion 40 provided at the center of the inner wall surface of the segment group 2B (mountain shaped segment 2b × 5) of the rigid core body 2 with the T-shaped engaging member 41 provided at the tip of the detachable cylinder 39 by operating. In this state, the second holding plate 38 is raised by the vertical cylinder 31 to engage the T-shaped engaging member 41 with the concave engaging portion 40.

  In this state, when the desorption cylinder 39 is contracted, the segment group 2B (mountain-shaped segment 2b × 5) is simultaneously drawn toward the center position XX side of the second stage S2, and interference occurs inside the inner diameter portion of the tire W. Move to the position where you do not. The segment group 2B (mountain-shaped segment 2b × 5) is contracted by the vertical cylinder 31 while being held by the second core separating mechanism 7b on the second holding plate 38, so that the plate 30 Lower to the top (see FIG. 27).

  Next, similarly to the second core separating mechanism 7b, the vertical cylinder 31 is extended to move the first core separating mechanism 7a inside the rigid core body 2 and at the center Y at the height position. The Y-shaped engagement member 41 provided at the tip of the demounting cylinder 39 is rigidly moved up slightly below -Y, and the demounting cylinders 39 radially disposed on the first holding plate 37 are extended. The first holding plate 37 is raised by the vertical cylinder 31 in this state, being positioned on the lower side of the concave engaging portion 40 provided at the center of the inner wall surface of the segment group 2A (fan-shaped segment 2a × 5) of the core body 2. Thus, the T-shaped engaging member 41 is engaged with the concave engaging portion 40.

  In this state, when the desorption cylinder 39 is contracted, the segment group 2A (fan-shaped segment 2a × 5) is simultaneously drawn toward the center position XX side of the second stage S2, and does not interfere inside the inner diameter portion of the tire W. When the segment group 2A and the segment group 2B of the rigid core main body 2 are completely separated and taken out from the tire W, the vertical cylinder 31 is contracted as shown in FIG. The tire W from which the segment group 2A (fan-shaped segment 2a × 5) of the core body 2 is lowered downward from the support table 1 and the rigid core body 2 is removed is transported to the next process by a transport device (not shown). is there.

  It is also possible to assemble the rigid core body divided by performing the reverse process described above into a cylindrical shape. In the above embodiment, it is possible to cope with a rigid core body of two or more divided groups by increasing the core separation mechanism.

  As described above, in the embodiment of the present invention, the rigid core body 2 can be automatically separated from the vulcanized tire W or the unvulcanized tire W, and can be automatically taken out and conveyed. When the rigid core body 2 is separated, the operation efficiency can be remarkably improved since it can be automatically performed without manual intervention. It is also possible to assemble the separated rigid core body by performing the reverse process of the separation process, and the entire device can be manufactured relatively easily and inexpensively and can be made compact. It is.

It is the front view made into the partial cross section of the separation extraction apparatus for enforcing the separation extraction method of the rigid core for tire shaping | molding of this invention. It is a top view of FIG. It is a side view of FIG. It is a top view of the rigid core main body which consists of two types of segment groups. It is sectional drawing of the rigid core main body and tire which were hold | maintained at the core holding mechanism. FIG. 6 is a plan view taken along the line CC in FIG. 5. It is an expanded sectional view of the raising / lowering apparatus provided with the clamp means which clamps the upper opening edge part of a rigid core main body. It is explanatory drawing of the operation state of the clamp means of FIG. It is explanatory drawing of the operation state of the clamp means of FIG. It is an enlarged plan view of the 1st holding plate of a core separation mechanism. It is a DD arrow side view of FIG. It is an EE arrow side view of FIG. It is an enlarged bottom view of the 1st holding plate of a core separation mechanism. It is explanatory drawing of the 1st process of the separation / extraction method of the rigid core for tire shaping | molding in 1st Embodiment of this invention. It is explanatory drawing of the 2nd process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 1st Embodiment of this invention. It is explanatory drawing of the 3rd process of the separation / extraction method of the rigid core for tire shaping | molding in 1st Embodiment of this invention. It is explanatory drawing of the 4th process of the separation / extraction method of the rigid core for tire shaping | molding in 1st Embodiment of this invention. It is explanatory drawing of the 5th process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 1st Embodiment of this invention. It is explanatory drawing of the 6th process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 1st Embodiment of this invention. It is explanatory drawing of the 7th process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 1st Embodiment of this invention. It is explanatory drawing of the 8th process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 1st Embodiment of this invention. It is explanatory drawing of the 9th process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 1st Embodiment of this invention. It is explanatory drawing of the 10th process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 1st Embodiment of this invention. It is explanatory drawing of the 1st process of the separation / extraction method of the rigid core for tire shaping | molding in 2nd Embodiment of this invention. It is explanatory drawing of the 2nd process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 2nd Embodiment of this invention. It is explanatory drawing of the 3rd process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 2nd Embodiment of this invention. It is explanatory drawing of the 4th process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 2nd Embodiment of this invention. It is explanatory drawing of the 5th process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 2nd Embodiment of this invention. It is explanatory drawing of the 5th process of the isolation | separation taking-out method of the rigid core for tire shaping | molding in 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support table 1a Guide rail 2 Rigid core main body 3 Core holding mechanism 2a Fan-shaped segment 2b Mountain segment 2A, 2B Segment group 2x Upper opening edge W Tire G Base XX Center position 4 Slide table 5 Tire positioning means 6 Lifting device 6x Clamping means 7a, 7b Core separating and taking out mechanism 8 Central shaft 9 Support member 10a, 10b Support plate 11 Bead ring 12 Support frame 13 Lift cylinder 14 Support plate 15 Guide rod 16 Clamp plate 17 Clamp cylinder 17a Rod 18 Connecting plate DESCRIPTION OF SYMBOLS 19 Presser member 20 Presser guide 21 Clamp mechanism 22 Support member 23 Clamp claw 24 Locking means 25 Link mechanism 26 Elastic member 27 Contact plate 28 Lock claw 30 Horizontal plate 31 Vertical Cylinder 31a Rod 32 Support rod 33 Support base 34 Guide rail 35 Slide table 36 Support member 37 First holding plate 38 Second holding plate 39 Demounting cylinder 40 Engaging portion 41 Engaging member 42 Guide rod 43 Lock cylinder 44 Arm 45 Lock arm O fulcrum

Claims (3)

A rigid core support device that supports a rigid core body composed of at least two types of segment groups divided in the circumferential direction from a vulcanized tire or an unvulcanized tire at the time of tire molding. And
The core holding mechanism includes a plurality of pedestal-shaped support members that are detachably disposed on the upper and lower surfaces of the support member at predetermined intervals in the circumferential direction on the outer periphery of the central shaft via fastening members. A rigid core support device in which a support plate for holding the core body from the upper and lower surfaces is detachably attached. The rigid core support device according to claim 1, wherein clamping means for holding an inner diameter portion and an inner outer surface of the rigid core body is provided at a peripheral portion of the support plate. 3. The rigid core support device according to claim 2, wherein the clamp means comprises an inner diameter holding portion bent inward at a peripheral edge portion of the support plate and a bead ring.

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