JPH0523566B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a tire vulcanizer, and particularly to an apparatus for vulcanizing unvulcanized retreaded tires.

<Prior Art> As a conventional device for supplying an unvulcanized tire to a retreaded tire vulcanizer, there is one shown in FIGS. 7 and 8. In the figure, reference numeral 1 denotes a loading loader main body, which is a substantially U-shaped flat plate, on the outer edge of which a shallow V-shaped receiving plate 2 is fixedly arranged, and has guided parts 3, 3. . As shown in FIG. 7, this main body 1 has an unvulcanized tire 5 placed on a receiving plate 2 with the plate surface substantially vertical at a tire delivery position A on the outside of a vulcanizer 4. It is driven by a main body drive device that is not equipped with a main body, moves along the guide rail 6, and stops at the tire delivery position B shown by the imaginary line 1a in FIG. In this state, the lower ring 7 of the vulcanizer 4 is raised, whereby the lower ring 7 receives the unvulcanized tire 5, and the loader main body 1 is returned to the original outer tire delivery position A. At this time, the center O ₁ of the unvulcanized tire 5 and the center O ₂ of the lower ring 7 are manually aligned. Then, the upper ring 8 of the vulcanizer 4 descends to hold the tire with the upper and lower rings 7, 8, and the upper and lower rings 7, 8 descend together, the molds 9, 10 close, and vulcanization begins. be exposed. When vulcanization is completed, the mold 9,
10 opens and the lower ring 7 and upper ring 8 holding the vulcanized tire rise together to position B, then the upper ring 8 rises leaving the vulcanized tire on the lower ring 7, and then the loader body 1 is again moved to the tire delivery position B, and the lower ring 7 is lowered to deliver the vulcanized tire to the loader main body 1. Subsequently, the loader body 1 returns to its original outward position A, the supported vulcanized tires and unvulcanized tires are exchanged, and the above operation is repeated.

<Problems to be Solved by the Invention> According to the conventional input loader, the loader main body 1
When the unvulcanized tire 5 is delivered to the lower ring 7 of the vulcanizer 4, the center of the tire and the center of the lower ring do not match. This is because the receiving plate 2 is fixed to the loader body 1, so that if the outer diameter of the tire is different, the center position of the tire on the loader body 1 will be different. For this reason, when the unvulcanized tire 5 is delivered to the lower ring 7, the operator must perform a manual centering operation. This necessitates pressing the automatic start button to start vulcanization after the centering operation, which has been a cause of not being able to automatically feed tires to the vulcanizer.

This invention attempts to achieve complete automation of tire vulcanization by enabling unvulcanized tires with different outer diameters to be properly centered on the input loader body at the tire receiving position outside the vulcanizer. It is something.

<Means for solving the problems> The means of the present invention is such that the loader body has a plate shape,
One surface is used as a tire support surface, and a tire support member is protruded from the outer edge of the support surface so as to contact the outer periphery of the tire at two locations, one at the tire receiving position outside the tire vulcanizer and the other at the tire vulcanization device. Move along the guide rail between the tire supply position between the upper and lower rings in the sulfurization device, and descend vertically or outward with the tire support surface facing outward at the tire receiving position below the receiving member side. The support member is positioned so as to abut the outer circumference of the tire and support the tire in an inclined state,
In the tire curing apparatus, the tire curing device is equipped with a loading loader that is positioned horizontally at the tire supply position with the predetermined center of the main body aligned with the center axis of the ring and the tire support surface facing upward;
The receiving member is provided so as to be movable forward and backward toward the center of the main body, and a contact member is separately provided at a different position from the receiving member so as to be movable forward and backward toward the center of the main body in the same manner as the receiving member. The centering device for the loading loader is characterized in that a member drive unit is provided for interlocking both members so that the distances between the contact member and the center of the main body are always equal.

<Operation> According to the means of the present invention, the receiving member and the abutting member are synchronously moved forward and backward toward a predetermined position on the loader main body, for example, toward the center of the main body, by the member driving section. The positions of both members are always the same distance from a predetermined position on the loader main body, for example, the center of the main body, so both members are positioned at a position where the distance from the predetermined position of the main body is greater than the radius of the tire. When the tire is placed on the loader body at the tire receiving position so that its outer periphery is in contact with the receiving member, the contact member is located away from the tire outer periphery. From this state, when both members are synchronized and moved toward the predetermined position of the main body by the member driving section, the contact member also comes into contact with the outer periphery of the tire. A state in which both members are in contact with the outer periphery of the tire is a state in which the predetermined position of the loader main body and the center of the tire coincide. Therefore, the tire is properly centered on the loader body. The predetermined position of the loader body is predetermined so that it coincides with the center axis of the upper ring and lower ring of the vulcanizer at the tire supply position where the loader body supplies tires to the vulcanizer. When the loader body is then moved along the guide rail to the tire supply position, the center of the tire is properly centered with respect to the center of the lower ring at the tire supply position on the loader body. When the lower ring rises in this centering state, the tire is delivered to the lower ring with its center aligned with the lower ring.

<Example> An example of the present invention will be described using FIGS. 1 to 6. In the figure, 20 is the loader main body, 21
is a guide rail, 22 is a loader main body drive device, 23
24 is a receiving member, 24 is an abutting member, and 25 is a member driving portion.

As shown in FIGS. 1 to 5, the loader main body 20 has a substantially U-shaped plate shape with a notch large enough to allow the lower ring 7 of the vulcanizer 4 to pass through the center, and one The surface is a tire support surface 30, and a tire support member 2, which will be described later, is attached to the outer edge of the support surface 30.
3 is installed protrudingly. In addition, the loader main body 20 is
As seen in FIG. 4, each side has rollers 31, 31 as guided parts.

As shown in FIGS. 1 and 2, the guide rails 21 are located at positions on both sides of a tire supply position B inside the vulcanizer 4 and at a tire receiving position A outside the vulcanizer on the front side of the vulcanizer 4. A horizontal portion 21a, a curved portion 21b, and a vertical portion 21 are provided across both side positions, and are parallel to each other on both sides.
It consists of c. This guide rail 21 has grooves 32 of a predetermined width on both sides for guiding the rollers 31, and the loader main body 20 is located outside the front side of the vulcanizer 4 as shown in FIGS. Tire receiving position A and imaginary line 20 in Figures 1 and 5
It is provided so that it can be moved between it and the tire supply position B in the vulcanizer as shown in a.

The loader main body is driven by a motor M, for example, as shown in FIG. 5 as a first embodiment. When the motor M rotates, the rotating arm 35 rotates via the shaft 34, and the loader main body 20 is driven via the protrusion 36, and the loader main body 20 rotates around the roller 31 while rotating the supporting surface 30. As the roller 31 gradually approaches the upper horizontal state, the roller 31 moves along the guide rail 21 from its vertical portion 21c through the bent portion 21b to reach the horizontal portion 21, and the loader body 20 becomes horizontal, as shown in FIGS. It stops at the tire supply position B shown by the imaginary line in the figure. When the motor M rotates in the reverse direction, the loader main body 20 returns to the original tire receiving position A shown by the solid line in the figure by the reverse operation.

As shown in FIGS. 3 to 5, the receiving member 23 is attached to a base 40 provided along the tire support surface 30 of the loader main body 20 at a predetermined main body center position.
Tire support bars 41, 41 are protruded in parallel so that they are equidistant from O ₁ , and the support surface 30
A support portion 46 passing through long holes 37, 37 provided in the
The base portion 40 connected to the nut 50 screwed into the male thread 48 by a screw 46 engages with a guide portion 42 provided on the loader body 20 facing toward the main body predetermined position O ₁ side, and the base portion 40 is connected to the main body center position together with the tire receiving bars 41 and 41. It is possible to move forward and backward to the _O1 side. The center position O ₁ of the loader body 20 is a position that coincides with the central axis O ₂ of the vulcanizer upper and lower rings 7 and 8 when the loader body 20 is in the tire supply position B. The tire receiving bars 41, 41 protrude approximately horizontally when the loader main body 20 is in the tire receiving position A shown by the solid line in the figure, and when an unvulcanized tire is placed thereon so that the outer periphery of the tire is in contact, the tire is The vertical plane passing through the center coincides with the center line of the main body. Note that the receiving bars 41, 41 may be replaced with conventional receiving plates.

The contact member 24 is provided at a position different from the position of the receiving member 23 by, for example, 90 degrees with respect to the main body center position O ₁ of the loader main body 20, and has a base portion provided along the tire support surface 30 of the loader main body 20. 43, tire indicator bars 44, 44 are provided in parallel and protruding at positions equidistant from the center position _O1 of the main body.
A base 43 connected to a nut 50 screwed into a male screw 51 by support parts 49, 49 passing through elongated holes 38, 38 provided in the support surface 30 is guided toward the main body predetermined position O1 provided in the loader main body ₂₀ . 45, and can move forward and backward together with the tire indicator bars 44, 44 toward the main body center position _O1 . In addition,
There may be only one instruction bar.

The member driving section 25 moves the receiving member 23 and the abutting member 24
The position is adjusted by moving each of them forward and backward in synchronization with respect to both. Receiving member 23
The base 40 of the tire support surface 30 of the loader main body 20
The nut 47 is connected to the nut 47 by a support portion 46 passing through the elongated holes 37, 37 on the opposite surface of the nut 47.
7 is rotatably supported by a bearing 33 on the loader main body 20. By rotating this male screw 48, the receiving bar 4
1 and 41 can be moved forward and backward. In substantially the same way, the abutment member 24 also has its base 43
A nut 50 is connected to support parts 49, 49 passing through long holes 38, 38 on the opposite side of the support surface 30, and a male screw 51 which is screwed into this nut 50 is supported, and the male screw 51 cannot be rotated. The abutment member 24 can be moved forward and backward. The male screw 51 has a handle 52 for rotational operation attached to one end close to the outer edge of the loader body 20, and a bevel gear 53 at the other end. Male thread 51
The interlocking portion 54 is provided so that the rotation of the screw is directly transmitted to the male screw 48 without increasing or decelerating it. The interlocking portion 54 includes the bevel gear 53, a bevel gear 55 meshing with the bevel gear 55, a shaft 56 thereof, a shaft 58 connected to the shaft 56 via a universal joint 57, and a shaft 58.
This configuration includes a shaft 60 connected to the shaft 60 via a universal joint 59, a bevel gear 61 provided on the shaft 60, and a bevel gear 62 that meshes with the bevel gear 61 provided on the male thread 48. Each of the shafts 56, 58, and 60 is supported along a surface of the loader body 20 opposite to the tire support surface 30. Each bevel gear 53, 55, 6
1 and 62 have the same number of teeth, respectively, and male screws 48 and 5
1 have the same pitch. Therefore, handle 5
2, the receiving member 23 and the abutting member 24 move forward and backward in the same manner.

In the tire vulcanizer equipped with the centering device in the loader configured as described above, unvulcanized tires 5 are supplied in the following manner. That is, first, as shown in FIG. 6a, in a vulcanizing machine in a standby state in which the upper frame 79 is raised together with the upper mold 9, the upper ring 8 is raised, and the lower ring 7 is raised halfway, the charging loader main body is 20 is at the tire receiving position, and the take-out loader 63 is at the tire delivery position C. The unvulcanized tire 5 is placed on the loader main body 20 at any time while the previous tire is being vulcanized.
4 comes into contact with the outer periphery of the tire 5 to align the center of the tire 5 with the center O ₁ (predetermined position) of the loader main body 20.

When the vulcanization of the previous tire is completed and the vulcanized tire 5a is taken out, the loader main body drive device 22 is operated in conjunction with this, and the input loader main body 20 is moved to the tire supply position as shown in FIG. Move to B. In this state, the center O ₁ of the loading loader body, that is, the center of the unvulcanized tire 5, is the center of the upper and lower rings 8 and 7.
When the lower ring ₇ rises, the beat portion is accurately supported by the lower ring 7 as shown in c of the same figure. Subsequently, the loader main body driving device 22 performs a return operation, and the loader main body 20 returns to the tire receiving position A as shown in FIG. Next, the vulcanizer 4 releases the upper ring 8,
The mold is closed by lowering the upper frame 79, the upper mold 9, and lowering the lower ring 7. At this time, the upper ring 8
first comes into contact with the upper bead portion of the tire 5, and the tire 5 comes into a state where the bead portion is sandwiched between the upper and lower rings 8, 7, and then descends to close the upper and lower molds 9, 10. Then, vulcanization is performed under predetermined conditions. After vulcanization, the molds 9 and 10 are opened, and the upper stand 7
9. The upper mold and the upper and lower rings rise and return to the same state as in Figure d.

Next, the tire take-out loader moves to the tire receiving position B as shown in FIG. Subsequently, the lower ring 7 descends a little, thereby transferring the vulcanized tire 5a to the take-out loader 63. The take-out loader 63 that has received the tire 5a returns to the delivery position C, as shown in FIG. 5F, and releases the tire 5a. Tire 5
a is a conveyor provided below (not shown)
sent upwards. After the loader body 20 returns to the tire receiving position A until the vulcanization is completed, the unvulcanized tire 5 to be vulcanized next is placed on the loader body 2.
If it is set to 0, the above operation will be repeated. The centering operation of the unvulcanized tire 5 of the same size with respect to the loader main body 20 is not necessary thereafter if it is performed for the first tire.

Although the abutment member 24 in the above embodiment is provided on one side, it may be provided on both sides facing each other. In that case, the additional abutment member is also moved forward and backward in conjunction with the addition.

<Effects of the Invention> According to the present invention, even if the type of tire, that is, the outer diameter of the tire changes, it can be centered on the input loader main body at the tire receiving position, so the tire can be delivered to the lower ring in the vulcanizer device. This eliminates the need for manual centering operations after tire vulcanization, making it possible to completely automate tire curing. Furthermore, compared to the conventional method, the degree of freedom in timing of supplying tires to the loading loader is greatly increased. That is, when the input loader is at the tire receiving position, unvulcanized tires can be loaded at any time, and unlike the conventional system, it is not restricted to a specific time such as when vulcanization is completed. Therefore, the degree of freedom for the worker increases. Further, according to the present invention, the basic configuration of the loading loader is such that the loader body is tilted vertically or downwardly outward with the receiving member side facing downward and the tire supporting surface facing outward at the tire receiving position, and the receiving member is attached to the outer periphery of the tire. When the tire is moved along the guide rail to the tire supply position, the tire support surface is positioned horizontally, so the tire receiving position is vulcanized as in the example. By installing it close to the side of the device, it can be formed so that it does not take up much space, and since the tire is received with the tire axis horizontal or diagonal, the tire can be rolled without being completely lifted. Therefore, it is possible to easily feed tires to the tire receiving position either by machine or manually. , a centering function can be easily added without impairing these characteristics at all.

The present invention is applicable not only to retreaded tires but also to new tire vulcanizers.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view showing one embodiment of the present invention, Fig. 2 is a schematic front view of the same embodiment, Fig. 3a is an enlarged plan view of the input loader portion of the same embodiment, and Fig. 3b is FIG. 4 is a front view of a portion corresponding to FIG. 3, FIG. 5 is a right side view of a portion corresponding to FIG. 3, and FIGS. 6 a to f are operations of the same embodiment. FIG. 7 is a schematic side view of a loader of a conventional tire vulcanizer, and FIG. 8 is a front view of the same loader corresponding to FIG. 7. 7...Lower ring, 8...Upper ring, 20...
...Input loader main body, 21...Guide rail, 22...
...Feeding loader main body drive device (motor), 23...
Reception member, 24...Abutting member, 25...Member driving section, 54...Interlocking section.

Claims (1)

[Scope of Claims] 1. The loader main body is plate-shaped, one surface is a tire support surface, and a tire support member is provided protruding from the outer edge of the support surface so as to come into contact with the outer circumference of the tire at two places. is moved along the guide rail between the tire receiving position on the outside of the tire vulcanizing device and the tire supplying position between the upper and lower rings in the tire vulcanizing device, and at the tire receiving position, the The support member is positioned so as to support the tire by contacting the outer periphery of the tire in a vertical or downwardly inclined state with the tire support surface facing outward, and at the tire supply position, the support member In a tire vulcanizing device comprising a loading loader positioned horizontally with its center aligned with the center axis of the ring and with the tire support surface facing upward, the receiving member is provided so as to be movable forward and backward toward the center of the main body, and Similar to the receiving member, an abutting member is provided at a different position from the receiving member so that it can move forward and backward toward the center of the main body, and the distance between the receiving member and the abutting member from the center of the main body is always equal. A tire vulcanizing device characterized in that a centering device for an input loader is configured by providing a member drive unit that interlocks the members of the tire vulcanizing device. 2. In the device according to claim 2, the member driving section has male threads that are threadedly engaged with the receiving member and the abutment member and extend along the advancing and retracting directions of each of the members, and by rotation of the male threads. A tire vulcanizing device characterized by being configured to move both members forward and backward. 3. The tire vulcanizing device according to claim 3, wherein the male screw screwed into the abutment member is configured to be rotationally driven by a handle.