JP6809016B2 - How to hold the tire mold and how to install the tire mold into the container - Google Patents

Description

The present invention relates to a holding jig for a tire mold and a method for incorporating the tire mold into a container. More specifically, when the tire mold is assembled into a container or moved while having a simple configuration, etc. The present invention relates to a tire mold holding jig that can improve the efficiency and labor of the above work, and a method of incorporating the tire mold into a container using the holding jig.

When a pneumatic tire is vulcanized using a sectional type vulcanization die, a plurality of sectors constituting the vulcanization die are incorporated into a container. The container has a plurality of segments arranged in an annular shape, and each segment moves in the direction of approaching and separating from the annular center. Each sector is attached to the inner peripheral surface of the corresponding segment. Each sector attached to the inner peripheral surface of the segment closes in a reduced diameter state when the segment moves close to the annular center, and opens in a expanded state when the segment moves away from the ring. ..

Since the sector is a heavy object of about 5 kg to 20 kg, for example, a considerable amount of labor is required for the assembling work of aligning the sector at a predetermined position and fixing it with a bolt or the like. Moreover, since one set of molds has about eight sectors, a large amount of time is required for embedding work and moving work.

Therefore, a mold changing device has been proposed that enables the tire mold to be efficiently incorporated into a container (see, for example, Patent Document 1). However, in the device proposed in Patent Document 1, in addition to the member for gripping the tread mold, a driving means for driving the gripping member, a link plate, and the like are required, and the device is very complicated and large-scale. Become.

JP-A-2010-110945

An object of the present invention is a holding jig for a tire mold and a holding jig for the tire mold, which can streamline and reduce labor when assembling or moving the tire mold into a container while having a simple structure. It is an object of the present invention to provide a method of incorporating a tire mold into a container using the above.

In order to achieve the above object, the holding jig for a tire mold of the present invention is attached to a container having a plurality of segments arranged in an annular shape and moving between a position separated from the annular center and a position close to the annular center. A holding jig for a tire mold that holds a plurality of sectors used, and a mounting portion mounted on the upper surface of each of the segments arranged in a ring shape at the separation position, and the respective mounting portions. A circumferential positioning portion for positioning the circumferential position of the previously described mounting portion at a predetermined position with respect to the segment, and a fixing member for detachably fixing each of the sectors to a predetermined position of the previously described mounting portion are provided. The fixing member is a mounting bolt that penetrates the previously described mounting portion up and down and is screwed into a bolt hole formed on the upper surface of each of the sectors, and is fixed to the predetermined position of the previously described mounting portion by the fixing member. Each of the sectors is arranged in a ring shape, and each of the segments is moved downward with the container ring constituting the container in a state where the above-mentioned mounting portion is placed on the upper surface . By moving to the close position by pressing the outer peripheral surface of the segment, each of the sectors fixed to the above-mentioned mounting portion makes the outer peripheral surface face the inner peripheral surface of each corresponding segment. The feature is that it is configured to be set.

In the method of incorporating the tire mold into the container of the present invention, the tire mold container for attaching each sector to the corresponding segment using the tire mold holding jig described above. a built-way to, using said fixing member, and fixed in place assembled annularly the predetermined position of the mounting table to each of the sectors, then the mounting section in the separate position It is placed on the upper surface of each of the segments arranged in an annular shape, and the circumferential positioning portion is used to position the circumferential position of the above-described mounting portion at a predetermined position with respect to each of the segments. Then, with the above-mentioned mounting portion placed on the upper surface, each of the segments is moved downward by moving the container ring downward to press the outer peripheral surface of each of the segments and move them to the proximity position. , Each of the sectors is set with its outer peripheral surface facing the inner peripheral surface of the corresponding segment, and then a fixing bolt is inserted through which each of the sectors is inserted from the outer peripheral side of each of the segments. By screwing into the bolt holes formed on the outer peripheral surface of each of the sectors, the set can be fixed to the inner peripheral surface of each of the segments, and each of the sectors can be removed from the above-mentioned mounting portion. It is a feature.

When the holding jig for the tire mold of the present invention is used, all the sectors constituting the mold can be moved at once by moving the mounting portion in which each sector is fixed at a predetermined position by the fixing member. Can be done. Then, with the mounting portion mounted on the upper surface of each segment arranged in an annular shape, these segments are moved from a position separated from the annular center to a close position, and a circumferential positioning portion is used. Each sector can be set with its outer peripheral surface facing the inner peripheral surface of the corresponding segment. As described above, although it is a simple holding jig, it is possible to improve the efficiency and reduce the labor when assembling or moving the mold into the container.

It is explanatory drawing which illustrates the holding jig of the tire mold of this invention which a sector is fixed in a plan view. FIG. 1 is a sectional view taken along the line AA of FIG. It is explanatory drawing which illustrates the state which the mounting part of FIG. 1 is mounted on the upper surface of the segment of the separation position arranged in a ring shape in a plan view. FIG. 3 is a cross-sectional view taken along the line BB of FIG. It is explanatory drawing which illustrates the state which moved the segment of FIG. 3 to a close position in plan view. FIG. 5 is a sectional view taken along the line CC of FIG. It is explanatory drawing which illustrates the state which the mounting part was removed from the sector of FIG. It is explanatory drawing which illustrates the sector which is stored in the state attached to the holding jig in the vertical cross-sectional view. It is explanatory drawing which illustrates the sector which is cleaned while attached to the holding jig in the vertical cross-sectional view.

Hereinafter, the holding jig for the tire mold of the present invention and the method for incorporating the tire mold into the container will be described based on the embodiment shown in the figure.

The tire mold holding jig 1 of the present invention illustrated in FIGS. 1 and 2 is used when a plurality of sectors 11 constituting the tire mold 10 are incorporated into a container 5 installed in a tire vulcanizer. , Used when removing. As illustrated in FIG. 8 described later, the mold 10 is composed of a plurality of sectors 11 arranged in an annular shape, and an annular upper plate 12a and a lower plate 12b.

As illustrated in FIGS. 3 and 4, the container 5 has a plurality of segments 6 arranged in a ring shape. The outer peripheral surface of each segment 6 is inclined downward on the outer peripheral side. The inner peripheral surface of the container ring 7 that moves up and down with respect to each segment 6 slides on the outer peripheral surface of the segment 6. When the container ring 7 moves downward, each of the segments 6 arranged in an annular shape is located close to the segment 6 shown in FIGS. 5 and 6 from the position separated from the annular center CL (the position of the segment 6 shown in FIGS. 3 and 4). Move to (position). When the container ring 7 moves upward, each of the segments 6 arranged in an annular shape moves from a position close to the annular center CL to a position separated from the annular center CL.

The holding jig 1 includes a mounting portion 2, a circumferential positioning portion 3 provided on the mounting portion 2, and a fixing member 4 for detachably fixing each sector 11 to a predetermined position of the mounting portion 2. I have. The mounting portion 2 is a rigid body made of metal or the like, and is mounted on the upper surface of each of the segments 6 which are arranged in an annular shape at the separated positions. In this embodiment, an annular mounting portion 2 having an open central portion is used, but a disk-shaped mounting portion 2 having an open central portion can also be used.

The circumferential positioning unit 3 positions the circumferential position of the mounting unit 2 at a predetermined position with respect to each of the segments 6 arranged in an annular shape. In this embodiment, a protrusion protruding downward in the vicinity of the outer edge portion of the lower surface of the mounting portion 2 is the circumferential positioning portion 3.

A groove (recess 6a) extending in the radial direction from the annular center CL is formed on the upper surface of one segment 6A. By engaging the circumferential positioning portion 3 with the recess 6a, the circumferential position of the mounting portion 2 is positioned at a predetermined position with respect to each segment 6.

The circumferential positioning unit 3 is not limited to the form illustrated in this embodiment, and other forms may be adopted. Further, the circumferential positioning portions 3 are not limited to one location, and may be provided at a plurality of locations at intervals in the circumferential direction. For example, recesses 6a may be provided on the upper surfaces of all the segments 6, and circumferential positioning portions 3 corresponding to the recesses 6a may be provided. Alternatively, a groove-shaped circumferential positioning portion 3 may be provided on the lower surface of the mounting portion 2, and a protrusion that engages with the concave groove-shaped circumferential positioning portion 3 may be provided on the upper surface of the segment 6.

Bolt holes 2a penetrating in the thickness direction are formed at predetermined positions of the mounting portion 2. A mounting bolt serving as a fixing member 4 is inserted into the bolt hole 2a. The fixing member 4 through which the bolt hole 2a is inserted is screwed into the bolt hole formed on the upper surface of each sector 11, so that each sector 11 is fixed at a predetermined position of the mounting portion 2. The sectors 11 fixed at a predetermined position of the mounting portion 2 are arranged in a ring shape.

The number of fixing members 4 is not limited to one for one sector 11, but may be plural. The fixing member 4 is not limited to the mounting bolts, and any sector 11 may be detachably fixed at a predetermined position of the mounting portion 2.

Hereinafter, a procedure of attaching each sector 11 to each corresponding segment 6 and incorporating the sector 11 into the container 5 will be described using the holding jig 1.

First, as illustrated in FIGS. 1 and 2, each sector 11 is fixed at a predetermined position of the mounting portion 2 by using the fixing member 4. This fixing work does not need to be performed in the vicinity of the vulcanizer, and can be performed in a place where a large space can be secured, so that the work can be facilitated.

Next, the mounting portion 2 on which each sector 11 is fixed is mounted on the upper surface of each segment 6 which is arranged in a ring shape at a separation position as illustrated in FIGS. 3 and 4. Specifically, the mounting portion 2 is moved by using a hoist crane or the like, and the lower surface on the outer peripheral side of the position where the sector 11 of the mounting portion 2 is fixed is placed on the upper surface of each segment 6. To do.

During this mounting operation, the circumferential positioning portion 3 is engaged with the recess 6a formed on the upper surface of the segment 6A. By this engagement, the circumferential position of the mounting portion 2 is positioned at a predetermined position with respect to each segment 6. That is, each sector 11 fixed to the mounting portion 2 is positioned at a circumferential position that matches each corresponding segment 6. Further, by mounting the mounting portion 2 on the upper surface of each segment 6, each sector 11 is positioned at a vertical position matching the corresponding segment 6.

Next, the container ring 7 is moved downward with the mounting portion 2 mounted on the upper surface of each segment 6 as illustrated in FIGS. 5 and 6. Each of the segments 6 that were in the separated positions is moved to the close position by the container ring 7 that moves downward. Therefore, each sector 11 is set so that its outer peripheral surface faces the inner peripheral surface of each corresponding segment 6. When the segment 6 moves, the circumferential positioning portion 3 moves relative to the recess 6a, so that the segment 6 can be smoothly moved.

Next, each sector 11 is fixed to the inner peripheral surface of each set segment 6. For example, by screwing a fixing bolt inserted from the outer peripheral side of the segment 6 into a bolt hole formed on the outer peripheral surface of the sector 11, each segment 6 and the sector 11 are firmly fixed. Further, the fixing member 4 fixing each sector 11 to the mounting portion 2 is removed, and each sector 11 is removed from the mounting portion 2. After that, the mounting portion 2 is moved to the outside of the container 5.

Since each sector 11 set in the segment 6 is held in the segment 6, it does not easily come off. Therefore, either the work of fixing each sector 11 to the inner peripheral surface of the segment 6 or the work of removing each sector 11 from the mounting portion 2 may be performed first.

By performing the above operation, as illustrated in FIG. 7, each sector 11 is attached to the segment 6 and the incorporation into the container 5 is completed. This container 5 is installed and used in a vulcanizer. When removing each sector 11 from the container 5, the procedure reverse to the above-described procedure for incorporating each sector 11 into the container 5 may be performed.

As described above, according to the present invention, by using the simple holding jig 1, all the sectors 11 constituting the mold 10 can be moved to a desired position at one time. Therefore, it is possible to improve the efficiency and reduce the labor of the work of moving the sector 1. Moreover, it is very convenient because the sectors 11 arranged in a ring can be moved at once.

Further, by using the holding jig 1 to move each segment 6 arranged in an annular shape from a position separated from the annular center CL to a position close to the annular center CL, each sector 11 is set in the corresponding segment 6. The work to be done is completed. Therefore, the work of incorporating and removing the sector 11 into the container 5 can be greatly made more efficient and lighter.

In particular, in the case of high-mix low-volume production, the work of incorporating and removing the sector 11 into the container 5 becomes frequent. Therefore, by using the present invention, the time required for these operations can be significantly shortened, which greatly contributes to the improvement of productivity.

Each sector 11 attached to the holding jig 1 can be stored as it is as illustrated in FIG. Here, the respective sectors 11, the upper plate 12a, and the lower plate 12b constituting the mold 10 are stored in the bottomed tubular storage basket 8 having an open upper surface.

Specifically, the outer peripheral side of the lower surface of the mounting portion 2 is supported by the peripheral edge of the storage basket 8, and each sector 11 is above the lower plate 12b mounted on the bottom of the storage basket 8. Have been placed. The upper plate 12a is held by placing a portion on the outer peripheral side of the lower surface thereof on the upper surface of the mounting portion 2. When the holding jig 1 is used, the set of the constituent members (11, 12a, 12b) of the mold 10 can be compactly stored together in this way, which facilitates management.

The holding jig 1 to which each sector 11 is fixed can also be moved to the cleaning device 9 of the mold 10 as illustrated in FIG. In FIG. 9, each sector 11 is installed inside the cleaning device 9 with the holding jig 1 facing downward.

In this state, a blast material or the like is sprayed onto the inner peripheral surface of the sector 11 from the cleaning nozzles 9a arranged at the annular center of each sector 11 arranged in a ring shape. As a result, the inner peripheral surface of each sector 11 to which dirt is attached can be cleaned. In FIG. 9, although the holding jig 1 is placed downward, cleaning can be performed with the holding jig 1 facing upward.

1 Holding jig 2 Mounting part 2a Bolt hole 3 Circumferential positioning part 4 Fixing member 5 Container 6, 6A Segment 6a Recessed 7 Container ring 8 Storage basket 9 Cleaning device 9a Cleaning nozzle 10 Tire mold 11 Sector 12a Upper plate 12b Lower plate CL annular center

Claims (4)

A tire mold holding jig that holds a plurality of sectors used by being attached to a container having a plurality of segments arranged in an annular shape and moving between a position separated from the annular center and a position close to the annular center. hand,
A mounting portion mounted on the upper surface of each of the segments arranged in a ring shape at the separation position, and a circumferential direction for positioning the circumferential position of the previously described mounting portion at a predetermined position with respect to each of the segments. A positioning portion and a fixing member for detachably fixing each of the sectors to a predetermined position of the pre-described mounting portion are provided, and the fixing member penetrates the pre-described mounting portion up and down and is placed on the upper surface of each of the sectors. It is a mounting bolt that is screwed into the formed bolt hole, and each of the sectors fixed at the predetermined position of the previously described mounting portion by the fixing member is arranged in an annular shape, and the previously described mounting portion is The above-mentioned description is made by moving each of the segments to the close position by pressing the outer peripheral surface of each of the segments by moving the container ring constituting the container downward while the segments are placed on the upper surface. A tire mold holding jig characterized in that each of the sectors fixed to the placement portion is set so that its outer peripheral surface faces the inner peripheral surface of each of the corresponding segments. The circumferential positioning portion is a protrusion that projects downward from the previously described mounting portion, and by engaging this protrusion with at least one recess formed on the upper surface of the segment, the front of each of the segments is The holding jig for a tire mold according to claim 1, wherein the circumferential position of the mounting portion is positioned at a predetermined position. A method of incorporating each of the sectors into a container of a tire mold to be attached to each of the corresponding segments using the tire mold holding jig according to claim 1 or 2 .
Using the fixing member, and fixed in place assembled annularly the predetermined position of the mounting table to each of the sectors, then each disposed annularly the mounting section in the separate position It is placed on the upper surface of the segment, and the circumferential positioning portion is used to position the circumferential position of the pre-described placement portion at a predetermined position with respect to each of the segments, and then the pre-described placement portion is placed. Each of the sectors can be moved downward by moving the container ring downward to press the outer peripheral surface of each of the segments and move them to the close position. The outer peripheral surface is set so as to face the inner peripheral surface of each of the corresponding segments, and then a fixing bolt inserted through the outer peripheral side of each of the sectors is applied to the outer peripheral surface of each of the sectors. A tire mold characterized in that it is fixed to the inner peripheral surface of each of the set segments by screwing into the formed bolt holes , and each of the sectors is removed from the above-mentioned mounting portion. How to embed in a container. At the stage of storing each of the sectors that are not attached to the container, the fixing member is used to fix each of the sectors to the predetermined position of the annular pre-described portion in an annularly assembled arrangement. Then, the outer peripheral side portion of the lower surface of the mounting portion is supported on the upper end of the peripheral edge of the bottomed tubular storage basket with the upper surface opened, and each of the sectors is mounted on the bottom portion of the storage basket. The annular upper plate is arranged above the annular lower plate, and the annular upper plate is composed of the sector, the lower plate, and the upper plate, respectively, by placing and holding the outer peripheral side portion of the lower surface thereof on the upper surface of the above-described mounting portion. The method for incorporating a set of tire molds into a container according to claim 3, wherein the set of tire molds is stored in the storage basket.

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