JPS6082310A - Apparatus for vulcanizing tire - Google Patents

Abstract

PURPOSE:To increase the outer diameter of a vulcanizable tire and to make it possible to disassemble segments within a short period, by providing a lever the effort end of which is positioned over a segment of an upper platen, and the force exerting end of which is positioned inside of the segment. CONSTITUTION:A lever 34 is attached to an upper platen rotatably about a pin 38, and rollers 35, 37 are attached to opposite ends of the lever 34 rotatably about pins. Therefore, in the case where a side mold 23 is opened to remove a vulcanized tire 32, when a bolster plate 26 and an outer ring 27 are lifted, a cam section 27a of the outer ring 27 abouts against the roller 35, the lever 34 is rotated counterclockwise, the roller 37 abuts against the inner circumference of a segment 29, and the segment is moved radially outward in a horizontal direction. Thus, guide keys and the corresponding grooves for opening segments are not reguired, the number of steps of machining and assembling can be reduced, the radial thickness of the segment 29 can be decreased, and the outer diameter of a vulcanizable tire can be increased. A longer period is not required to disassemble the segments.

Description

[Detailed description of the invention] The present invention relates to improvements in tire vulcanizers.

A conventional tire vulcanizer is explained with reference to Figs. 1 to 4. In Figs. 1 and 2, (1) is an upper mold, (2) is a lower mold, and (2) is a lower mold.
3) is a side mold divided into multiple parts in the circumferential direction, (4) is an upper platen, (5) is a lower platen, and (6) is a bolster.
plate, (force is the outer ring, (8) is the guide key,
(9) is the segment), (101 is the fluid pressure cylinder (
αυα3)Q5) is a bolt, 041 is a guide plate, and a side mold (3) divided into multiple parts in the circumferential direction is a segment (9) corresponding to each side mold (3). ) is fixed. Also, the guide plate (14)
Q41 is fixed to the center of each segment (9) with a bolt 0ω, and a single-shaped groove is formed into which the outer ring (force side guide key (8)) is slidably inserted. In addition, the upper mold (1) is fixed to the upper platen (4) by bolts, and the upper platen (4) is attached to the piston rod (1) of a fluid pressure cylinder attached to a beam (not shown).
01. Also, the bolster plate (6)
is fixed to a beam (not shown), fixed to the Polscoop plate (6) by an outer ring (force is bolt α]), the lower mold (2) is fixed to the lower platen (5), and the lower platen (5) is fixed to the lower platen (5). An upper guide key (16) fixed to a base (not shown) and slidably inserted into the upper platen (4) is fixed to the upper surface of each segment (9), and is vulcanized. To take out the tire (12), a beam (not shown) is raised, each side mold (3) is opened radially outward, and then the two molds (1) and each side mold (3) are injected with fluid. This is done by raising the piston rod (800) of the pressure cylinder. At this time, since the valley segment (9) protrudes below the outer ring (sword), the heat dissipation of the segment (9) is large.
) is pulled up to position the upper mold (1) and each side mold (3) inside the outer ring (7) to reduce heat radiation. In addition, each guide key (8) is connected to each segment (9) when the outer ring (7) rises.
Each upper inner key (16) lifts each segment (9) and moves the segment (9) radially inward when the piston rod 00) of the hydraulic cylinder rises. It has the role of moving towards the other direction.

In the tire vulcanizer described in f8if, the segment (9) is divided into a plurality of segments in the circumferential direction in order to open the segment (9).
) A guide key (8) is provided in the center of the inclined surface part of the press, and an upper guide key (IO) is provided on the upper surface of the segment (9) to position the segment (9) within the outer ring (7) when the press is opened. This resulted in the following drawbacks.

(1) Since the groove for the guide key (8) is machined on the sloped surface of the segment (9), the number of man-hours required is correspondingly large.
11) Since the groove of the guide key (8) is machined on the sloped surface of the segment (9), it is necessary to make it larger than the thick wall of the segment (9), so it is necessary to make the tire vulcanizable. (It is not possible to increase the outer diameter of the moving outer ring (7).
) to attach the guide key (8), which requires a large number of man-hours. (Because of the IVI guide key (8), it takes a lot of time to assemble the segment (9) to the outer ring (7) and upper platen (4), and to separate the segment (9) from these. The disadvantage was that it required

The present invention deals with the above-mentioned problems, and the upper and lower fl:b
``Machi 111 hair'' Niprade/, a stopper mold attached to the lower surface of the same platen, a lower platen fixed below the upper platen 2, and several lower metal plates on the upper surface of the lower platen. a mold, a side mold that is divided into multiple parts in the circumferential direction and can be brought into close contact with the outer peripheries of the upper mold and the lower mold; A polscoop plate to be pressed down, an outer ring attached to the polscoop plate and having a truncated conical surface formed on the inner surface surrounding the above-mentioned side mold, and an outer ring attached to the outer periphery of the side mold, respectively. A segment that is attached and supported by the upper platen so as to be movable in the radial direction of the mold and is formed with a slope that engages with the inner surface of the aqueous cooling, and the upper platen swings respectively. a lever that is supported such that the lever is positioned in the vertical movement path of the outer ring above the segment, and the operating end is located in the movement path of the inner segment of the segment. The purpose of the curing machine is to increase the outer diameter of the tire that can be cured. Another object of the present invention is to provide an improved tire vulcanizer that can reduce the number of processing steps.

Next, the tire vulcanizer of the present invention will be explained with reference to an embodiment shown in FIGS. 6 to 11. (21) is an upper mold, (2) is a lower mold, (C) is a side mold, (2) is the upper platen,
Q5) is the lower platen, c! 6) or bolster plate,
C force is the outer ring, 4 is the segment, (301 is the piston rod of the fluid pressure cylinder (not shown), C (IK
9 bolts, 041 is the lever, C351 o'n is the roller, C dummy is the upper guide key, C (goods) (g) is the pin, and the side mold (c) is divided into multiple parts in the circumferential direction, and the same It is divided into segments 09) and fixed to each segment 09) corresponding to each side mold (c). Also, the upper guide key (G)
ga Sedamen) e! It is fixed to the upper surface of [, and inserted into the guide groove of the upper platen C (a), so that it can move in the radial direction. Further, the upper mold (27) is fixed to the upper platen 04J by bolts n, and the upper platen 04) is connected to a piston rod (t) of a fluid pressure cylinder attached to a beam (not shown). In addition, the CI'fil is fixed to a beam (not shown), the outer ring is fixed to Porto C (+1 to Polskup plate 06), and the lower mold (phantom is fixed to the lower P2ten ω). The lower platen (25) is fixed to the base (not shown) and the lever 4) is rotatably attached to the upper planar 7 (24+) by pin T38),
5) C37) is rotatably attached to both ends of the bottle (depending on the lever, υ).

Next, the operation of the tire vulcanizer will be explained. Vulcanized tire 0
When opening the side mold (2:9) to take out 2,
A beam (not shown) is raised. Then, the polster plate (21) and the outer ring (271) rise, the cam part (27α) of the outer ring (2'0) contacts the roller c3i, the lever C4 counterclockwise rotates, and the roller Gn moves to the segment C. Segment shield +11 moves horizontally outward in the radial direction while being attached to the inner periphery of the spring (7th and 8th positions).
Figure Reference 1 (α). As the beam continues to rise, the piston rod C3 (11) of the hydraulic cylinder as well as the upper platen (
24) also rises, segment c29) opens completely, and the side mold (c) passes over the outer diameter of the tire and rises (see Fig. 8). The piston rod of the fluid pressure cylinder
A). Then, the upper platen Q41 rises, and at the same time segment C is lifted up from the upper guide key Cl)K. ! The sloped surface of 91 is pushed by the sloped surface part of the outer ring (two forces), and the segment/[91 and side mold (c) close radially inward (see Fig. 9). When closing the side mold (7!) radially inward to sulfur, lower the piston rod of the fluid pressure cylinder from the state shown in Figure 9, and open the side mold (7!) once. state (8th
state), and then lower the beam (not shown). Then, the lower surface of segment (c79) comes into contact with the lower platen (two), and as the beam continues to descend, the inclined surface of actuator ring tJ'i) comes into contact with the inclined surface of segment (c), and the sedamen) CI! ! J) moves horizontally inward in the radial direction. As a result, Cytobi) type 2 rz:
(i closes. At this time, the force of the piston lock +" C3o of the fluid pressure cylinder) is transmitted to the lower platen 0 (+) through the segment (to).

Tire vulcanization of the present invention (as described above, the configuration includes an upper platen that is movable up and down, an upper mold attached to the lower surface of the 1tiI upper platen, a lower platen fixed below the upper platen, and A lower mold attached to the upper surface of the platen, a side mold that is divided into a plurality of parts in the circumferential direction and can be closely attached to the outer periphery of the upper mold and the upper h1 lower mold, and a side mold located above the upper platen. an outer ring which is attached to the bolster plate and has a truncated conical surface formed on its inner surface surrounding the lead mold; a segment that is attached to the outer periphery of the side mold, is supported by the upper platen so as to be movable in the radial direction of the upper side mold, and has an inclined surface that engages with the inner surface of the outer ring; a lever, which is swingably supported by each of the upper platens, and whose end is located in the vertical movement path of the outer ring above the segment, and whose working end is located in the movement path of the inner segment of the segment; Since the above-mentioned action is performed, the system key (8) and its benefits for opening each segment are no longer required, reducing the number of man-hours for processing and assembly.
C), : The thickness of tr in the radial direction can be made thinner, and the addition (i
It is possible to increase the outer diameter of the tire.Also, the guide key (8) and its groove are not required, making it easy to assemble and disassemble segments from the outer ring and upper platen. It has an effect that does not require much time.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications may be made to the pronation without departing from the principles of the present invention. It is something.

[Brief explanation of the drawing]

Figure 1 is a longitudinal side view showing a part of a conventional tire vulcanizer in a closed state, Figure 2 is a cross-sectional plan view at that time, and Figure 6 is a
4 is a vertical 1111 side view showing the open state, FIG. 5 is a 4A 1m plan view at that time, and FIG. 6 is a 6f tire adding machine according to the present invention. FIG. 7 is a vertical side view showing a partially closed state of an embodiment; FIG. 7 is a vertical side view showing a partially opened state; FIG. Figure 10 is a vertical side view showing the fully opened state; Figure 11 is a vertical side view taken along the line X-X in Figure 6;
FIG. 3 is a cross-sectional plan view taken along line XI. (21)...Lower mold (22)...Lower mold (2:+
+...Side mold e・1)...Upper platen (25
)...Lower platen (2ii)...Porsk plate (1st)...Outer ring (2i+)...
Segment mountain)... Agent Aki Tsuji Patent attorney Shige Okamoto 6 other people Figure 1 Figure 5 Figure 9 Figure 22 Figure 10 Figure 11

Claims (1)

[Claims] An upper platen that is movable up and down, an upper mold attached to the lower surface of the upper platen, a lower platen fixed below the upper platen, a lower mold attached to the upper surface of the lower platen, and a side mold that is divided into a plurality of parts and can fit tightly onto the outer periphery of the upper mold and the lower mold; a bolster plate that moves up and down at a position above the upper platen to push down the upper platen; An actor ring is attached to the scoop plate and has a truncated conical surface formed on its inner surface and surrounds the side mold, and an actor ring is attached to the outer periphery of the side mold and is connected to the upper platen. A segment supported so as to be movable in the radial direction and formed with a slope that engages with the inner surface of the outer ring, and an outer ring above the segment that is swingably supported by each of the upper platen. A tire vulcanizer comprising: a lever located in the vertical movement path of the segment, and a lever having an active end located in the advancing/retracting path of the segment inside the segment.