Valve rod sealing device of capsule type quick-opening vulcanizing tank

Abstract

The utility model relates to a valve rod sealing device of a capsule type quick-opening vulcanizing tank, and belongs to the field of tire vulcanizing devices. A center mechanism sealing gasket seat is arranged in the middle of the middle die core mechanism, a sealing gasket outer ring with a center mechanism sealing gasket embedded inside is placed at the position of the center mechanism sealing gasket seat, a center mechanism conical gasket is installed between a center mechanism conical gasket seat and a conical gasket fastening annular nut, and a conical gasket outer conical face is arranged on the outer surface of the center mechanism conical gasket. A conical pad outer chamfer is arranged at the lower end of the center mechanism conical pad, a conical pad positioning step is arranged at the upper end of the center mechanism conical pad, conical pad positioning step chamfers are arranged on the upper face and the lower face of the conical pad positioning step, and a conical pad inner straight hole is formed in the bottom half part in the center mechanism conical pad. Two conical pad inner conical holes are formed in the middle of the interior of the center mechanism conical pad, a conical pad arc inverted lip is arranged at the joint of a large conical hole and a small conical hole of the two conical pad inner conical holes, and a conical pad horn mouth is formed in the upper portion of the interior of the center mechanism conical pad.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tire vulcanization device, in detail is a kind of capsule type quick-opening door vulcanization tank valve rod sealing device. BACKGROUND

[0002] It is known that in the field of tire manufacturing and processing, there is a vulcanization process that uses a quick-opening door vertical tank capsule type vulcanization tank for vulcanization. The characteristics of tank vulcanization are that the mouth pad is used for sealing between the mold and the mold, and the valve rod and the conical sealing pad are used for sealing between the outer surface of the mold and the vulcanization capsule, forming a circulating channel. If the sealing is not strict, it will directly affect the internal and external quality of the product. The traditional design of the conical sealing pad is that the inner hole is slightly smaller than the outer diameter of the valve rod. Due to frequent use, friction and wear occur between the valve rod and the inner diameter of the conical sealing pad, and the aging effect caused by high temperature of the medium, which easily leads to leakage, resulting in large area lack of glue due to leakage, or directly leading to tire scrap due to insufficient internal pressure and serious lack of glue, which has great quality risk. The conical sealing pad of the vulcanization tank valve rod must be replaced in time and frequently. Frequent replacement will directly lead to the loss of production efficiency. If replacement is not timely or due to quality problems of the valve rod conical sealing pad, it will directly lead to tire scrap, greatly increasing the cost of labor and materials. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a kind of capsule type quick-opening door vulcanization tank valve rod sealing device, solves the problem that the valve rod and the conical sealing pad between the outer surface of the mold and the vulcanization capsule are sealed frequently, which leads to friction and wear between the valve rod and the inner diameter of the conical sealing pad, resulting in leakage, large area lack of glue, or directly leading to tire scrap due to insufficient internal pressure and serious lack of glue.

[0004] The utility model discloses a technical scheme that solves its technical problem is: a capsule formula quick -opening door vulcanization jar valve rod sealing device is equipped with mould center mechanism, and the mould center mechanism is equipped with center mechanism conical gasket seat, and the top of center mechanism conical gasket seat is equipped with conical gasket fastening ring shape silk female, and the middle position of mould center mechanism is equipped with center mechanism sealing gasket seat, and center mechanism sealing gasket seat position places the sealing gasket outer ring of inner inlay center mechanism sealing gasket, and valve rod connects center mechanism conical gasket seat and center mechanism sealing gasket seat into 90 degrees right angle, and center mechanism conical gasket is installed between center mechanism conical gasket seat and conical gasket fastening ring shape silk female, and conical gasket fastening ring shape silk female fastens and compresses center mechanism conical gasket, and its characterized in that, the outer surface of center mechanism conical gasket is equipped with conical gasket outer taper surface, the lower end of center mechanism conical gasket is equipped with conical gasket outer chamfer, the upper end of center mechanism conical gasket is equipped with conical gasket locating step, and the upper and lower surfaces of conical gasket locating step are equipped with conical gasket locating step chamfer, the inside bottom half portion of center mechanism conical gasket is equipped with conical gasket inner straight hole, the inside middle portion of center mechanism conical gasket is equipped with two conical gasket inner taper holes, the size taper hole junction of two conical gasket inner taper holes is equipped with conical gasket circular arc inverted lip, and the inside upper portion of center mechanism conical gasket is equipped with conical gasket flared mouth.

[0005] The conical gasket inner straight hole size is less than the outer diameter of the valve rod.

[0006] The two conical gasket inner taper holes size is less than the outer diameter of the valve rod.

[0007] The utility model discloses the beneficial effect is, and the inside diameter of conical sealing gasket is designed as conical structure, and the inside diameter is equipped with 2 circular arc inverted lip structure, and the better leakage prevention effect is played to the medium in capsule, solves the problem that the friction and abrasion of valve rod and conical sealing gasket inside diameter cause leakage to produce large area glue deficiency, or because of internal pressure deficiency, glue deficiency is serious and leads to tire scrap directly, and the service life increases 5 times, thereby stabilizing product quality, reducing production capacity loss, greatly reducing artificial and material cost simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0008] The utility model is further explained in connection with the drawings and examples.

[0009] Figure 1 The utility model discloses a structural schematic diagram.

[0010] Figure 2 It is the utility model center mechanism conical gasket's enlarged view.

[0011] Figure 3 It is the utility model valve rod and center mechanism sealing position separation schematic view.

[0012] A. medium inlet, B. medium outlet, 1. center mechanism conical pad seat, 2. center mechanism sealing pad seat, 3. conical pad fastening ring nut, 4. valve rod right angle bend, 5. sealing pad outer ring, 6. center mechanism sealing pad, 7. valve rod, Z. center mechanism conical pad, Z1. conical pad outer taper surface, Z2. conical pad outer chamfer, Z3. conical pad positioning platform, Z4. conical pad positioning platform chamfer, Z5. conical pad inner straight hole, Z6. conical pad inner taper hole, Z7. conical pad circular arc reverse lip, Z8. conical pad horn. DETAILED DESCRIPTION

[0013] In the figure, the utility model is provided with a mold center mechanism, the mold center mechanism is provided with a center mechanism conical pad seat 1, the top of the center mechanism conical pad seat 1 is provided with a conical pad fastening ring nut 3, the middle position of the mold center mechanism is provided with a center mechanism sealing pad seat 2, the center mechanism sealing pad seat 2 position is provided with a sealing pad outer ring 5 in which a center mechanism sealing pad 6 is embedded, a 90° bend is formed between the sealing pad outer ring 5 and the valve rod 7 to form a valve rod right angle bend 4, the center mechanism conical pad seat 1 and the center mechanism sealing pad seat 2 are connected at a 90° right angle, medium enters from the center mechanism sealing pad seat 2 position in which the center mechanism sealing pad 6 is embedded, and then enters the inside of the vulcanization capsule after the medium that flows through the valve rod 7 outlet B of the 90° bend valve rod right angle bend 4. The center mechanism conical pad Z is installed between the center mechanism conical pad seat 1 and the conical pad fastening ring nut 3, and the center mechanism conical pad Z is fastened and compressed by the conical pad fastening ring nut 3. In combination Figure 2 Further explanation, the center mechanism conical pad Z is provided with a conical pad outer taper surface Z1 on the outer surface, the lower end of the center mechanism conical pad Z is provided with a conical pad outer chamfer Z2, the upper end is provided with a conical pad positioning platform Z3, the upper and lower surfaces of the conical pad positioning platform Z3 are provided with a conical pad positioning platform chamfer Z4, the inside bottom half of the center mechanism conical pad Z is provided with a conical pad inner straight hole Z5, the inside middle part of the center mechanism conical pad Z is provided with two conical pad inner taper holes Z6, the taper surface is used to solve the problem of smooth insertion of the valve rod 7, the size taper hole connection part of the two conical pad inner taper holes Z6 in the center mechanism conical pad Z is provided with a conical pad circular arc reverse lip Z7, the lip direction is towards the side with pressure, and the center mechanism conical pad Z is provided with a conical pad horn Z8 on the inside upper part, which is convenient for the centering of the insertion of the valve rod 7. Because the valve rod 7 is communicated with the center mechanism capsule, the valve rod 7 needs to be taken out from the center mechanism conical pad Z every time a tire is taken, and the center mechanism conical pad Z is temporarily blocked to prevent the tire from collapsing due to the leakage of internal pressure, and after the tire is re-circulated and shaped, the temporary blockage is removed again when the tire is loaded into the mold, and the valve rod 7 is inserted into the center mechanism conical pad Z in place, so that the internal pressure medium can be introduced during vulcanization.

[0014] The utility model discloses a center mechanism conical pad Z outer surface is equipped with conical pad outer taper surface Z1, is convenient for to center mechanism conical pad seat Z inside installation, and the lower extreme of center mechanism conical pad Z is equipped with conical pad outer chamfer Z2, solves the clearance problem that the inside bottom machining of center mechanism conical pad seat 1 is not in position, guarantees installation in position compact type, and the upper end of center mechanism conical pad Z is equipped with conical pad locating step Z3, and the upper and lower surface of conical pad locating step Z3 is equipped with conical pad locating step chamfer Z4, is convenient for solving the clearance problem that the inside machining cooperation of center mechanism conical pad seat 1 is not in position, guarantees installation in position compact type, and the inside bottom half portion of center mechanism conical pad Z is equipped with conical pad inner straight hole Z5, and the size of conical pad inner straight hole Z5 is less than the outer diameter of valve rod, plays the effect of primary sealing, and the inside middle part of center mechanism conical pad Z is equipped with two conical pad inner taper hole Z6, and the size of conical pad inner taper hole Z6 is less than the outer diameter of valve rod, and the smooth problem of valve rod insertion is solved by taper surface, plays the effect of secondary, third sealing, and the size taper hole junction of two conical pad inner taper hole Z6 is equipped with conical pad circular arc inverted lip mouth Z7, and the lip mouth direction is towards the side with pressure, plays the effect of four times sealing, and the inside upper part of center mechanism conical pad seat Z is equipped with conical pad horn mouth Z8, and it is convenient for valve rod 7 insertion centering.

Claims

1. A valve sealing device for a capsule-type quick-opening vulcanizing tank, comprising a mold central mechanism, a central mechanism conical pad, a conical pad fastening annular nut at the top of the central mechanism conical pad, a central mechanism sealing pad at the middle position of the mold central mechanism, a sealing pad outer ring inlaid with the central mechanism sealing pad being placed at the central mechanism sealing pad position, a valve connecting the central mechanism conical pad and the central mechanism sealing pad at a 90° right angle, a central mechanism conical pad being installed between the central mechanism conical pad and the conical pad fastening annular nut, and the conical pad fastening annular nut fastening and pressing the central mechanism conical pad tightly, characterized in that... The central mechanism conical pad has an outer conical surface on its outer surface, an outer chamfer at its lower end, a positioning step at its upper end, chamfers on its upper and lower surfaces, an inner straight hole in its lower half, two conical holes in its middle middle section, a rounded chamfer at the connection between the large and small conical holes, and a flared mouth in its upper part.

2. The capsule-type quick-opening vulcanizing tank valve sealing device according to claim 1, characterized in that... The inner diameter of the conical pad is smaller than the outer diameter of the valve.

3. The capsule-type quick-opening vulcanizing tank valve sealing device according to claim 1, characterized in that... The inner conical hole size of the two conical pads is smaller than the outer diameter of the valve.

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