Overhead force cylinder water cooling structure of hydraulic curing press

Abstract

The utility model discloses a kind of water cooling structure of overhung force cylinder of hydraulic vulcanizing machine, including force cylinder being installed in the bottom of lower supporting plate, lower steam chamber base through-hole and water cooling device being set between force cylinder and lower steam chamber base, the water cooling device includes water inlet, sink, water outlet pipe, annular groove is opened in lower steam chamber base through-hole, the upper and lower ends of annular groove corresponding force cylinder cylinder body outer wall are all provided with cylinder body ring, sealing ring is arranged between cylinder body ring and lower steam chamber base, annular groove in lower steam chamber base, force cylinder cylinder body outer wall, upper and lower cylinder body ring are enclosed to form sink containing cooling water, cooling water enters sink from the water inlet of lower steam chamber base bottom, after cooling force cylinder cylinder body, from the drain pipe of another side in sink flows out. The utility model is simple in structure, easy to implement, not only can effectively cool force cylinder cylinder body, but also is not limited by lower steam chamber base thickness, can be widely used.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing technology, specifically to a water-cooled structure for an upper-mounted booster cylinder in a hydraulic vulcanizing machine. Background Technology

[0002] The function of the hydraulic vulcanizing machine's pressure cylinder is to apply pressure to the mold, generating the clamping force required for vulcanization, and is one of the important components ensuring the quality of tire vulcanization. During vulcanization, saturated steam at a certain pressure is introduced into the steam chamber for an extended period. The high temperature of the saturated steam will inevitably be directly or indirectly transferred to the pressure cylinder, affecting the sealing of the seals. The pressure cylinder needs to provide a sufficiently stable clamping force throughout the vulcanization process; if the seals leak, vulcanization will fail. Therefore, heat transfer to the pressure cylinder should be reduced, or the temperature inside the pressure cylinder should be lowered to extend the service life of the seals within the pressure cylinder. The This allows for convenient maintenance and replacement of the booster cylinder.

[0003] For ease of maintenance, disassembly, and removal, the booster cylinder is best installed in a top-mounted configuration. However, with top-mounted installation, most of the booster cylinder body inevitably fits within the through-hole of the lower steam chamber base. This allows heat to easily transfer directly from the lower steam chamber base to the booster cylinder, resulting in poor heat dissipation and significantly impacting the lifespan of the seals within the booster cylinder. To address the issue of high-temperature steam conduction during top-mounted installation, if a built-in cylinder body water jacket is used to isolate and reduce the internal temperature of the booster cylinder, the diameter of the through-hole in the lower steam chamber base for mounting the booster cylinder would need to be increased accordingly. Given that the diameter of the circumferential distribution center circle of the booster cylinder cannot be increased significantly, adjacent through-holes in the lower steam chamber base would be too close together, weakening the load-bearing strength of the lower steam chamber base. Furthermore, the built-in cylinder body water jacket increases manufacturing difficulty and cost. Currently, a common method for cooling is to use a built-in cylinder head water jacket to cool the piston rod at the top. Figure 1 As shown, the lower steam chamber base at the location of the booster cylinder installation must be thick enough to ensure sufficient load-bearing strength after the booster cylinder is installed in a recessed manner. Therefore, it cannot be widely used. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a water-cooled structure for an upper-mounted booster cylinder in a hydraulic vulcanizing machine. The structure is simple and easy to implement. It can not only effectively cool the booster cylinder body, but is also not limited by the thickness of the lower steam chamber base, and can be widely used.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] The hydraulic vulcanizing machine has an upper-mounted booster cylinder water-cooled structure, which includes a booster cylinder installed at the bottom of the lower support plate and in the through hole of the lower steam chamber base, and a water-cooling device set between the booster cylinder and the lower steam chamber base. The water-cooling device includes a water inlet, a water tank, and a drain pipe. An annular groove is opened in the through hole of the lower steam chamber base. Cylinder body rings are set at the upper and lower ends of the outer wall of the booster cylinder corresponding to the annular groove. A sealing ring is set between the cylinder body rings and the lower steam chamber base. The annular groove in the lower steam chamber base, the outer wall of the booster cylinder, and the upper and lower cylinder body rings form a water tank to accommodate cooling water. The cooling water enters the water tank from the water inlet at the bottom of the lower steam chamber base, cools the booster cylinder body, and flows out from the drain pipe on the other side of the water tank.

[0007] Furthermore, the lower steam chamber base is composed of a base and a bottom ring plate. The groove in the through hole of the base and the inner wall of the bottom ring plate together form an annular groove. The water tank is formed by the base, the bottom ring plate, the outer wall of the booster cylinder, and the upper and lower cylinder rings.

[0008] Furthermore, a stainless steel plate is welded around the outer wall of the booster cylinder between the upper and lower cylinder rings.

[0009] Furthermore, the sealing ring is installed in the groove on the outer circumference of the cylinder ring.

[0010] Furthermore, a straight groove is provided on the mounting end face of the top of the through hole of the lower steam chamber base, and a through hole is connected to the outer end of the straight groove downward. The oil pipe of the booster cylinder is placed in the straight groove and passes through the through hole to exit the lower steam chamber base.

[0011] Compared with the prior art, the advantages and effects of this utility model are:

[0012] 1. The bottom steam chamber base is cleverly used as a water tank to directly cool the cylinder body of the booster cylinder at close range. Due to the thin wall of the cylinder body and the large cooling area, it is more direct and has a better cooling effect than the existing method of cooling the piston rod with a built-in cylinder head water jacket. It can effectively reduce the temperature inside the booster cylinder and greatly improve the service life of the seals in the booster cylinder.

[0013] 2. Regardless of the thickness of the lower steam chamber base, water cooling can be achieved, which facilitates the widespread implementation of top-mounted installation of the booster cylinder. Furthermore, a crane can be used on-site to disassemble and lift the booster cylinder from above the lower steam chamber, making disassembly and maintenance convenient and safe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an existing top-mounted booster cylinder with water cooling.

[0015] Figure 2 This is a structural schematic diagram of one embodiment of the present invention.

[0016] Figure 3 forFigure 2 Enlarged view of a portion of point A in the middle.

[0017] Figure 4 This is a schematic diagram of another embodiment of the present invention.

[0018] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0019] Part Number Identification: 1. Lower support plate; 2. Lower steam chamber base; 21. Base; 22. Bottom ring plate; 3. Power cylinder; 4. Water inlet; 5. Water tank; 6. Drain pipe; 7. Cylinder body ring; 8. Sealing ring; 9. Stainless steel plate; 10. Straight groove; 11. Upper oil pipe of power cylinder; 12. Heat insulation plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments, but the present invention is not limited to these embodiments.

[0021] Example 1

[0022] The hydraulic vulcanizing machine with an upper-mounted booster cylinder and water cooling structure described in this embodiment is as follows: Figure 2 and 3 As shown, the device includes a booster cylinder 3 installed at the bottom of the lower support plate 1 and inside the through hole of the lower steam chamber base 2, and a water-cooling device disposed between the booster cylinder 3 and the lower steam chamber base 2. The water-cooling device includes a water inlet 4, a water tank 5, and a drain pipe 6. An annular groove is provided inside the through hole of the lower steam chamber base 2. Cylinder body rings 7 are welded to the upper and lower ends of the cylinder body outer wall corresponding to the annular groove. A groove is provided on the outer circle of the cylinder body rings 7 for installing a sealing ring 8. Thus, the annular groove in the lower steam chamber base 2, the outer wall of the booster cylinder 3, and the upper and lower cylinder body rings 7 together form a water tank 5 to accommodate cooling water. To avoid the water tank... The cylinder body of the booster cylinder 3 is corroded by cooling water. A thin stainless steel plate 9 is welded around the outer wall of the booster cylinder 3 between the upper and lower cylinder rings 7. A water inlet 4 is opened at the bottom of the lower steam chamber base 2. A drain pipe 6 is inserted into the water tank 5 to the high position on the other side. Cooling water enters the water tank 5 from the bottom water inlet 4. After cooling the booster cylinder 3, it flows out from the drain pipe 6 at the high position on the other side of the water tank 5, which takes away the heat in time and effectively reduces the temperature inside the booster cylinder 3. In addition, the heat conducted by the lower support plate 12 is isolated from the booster cylinder 3 by the heat insulation plate 12, which can greatly reduce the impact of steam heat on the seals in the booster cylinder 3.

[0023] Since the cylinder body ring 7 is part of the water tank 3, the annular groove inside the through hole for mounting the booster cylinder 3 in the lower steam chamber base 2 does not need to be machined too deep, so as not to affect the load-bearing strength of the lower steam chamber base 2 supporting the booster cylinder 3. In addition, the sealing ring 8 is installed in the groove on the outer circle of the cylinder body ring 9, rather than being directly cut on the outer circle of the booster cylinder 3, which also avoids weakening the strength of the booster cylinder 3.

[0024] like Figure 2 As shown, a straight groove 10 is opened downward and outward on the mounting end face of the through hole at the top of the lower steam chamber base 2. A through hole is connected to the outer end of the straight groove 10 downward. The oil pipe 11 of the booster cylinder is aligned and inserted into the through hole, so that the booster cylinder 3 can be inserted from top to bottom into the through hole of the lower steam chamber base 2 for installation. The oil pipe 11 of the booster cylinder can be placed in the straight groove 10 and pass through the through hole to exit the lower steam chamber base 2.

[0025] Example 2

[0026] The hydraulic vulcanizing machine with an upper-mounted booster cylinder and water cooling structure described in this embodiment is as follows: Figure 4 and 5 As shown, unlike Embodiment 1, since the thickness of the lower steam chamber base 2 is insufficient to fully machine the annular groove, in this case, a bottom ring plate 22 needs to be welded to the lower end of the base 21 of the original lower steam chamber base 2. The groove in the through hole of the base 21 and the inner wall of the bottom ring plate 22 together form an annular groove. Then, the water tank 5 is surrounded by the base 21, the bottom ring plate 22, the outer wall of the cylinder of the booster cylinder 3, and the upper and lower cylinder rings 7. The corresponding water inlet 4 is opened on the bottom ring plate 22.

Claims

1. A water-cooled top-mounted booster cylinder structure for a hydraulic vulcanizing machine, characterized in that: The device includes a booster cylinder (3) installed at the bottom of the lower support plate (1) and in the through hole of the lower steam chamber base (2), and a water cooling device set between the booster cylinder (3) and the lower steam chamber base (2). The water cooling device includes a water inlet (4), a water tank (5), and a drain pipe (6). An annular groove is provided in the through hole of the lower steam chamber base (2). A cylinder ring (7) is provided at the upper and lower ends of the cylinder body of the booster cylinder (3) corresponding to the annular groove. A sealing ring (8) is provided between the cylinder ring (7) and the lower steam chamber base (2). The annular groove in the lower steam chamber base (2), the cylinder body of the booster cylinder (3), and the upper and lower cylinder rings (7) together form a water tank (5). Cooling water enters the water tank (5) from the water inlet (4) at the bottom of the lower steam chamber base (2) and flows out from the drain pipe (6) on the other side of the water tank (5).

2. The water-cooled structure of the upper-mounted booster cylinder of the hydraulic vulcanizing machine according to claim 1, characterized in that: The lower steam chamber base (2) is composed of a base (21) and a bottom ring plate (22). The groove in the through hole of the base (21) and the inner wall of the bottom ring plate (22) together form an annular groove. The water tank (5) is formed by the base (21), the bottom ring plate (22), the outer wall of the cylinder of the booster cylinder (3), and the upper and lower cylinder rings (7).

3. The water-cooled structure of the upper-mounted booster cylinder of the hydraulic vulcanizing machine according to claim 1, characterized in that: A stainless steel plate (9) is welded around the outer wall of the booster cylinder (3) between the upper and lower cylinder rings (7).

4. The water-cooled structure of the upper-mounted booster cylinder of the hydraulic vulcanizing machine according to claim 1, characterized in that: The sealing ring (8) is installed in the groove on the outer circle of the cylinder ring (7).

5. The water-cooled structure of the upper-mounted booster cylinder of the hydraulic vulcanizing machine according to claim 1, characterized in that: A straight groove (10) is provided on the mounting end face of the top of the through hole of the lower steam chamber base (2). A through hole is connected to the outer end of the straight groove (10). The oil pipe (11) of the booster cylinder is placed in the straight groove (10) and passes through the through hole to exit the lower steam chamber base (2).

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