Vulcanizing capsule for air spring capsule skin and tool

Abstract

The invention discloses a vulcanization capsule and a tool for air spring capsule skin, the vulcanization capsule is of a hollow structure, an upper clamping edge is arranged at the upper end opening of the vulcanization capsule, a lower clamping edge is arranged at the lower end opening of the vulcanization capsule, the tool comprises the vulcanization capsule, an upper cover, a center rod, a clamping device and a fixing device, the upper cover and the upper end of the center rod are matched with the upper clamping edge to be used for sealing and limiting the upper end of the vulcanization capsule, the center rod penetrates through the interior of the vulcanization capsule, the lower end of the center rod is connected with the fixing device, and the clamping device and the fixing device are matched with the lower clamping edge to be used for sealing and limiting the lower end of the vulcanization capsule. And a closed cavity is formed in the curing bladder. The vulcanizing machine is suitable for vulcanizing the air spring capsule skin, can break through the restrictions of the vulcanizing capsule structure and the service life, and improves the vulcanizing quality and efficiency of the air spring.

Description

Technical Field

[0001] The invention relates to a vulcanizing bladder and tooling for an air spring bladder skin, belonging to the field of vulcanizing bladders. Background Art

[0002] With the rapid development of the automobile industry, customers have higher and higher requirements for the comfort and handling of the whole vehicle. The air spring uses air as the shock absorber to achieve a very small stiffness and provide better comfort than the coil spring. The bladder, an important component of the air spring, requires a vulcanization bladder as the inner mold for vulcanization due to its special structure.

[0003] The main function of the vulcanization bladder is to fill it with high-pressure nitrogen or steam during the vulcanization process, so that it expands the preformed bladder skin to fit the inner surface of the mold and form a suitable vulcanization pressure. The vulcanization bladder is the most important part of the empty spring bladder skin. The structure and service life of the vulcanization bladder restrict the vulcanization quality and efficiency of the empty spring. Summary of the invention

[0004] The object of the present invention is to provide a vulcanizing bladder and tooling for an air spring bladder skin, which are suitable for vulcanizing the air spring bladder skin.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] On the one hand, the present invention provides a vulcanization bladder for an air spring bag skin, which includes a vulcanization bladder. The vulcanization bladder is a hollow structure. An upper clamping edge is provided at the upper port of the vulcanization bladder, and a lower clamping edge is provided at the lower port of the vulcanization bladder. The upper clamping edge faces the inside of the port, and the lower clamping edge faces the outside of the port. The upper and lower ends of the upper clamping edge protrude outward to form an upper clamping edge sealing surface, and the upper and lower ends of the lower clamping edge protrude outward to form a lower clamping edge sealing groove and a lower clamping edge sealing surface.

[0007] Furthermore, the bladder body of the vulcanization bladder is divided into three sections, namely an upper enlarged working surface, a middle enlarged working surface and a lower enlarged working surface. The inner diameters of the upper enlarged working surface are the same, the inner diameter of the middle enlarged working surface gradually increases from top to bottom, and the inner diameters of the lower enlarged working surface are the same.

[0008] On the other hand, the present invention also provides a vulcanization tooling for an air spring bladder, which includes the above-mentioned vulcanization bladder, and also includes an upper cover, a center rod, a supporting device and a fixing device. The upper end of the upper cover and the center rod cooperate with the upper clamping edge to seal and limit the upper end of the vulcanization bladder. The center rod passes through the interior of the vulcanization bladder and its lower end is connected to the fixing device. The supporting device and the fixing device cooperate with the lower clamping edge to seal and limit the lower end of the vulcanization bladder, thereby forming a closed cavity inside the vulcanization bladder.

[0009] Furthermore, an upper cover sealing groove and a center rod sealing groove are respectively provided on the lower end surface of the upper cover and the upper end surface of the center rod, and the upper cover sealing groove and the center rod sealing groove respectively cooperate with the two upper clamp edge sealing surfaces.

[0010] Furthermore, the upper cover and the center rod are fixedly connected by bolts.

[0011] Furthermore, a center rod connector is provided at the front end of the center rod, and the center rod connector is locked in cooperation with a threaded hole provided on the fixing device.

[0012] Furthermore, an air intake passage is provided on the fixing device, and the air intake passage is communicated with the inner cavity of the vulcanizing bladder.

[0013] Furthermore, the supporting device is provided with a supporting first sealing surface, a supporting second sealing surface and a supporting sealing groove, and the supporting first sealing surface and the supporting second sealing surface are located on both sides of the supporting sealing groove.

[0014] Furthermore, the fixing device is provided with a fixed sealing groove and a fixed matching surface, and the fixed sealing groove and the supporting sealing groove respectively cooperate with the two lower clamp edge sealing surfaces, the supporting first sealing surface cooperates with the lower clamp edge sealing groove, and the supporting second sealing surface cooperates with the fixed matching surface.

[0015] Furthermore, the supporting device and the fixing device are fixedly connected by bolts.

[0016] The beneficial effects of the present invention are as follows: the present invention can be applied to the vulcanization of air spring bladder skins, can break through the constraints of the vulcanization bladder structure and service life, and improve the vulcanization quality and efficiency of air springs.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the vulcanization bladder of the present invention.

[0019] Figure 2 The structure diagram of the supporting device-4 of the present invention

[0020] Figure 3 This is a structural diagram of the fixing device-5 of the present invention.

[0021] Figure 4 It is the tooling assembly structure diagram of the present invention.

[0022] Marked in the figure: upper cover-1, center rod-2, vulcanizing capsule-3, supporting device-4, fixing device-5, upper cover sealing groove 1-1, center rod sealing groove 2-1, center rod connecting head 2-2, upper clamping edge 3-1, upper clamping edge sealing surface A3-1-1, upper clamping edge sealing surface B3-1-2, upper support working surface 3-2, middle support working surface 3-3, lower support working surface 3-4, lower clamping edge 3-5, lower clamping edge sealing groove 3-5-1, lower clamping edge sealing surface A3-5-2, lower clamping edge sealing surface B3-5-3, supporting sealing groove 4-1, supporting first sealing surface 4-2, supporting second sealing surface 4-3, air intake channel 5-1, fixed matching surface 5-2, fixed sealing groove 5-3, threaded hole 5-4. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1

[0025] like Figure 1 A vulcanization bladder for an air spring bag skin comprises a vulcanization bladder 3, the vulcanization bladder 3 is a hollow structure, an upper clamping edge 3-1 is provided at the upper port of the vulcanization bladder 3, and a lower clamping edge 3-5 is provided at the lower port of the vulcanization bladder 3, the upper clamping edge 3-1 faces the inside of the port, and the lower clamping edge 3-5 faces the outside of the port, the upper and lower ends of the upper clamping edge 3-1 protrude outward to form an upper clamping edge sealing surface, and the upper and lower ends of the lower clamping edge 3-5 protrude outward to form a lower clamping edge sealing groove 3-5-1 and a lower clamping edge sealing surface.

[0026] The body of the vulcanization bladder 3 is divided into three sections, namely an upper enlarged working surface 3-2, a middle enlarged working surface 3-3 and a lower enlarged working surface 3-4. The inner diameters of the upper enlarged working surface 3-2 are the same, the inner diameters of the middle enlarged working surface 3-3 gradually increase from top to bottom, and the inner diameters of the lower enlarged working surface 3-4 are the same.

[0027] Embodiment 2

[0028] like Figures 2 to 4A vulcanization tooling for an air spring bladder skin, the tooling comprising the vulcanization bladder 3 of the first embodiment, and also comprising an upper cover 1, a center rod 2, a holding device 4 and a fixing device 5, the upper ends of the upper cover 1 and the center rod 2 cooperate with an upper clamping edge 3-1 to seal and limit the upper end of the vulcanization bladder 3, the center rod 2 passes through the interior of the vulcanization bladder 3 and its lower end is connected to the fixing device 5, the holding device 4 and the fixing device 5 cooperate with a lower clamping edge 3-5 to seal and limit the lower end of the vulcanization bladder 3, thereby forming a closed cavity inside the vulcanization bladder 3.

[0029] In this embodiment, an upper cover sealing groove 1-1 and a center rod sealing groove 2-1 are respectively provided on the lower end surface of the upper cover 1 and the upper end surface of the center rod 2, and the upper cover sealing groove 1-1 and the center rod sealing groove 2-1 are respectively matched with the two upper clamp edge sealing surfaces. The upper cover 1 and the center rod 2 are fixedly connected by bolts.

[0030] In this embodiment, a center rod connector 2 - 2 is provided at the front end of the center rod 2 , and the center rod connector 2 - 2 is locked in cooperation with a threaded hole 5 - 4 provided on the fixing device 5 .

[0031] In this embodiment, an air inlet channel 5 - 1 is provided on the fixing device 5 , and the air inlet channel 5 - 1 is communicated with the inner cavity of the vulcanizing bladder 3 .

[0032] In this embodiment, the supporting device 4 is provided with a supporting first sealing surface 4-2, a supporting second sealing surface 4-3 and a supporting sealing groove 4-1, and the supporting first sealing surface 4-2 and the supporting second sealing surface 4-3 are located on both sides of the supporting sealing groove 4-1. The fixing device 5 is provided with a fixing sealing groove 5-3 and a fixing matching surface 5-2, and the fixing sealing groove 5-3 and the supporting sealing groove 4-1 respectively cooperate with the two lower clamping edge sealing surfaces, the supporting first sealing surface 4-2 cooperates with the lower clamping edge sealing groove 3-5-1, and the supporting second sealing surface 4-3 cooperates with the fixing matching surface 5-2.

[0033] In this embodiment, the supporting device 4 and the fixing device 5 are fixedly connected by bolts.

[0034] The working principle of this tooling is as follows: the upper cover sealing groove 1-1 of the upper cover cooperates with the upper clamping edge sealing surface A3-1-1 of the vulcanizing bladder, the center rod sealing groove 2-1 of the center rod cooperates with the upper clamping edge sealing surface B 3-1-2 of the vulcanizing bladder, and the upper cover 1, center rod 2, and upper clamping edge 3-1 work together to seal and limit the upper end of the vulcanizing bladder. The first supporting sealing surface 4-2 cooperates with the lower clamping edge sealing groove 3-5-1, the supporting sealing groove 4-1 cooperates with the lower clamping edge sealing surface A, and the lower clamping edge sealing surface B 3-5-3 cooperates with the fixed sealing groove 5-3, and they work together to seal and limit the lower end of the vulcanizing bladder. The second supporting sealing surface 4-3 is locked and fastened to the fixing device by bolts and the fixed matching surface 5-2 to limit the position of the fixing device, and then the center rod connector 2-2 and the threaded hole 5-4 cooperate to lock and limit the position of the center rod. In summary, the vulcanization bladder and various tooling form a closed space. During vulcanization, high-pressure gas is filled in through the air inlet channel 5-1, so that the expanded working surface with the loaded empty spring bag skin blank is expanded and fits on the inner wall of the forming mold to achieve product molding and vulcanization. After the vulcanization is completed, the high-pressure lifting exhausts the gas through the air inlet channel and the empty spring bag skin is taken out.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the protection scope of the present invention in any form, and all technical solutions obtained by equivalent replacement and the like fall within the protection scope of the present invention. The parts not involved in the present invention are the same as the prior art or can be implemented by the prior art.

Claims

1. A vulcanizing bladder for an air spring bladder, characterized in that: The invention comprises a vulcanization bladder, which is a hollow structure. An upper clamping edge is arranged at the upper port of the vulcanization bladder, and a lower clamping edge is arranged at the lower port of the vulcanization bladder. The upper clamping edge faces the inner side of the port, and the lower clamping edge faces the outer side of the port. The upper and lower ends of the upper clamping edge protrude outward to form an upper clamping edge sealing surface, and the upper and lower ends of the lower clamping edge protrude outward to form a lower clamping edge sealing groove and a lower clamping edge sealing surface.

2. A vulcanizing bladder for an air spring skin according to claim 1, characterized in that: The bladder body of the vulcanization bladder is divided into three sections, namely an upper enlarged working surface, a middle enlarged working surface and a lower enlarged working surface. The inner diameters of the upper enlarged working surface are the same, the inner diameter of the middle enlarged working surface gradually increases from top to bottom, and the inner diameters of the lower enlarged working surface are the same.

3. A vulcanization equipment for air spring bladder skin, characterized in that: The tooling includes the vulcanization bladder as described in claim 1 or 2, and also includes an upper cover, a center rod, a holding device and a fixing device. The upper ends of the upper cover and the center rod cooperate with the upper clamping edge to seal and limit the upper end of the vulcanization bladder. The center rod passes through the interior of the vulcanization bladder and its lower end is connected to the fixing device. The holding device and the fixing device cooperate with the lower clamping edge to seal and limit the lower end of the vulcanization bladder, thereby forming a closed cavity inside the vulcanization bladder.

4. The vulcanization equipment for air spring bladder skin according to claim 3, characterized in that: An upper cover sealing groove and a center rod sealing groove are respectively provided on the lower end surface of the upper cover and the upper end surface of the center rod, and the upper cover sealing groove and the center rod sealing groove are respectively matched with two upper clamp edge sealing surfaces.

5. The vulcanization equipment for air spring bladder skin according to claim 4, characterized in that: The upper cover and the center rod are fixedly connected by bolts.

6. The vulcanization equipment for air spring bladder skin according to claim 3, characterized in that: A center rod connector is provided at the front end of the center rod, and the center rod connector is matched and locked with a threaded hole provided on the fixing device.

7. The vulcanization equipment for air spring bladder skin according to claim 3, characterized in that: An air inlet passage is provided on the fixing device and is communicated with the inner cavity of the vulcanizing bladder.

8. The vulcanization equipment for air spring bladder skin according to claim 3, characterized in that: The supporting device is provided with a supporting first sealing surface, a supporting second sealing surface and a supporting sealing groove, and the supporting first sealing surface and the supporting second sealing surface are located at two sides of the supporting sealing groove.

9. The vulcanization equipment for air spring bladder skin according to claim 8, characterized in that: The fixing device is provided with a fixed sealing groove and a fixed matching surface. The fixed sealing groove and the supporting sealing groove respectively cooperate with the two lower clamp edge sealing surfaces. The supporting first sealing surface cooperates with the lower clamp edge sealing groove, and the supporting second sealing surface cooperates with the fixed matching surface.

10. The vulcanization equipment for air spring bladder skin according to claim 3, characterized in that: The supporting device and the fixing device are fixedly connected by bolts.

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