Spoke type rubberless hair spring air hole sleeve

Abstract

The application discloses spoke type glue-free spring air hole sleeve, including mould, sleeve, outer bushing, mounting ring, quick mounting mechanism, spoke, positioning mechanism and valve core, the outside of sleeve is fixedly connected with mounting ring, a plurality of evenly distributed air holes are formed in the mounting ring, the quick mounting mechanism is arranged on the mounting ring, the inside of sleeve is slidably connected with spoke, the spoke is provided with positioning mechanism, the sleeve is fixedly connected with fixed rod, the fixed rod is fixedly connected with center block, the center block is slidably connected with slide rod, the bottom of slide rod is fixedly connected with valve core, the valve core is slidably connected with spoke, the outside of slide rod is provided with first spring, one end of first spring is fixedly connected with valve core, the other end of first spring is fixedly connected with center block. The application relates to spoke type glue-free spring air hole sleeve, which has the characteristics of automatic air release and convenient installation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tires, and particularly relates to a spoke type glue-free spring air hole sleeve. BACKGROUND

[0002] In the tire vulcanization forming process, the gas between the tire mold and the tire needs to be discharged, otherwise quality problems will occur. The tire industry generally uses ordinary sleeve type air hole sleeves to discharge the gas in the tire mold. For the sleeve type air hole sleeve, the exhaust hole cannot be closed, which causes glue hair to be generated on the surface of the tire product, and the product appearance is poor. In order to solve this problem, there are two glue-free tire mold technologies in the tire industry: 1, a multi-piece tire mold; 2, a tire mold provided with a spring air hole sleeve. Among them, the spring air hole sleeve mold mainly adopts the following three forms: 1, the outer shell and the inner valve core are all not opened, one-piece, and cannot be disassembled; 2, the lower end of the outer shell is opened and can be disassembled; 3, the lower end of the inner valve core is opened and can be disassembled. At present, the first kind of spring air hole sleeve is gradually eliminated. The second kind and the third kind are used in small quantities in semi-steel molds and full-steel molds. The disassembled spring air hole sleeve mainly includes a shell, a valve rod and a spring. The current technology is to open the lower end of the shell or the lower end of the valve core, and assemble them together by using the deformation of the open end. The shell is a hollow structure and is fixed in the mold, the valve rod is in the shell, and the spring provides elastic tension to keep the air hole sleeve ventilated. When the valve core contacts the tire during the vulcanization forming process, the valve rod is contracted and closed with the shell, so as to avoid the generation of glue hair on the surface of the tire.

[0003] The current spoke type glue-free spring air hole sleeve has a relatively complex installation mode and is inconvenient to disassemble and assemble. In addition, the current spoke type glue-free spring air hole sleeve is manually pressed to discharge the gas, which is relatively cumbersome. Therefore, it is necessary to design a spoke type glue-free spring air hole sleeve. SUMMARY

[0004] The purpose of the present application is to provide a spoke type glue-free spring air hole sleeve to solve the above problems and solve the problems mentioned in the background.

[0005] In order to solve the above problems, the present application provides a technical scheme:

[0006] The spoke type glue-free hair spring air hole sleeve includes a mold, a sleeve shell, an outer bushing, a mounting ring, a quick mounting mechanism, a spoke, a positioning mechanism and a valve core, the outer part of the sleeve shell is fixedly connected with the mounting ring, a plurality of evenly distributed air holes are formed in the mounting ring, the mounting ring is provided with the quick mounting mechanism, the inner side of the sleeve shell is slidably connected with the spoke, the spoke is provided with the positioning mechanism, the sleeve shell is fixedly connected with a fixing rod, the fixing rod is fixedly connected with a center block, the center block is slidably connected with a sliding rod, the bottom of the sliding rod is fixedly connected with the valve core, the valve core is slidably connected with the spoke, the outer part of the sliding rod is provided with a first spring, one end of the first spring is fixedly connected with the valve core, and the other end of the first spring is fixedly connected with the center block, two symmetrically distributed through holes are formed in the sleeve shell.

[0007] As preferred, the outer part of the sleeve shell is fixedly connected with the outer bushing, and the outer bushing is slidably connected with the mold. The outer bushing has a supporting effect on the sleeve shell in the mold.

[0008] As preferred, the top of the sliding rod is fixedly connected with a limiting block, and the limiting block is in contact with the center block. The limiting block has a limiting effect on the sliding rod.

[0009] As preferred, the quick mounting mechanism includes a limiting pin, a second spring, a push rod, a rotating arm and a rubber clamp head, the limiting pin is slidably connected in the mounting ring and slidably connected with the mold, the second spring is arranged in the mounting ring, one end of the second spring is fixedly connected with the limiting pin, the other end of the second spring is fixedly connected to the inner surface of the mounting ring, the push rod is fixedly connected with the limiting pin and slidably connected with the mounting ring. The push rod is pushed, the push rod drives the limiting pin to slide in the mounting ring of the sleeve shell, the limiting pin compresses the second spring, then the state of the limiting pin is maintained, then the sleeve shell is placed into the mold, at this time, the outer bushing and the mounting ring outside the sleeve shell are placed into the mold, then the push rod is released, the second spring resets the limiting pin, and the limiting pin is inserted into the corresponding hole groove of the mold, so that the installation of the air hole sleeve is completed.

[0010] As preferred, the push rod is hingedly connected with the rotating arm, the rotating arm is fixedly connected with the rubber clamp head, and the rubber clamp head is clamped with the mounting ring. The rotating arm and the rubber clamp head have a locking effect on the push rod and the limiting pin.

[0011] Preferably, the positioning mechanism includes a top pin, a guide block, a limiting rod, a third spring, an external threaded sleeve, and a protruding button. The top pin is slidably connected inside the spoke and is slidably connected to the housing. A guide block is fixedly connected to the top pin and is slidably connected to the spoke. A limiting rod is fixedly connected inside the spoke and is slidably connected to the guide block. A third spring is provided outside the limiting rod. An external threaded sleeve is threadedly connected to the inner side of the spoke and contacts the top pin. The protruding button rotates the external threaded sleeve, causing it to be removed from the spoke. At this point, the external threaded sleeve removes its supporting force on the top pin. The third spring then resets and pulls the guide block, which in turn pulls the top pin, disengaging it from the inner wall of the housing. This releases the restriction on the spoke, allowing it to be removed for replacement.

[0012] Preferably, one end of the third spring is fixedly connected to the guide block, and the other end of the third spring is fixedly connected to the inner surface of the spoke. Through the design of the third spring, the elastic force can be applied to the top pin via the guide block.

[0013] Preferably, two protruding buttons are fixedly connected to the external threaded sleeve, and the two protruding buttons are symmetrically distributed on the external threaded sleeve. The design of the protruding buttons facilitates the rotation of the external threaded sleeve.

[0014] The beneficial effects of this invention are as follows: This invention relates to a spoke-type glue-free vent sleeve for hair springs, which features automatic air release and easy installation. In practical use, compared with the prior art, it has the following two beneficial effects:

[0015] First, detachable spokes are installed inside the casing. Then, a central block fixed by a fixing rod is installed on the inner side of the casing. A sliding rod that extends and retracts via a spring is installed inside the central block. A valve core is installed at the end of the sliding rod. The valve core is used in conjunction with the spokes. In this way, when the air pressure inside the mold is too high, the air pressure enters the spokes from bottom to top and pushes up the valve core, which can then be discharged through the through hole. When the air pressure inside the mold stabilizes, the first spring pushes the valve core back and it re-enters the spokes, achieving the purpose of automatic pressure relief. This replaces the original manual pressing method of air relief, which is simple and convenient.

[0016] Secondly, by setting an installation ring on the outside of the housing, with vent holes for air release, and a disassembly and assembly mechanism inside the installation ring, the disassembly and assembly mechanism contains a limit pin that extends and retracts via a second spring. The limit pin can be inserted into the mold. In this way, by controlling the engagement and disengagement between the limit pin and the mold, the disassembly and assembly of the housing within the mold can be completed, which is simple and convenient. Attached Figure Description

[0017] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Enlarged view of the A-section structure;

[0020] Figure 3 For the present invention Figure 1 Enlarged view of the quick-assembly mechanism;

[0021] Figure 4 For the present invention Figure 1 Top view of the mounting ring;

[0022] Figure 5 For the present invention Figure 1 Bottom view of the external threaded sleeve;

[0023] Figure 6 For the present invention Figure 1 A three-dimensional diagram of the casing.

[0024] In the diagram: 1. Mold; 2. Shell; 3. Outer bushing; 4. Mounting ring; 5. Vent hole; 6. Quick-release mechanism; 7. Spoke; 8. Positioning mechanism; 9. Valve core; 10. Fixing rod; 11. Center block; 12. Slide rod; 13. Limiting block; 14. First spring; 15. Through hole; 61. Limiting pin; 62. Second spring; 63. Lever; 64. Rotating arm; 65. Rubber chuck; 81. Top pin; 82. Guide block; 83. Limiting rod; 84. Third spring; 85. External threaded sleeve; 86. Protruding button. Detailed Implementation

[0025] like Figures 1-6 As shown, the specific implementation adopts the following technical solution: Example

[0026] A spoke-type glue-free wool spring vent sleeve includes a mold 1, a housing 2, an outer bushing 3, a mounting ring 4, a quick-release mechanism 6, spokes 7, a positioning mechanism 8, and a valve core 9. The housing 2 is fixedly connected to the outside of the mounting ring 4, which has multiple evenly distributed vent holes 5. The mounting ring 4 is equipped with the quick-release mechanism 6. The spokes 7 are slidably connected to the inside of the housing 2, and the positioning mechanism 8 is located inside the spokes 7. A fixing rod 10 is fixedly connected to the inside of the housing 2, and a center block 11 is fixedly connected to the fixing rod 10. A sliding rod 12 is slidably connected to the center block 11, and the valve core 9 is fixedly connected to the bottom of the sliding rod 12. The valve core 9 is slidably connected to the spokes 7. A first spring 14 is located outside the sliding rod 12, with one end fixedly connected to the valve core 9 and the other end fixedly connected to the center block 11. The housing 2 has two symmetrically distributed through holes 15.

[0027] The outer sleeve 3 is fixedly connected to the outside of the shell 2, and the outer sleeve 3 is slidably connected to the mold 1. The outer sleeve 3 provides support for the shell 2 within the mold 1.

[0028] A limiting block 13 is fixedly connected to the top of the slide rod 12, and the limiting block 13 contacts the center block 11. The limiting block 13 is designed to limit the movement of the slide rod 12.

[0029] The quick-installation mechanism 6 includes a limiting pin 61, a second spring 62, a lever 63, a rotating arm 64, and a rubber clamp 65. The limiting pin 61 is slidably connected inside the mounting ring 4 and is slidably connected to the mold 1. The second spring 62 is provided inside the mounting ring 4. One end of the second spring 62 is fixedly connected to the limiting pin 61, and the other end of the second spring 62 is fixedly connected to the inner surface of the mounting ring 4. The lever 63 is fixedly connected to the limiting pin 61 and is slidably connected to the mounting ring 4. Move lever 63, which causes limit pin 61 to slide within mounting ring 4 of sleeve 2. Limit pin 61 compresses second spring 62, maintaining the state of limit pin 61. Then, sleeve 2 is placed into mold 1. At this time, outer bushing 3 and mounting ring 4 of sleeve 2 are both inside mold 1. Release lever 63, and second spring 62 will push limit pin 61 back to its original position, causing limit pin 61 to be pushed into the corresponding slot of mold 1. This completes the installation of the vent sleeve.

[0030] The lever 63 is hinged to a rotating arm 64, and a rubber clip 65 is fixedly connected to the rotating arm 64. The rubber clip 65 engages with the mounting ring 4. The design of the rotating arm 64 and the rubber clip 65 provides a locking function for the lever 63 and the limiting pin 61.

[0031] The positioning mechanism 8 includes a top pin 81, a guide block 82, a limiting rod 83, a third spring 84, an external threaded sleeve 85, and a protruding button 86. The top pin 81 is slidably connected inside the spoke 7 and is slidably connected to the housing 2. The guide block 82 is fixedly connected to the top pin 81 and is slidably connected to the spoke 7. The limiting rod 83 is fixedly connected inside the spoke 7 and is slidably connected to the guide block 82. The third spring 84 is provided outside the limiting rod 83. The external threaded sleeve 85 is threadedly connected to the inner side of the spoke 7 and contacts the top pin 81. The external threaded sleeve 85 is rotated by the protruding button 86, thereby removing the external threaded sleeve 85 from the spoke 7. At this time, the external threaded sleeve 85 removes the supporting force on the top pin 81. The third spring 84 is reset and pulls the guide block 82, which in turn pulls the top pin 81 and disengages it from the inner wall of the sleeve 2. This releases the restriction on the spoke 7, and the spoke 7 can then be removed for replacement.

[0032] One end of the third spring 84 is fixedly connected to the guide block 82, and the other end of the third spring 84 is fixedly connected to the inner surface of the spoke 7. Through the design of the third spring 84, the elastic force can be applied to the top pin 81 via the guide block 82.

[0033] The external threaded sleeve 85 is fixedly connected with two protruding buttons 86, which are symmetrically distributed on the external threaded sleeve 85. The design of the protruding buttons 86 facilitates the rotation of the external threaded sleeve 85.

[0034] The usage state of this invention is as follows: First, the lever 63 is turned, and the lever 63 causes the limiting pin 61 to slide within the mounting ring 4 of the sleeve 2. The limiting pin 61 compresses the second spring 62. Then, the limiting pin 61 is kept in its state. Then, the sleeve 2 is placed into the mold 1. At this time, the outer bushing 3 and the mounting ring 4 of the sleeve 2 are both inserted into the mold 1. Then, the lever 63 is released, and the second spring 62 pushes the limiting pin 61 back to its original position, so that the limiting pin 61 is pushed into the corresponding hole groove of the mold 1. This completes the installation of the air hole sleeve.

[0035] Then, when the air pressure inside the mold 1 reaches its peak during tire vulcanization, the air pressure enters the spoke 7 from bottom to top and lifts the valve core 9. The valve core 9 will drive the slide rod 12 to slide in the center block 11, and the first spring 14 will be compressed. Then it can be discharged from the through hole 15 and then discharged to the outside from the vent hole 5 on the mounting ring 4. When the air pressure inside the mold 1 stabilizes, the first spring 14 will push the valve core 9 back and re-enter the spoke 7. This achieves the purpose of automatic pressure relief, replacing the original manual pressing method of air relief, which is simple and convenient.

[0036] In addition, if the spokes 7 need to be replaced later, simply remove the whole unit from the mold 1, and then rotate the two protruding knobs 86 at the same time. The protruding knobs 86 drive the external threaded sleeve 85 to rotate, thereby removing the external threaded sleeve 85 from the spokes 7. At this time, the external threaded sleeve 85 removes the supporting force on the top pin 81. The third spring 84 then resets and pulls the guide block 82, which in turn pulls the top pin 81 and disengages it from the inner wall of the housing 2. This releases the restriction on the spokes 7, and then the spokes 7 can be removed for replacement.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A spoke-type glue-free vent sleeve for a wool spring, comprising a mold (1), a sleeve shell (2), an outer bushing (3), a mounting ring (4), a quick-release mechanism (6), spokes (7), a positioning mechanism (8), and a valve core (9), characterized in that: The outer casing (2) is fixedly connected to an installation ring (4), which has multiple evenly distributed ventilation holes (5). The installation ring (4) is provided with a quick-release mechanism (6). The inner side of the casing (2) is slidably connected to a spoke (7). The spoke (7) is provided with a positioning mechanism (8). The casing (2) is fixedly connected to a fixing rod (10). The fixing rod (10) is fixedly connected to a center block (11). The center block (11) is slidably connected to a slide rod (12). The bottom of the slide rod (12) is fixedly connected to a valve core (9). The valve core (9) is slidably connected to the spoke (7). The slide rod (12) is provided with a first spring (14). One end of the first spring (14) is fixedly connected to the valve core (9). The other end of the first spring (14) is fixedly connected to the center block (11). The casing (2) has two symmetrically distributed through holes (15). The positioning mechanism (8) includes a top pin (81), a guide block (82), a limiting rod (83), a third spring (84), an external threaded sleeve (85), and a protruding button (86). The top pin (81) is slidably connected inside the spoke (7). The top pin (81) is slidably connected to the housing (2). The guide block (82) is fixedly connected to the top pin (81). The guide block (82) is slidably connected to the spoke (7). The limiting rod (83) is fixedly connected inside the spoke (7). The limiting rod (83) is slidably connected to the guide block (82). The third spring (84) is provided outside the limiting rod (83). The external threaded sleeve (85) is threadedly connected to the inner side of the spoke (7). The external threaded sleeve (85) is in contact with the top pin (81).

2. The spoke-type glue-free wool spring vent sleeve according to claim 1, characterized in that: The outer sleeve (3) is fixedly connected to the outside of the casing (2), and the outer sleeve (3) is slidably connected to the mold (1).

3. The spoke-type glue-free wool spring vent sleeve according to claim 1, characterized in that: A limiting block (13) is fixedly connected to the top of the slide bar (12), and the limiting block (13) is in contact with the center block (11).

4. The spoke-type glue-free wool spring vent sleeve according to claim 1, characterized in that: The quick-installation mechanism (6) includes a limiting pin (61), a second spring (62), a lever (63), a rotating arm (64), and a rubber clip (65). The limiting pin (61) is slidably connected inside the mounting ring (4). The limiting pin (61) is slidably connected to the mold (1). The second spring (62) is provided inside the mounting ring (4). One end of the second spring (62) is fixedly connected to the limiting pin (61), and the other end of the second spring (62) is fixedly connected to the inner surface of the mounting ring (4). The lever (63) is fixedly connected to the limiting pin (61), and the lever (63) is slidably connected to the mounting ring (4).

5. The spoke-type glue-free wool spring vent sleeve according to claim 4, characterized in that: A rotating arm (64) is hinged to the lever (63), and a rubber clip (65) is fixedly connected to the rotating arm (64). The rubber clip (65) is engaged with the mounting ring (4).

6. The spoke-type glue-free vent sleeve for a wool spring according to claim 1, characterized in that: One end of the third spring (84) is fixedly connected to the guide block (82), and the other end of the third spring (84) is fixedly connected to the inner surface of the spoke (7).

7. The spoke-type glue-free vent sleeve for a wool spring according to claim 1, characterized in that: The external threaded sleeve (85) is fixedly connected with two protrusions (86), which are symmetrically distributed on the external threaded sleeve (85).

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