Annular tread segmented mold without air holes

Abstract

The pore-free annular tread segmented mold comprises a bottom plate, the upper end of the bottom plate is fixedly connected with multiple sets of connecting rods, the ends of the multiple sets of connecting rods are fixedly connected with top plates, the outer walls of the multiple sets of connecting rods are slidably connected with sliding plates, and the lower end faces of the sliding plates are fixedly connected with upper molds. A lower mold is fixedly connected to the upper end of the bottom plate, one set of connecting pipes extend to the inner wall of the lower mold, pistons and sliding blocks are connected into the connecting pipes in a sliding mode, and the sliding blocks are connected through a connecting mechanism. By arranging the piston, the connecting pipe, the sliding block and the like, when the tire is vulcanized, the outer wall of the tire is in contact with the opening of the connecting pipe, so that a closed space is formed in the connecting pipe, rubber can be prevented from being squeezed into the connecting pipe in the vulcanizing process, the connecting pipe only allows air to enter and does not leak materials, the air-hole-free effect is achieved, and the service life of the tire is prolonged. In this way, the situation that the rubber hair is broken in the exhaust hole is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible molds, in particular to a ring-shaped tread flexible mold without air holes. Background Art

[0002] In the existing tire vulcanization process, in order to release the air in the mold cavity so that the rubber can be evenly distributed in the mold, the existing tire molds are all provided with a plurality of exhaust holes on the mold cavity. The required exhaust holes are usually formed by drilling.

[0003] During the vulcanization process, the tread area of ​​the tire needs to be vented. Usually, this is done through circular air holes on the top surface of the inner tube of the mold, which run through the entire mold to the outer surface. Under high pressure and temperature, the unvulcanized rubber will be squeezed out of the mold top cavity. When the air is exhausted from the mold, the rubber is squeezed into these vents, forming the so-called "rubber hair", some of which may break in the mold vents, thereby hindering the exhaust of air in the cavity. Therefore, it is necessary to redesign a non-porous annular tread active mold to address the above problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a ring-shaped tread active mold without air holes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pore-free annular tread flexible mold comprises a base plate, a plurality of connecting rods are fixedly connected to the upper end of the base plate, the ends of the plurality of connecting rods are fixedly connected to top plates, the outer walls of the plurality of connecting rods are slidably connected to slide plates, the lower end surface of the slide plates are fixedly connected to an upper mold, the upper end of the base plate is fixedly connected to a lower mold, the upper mold is slidably connected in the lower mold, the side wall of the base plate is fixedly connected to a device cylinder, the outer walls of the device cylinder are respectively fixedly connected to two groups of connecting pipes, and both are connected to the inside of the device cylinder, one group of the connecting pipes extends to the inner wall of the lower mold, a piston and a slider are respectively slidably connected in the connecting pipes, and the slider is connected to the slider through a connecting mechanism.

[0007] Preferably, the connection mechanism comprises two groups of sliding rods fixedly connected to the outer wall of the slider, the two groups of sliding rods are symmetrically arranged, and the other ends of the two groups of sliding rods are fixedly connected to the piston.

[0008] Preferably, a threaded rod is rotatably connected to the inner wall of the connecting pipe, and the sliding block is threadably connected to a threaded section of the threaded rod.

[0009] Preferably, an electric telescopic rod is fixedly connected to the upper surface of the top plate, and the telescopic end of the electric telescopic rod passes through the top plate and is fixedly connected to the slide plate.

[0010] Preferably, the end of the threaded rod is fixedly connected to a limiting block, and the radius of the limiting block is greater than the radius of the threaded rod.

[0011] Preferably, a servo motor is fixedly connected to the outer wall of the connecting pipe, and the end of the output shaft of the servo motor is coaxially fixedly connected to the threaded rod.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model provides a piston, a connecting pipe, a slider and other devices. When the tire is vulcanized, the outer wall of the tire contacts the opening of the connecting pipe, so that a closed space is formed inside the connecting pipe. During the vulcanization process, rubber can be prevented from being squeezed into the connecting pipe. The connecting pipe is only used for air intake without material leakage, so that the effect of no air holes is achieved. In this way, the rubber hair will not break inside the exhaust hole.

[0014] 2. The utility model provides a threaded rod, a piston and other devices. With the help of the rotation of the threaded rod, the piston can be driven to slide back and forth in the device cylinder. After the tire is vulcanized, the tread area can be exhausted by the sliding of the piston. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a ring-shaped tread active mold without air holes proposed by the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the middle device cylinder.

[0017] Figure 3 for Figure 2 Section view.

[0018] In the figure: 1. bottom plate; 2. connecting rod; 3. top plate; 4. electric telescopic rod; 5. slide plate; 6. lower mold; 7. upper mold; 8. device cylinder; 9. connecting pipe; 10. servo motor; 11. threaded rod; 12. sliding rod; 13. piston; 14. limit block; 15. slider. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3A non-porous annular tread active mold comprises a bottom plate 1, a plurality of connecting rods 2 are fixedly connected to the upper end of the bottom plate 1, the ends of the plurality of connecting rods 2 are fixedly connected to the top plate 3, the outer walls of the plurality of connecting rods 2 are slidably connected to the slide plates 5, the lower end surface of the slide plates 5 is fixedly connected to the upper mold 7, the upper end of the bottom plate 1 is fixedly connected to the lower mold 6, the upper mold 7 is slidably connected in the lower mold 6, the side wall of the bottom plate 1 is fixedly connected to the device cylinder 8, the outer wall of the device cylinder 8 is respectively fixedly connected to two groups of connecting pipes 9, and both are connected to the inside of the device cylinder 8, one group of connecting pipes 9 extends to the inner wall of the lower mold 6, the connecting pipes 9 are respectively slidably connected to the piston 13 and the slider 15, and the slider 15 passes through The connecting mechanism is connected to the slider 15, and the connecting mechanism includes two groups of slide rods 12 fixedly connected to the outer wall of the slider 15. The two groups of slide rods 12 are symmetrically arranged, and the other ends of the two groups of slide rods 12 are fixedly connected to the piston 13. The inner wall of the connecting tube 9 is rotatably connected with a threaded rod 11, and the slider 15 is threadedly connected to the threaded section of the threaded rod 11. When the rubber is vulcanized, the pipe mouth of the connecting tube 9 contacts the rubber, so that a closed space is formed inside the connecting tube 9 and the device tube 8. With the help of the self-locking property of the threaded rod 11, the rubber can be prevented from being squeezed into these connecting tubes 9 due to the influence of air pressure during the vulcanization process. Through this design without pores, the generated rubber hair can be prevented from breaking in the exhaust hole of the mold.

[0021] Reference Figure 3 and Figure 1 The upper end surface of the top plate 3 is fixedly connected to an electric telescopic rod 4, the telescopic end of the electric telescopic rod 4 passes through the top plate 3 and is fixedly connected to the slide plate 5, the end of the threaded rod 11 is fixedly connected to a limiting block 14, the radius of the limiting block 14 is larger than the radius of the threaded rod 11, the outer wall of the connecting tube 9 is fixedly connected to a servo motor 10, the end of the output shaft of the servo motor 10 is coaxially fixedly connected to the threaded rod 11, and the set limiting block 14 can limit the position of the slider 15.

[0022] In the utility model, the specific function of the device is as follows: when using the device, the slide plate 5 and the upper mold 7 at its lower end are driven to slide downward by means of the telescopic end of the electric telescopic rod 4 until they slide into the lower mold 6. During the vulcanization of the tire, a closed space is formed in the connecting tube 9 on one side of the piston 13 and at the lower mold 6. At the same time, due to the self-locking property of the threaded rod 11, during the vulcanization process, the rubber can be prevented from being squeezed into the connecting tube 9. The connecting tube 9 is only provided to take in air without material leakage, thereby achieving the effect of no pores. When the vulcanization is completed and exhaust is required, the tire shape has been formed. At this time, the tire is separated from the pipe mouth of the connecting tube 9. The threaded rod 11 can be driven to rotate by the servo motor 10 to realize the reciprocating sliding of the piston 13 in the device tube 8. During the sliding, the air in the lower mold 6 can be drawn into the device tube 8 and then discharged to the outside, thereby realizing the exhaust of the tread area.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A non-porous annular tread active mold, comprising a base plate (1), characterized in that: The upper end of the bottom plate (1) is fixedly connected to a plurality of connecting rods (2), the ends of the plurality of connecting rods (2) are fixedly connected to a top plate (3), the outer walls of the plurality of connecting rods (2) are slidably connected to a slide plate (5), the lower end surface of the slide plate (5) is fixedly connected to an upper mold (7), the upper end of the bottom plate (1) is fixedly connected to a lower mold (6), the upper mold (7) is slidably connected inside the lower mold (6), the side wall of the bottom plate (1) is fixedly connected to a device cylinder (8), the outer wall of the device cylinder (8) is respectively fixedly connected to two groups of connecting pipes (9), and both are connected to the inside of the device cylinder (8), one group of the connecting pipes (9) extends to the inner wall of the lower mold (6), the connecting pipes (9) are respectively slidably connected to a piston (13) and a slider (15), and the slider (15) is connected to the slider (15) through a connecting mechanism.

2. The annular tread active mold without air holes according to claim 1, characterized in that: The connection mechanism comprises two groups of slide rods (12) fixedly connected to the outer wall of the slide block (15), the two groups of slide rods (12) are symmetrically arranged, and the other ends of the two groups of slide rods (12) are fixedly connected to the piston (13).

3. The annular tread active mold without air holes according to claim 2, characterized in that: The inner wall of the connecting pipe (9) is rotatably connected to a threaded rod (11), and the sliding block (15) is threadably connected to a threaded section of the threaded rod (11).

4. The annular tread active mold without air holes according to claim 3, characterized in that: The upper end surface of the top plate (3) is fixedly connected to an electric telescopic rod (4), and the telescopic end of the electric telescopic rod (4) passes through the top plate (3) and is fixedly connected to the slide plate (5).

5. The annular tread active mold without air holes according to claim 4, characterized in that: The end of the threaded rod (11) is fixedly connected to a limiting block (14), and the radius of the limiting block (14) is greater than the radius of the threaded rod (11).

6. The annular tread active mold without air holes according to claim 5, characterized in that: A servo motor (10) is fixedly connected to the outer wall of the connecting pipe (9), and the end of the output shaft of the servo motor (10) is coaxially fixedly connected to the threaded rod (11).

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