Injection machine for the production of tire vulcanization capsules

Abstract

The application relates to the field of tire vulcanization capsule production, and discloses a tire vulcanization capsule production injection machine, which comprises a bottom box and a connecting cylinder, a motor and an injection machine body are fixedly installed at the top of the bottom box, the output end of the motor is fixedly connected with one end of the injection machine body, a bottom ring and a shielding ring are fixedly connected to the inner wall of the connecting cylinder, a valve ball is slidingly installed on the inner wall of the connecting cylinder, the size specification of the top of the valve ball is matched with that of the bottom end of the shielding ring, the bottom end of the connecting cylinder is in communication with the inner wall of the injection machine body, and the size specification of the surface of the bottom ring and the shielding ring is matched with that of the inner wall of the connecting cylinder; the connecting cylinder is installed at the top of the injection machine body, the inner wall of the connecting cylinder is provided with the bottom ring and the shielding ring, and the inner wall of the connecting cylinder is slidingly connected with the valve ball made of polytetrafluoroethylene, so that the valve ball can be controlled to move upward after the glue liquid level rises, the valve ball is separated from the bottom ring, and the air in the injection machine body is discharged into the connecting cylinder.

Description

Technical Field

[0001] This application relates to the field of tire vulcanizing bladder production, and more particularly to an injection molding machine for producing tire vulcanizing bladders. Background Technology

[0002] The vulcanizing bladder is a key component inserted into the inner cavity of the tire blank during the tire vulcanization process. It is made of butyl rubber and has a hollow, thin-walled structure. It expands and solidifies by filling with compressed air, nitrogen, or superheated water, serving as both a heat transfer medium and a pressure transmission medium. It is often used in injection molding, where the rubber compound is plasticized by a cold-feed extruder and injected into the mold cavity, improving production efficiency. The bladder vulcanizing machine is a crucial piece of equipment in the rubber tire production industry. Its core technology lies in using a bladder vulcanization mode to replace the traditional water-based tire vulcanization process. When using the tire vulcanizing bladder injection machine, after the base box is installed stably, the injection unit is mounted on top of the base box. A motor is installed at one end of the injection unit. The rubber compound is poured into the inner wall of the injection unit, and the extrusion injection component inside the injection unit refining and plasticizing the compound to achieve the required viscous flow state for injection. Then, the motor controls the rubber compound to be injected into the mold cavity at sufficient pressure and speed.

[0003] Regarding the aforementioned technologies, the inventors believe that injection molding machines require regular maintenance. During the initial use after maintenance, the rubber material at the injection molding machine outlet needs a certain amount of time to melt, which can easily cause some air to enter the machine. This air then enters along with the material during injection, affecting the quality of the capsules produced.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the issue of air trapped within the material during the use of injection molding machines, this application provides an injection molding machine for producing tire vulcanizing bladders.

[0006] The injection molding machine for producing tire vulcanizing bladders provided in this application adopts the following technical solution: An injection molding machine for producing tire vulcanizing bladders includes a base box and a connecting cylinder. A motor and an injection molding machine body are fixedly installed on the top of the base box. The output end of the motor is fixedly connected to one end of the injection molding machine body. A bottom ring and a shielding ring are fixedly connected to the inner wall of the connecting cylinder, and a valve ball is slidably installed on the inner wall of the connecting cylinder. The size of the top of the valve ball is adapted to the size of the bottom of the shielding ring. The bottom end of the connecting cylinder is connected to the inner wall of the injection molding machine body. The size of the bottom ring and the shielding ring is adapted to the size of the inner wall of the connecting cylinder. The valve ball is made of polytetrafluoroethylene (PTFE).

[0007] Preferably, one end of the connecting cylinder is connected to a connecting pipe, one end of the connecting pipe is connected to a vacuum pump, and the bottom end of the vacuum pump is fixedly connected to the top of the bottom box.

[0008] Preferably, a distance detector is fixedly installed on the top of the connecting cylinder, and a detection probe is fixedly connected to the bottom of the distance detector. The center of the detection probe and the center of the distance detector are on the same straight line, and one end of the distance detector is electrically connected to one end of the vacuum pump via a wire.

[0009] Preferably, a shielding cover is rotatably mounted on the surface of the injection molding machine body. The dimensions of the shielding cover are compatible with the dimensions of the injection molding machine body, and the cross-section of the shielding cover is C-shaped. The top of the shielding cover is connected to the bottom of the connecting cylinder.

[0010] Preferably, the shielding cover and one end of the injection machine body are each fixedly connected to two threaded blocks. The two threaded blocks are symmetrically distributed about the shielding cover, and the surface of the threaded blocks is threaded with a connecting ring.

[0011] Preferably, one end of the connecting ring is movably connected to a fixing ring, the inner wall of the fixing ring is movably installed on the surface of the threaded block, and the center of the fixing ring and the center of the connecting ring are on the same straight line.

[0012] Preferably, an auxiliary strip is fixedly installed on the surface of the base box, the size and specifications of the fixing ring surface are adapted to the size and specifications of the base box surface, and the fixing ring is a rubber strip.

[0013] In summary, this application includes the following beneficial technical effects: 1. By installing a connecting cylinder on top of the injection molding machine body, with a bottom ring and a shielding ring installed on the inner wall of the connecting cylinder, and a polytetrafluoroethylene (PTFE) valve ball slidably connected to the inner wall of the connecting cylinder, the valve ball is controlled to move upward after the rubber liquid level rises, separating from the bottom ring and thus venting air from the injection molding machine body into the connecting cylinder. One end of the connecting cylinder is connected to a connecting pipe, and the other end of the connecting pipe is connected to a vacuum pump, so that the air in the connecting cylinder can be extracted after the vacuum pump is started, thereby controlling the rubber material to enter the connecting cylinder. A distance detector is installed on the top of the connecting cylinder, and a detection probe is fixedly connected to the bottom of the distance detector, so that the height of the valve ball can be detected by the detection probe. After the valve ball reaches the set position, the vacuum pump is controlled to shut down. Compared with the existing technology, this effectively improves the processing effect of the injection molding machine. 2. A shielding cover can also be installed on the surface of the injection molding machine body to facilitate cleaning or maintenance of the machine body after a period of use. Both the shielding cover and the injection molding machine body have threaded blocks at one end, with connecting rings threaded onto the surface of the threaded blocks. This allows the shielding cover to be fixed to the injection molding machine body surface using the threaded blocks and connecting rings. A fixing ring is connected to one end of the connecting ring to improve the stability of the connecting ring after installation. Rubber auxiliary strips are installed on the surface of the injection molding machine body to improve the sealing between the injection molding machine body and the shielding cover, effectively improving the performance of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an injection molding machine for producing tire vulcanizing bladders according to an embodiment of the application; Figure 2 This is a schematic diagram of the connecting cylinder structure according to an embodiment of the application; Figure 3 This is a side view of the embodiment of the application. Figure 4 This is a schematic diagram of the structure at point A in the embodiment of the application.

[0015] Explanation of reference numerals in the attached drawings: 1. Base box; 2. Motor; 3. Injection molding machine body; 4. Connecting cylinder; 5. Bottom ring; 6. Valve ball; 7. Shielding ring; 8. Connecting pipe; 9. Vacuum pump; 10. Detection probe; 11. Distance detector; 12. Shielding cover; 13. Threaded block; 14. Connecting ring; 15. Fixing ring; 16. Auxiliary strip. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0017] This application discloses an injection molding machine for producing tire vulcanizing bladders, with reference to... Figure 1 - Figure 2The system includes a base box 1. During use, after the base box 1 is stably installed, an injection molding machine body 3 is mounted on top of it. A motor 2 is installed at one end of the injection molding machine body 3. The rubber compound is poured into the inner wall of the injection molding machine body 3. The extrusion injection component inside the injection molding machine body 3 refining and plasticizing the rubber compound until it reaches the required viscous flow state for injection. The motor 2 controls the rubber compound to be injected into the mold cavity with sufficient pressure and speed. A connecting cylinder 4 is installed on top of the injection molding machine body 3. A bottom ring 5 and a shielding ring are installed on the inner wall of the connecting cylinder 4. 7. A polytetrafluoroethylene (PTFE) valve ball 6 is slidably connected to the inner wall of the connecting cylinder 4. Utilizing the high-temperature resistance of PTFE, the valve ball 6 is protected from damage caused by the high-temperature adhesive. This allows the valve ball 6 to move with the highest liquid level of the adhesive. After the liquid level rises, the valve ball 6 is controlled to move upward, separating it from the bottom ring 5. This allows air in the injection molding machine body 3 to be discharged into the connecting cylinder 4. Furthermore, after the valve ball 6 contacts the bottom end of the shielding ring 7, it shields the adhesive, preventing the adhesive from leaking out of the connecting cylinder 4.

[0018] Reference Figure 2 One end of the connecting cylinder 4 is connected to a connecting pipe 8, and the other end of the connecting pipe 8 is connected to a vacuum pump 9. The bottom end of the vacuum pump 9 is connected to the top of the bottom box 1 so that the air inside the connecting cylinder 4 can be extracted after the vacuum pump 9 is started, thereby controlling the glue to enter the connecting cylinder 4 and avoiding the problem of insufficient pressure on the glue causing air residue in the connecting cylinder 4. A distance detector 11 is installed on the top of the connecting cylinder 4, and a detection probe 10 is fixedly connected to the bottom end of the distance detector 11 so that the detection probe 10 emits a laser to contact the valve ball 6, and transmits the information to the distance detector 11 after the laser is reflected, thereby detecting the height of the valve ball 6. After the valve ball 6 reaches the set position, the vacuum pump 9 is controlled to shut down, avoiding the problem of the valve ball 6 moving up too fast and causing the glue to enter the connecting pipe 8 and the vacuum pump 9.

[0019] Reference Figure 3 - Figure 4A cover 12 is installed on the surface of the injection molding machine body 3. The top of the cover 12 is connected to the bottom of the connecting cylinder 4, so that the injection molding machine body 3 can be easily opened with the cover 12, making it convenient to clean or repair the inside of the injection molding machine body 3 after a period of use. Threaded blocks 13 are installed on one end of both the cover 12 and the injection molding machine body 3. A connecting ring 14 is threaded onto the surface of the threaded block 13, so that the cover 12 can be fixed to the surface of the injection molding machine body 3 with the help of the threaded block 13 and the connecting ring 14. After separating the connecting ring 14 from the threaded block 13, it is convenient to clean the cover 12. 2. When the machine is opened, a fixing ring 15 is connected to one end of the connecting ring 14. The inner wall of the fixing ring 15 is connected to the surface of the threaded block 13 so as to improve the stability of the connecting ring 14 after installation and avoid the problem of the connecting ring 14 becoming loose and separating from the threaded block 13. A rubber auxiliary strip 16 is installed on the surface of the injection machine body 3. The surface of the auxiliary strip 16 is movably connected to the bottom end of the shielding cover 12 so as to improve the sealing between the injection machine body 3 and the shielding cover 12, thereby preventing the glue from leaking out between the injection machine body 3 and the shielding cover 12.

[0020] The implementation principle of an injection molding machine for producing tire vulcanizing bladders according to an embodiment of this application is as follows: A connecting cylinder 4 is installed on top of the injection molding machine body 3. A bottom ring 5 and a shielding ring 7 are installed on the inner wall of the connecting cylinder 4. A polytetrafluoroethylene (PTFE) valve ball 6 is slidably connected to the inner wall of the connecting cylinder 4. Utilizing the high-temperature resistance of PTFE, the valve ball 6 is protected from damage by the high-temperature rubber material. The valve ball 6 moves with the highest liquid level of the rubber material. After the rubber material level rises, the valve ball 6 is controlled to move upwards, separating from the bottom ring 5. This allows air inside the injection molding machine body 3 to be discharged into the connecting cylinder 4. Furthermore, after the valve ball 6 contacts the bottom end of the shielding ring 7, it shields the rubber material, preventing leakage from the connecting cylinder 4. One end of the connecting cylinder 4 is connected to a connecting pipe 8. One end of the connecting pipe 8 is connected to a vacuum pump 9, and the bottom end of the vacuum pump 9 is connected to the top of the bottom box 1. This allows the air in the connecting cylinder 4 to be extracted after the vacuum pump 9 is started, thereby controlling the entry of the adhesive into the connecting cylinder 4 and avoiding the problem of insufficient pressure on the adhesive, which would result in residual air in the connecting cylinder 4. A distance detector 11 is installed on the top of the connecting cylinder 4, and a detection probe 10 is fixedly connected to the bottom end of the distance detector 11. This allows the detection probe 10 to emit a laser that contacts the valve ball 6, and transmits the information to the distance detector 11 after the laser is reflected, thereby detecting the height of the valve ball 6. After the valve ball 6 reaches the set position, the vacuum pump 9 is controlled to shut off, preventing the valve ball 6 from moving upward too quickly and causing the adhesive to enter the connecting pipe 8 and the vacuum pump 9.

[0021] A cover 12 can also be installed on the surface of the injection molding machine body 3. The top of the cover 12 is connected to the bottom of the connecting cylinder 4, so that the injection molding machine body 3 can be easily opened with the cover 12, making it convenient to clean or repair the inside of the injection molding machine body 3 after a period of use. Threaded blocks 13 are installed on one end of both the cover 12 and the injection molding machine body 3. A connecting ring 14 is threaded onto the surface of the threaded block 13, so that the cover 12 can be fixed to the surface of the injection molding machine body 3 with the help of the threaded block 13 and the connecting ring 14. After separating the connecting ring 14 from the threaded block 13, it is convenient to clean the cover. 12 is opened. One end of the connecting ring 14 is connected to a fixing ring 15. The inner wall of the fixing ring 15 is connected to the surface of the threaded block 13. This is to improve the stability of the connecting ring 14 after installation, and to avoid the problem of the connecting ring 14 becoming loose and separating from the threaded block 13. A rubber auxiliary strip 16 is installed on the surface of the injection machine body 3. The surface of the auxiliary strip 16 is movably connected to the bottom end of the shielding cover 12. This is to improve the sealing between the injection machine body 3 and the shielding cover 12, thereby preventing the glue from leaking out between the injection machine body 3 and the shielding cover 12.

[0022] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An injection molding machine for producing tire vulcanizing bladders, comprising a base box (1) and a connecting cylinder (4), characterized in that: The top of the base box (1) is fixedly installed with a motor (2) and an injection machine body (3). The output end of the motor (2) is fixedly connected to one end of the injection machine body (3). The inner wall of the connecting cylinder (4) is fixedly connected with a bottom ring (5) and a shielding ring (7). A valve ball (6) is slidably installed on the inner wall of the connecting cylinder (4). The size of the top of the valve ball (6) is compatible with the size of the bottom of the shielding ring (7).

2. The injection molding machine for producing tire vulcanizing bladders according to claim 1, characterized in that: The bottom end of the connecting cylinder (4) is connected to the inner wall of the injection molding machine body (3). The dimensions of the bottom ring (5) and the shielding ring (7) are compatible with the dimensions of the inner wall of the connecting cylinder (4). The valve ball (6) is a polytetrafluoroethylene ball.

3. The injection molding machine for producing tire vulcanizing bladders according to claim 1, characterized in that: One end of the connecting cylinder (4) is connected to a connecting pipe (8), and one end of the connecting pipe (8) is connected to a vacuum pump (9). The bottom end of the vacuum pump (9) is fixedly connected to the top of the bottom box (1).

4. The injection molding machine for producing tire vulcanizing bladders according to claim 1, characterized in that: A distance detector (11) is fixedly installed on the top of the connecting cylinder (4), and a detection probe (10) is fixedly connected to the bottom of the distance detector (11). The center of the detection probe (10) and the center of the distance detector (11) are on the same straight line. One end of the distance detector (11) is electrically connected to one end of the vacuum pump (9) by means of a wire.

5. The injection molding machine for producing tire vulcanizing bladders according to claim 1, characterized in that: A shielding cover (12) is rotatably mounted on the surface of the injection machine body (3). The size of the shielding cover (12) is compatible with the size of the injection machine body (3), and the cross-section of the shielding cover (12) is "C" shaped. The top of the shielding cover (12) is connected to the bottom of the connecting cylinder (4).

6. The injection molding machine for producing tire vulcanizing bladders according to claim 5, characterized in that: The shielding cover (12) and one end of the injection machine body (3) are both fixedly connected to two threaded blocks (13). The two threaded blocks (13) are symmetrically distributed about the shielding cover (12) as an axis, and the surface of the threaded blocks (13) is threaded with connecting rings (14).

7. The injection molding machine for producing tire vulcanizing bladders according to claim 6, characterized in that: One end of the connecting ring (14) is movably connected to a fixing ring (15). The inner wall of the fixing ring (15) is movably installed on the surface of the threaded block (13), and the center of the fixing ring (15) and the center of the connecting ring (14) are on the same straight line.

8. The injection molding machine for producing tire vulcanizing bladders according to claim 7, characterized in that: An auxiliary strip (16) is fixedly installed on the surface of the base box (1). The size of the surface of the fixing ring (15) is compatible with the size of the surface of the base box (1), and the fixing ring (15) is a rubber strip.

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