Servo electric pressurizing device for tire vulcanization mold

Abstract

The utility model relates to a servo electric pressurizing device for a tire vulcanizing mold, which is provided with a servo motor, an RV speed reducer and a gear box, the RV speed reducer is fixed on one side of a driving gear of the gear box, a cylinder barrel is fixed on one side of a driven gear of the gear box, and the upper end of the cylinder barrel is connected with a vulcanizing machine table to fix the whole pressurizing device on the vulcanizing machine table; the RV speed reducer is driven by a servo motor through a coupler and drives a driving gear in the gearbox, a pressurizing push rod is sleeved with an inner cavity of the cylinder barrel and is in threaded connection with a lead screw, and when the lead screw is driven by a driven gear in the gearbox, the pressurizing push rod is guided by the inner cavity of the cylinder barrel to linearly ascend and descend up and down. And the pressurizing push rod extends and retracts to apply pressure to and release pressure from the tire vulcanization mold. The device has the advantages of reasonable structure, intelligence, controllability, stable movement, accurate positioning, safety, reliability, convenience in maintenance, energy conservation, environment friendliness and the like.

Description

Technical Field

[0001] The utility model relates to a tire vulcanizing mold servo electric pressurizing device used for a tire vulcanizer. Background Art

[0002] The pressurizing device is an important part of the vulcanizer. When the tire is vulcanized, the pressurizing device applies pressure to the outside of the tire vulcanization mold to balance the pressure inside the model during vulcanization, ensuring that the tire is vulcanized to standard. The pressurizing device on the existing vulcanizer uses a pressurizing cylinder, and its movement process is as follows: after the mold of the vulcanizer is closed, the pressurizing cylinder in the center of the machine is controlled by the hydraulic system to extend the cylinder rod, and the vulcanized tire is pressurized through the transmission of a series of parts, and it also plays a role in locking the mold and maintaining pressure. After the vulcanization is completed, the pressurizing cylinder is depressurized and the cylinder rod retracts back to its original position. This type of cylinder pressurizing device has disadvantages such as high noise, complex oil pipe layout, and cumbersome maintenance, and there is also a safety hazard of oil leakage. Summary of the invention

[0003] The utility model aims to solve the existing problems in the oil cylinder pressurization of a tire vulcanizer and to provide a tire vulcanization mold servo electric pressurizing device for the tire vulcanizer.

[0004] The purpose of the utility model is achieved in this way. A servo electric pressurizing device for a tire vulcanizer is provided with a servo motor, an RV reducer and a gear box. The RV reducer is fixed on one side of the driving gear of the gear box, and a cylinder is fixed on one side of the driven gear of the gear box. The upper end of the cylinder is connected to the vulcanizer machine platform to fix the entire pressurizing device on the vulcanizer machine platform; the RV reducer is driven by the servo motor through a coupling and transmits the driving gear in the gear box. A pressurizing push rod is sleeved in the inner cavity of the cylinder, and the pressurizing push rod is threadedly connected to the screw rod. When the screw rod is driven by the driven gear in the gear box, the pressurizing push rod is guided by the inner cavity of the cylinder and linearly lifted and lowered, so that the pressurizing push rod is extended and retracted to pressurize and relieve the tire vulcanization mold.

[0005] In the utility model, the inner cavity of the cylinder is provided with an upper ring shoulder and a lower ring shoulder, which form a limiting structure for the pressurizing push rod to rise and fall linearly.

[0006] In the utility model, the RV reducer is connected to the driving gear through a key fit, and the screw rod is connected to the driven gear through a key fit.

[0007] The utility model adopts the structure of servo motor and RV reducer transmission, and has the advantages of reasonable structure, intelligent controllable, smooth movement, accurate positioning, safety and reliability, easy maintenance, energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0009] In the figure, 1. servo motor; 2. RV reducer; 3. gear box; 4. cylinder; 5. vulcanizer machine; 6. driving gear; 7. driven gear; 8. pressure push rod; 9. screw rod; 10. tire vulcanization mold; 11. upper shoulder; 12. lower shoulder. Implementation

[0010] Reference Figure 1 The present embodiment is a servo electric pressurizing device for a tire vulcanizing mold, which is provided with a servo motor 1, an RV reducer 2 and a gear box 3. The RV reducer is fixed on one side of the driving gear of the gear box, and a cylinder 4 is fixed on one side of the driven gear of the gear box. The upper end of the cylinder is connected to the vulcanizing machine platform to fix the entire pressurizing device on the vulcanizing machine platform 5; the RV reducer is connected to the driving gear 6 in the gear box through a flat key, and the RV reducer is driven by the servo motor through a coupling and transmits the driving gear. A pressurizing push rod 8 is sleeved in the inner cavity of the cylinder, and the pressurizing push rod is threadedly connected to the screw rod 9. When the screw rod is driven by the driven gear 7 in the gear box through a flat key, the pressurizing push rod is guided by the inner cavity of the cylinder and lifted up and down linearly, so that the pressurizing push rod is extended and retracted to pressurize and relieve pressure on the tire vulcanizing mold 10; the inner cavity of the cylinder is provided with an upper annular shoulder 11 and a lower annular shoulder 12, which constitute a limiting structure for the pressurizing push rod to lift up and down linearly.

[0011] The working principle of the utility model is as follows: when it is necessary to apply pressure to the mold, the servo motor rotates after receiving the electric control signal, and is transmitted to the RV reducer through the coupling. The RV reducer is linked with the driving gear through the flat key to transmit the driving force to the screw rod. The screw rod is driven by the driven gear to make a rotational motion. Through the rotation of the screw rod and the thread of the pressure push rod, the rotational power is converted into an upward thrust, pushing the pressure push rod to extend upward, and the upper end face of the pressure push rod contacts the tire vulcanization mold and begins to apply pressure to the tire vulcanization mold. The cylinder plays a guiding role for the pressure push rod and bears the downward reaction force; when it is necessary to relieve the pressure on the mold, the servo motor rotates in the opposite direction after receiving the electric control signal, and the pressure push rod is retracted through mechanical transmission, and the upper end face of the pressure push rod leaves the tire vulcanization mold to relieve the pressure. Since the movement speed and output pressure of the pressure push rod are controlled by the servo motor through the system, the position can be accurate and the pressure can be controlled.

Claims

1. A servo electric pressurizing device for a tire vulcanization mold, characterized in that: A servo motor (1), an RV reducer (2) and a gear box (3) are provided, wherein the RV reducer is fixed to one side of the driving gear of the gear box, and a cylinder barrel (4) is fixed to one side of the driven gear of the gear box, and the upper end of the cylinder barrel is connected to a vulcanizing machine platform to fix the entire pressurizing device on the vulcanizing machine platform (5); The RV reducer is driven by a servo motor through a coupling and transmits a driving gear (6) in a gear box. A pressurizing push rod (8) is sleeved in the inner cavity of the cylinder. The pressurizing push rod and the lead screw (9) are threadedly connected. When the lead screw is transmitted by a driven gear (7) in the gear box, the pressurizing push rod is guided by the inner cavity of the cylinder and rises and falls linearly up and down, so that the pressurizing push rod extends and retracts to apply pressure to and relieve pressure on the tire vulcanization mold (10).

2. The tire vulcanization mold servo electric pressurizing device according to claim 1, characterized in that: The inner cavity of the cylinder is provided with an upper annular shoulder (11) and a lower annular shoulder (12), forming a linear up and down lifting limit structure for the pressurized push rod.

3. The tire vulcanization mold servo electric pressurizing device according to claim 1, characterized in that: The RV reducer is transmission-connected with the driving gear through a key fit, and the screw rod is transmission-connected with the driven gear through a key fit.

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