Servo electric mold opening and closing device for tire vulcanization mold

Abstract

The utility model relates to a servo electric mold opening and closing device for a tire vulcanization mold. The servo electric mold opening and closing device comprises a lifting frame, a guide seat, a ball screw, a speed reducer, a servo motor and a plunger cylinder, the lifting frame slides up and down along a linear guide rail installed on the stand column through a sliding block of the guide seat. The guide seat is provided with a lead screw nut matched with the ball screw, the ball screw penetrates through the lead screw nut, and the upper end and the lower end of the ball screw are respectively provided with a bearing and are vertically arranged on the stand column; the speed reducer is installed on the stand column through a fixing base and driven by a servo motor. An output shaft of the speed reducer is connected with the lower end of the ball screw through a coupler. When the mold is opened and closed, the servo motor drives the ball screw to rotate through the speed reducer, the rotating motion of the ball screw is converted into vertical linear lifting motion through the lead screw nut, and the lifting frame is driven to perform mold opening and closing actions. The device has the advantages of high efficiency, stable action, convenient control, stable and reliable performance and the like.

Description

Technical Field

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

[0002] The mold opening and closing mechanism is one of the most critical components of a tire curing press, used to install the mold and perform its opening and closing movements. Traditional linear lift mold opening and closing mechanisms are driven by hydraulic systems, with hydraulic pumps, valves, and sensors controlling the mold opening, closing, and dwell positions. The speed and smoothness of the mold opening and closing movements directly impact the efficiency of auxiliary tire production processes. However, hydraulic systems are prone to greater vibration as speed increases, and significant shock vibrations are also generated during startup and shutdown, impacting the stability and precision of the entire curing press. Furthermore, hydraulic systems are prone to leaks, causing contamination and potential safety hazards. Summary of the Invention

[0003] The utility model aims to solve the problems existing in the mold opening and closing mechanism of a tire vulcanizer and provide a tire vulcanizing mold servo electric mold opening and closing device for the tire vulcanizer.

[0004] The purpose of the utility model is achieved in this way: a servo electric mold opening and closing device for a tire vulcanization mold comprises a lifting frame, a guide seat, a ball screw, a reducer, a servo motor and a plunger cylinder; the lifting frame slides up and down along a linear guide rail installed on a column through a slider of the guide seat; the guide seat is equipped with a screw nut matching the ball screw, the ball screw passes through the screw nut and the upper and lower ends of the ball screw are respectively equipped with bearings and are vertically installed on the column; the reducer is installed on the column through a fixed seat and driven by a servo motor, and the output shaft of the reducer is connected to the lower end of the ball screw through a coupling; when opening and closing the mold, the servo motor drives the ball screw to rotate through the reducer, and the rotational motion of the ball screw is converted into an up and down linear lifting motion through the screw nut, driving the lifting frame to perform the mold opening and closing action.

[0005] In the utility model, a plunger cylinder is installed on the fixing seat or the column, a piston rod of the plunger cylinder is connected to the guide seat, and an oil port of the plunger cylinder is connected to the accumulator through a pipeline.

[0006] In the utility model, the guide seat is fixedly connected with the lifting frame supporting plate.

[0007] The utility model adopts a servo motor and a reducer transmission structure, and has the advantages of high efficiency, smooth movement, convenient control, stable and reliable performance, etc. The structure of installing the plunger cylinder realizes mechanism balance and energy recovery. When the mold is opened, the accumulator can release the hydraulic oil to transmit the pressure back to the plunger cylinder, providing the lifting device with rising power, reducing the starting load of the servo motor when opening the mold and reducing energy consumption, thereby playing the role of energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0009] Figure 2 yes Figure 1 Schematic diagram of the side structure of the embodiment.

[0010] In the figure, 1. lifting frame; 2. guide seat; 3. ball screw; 4. reducer; 5. servo motor; 6. plunger cylinder; 7. slider; 8. column; 9. linear guide; 10. screw nut; 11. bearing; 12. fixed seat; 13. coupling; 14. piston rod; 15. oil port; 16. lifting frame support plate. Implementation Method

[0011] Reference Figures 1 to 2 The present embodiment is a servo-electric mold opening and closing device for a tire vulcanization mold, comprising a lifting frame 1, a guide seat 2, a ball screw 3, a reducer 4, a servo motor 5, and a plunger cylinder 6; the lifting frame slides up and down along a linear guide rail 9 mounted on a column 8 via a slider 7 of the guide seat; the guide seat is equipped with a screw nut 10 matching the ball screw, the ball screw passes through the screw nut, and the upper and lower ends of the ball screw are each equipped with bearings 11 and are vertically mounted on the column; the reducer is mounted on the column via a fixed seat 12 and driven by a servo motor, and the output shaft of the reducer is connected to the lower end of the ball screw via a coupling 13; when opening and closing the mold, the servo motor drives the ball screw to rotate through the reducer, and the rotational motion of the ball screw is converted into an up and down linear lifting motion through the screw nut, thereby driving the lifting frame to perform the mold opening and closing action; the plunger cylinder is mounted on the fixed seat, the piston rod 14 of the plunger cylinder is connected to the guide seat, and the oil port 15 of the plunger cylinder is connected to the accumulator through a pipeline; the guide seat is fixedly connected to a lifting frame support plate 16.

[0012] The utility model realizes smooth deceleration through the servo motor control system and the reducer, reduces vibration and impact on the whole machine, and ensures the stability and precision of the equipment; when closing the mold, the plunger cylinder can convert the gravitational potential energy of the lifting frame and the mold through hydraulic oil and store it in the accumulator, thereby realizing mechanism balance and energy recovery; when opening the mold, the accumulator can release the hydraulic oil and transmit the pressure back to the plunger cylinder, providing upward power for the lifting device, reducing the starting load of the servo motor when opening the mold, reducing energy consumption, and thus playing the role of energy saving and environmental protection.

Claims

1. A servo-electric mold opening and closing device for a tire vulcanization mold, characterized in that: It comprises a lifting frame (1), a guide seat (2), a ball screw (3), a reducer (4) and a servo motor (5); The lifting frame slides up and down along a linear guide rail (9) installed on a column (8) via a slider (7) of a guide seat; The guide seat is provided with a screw nut (10) matched with a ball screw, the ball screw passes through the screw nut and the upper and lower ends of the ball screw are respectively provided with bearings (11) and are vertically installed on the column; The reducer is mounted on the column via a fixing seat (12) and is driven by the servo motor, and the output shaft of the reducer is connected to the lower end of the ball screw via a coupling (13); when the mold is opened or closed, the servo motor drives the ball screw to rotate via the reducer, and the rotational motion of the ball screw is converted into an up and down linear lifting motion via the screw nut, thereby driving the lifting frame to perform the mold opening or closing action.

2. The tire vulcanization mold servo electric mold opening and closing device according to claim 1, characterized in that: A plunger cylinder (6) is mounted on the fixed seat or the column, a piston rod (14) of the plunger cylinder is connected to the guide seat, and an oil port (15) of the plunger cylinder is connected to the accumulator via a pipeline.

3. The tire vulcanization mold servo electric mold opening and closing device according to claim 1, characterized in that: The guide seat is fixedly connected to a lifting frame support plate (16).

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