Servo electric center mechanism of tire vulcanizing machine

Abstract

The utility model relates to a servo electric central mechanism of a tire vulcanizing machine. An upper ring electric cylinder and two lower ring electric cylinders which are symmetrically arranged on the left side and the right side of the upper ring electric cylinder are arranged on a connecting seat; the lower ring electric cylinder is provided with a lower ring servo motor, a lower ring piston push rod is arranged in an inner cavity of the lower ring cylinder barrel in a sleeved mode and guided by a piston guide sleeve, and the lower ring piston push rod is fixedly connected with a connecting base through a connecting clamping plate; through synchronous operation of two lower ring servo motors, lower ring screw rods in two lower ring electric cylinders rotate together, and the lower ring screw rods rotate to enable lower ring piston push rods to do linear reciprocating motion, so that a ring seat ascends and descends to a specified stroke; the upper ring electric cylinder is provided with an upper ring servo motor and a speed reducer, an upper ring piston push rod is arranged in an inner cavity of an upper ring cylinder barrel in a sleeved mode, high-speed rotation of the upper ring servo motor is converted into low-speed high-torque rotation through the speed reducer, an upper ring lead screw is driven, and the upper ring lead screw rotates to enable the upper ring piston push rod to do linear reciprocating motion. The central rod of the central mechanism is controlled to lift up and down.

Description

Technical Field

[0001] The utility model relates to a servo electric central mechanism of a tire vulcanizer. Background Art

[0002] With the continuous changes in market demand and the continuous development of technology, the design of tire vulcanizers is also constantly updated. The central mechanism is the main component of the tire vulcanizer. The central mechanism is installed in the center of the vulcanization chamber to control the capsule and promote tire demoulding, laying the foundation for the automated production of the tire vulcanization process. Therefore, the technical improvement of the central mechanism has always been the focus of attention of tire manufacturers. In the prior art, the central mechanism usually uses a cylinder transmission method to drive the tire to rise after vulcanization, thereby achieving the purpose of separating the tire from the lower mold. However, in the actual production and assembly process, it was found that the original cylinder structure had high requirements on the material and processing of parts, and the cost of parts processing was high; the original cylinder structure had limited space, which required the equipment to increase the installation space requirements, causing difficulties for subsequent maintenance; the cylinder structure seal ring was aging and prone to oil leakage, which would cause certain safety problems. Summary of the invention

[0003] The utility model aims to provide a servo electric center mechanism of a tire vulcanizer in view of the problems existing in the hydraulic center mechanism of a tire vulcanizer in the prior art.

[0004] The purpose of the utility model is achieved in this way. A servo electric center mechanism of a tire vulcanizer is provided with a ring seat and a piston guide sleeve. The ring seat is installed on a connecting seat. An upper ring electric cylinder and two lower ring electric cylinders symmetrically located on the left and right sides of the upper ring electric cylinder are installed on the connecting seat; the lower ring electric cylinder is installed with a lower ring servo motor, and the lower ring electric cylinder includes a lower ring cylinder barrel, a lower ring piston push rod and a lower ring screw rod. The lower ring piston push rod is sleeved in the inner cavity of the lower ring cylinder barrel and guided by the piston guide sleeve. The lower ring piston push rod is fixedly connected to the connecting seat through a connecting card plate; through the synchronous operation of the two lower ring servo motors, the lower ring screw rods in the two lower ring electric cylinders are rotated together, and the lower ring screw rod is driven by the lower ring screw rod. The rotation drives the lower ring lead screw nut to convert the rotational motion into linear motion of the lower ring piston push rod for linear reciprocating motion, so that the ring seat is lifted up and down to the specified stroke; the upper ring electric cylinder is equipped with an upper ring servo motor and a reducer, and the upper ring electric cylinder includes an upper ring cylinder barrel, an upper ring piston push rod and an upper ring lead screw. The upper ring piston push rod is sleeved in the inner cavity of the upper ring cylinder barrel, and the high-speed rotation of the upper ring servo motor is converted into low-speed and high-torque rotation through the reducer and transmits the upper ring lead screw. The upper ring lead screw drives the upper ring lead screw nut through rotation to convert the rotational motion into linear motion of the upper ring piston push rod for linear reciprocating motion, and the upper ring piston push rod controls the center rod of the central mechanism to lift up and down.

[0005] The utility model comprises a reducer connected and installed with an upper ring cylinder through a reducer connecting seat, a first bearing is installed at a transmission rod end of an upper ring screw, the first bearing is installed in a first cylinder cover and is pressed up and down by a first nut and a first pressure cover, and the first cylinder cover is sealed and connected with the upper ring cylinder through threads and prevented from loosening by a set screw.

[0006] The utility model comprises a lower ring servo motor connected and installed with the lower ring cylinder through a motor connecting seat, a second bearing is installed at the transmission rod end of the lower ring screw, the second bearing is installed in the second cylinder cover and is pressed up and down by a second nut and a second pressure cover, and the second cylinder cover is sealed and connected with the lower ring cylinder through threads and prevented from loosening by set screws.

[0007] The utility model has the advantages of high strength, low noise, smooth movement, energy saving and environmental protection, simple operation and maintenance, can realize high-precision motion control, and can completely replace traditional hydraulic cylinders and air cylinders, thereby improving the application efficiency of the work. 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, upper ring servo motor; 2, reducer; 3, upper ring screw; 4, reducer connecting seat; 5, first nut; 6, first cylinder head; 7, first bearing; 8, first pressure cover; 9, upper ring piston push rod; 10, upper ring cylinder; 11, lower ring servo motor; 12, motor connecting seat; 13, center rod; 14, second nut; 15, second bearing; 16, second cylinder head; 17, second pressure cover; 18, lower ring screw; 19, lower ring piston push rod; 20, lower ring cylinder; 21, piston guide sleeve; 22, connecting clamp plate; 23, connecting seat; 24, ring seat. Implementation

[0010] Reference Figure 1The present embodiment is a servo electric center mechanism of a tire vulcanizer, which is provided with a ring seat 24 and a piston guide sleeve 21. The ring seat is mounted on a connecting seat 23, on which an upper ring electric cylinder and two lower ring electric cylinders symmetrically located on the left and right sides of the upper ring electric cylinder are mounted; the lower ring electric cylinder is mounted with a lower ring servo motor 11, and the lower ring electric cylinder comprises a lower ring cylinder barrel 20, a lower ring piston push rod 19 and a lower ring screw rod 18. The lower ring piston push rod is sleeved in the inner cavity of the lower ring cylinder barrel and guided by the piston guide sleeve, and the lower ring piston push rod is fixedly connected to the connecting seat through a connecting card plate 22; through the synchronous operation of the two lower ring servo motors, the lower ring screw rods in the two lower ring electric cylinders rotate together, and the lower ring screw rod rotates through the rotation The rotation drives the lower ring lead screw nut to convert the rotational motion into the linear motion of the lower ring piston push rod for linear reciprocating motion, so that the ring seat can be lifted up and down to the specified stroke; the upper ring electric cylinder is equipped with an upper ring servo motor 1 and a reducer 2, and the upper ring electric cylinder includes an upper ring cylinder barrel 10, an upper ring piston push rod 9 and an upper ring lead screw 3. The upper ring piston push rod is sleeved in the inner cavity of the upper ring cylinder barrel, and the high-speed rotation of the upper ring servo motor is converted into a low-speed and high-torque rotation through the reducer and transmits the upper ring lead screw. The upper ring lead screw drives the upper ring lead screw nut through rotation to convert the rotational motion into the linear motion of the upper ring piston push rod for linear reciprocating motion, and the upper ring piston push rod controls the center rod 13 of the central mechanism to lift up and down.

[0011] In the utility model, the reducer is connected and installed with the upper ring cylinder through the reducer connecting seat 4, the transmission rod end of the upper ring screw is equipped with a first bearing 7, the first bearing is installed in the first cylinder cover 6 and is pressed up and down by the first nut 5 and the first pressure cover 8, and the first cylinder cover is sealed and connected with the upper ring cylinder through threads and prevented from loosening by set screws.

[0012] In the utility model, the lower ring servo motor is connected and installed with the lower ring cylinder through a motor connecting seat 12, a second bearing 15 is installed at the transmission rod end of the lower ring screw, the second bearing is installed in the second cylinder cover 16 and is pressed up and down by a second nut 14 and a second pressure cover 17, and the second cylinder cover is sealed and connected with the lower ring cylinder through threads and prevented from loosening by set screws.

[0013] The assembly process of the utility model is as follows:

[0014] First, the upper ring screw 3 is installed and fixed in the upper ring piston push rod 9 through the upper ring screw nut, the upper ring screw nut is supported by the first pressure cap 8, the upper ring screw 3 is inserted into the first bearing 7, and then fixed with the first nut 5. After the above parts are assembled, they are installed in the upper ring cylinder barrel 10 at the same time, and the threaded connection of the first cylinder cover 6 is used for sealing, and the set screw is driven in to prevent loosening, so as to form an upper ring electric cylinder as a whole; similarly, the lower ring screw 18 is installed and fixed in the lower ring piston push rod 19 through the lower ring screw nut, the lower ring screw nut is supported by the second pressure cap 17, the lower ring screw 18 is inserted into the second bearing 15, and then fixed with the second nut 14. After the above parts are assembled, they are installed in the lower ring cylinder barrel 20 at the same time, and the threaded connection of the second cylinder cover 16 is used for sealing, and the set screw is also used for preventing loosening, so as to form a lower ring electric cylinder as a whole;

[0015] Second, after the ring seat 24 is installed on the connecting seat 23, the assembled upper ring electric cylinder is installed, and after being fixed by screws, it is placed in the piston guide sleeve 21, and then the upper ring servo motor 1 is installed into the through hole on the reducer 2, and the reducer connecting seat 4 is continued to be connected, and the upper ring electric cylinder assembled in the piston guide sleeve 21 is connected by screws. In this way, the assembly of the upper ring electric cylinder of the central mechanism is completed;

[0016] Third, install the assembled lower ring electric cylinder on the motor connecting seat 12, connect the lower ring servo motor 11, and after forming a whole, install it in the screw hole below the piston guide sleeve 21, and fix it with the connecting clamp plate 22, so as to realize the synchronous movement of the left and right lower ring electric cylinders. In this way, a new type of servo electric center mechanism is assembled.

Claims

1. A servo electric center mechanism for a tire vulcanizer, characterized in that: A ring seat (24) and a piston guide sleeve (21) are provided, the ring seat is mounted on a connecting seat (23), an upper ring electric cylinder and two lower ring electric cylinders symmetrically located on the left and right sides of the upper ring electric cylinder are mounted on the connecting seat; The lower ring electric cylinder is equipped with a lower ring servo motor (11), and comprises a lower ring cylinder barrel (20), a lower ring piston push rod (19) and a lower ring lead screw (18). The lower ring piston push rod is sleeved in the inner cavity of the lower ring cylinder barrel and guided by a piston guide sleeve, and the lower ring piston push rod is fixedly connected to the connecting seat via a connecting clamp (22); through the synchronous operation of the two lower ring servo motors, the lower ring lead screws in the two lower ring electric cylinders rotate together, and the lower ring lead screw drives the lower ring lead screw nut through rotation to convert the rotational motion into a linear motion of the lower ring piston push rod to perform a linear reciprocating motion, so that the ring seat is lifted up and down to a specified stroke; The upper ring electric cylinder is equipped with an upper ring servo motor (1) and a reducer (2). The upper ring electric cylinder comprises an upper ring cylinder barrel (10), an upper ring piston push rod (9) and an upper ring lead screw (3). The upper ring piston push rod is sleeved in the inner cavity of the upper ring cylinder barrel. The reducer converts the high-speed rotation of the upper ring servo motor into low-speed high-torque rotation and transmits the upper ring lead screw. The upper ring lead screw drives the upper ring lead screw nut through rotation to convert the rotational motion into linear motion of the upper ring piston push rod for linear reciprocating motion. The upper ring piston push rod controls the central rod (13) of the central mechanism to rise and fall.

2. The tire vulcanizer servo electric center mechanism according to claim 1, characterized in that: The reducer is connected and installed with the upper ring cylinder via a reducer connecting seat (4); a first bearing (7) is installed at the transmission rod end of the upper ring screw; the first bearing is installed in the first cylinder cover (6) and is pressed up and down by a first nut (5) and a first pressure cover (8); the first cylinder cover is sealed and connected with the upper ring cylinder via threads and is prevented from loosening by a set screw.

3. The tire vulcanizer servo electric center mechanism according to claim 1, characterized in that: The lower ring servo motor is connected and installed with the lower ring cylinder via a motor connecting seat (12); a second bearing (15) is installed at the transmission rod end of the lower ring screw; the second bearing is installed in the second cylinder cover (16) and is pressed up and down by a second nut (14) and a second pressure cover (17); the second cylinder cover is sealed and connected with the lower ring cylinder via threads and is prevented from loosening by a set screw.

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