Electric center mechanism for column tie rod type tire curing press

Abstract

The electric central mechanism of a column tie rod type tire vulcanizer comprises a lower mold body (10) having a relief notch at its center position and fixedly positioned at that position, a ring seat cylinder head (20) configured to have a central mechanism bladder lower chuck (60) attached thereto and having a central hole at its center, a lower base plate (30), an upper mounting mechanism (40) configured to have a central mechanism bladder upper chuck (70) attached thereto, and a lower ring cylinder (50), the lower mold body (10) has the ring seat cylinder head (20) at its upper part, and the lower part and the lower base plate (30) are connected via the lower ring cylinder (50), the distance between the lower base plate (30) is guided by the drive of the lower ring cylinder (50), and the lower base plate (10) is connected to the lower part of the ring seat cylinder head (20) via a guide rod (80).

Description

[Technical Field]

[0001] This application claims priority from a Chinese patent application bearing application number 202322114670.3, filed with the China Patent Office on August 8, 2023, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of tire vulcanizer structures, and relates to, for example, an electric center mechanism of a column tie rod type tire vulcanizer. [Background technology]

[0003] The central mechanism of a column tie rod type tire vulcanizer in the related art uses two lower ring cylinders for each mold to separate the tire from the lower mold, and one upper ring cylinder to control the expansion and contraction of the bladder, and also requires the provision of a hydraulic system to provide hydraulic pressure to the cylinders, which results in high total costs for the cylinders and hydraulic system, and the hydraulic system requiring a large amount of space to drive the cylinders, resulting in a large amount of space being occupied by the entire equipment and being disadvantageous for the layout of other equipment in the workshop. Summary of the Invention

[0004] The present application provides an electric central mechanism for a column tie rod type tire vulcanizer, in which the up and down expansion and contraction of the bladder is achieved by an electric servo mechanism, and tire demolding is achieved by a lower ring cylinder, thereby reducing the space occupied by the power source and the space occupied by the entire equipment.

[0005] The present application is directed to a lower mold body having a relief notch at its center, the position of which is fixed; a ring seat cylinder head configured to mount a central mechanism bladder lower chuck and having a central hole at its center; With a lower seat board, an upper mounting mechanism configured to mount the center mechanism bladder upper chuck; a lower ring cylinder; The lower mold body has the ring seat cylinder head at its upper part, and the lower part and the lower seat plate are connected via the lower ring cylinder. The distance between the lower seat plate and the ring seat cylinder head is controlled by driving the lower ring cylinder. The lower seat plate is connected to the lower part of the ring seat cylinder head via a guide rod. The lower base plate is provided with a ball screw arranged vertically and fitted with a ball nut, the ball nut being integrated under the center rod, the center rod having a hollow cylindrical body at its middle and lower parts, and an upper part passing through the center hole of the ring seat cylinder head and then fixed to the upper mounting mechanism, and an electric device is externally connected to the lower part of the ball screw. We provide an electric center mechanism for a column tie rod type tire vulcanizer. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a structural schematic diagram of a perspective view of the present application. [Figure 2] FIG. 1 is a structural schematic diagram of the front view of the present application (with the lower mold body removed). [Figure 3] FIG. 1 is a structural schematic diagram of the side view of the present application (with the lower mold body removed). [Figure 4] FIG. 1 is a structural schematic diagram of a cross-section of the present application (with the lower mold body removed). [Figure 5] FIG. 1 is a schematic diagram showing a state in which the bladder is protruding when the present application is applied. [Figure 6] FIG. 1 is a schematic diagram of the bladder retracted during application of the present invention. [Explanation of symbols]

[0007] 10···lower mold body, 20···ring seat cylinder head, 30···lower seat plate, 40···upper mounting mechanism, 50···lower ring cylinder, 51···lower piston rod, 60···central mechanism bladder lower chuck, 70···central mechanism bladder upper chuck, 80···guide rod, 90···ball screw, 100···ball nut, 110···central rod, 111···hollow cylindrical body, 120···fixing sleeve, 121···hollow guide sleeve, 130···lateral servo motor, 140···steering output reducer, 150···coupling, 160···auxiliary mounting plate, 170···position sensing switch, 180···bladder mechanism, 190···tire. DETAILED DESCRIPTION OF THE INVENTION

[0008] As shown in FIGS. 1 to 6, the electric central mechanism of the column tie rod type tire vulcanizer includes a lower mold body 10, a ring seat cylinder head 20, a lower seat plate 30, an upper mounting mechanism 40, and at least two lower ring cylinders 50. A relief notch is provided at the center of the lower mold body 10, and the position of the lower mold body 10 is fixed. The ring seat cylinder head 20 is configured to be fitted with a central mechanism bladder lower chuck 60, and a central hole is provided in the center of the ring seat cylinder head 20; The upper mounting mechanism 40 is configured to mount the central mechanism bladder upper chuck 70, A ring seat cylinder head 20 is provided on the upper part of the lower mold body 10, and the lower part of the lower mold body 10 and the lower seat plate 30 are connected via a lower ring cylinder 50. The distance between the lower mold body 10 and the lower seat plate 30 is guided by the drive of the lower ring cylinder 50, and the lower seat plate 30 is connected to the lower position of the ring seat cylinder head 20 via a plurality of guide rods 80 distributed in a ring shape. A vertically arranged ball screw 90 is provided on the lower base plate 30, and a ball nut 100 is threadedly connected to the ball screw 90. The ball nut 100 is fixed to the lower part of a center rod 110 via a bolt. The middle and lower parts of the center rod 110 are hollow cylinders 111, and the upper part of the center rod 110 passes through the center hole of the ring seat cylinder head 20 and is then fixed to the upper mounting mechanism 40. An electric device is externally connected to the lower part of the ball screw 90.

[0009] In some embodiments, a fixed sleeve 120 is provided at the position of the relief notch of the lower mold body 10, and the fixed sleeve 120 is fixed to the lower mold body 10, and a hollow guide sleeve 121 is provided at the center. The central rod 110 passes through the hollow guide sleeve 121 and the central hole of the ring seat cylinder head 20 and then protrudes upward. The hollow guide sleeve 121 ensures that the central rod 110 can only move up and down, and ensures that the central rod 110 moves up and down stably and reliably. The upper surface of the fixed sleeve 120 is used to define the lower limit position of the ring seat cylinder head 20 in the clamped state, and the lower ring cylinder 50 is ensured to be in a securely lowered position.

[0010] In some embodiments, the lower portion of the guide rod 80 passes through a corresponding side end of the ball nut 100, and the lower portion of the center rod 110 is fixedly attached to the ball nut 100, thereby ensuring that the guide rod 80 cannot rotate the center rod.

[0011] In some embodiments, the number of lower ring cylinders 50 is two, and the two lower ring cylinders 50 are arranged side by side on both sides of the central rod 110, respectively. The lower piston rod 51 of each lower ring cylinder 50 is fixed to the corresponding position of the lower seat plate 30, and the lower seat plate 30 is fixed to the lower position of the ring seat cylinder head 20 via two guide rods 80 arranged side by side on both sides, respectively. The guide rods 80 are arranged to pass through the corresponding positions of the fixed sleeve 120, and during operation, the two lower ring cylinders 50 perform lifting and lowering operations synchronously.

[0012] In some embodiments, the electric device comprises a servo motor and a reducer, the servo motor being a lateral servo motor 130, and the reducer being a steering output reducer 140. The lateral servo motor 130 is arranged laterally, with its output end connected to the input end of the steering output reducer 140, and the output end of the steering output reducer 140 being connected to the lower end of the ball screw 90 via a coupling 150, ensuring stable and reliable transmission. This installation also ensures that the entire mechanism does not occupy excessive height space.

[0013] In some embodiments, the lower mold body 10 is further provided with an auxiliary mounting plate 160, and the auxiliary mounting plate 160 is provided with a position sensing switch 170, which is configured to sense the position of the ball nut 100 and ensure stable and reliable operation.

[0014] In the figure, number 180 is the bladder mechanism and number 190 is the tire.

[0015] This embodiment of the present application provides an electric central mechanism for a column tie rod type tire vulcanizing press, in which the hydraulic system and the two lower ring cylinders and one upper ring cylinder of each mold are canceled out. The center rod 110 and ball nut 100 are connected together via a bolt. An electric device drives the ball screw 90, causing the ball nut 100 and center rod 110 to move up and down, thereby realizing the up and down expansion and contraction of the bladder. At the same time, the relative movement of the ball screw 90 and the ball nut 100 can precisely control the up and down expansion and contraction of the bladder. Furthermore, when the lower output end of the lower ring cylinder 50 retracts upward, it moves the ring seat cylinder head 20 upward relative to the fixed lower mold body 10, thereby releasing the tire 190 from the lower mold body 10 and completing the demolding. The up and down expansion and contraction of the bladder is achieved by an electric servo mechanism, and the demolding of the tire 190 is achieved by the lower ring cylinder 50. This reduces the space occupied by the power source and reduces the space occupied by the entire equipment.

Claims

1. A lower mold body (10) having a relief notch at its center, the position of which is fixed; a ring seat cylinder head (20) configured to mount a central mechanism bladder lower chuck (60) and having a central hole at its center; A lower board (30), an upper mounting mechanism (40) configured to mount a central mechanism bladder upper chuck (70); a lower ring cylinder (50); The lower mold body (10) has the ring seat cylinder head (20) at its upper part, and the lower part and the lower seat plate (30) are connected via the lower ring cylinder (50). The distance between the lower seat plate (30) is controlled by driving the lower ring cylinder (50). The lower seat plate (30) is connected to the lower part of the ring seat cylinder head (20) via a guide rod (80). The lower plate (30) is provided with a ball screw (90) disposed vertically and fitted with a ball nut (100), the ball nut (100) being integrated under a central rod (110), the central rod (110) having a hollow cylinder (111) at its middle and lower parts, and an upper part passing through a central hole of the ring seat cylinder head (20) and then fixed to the upper mounting mechanism (40), and an electric device is externally connected to the lower part of the ball screw (90). Electric center mechanism of a column tie rod type tire curing press.

2. A fixed sleeve (120) is provided at the position of the relief notch of the lower mold body (10) so as to be fixed to the lower mold body (10), and a hollow guide sleeve (121) is provided at the center of the fixed sleeve (120). The center rod (110) passes through the hollow guide sleeve (121) and the center hole of the ring seat cylinder head (20) and then protrudes upward. The electric center mechanism of the column tie rod type tire vulcanizer according to claim 1.

3. The upper surface of the fixing sleeve (120) is used to define the lower limit position of the ring seat cylinder head (20) in a clamped state. The electric center mechanism of the column tie rod type tire vulcanizer according to claim 2.

4. The lower portion of the guide rod (80) passes through the corresponding side end of the ball nut (100). The electric center mechanism of the column tie rod type tire vulcanizer according to claim 2.

5. The lower ring cylinder (50) is two in number, and two of them are arranged side by side on both sides of the center rod (110), and each lower piston rod (51) is fixed to a corresponding position of the lower seat plate (30), and the lower seat plate (30) is fixed to a lower position of the ring seat cylinder head (20) via the guide rod (80). The electric center mechanism of the column tie rod type tire vulcanizer according to claim 1.

6. The electric device includes a servo motor and a reducer, and the output end of the servo motor is connected to the lower end of the ball screw (90) via the reducer. The electric center mechanism of the column tie rod type tire vulcanizer according to claim 1.

Images