Tire post-cure inflator

Abstract

A tire post-cure inflator comprising: a frame; a lifting rod provided on the frame; a chuck assembly connected to a lower end of the lifting rod and provided with an air filling port for inflating a tire; lifting drive cylinders provided on both sides of the lifting rod and configured to drive the lifting rod to move up and down; and a pressing assembly provided on the frame, comprising a presser rod and a drive assembly configured to drive the presser rod to press the lifting rod after it has been lowered to a predetermined position.

Description

[Technical Field]

[0001] This application claims priority to a Chinese patent application filed on November 30, 2022, with application number 202223190243.5, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of tire post-cure inflation, for example, to a tire post-cure inflator. [Background technology]

[0003] Post-cure inflation is a key process in tire production, addressing thermal shrinkage deformation of tires. The post-cure inflator is the main auxiliary equipment connected to the rear of the vulcanizer. The vulcanized tire is shaped and cooled by the post-cure inflator, ensuring the proper outer edge size of the tire's outer strands. The tire inflation process requires a large inflation force, so it is typically compressed using a hydraulic or air cylinder. As shown in Figure 8, a large hydraulic cylinder is required to maintain this force, which not only increases the volume but also leads to oil leakage. Summary of the Invention [Problem to be solved by the invention]

[0004] The present application provides a tire post-cure inflation pressing device that presses and holds a tire during the inflation process, reduces the pressure received by the lifting drive cylinder, meets practical needs by using a lifting drive cylinder with a small volume, reduces the occurrence of oil or air leakage, and extends the practical life of the lifting drive cylinder. [Means for solving the problem]

[0005] This application is a frame; a lifting rod provided on the frame; a chuck assembly connected to a lower end of the lifting rod and provided with an air filling port for inflating a tire; lifting drive cylinders provided on both sides of the lifting rod and configured to drive the lifting rod so as to move up and down; and a pressing assembly provided on the frame and including a presser rod and a drive assembly configured to drive the presser rod so as to press the lifting rod after it has lowered to a predetermined position. A tire post-cure inflator is disclosed. [Brief explanation of the drawings]

[0006] [Figure 1] 1 is a front structural schematic diagram of a tire post-cure inflation pressing device according to an embodiment of the present application when not pressing. [Figure 2] 1 is a front structural schematic diagram of a tire post-cure inflation pressing device according to an embodiment of the present application when pressing. [Figure 3] 1 is a schematic side view of a tire post-cure inflation pressing device according to an embodiment of the present application. [Figure 4] 1 is a front structural schematic diagram of a pressing assembly according to an embodiment of the present application; [Figure 5] FIG. 10 is a front structural schematic diagram of a pressing assembly in which the pressing rod is hollow according to an embodiment of the present application. [Figure 6] 1 is a structural schematic diagram of a pressing plate according to an embodiment of the present application. [Figure 7] FIG. 1 is a schematic diagram of the location of the air injection holes. [Figure 8] FIG. 10 is a schematic diagram showing pressing by a hydraulic cylinder in the related art. [Explanation of symbols]

[0007] 1···Frame, 11···Cross beam, 2···Lifting rod, 21···Lifting drive cylinder, 3···Chuck assembly, 31···Air filling port, 4···Pressure rod, 41···Mounting seat, 42···Guide sleeve, 51···Slide rail, 52···Pulling cylinder, 61···Motor, 62···Main gear, 63···Driven gear, 71···Mounting plate, 72···Moving cylinder, 73···Pressure plate, 74···Through hole, 75···Lower pressure surface. DETAILED DESCRIPTION OF THE INVENTION

[0008] The present application will now be described in more detail with reference to the drawings.

[0009] As shown in FIGS. 1 to 6, the present application discloses a tire post-cure inflator including a frame 1 and a pressing assembly, wherein the frame 1 is provided with a lifting rod 2, a chuck assembly 3 is connected to the lower end of the lifting rod 2, and an air filling port 31 for inflating a tire is provided in the chuck assembly 3, and lifting drive cylinders 21 are provided on both sides of the lifting rod 2, and the lifting drive cylinders 21 drive the lifting rod 2 to move up and down, and the lifting drive cylinders may be air cylinders or hydraulic cylinders. a pressing assembly provided on the frame, the pressing assembly including a pressing rod and a driving assembly, the driving assembly driving the pressing rod so as to press the lifting rod after it has been lowered to a predetermined position; The advantage of adopting the above technical solution is that by providing the pressing assembly to press the lift rod 2 and maintain its position, the pressure received by the lift drive cylinder 21 is reduced, and a lift drive cylinder 21 with a small volume can be used to meet usage needs, reducing the occurrence of oil or air leakage situations and extending the service life of the lift drive cylinder 21.

[0010] As shown in FIGS. 4 and 5 , in some embodiments, the pressing assembly may have a mounting seat 41 and a guide sleeve 42, the mounting seat 41 is mounted on the frame 1, a mounting hole is formed in the mounting seat 41, a bearing is mounted in the mounting hole, the guide sleeve 42 is mounted in the bearing of the mounting seat 41, a screw is formed in the guide sleeve 42, the pressing rod 4 is mounted in the guide sleeve 42, and a screw that fits into the guide sleeve 42 is formed on the pressing rod 4, the drive assembly drives the rotation of the guide sleeve 42, and the pressing rod 4 moves up and down within the guide sleeve 42.

[0011] The advantage of adopting the above technical solution is that the pressure rod 4 is installed inside the guide sleeve 42 and connected to the guide sleeve 42 via a screw; under the control of the drive assembly, the guide sleeve 42 rotates and the pressure rod 4 can descend inside the guide sleeve 42; the engagement between the pressure rod 4 and the guide sleeve 42 presses against the lifting rod 2 to maintain its position, thereby reducing the pressure received by the lifting drive cylinder 21.

[0012] In some embodiments, a structural form can be adopted in which a moving device is provided below the mounting seat 41, and the moving device includes a slide rail 51 and a pulling cylinder 52, as shown in Figures 1 to 3, the slide rail 51 is attached to the frame 1, the pulling cylinder 52 is attached along the width direction of the frame 1, a slider is provided on the slide rail 51, the mounting seat 41 is attached to the slider with a screw, the pulling cylinder 52 is attached horizontally to the frame 1, and the output end of the pulling cylinder 52 is connected to the bottom of the mounting seat 41.

[0013] The advantage of adopting the above technical solution is that when the lifting rod 2 moves up to change the tire, the moving device moves the mounting seat 41 to the side of the lifting rod 2 to avoid a collision between the lifting rod 2 and the pressure rod 4; after the lifting rod 2 moves down, the moving device moves the mounting seat 41 above the lifting rod 2, accurately directing the pressure rod 4 toward the lifting rod 2 and pressing it against the top of the lifting rod 2.

[0014] In some embodiments, the drive assembly may adopt a structural form, as shown in FIG. 4 , which includes a motor 61, a driving gear 62, and a driven gear 63, in which the motor 61 is mounted vertically on the mounting seat 41, the driving gear 62 is connected to the output end of the motor 61 by a key, the driving gear 62 and the driven gear 63 are arranged to mesh with each other, and the driven gear 63 is fixedly mounted on the upper surface of the guide sleeve 42.

[0015] The advantage of adopting the above technical solution is that the motor 61 is provided to drive the rotation of the driving gear 62 and the driven gear 63, and to move and rotate the guide sleeve 42, thereby driving the pressure rod 4 to move up and down within the mounting seat 41. By using the driving method of the motor 61 and the gears, the position of the pressure rod 4 can be easily controlled so that the pressure rod 4 reaches the pressing position, and the size of the inflated tire can be ensured.

[0016] In some embodiments, as shown in FIG. 5, the pressure rod 4 is a hollow rod that is fitted onto the lifting rod 2, a mounting plate 71 is provided below the pressure rod 4, a movable cylinder 72 is attached to the side of the mounting plate 71, a pressure plate 73 is provided at the output end of the movable cylinder 72, the pressure plate 73 is provided adjacent to the mounting plate 71, and the pressure plate 73 presses the lifting rod 2 when the movable cylinder 72 is driven.

[0017] The advantage of adopting the above technical solution is that there is no need to move the mounting seat 41, and by setting the pressure rod 4 as a hollow rod, the lifting rod 2 can be moved within the pressure rod 4, and when it is necessary to press the lifting rod 2, the cylinder 72 can be moved to move the lower pressure surface 75 of the pressure plate 73 above the lifting rod 2.

[0018] In some embodiments, the pressure plate 73 may adopt a structural form in which a through hole 74 through which the lifting rod 2 passes is provided, a lower pressure surface 75 is provided on one side of the through hole 74, and the lower pressure surface 75 is provided on the lower surface of the pressure plate 73.

[0019] The advantage of adopting the above technical solution is that when the lifting rod 2 needs to be raised, the lifting rod 2 passes through the through-hole 74, and after the lifting rod 2 has descended to a predetermined position, the moving cylinder 72 pulls the pressure plate 73 horizontally, and the lower pressure surface 75 presses the lifting rod 2.

[0020] In some embodiments, as shown in FIG. 3, the pressing assembly and the lifting rod 2 may adopt a structural form in which the pressing assembly and the lifting rod 2 are provided at both the top and bottom of the tire post-cure inflator, the pressing assembly at the top of the tire post-cure inflator and the pressing assembly at the bottom of the tire post-cure inflator are provided symmetrically, and the lifting rod 2 at the top of the tire post-cure inflator and the lifting rod 2 at the bottom of the tire post-cure inflator are provided symmetrically.

[0021] The advantage of adopting the above technical solution is that the upper and lower parts of the tire post-cure inflator are arranged symmetrically, so that two tires can be inflated and pressed together at once, thereby improving the processing efficiency of the post-cure inflator.

[0022] In some embodiments, as shown in FIGS. 2 and 7, the chuck assembly 3 can be divided into an upper chuck and a lower chuck, the upper chuck is connected to a lifting rod 2, and can be moved up and down by driving the lifting rod 2, the lower chuck is fixed to a cross beam 11 within the frame, and the air filling port 31 is provided on the lower chuck and connected to an external air source to inflate the tire.

[0023] In operation, the external equipment first places the tire to be processed on the lower chuck of the cross beam 11. Then, the lifting rod 2 lowers the upper chuck in the chuck assembly 3 and, working together with the lower chuck, presses and fixes the tire. After it has lowered to a predetermined position, the pulling cylinder 52 pulls and moves the mounting seat 41, moving it above the lifting rod 2 (if the pressure rod 4 is hollow, the moving cylinder 72 moves the lower pressing surface 75 of the pressure plate 73 above the lifting rod 2). The pressure rod 4 is then lowered by the drive assembly, pressing and holding the lifting rod 2 for a certain period of time. After the tire is inflated and shaped, the pressure rod 4 rises, and then the lifting rod 2 rises. The external equipment then removes the processed tire and places another tire to be processed for further processing.

Claims

1. Frame (1), a lifting rod (2) provided on the frame (1); a chuck assembly (3) connected to the lower end of the lifting rod (2) and provided with an air filling port (31) for inflating the tire; Lifting drive cylinders (21) provided on both sides of the lifting rod (2) and configured to drive the lifting rod (2) to move up and down; a pressing assembly provided on the frame (1) and including a pressing rod (4) and a drive assembly configured to drive the pressing rod (4) so ​​as to press the lifting rod (2) after it has been lowered to a predetermined position; The pressing assembly further comprises a mounting seat (41) provided on the frame (1) and a guide sleeve (42) rotatably provided on the mounting seat (41) and having a screw provided therein, the pressing rod (4) is provided in the guide sleeve (42) and has a screw that fits with the guide sleeve (42), the drive assembly is configured to drive the rotation of the guide sleeve (42), and the pressing rod (4) moves up and down within the guide sleeve (42). Tire post-cure inflator.

2. A moving device is provided below the mounting seat (41), and the moving device includes a slide rail (51) on which a slider is provided, and a pulling cylinder (52) that is horizontally provided on the frame (1) and has an output end connected to the lower part of the mounting seat (41), and the mounting seat (41) is provided on the slider.

2. The tire post-cure inflator according to claim 1.

3. The drive assembly includes a motor (61) mounted on the mounting seat (41), a driving gear (62) mounted at the output end of the motor (61), and a driven gear (63) fixedly connected to the guide sleeve (42), and the driving gear (62) and the driven gear (63) are arranged to mesh with each other.

2. The tire post-cure inflator according to claim 1.

4. The pressure rod (4) is a hollow rod, fitted onto the lifting rod (2), and has a mounting plate (71) below it, with a moving cylinder (72) on its side. A pressure plate (73) is provided at the output end of the moving cylinder (72) so as to press the lifting rod (2) when the moving cylinder (72) is driven.

2. The tire post-cure inflator according to claim 1.

5. The presser plate (73) has a through hole (74) through which the lifting rod (2) passes and on one side of which is provided a lower presser surface (75), and the lower presser surface (75) is provided on the lower surface of the presser plate (73).

2. The tire post-cure inflator according to claim 1.

6. Both the upper and lower parts are provided with a pressing assembly and a lifting rod, and the upper pressing assembly and the lower pressing assembly are provided symmetrically, and the upper lifting rod and the lower lifting rod are provided symmetrically; 2. The tire post-cure inflator according to claim 1.

Images