Sealing structure for forming drum of one-step forming machine for all-steel radial tire

Abstract

The utility model belongs to the technical field of forming drums, and particularly relates to an all-steel radial tire one-step forming machine forming drum sealing structure which comprises a drum shaft, a forming middle drum is arranged on the outer side of the middle of the drum shaft, and sealing side edge drums are slidably connected to the outer side of the drum shaft and located on the left side and the right side of the forming middle drum in a sleeved mode. A motor is in contact with the interior of the drum shaft, mounting plates are fixedly connected to the front side and the rear side of the motor, the mounting plates are in contact with the drum shaft, bolts are movably connected to the interiors of the mounting plates, the bolts are in threaded connection with the drum shaft, and limiting ring grooves are formed in the surfaces of the bolts. Under the action of structures such as the motor and the threaded rod, the movable block can be pushed to move, and then the sealing side edge drum is driven to move to be tightly attached to a tire tread, so that the sealing effect of the forming drum is guaranteed, and under the action of structures such as the clamping hole and the clamping ball, the position of the sealing side edge drum can be accurately adjusted for use.

Description

Technical Field

[0001] The utility model relates to the technical field of building drums, in particular to a building drum sealing structure of a full-steel radial tire one-step building machine. Background Art

[0002] As we all know, the all-steel radial tire one-step forming machine is a device used to manufacture all-steel radial tires. It adopts a one-step forming process, that is, the tire cord, tire body and tire belt are put into the forming mold at one time for forming; the forming drum is a sealing structure of the forming machine. It is achieved by installing a sealing drum on the periphery of the forming mold and controlling the gas in the drum through air pressure to make it fit closely with the forming mold, thereby achieving the sealing of the mold.

[0003] The utility model patent with announcement number CN216032666U discloses a tire building drum, which includes a drum shaft, a middle drum and two side drums, the two side drums are sleeved on the drum shaft; the middle drum is sleeved on the drum shaft and located between the two side drums; the middle drum includes a base and a plurality of support assemblies arranged at intervals along the outer circumference of the base and capable of radial movement, each support assembly including two support cover plates capable of axial movement. The tire building drum can adapt to the molding of tires of different sizes, and can prevent the tire body from being sunken due to lack of support when the tread is attached to the support rubber, thereby ensuring the molding quality of the tire.

[0004] However, the existing tire building drum still has certain shortcomings: although the existing tire building drum adopts the arrangement of motors, threaded rods and other structures to drive the sealing side drums to fit and seal the tread, due to the influence of factors such as inertia, the sealing side drum displacement is easily inaccurate. Utility Model Content

[0005] The utility model aims to provide a sealing structure for a forming drum of a one-step forming machine for an all-steel radial tire, which solves the problem that although the existing tire forming drum adopts a motor, a threaded rod and other structures to drive the sealing side drum to fit and seal the tread, the sealing side drum is easily displaced inaccurately due to the influence of factors such as inertia.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure of a forming drum of a full-steel radial tire one-step forming machine, comprising a drum shaft, a forming middle drum is arranged on the outer side of the middle part of the drum shaft, sealing side drums are slidably sleeved on the outer side of the drum shaft and on the left and right sides of the forming middle drum, a motor is contacted inside the drum shaft, a mounting plate is fixedly connected to the front and rear sides of the motor, each of the mounting plates is in contact with the drum shaft, a bolt is movably connected inside each of the mounting plates, the bolt is connected to the drum shaft by threads, a limiting ring groove is provided on the surface of the bolt, an end plate is in contact with the surface of the drum shaft, a limiting rod is fixedly connected to the surface of the end plate close to the bolt, the limiting rod is slidably connected to the drum shaft, the limiting rod is slidably connected to the limiting ring groove, a spring is arranged on the outer side of the limiting rod, a threaded rod is fixedly connected to the output shaft of the motor, the threaded rod is rotatably connected to the drum shaft, a moving block is threadedly connected to the outer side of the threaded rod, and a positioning mechanism is jointly arranged on the moving block and the drum shaft.

[0007] Preferably, one end of the spring one is welded to the drum shaft, and the other end of the spring one is welded to the end plate. Through the provision of the spring one, the end plate can be connected for use.

[0008] Preferably, the moving block is slidably connected to the drum shaft, and the moving block is fixedly connected to the sealing side drum. Through the arrangement of the moving block, the sealing side drum can be driven to be moved for use.

[0009] Preferably, the positioning mechanism includes a guide post, the drum shaft is fixedly connected to the guide post, the guide post is slidably connected to the moving block, the guide post is provided with a clamping hole, the moving block is fixedly connected to a fixed plate, the upper end of the fixed plate is welded with a spring 2, the other end of the spring 2 is welded with a clamping rod, the clamping rod is slidably connected to the clamping hole, and the output shaft is driven by a motor to rotate to drive the threaded rod to rotate. Under the threaded connection relationship, the moving block can be pushed to move, thereby driving the sealing side drum to move in the direction of the forming intermediate drum, so that the sealing side drum and the tread are fitted together to improve the sealing effect of the forming drum. In this process, when the moving block slides along the surface of the guide post, the inner wall of the clamping hole squeezes the clamping rod, thereby pushing the spring 2 to deform, and finally the clamping rod is separated from the clamping hole. Under the action of force, the clamping rod slides along the surface of the guide post, and when the clamping rod slides into the next clamping hole, the spring 2 recovers its deformation to push the clamping rod to insert into the clamping hole, so as to accurately control the sealing side drum.

[0010] Preferably, there are a plurality of the clamping holes, which are evenly distributed on the guide column. The arrangement of the clamping holes facilitates clamping with the clamping rod.

[0011] Preferably, two guide pillars are provided, and the two guide pillars are symmetrically distributed on the drum shaft. Through the provision of the guide pillars, the moving block can be guided.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model can fix the mounting plate through the setting of the thread, so that the motor is placed stably. Under the action of the spring, the limiting ring groove, the limiting rod and other structures, the bolts can be inserted and limited to avoid the problem of bolts being stripped due to vibration, so as to ensure the long-term stability of the motor.

[0014] 2. The utility model can push the moving block to move through the action of the motor, threaded rod and other structures, thereby driving the sealing side drum to move, and closely fit the tread to ensure the sealing effect of the forming drum. Under the action of the clamping hole, clamping ball and other structures, the position of the sealing side drum can be accurately adjusted for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 A front cross-sectional view of

[0017] Figure 3 For the utility model Figure 1 A partial structural cutaway stereogram;

[0018] Figure 4 For the utility model Figure 3 A magnified image of point A;

[0019] Figure 5 For the utility model Figure 2 Enlarged view of point B.

[0020] In the figure: 1. drum shaft; 2. forming middle drum; 3. sealing side drum; 4. motor; 5. mounting plate; 6. bolt; 7. limiting ring groove; 8. end plate; 9. limiting rod; 10. spring one; 11. threaded rod; 12. moving block; 13. positioning mechanism; 131. guide column; 132. clamping hole; 133. fixing plate; 134. spring two; 135. clamping rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A sealing structure of a forming drum of a full-steel radial tire one-step forming machine comprises a drum shaft 1, a forming middle drum 2 is arranged on the outer side of the middle part of the drum shaft 1, sealing side drums 3 are slidably sleeved on the outer side of the drum shaft 1 and on the left and right sides of the forming middle drum 2, the inside of the drum shaft 1 contacts with a motor 4, the front and rear sides of the motor 4 are fixedly connected with mounting plates 5, each mounting plate 5 contacts with the drum shaft 1, the inside of each mounting plate 5 is movably connected with a bolt 6, the bolt 6 is connected to the drum shaft 1 through a thread, a limiting ring groove 7 is provided on the surface of the bolt 6, the surface of the drum shaft 1 contacts with an end plate 8, the surface of the end plate 8 close to the bolt 6 is fixedly connected with a limiting rod 9, the limiting rod 9 is slidably connected to the drum shaft 1, the limiting rod 9 is slidably connected to the limiting ring groove 7, a spring 10 is arranged on the outer side of the limiting rod 9, one end of the spring 10 is welded to the drum shaft 1, and the other end of the spring 10 is welded to the end plate 8, and the spring 10 is welded to the drum shaft 1. 0, the end plate 8 can be connected and used, the output shaft of the motor 4 is fixedly connected with a threaded rod 11, the threaded rod 11 is rotatably connected to the drum shaft 1, the outer side of the threaded rod 11 is connected with a moving block 12 through a thread, the moving block 12 is slidably connected to the drum shaft 1, and the moving block 12 is fixedly connected to the sealing side drum 3. Through the setting of the moving block 12, the sealing side drum 3 can be driven to move and use, by pulling the end plate 8 to move away from the drum shaft 1, so as to drive the limit rod 9 to move, the spring 10 is deformed, and then the bolt 6 is pushed through the mounting plate 5 to make the bolt 6 contact with the drum shaft 1, the bolt 6 is rotated to make the bolt 6 do a threaded movement, the bolt 6 is installed, and then the mounting plate 5 is fixed, and the end plate 8 is loosened to make the spring 10 restore its deformation, so as to pull the limit rod 9 to insert into the limit ring groove 7, and the bolt 6 is inserted and limited to avoid the problem of vibration and thread stripping of the bolt 6.

[0023] See also Figure 1 , Figure 2 , Figure 5The moving block 12 and the drum shaft 1 are jointly provided with a positioning mechanism 13, and the positioning mechanism 13 includes a guide column 131, and the guide column 131 is fixedly connected inside the drum shaft 1, and the guide column 131 is slidably connected to the moving block 12. There are two guide columns 131, and the two guide columns 131 are symmetrically distributed on the drum shaft 1. Through the setting of the guide column 131, the moving block 12 can be guided. A clamping hole 132 is opened on the surface of the guide column 131, and a plurality of clamping holes 132 are provided. The plurality of clamping holes 132 are evenly distributed on the guide column 131. Through the setting of the clamping holes 132, it is convenient to cooperate with the clamping rod 135 for clamping and use. The interior of the moving block 12 is fixedly connected with a fixed disk 133, and a spring 2 134 is welded on the upper end of the fixed disk 133, and a clamping rod 135 is welded on the other end of the spring 2 134. The clamping rod 135 and the clamping hole 132 is a sliding connection, and the output shaft is driven by the motor 4 to rotate, so as to drive the threaded rod 11 to rotate. Under the threaded connection relationship, the moving block 12 can be pushed to move, thereby driving the sealing side drum 3 to move toward the direction of the forming intermediate drum 2, so that the sealing side drum 3 fits with the tread, thereby improving the sealing effect of the forming drum. In this process, when the moving block 12 slides along the surface of the guide column 131, the inner wall of the clamping hole 132 squeezes the clamping rod 135, thereby pushing the spring 2 134 to deform, and finally the clamping rod 135 is separated from the clamping hole 132. Under the action of force, the clamping rod 135 slides along the surface of the guide column 131. When the clamping rod 135 slides into the next clamping hole 132, the spring 2 134 recovers its deformation to push the clamping rod 135 to insert into the clamping hole 132, so as to accurately control the sealing side drum 3.

[0024] The specific implementation process of the utility model is as follows: when the sealing structure of the forming drum of the all-steel radial tire one-step forming machine needs to be used, the end plate 8 is pulled to move in the direction away from the drum shaft 1 to drive the limit rod 9 to move, the spring 10 is deformed, and then the bolt 6 is pushed through the mounting plate 5 to make the bolt 6 contact with the drum shaft 1, the bolt 6 is rotated to make the bolt 6 do threaded movement, the bolt 6 is installed, and then the mounting plate 5 is fixed, and the end plate 8 is loosened to make the spring 10 restore the deformation, so as to pull the limit rod 9 to insert into the limit ring groove 7, and the bolt 6 is inserted and limited to avoid the problem of vibration threading of the bolt 6;

[0025] The starting motor 4 drives the output shaft to rotate, thereby driving the threaded rod 11 to rotate. Under the threaded connection relationship, the moving block 12 can be pushed to move, thereby driving the sealing side drum 3 to move in the direction of the forming intermediate drum 2, so that the sealing side drum 3 fits with the tread, thereby improving the sealing effect of the forming drum. In this process, when the moving block 12 slides along the surface of the guide column 131, the inner wall of the clamping hole 132 squeezes the clamping rod 135, thereby pushing the spring 2 134 to deform, and finally the clamping rod 135 is separated from the clamping hole 132. Under the action of force, the clamping rod 135 slides along the surface of the guide column 131. When the clamping rod 135 slides into the next clamping hole 132, the spring 2 134 restores its deformation to push the clamping rod 135 into the clamping hole 132, thereby accurately controlling the sealing side drum 3.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a building drum of a one-step all-steel radial tire building machine, comprising a drum shaft (1), characterized in that: A forming intermediate drum (2) is arranged on the outer side of the middle of the drum shaft (1), and sealing side drums (3) are slidably sleeved on the outer side of the drum shaft (1) and on the left and right sides of the forming intermediate drum (2). The interior of the drum shaft (1) contacts with a motor (4), and the front and rear sides of the motor (4) are fixedly connected with mounting plates (5), each of the mounting plates (5) contacts with the drum shaft (1), and the interior of each of the mounting plates (5) is movably connected with a bolt (6), and the bolt (6) is connected to the drum shaft (1) by threading, and a limiting ring groove (7) is provided on the surface of the bolt (6). The surface of the drum shaft (1) The surface is in contact with an end plate (8), and a limiting rod (9) is fixedly connected to the surface of the end plate (8) close to the bolt (6). The limiting rod (9) is slidably connected to the drum shaft (1), and the limiting rod (9) is slidably connected to the limiting ring groove (7). A spring (10) is arranged on the outer side of the limiting rod (9). The output shaft of the motor (4) is fixedly connected to a threaded rod (11), and the threaded rod (11) is rotatably connected to the drum shaft (1). The outer side of the threaded rod (11) is connected to a moving block (12) through a thread, and a positioning mechanism (13) is arranged on the moving block (12) and the drum shaft (1).

2. The sealing structure of a forming drum of a one-step forming machine for an all-steel radial tire according to claim 1, characterized in that: One end of the spring one (10) is welded to the drum shaft (1), and the other end of the spring one (10) is welded to the end plate (8).

3. The sealing structure of a forming drum of a one-step forming machine for an all-steel radial tire according to claim 1, characterized in that: The moving block (12) is slidably connected to the drum shaft (1), and the moving block (12) is fixedly connected to the sealing side drum (3).

4. The sealing structure of a forming drum of a one-step forming machine for an all-steel radial tire according to claim 1, characterized in that: The positioning mechanism (13) comprises a guide column (131), the inside of the drum shaft (1) is fixedly connected to the guide column (131), the guide column (131) is slidably connected to the moving block (12), a clamping hole (132) is provided on the surface of the guide column (131), the inside of the moving block (12) is fixedly connected to a fixed plate (133), the upper end of the fixed plate (133) is welded with a spring 2 (134), the other end of the spring 2 (134) is welded with a clamping rod (135), and the clamping rod (135) is slidably connected to the clamping hole (132).

5. The sealing structure of the building drum of the all-steel radial tire one-step building machine according to claim 4, characterized in that: A plurality of the clamping holes (132) are provided, and the plurality of the clamping holes (132) are evenly distributed on the guide pillar (131).

6. The sealing structure of a building drum of a one-step building machine for an all-steel radial tire according to claim 4, characterized in that: Two guide pillars (131) are provided, and the two guide pillars (131) are symmetrically distributed on the drum shaft (1).

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