Tire forming machine capable of automatically fusing joint lines

Abstract

The invention discloses a tire building machine capable of automatically fusing a joint line, which comprises a base, a movable seat is correspondingly arranged on one side of the fixed base, a fixed seat is correspondingly arranged on the other side of the base, one side of the fixed seat is correspondingly connected with an expansion and contraction drum air cylinder, and the other side of the fixed seat is correspondingly connected with a first air bag seat. The first air bag seat is correspondingly connected with the collapsible drum air cylinder through a bearing, the first yarn pushing seat is correspondingly arranged on the outer side of the first air bag seat, the first air bag seat is correspondingly connected with the forming cylinder, one side of the movable seat is correspondingly connected with the second air bag seat, and the second air bag seat is matched with the forming cylinder. The device is simple in structure, solves the problem that a tire blank is difficult to enter a mold due to a step mode of an inner liner joint, and ensures that gas does not enter a tire blank gap in a vulcanization process.

Description

Technical Field

[0001] The present invention relates to the technical field of tire molding machines, and particularly relates to a tire molding machine with an automatic fusion joint line. Background Art

[0002] Existing motorcycle and electric vehicle molding machines can only apply the materials of each layer of the tire during the molding operation, and then send them to the subsequent vulcanization process for vulcanization. However, after the airtight layer material is applied, the joint is a lap joint, with a stepped pattern. Such a joint is prone to allowing gas to enter from the joint during vulcanization, resulting in serious quality problems such as delamination of the tire. At the same time, the width of the airtight layer of existing tires is relatively narrow, almost the same as the width of the tire blank cylinder, resulting in gaps in the airtight layer, which is prone to allowing gas to enter the tire body, leading to serious quality problems of the tire. In addition, the currently formed tire blank is almost cylindrical, with a relatively high height, making it difficult to enter the mold. Therefore, there is a need to provide a tire molding machine with an automatic fusion joint line. Summary of the Invention

[0003] In order to overcome the defects in the prior art, a tire molding machine with an automatic fusion joint line is provided.

[0004] The present invention is achieved through the following solutions:

[0005] A tire molding machine with an automatic fusion joint line includes a base. On one side of the fixed base, a movable seat is correspondingly provided. On the other side of the base, a fixed seat is provided. One side of the fixed seat is correspondingly connected to a telescopic drum cylinder, and the other side of the fixed seat is correspondingly connected to a first air bag seat. The first air bag seat is correspondingly connected to the telescopic drum cylinder through a bearing. On the outside of the first air bag seat, a first yarn pushing seat is correspondingly provided. The first air bag seat is correspondingly connected to a molding cylinder. One side of the movable seat is correspondingly connected to a second air bag seat. The second air bag seat is matched with the molding cylinder. On the outside of the second air bag seat, a second yarn pushing seat is correspondingly provided. Below the molding cylinder, a pressing wheel mechanism is correspondingly provided. Above the fixed seat, a pressure gauge box is correspondingly provided. The pressure gauge box is correspondingly connected to the molding cylinder.

[0006] The movable seat can move back and forth along the base.

[0007] The bottom of the molding cylinder is correspondingly connected to a fixing frame, and the fixing frame is arranged above the pressing wheel mechanism.

[0008] The fixing frame is of a U-shaped structure, and both ends of the fixing frame are correspondingly connected to the base through fixing pins.

[0009] The molding cylinder is correspondingly electrically connected to a servo motor.

[0010] The forming cylinder includes a central bearing, one end of which matches the second airbag seat, the other end of which is correspondingly connected to the bearing of the first airbag seat, the central bearing is correspondingly connected to the forming cylinder body, and a heating mechanism is provided at one end of the forming cylinder body, and the heating mechanism is correspondingly electrically connected to the servo motor.

[0011] The beneficial effects of the present invention are:

[0012] 1. The tire forming machine with an automatic fusion joint line of the present invention is provided with a heating mechanism on the forming cylinder body, so that the joint can be heated and fused during tire forming, thereby solving the problem of joint step cracks.

[0013] 2. The tire forming machine with automatic fusion joint line of the present invention utilizes an expanding and contracting drum cylinder to allow the forming cylinder to expand again, thereby expanding the middle part of the formed tire blank, changing the tire blank from a cylindrical shape to a spherical shape, reducing the height of the tire blank, and facilitating the tire blank to enter the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a tire building machine with an automatic fusion joint line according to the present invention;

[0015] Figure 2 It is a structural schematic diagram of a forming cylinder in a tire forming machine of an automatic fusion joint line of the present invention;

[0016] In the figure: 1 is a fixed base, 2 is a movable base, 3 is a fixed base, 4 is an expansion and contraction drum cylinder, 5 is a first yarn pushing base, 6 is a first air bag base, 7 is a forming tube, 71 is a center bearing, 72 is a forming tube body, 73 is a heating mechanism, 8 is a second air bag base, 9 is a second yarn pushing base, 10 is a pressure wheel mechanism, 11 is a fixed frame, 12 is a fixed latch, 13 is a pressure gauge box, and 14 is a servo motor. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0018] like Figure 1As shown in the figure, a tire molding machine for automatically fusing joint wires includes a base 1. On one side of the fixed base 1, a movable seat 2 is correspondingly provided. On the other side of the base 1, a fixed seat 3 is correspondingly fixed. One side of the fixed seat 3 is correspondingly connected to a telescopic drum cylinder 4, and the other side of the fixed seat 3 is correspondingly connected to a first air bag seat 6. The first air bag seat 6 is correspondingly connected to the telescopic drum cylinder 4 through a bearing. On the outer side of the first air bag seat 6, a first yarn pushing seat 5 is correspondingly provided. The first air bag seat 6 is correspondingly connected to a forming cylinder 7. One side of the movable seat 2 is correspondingly connected to a second air bag seat 8. The second air bag seat 8 is matched with the forming cylinder 7. On the outer side of the second air bag seat 8, a second yarn pushing seat 9 is correspondingly provided. Below the forming cylinder 7, a pressing wheel mechanism 10 is correspondingly provided. Above the fixed seat 3, a pressure gauge box 13 is correspondingly provided. The pressure gauge box 13 is correspondingly connected to the forming cylinder 7. The present invention has a simple structure, solves the problems of the airtight layer joint step mode and the difficulty of the green tire entering the mold, and realizes that gas will not enter the gaps of the green tire during the vulcanization process.

[0019] In the present invention, the width of the airtight layer of the green tire is widened. During tire molding, it is ensured that both sides of the airtight layer can be turned over along the steel wire. Then, the subsequent cheap yarn directly presses the airtight layer, so that there is no gap at the end of the airtight layer, preventing gas from entering the interior of the tire carcass during vulcanization and causing defective tires.

[0020] The movable seat 2 can move back and forth along the base 1. It is convenient for the movable seat 2 to move to the right to support and connect the second air bag seat 8 with the forming cylinder 7.

[0021] The bottom of the forming cylinder 7 is correspondingly connected to a fixed frame 11. The fixed frame 11 is arranged above the pressing wheel mechanism 10. The fixed frame 11 is of a U-shaped structure, and both ends of the fixed frame 11 are correspondingly connected to the base 1 through fixed pins 12. It is convenient to fixedly connect the forming cylinder 7 with the base 1, ensure the overall connection strength, and guarantee normal operation.

[0022] The forming cylinder 7 is correspondingly electrically connected to a servo motor 14. In the present invention, an ordinary frequency conversion motor is changed to a servo motor 14, so that the heating mechanism 73 can accurately position at the airtight layer joint step.

[0023] Such as Figure 2As shown, the forming cylinder 7 includes a central bearing 71, one end of the central bearing 71 matches the second airbag seat 8, the other end of the central bearing 71 is correspondingly connected to the bearing of the first airbag seat 6, the central bearing 71 is correspondingly connected to the forming cylinder body 72, and one end of the forming cylinder body 72 is provided with a heating mechanism 73, and the heating mechanism 73 is correspondingly electrically connected to the servo motor 14. A tire forming machine of the present invention, which automatically fuses the joint line, is provided with a heating mechanism 73 on the forming cylinder body 72, so that the joint can be heated and fused during tire forming, thereby solving the problem of joint step cracks. In the present invention, the heating mechanism 73 includes a high-power heating block and a heat insulation board, the high-power heating block is correspondingly connected to the airtight layer of the tire blank, and the heat insulation board is correspondingly connected to the forming cylinder body 72. In order to increase the heat insulation effect, the high-power heating block to be heated is isolated from the heat insulation board on one side by 0.25mm to prevent large-area heat dissipation and cause insufficient heating power.

[0024] In a specific embodiment, the steel wire is put into the forming cylinder, the expansion and contraction drum cylinder 4 expands the forming cylinder 7 to tighten the steel wire, the movable seat 2 can move to the right along the base 1 to connect the second air bag seat 8 with the forming cylinder 7, and the airtight layer and the twill are wound one by one along the steel wire. After the first yarn pusher seat 5 and the second yarn pusher seat 9 are pasted with the steel wire to the tire blank with the airtight layer and the twill, the first air bag seat 6 and the second air bag seat 8 inflate the tire blank, the first yarn pusher seat 5 and the second yarn pusher seat 9 roll up the twill to wrap the steel wire again, and then the tire blank is wound with tread rubber, the pressure wheel mechanism 10 pressure wheel increases pressure to press the twill and the surface rubber, and the servo motor 14 starts the heating mechanism 73 of the forming cylinder 7 tile to directly heat the airtight layer joint line, so that the airtight layer joint is integrated under heating. After the tire blank is completed, the expansion and contraction drum cylinder 4 allows the forming cylinder 7 to expand again, and the middle part of the formed tire blank is stretched open, so that the tire blank changes from a cylindrical shape to a spherical shape, and the height of the tire blank is reduced. Finally, the expansion and contraction cylinder 4 works to shrink the forming tube 7, and finally the green tire is taken out to complete the production of the tire embryo.

[0025] The specific structure, working principle and working process of the expansion and contraction cylinder 4 and the servo motor 14 in the present invention are common knowledge and will not be described in detail here.

[0026] Although the technical solutions of the present invention have been described and listed in detail, it should be understood that it is obvious to those skilled in the art to make modifications to the above embodiments or adopt equivalent alternatives. These modifications or improvements made without departing from the spirit of the present invention are within the scope of protection required by the present invention.

Claims

1. A tire building machine for automatically fusing joint wires, comprising a base (1), characterized in that: On one side of the fixed base (1), a movable seat (2) is correspondingly provided. On the other side of the base (1), a fixed seat (3) is provided. One side of the fixed seat (3) is correspondingly connected to a telescopic drum cylinder (4). The other side of the fixed seat (3) is correspondingly connected to a first air bag seat (6). The first air bag seat (6) is correspondingly connected to the telescopic drum cylinder (4) through a bearing. On the outside of the first air bag seat (6), a first yarn pushing seat (5) is correspondingly provided. The first air bag seat (6) is correspondingly connected to a forming cylinder (7). One side of the movable seat (2) is correspondingly connected to a second air bag seat (8). The second air bag seat (8) is matched with the forming cylinder (7). On the outside of the second air bag seat (8), a second yarn pushing seat (9) is correspondingly provided. Below the forming cylinder (7), a pressure wheel mechanism (10) is correspondingly provided. Above the fixed seat (3), a pressure gauge box (13) is correspondingly provided. The pressure gauge box (13) is correspondingly connected to the forming cylinder (7).

2. The tire forming machine for automatically fusing joint wires according to claim 1, characterized in that: The movable seat (2) can move back and forth along the base (1).

3. The tire forming machine for automatically fusing joint wires according to claim 1, wherein: The bottom of the forming cylinder (7) is correspondingly connected to a fixed frame (11). The fixed frame (11) is arranged above the pressure wheel mechanism (10).

4. The tire forming machine for automatically fusing joint wires according to claim 3, characterized in that: The fixed frame (11) is of a U-shaped structure. The two ends of the fixed frame (11) are correspondingly connected to the base (1) through fixed pins (12).

5. The tire molding machine for automatically fusing joint wires according to claim 1, wherein: The forming cylinder (7) is correspondingly electrically connected to a servo motor (14).

6. The tire forming machine for automatically fusing joint wires according to claim 1, wherein: The forming cylinder (7) includes a central bearing (71). One end of the central bearing (71) is matched with the second air bag seat (8). The other end of the central bearing (71) is correspondingly connected to the bearing of the first air bag seat (6). The central bearing (71) is correspondingly connected to a forming cylinder body (72). One end of the forming cylinder body (72) is provided with a heating mechanism (73). The heating mechanism (73) is correspondingly electrically connected to the servo motor (14).

Images