Exhaust device for rolling tread of forming drum

Abstract

The utility model discloses an exhaust device for a rolling tread of an assembly drum, which belongs to the field of tire production and processing and comprises a workbench, a conveying roller is rotatably connected between the left side wall and the right side wall of the workbench, and a plurality of uniformly distributed upright posts are fixedly connected to the lower end of the workbench. A trepanning assembly is installed between the workbench and the inner wall of the middle side of the stand column, two extrusion assemblies for tire tread exhaust are arranged on the upper side of the conveying roller, and a transmission assembly for driving the two extrusion assemblies to move relatively is installed at the upper end of the workbench, so that generation of crown bubbles between a tire belted layer and a tire tread can be effectively avoided; and the tire quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing and processing, and more specifically, to an exhaust device for rolling tire tread with a molding drum. Background Technology

[0002] Tires are circular, elastic rubber products that are mounted on various vehicles or machinery and roll on the ground. They are usually mounted on metal rims, supporting the vehicle body, buffering external impacts, making contact with the road surface, and ensuring the vehicle's driving performance. During the tire molding process, in order to effectively expel the air accumulated between the layers during tread bonding, a degassing process is often required during the material feeding and tread extrusion process.

[0003] In the existing technology, the material feeding method adopts large-roller coiling. After the three-composite tire tread exhaust line is coiled, the original tire tread exhaust line is squeezed and deformed at the shoulder of the tire tread, resulting in poor exhaust effect. During the molding process, the gas between the belt layer and the tire tread is not easy to be discharged, which makes the tire blank prone to the generation of crown bubbles. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an exhaust device for forming drum rolling tread, which can effectively avoid the generation of crown air bubbles between the tire belt layer and the tread, and improve the quality of the tire.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An exhaust device for forming drum rolling tire tread includes a worktable, a conveying roller rotatably connected between the left and right side walls of the worktable, a plurality of evenly distributed columns fixedly connected to the lower end of the worktable, an opening assembly installed between the middle inner walls of the worktable and the columns, two extrusion assemblies for tire tread exhaust provided on the upper side of the conveying roller, and a transmission assembly for driving the relative displacement of the two extrusion assemblies installed at the upper end of the worktable.

[0009] Furthermore, the opening assembly includes a support plate fixedly connected between the inner walls of the middle side of the workbench, the upper end of the support plate having multiple evenly distributed through holes, a cylinder installed between the inner walls of the two columns on the middle side, the upper end of the cylinder being movably connected to multiple evenly distributed telescopic ends, and the upper end of the telescopic ends being fixedly connected to a needle.

[0010] Furthermore, the transmission assembly includes a mounting box fixedly connected to the upper end of one side of the workbench. A slide groove is provided on one side of the mounting box. A bidirectional threaded rod is rotatably connected between the inner walls of the slide groove. Two symmetrically distributed threaded sleeves are fitted on the outer end of the bidirectional threaded rod. One end of the threaded sleeve is fixedly connected to the side end of the extrusion assembly. One end of the bidirectional threaded rod extends to the outside of the mounting box. A motor is installed on the upper end of one side of the workbench. The output end of the motor is fixedly connected to one end of the bidirectional threaded rod.

[0011] Furthermore, the extrusion assembly includes a mounting frame slidably connected to the upper end of the worktable. A second groove is provided on the side wall of the mounting frame. A transmission rod is rotatably connected between the upper and lower inner walls of the second groove. A threaded sleeve is fitted on the outer end of the transmission rod. A pressing roller is rotatably connected between the inner walls of the two threaded sleeves. A second motor is installed on the upper end of the mounting frame. The output end of the second motor is fixedly connected to one end of the transmission rod.

[0012] 3. Beneficial effects

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This solution involves placing a portion of the tire tread above the perforation assembly via a conveyor roller. Personnel then drive the perforation assembly to punch holes in the tread. Next, a pressing assembly moves the tread pressure roller downwards, further compressing the tread thickness. Finally, a transmission assembly moves the pressing assemblies on both sides of the tread towards each other, thus expelling air between the tread and the belt layer through the perforations. This effectively prevents the formation of air bubbles in the crown between the tire belt layer and the tread, thereby improving tire quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the opening component of this utility model;

[0017] Figure 3 This is a schematic diagram of the transmission component of this utility model;

[0018] Figure 4 This is an exploded structural diagram of the extrusion assembly of this utility model.

[0019] Explanation of the labels in the diagram:

[0020] 1. Workbench; 2. Conveyor rollers;

[0021] 3. Opening assembly; 31. Support plate; 32. Through hole; 33. Cylinder; 34. Telescopic end; 35. Needle;

[0022] 4. Columns;

[0023] 5. Transmission assembly; 51. Mounting box; 52. Slide groove one; 53. Double-ended threaded rod; 54. Threaded sleeve one; 55. Motor one;

[0024] 6. Extrusion assembly; 61. Mounting frame; 62. Second chute; 63. Transmission rod; 64. Second threaded sleeve; 65. Pressing roller; 66. Second motor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] Please see Figures 1-4An exhaust device for forming drum rolling tire tread includes a worktable 1, a conveying roller 2 rotatably connected between the left and right side walls of the worktable 1, a plurality of evenly distributed columns 4 fixedly connected to the lower end of the worktable 1, an opening assembly 3 installed between the middle inner walls of the worktable 1 and the columns 4, two extrusion assemblies 6 for tire tread exhaust provided on the upper side of the conveying roller 2, and a transmission assembly 5 for driving the relative displacement of the two extrusion assemblies 6 installed at the upper end of the worktable 1.

[0030] In this solution, to avoid the problem of excessive air bubbles between the tread and belt layer during tire tread forming, which leads to poor tire quality and shoulder defects, the tread is first conveyed by the conveying roller 2 to a position above the perforation assembly 3. Then, the operator drives the perforation assembly 3 to perforate the tread. Afterward, the extrusion assembly 6 is driven to move the tread pressure roller downward to further compress the tread thickness. Finally, the operator drives the transmission assembly 5 to move the extrusion assemblies 6, which have already compressed the tread on both sides, to move towards each other. This allows the air between the tread and belt layer to be expelled through the perforations, effectively preventing the formation of crown air bubbles between the tire belt layer and the tread, thus improving tire quality.

[0031] Please see Figures 1-2 The opening assembly 3 includes a support plate 31 fixedly connected between the inner walls of the middle side of the workbench 1. The upper end of the support plate 31 is provided with a plurality of evenly distributed through holes 32. A cylinder 33 is installed between the inner walls of the two columns 4 on the middle side. The upper end of the cylinder 33 is movably connected with a plurality of evenly distributed telescopic ends 34. The upper end of the telescopic ends 34 is fixedly connected with a needle 35.

[0032] During the use of this solution, when personnel are performing the venting and puncturing operation on the tire tread, the drive cylinder 33 causes the telescopic end 34 to move up and down, so that the puncturing needle 35 continuously enters and exits the through hole 32, thereby realizing the puncturing operation on the upper tire tread for subsequent venting.

[0033] Please see Figures 1-4 The transmission assembly 5 includes a mounting box 51 fixedly connected to the upper end of one side of the workbench 1. A slide groove 52 is provided on one side of the mounting box 51. A bidirectional threaded rod 53 is rotatably connected between the inner walls of the slide groove 52. Two symmetrically distributed threaded sleeves 54 are fitted on the outer end of the bidirectional threaded rod 53. One end of the threaded sleeve 54 is fixedly connected to the side end of the extrusion assembly 6. One end of the bidirectional threaded rod 53 extends to the outside of the mounting box 51. A motor 55 is installed on the upper end of one side of the workbench 1. The output end of the motor 55 is fixedly connected to one end of the bidirectional threaded rod 53.

[0034] More specifically: the extrusion assembly 6 includes a mounting frame 61 slidably connected to the upper end of the worktable 1. A second sliding groove 62 is provided on the side wall of the mounting frame 61. A transmission rod 63 is rotatably connected between the upper and lower inner walls of the second sliding groove 62. A threaded sleeve 64 is fitted on the outer end of the transmission rod 63. A pressing roller 65 is rotatably connected between the inner walls of the two threaded sleeves 64. A second motor 66 is installed on the upper end of the mounting frame 61. The output end of the second motor 66 is fixedly connected to one end of the transmission rod 63.

[0035] During the use of this solution, the operator first drives the second motor 66 to cause the transmission rod 63 to drive the second threaded sleeve 64 to move downward, so that the pressing roller 65 is located on the upper side of the conveying roller 2, and the gap between the two is just in line with the thickness of the tire tread being conveyed, ensuring that the tire tread is conveyed normally above the conveying roller 2 and its surface is smoothed.

[0036] After the tire tread is conveyed and moved down by the pressing roller 65 and the conveying roller 2 to the surface of the opening component 3 for punching, the operator drives the motor 66 again to cause the transmission rod 63 to rotate a second time until the threaded sleeve 64 slides to the bottom of the groove 62. At this time, the pressing roller 65 presses the tire tread.

[0037] Then, the personnel drive the motor 55 to make the bidirectional threaded rod 53 rotate. Since the bidirectional threaded rod 53 is equipped with threaded sleeves 54 on both sides, when the bidirectional threaded rod 53 rotates, the two threaded sleeves 54 are displaced in opposite directions, thereby linking the two extrusion components 6 to gradually approach the puncture position. As the tread is further compressed, the air between the tread and the belt layer is gradually discharged towards the puncture position, effectively avoiding the generation of crown air bubbles between the tire belt layer and the tread, thus achieving the purpose of improving tire quality.

[0038] Finally, the personnel drive motor 66 to move the threaded sleeve 64 upward, and the two mounting brackets 61 return to their initial positions, so that the air-removed tire tread is conveyed to the next process by the conveying roller 2.

[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An exhaust device for forming drum rolling tire tread, comprising a worktable (1), characterized in that: A conveying roller (2) is rotatably connected between the left and right side walls of the workbench (1). A plurality of evenly distributed columns (4) are fixedly connected to the lower end of the workbench (1). An opening assembly (3) is installed between the middle inner wall of the workbench (1) and the columns (4). Two extrusion assemblies (6) for tire tread degassing are provided on the upper side of the conveying roller (2). A transmission assembly (5) for driving the relative displacement of the two extrusion assemblies (6) is installed on the upper end of the workbench (1).

2. The exhaust device for forming drum rolling tire tread according to claim 1, characterized in that: The opening assembly (3) includes a support plate (31) fixedly connected between the inner walls of the middle side of the workbench (1). The upper end of the support plate (31) is provided with a plurality of evenly distributed through holes (32). A cylinder (33) is installed between the inner walls of the two columns (4) on the middle side. The upper end of the cylinder (33) is movably connected with a plurality of evenly distributed telescopic ends (34). The upper end of the telescopic end (34) is fixedly connected with a needle (35).

3. The exhaust device for forming drum rolling tire tread according to claim 1, characterized in that: The transmission assembly (5) includes a mounting box (51) fixedly connected to the upper end of one side of the workbench (1). A slide groove (52) is provided on one side of the mounting box (51). A bidirectional threaded rod (53) is rotatably connected between the inner walls of the slide groove (52). Two symmetrically distributed threaded sleeves (54) are fitted on the outer end of the bidirectional threaded rod (53). One end of the threaded sleeve (54) is fixedly connected to the side end of the extrusion assembly (6). One end of the bidirectional threaded rod (53) extends to the outside of the mounting box (51). A motor (55) is installed on the upper end of one side of the workbench (1). The output end of the motor (55) is fixedly connected to one end of the bidirectional threaded rod (53).

4. The exhaust device for forming drum rolling tire tread according to claim 1, characterized in that: The extrusion assembly (6) includes a mounting frame (61) slidably connected to the upper end of the workbench (1). A second sliding groove (62) is provided on the side wall of the mounting frame (61). A transmission rod (63) is rotatably connected between the upper and lower inner walls of the second sliding groove (62). A threaded sleeve (64) is fitted on the outer end of the transmission rod (63). A pressing roller (65) is rotatably connected between the inner walls of the two threaded sleeves (64). A second motor (66) is installed on the upper end of the mounting frame (61). The output end of the second motor (66) is fixedly connected to one end of the transmission rod (63).

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