Pressing wheel for pressing light truck tire filling rubber

Abstract

The utility model relates to a pinch roller for pressing light truck tire filling rubber, which comprises a roller body and a roller shaft, the roller body is of a disc structure, one end of the roller shaft extends outwards along the radial direction to form a connecting plate, the connecting plate is detachably connected with the roller body, both the connecting plate and the roller body are of hollow structures, and the roller shaft is of a hollow structure. According to the utility model, the technical problem of high defective rate caused by overlarge weight of the pressing wheel in the process of pressing the tire blank filling rubber of the light truck in the prior art can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire molding, in particular to a pressing wheel used for light truck tire filling rubber pressing. Background Art

[0002] In the prior art, steel rollers are often used for pressing the filling rubber of the tire blank. The steel rollers have a large deadweight and are difficult to accelerate. Since the filling rubber of light truck tires is thinner and less stiff than that of other tires, the tire blank will rotate at a high speed of 480° / s during the pressing of the filling rubber of the tire blank. When the roller contacts the high-speed rotating filling rubber, the excessive weight of the roller will cause a large force when the roller is accelerated, and the reaction force of the roller on the filling rubber is also large, which can easily cause the filling rubber to wrinkle, thereby causing the tire blank to be discarded due to air pockets or causing bubbles to appear in the bead area of ​​the finished tire, resulting in a high scrap rate.

[0003] Based on this, the existing technology needs to be further developed. Utility Model Content

[0004] In view of various deficiencies in the prior art, a press wheel for light truck tire filling rubber lamination is proposed to solve the technical problem of high scrap rate caused by excessive press wheel weight during light truck tire blank filling rubber lamination in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pressing wheel for light truck tire filling rubber pressing comprises a wheel body and a wheel axle, wherein the wheel body is a disc structure, one end of the wheel axle extends radially outward to form a connecting plate, the connecting plate is detachably connected to the wheel body, the connecting plate and the wheel body are both arranged as hollow structures, and the wheel axle is arranged as a hollow structure.

[0007] The technical solution is further configured such that a stepped through hole is provided in the middle of the wheel body, and the connecting plate is detachably connected to the stepped through hole via a fastener.

[0008] The technical solution is further configured that the connection plate is provided with a plurality of spaced-apart weight-reducing holes along its circumference.

[0009] The technical solution is further configured such that the weight-reducing hole is a circular hole or an arc hole.

[0010] The technical solution is further configured such that a bearing connected to a radial tire building machine is provided inside the wheel axle.

[0011] The technical solution is further configured such that the minimum diameter of the stepped through hole is larger than the outer diameter of the axle, and the maximum diameter of the stepped through hole is not smaller than the diameter of the connecting plate.

[0012] The technical solution is further configured as follows: a plurality of first threaded holes are provided in the stepped through hole, a plurality of second threaded holes are provided on the connecting plate, the second threaded holes are arranged corresponding to the first threaded holes, the fasteners pass through the second threaded holes and the first threaded holes in sequence, and the ends of the fasteners are flush with the bottom surface of the wheel body.

[0013] The technical solution is further configured such that the wheel body is made of aluminum alloy, and the wheel axle and the connecting plate are made of carbon steel.

[0014] The beneficial effects of the utility model are:

[0015] The connecting plate and the wheel body are detachably connected, and can be adapted to light truck tires of different sizes by replacing wheels of different diameters. The connecting plate and the wheel body are arranged as a hollow structure, which can greatly reduce the weight of the pressing wheel and prevent the pressing wheel from exerting excessive reaction force on the filling rubber during the high-speed rotation of the tire blank, thereby preventing the filling rubber from wrinkling, preventing the formation of air pockets in the tire blank or bubbles in the bead of the finished tire, and reducing the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a pressing wheel used for light truck tire filling rubber pressing according to an embodiment of the utility model;

[0017] Figure 2 This is a top view of a pressing wheel used for light truck tire filling rubber pressing in an embodiment of the utility model;

[0018] Figure 3 yes Figure 2 Middle AA section view;

[0019] Figure 4 This is a schematic diagram of a wheel body according to an embodiment of the utility model;

[0020] Figure 5 It is a schematic diagram of the axle of an embodiment of the utility model.

[0021] In the accompanying drawings: 1, wheel body; 11, stepped through hole; 12, first threaded hole; 2, wheel axle; 21, connecting plate; 211, weight-reducing hole; 212, second threaded hole. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0023] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0024] According to an embodiment of the utility model, a pressing wheel for light truck tire filling rubber pressing is provided. Figures 1 to 5 , including a wheel body 1 and an axle 2, the wheel body 1 is a disc structure, one end of the axle 2 extends radially outward to form a connecting plate 21, the connecting plate 21 is detachably connected to the wheel body 1, the connecting plate 21 and the wheel body 1 are both set as hollow structures, and the axle 2 is set as a hollow structure.

[0025] It should be noted that the connecting plate 21 is detachably connected to the wheel body 1, and can be adapted to light truck tires of different sizes by replacing wheel bodies 1 of different diameters. The connecting plate 21 and the wheel body 1 are arranged as a hollow structure, which can greatly reduce the weight of the pressure wheel and prevent the pressure wheel from exerting excessive reaction force on the filling rubber during the high-speed rotation of the tire blank, thereby preventing the filling rubber from wrinkling, preventing the formation of air pockets in the tire blank or bubbles in the bead of the finished tire, and reducing the scrap rate.

[0026] In the press wheel for light truck tire filling rubber lamination of this embodiment, a stepped through hole 11 is opened in the middle of the wheel body 1, and the connecting plate 21 is detachably connected to the stepped through hole 11 by a fastener. The minimum diameter of the stepped through hole 11 is larger than the outer diameter of the wheel axle 2, and the maximum diameter of the stepped through hole 11 is not less than the diameter of the connecting plate 21.

[0027] It should be noted that the stepped through hole 11 includes a first through hole and a second through hole which are connected and have different apertures. The outer wall of the connecting plate 21 is fitted with the side wall of the second through hole, and the first threaded hole 12 is located on the bottom surface of the second through hole. The weight of the pressure wheel can be reduced to the greatest extent while ensuring the overall strength of the pressure wheel.

[0028] Preferably, the height of the second through hole is not greater than 1 / 2 of the height of the first through hole to ensure the strength of the wheel body 1.

[0029] In the pressure wheel used for light truck tire filling rubber pressing of the present embodiment, a plurality of spaced-apart weight-reducing holes 211 are opened on the connecting plate 21 along its circumference. Preferably, the weight-reducing holes 211 are circular holes or arc holes, and the plurality of weight-reducing holes 211 are evenly distributed to ensure the stability of the pressure wheel rotation, thereby making the filling rubber evenly stressed, and preventing tire bead bubbles from appearing in the finished tire due to uneven stress on the filling rubber.

[0030] In the pressing wheel for light truck tire filling rubber pressing of this embodiment, a bearing connected to a radial tire building machine is provided inside the wheel axle 2.

[0031] In the pressing wheel for light truck tire filling rubber pressing of this embodiment, a plurality of first threaded holes 12 are provided in the stepped through hole 11, and a plurality of second threaded holes 212 are provided on the connecting plate 21. The second threaded holes 212 are provided corresponding to the first threaded holes 12. The fasteners pass through the second threaded holes 212 and the first threaded holes 12 in sequence, and the ends of the fasteners are flush with the bottom surface of the wheel body 1 to prevent the ends of the fasteners from scratching the filling rubber. Preferably, the first threaded holes 12 can be provided as blind holes.

[0032] In the pressing wheel for light truck tire filling rubber pressing of this embodiment, the wheel body 1 is made of aluminum alloy, and the wheel axle 2 and the connecting plate 21 are made of carbon steel. Preferably, the wheel axle 2 and the connecting plate 21 are integrally formed.

[0033] It should be noted that carbon steel has good wear resistance and high strength. The wheel axle 2 made of carbon steel can effectively support the pressure wheel for high-speed rotation, and can withstand the wear of the wheel axle 2 caused by the bearing during high-speed rotation; the wheel body 1 is made of aluminum alloy, which is light in weight while ensuring sufficient strength, which can further reduce the weight of the pressure wheel and avoid the occurrence of wrinkling problems caused by the filling rubber.

[0034] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A pressing wheel for light truck tire filling rubber pressing, characterized in that: It includes a wheel body and a wheel axle, the wheel body is a disc structure, one end of the wheel axle extends radially outward to form a connecting plate, the connecting plate is detachably connected to the wheel body, the connecting plate and the wheel body are both configured as hollow structures, and the wheel axle is configured as a hollow structure.

2. The pressing wheel for light truck tire filling rubber pressing according to claim 1, characterized in that: A stepped through hole is provided in the middle of the wheel body, and the connecting plate is detachably connected to the stepped through hole via a fastener.

3. The pressing wheel for light truck tire filling rubber pressing according to claim 1, characterized in that: The connection plate is provided with a plurality of spaced-apart weight-reducing holes along its circumference.

4. The pressing wheel for light truck tire filling rubber pressing according to claim 3 is characterized in that: The weight-reducing hole is a circular hole or an arc hole.

5. The pressing wheel for light truck tire filling rubber pressing according to claim 2, characterized in that: A bearing connected to a radial tire building machine is arranged inside the wheel axle.

6. The pressing wheel for light truck tire filling rubber pressing according to claim 5, characterized in that: The minimum diameter of the stepped through hole is greater than the outer diameter of the axle, and the maximum diameter of the stepped through hole is not less than the diameter of the connecting plate.

7. The pressing wheel for light truck tire filling rubber pressing according to claim 6, characterized in that: A plurality of first threaded holes are arranged in the stepped through hole, and a plurality of second threaded holes are arranged on the connecting plate. The second threaded holes are arranged corresponding to the first threaded holes. The fasteners pass through the second threaded holes and the first threaded holes in sequence, and the ends of the fasteners are flush with the bottom surface of the wheel body.

8. The pressing wheel for light truck tire filling rubber pressing according to any one of claims 1 to 7, characterized in that: The wheel body is made of aluminum alloy, and the wheel axle and the connecting plate are made of carbon steel.

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