Tire press mechanism

Abstract

The utility model discloses a kind of tire pressure roller mechanism, comprising: pedestal;Support assembly is installed on pedestal, and in preset angle range, support assembly can be rotated around the top of pedestal and move;Pressure roller assembly is installed on support assembly, including at least a pair of mutually parallelly arranged pressure roller and matched support shaft, pressure roller is installed on support shaft, and pressure roller can be rotated and pressed together motion around support shaft, and preset interval is arranged between adjacent pressure roller;Pressure roller is provided with the arc-shaped pressure surface of two end protrusions, middle concave along the axial direction of support shaft, and pressure tooth is arranged on arc-shaped pressure surface.The arc-shaped pressure surface provided in the utility model can increase the pressing area, ensure that the contact pressure area of arc-shaped pressure surface is uniformly stressed, and avoid the appearance of leakage pressure area;Pressure tooth is arranged on arc-shaped pressure surface, and the design of pressure tooth increases the pressure intensity of material, ensures that the joint of the to-be-pressed part is pressed tightly, and improves the pressing quality.

Description

Technical Field

[0001] This utility model relates to the field of tire processing technology, and in particular to a tire pressure roller mechanism. Background Technology

[0002] During tire manufacturing, various rubber component joints require rolling processing by a rolling mechanism. The key elements of rolling processing include pressure and pressing width. Pressure ensures that the joint in the rolled area is compacted, while the pressing width ensures that the cut surfaces of the components are pressed together. Only when both are achieved can cracking of the tire blank component joints be avoided, reducing the occurrence of product defects.

[0003] During the manufacturing process, if the composite components at the tire sidewall are not pressed tightly, cracks may occur at the joint of the inner liner during the tire blank shaping process. Because the tire carcass and inner liner expand together during tire blank shaping, the binding force on the tire carcass cords in the cracked area is insufficient, resulting in a lower cord density at the joint compared to the surrounding area. (See attached image.) Figure 1 As shown, in severe cases, thin-line defects may occur, affecting the quality of the finished product. Specifically, during the tire blank shaping process, thin-line defects can lead to reduced tire uniformity, decreased tire durability and reliability, increased risk of localized tire damage, and reduced overall tire structural strength. Especially at stress concentration points, this can potentially cause tire blowouts, posing a direct threat to driving safety.

[0004] In view of this, the present invention proposes a tire pressure roller mechanism. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this invention provides a tire pressure roller mechanism. The pressure roller mechanism features a double pressure roller structure, with an arc-shaped pressing surface on the surface of each roller to increase the pressing area. It also includes pressing teeth that increase the pressure on the joint material and ensure a tight joint, thereby making the tire rubber joint tightly pressed and improving the pressing effect.

[0006] The specific technical solution provided by this utility model is as follows:

[0007] A tire pressure roller mechanism, comprising:

[0008] Base;

[0009] The bracket assembly is mounted on the base and can rotate around the top of the base within a preset angle range;

[0010] The pressure roller assembly, mounted on the support assembly, includes at least one pair of pressure rollers arranged parallel to each other and a matching support shaft. The pressure rollers are mounted on the support shaft and can rotate and press around the support shaft. A preset distance is provided between adjacent pressure rollers. The pressure rollers are provided with an arc-shaped pressing surface with convex ends and concave middle along the axial direction of the support shaft, and pressing teeth are provided on the arc-shaped pressing surface.

[0011] Furthermore, the base includes a base plate and side frame plates, with the side frame plates being detachably installed on the base plate; there are two side frame plates, both of which are perpendicular to the base plate, and a preset distance is provided between the side frame plates.

[0012] Furthermore, the base plate is a plate-like structure with uniform thickness, and the base plate as a whole can be any one of cuboid, cube, cylinder, or polygon.

[0013] Furthermore, the support assembly includes a left support and a right support, which are respectively installed on the outer sides of the two side panels and are rotatably connected to the side panels via a pivot.

[0014] Furthermore, the radius of the arc-shaped pressing surface of the pressure roller is set within the range of 190~300mm.

[0015] Furthermore, the pressing teeth include a number of protrusions disposed on the arc-shaped pressing surface, and the protrusions are evenly distributed.

[0016] Furthermore, the protrusion extends a predetermined height along the radial direction of the pressure roller, and the cross-section of the protrusion in the radial direction of the pressure roller is an isosceles trapezoid shape.

[0017] Furthermore, the pressing teeth are arranged in neat rows, and the pressing teeth in adjacent rows are staggered.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] This utility model features a double pressure roller assembly structure for pressing the workpiece. The pressure rollers have an arc-shaped pressing surface with convex ends and a concave middle along the axial direction of the support shaft. The arc-shaped pressing surface increases the pressing area and ensures that the area pressed by the arc-shaped pressing surface is subjected to uniform force, avoiding any areas of missed pressing. The arc-shaped pressing surface is provided with pressing teeth. The design of the pressing teeth increases the pressure on the material, ensuring that the joints of the workpiece are pressed tightly, thus improving the pressing effect and pressing quality.

[0020] The design of the tire pressure roller mechanism in this application can effectively improve the pressing quality of various types of rubber component joints in tires, ensure the binding force of the tire carcass cords in the joint area, avoid the occurrence of sparse cord defective products, and after using the tire pressure roller mechanism in this application, the sparse cord defect rate of the tire inner liner joint is reduced by 95%, thereby improving the product qualification rate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram illustrating the defective product with thin lines that occurs when the pressing effect is poor in the background art of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the support assembly and the pressure roller assembly in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the pressure roller in this utility model;

[0025] Figure 5 This is a schematic diagram of the arc-shaped pressing surface of the pressure roller in this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the pressure engagement tooth in this utility model.

[0027] Marked in the image:

[0028] 1. Base; 11. Base plate; 12. Side frame plate; 2. Support assembly; 21. Left support; 22. Right support; 23. Rotating shaft; 3. Pressure roller assembly; 31. Pressure roller; 311. Arc-shaped pressing surface; 312. Pressing teeth; 32. Support shaft. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] As attached Figure 2-6 As shown, a tire pressure roller mechanism includes:

[0033] Base 1;

[0034] The bracket assembly 2 is installed on the base 1, and within a preset angle range, the bracket assembly 2 can rotate around the top of the base 1;

[0035] The pressure roller assembly 3 is mounted on the bracket assembly 2 and includes at least one pair of pressure rollers 31 arranged parallel to each other and a matching support shaft 32. The pressure rollers 31 are mounted on the support shaft 32 and can rotate and press around the support shaft 32. A preset distance is provided between adjacent pressure rollers 31. The pressure rollers 31 are provided with an arc-shaped pressing surface 311 with convex ends and concave middle along the axial direction of the support shaft 32, and pressing teeth 312 are provided on the arc-shaped pressing surface 311.

[0036] Obviously, the tire pressure roller 31 mechanism proposed in this application, by setting up a base 1, a support assembly 2 and a pressure roller assembly 3, can effectively press round or arc-shaped objects such as tires. The pressure roller 31 is provided with an arc-shaped pressure surface 311 with convex ends and concave middle along the axial direction of the support shaft 32. The arc-shaped pressure surface 311 can increase the pressing area and ensure that the area pressed by the arc-shaped pressure surface 311 is uniformly stressed, avoiding the occurrence of areas with missed pressure. The arc-shaped pressure surface 311 is provided with pressing teeth 312. The design of the pressing teeth 312 increases the pressure on the material and ensures that the joint of the part to be pressed is pressed tightly.

[0037] In some embodiments, the base 1 includes a base plate 11 and side frame plates 12, with the side frame plates 12 detachably mounted on the base plate 11. Two side frame plates 12 are provided, both perpendicular to the base plate 11, and a predetermined distance is provided between them. The detachable design between the side frame plates 12 and the base plate 11 facilitates the maintenance and transportation of the device. Simultaneously, the perpendicularity of the side frame plates 12 to the base plate 11 provides stable foundation support for the operation of the entire device, ensuring the safety and stability of the device during operation.

[0038] Furthermore, the base plate 11 and the side frame plate 12 can be connected by fasteners, such as bolts, screws, clips, and other common mounting fasteners. Alternatively, the base plate 11 and the side frame plate 12 can also be manufactured by integral molding, and those skilled in the art can make specific design choices according to actual needs.

[0039] In some embodiments, the base plate 11 is a plate-like structure with uniform thickness, and the base plate 11 as a whole is any one of a cuboid, cube, cylinder, or polygon. In practical applications, the most suitable shape is selected according to the usage scenario, thereby optimizing space utilization and improving the stability of device operation.

[0040] For example, see attached Figure 2As shown, the base plate 11 is generally rectangular in shape, with a rectangular cross-section when viewed from above. The side frame plate 12 is generally triangular in shape, with a triangular cross-section when viewed from the side. This structural design can maximize the safety and stability of the tire pressure roller 31 mechanism during operation.

[0041] like Figure 3 As shown, the support assembly 2 includes a left support 21 and a right support 22. The left support 21 and the right support 22 are respectively installed on the outer side of the two side frame plates 12, and the left support 21 and the right support 22 are rotatably connected to the side frame plates 12 through a rotating shaft 23.

[0042] It should be noted that the two side frame plates 12 include a left frame plate and a right frame plate, wherein the left bracket 21 is installed on the outside of the left frame plate and the right bracket 22 is installed on the outside of the right frame plate. The left frame plate, the right frame plate, the left bracket 21, and the right bracket 22 are all provided with corresponding pivot mounting holes. The pivot 23 here can be two pivots respectively located at the pivot mounting holes of the left bracket 21 and the right bracket 22. Alternatively, the pivot 23 can also be a single shaft connecting the pivot mounting holes at both ends of the left bracket 21 and the right bracket 22, with one end of the pivot 23 installed in the pivot mounting hole of the left frame plate and the left bracket 21, and the other end installed in the pivot mounting hole of the right frame plate and the right bracket 22, allowing the bracket assembly 2 to rotate around the pivot 23 within a preset range.

[0043] As attached Figure 4-5 As shown, the roller surface of the pressure roller 31 is an arc-shaped pressure surface 311. The arc-shaped pressure surface 311 can ensure an increase in the pressing area. The radius of the arc-shaped pressure surface 311 of the pressure roller 31 is set in the range of 190~300mm.

[0044] For example, in the paired pressure rollers 31, the radius of the arc-shaped pressure surface 311 of one pressure roller 31 is set to 192mm, and the radius of the arc-shaped pressure surface 311 of the other pressure roller 31 is set to 292mm. When the pressure rollers 31 with arc-shaped pressure surface radii of 192mm and 292mm are matched, during use, the pressure roller 31 with a radius of 192mm first presses the two ends of the workpiece to be pressed, while the pressure roller 31 with a radius of 292mm is responsible for pressing the middle area where pressure was missed.

[0045] Furthermore, the diameter of the pressure roller 31 is set to 60mm.

[0046] In some implementations, as shown in the appendix Figure 4 and Figure 6 As shown, the pressing teeth 312 include a number of protrusions disposed on the arc-shaped pressing surface 311, and the protrusions are evenly distributed. The pressing teeth 312 evenly arranged on the arc-shaped pressing surface 311 increase the friction, which helps to better fix the position of the workpiece to be processed, reduce the possible slippage during processing, and further improve the processing accuracy.

[0047] Furthermore, the protrusion extends a predetermined height along the radial direction of the pressure roller 31, the protrusion is in the shape of a quadrangular frustum, and the cross section of the protrusion in the radial direction of the pressure roller 31 is in the shape of an isosceles trapezoid.

[0048] Specifically, the isosceles trapezoidal shape of the protruding cross section includes: the side length of the end near the part to be pressed is smaller than the side length of the end far from the part to be pressed. This structural design reduces the contact area under the same force, increases the pressure of the pressing teeth 312 near the end face of the part to be pressed, thereby ensuring that the part to be pressed is pressed tightly.

[0049] As attached Figure 6 As shown, the pressing teeth 312 on the roller surface of the pressure roller 31 are arranged in neat rows, and the pressing teeth 312 in adjacent rows are staggered. Specifically, the position of one row of pressing teeth 312 corresponds to the tooth groove between two adjacent rows of pressing teeth 312. This arrangement can improve the pressing effect and ensure that the area to be pressed is pressed evenly.

[0050] In some embodiments, the tire pressure roller 31 mechanism further includes a transmission assembly (not shown in the figure), which includes a cylinder, a servo motor, and a guide rail. The cylinder is connected to the base 1, and under the drive of the cylinder, the pressure roller assembly 3, the support assembly 2, and the base 1 can move up and down as a whole. The servo motor is connected to the base 1 of the pressure roller assembly 3, and the servo motor can drive the pressure roller assembly 3 to move laterally along a preset guide rail.

[0051] The working process of this utility model is as follows:

[0052] Before movement, the cylinder operates, and the pressure roller assembly 3, the support assembly 2, and its base 1 extend obliquely upward, pushing the pressure roller 31 to the joint position with the part to be pressed (the cylindrical machine head surface with a tire sidewall or inner liner composite material attached to it). The pressure roller assembly 3 and the support assembly 2 adjust the rotation of the base 1 by the rotating shaft 23 to a preset angle (a certain angle clockwise rotation here), so that the arc-shaped pressing surface 311 of the pressure roller 31 abuts against the surface of the part to be pressed. Under the drive of the servo motor, the base 1, the support assembly 2, and the pressure roller assembly 3 move laterally along the preset guide rail (the direction where the part to be pressed is located) as a moving whole. The two pressure rollers 31 rotate and press around their respective support shafts 32 while moving as a whole, thereby realizing the roller pressing process of the part to be pressed.

[0053] It should be noted that, given that the transmission components consisting of cylinders, guide rails, and servo motors are common and general-purpose equipment used in this technical field, no technical improvements or innovations have been made in this application. Based on the above description of the transmission components, it is sufficient to understand how they assist the movement and use of the pressure roller assembly 3. This application will not elaborate on its specific structure.

[0054] Compared with the prior art, the above-mentioned embodiments proposed in this utility model have the following beneficial technical effects:

[0055] (1) This utility model is provided with a double pressure roller 31 combination structure to press the parts to be pressed. The pressure roller 31 is provided with an arc-shaped pressure surface 311 with convex ends and concave middle along the axial direction of the support shaft 32. The arc-shaped pressure surface 311 can increase the pressing area and ensure that the area pressed by the arc-shaped pressure surface 311 is uniformly stressed, avoiding the occurrence of areas with missed pressure. The arc-shaped pressure surface 311 is provided with pressing teeth 312. The design of the pressing teeth 312 increases the pressure on the material, ensuring that the joint of the parts to be pressed is pressed tightly, improving the pressing effect and quality.

[0056] (2) The design of the tire pressure roller 31 mechanism in this application can effectively improve the pressing quality of various types of rubber component joints of the tire, ensure the binding force of the tire carcass cords in the joint area, avoid the occurrence of sparse cord defective products, and after using the tire pressure roller 31 mechanism in this application, the sparse cord defect rate of the tire inner liner joint is reduced by 95%, which improves the product qualification rate.

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A tire pressure roller mechanism, characterized in that, include: Base; A support assembly is mounted on the base, and within a preset angle range, the support assembly can rotate around the top of the base; The pressure roller assembly, mounted on the support assembly, includes at least one pair of pressure rollers arranged parallel to each other and a matching support shaft. The pressure rollers are mounted on the support shaft and can rotate and press around the support shaft. A preset distance is provided between adjacent pressure rollers. The pressure rollers are provided with an arc-shaped pressing surface with convex ends and concave middle along the axial direction of the support shaft, and pressing teeth are provided on the arc-shaped pressing surface.

2. The tire pressure roller mechanism according to claim 1, characterized in that, The base includes a base plate and side frame plates, and the side frame plates are detachably installed on the base plate; there are two side frame plates, both of which are perpendicular to the base plate, and there is a preset distance between the side frame plates.

3. The tire pressure roller mechanism according to claim 2, characterized in that, The base plate is a plate-shaped structure with uniform thickness, and the base plate as a whole is any one of cuboid, cube, cylinder, and polygon.

4. A tire pressure roller mechanism according to claim 2, characterized in that, The support assembly includes a left support and a right support, which are respectively installed on the outer sides of the two side frame plates, and the left support and the right support are rotatably connected to the side frame plates via a pivot.

5. A tire pressure roller mechanism according to any one of claims 1-4, characterized in that, The radius of the arc-shaped pressing surface of the pressure roller is set in the range of 190~300mm.

6. A tire pressure roller mechanism according to claim 5, characterized in that, The pressing teeth include a plurality of protrusions disposed on the arc-shaped pressing surface, and the protrusions are evenly distributed.

7. A tire pressure roller mechanism according to claim 6, characterized in that, The protrusion extends a predetermined height along the radial direction of the pressure roller, and the cross-section of the protrusion in the radial direction of the pressure roller is an isosceles trapezoid shape.

8. A tire pressure roller mechanism according to claim 6, characterized in that, The pressing teeth are arranged in neat rows, and the pressing teeth in adjacent rows are staggered.

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