Full-automatic tire coning force repairing machine

Abstract

The full-automatic tire coning force repairing machine belongs to the field of tire manufacturing. The special equipment for implementing the coning force repairing of unqualified new tires, the out-of-roundness repairing, and the fixed-depth grinding for obtaining test data in the new tire test link is proposed, so that the accurate coning force repairing, performance testing, and data support for subsequent structure optimization can be realized according to the test scheme requirements, and the design purpose of filling the industry blank is achieved. The main frame is provided with at least one group of slide table assemblies at the bottom, the main grinding assembly is connected to the slide table assembly in a sliding manner, the sidewall grinding device and the laser scanning device are installed at the top of the main frame, the left and right rim assemblies are respectively sleeved with the driving mechanisms on both sides in the main frame, the rotating driving assembly for driving the left or right rim assembly to rotate in the circumferential direction, the clamping device for clamping the tire to be ground, and the tire lifting device are arranged on the side of the main frame.

Description

Technical Field

[0001] This utility model relates to a novel tire grinding machine, belonging to the field of tire manufacturing. Background Technology

[0002] Currently, factory quality control and testing are core aspects of tire manufacturing to ensure product performance and market competitiveness. Existing technologies still face several technical bottlenecks and industry pain points in the handling and testing / re-grinding of substandard new tires. For example, cone force parameters and tire out-of-roundness are key indicators affecting driving safety and ride comfort. New tires that fail the cone force test are usually scrapped directly or downgraded after simple repairs, resulting in significant waste of raw materials such as rubber and cord, and increasing production costs and environmental impact for companies.

[0003] The reasons for this are twofold. Firstly, there's a lack of precise, targeted repair techniques. Most new tires with abnormal conical force or excessive out-of-roundness cannot be restored to acceptable standards and are therefore scrapped. Existing repair techniques are inefficient and inconsistent in their effectiveness: a few companies attempt to use traditional manual grinding equipment, but this type of equipment lacks quantitative control capabilities. Specifically, conical force repair relies on manual experience and cannot precisely adjust the radial force distribution of the tire; out-of-roundness repair struggles to ensure consistent thickness at all circumferential points on the tread, resulting in tires still exhibiting issues such as misalignment and excessive rolling noise after repair. These tires fail to meet the performance standards of brand-new, qualified tires, ultimately leading to downgrading or scrapping and reducing the product's added value.

[0004] On the other hand, the accuracy of existing technology for testing and grinding is insufficient. In the testing phase before the development or mass production of new tires, it is impossible to obtain performance data (such as wear resistance, wet grip, rolling resistance, etc.) under specific conditions through fixed-depth grinding and contour grinding, thus failing to meet the accuracy requirements of testing.

[0005] In addition, existing technologies lack an integrated solution to the collaborative needs between "precise repair of substandard new tires" and "precise grinding for testing," resulting in problems such as resource waste, high costs, low efficiency, and unreliable data.

[0006] Therefore, developing a solution that can cover the above scenarios has become a pressing technical challenge in the existing tire manufacturing industry. In view of this, this application is hereby submitted. Summary of the Invention

[0007] The fully automatic tire conicity repair machine proposed in this application aims to solve the problems existing in the prior art by providing specialized equipment for conicity repair and out-of-roundness repair of unqualified new tires in the tire production process, as well as for fixed-depth grinding to obtain test data in the new tire testing process. This allows for precise conicity repair and performance testing according to the test plan requirements, and provides data support for subsequent structural optimization and fills industry gaps.

[0008] The fully automatic tire cone repair machine includes a main frame, characterized in that: at least one set of slide table assemblies is provided at the bottom of the main frame, a main grinding assembly is slidably connected to the slide table assemblies, a tire sidewall grinding device and a laser scanning device are installed at the top of the main frame, a left rim assembly and a right rim assembly are respectively fitted inside the main frame through drive mechanisms on both sides, a rotary drive assembly for driving the left rim assembly or the right rim assembly to rotate circumferentially, a clamping device for driving the left rim assembly and the right rim assembly to reciprocate axially to clamp the tire to be ground, and a tire lifting device are provided on the side of the main frame, and the tire to be ground is installed between the left rim assembly and the right rim assembly.

[0009] The slide assembly includes a lower slide assembly slidably connected to the bottom of the main frame, an upper slide assembly slidably connected to the lower slide assembly, and a main grinding assembly slidably connected to the upper slide assembly.

[0010] The upper slide assembly includes a servo rotary assembly, an upper slide support assembly rotatably connected to the servo rotary assembly in a circumferential direction, a main grinding assembly fixedly connected to the upper slide support assembly, and the servo rotary assembly slidably connected to the lower slide assembly via a slider and a guide rail assembly. The upper slide support assembly carries the main grinding assembly and can swing relative to the lower slide assembly. A servo electric cylinder is provided on the lower slide assembly, and the output end of the servo electric cylinder is connected to the servo rotary assembly to control the main grinding assembly to move back and forth in a linear direction for feeding.

[0011] The laser scanning device includes a scanning servo assembly and a scanning mounting base fixed to the top of the main frame. The laser scanner is mounted on the laser mounting base, which is slidably connected to a guide rail on the scanning mounting base via a slider. The output end of the scanning servo assembly is dual-drive connected to the laser mounting base.

[0012] A grinding head cooling device is installed on top of the main grinding assembly.

[0013] The tire lifting device is mounted on a column on one side of the main frame and includes a lifting cylinder mounted on the column of the main frame. The output end of the lifting cylinder is hinged to one end of a hinged cantilever, and the other end of the hinged cantilever is hinged to a tire lifting seat for carrying the tire to be ground. At least one set of lifting operation handles is provided on the tire lifting seat.

[0014] The clamping device is installed on the side column of the main frame and includes a cylinder clamping assembly and a limit cylinder assembly. The cylinder clamping assembly is driven to connect to the left wheel rim assembly or the right wheel rim assembly to achieve horizontal movement along the cylinder extension and retraction direction. At the same time, the left servo clamping assembly is driven to connect to the left wheel rim assembly, and the right servo clamping assembly is driven to connect to the right wheel rim assembly, so as to achieve horizontal movement to clamp or release the tire.

[0015] In summary, the fully automatic tire cone force repair machine proposed in this application has the following advantages and beneficial effects: 1. This application effectively addresses the testing challenge of the core performance indicator of conic force repair, significantly improving repair accuracy and consistency, and ensuring tire performance compliance. Repair accuracy overcomes the limitations of manual methods; the equipment is equipped with high-precision sensors and an automatic calibration system to ensure that the conic force parameters of the repaired tire meet factory standards.

[0016] 2. This application can standardize the repair process through standardized procedures. Regardless of the difference in the operator's technical level, the repair results of the same batch of substandard tires can be consistent, avoiding the problem of "different results for the same tire" in traditional manual repair and ensuring the test performance of the repaired tires.

[0017] 3. This application is highly economical, can reduce cost losses and increase corporate profits. It addresses the problem of "abnormal cone force leading to scrapping" in traditional technologies, enabling tires that would otherwise be scrapped to meet the qualification standards again, significantly reducing the waste of raw materials such as rubber and cord, and helping companies reduce huge raw material cost losses every year.

[0018] 4. This application simplifies the operation process, improves safety and ease of use. The equipment is equipped with a visual operation interface, and operators can master the operation process after simple training, solving the dilemma of "difficulty in recruiting skilled repair workers" for enterprises.

[0019] 5. This application can effectively reduce manual intervention, improve safety, and automate the entire grinding process without requiring manual hand tools for close operation, thus avoiding safety hazards such as "tool scratches" and "rubber debris inhalation" that may occur in traditional manual grinding, and reducing the incidence of workshop safety accidents.

[0020] 6. This application facilitates digital management, effectively promotes technological upgrading in the industry, and provides a standardized technical solution for tire cone force repair. Attached Figure Description

[0021] The present invention will now be further described in conjunction with the following accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the fully automatic tire cone force repair machine described in this application; Figures 2 to 4 Schematic diagrams of the overall structure from different perspectives; Figure 5 A schematic diagram of the main grinding assembly; Figure 6 This is a schematic diagram of a tire clamping device; Figure 7 This is a schematic diagram of a tire lifting device; Figure 8 This is a schematic diagram of a laser scanning device; Detailed Implementation

[0023] To further illustrate the technical means adopted by this application to achieve the intended design purpose, the following preferred embodiments are presented in conjunction with the accompanying drawings.

[0024] Specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many ways other than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] Example 1, as Figures 1 to 8 As shown, the fully automatic tire cone repair machine of this application includes a main frame 1, at least one set of slide table assemblies is provided at the bottom of the main frame 1, a main grinding assembly 6 is slidably connected on the slide table assemblies, a tire sidewall grinding device 7 and a laser scanning device 8 are installed on the top of the main frame 1, a left rim assembly 4 and a right rim assembly 5 are respectively mounted inside the main frame 1 through the drive mechanisms on both sides, and a rotary drive assembly 12 for driving the left rim assembly 4 or the right rim assembly 5 to rotate circumferentially, a clamping device 11 for driving the left rim assembly 4 and the right rim assembly 5 to reciprocate axially to clamp the tire to be ground and a tire lifting device 10 are provided on the side of the main frame 1, and the tire to be ground is installed between the left rim assembly 4 and the right rim assembly 5.

[0026] Specifically, the slide assembly includes a lower slide assembly 3 slidably connected to the bottom of the main frame 1, an upper slide assembly 2 slidably connected to the lower slide assembly 3, and a main grinding assembly 6 slidably connected to the upper slide assembly 2.

[0027] The upper slide assembly 2 includes a servo rotary assembly 2-2, an upper slide support assembly 2-1 rotatably connected to the servo rotary assembly 2-2 in a circumferential direction, a main grinding assembly 6 fixedly connected to the upper slide support assembly 2-1, and the servo rotary assembly 2-2 slidably connected to the lower slide assembly 3 via a slider and a guide rail assembly; the upper slide support assembly 2-1 carries the main grinding assembly 6 and can swing relative to the lower slide assembly 3 to achieve a grinding range with the grinding head of the main grinding assembly 6 having different angles relative to the tire surface.

[0028] In addition, a servo electric cylinder 3-1 is provided on the lower slide assembly 3. The output end of the servo electric cylinder 3-1 is connected to the servo rotary assembly 2-2 to control the main grinding assembly 6 to move back and forth in a linear direction (i.e., the diameter direction of the tire to be ground) to adapt to tires of different diameters.

[0029] The sliding platform assembly 3 is slidably connected to the main frame 1 via another set of sliders and guide rail assembly.

[0030] The driving mechanism includes a linear displacement driving mechanism such as a clamping device 11, and a rotary driving mechanism such as a rotary driving assembly 12. The clamping device 11 can be a lead screw and nut driving device, a synchronous belt and pulley driving device, or a servo motor driving device, etc. In this embodiment, a cylinder assembly is preferred. For example, the left wheel rim assembly 4 is axially connected along one side end of the main frame 1 by a set of cylinder assemblies and can reciprocate to achieve a large displacement range of tire clamping operation in the front and rear directions of grinding.

[0031] Meanwhile, in this embodiment, the rotary drive assembly 12 is preferably a servo motor assembly. The side of the right rim assembly 5 is driven and connected by the servo motor assembly. The right rim assembly 5 drives the tire to be polished to rotate synchronously with the left rim assembly 4, so as to facilitate polishing different parts of the tire tread.

[0032] The laser scanning device 8 includes a scanning servo component 8-1 fixed to the top of the main frame 1 and a scanning mounting base 8-4. The laser scanner 8-3 is mounted on the laser mounting base 8-2. The laser mounting base 8-2 is slidably connected to the guide rail 8-5 set on the scanning mounting base 8-4 via a slider. The output end of the scanning servo component 8-1 is dual-drive connected to the laser mounting base 8-2. Driven by the scanning servo component 8-1 and driven by the laser mounting base 8-2, the laser scanner 8-3 moves back and forth along the guide rail 8-5 to scan the tire to be polished, thereby confirming the position and size of the tire tread and shoulder, and at the same time confirming the starting point of the polishing. The data from the laser scanning can form the outer contour size of the tire tread (including the shoulder) within the system, providing data support for the subsequent polishing process.

[0033] A grinding head cooling device 9 is installed on the top of the main grinding assembly 6 to cool the grinding head, ensuring grinding efficiency and preventing the tire from scorching during the grinding process.

[0034] The tire lifting device 10 is mounted on a column on one side of the main frame 1 to facilitate the loading and unloading of tires for grinding, avoiding manual handling, saving labor, improving efficiency, and ensuring personnel safety. The tire lifting device 10 includes a lifting cylinder 10-1 mounted on the column of the main frame 1. The output end of the lifting cylinder 10-1 is hinged to one end of a hinged cantilever 10-2, and the other end of the hinged cantilever 10-2 is hinged to a tire lifting seat 10-3 for supporting the tire to be ground. At least one set of lifting operating handles 10-4 is provided on the tire lifting seat 10-3. The operating handles 10-4 are equipped with buttons to control the clamping device 11, thereby indirectly controlling the opening and closing of the left rim assembly 4 and the right rim assembly 5, and simultaneously directly controlling the lifting cylinder 10-1 to vertically drive the tire lifting seat 10-3 to rise and fall. With manual pushing, the tire lifting seat 10-3 can be rotated horizontally at a certain angle for easy loading and unloading of tires.

[0035] The clamping device 11 is installed on the side column of the main frame 1 and includes a cylinder clamping assembly 11-1 and a limit cylinder assembly 11-4. The cylinder clamping assembly 11-1 is only driven to connect to the left wheel rim assembly 4. The left servo clamping assembly 11-2 and the right servo clamping assembly 11-3 drive the left wheel rim assembly 4 and the right wheel rim assembly 5 to adjust and clamp the tires according to the preset stroke, respectively.

[0036] For example, assuming the total width of the tire is 300mm and the bead width is 200mm, when installing the tire, the relative opening width between the left and right rims should be 400mm, meaning the tire should be greater than 300mm to fit. Then, the clamping cylinder of the cylinder clamping assembly 11-1 moves the left rim assembly 4 from 400mm to 250mm. The remaining 50mm is then precisely moved horizontally 25mm towards the center by the left servo clamping assembly 11-2 and the right servo clamping assembly 11-3, respectively. Finally, the distance between the two rims is 200mm, the same as the bead width, and clamping is complete.

[0037] When the tire to be ground is not clamped, the limit cylinder assembly 11-4 is in the open state, and the cylinder clamping assembly 11-1 drives the left rim assembly 4 to move horizontally to ensure that there is enough space between the left and right rim assemblies for the installation of the tire. At the same time, the left servo clamping assembly 11-2 and the right servo clamping assembly 11-3 drive the left rim assembly 4 and the right rim assembly 5 to adjust according to the preset stroke to accurately clamp tires of different sizes.

[0038] After the tire is installed between the two rim assemblies, the cylinder clamping assembly 11-1 pushes the left rim assembly 4 forward to initially clamp the tire; then, according to the actual tire specifications, the parameters are set, and the left servo clamping assembly 11-2 and the right servo clamping assembly 11-3 are adjusted to drive the left rim assembly 4 and the right rim assembly 5 to clamp the tire from both sides.

[0039] Finally, the limit cylinder 11-4 retracts, and the limit assembly locks onto the main shaft to inflate the tire.

[0040] Applying the structural design of the fully automatic tire cone force repair machine described above, the grinding control process includes the following steps: Step 1: The main grinding assembly 6 retracts to its initial end position; the cylinder clamping assembly 11-1 retracts completely to its starting position; the left servo clamping assembly 11-2 and the right servo clamping assembly 11-3 also retract to their set starting positions, thereby retracting the left and right rim assemblies to their respective starting positions; the lifting cylinder 10-1 extends completely, the tire lifting device 10 is in its lowest starting position, and at the same time the limit cylinder assembly 11-4 is in the open state, and the limit block is separated from the main shaft; Step 2: Place the tire to be repaired on the tire lifting seat 10-3 of the tire lifting device 10, manually adjust the button on the lifting operation handle 10-4, and at the same time manually push the tire lifting assembly 10 to move forward and swing, and cooperate with the lifting cylinder 10-1 to pull back, raising the tire to the position of the middle rim. Step 3: The cylinder clamping assembly 11-1 extends, driving the left wheel rim assembly 4 forward to initially clamp the tire to be repaired; Step 4: Set the parameters of the left and right servo clamping motors according to the actual tire specifications. The servo motors move, thereby driving the left and right rim assemblies to further clamp the tire according to the set parameters. Step 5: The limit cylinder assembly 11-3 retracts, the limit block is locked on the main shaft, and at the same time the clamping cylinder 11-1 is depressurized. The limit assembly 11-3 can limit the position of the left wheel rim assembly 4. Then the tire to be repaired is inflated. Step 6: The motor in the rotary drive assembly 12 starts at the set speed, thereby driving the tire to be ground to rotate at a uniform speed. The scanning servo assembly starts, driving the laser scanner 8-3 to move about 10-150 degrees to perform a full contour scan of the tire to be ground. Step 7: According to the scanned tire parameters, the upper slide assembly 2 moves forward along the linear guide rail. At this time, the entire main grinding assembly 6 is close to the tire to be ground as required; the servo rotary assembly 2-2 rotates, and the lower slide assembly 3 moves left and right along the linear guide rail, so that the center of the grinding wheel in the main grinding assembly 6 is aligned with the center of the tire, and the equipment is in a ready-to-work state. Step 8: The motor in the rotary drive assembly 12 starts at the set speed, thereby driving the tire to be repaired to rotate at a constant speed; the motor in the main repair assembly 6 starts, thereby driving the repair wheel to rotate at high speed; the repair parameters are set according to the requirements to realize the forward and backward movement, left and right movement and horizontal swing of the main repair assembly 6, thereby realizing the repair and conical force repair of the tire; Step 9: After the repair is completed, the main grinding assembly 6 retracts to the starting position. The equipment is operated to stop the main grinding motor and the tire drive motor, and the tire stops rotating. At the same time, the tire pressure is released. The lifting operation handle 10-4 is manually operated, and the tire lifting device 10 is pushed forward to be under the tire. The limit cylinder assembly 11-4 opens, the limit block separates from the main shaft, the left servo clamping assembly 11-2 and the right servo clamping assembly 11-3 retract to the initial position, and the left rim assembly 4 and the right rim assembly 5 are initially opened. The cylinder clamping assembly 11-1 retracts, the left rim assembly 4 is further opened, and the tire falls back onto the tire lifting device.

[0041] In summary, the embodiments shown in the accompanying drawings are merely preferred solutions for achieving the objectives of this utility model. Those skilled in the art can draw inspiration from this and directly derive other alternative structures that conform to the design concept of this utility model. Other structural features derived therefrom also fall within the scope of the solutions described in this utility model.

Claims

1. A fully automatic tire cone force repair machine, comprising a main frame, characterized in that: At least one set of slide table assemblies is provided at the bottom of the main frame, and the main grinding assembly is slidably connected on the slide table assemblies. A tire sidewall grinding device and a laser scanning device are installed at the top of the main frame. The left wheel rim assembly and the right wheel rim assembly are respectively mounted inside the main frame through the drive mechanisms on both sides. A rotary drive assembly for driving the left wheel rim assembly or the right wheel rim assembly to rotate circumferentially, a clamping device for driving the left wheel rim assembly and the right wheel rim assembly to reciprocate axially to clamp the tire to be ground, and a tire lifting device are provided on the side of the main frame. The tire to be ground is installed between the left wheel rim assembly and the right wheel rim assembly.

2. The fully automatic tire cone force repair machine according to claim 1, characterized in that: The slide assembly includes a lower slide assembly slidably connected to the bottom of the main frame, an upper slide assembly slidably connected to the lower slide assembly, and a main grinding assembly slidably connected to the upper slide assembly.

3. The fully automatic tire cone force repair machine according to claim 2, characterized in that: The upper slide assembly includes a servo rotary assembly, an upper slide support assembly is rotatably connected to the servo rotary assembly in a circumferential direction, a main grinding assembly is fixedly connected to the upper slide support assembly, and the servo rotary assembly is slidably connected to the lower slide assembly via a slider and a guide rail assembly; the upper slide support assembly carries the main grinding assembly and can swing relative to the lower slide assembly. A servo electric cylinder is installed on the lower slide assembly. The output end of the servo electric cylinder is connected to the servo rotary assembly to control the main grinding assembly to move back and forth in a linear direction for feeding.

4. The fully automatic tire cone force repair machine according to claim 1 or 3, characterized in that: The laser scanning device includes a scanning servo assembly and a scanning mounting base fixed to the top of the main frame. The laser scanner is mounted on the laser mounting base, which is slidably connected to a guide rail on the scanning mounting base via a slider. The output end of the scanning servo assembly is dual-drive connected to the laser mounting base.

5. The fully automatic tire cone force repair machine according to claim 1, characterized in that: A grinding head cooling device is installed on top of the main grinding assembly.

6. The fully automatic tire cone force repair machine according to claim 1, characterized in that: The tire lifting device is mounted on a column on one side of the main frame and includes a lifting cylinder mounted on the column of the main frame. The output end of the lifting cylinder is hinged to one end of a hinged cantilever, and the other end of the hinged cantilever is hinged to a tire lifting seat for carrying the tire to be ground. At least one set of lifting operation handles is provided on the tire lifting seat.

7. The fully automatic tire cone force repair machine according to claim 1 or 6, characterized in that: The clamping device is installed on the side column of the main frame and includes a cylinder clamping assembly and a limit cylinder assembly. The cylinder clamping assembly is driven to be connected to the left wheel rim assembly or the right wheel rim assembly to achieve horizontal movement along the cylinder extension and retraction direction. Meanwhile, the left servo clamping assembly is driven to connect to the left rim assembly, and the right servo clamping assembly is driven to connect to the right rim assembly, so that each can move in the horizontal direction to clamp or release the tire.

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