Pressure regulating device for tyre large grinding equipment

Abstract

The utility model provides tire big polishing equipment pressure regulating device, including base, be provided with processing support on the base, be provided with connecting rod on the processing support rotation, the connecting rod end is provided with the expansion rim, still be provided with the polishing equipment of tire polishing on the base, be provided with the air pump on the base, be installed with pressure regulating device through quick detach assembly on the processing support, and the pressure regulating device is connected with the air pump through the trachea, the pressure regulating device includes installation box, the inside installation box is provided with pressure regulating valve, and the pressure regulating valve is linked with the trachea, be provided with the adjusting knob of pressure regulating valve for controlling on the installation box, still be provided with the pressure gauge that communicates with the pressure regulating valve on the installation box. Set up a set of pressure regulating device on the trachea, can according to demand and adjust high air pressure to make the tire inflation when the pressure in tire rises to critical threshold, the dark wound area that the tire exists is convenient for the intuitive detection, improves dark wound detection rate greatly.

Description

Technical Field

[0001] This utility model relates to the field of tire retreading technology, specifically a pressure regulating device for tire grinding equipment. Background Technology

[0002] Tire grinding equipment is the core equipment in the tire retreading production line. It is specially designed to perform precision processing on old tires (especially high-priced special tires such as giant engineering tires and aviation tires). Its core tasks can be summarized as follows: accurately peeling off the waste rubber layer, such as grinding away the old rubber layer that has been worn, aged and cracked due to use, precisely exposing the intact tire carcass (steel wire / fiber cord layer), reshaping the geometric contour of the tire carcass, and shaping the ground tire carcass into a standard geometric shape (such as flat, arc or preset tread groove) according to the tire model and usage scenario. During the inflation grinding process, internal hidden dangers (cord breakage, delamination) bulge due to changes in tire carcass tension, making it easy to identify bulges and cracks with the naked eye or sensors.

[0003] Traditional large-scale tire polishing equipment typically inflates tires to a fixed pressure according to tire specifications. After the tire bulges normally, it begins to inspect for damage before polishing. However, some hidden damage cannot be directly detected. For example, under standard tire pressure, unbroken cords are already taut, but some broken cords remain loose due to excess length. Only when the pressure rises to a critical threshold (such as 12 bar) are the remaining cords fully straightened, and the broken area suddenly becomes unstable and bulges out, forming a visible bulge. Current industry solutions usually involve purchasing expensive booster equipment to improve the detection rate of hidden damage, which is undoubtedly a burden for small processing enterprises. Therefore, there is an urgent need for a low-cost pressure regulating device that can meet the pressure requirements. Utility Model Content

[0004] The purpose of this invention is to provide a pressure regulating device for tire retreading equipment, which aims to solve the problem that the existing technology requires the purchase of expensive booster equipment to improve the detection rate of hidden damage, resulting in high costs.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a tire grinding equipment pressure regulating device, including a base, a processing bracket on the base, a connecting rod rotatably mounted on the processing bracket, an expansion rim at the end of the connecting rod, a grinding device for grinding tires on the base, an air pump on the base, a pressure regulating device mounted on the processing bracket via a quick-release assembly, and the pressure regulating device connected to the air pump via an air pipe, the pressure regulating device including a mounting box, a pressure regulating valve inside the mounting box, the pressure regulating valve being connected to the air pipe, an adjusting knob for controlling the pressure regulating valve on the mounting box, a pressure gauge connected to the pressure regulating valve on the mounting box, the air outlet of the pressure gauge being connected to a main air pipe, a pressurizing pipe, and a venting pipe, and the air outlets of the main air pipe, the pressurizing pipe, and the venting pipe are all connected to the tire air inlet.

[0006] Preferably, the vent pipe is equipped with a vent valve.

[0007] Preferably, a one-way valve is provided on the main air pipe.

[0008] Preferably, the pressurization pipe is equipped with a solenoid valve.

[0009] Preferably, a mounting rod is provided on one side of the processing bracket, and the quick-release assembly includes an arc-shaped clip adapted to the size of the mounting rod and is fixedly installed on the mounting rod by bolts. One side of the arc-shaped clip is fixedly connected to the back of the mounting box.

[0010] Preferably, a support pad is provided at the bottom of the mounting box.

[0011] The beneficial effects of this utility model are:

[0012] 1. When this utility model is in use, by setting a pressure regulating device on the air pipe, the air pressure can be increased as needed so that the tire expands when the internal pressure of the tire rises to the critical threshold. The residual cord breakage area suddenly becomes unstable and bulges out, forming a visible bulge. This makes it easy to intuitively detect the hidden damage area of ​​the tire, greatly improving the detection rate of hidden damage. The device has a simple structure and can be easily modified to achieve efficient pressure regulating function, greatly improving the detection rate of hidden damage while reducing the processing cost of enterprises.

[0013] 2. In use, this utility model has a mounting rod on one side of the bracket for easy installation of the mounting box. When installation is required, the arc-shaped clip is inserted into the mounting rod and then bolts are tightened to fix it, thus achieving quick installation. Attached Figure Description

[0014] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding portions, wherein:

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

[0016] Figure 2 This is a schematic diagram of the structure of this utility model after removing the tire and the expanded rim;

[0017] Figure 3 This is a specific embodiment of the present utility model. Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a schematic diagram of the structure of the tire and the back of the inflatable rim according to a specific embodiment of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of a pressure regulating valve according to a specific embodiment of this utility model.

[0020] In the diagram: 1. Base; 2. Machining bracket; 3. Connecting rod; 4. Expansion rim; 5. Tire; 6. Grinding equipment; 7. Mounting rod; 8. Arc clamp; 9. Mounting box; 10. Pressure gauge; 11. Adjusting knob; 12. Air pipe; 13. Main air pipe; 14. Pressurization pipe; 15. Vent pipe; 16. One-way valve; 17. Vent valve; 18. Air pump; 19. Support pad; 20. Pressure regulating valve; 21. Solenoid valve. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0022] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0023] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0024] like Figure 1-5 As shown, the tire grinding equipment 6 pressure regulating device includes a base 1, a processing bracket 2 on the base 1, a connecting rod 3 rotatably mounted on the processing bracket 2, an expansion rim 4 at the end of the connecting rod 3, a grinding device 6 for grinding the tire 5 on the base 1, an air pump 18 on the base 1, and a pressure regulating device mounted on the processing bracket 2 via a quick-release assembly. The pressure regulating device is connected to the air pump 18 via an air pipe 12. The pressure regulating device includes a mounting box 9, a pressure regulating valve 20 inside the mounting box 9, and the pressure regulating valve 20 is connected to the air pipe 12. The mounting box 9 has an adjustment knob 11 for controlling the pressure regulating valve 20, and a pressure gauge 10 connected to the pressure regulating valve 20. The outlet of the pressure gauge 10 is connected to a main air pipe 13, a pressurizing pipe 14, and a venting pipe 15, and the outlets of the main air pipe 13, the pressurizing pipe 14, and the venting pipe 15 are all connected to the air inlet of the tire 5.

[0025] In this embodiment, by setting a pressure regulating device on the air pipe 12, the air pressure can be increased as needed so that the tire 5 expands when the internal pressure of the tire 5 rises to the critical threshold. The residual cord breakage area suddenly becomes unstable and bulges out, forming a visible bulge. This makes it easy to intuitively detect the hidden damage area of ​​the tire 5, greatly improving the detection rate of hidden damage. The device has a simple structure and can be easily modified to achieve efficient pressure regulating function, greatly improving the detection rate of hidden damage while reducing the processing cost of enterprises.

[0026] like Figure 3 As shown, a vent valve 17 is installed on the vent pipe 15.

[0027] In this embodiment, by setting a vent valve 17, when the vent valve 17 on the vent pipe 15 is opened, the gas flows into the vent pipe 15 and is discharged through the vent valve 17, thereby reducing pressure.

[0028] like Figure 3 As shown, a one-way valve 16 is installed on the main air pipe 13.

[0029] In this embodiment, by setting a one-way valve 16, the airflow can only be delivered from the air pump 18 to the tire 5, preventing backflow when deflation is required.

[0030] like Figure 3 As shown, a solenoid valve 21 is installed on the pressurization pipe 14.

[0031] In this embodiment, by setting up a solenoid valve 21, when pressure relief is required, the solenoid valve 21 can be closed, so that the airflow can only enter the vent pipe 15 and then be discharged through the vent valve 17.

[0032] like Figure 2As shown, a mounting rod 7 is provided on one side of the processing bracket 2. The quick-release assembly includes an arc-shaped clip 8 that is adapted to the size of the mounting rod 7 and is fixedly installed on the mounting rod 7 by bolts. One side of the arc-shaped clip 8 is fixedly connected to the back of the mounting box 9.

[0033] In this embodiment, the mounting rod 7 is provided to facilitate the installation of the mounting box 9. When installation is required, the arc-shaped clip 8 is inserted into the mounting rod 7 and then bolts are used to tighten and fix it, thus achieving quick installation.

[0034] like Figure 2 As shown, a support pad 19 is provided at the bottom of the mounting box 9.

[0035] In this embodiment, a support pad is provided to ensure that the bottom of the mounting box 9 fits against the processing bracket 2, thus maintaining the stability of the mounting box 9.

[0036] Working principle: Before grinding tire 5, tire 5 is first fitted onto the expansion rim 4 and supported. Simultaneously, air pump 18 is started. Air pump 18 generates high-pressure gas which passes through air pipe 12, mounting box 9, and then through main air pipe 13, pressurization pipe 14, and vent pipe 15 to supply air to tire 5. The pressure regulating valve 20 is adjusted by rotating the adjusting knob 11 to make the air pressure slightly higher than the standard fixed air pressure. The pressure gauge can display the internal air pressure status of tire 5 in real time. After inflation, tire 5 bulges. Compared to the traditional fixed air pressure, when the pressure rises to a critical threshold, tire 5 expands, and the remaining cord breakage area suddenly becomes unstable and bulges, forming a visible bulge, which is easily detected visually. The device significantly improves the detection rate of hidden damage in areas with defects. Its simple structure allows for easy modification to achieve efficient pressure regulation, greatly enhancing the detection rate of hidden damage. After inspection, the air pump 18 is shut off, and the solenoid valve 21 on the pressurization pipe 14 is closed to seal the pressurization pipe 14. The one-way valve 16 on the main air pipe 13 prevents backflow of air. When the vent valve 17 on the vent pipe 15 is opened, the gas flows into the vent pipe 15 and is discharged through the vent valve 17 to reduce pressure. After pressure reduction, the air pump 18 is restarted, and a fixed air pressure is stably injected through the air pipe 12 and the main air pipe 13 to inflate the tire 5 for routine polishing.

[0037] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to 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; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0039] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pressure regulating device for tire grinding equipment, comprising a base (1), a processing bracket (2) provided on the base (1), a connecting rod (3) rotatably provided on the processing bracket (2), an expansion rim (4) provided at the end of the connecting rod (3), and a grinding device (6) for grinding tires (5) also provided on the base (1), characterized in that, An air pump (18) is provided on the base (1). A pressure regulating device is installed on the processing bracket (2) through a quick-release assembly. The pressure regulating device is connected to the air pump (18) through an air pipe (12). The pressure regulating device includes a mounting box (9). A pressure regulating valve (20) is provided inside the mounting box (9). The pressure regulating valve (20) is connected to the air pipe (12). An adjustment knob (11) for controlling the pressure regulating valve (20) is provided on the mounting box (9). A pressure gauge (10) connected to the pressure regulating valve (20) is also provided on the mounting box (9). The outlet of the pressure gauge (10) is connected to the main air pipe (13), the pressurizing pipe (14), and the venting pipe (15), respectively. The outlets of the main air pipe (13), the pressurizing pipe (14), and the venting pipe (15) are all connected to the tire inlet.

2. The pressure regulating device for tire grinding equipment according to claim 1, characterized in that, The vent pipe (15) is equipped with a vent valve (17).

3. The pressure regulating device for tire grinding equipment according to claim 1, characterized in that, A one-way valve (16) is installed on the main air pipe (13).

4. The pressure regulating device for tire grinding equipment according to claim 1, characterized in that, A solenoid valve (21) is installed on the pressurization pipe (14).

5. The pressure regulating device for tire grinding equipment according to claim 1, characterized in that, The processing bracket (2) has an installation rod (7) on one side. The quick-release assembly includes an arc-shaped clip (8) that is adapted to the size of the installation rod (7) and is fixedly installed on the installation rod (7) by bolts. One side of the arc-shaped clip (8) is fixedly connected to the back of the mounting box (9).

6. The pressure regulating device for tire grinding equipment according to claim 5, characterized in that, The bottom of the mounting box (9) is provided with a support pad (19).

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