Side face polishing device for valve lining polytetrafluoroethylene pipe fitting production

By designing an automated flipping and grinding mechanism, the problems of low grinding efficiency and unstable quality of PTFE-lined valve fittings in the existing technology have been solved, realizing all-round uniform grinding and efficient automated production.

CN224182698UActive Publication Date: 2026-05-01RUGAO HUITENG FLUOROPLASTICS ANTICORROSION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUGAO HUITENG FLUOROPLASTICS ANTICORROSION CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing side grinding equipment for valve PTFE-lined pipe fittings lacks automation, resulting in low work efficiency, unstable grinding quality, and unevenness due to human factors, which affects the final quality of the pipe fittings and increases the labor intensity and safety hazards of workers.

Method used

An automatic grinding device was designed, comprising a base, a first flipping mechanism, a second flipping mechanism, and a grinding mechanism. The flipping mechanism assists in turning the pipe over, the grinding mechanism achieves all-round grinding, and a cleaning brush is provided to remove impurities, ensuring the uniformity and stability of grinding.

Benefits of technology

The system enables automated grinding of the sides of valve PTFE-lined fittings, improving grinding efficiency and quality, reducing the impact of human factors, lowering the labor intensity of workers, and enhancing safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of valve lining polytetrafluoroethylene pipe fitting production equipment, in particular to a side face polishing device for valve lining polytetrafluoroethylene pipe fitting production, which comprises a base and a polishing mechanism. The first turnover mechanism is started to rotate, the rotating first turnover mechanism drives the valve lining teflon pipe fitting to rotate, and the acting force of rotation of the valve lining teflon pipe fitting drives the multiple sets of second turnover mechanisms to rotate; a plurality of sets of first rotating wheels convenient to rotate are matched with a plurality of sets of second rotating wheels to drive the valve lining teflon pipe fitting to rotate and turn over, the grinding mechanism is started to grind the side face of the valve lining teflon pipe fitting in all directions, the grinding mechanism moves in parallel while grinding, the rotating valve lining teflon pipe fitting and the grinding mechanism rotate relatively, and therefore the valve lining teflon pipe fitting is ground. And the side face of the valve lining polytetrafluoroethylene pipe fitting can be conveniently polished in all directions, and the function of automatically polishing the side face of the valve lining polytetrafluoroethylene pipe fitting is achieved.
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Description

A side grinding device for the production of PTFE-lined valve fittings Technical Field

[0001] This utility model relates to the technical field of valve PTFE-lined pipe fitting production equipment, specifically a side grinding device for valve PTFE-lined pipe fitting production. Background Technology

[0002] In the production process of PTFE-lined valve fittings, side grinding plays an important role. Grinding improves the sealing performance of the fittings, facilitates subsequent processing, and enhances the surface quality. Through these effects, side grinding ensures the performance, safety, and reliability of PTFE-lined valve fittings.

[0003] However, existing grinding equipment still has certain shortcomings in use. When grinding the sides of valve PTFE-lined pipe fittings, the grinding equipment is usually manually held by hand to grind the sides of the fittings. Existing grinding equipment does not have the function of automatically grinding the sides of valve PTFE-lined pipe fittings. Manual grinding leads to low work efficiency and unstable grinding quality. It is easy to cause uneven grinding due to human factors, which affects the final quality of the fittings. In addition, long-term manual grinding will increase the labor intensity of workers and pose safety hazards. Summary of the Invention

[0004] The purpose of this invention is to provide a side grinding device for the production of PTFE-lined valve fittings, in order to solve the problems mentioned in the background art, such as low work efficiency and unstable grinding quality caused by manual grinding, which are prone to uneven grinding due to human factors and affect the final quality of the fittings.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A side grinding device for the production of PTFE-lined valve fittings includes a base and a grinding mechanism. A first flipping mechanism for flipping the fitting is provided on one side of the top of the base. A second flipping mechanism for assisting in flipping the fitting is provided at equal intervals on the side of the base close to the first flipping mechanism. A grinding mechanism for grinding the side of the fitting is provided on the side of the base away from the first flipping mechanism.

[0007] Preferably, the first flipping mechanism includes a first shaft frame mounted on one side of the top of the base, a first rotating rod rotatably mounted on the inner side of the first shaft frame, and first rotating wheels equidistantly fitted on the surface of the first rotating rod.

[0008] Preferably, a drive motor is mounted on one side of the outer wall of the first shaft frame via a mounting base, and the output end of the drive motor is fixedly connected to one end of the first rotating rod via a shaft.

[0009] Preferably, the plurality of second flipping mechanisms include a plurality of second shaft frames installed on one side of the top of the base. The bottom ends of the plurality of second shaft frames are all arranged at equal intervals on the side of the base near the first shaft frame. The interior of each plurality of second shaft frames is fixedly connected with a second rotating rod. The surface of each plurality of second rotating rods is fixedly fitted with a second rotating wheel. One side of each plurality of second rotating wheels is arranged opposite to one side of each plurality of first rotating wheels.

[0010] Preferably, the grinding mechanism includes a third shaft frame installed on one side of the top of the base. The third shaft frame is located on the side of the base away from the first shaft frame. A lead screw is rotatably installed on the inner side of the third shaft frame. A limit rod is fixedly installed on the side of the third shaft frame near the lead screw. A threaded sleeve seat is slidably fitted on the surface of the lead screw and the limit rod. A servo motor is installed on one side of the outer wall of the third shaft frame through a mounting seat. The output end of the servo motor is fixedly connected to one end of the lead screw through a shaft.

[0011] Preferably, both ends of the thread sleeve seat are fixedly connected to cleaning brushes, and the inner surfaces of the two sets of cleaning brushes are fitted onto the surfaces of the thread rod and the limiting rod.

[0012] Preferably, a fourth shaft bracket is fixedly installed at the top of the thread sleeve seat, a grinding wheel is rotatably installed on the inner side of the fourth shaft bracket, the surface of the grinding wheel is provided with sandpaper, and a grinding motor is fixedly installed on one side of the outer wall of the fourth shaft bracket through a mounting seat. The output end of the grinding motor is fixedly connected to one end of the grinding wheel through a shaft.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model automatically grinds the sides of valve-lined PTFE pipes by activating a first flipping mechanism. This first flipping mechanism rotates the valve-lined PTFE pipe fitting, and the force of this rotation drives several sets of second flipping mechanisms to rotate. These first and second rotating wheels then work together to rotate and flip the valve-lined PTFE pipe fitting. A grinding mechanism is then activated to perform all-around grinding on the sides of the valve-lined PTFE pipe fitting. This grinding mechanism moves parallel to the valve-lined PTFE pipe fitting, which rotates relative to it, facilitating all-around grinding of the pipe fitting's sides. This achieves automatic grinding of the valve-lined PTFE pipe fitting's sides, solving the problems of low efficiency, unstable grinding quality, and uneven grinding due to human error that affects the final quality of the pipe fitting.

[0015] 2. This utility model, while moving in parallel, drives two sets of cleaning brushes to move parallel to the surfaces of the lead screw and the limiting rod. The cleaning brushes are designed to remove impurities or debris adhering to the surfaces of the lead screw and the limiting rod, preventing impurities or debris from affecting the smooth sliding of the sleeve seat on the surfaces of the lead screw and the limiting rod. This ensures that the grinding wheel can stably and accurately grind the PTFE-lined valve fittings. The cleaning brushes are made of wear-resistant and durable materials to ensure that they maintain good cleaning performance during long-term use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 is a three-dimensional structural schematic diagram of this utility model;

[0018] Figure 2 is a structural schematic diagram of the first flipping mechanism of this utility model;

[0019] Figure 3 is a structural schematic diagram of the second flipping mechanism of this utility model;

[0020] Figure 4 is a schematic diagram of the grinding mechanism of this utility model;

[0021] Figure 5 is a structural schematic diagram of the cleaning brush of this utility model.

[0022] The reference numerals in the figure are as follows: 1. Base; 2. First flipping mechanism; 201. First shaft frame; 202. First rotating rod; 203. First rotating wheel; 204. Drive motor; 3. Second flipping mechanism; 301. Second shaft frame; 302. Second rotating rod; 303. Second rotating wheel; 4. Grinding mechanism; 401. Third shaft frame; 402. Lead screw; 403. Limiting rod; 404. Lead sleeve seat; 405. Servo motor; 406. Cleaning brush; 407. Fourth shaft frame; 408. Grinding wheel; 409. Grinding motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] As shown in Figures 1-4, a side grinding device for the production of PTFE-lined valve fittings includes a base 1 and a grinding mechanism 4. A first flipping mechanism 2 for flipping the fittings is provided on one side of the top of the base 1. The first flipping mechanism 2 includes a first shaft 201 installed on one side of the top of the base 1. A first rotating rod 202 is rotatably installed on the inner side of the first shaft 201. A first rotating wheel 203 is equidistantly fitted on the surface of the first rotating rod 202. A drive motor 204 is installed on one side of the outer wall of the first shaft 201 through a mounting seat. The output end of the drive motor 204 is fixedly connected to one end of the first rotating rod 202 through a shaft.

[0025] In specific implementation, the first rotating rod 202 is driven to rotate by starting the drive motor 204. The rotating first rotating rod 202 drives several sets of first rotating wheels 203 to rotate synchronously, so that the several sets of rotating first rotating wheels 203 can drive the valve PTFE-lined pipe fittings to rotate.

[0026] As a technical optimization of this utility model, as shown in Figures 1 and 3, a second flipping mechanism 3 for assisting in flipping the tube is equidistantly arranged on the side of the base 1 near the first flipping mechanism 2. Several sets of second flipping mechanisms 3 include several sets of second shaft brackets 301 installed on one side of the top of the base 1. The bottom ends of several sets of second shaft brackets 301 are all equidistantly arranged on the side of the base 1 near the first shaft bracket 201. A second rotating rod 302 is fixedly connected inside each set of second shaft brackets 301. A second rotating wheel 303 is fixedly fitted on the surface of each set of second rotating rods 302. One side of each set of second rotating wheels 303 is opposite to one side of each set of first rotating wheels 203.

[0027] In practice, when the PTFE-lined valve fittings are flipped on the first flipping mechanism 2, several sets of second rotating wheels 303 of the second flipping mechanism 3 and several sets of first rotating wheels 203 of the first flipping mechanism 2 rotate in coordination with each other, which can effectively assist the PTFE-lined valve fittings in the flipping operation, so that the fittings can be polished more evenly during the polishing process, thereby improving polishing efficiency and polishing quality.

[0028] As a technical optimization of this utility model, as shown in Figures 1 and 4, a grinding mechanism 4 for grinding the side of the pipe fitting is provided on the side of the base 1 away from the first flipping mechanism 2. The grinding mechanism 4 includes a third shaft bracket 401 installed on one side of the top of the base 1. The third shaft bracket 401 is located on the side of the base 1 away from the first shaft bracket 201. A lead screw 402 is rotatably installed on the inner side of the third shaft bracket 401. A limit rod 403 is fixedly installed on the side of the third shaft bracket 401 near the lead screw 402. A threaded sleeve seat 404 is slidably fitted on the surfaces of the lead screw 402 and the limit rod 403. A servo motor is installed on one side of the outer wall of the third shaft bracket 401 through a mounting seat. The output end of the servo motor 405 is fixedly connected to one end of the lead screw 402 via a shaft. Both ends of the lead screw sleeve 404 are fixedly connected to cleaning brushes 406. The inner surfaces of the two sets of cleaning brushes 406 are fitted onto the surfaces of the lead screw 402 and the limit rod 403. The top of the lead screw sleeve 404 is fixedly mounted with a fourth shaft bracket 407. A grinding wheel 408 is rotatably mounted on the inner side of the fourth shaft bracket 407. The surface of the grinding wheel 408 is provided with sandpaper. A grinding motor 409 is fixedly mounted on one side of the outer wall of the fourth shaft bracket 407 via a mounting base. The output end of the grinding motor 409 is fixedly connected to one end of the grinding wheel 408 via a shaft.

[0029] In specific implementation, by simultaneously activating the servo motor 405 and the grinding motor 409, the servo motor 405 drives the lead screw 402 to rotate. The rotating lead screw 402 causes the lead sleeve seat 404 to move parallel to the surface of the lead screw 402 and the limit rod 403. The parallel movement of the lead sleeve seat 404 causes the grinding wheel 408 to move parallel to the surface. At this time, the activated grinding motor 409 drives the grinding wheel 408 to rotate inside the fourth shaft frame 407. The rotating grinding wheel 408 grinds the side of the PTFE-lined valve fitting. It should be noted that due to the parallel movement of the lead sleeve seat 404, the grinding wheel 408 moves parallel to the side of the PTFE-lined valve fitting. The rotating PTFE-lined valve fitting and the grinding wheel 408 move in parallel. The rotation facilitates all-around grinding of the sides of the PTFE-lined valve fittings, improving the uniformity of grinding. Simultaneously, the threaded sleeve seat 404 moves in parallel, driving two sets of cleaning brushes 406 to move parallel across the surfaces of the threaded rod 402 and the limiting rod 403. The cleaning brushes 406 are designed to remove impurities or debris adhering to the surfaces of the threaded rod 402 and the limiting rod 403, preventing these impurities or debris from affecting the smooth sliding of the threaded sleeve seat 404 across these surfaces. This ensures that the grinding wheel 408 can grind the PTFE-lined valve fittings stably and accurately. The cleaning brushes 406 are made of wear-resistant and durable materials to ensure they maintain good cleaning performance even after prolonged use.

[0030] In use, the PTFE-lined valve fitting is first placed on top of several sets of first rotating wheels 203 and several sets of second rotating wheels 303. When the PTFE-lined valve fitting is placed, the drive motor 204 is started to drive the first rotating rod 202 to rotate. The rotating first rotating rod 202 drives several sets of first rotating wheels 203 to rotate synchronously. The rotating first rotating wheels 203 drive the PTFE-lined valve fitting to rotate. The force of the rotating PTFE-lined valve fitting drives several sets of second rotating wheels 303 to rotate. The rotating first rotating wheels 203 cooperate with the rotating second rotating wheels 303 to drive the PTFE-lined valve fitting to rotate and flip.

[0031] When the PTFE-lined valve fitting is rotated and flipped, the servo motor 405 and the grinding motor 409 are started simultaneously. The servo motor 405 drives the lead screw 402 to rotate. The rotating lead screw 402 drives the lead sleeve seat 404 to move parallel to the surface of the lead screw 402 and the limit rod 403. The parallel movement of the lead sleeve seat 404 drives the grinding wheel 408 to move parallel. At this time, the started grinding motor 409 drives the grinding wheel 408 to rotate inside the fourth shaft frame 407. The rotating grinding wheel 408 grinds the side of the PTFE-lined valve fitting. It should be noted that due to the parallel movement of the lead sleeve seat 404, the grinding wheel 408 moves parallel to the side of the PTFE-lined valve fitting. The rotating PTFE-lined valve fitting and the grinding wheel 408 rotate relative to each other, which facilitates all-round grinding of the side of the PTFE-lined valve fitting and improves the uniformity of grinding the side of the PTFE-lined valve fitting.

[0032] While the threaded sleeve seat 404 moves in parallel, it drives two sets of cleaning brushes 406 to move in parallel on the surfaces of the threaded rod 402 and the limit rod 403. The cleaning brushes 406 are designed to clean impurities or debris adhering to the surfaces of the threaded rod 402 and the limit rod 403, preventing impurities or debris from affecting the smoothness of the sliding of the threaded sleeve seat 404 on the surfaces of the threaded rod 402 and the limit rod 403, and ensuring that the grinding wheel 408 can stably and accurately grind the PTFE-lined valve fittings. The cleaning brushes 406 are made of wear-resistant and durable materials to ensure that they can maintain a good cleaning effect during long-term use.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A side grinding device for the production of PTFE-lined valve fittings, comprising a base (1) and a grinding mechanism (4), characterized in that, The base (1) has a first flipping mechanism (2) for flipping the pipe on one side of the top, a second flipping mechanism (3) for assisting the flipping of the pipe is provided at equal intervals on the side of the base (1) close to the first flipping mechanism (2), and a grinding mechanism (4) for grinding the side of the pipe is provided on the side of the base (1) away from the first flipping mechanism (2).

2. The side grinding device for producing PTFE-lined valve fittings according to claim 1, characterized in that, The first flipping mechanism (2) includes a first shaft frame (201) installed on one side of the top of the base (1), a first rotating rod (202) is rotatably installed on the inner side of the first shaft frame (201), and a first rotating wheel (203) is equidistantly fitted on the surface of the first rotating rod (202).

3. A side grinding device for valve liner PTFE pipe production according to claim 2, characterized in that, A drive motor (204) is mounted on one side of the outer wall of the first shaft frame (201) via a mounting base. The output end of the drive motor (204) is fixedly connected to one end of the first rotating rod (202) via a shaft.

4. The side grinding device for producing PTFE-lined valve fittings according to claim 1, characterized in that, The several sets of the second flipping mechanism (3) include several sets of second shaft frames (301) installed on one side of the top of the base (1). The bottom ends of the several sets of second shaft frames (301) are all equally spaced on the side of the base (1) near the first shaft frame (201). The interior of each of the several sets of second shaft frames (301) is fixedly connected with a second rotating rod (302). The surface of each of the several sets of second rotating rods (302) is fixedly fitted with a second rotating wheel (303). One side of each of the several sets of second rotating wheels (303) is arranged opposite to one side of each of the several sets of first rotating wheels (203).

5. The side grinding device for producing PTFE-lined valve fittings according to claim 1, characterized in that, The grinding mechanism (4) includes a third shaft frame (401) installed on one side of the top of the base (1). The third shaft frame (401) is located on the side of the base (1) away from the first shaft frame (201). A lead screw (402) is rotatably installed on the inner side of the third shaft frame (401). A limit rod (403) is fixedly installed on the side of the third shaft frame (401) close to the lead screw (402). A thread sleeve seat (404) is slidably fitted on the surface of the lead screw (402) and the limit rod (403). A servo motor (405) is installed on one side of the outer wall of the third shaft frame (401) through a mounting seat. The output end of the servo motor (405) is fixedly connected to one end of the lead screw (402) through a shaft.

6. A side grinding device for valve liner PTFE pipe production according to claim 5, characterized in that, Cleaning brushes (406) are fixedly connected to both ends of the thread sleeve seat (404), and the inner surfaces of the two sets of cleaning brushes (406) are fitted onto the surfaces of the thread rod (402) and the limiting rod (403).

7. A side grinding device for valve liner PTFE pipe production according to claim 5, characterized in that, The top of the thread sleeve seat (404) is fixedly mounted with a fourth shaft frame (407), and a grinding wheel (408) is rotatably mounted on the inner side of the fourth shaft frame (407). The surface of the grinding wheel (408) is provided with sandpaper. A grinding motor (409) is fixedly mounted on one side of the outer wall of the fourth shaft frame (407) through a mounting seat. The output end of the grinding motor (409) is fixedly connected to one end of the grinding wheel (408) through a shaft.