Teflon pipeline grinding equipment
By using an L-shaped mounting plate and mounting rod, combined with a fastening plate, sealing rod, and electric telescopic rod, the problem of PTFE pipe deformation caused by traditional clamps is solved, achieving stable fixing and convenient grinding of PTFE pipes.
Patent Information
- Application Number
- CN202520515162.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Traditional clamp-type fixing equipment is prone to deformation when grinding PTFE pipes, resulting in poor grinding and fixing effect.
The L-shaped mounting plate and rotating mounting rod are tightly connected to the inner wall of the PTFE pipe through a fastening plate and sealing rod. Combined with an electric telescopic rod and a screw to adjust the position of the grinding block, the PTFE pipe can be stably fixed and easily ground.
This avoids deformation of PTFE pipes during the grinding process, improving the ease of grinding and the fixing effect.
Smart Images

Figure CN223863431U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of grinding equipment, specifically relating to a PTFE pipe grinding equipment. Background Technology
[0002] PTFE tubing, also known as polytetrafluoroethylene tubing or simply F4 tubing, is a high molecular weight polymer, commonly referred to as the "king of plastics." It is characterized by its white, waxy, translucent appearance and excellent heat and cold resistance. Its chemical formula is (C2F4)n, and it can be used continuously at temperatures ranging from -180 to 260°C.
[0003] PTFE tubing is made using high-quality plunger extrusion and a special processing technique to tightly bond the steel and plastic tubing together. Due to its special material properties, this tubing can withstand a positive pressure of 1.6 MPa and a negative pressure of 77 kPa. Therefore, it can be used normally within a temperature range of -60℃ to +260℃ and has reliable and excellent corrosion resistance.
[0004] Furthermore, PTFE tubing is also used to transport highly corrosive gases and liquids at high temperatures, a function that other pipes cannot replace. However, factors directly affecting its service life and performance stability include temperature, pressure, and the medium. Therefore, high-quality materials and advanced manufacturing processes are key to ensuring the quality of PTFE-lined products. PTFE tubing, as an inner lining of a metal pipe, is used to prevent chemical liquids from corroding the metal pipe. The PTFE tubing lining is formed by hot-melting PTFE powder into the pipe body. However, the hot-melt-processed PTFE tubing has many protrusions at the pipe ends, thus requiring grinding of the PTFE tubing ends of straight-through pipes.
[0005] Currently, before grinding PTFE pipes, it is necessary to use fixing equipment to keep them stable during the grinding process. However, most traditional fixing equipment is a clamping plate structure. The squeezing force generated by the clamping plate can cause deformation of the PTFE pipe, resulting in poor grinding and fixing effect. Utility Model Content
[0006] (1) Technical problems to be solved
[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a PTFE pipe grinding equipment. This PTFE pipe grinding equipment aims to solve the technical problem that the extrusion pressure generated by the clamping plate in the existing technology will cause the PTFE pipe to deform, resulting in poor grinding and fixing effect of the PTFE pipe.
[0008] (2) Technical solution
[0009] To solve the above-mentioned technical problems, this utility model provides a PTFE pipe polishing device, which includes an L-shaped mounting plate and a mounting rod rotatably disposed in the mounting plate. Fastening plates are arranged in a circular array on both sides of the outer wall of the mounting rod, and pistons are slidably inserted into both sides of the inner wall of the mounting rod. Baffles are threaded into both ends of the mounting rod. Sealing rods that fit and are inserted into the mounting rod are fixed on both sides of the inner wall of the fastening plates. A polishing block is adjustablely disposed at the top of the mounting plate.
[0010] When using this technical solution, fastening plates are arranged in a ring array on both sides of the outer wall of the mounting rod. Before grinding, the PTFE pipe is fitted onto the mounting rod. Two first electric telescopic rods in the mounting rod drive pistons to move towards each other. During the movement of the pistons, air is forced through the telescopic groove to compress the sealing rod. The sealing rod causes the fastening plates to be tightly connected to the inner wall of the PTFE pipe. After fixing, the baffle is tightly connected to the side wall of the PTFE pipe by rotating the handle, which facilitates the positioning of the PTFE pipe by squeezing from the inner wall and avoids deformation of the PTFE pipe due to compression during grinding. A sliding groove is opened at the bottom of the mounting plate, which is rotated by a knob on the lead screw. During the rotation of the lead screw, the position of the grinding seat is adjusted through the sliding part. After adjustment, the second electric telescopic rod drives the grinding block to contact the outer wall of the PTFE pipe, which facilitates the adjustment of the position of the grinding block and improves the convenience of grinding different positions of the PTFE pipe.
[0011] Preferably, a motor connected to the mounting rod is fixed to the side wall of the mounting plate, and a sliding groove is provided at the bottom end of the mounting plate.
[0012] Furthermore, a first electric telescopic rod is fixed to both sides of the inner wall of the mounting rod, and the two electric telescopic rods are respectively fixedly connected to two pistons.
[0013] Furthermore, both ends of the mounting rod are provided with through holes, and the inner wall of the mounting rod is provided with a telescopic groove.
[0014] Furthermore, the sealing rod is tightly inserted into the telescopic groove, and the sealing rod abuts against the inner wall of the telescopic groove; handles are symmetrically fixed to the side walls of the baffle.
[0015] Furthermore, a lead screw is rotatably mounted in the groove, a grinding seat is slidably mounted on the top of the lead screw, and the bottom end of the grinding block is fitted into the grinding seat.
[0016] Furthermore, the bottom end of the grinding base is fixed with a sliding part that is threadedly connected to the lead screw, and a second electric telescopic rod connected to the grinding block is fixed in the grinding base.
[0017] (3) Beneficial effects
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This invention features fastening plates arranged in a ring array on both sides of the outer wall of the mounting rod. Before grinding, the PTFE pipe is fitted onto the mounting rod. Two first electric telescopic rods in the mounting rod drive pistons to move towards each other. During the movement of the pistons, air is forced through the telescopic groove to compress the sealing rod. The sealing rod causes the fastening plates to be tightly connected to the inner wall of the PTFE pipe. After fixing, the baffle is tightly connected to the side wall of the PTFE pipe by rotating the handle, which facilitates the positioning of the PTFE pipe by squeezing from the inner wall and avoids the PTFE pipe from being deformed by squeezing during the grinding process.
[0020] By opening a groove at the bottom of the mounting plate, the screw is rotated by a knob on the screw rod. During the rotation, the position of the grinding seat is adjusted by the sliding part of the screw rod. After adjustment, the grinding block is brought into contact with the outer wall of the PTFE pipe by the second electric telescopic rod, which facilitates the adjustment of the position of the grinding block and improves the convenience of grinding different positions of the PTFE pipe. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0024] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A;
[0025] Figure 4 This is a cross-sectional view of the grinding seat in this utility model.
[0026] The labels in the attached diagram are as follows: 1. Mounting plate; 2. Slide groove; 3. Grinding seat; 4. Lead screw; 5. Baffle; 6. Mounting rod; 7. Fastening plate; 9. First electric telescopic rod; 10. Piston; 11. Telescopic groove; 12. Sealing rod; 13. Handle; 14. Through hole; 15. Grinding block; 16. Sliding part; 17. Second electric telescopic rod. Detailed Implementation
[0027] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] This specific embodiment is a PTFE pipe polishing device, the structural schematic diagram of which is shown below. Figure 1 and Figure 3 As shown, the PTFE pipe polishing equipment includes an L-shaped mounting plate 1 and a mounting rod 6 rotatably mounted in the mounting plate 1. Fastening plates 7 are arranged in a ring array on both sides of the outer wall of the mounting rod 6, and pistons 10 are slidably inserted into both sides of the inner wall of the mounting rod 6. Baffles 5 are threaded into both ends of the mounting rod 6. Sealing rods 12 that fit into the mounting rod 6 are fixed on both sides of the inner wall of the fastening plates 7. A polishing block 15 is adjustablely mounted on the top of the mounting plate 1.
[0029] A motor connected to the mounting rod 6 is fixed to the side wall of the mounting plate 1, and a sliding groove 2 is opened at the bottom end of the mounting plate 1. The first electric telescopic rod 9 is fixed to both sides of the inner wall of the mounting rod 6. The two electric telescopic rods are respectively fixedly connected to the two pistons 10. Through holes 14 are opened at both ends of the mounting rod 6, and telescopic grooves 11 are opened on the inner wall of the mounting rod 6. The two first electric telescopic rods 9 in the mounting rod 6 drive the pistons 10 to move towards each other. During the movement of the pistons 10, air is squeezed through the telescopic grooves 11 to compress the sealing rod 12. The sealing rod 12 drives the fastening plate 7 to be tightly connected to the inner wall of the PTFE pipe. After being fixed, the baffle 5 is tightly connected to the side wall of the PTFE pipe by rotating the handle 13.
[0030] like Figure 2 and Figure 4 As shown, the sealing rod 12 is tightly inserted into the telescopic groove 11, and the sealing rod 12 abuts against the inner wall of the telescopic groove 11. The side wall of the baffle 5 is symmetrically fixed with handles 13. The slide groove 2 is rotatably provided with a lead screw 4. The top of the lead screw 4 is slidably provided with a grinding seat 3. The bottom end of the grinding block 15 is fitted into the grinding seat 3. The bottom end of the grinding seat 3 is fixed with a sliding part 16 that is threadedly connected to the lead screw 4. The grinding seat 3 is fixed with a second electric telescopic rod 17 that is connected to the grinding block 15. The knob on the lead screw 4 drives it to rotate. During the rotation of the lead screw 4, the position of the grinding seat 3 is adjusted through the sliding part 16. After adjustment, the grinding block 15 is driven to contact the outer wall of the PTFE pipe through the second electric telescopic rod 17.
[0031] Working principle: When using the device of this technical solution, the PTFE pipe is fitted onto the mounting rod 6 for grinding. The two first electric telescopic rods 9 in the mounting rod 6 drive the piston 10 to move towards each other. During the movement of the piston 10, air is forced through the telescopic groove 11 to compress the sealing rod 12. The sealing rod 12 drives the fastening plate 7 to be tightly connected to the inner wall of the PTFE pipe. After fixing, the baffle 5 is rotated by the handle 13 to be tightly connected to the side wall of the PTFE pipe, and the pipe is positioned by being squeezed from the inner wall. After positioning, the motor is started to drive the mounting rod 6 and the PTFE pipe to rotate for grinding. The knob on the lead screw 4 is held to rotate it. During the rotation of the lead screw 4, the position of the grinding seat 3 is adjusted through the sliding part 16. After adjustment, the second electric telescopic rod 17 drives the grinding block 15 to contact the outer wall of the PTFE pipe, which facilitates the adjustment of the position of the grinding block 15 and improves the convenience of grinding different positions of the PTFE pipe.
[0032] All technical features in this embodiment can be freely combined according to actual needs.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A PTFE pipe polishing device, comprising an L-shaped mounting plate (1) and a mounting rod (6) rotatably disposed in the mounting plate (1), characterized in that, The outer walls of the mounting rod (6) are arranged in a ring array with fastening plates (7) on both sides, and pistons (10) are slidably inserted into both sides of the inner walls of the mounting rod (6). Both ends of the mounting rod (6) are threaded with baffles (5). Both sides of the inner walls of the fastening plates (7) are fixed with sealing rods (12) that fit into the mounting rod (6). The top of the mounting plate (1) is adjustablely provided with a grinding block (15).
2. The PTFE pipe polishing equipment according to claim 1, characterized in that, The mounting plate (1) has a motor fixed to its side wall and connected to the mounting rod (6), and a groove (2) is provided at the bottom end of the mounting plate (1).
3. The PTFE pipe polishing equipment according to claim 1, characterized in that, The first electric telescopic rod (9) is fixed on both sides of the inner wall of the mounting rod (6), and the two electric telescopic rods are respectively fixedly connected to the two pistons (10).
4. The PTFE pipe polishing equipment according to claim 3, characterized in that, Both ends of the mounting rod (6) are provided with through holes (14), and the inner wall of the mounting rod (6) is provided with a telescopic groove (11).
5. The PTFE pipe polishing equipment according to claim 4, characterized in that, The sealing rod (12) is tightly inserted into the telescopic groove (11), and the sealing rod (12) abuts against the inner wall of the telescopic groove (11). The side wall of the baffle (5) is symmetrically fixed with handles (13).
6. The PTFE pipe polishing equipment according to claim 2, characterized in that, A lead screw (4) is rotatably arranged in the slide groove (2), and a grinding seat (3) is slidably arranged at the top of the lead screw (4). The bottom end of the grinding block (15) is fitted into the grinding seat (3).
7. The PTFE pipe polishing equipment according to claim 6, characterized in that, The bottom end of the grinding seat (3) is fixed with a sliding part (16) that is threadedly connected to the lead screw (4), and a second electric telescopic rod (17) that is connected to the grinding block (15) is fixed in the grinding seat (3).