A tempering device for PFA tubes

By designing a tempering device with multiple through holes and a fixed plunger, the problem that existing devices can only temper a single PFA tube was solved, enabling simultaneous tempering of multiple tubes and improving processing efficiency and fixing reliability.

CN224940648UActive Publication Date: 2026-11-06ZHEJIANG HESHENG FLUOROPLASTICS CO LTD
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Patent Information

Application Number
CN202521618272.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-31
Publication Date
2026-11-06
Estimated Expiration
2035-07-31

AI Technical Summary

Technical Problem

Existing PFA pipe processing equipment can only clamp one pipe for tempering, resulting in low processing efficiency and long working time.

Method used

A tempering device comprising a pushing mechanism, a fixing mechanism, and a clamping mechanism was designed. By setting multiple first through holes and fixing plungers on the moving seat, multiple PFA tubes can be fixed simultaneously, and multiple tubes can be tempered simultaneously by means of limiting parts and guide rings.

Benefits of technology

It improves the processing efficiency of PFA tubes, enables simultaneous tempering of multiple tubes, ensures reliable fixing, stable structure, and shorter processing time.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a tempering device for PFA pipes, belonging to the field of PFA pipe processing technology. The tempering device for PFA pipes includes a main body, which comprises a pushing mechanism, a fixing mechanism, a clamping mechanism, and a tempering box. The pushing mechanism includes a pushing base, on which a first hydraulic cylinder is fixed. A pushing disc is fixed on the first hydraulic cylinder, and the pushing disc is equipped with a plurality of fixed plungers for connecting to the inner bore of the PFA pipe. The fixing mechanism includes a fixed base, on which a first guide rail is provided. A moving trolley is slidably connected to the first guide rail, and a moving seat is fixed on the moving trolley. The moving seat has a plurality of first through holes matching the number of fixed plungers for inserting pipe fittings. Each fixed plunger and its corresponding first through hole are located on the same axis. This utility model has the advantage of faster processing efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of PFA pipe processing technology, specifically a tempering device for PFA pipes. Background Technology

[0002] PFA (a copolymer of tetrafluoroethylene and perfluorovinyl ether) is a fluoropolymer with excellent melt processing characteristics and chemical corrosion resistance, comparable to PTFE. PFA also possesses good high-temperature strength and stiffness, as well as excellent resistance to stress cracking. Currently, processing PFA tubes requires quenching and tempering at the ends. This typically involves a pushing device to clamp the PFA tube and push it into a tempering chamber. However, existing devices can only clamp one PFA tube at a time for tempering, resulting in slow processing efficiency and long processing times. Summary of the Invention

[0003] The purpose of this utility model is to address the aforementioned problems in existing technologies and propose a solution. A tempering device for PFA with the advantage of faster processing efficiency.

[0004] The objective of this utility model can be achieved through the following technical solution: A tempering device for PFA, comprising a device body, the device body including a pushing mechanism, a fixing mechanism, a clamping mechanism and a tempering box; The pushing mechanism includes a pushing seat, a first hydraulic cylinder fixed on the pushing seat, a pushing disc fixed on the first hydraulic cylinder, and a plurality of fixed plungers for connecting with the inner hole of the PFA pipe installed on the pushing disc; The fixing mechanism includes a fixed base, on which a first guide rail is provided. A movable trolley is slidably connected to the first guide rail. A movable seat is fixed on the movable trolley. The movable seat has a plurality of first through holes that match the number of fixed plungers and are used for inserting pipe fittings. Each fixed plunger and its corresponding first through hole are located on the same axis. The clamping mechanism includes a clamping frame located at the top, a second guide rail mounted on the clamping frame, a sliding seat slidably mounted on the second guide rail, a lifting motor mounted on the sliding seat, and a mechanical gripper for clamping and removing the pipe fitting fixed on the lifting rod of the lifting motor; a push seat is connected to the left side of the fixed base, and a tempering box is connected to its right side, with a feed port on the side of the tempering box near the pipe fitting for feeding.

[0005] Preferably, the pushing direction of the fixed plunger on the pushing plate is parallel to the moving direction of the pipe.

[0006] Preferably, the fixed plunger has a limiting portion on the side near the pipe fitting, and the outer diameter of the limiting portion is equal to the diameter of the pipe fitting.

[0007] Preferably, the end of the limiting part is also fitted with a rubber pad.

[0008] Preferably, the movable seat has a first guide ring on the side near the fixed plunger that matches the number of fixed plungers.

[0009] Preferably, the movable seat has a second guide ring on the side near the tempering box that matches the number of fixed plungers.

[0010] Preferably, a temperature detector is installed on the top of the inlet of the tempering box to detect the temperature of the pipe directly below it.

[0011] Compared with the prior art, the advantages of this utility model are: by adding multiple first through holes and a fixing plunger that can further limit and fix the pipes on the moving seat, it is beneficial to perform tempering operations on multiple pipes at the same time, which improves the processing efficiency and makes the processing faster; at the same time, by setting the fixing plunger and inserting it into the pipe hole, it is beneficial to better fix the pipes, making the fixing of the pipes convenient, reliable, and structurally stable. Attached Figure Description

[0012] Figure 1 This is a front view of the present invention.

[0013] Figure 2 This is a partial sectional view of the pushing mechanism and the fixing mechanism in this utility model.

[0014] Figure 3 This is a side view of the fixing mechanism and clamping mechanism in this utility model.

[0015] Figure 4 This is an enlarged view of point A in this utility model.

[0016] In the figure, 21 is the pusher seat; 22 is the first hydraulic cylinder; 23 is the push plate; 24 is the fixed plunger; 241 is the limiting part; 242 is the rubber pad; 31 is the fixed base; 32 is the first guide rail; 33 is the moving trolley; 34 is the moving seat; 35 is the first through hole; 41 is the clamping frame; 42 is the second guide rail; 43 is the sliding seat; 44 is the lifting motor; 45 is the mechanical gripper; 5 is the tempering box; 6 is the first guide ring; 7 is the second guide ring; and 8 is the temperature detector. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 4 As shown, a tempering device for PFA includes a device body, which includes a pushing mechanism, a fixing mechanism, a clamping mechanism, and a tempering box 5. The pushing mechanism includes a pushing seat 21, a first hydraulic cylinder 22 fixed on the pushing seat 21, a pushing disc 23 fixed on the first hydraulic cylinder 22, and a plurality of fixed plungers 24 for connecting with the inner hole of the PFA pipe installed on the pushing disc 23; The fixing mechanism includes a fixed base 31, a first guide rail 32 is provided on the fixed base 31, a movable trolley 33 is slidably connected to the first guide rail 32, a movable seat 34 is fixed on the movable trolley 33, and a plurality of first through holes 35 are provided on the movable seat 34, which are matched with the number of fixed plungers 24 and are used for passing through pipes; each fixed plunger 24 and its corresponding first through hole 35 are located on the same axis. The clamping mechanism includes a clamping frame 41 located at the top, a second guide rail 42 mounted on the clamping frame 41, a sliding seat 43 slidably mounted on the second guide rail 42, a lifting motor 44 mounted on the sliding seat 43, and a mechanical gripper 45 for clamping and removing the pipe fitting fixed on the lifting rod of the lifting motor 44; a push seat 21 is connected to the left side of the fixed base 31, and a tempering box 5 is connected to its right side. The tempering box 5 has a feed port on the side near the pipe fitting for feeding.

[0019] In this invention, the mechanical gripper 45 is existing technology, and a controller for controlling the mechanical gripper 45 is installed on one side of the mechanical gripper 45.

[0020] The pushing direction of the fixed plunger 24 on the pushing disk 23 is parallel to the moving direction of the pipe.

[0021] Using the above structure, the moving trolley 33 is moved to the left side of the fixed base 31. The mechanical grippers 45 on the clamping mechanism clamp and fix the pipe. At the same time, the moving trolley 33 moves to the right, inserting the pipes one by one into the first through holes 35 of the moving base 34 and passing through the first through holes 35 of the moving base 34. Then, the piston rod of the first hydraulic cylinder 22 moves to the right, driving the fixed plunger 24 on the push plate 23 to move closer to the pipe. Since each fixed plunger 24 and its corresponding first through hole 35 are located on the same axis, the fixed plunger 24 can be inserted into the pipe hole, allowing for further... Good fixing and limiting prevent the pipe fittings from shifting position. Then, the moving trolley 33 continues to move to the right, feeding several pipe fittings from the feed port of the tempering box 5 into the tempering box 5 for tempering operation. This structure is designed by adding multiple first through holes 35 and fixing plungers 24 to the moving seat 34 to further limit and fix the pipe fittings. This facilitates the simultaneous tempering operation of multiple pipe fittings, improving processing efficiency. At the same time, by setting the fixing plungers 24 and inserting them into the pipe fitting holes, it is easier to fix the pipe fittings, making the fixing reliable and the structure stable.

[0022] Specifically, such as Figures 1 to 4 As shown, the fixed plunger 24 has a limiting part 241 on the side near the pipe fitting, and the outer diameter of the limiting part 241 is equal to the diameter of the pipe fitting.

[0023] The above structure, with the setting of the limiting part 241, facilitates the limiting of the pipe fitting.

[0024] like Figures 1 to 4 As shown, a rubber pad 242 is also sleeved on the end of the limiting part 241. By setting the rubber pad 242, after being inserted into the pipe hole, the rubber pad 242 has a large friction with the inner wall of the pipe hole, which helps to prevent the pipe from falling off the limiting plunger, and helps to better limit the pipe, resulting in a better limiting effect.

[0025] like Figures 1 to 4 As shown, the movable seat 34 has a first guide ring 6 on the side near the fixed plunger 24, which matches the number of fixed plungers 24. By providing the first guide ring 6, the pipe can be guided when it passes through the movable seat 34.

[0026] like Figures 1 to 4 As shown, the movable seat 34 has a second guide ring 7 on the side near the tempering box 5, which matches the number of fixed plungers 24. By providing the second guide ring 7, the pipe can be guided when it passes through the movable seat 34.

[0027] In this invention, the temperature detector 8 is a prior art device, which is a detector with a display screen and can read temperature values.

[0028] like Figures 1 to 4 As shown, a temperature detector 8 is installed at the top of the inlet of the tempering box 5 to detect the temperature of the pipe directly below it. By setting up the temperature detector 8, it is beneficial to detect the real-time temperature of the pipe below it, making observation and detection easier.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the word "and / or" throughout the text means including three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0031] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0032] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A tempering apparatus for PFA pipes, comprising a main body, characterized in that, The main body of the device includes a pushing mechanism, a fixing mechanism, a clamping mechanism, and a tempering box (5); The pushing mechanism includes a pushing seat (21), a first hydraulic cylinder (22) is fixed on the pushing seat (21), a pushing disc (23) is fixed on the first hydraulic cylinder (22), and a plurality of fixed plungers (24) for connecting with the inner hole of the PFA pipe are installed on the pushing disc (23). The fixing mechanism includes a fixed base (31), on which a first guide rail (32) is provided, and a moving trolley (33) is slidably connected to the first guide rail (32). A moving seat (34) is fixed on the moving trolley (33), and a plurality of first through holes (35) matching the number of fixed plungers (24) are provided on the moving seat (34) for inserting pipe fittings. Each fixed plunger (24) and its corresponding first through hole (35) are located on the same axis. The clamping mechanism includes a clamping frame (41) located at the top, a second guide rail (42) is installed on the clamping frame (41), a sliding seat (43) is slidably arranged on the second guide rail (42), a lifting motor (44) is installed on the sliding seat (43), and a mechanical gripper (45) for clamping and removing the pipe is fixed on the lifting rod of the lifting motor (44); a push seat (21) is connected to the left side of the fixed base (31), and a tempering box (5) is connected to its right side. The tempering box (5) has a feed port on the side near the pipe for feeding.

2. The tempering apparatus for PFA pipes according to claim 1, characterized in that, The pushing direction of the fixed plunger (24) on the push plate (23) is parallel to the moving direction of the pipe.

3. A tempering device for PFA pipes according to claim 1, characterized in that, The fixed plunger (24) has a limiting part (241) on the side near the pipe fitting, the outer diameter of the limiting part (241) being equal to the diameter of the pipe fitting.

4. A tempering device for PFA pipes according to claim 3, characterized in that, The end of the limiting part (241) is also fitted with a rubber pad (242).

5. A tempering device for PFA pipes according to claim 1, characterized in that, The movable seat (34) has a first guide ring (6) on the side near the fixed plunger (24) that matches the number of fixed plungers (24).

6. A tempering apparatus for PFA pipes according to claim 1, characterized in that, The movable seat (34) has a second guide ring (7) on the side near the tempering box (5) that matches the number of fixed plungers (24).

7. A tempering apparatus for PFA pipes according to claim 1, characterized in that, A temperature detector (8) is installed on the top of the feed inlet of the tempering box (5) to detect the temperature of the pipe directly below it.