Plasma processing equipment

By designing an adjustable clamping device and rail-guided nozzle movement in the plasma treatment equipment, the problems of low efficiency and poor uniformity of existing equipment are solved, and efficient and uniform medical catheter processing is achieved, which is suitable for pipes of various lengths and high-cleanliness environments.

CN223407464UActive Publication Date: 2025-10-03CARDIOLINK SCI (SHENZHEN) MEDICAL TECH DEV CO LTD
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Patent Information

Application Number
CN202422849336.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-10-03
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

Existing plasma processing equipment has low efficiency and is difficult to uniformly process medical catheters. In addition, handheld operation is inconvenient and it is difficult to ensure uniform rotation and port distance, resulting in slow processing speed.

Method used

A plasma processing device is designed, which includes a frame, first and second plasma nozzles, and a clamping module for clamping pipes. The nozzles can move axially on both sides of the clamping module. The clamping device is adjustable, and the guide rail guides the movement of the nozzles. Combined with a drive device and a control module, efficient and uniform processing can be achieved.

Benefits of technology

It achieves efficient and uniform processing of medical catheters, adapts to pipes of different lengths, improves operational convenience and processing speed, and is suitable for high-cleanliness environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides plasma processing equipment which comprises a rack, the rack is provided with a first plasma module, a second plasma module and a clamping module used for clamping a pipe fitting, the first plasma module comprises a first plasma spray head, and the second plasma module comprises a second plasma spray head; the first plasma spray head and the second plasma spray head are located on the two sides of the clamping module correspondingly and can axially move on the two radial sides of the clamped pipe. The first plasma nozzle and the second plasma nozzle are located on the two sides of the clamping module correspondingly, the first plasma nozzle and the second plasma nozzle are located on the two opposite sides of the pipe correspondingly, and the first plasma nozzle and the second plasma nozzle can move in the axial direction of the clamped pipe. The first plasma spray head and the second plasma spray head can treat the pipe from the two sides of the pipe at the same time, different positions of the pipe are treated in the axial direction of the pipe, and efficient and uniform treatment on the pipe is achieved.
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Description

Technical Field

[0001] The present application relates to the field of medical catheter production equipment, and in particular, to a plasma processing equipment. Background Art

[0002] Medical catheter materials commonly used in clinical practice are mostly medical polymers. However, most polymers are non-polar and have a weak surface boundary layer. When applied to surfaces, these polymers have low interfacial bonding strength, making it difficult to achieve a significant bond strength with adhesives. Low-temperature plasma treatment involves exposing sample materials to a plasma of a non-polymerizing gas (Ar, H2, N2, CO, NH3, O2, etc.). The plasma bombards the sample surface, introducing new functional groups or altering the polymer chain structure upon contact with air, thereby improving the sample's surface properties, such as hydrophilicity, adhesion, and biocompatibility.

[0003] However, existing plasma treatment equipment is inefficient, takes a long time to process, and requires segmented processing when treating long pipes. Handheld plasma machines require the pipe to rotate at a constant speed, but this cannot be guaranteed. The distance between the plasma machine port and the pipe end face cannot be guaranteed, and the small cross-section of the pipe makes operation and observation difficult, resulting in slow and inefficient plasma treatment. Utility Model Content

[0004] The purpose of this application is to provide a plasma processing device that has both high processing efficiency and can perform relatively uniform processing.

[0005] The embodiment of the present application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a plasma processing device, comprising a frame, wherein the frame is provided with a first plasma module, a second plasma module and a clamping module for clamping a pipe, wherein the first plasma module includes a first plasma nozzle, and the second plasma module includes a second plasma nozzle; the first plasma nozzle and the second plasma nozzle are respectively located on both sides of the clamping module and can move axially on both radial sides of the clamped pipe.

[0007] In the above technical solution, the first plasma nozzle and the second plasma nozzle are respectively located on both sides of the clamping module. After the clamping module clamps the pipe, the first plasma nozzle and the second plasma nozzle are respectively located on two opposite sides of the pipe in the radial direction. Since the first plasma nozzle and the second plasma nozzle can also move along the axial direction of the clamped pipe, the first plasma nozzle and the second plasma nozzle can simultaneously process the pipe from both sides of the pipe and process different positions of the pipe along the axial direction of the pipe, thereby achieving more efficient and uniform treatment of the pipe.

[0008] In some optional embodiments, the clamping module includes two clamping devices, and the distance between the two clamping devices is adjustable to respectively clamp the two ends of the pipe.

[0009] In the above technical solution, by providing two clamping devices, the pipe can be clamped from both ends of the pipe, and since the distance between the clamping devices is adjustable, it can be applied to pipes of different lengths.

[0010] In some optional embodiments, the clamping device includes a mounting plate and clamping members arranged side by side on one side of the mounting plate, and the mounting plate is connected to the frame; the clamping member in one clamping device is used to clamp one end of the pipe, and the clamping member in the other clamping device is used to clamp the other end of the pipe, and the first plasma nozzle and the second plasma nozzle are respectively located on both sides of the mounting plate and are located between the two mounting plates in the axial direction of the clamped pipe.

[0011] In the above technical solution, the mounting plate is provided with clamping members arranged side by side. That is, the number of clamping members can be multiple, capable of simultaneously clamping multiple pipes, thereby enabling the treatment of multiple pipes. Because the first plasma jet and the second plasma jet are located on opposite sides of the mounting plate, treatment can be performed from radially opposite sides of the pipe.

[0012] In some optional embodiments, at least one of the clamping devices is slidably disposed on the frame and is further connected to a locking device to fix the clamping device relative to the frame.

[0013] In the above technical solution, the clamping devices are slidably mounted on the frame, which facilitates adjustment of the distance between the two clamping devices, thereby accommodating pipes of different lengths. The clamping devices are fixed to the frame by a locking device, which prevents the clamping devices from moving during the pipe processing process.

[0014] In some optional embodiments, the locking device includes a threaded fastener threadedly connected to the mounting plate, and one end of the threaded fastener can abut against the frame.

[0015] In the above technical solution, the threaded fastener is threadedly connected to the mounting plate and one end can abut against the frame. Therefore, by tightening the threaded fastener, the force between the threaded fastener and the frame can be large and relative displacement is difficult to occur, thereby fixing the clamping device to the frame.

[0016] In some optional embodiments, the first plasma module includes a first guide rail, which is located on one side of the two clamping devices and extends from one clamping device to the other clamping device; the first plasma nozzle can slide along the extension direction of the first guide rail.

[0017] In the above technical solution, a first guide rail extending from one clamping device to the other clamping device is provided, and the first plasma nozzle can slide along the first guide rail. Therefore, when the two clamping devices respectively clamp the two ends of the pipe, the first plasma nozzle slides along the first guide rail, so that different areas of the pipe in the axial direction can be continuously processed, thereby improving the processing efficiency and making the processing of the pipe more uniform.

[0018] In some optional embodiments, the first plasma module further includes a second guide rail slidably connected to the first guide rail, and a relative sliding direction is parallel to an extension direction of the first guide rail; the second guide rail extends in a direction perpendicular to the mounting plate; the first plasma nozzle is slidably disposed on the second guide rail, and a relative sliding direction is parallel to an extension direction of the second guide rail.

[0019] In this technical solution, since the first plasma shower head is mounted on the second guide rail, which slides relative to the first guide rail, the first plasma shower head and the second guide rail can move together along the extension direction of the first guide rail, allowing the first plasma shower head to process the pipe. Since the second guide rail extends perpendicular to the mounting plate and the first plasma shower head slides relative to the second guide rail, the distance between the first plasma shower head and the pipe to be processed can be adjusted. This technical solution enables continuous processing of multiple pipes, achieving high processing efficiency.

[0020] In some optional embodiments, the first plasma module further includes a first drive device and a second drive device; the first drive device is transmission-connected to the second guide rail so that the second guide rail slides along the first guide rail; the second drive device is connected to the first plasma nozzle to drive the plasma nozzle to move along the second guide rail.

[0021] In the above technical solution, the first drive device can drive the second guide rail to drive the first plasma jet head to move along the first guide rail to process different positions on the pipe axis. The second drive device can drive the first plasma jet head to move along the second guide rail to move closer to or away from the pipe to be processed.

[0022] In some optional embodiments, a control module is further included, and the control module signals are connected to the first driving device, the second driving device, the first plasma shower head, and the second plasma shower head.

[0023] In the above technical solution, by connecting the first drive device, the second drive device, the first plasma nozzle and the second plasma nozzle through the control module signal, the movement process and working process of the first plasma nozzle can be controlled, so that the process of processing the pipe is more accurate and controllable.

[0024] In some optional embodiments, the first plasma module further includes a dust collection head fixedly connected to the first plasma nozzle.

[0025] In the above technical solution, the particles generated during the treatment process can be sucked away by providing a dust collector head. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of the front structure of a plasma processing device provided in an embodiment of the present application;

[0028] Figure 2 A schematic side view of the structure of the plasma processing equipment provided in an embodiment of the present application.

[0029] Icons: 110 - first guide rail; 120 - second guide rail; 130 - first plasma nozzle; 140 - second driving device; 210 - second plasma nozzle; 310 - clamping device; 311 - clamping member; 320 - traction device; 400 - frame; 500 - control panel. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] In the description of this application, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0035] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0036] The present application embodiment provides a plasma processing device for processing medical catheters (hereinafter referred to as pipes), such as Figure 1 and Figure 2 As shown, the apparatus includes a frame 400, which is equipped with a first plasma module, a second plasma module, and a clamping module for clamping a pipe. The first plasma module, the second plasma module, and the clamping module are all mounted on the frame 400. The clamping module is used to clamp a workpiece, and the first and second plasma modules are used to process the workpiece clamped by the clamping module.

[0037] Furthermore, the first plasma module includes a first plasma nozzle 130, and the second plasma module includes a second plasma nozzle 210. The first plasma nozzle 130 and the second plasma nozzle 210 are respectively located on both sides of the clamping module, and can move axially on both radial sides of the clamped pipe to process different axial positions of the pipe from both sides of the pipe at the same time, thereby improving the processing efficiency and enabling the pipe to be processed more evenly.

[0038] In some embodiments, the clamping module includes two clamping devices 310, each clamping the ends of the pipe. It should be understood that the clamping devices 310 are used to clamp the pipe at its ends, rather than the middle. Therefore, the first plasma jet 130 and the second plasma jet 210 can continuously process the pipe from one end to the other. Furthermore, the distance between the two clamping devices 310 is adjustable. Therefore, by adjusting the distance between the two clamping devices 310, pipes of varying lengths can be clamped, enabling processing of pipes of various lengths.

[0039] In other embodiments, the clamping module may include only one clamping device 310. In this embodiment, the clamping module only clamps one end of the pipe, allowing the other end of the pipe to droop under the action of gravity. Furthermore, in this embodiment, the first plasma shower head 130 and the second plasma shower head 210 can move vertically on both sides of the pipe in the radial direction to treat different axial positions of the pipe.

[0040] Furthermore, in embodiments where the clamping module includes two clamping devices 310, the two clamping devices 310 can be arranged horizontally, i.e., the pipe is clamped horizontally between the two clamping devices 310. Alternatively, the two clamping devices 310 can be arranged vertically, with the pipe clamped vertically between the two clamping devices 310. Accordingly, in embodiments where the pipe is clamped horizontally, the first plasma shower head 130 and the second plasma shower head 210 can be arranged vertically opposite each other; in embodiments where the pipe is clamped vertically, the first plasma shower head 130 and the second plasma shower head 210 can be arranged horizontally opposite each other. It is readily understood that since the first plasma shower head 130 and the second plasma shower head 210 are arranged opposite each other, they can each process 180° of the pipe's surface, ensuring uniform plasma treatment around the pipe's surface.

[0041] In some embodiments, the clamping device 310 includes a mounting plate and clamping members 311 arranged side by side on one side of the mounting plate. It is not difficult to understand that one side of the mounting plate should be provided with multiple clamping members 311 arranged side by side. The mounting plate is connected to the frame 400. The clamping members 311 are used to directly clamp the pipe. The clamping members 311 in one clamping device 310 are used to clamp one end of the pipe, and the clamping members 311 in another clamping device 310 are used to clamp the other end of the pipe. The clamping members 311 in one clamping device 310 and the clamping members 311 in another clamping device 310 form a group, and a group of clamping members 311 is used to clamp the two ends of the same pipe. Furthermore, there can be 8, 10, 12, or more groups of clamping members 311.

[0042] In some embodiments, the clamping member 311 can be implemented as an existing clamp that uses the elasticity of a spring to achieve clamping. In other embodiments, the clamping member 311 can also be a fixed clamp that is compressed by a connecting rod mechanism.

[0043] Furthermore, the first plasma shower head 130 and the second plasma shower head 210 are mounted on either side of the mounting plate, and are positioned between the two mounting plates in the axial direction of the clamped pipe to process the clamped pipe. Since the first plasma shower head 130 and the second plasma shower head 210 are mounted on either side of the mounting plate, the clamped pipe can be processed from both sides.

[0044] In some embodiments, at least one clamping device 310 is slidably disposed on the frame 400. Since the clamping device 310 is slidably disposed on the frame 400, the distance between the two clamping devices 310 can be easily adjusted to accommodate pipes of different lengths.

[0045] The slidable arrangement of the clamping device 310 on the frame 400 includes a case where a specific sliding direction exists, such as where the clamping device 310 and the frame 400 are connected via a guide rail-like structure to achieve relative sliding along a fixed direction. The slidable arrangement of the clamping device 310 on the frame 400 also includes a case where no specific sliding direction exists, such as where the clamping device 310 and the frame 400 are in surface contact, and the relative sliding direction between the two is not restricted.

[0046] For example, in some embodiments, only one clamping device 310 can slide on the frame 400; in other embodiments, both clamping devices 310 can slide on the frame 400. When one clamping device 310 is fixed, the fixed clamping device 310 can be used as a positioning reference for positioning the first plasma spray head 130 and the second plasma spray head 210 during the processing. Figure 2 As shown, the slidable clamping device 310 can also be connected to the traction device 320, and the sliding of the clamping device 310 is achieved through the traction device 320.

[0047] Furthermore, in some embodiments, the slidable clamping device 310 is also connected to a locking device, which fixes the clamping device 310 relative to the frame 400 to prevent the clamping device 310 from sliding during the processing of the pipe and causing the pipe to bend or stretch, thereby avoiding adverse effects on the processing of the pipe.

[0048] In some embodiments, the locking device includes a threaded fastener threadedly connected to the mounting plate, and one end of the threaded fastener can abut against the rack 400. It is easy to understand that the distance between the end of the threaded fastener and the rack 400 can be changed by rotating the threaded fastener. After the threaded fastener is tightened until the end contacts the rack 400, further tightening the threaded fastener can increase the force between the threaded fastener and the rack 400, making it difficult for the rack 400 and the clamping device 310 to move relative to each other, thereby achieving the fixation of the clamping device 310 to the rack 400.

[0049] In order to realize the movement of the first plasma jet head 130 so as to process different positions in the axial direction of the pipe, in some embodiments, the first plasma module includes a first guide rail 110, which is located on one side of the two clamping devices 310 and extends from one clamping device 310 to the other clamping device 310 to form a plurality of cylindrical portions. Figure 1For example, the first guide rail 110 extends horizontally from left to right. The first plasma shower head 130 can slide along the extension direction of the first guide rail 110. It is readily understood that the extension direction of the first guide rail 110 is substantially parallel to the axial direction of the clamped pipe. As the first plasma shower head 130 slides along the extension direction of the first guide rail 110, it also moves along the axial direction of the clamped pipe, thereby processing different axial positions of the pipe.

[0050] In order to achieve that after the first plasma spray head 130 completes processing of one pipe, the first plasma spray head 130 moves to the position corresponding to other pipes arranged side by side to start processing, in some embodiments, the first plasma module further includes a second guide rail 120, which extends in a direction perpendicular to the mounting plate and is aligned with the first plasma spray head 130. Figure 1 and Figure 2 For example, the second guide rail 120 is disposed vertically. The first plasma shower head 130 is slidably disposed on the second guide rail 120, with the relative sliding direction parallel to the extension direction of the second guide rail 120. It is readily understood that the clamping members 311 for clamping the pipe are arranged on the mounting plate, while the second guide rail 120 extends perpendicularly to the mounting plate. Therefore, as the first plasma shower head 130 slides along the extension direction of the second guide rail 120, the distance between the first plasma shower head 130 and the pipe to be processed can be adjusted.

[0051] Furthermore, the second guide rail 120 is slidably connected to the first guide rail 110, and the relative sliding direction is parallel to the extension direction of the first guide rail 110. When the second guide rail 120 slides along the first guide rail 110, it can drive the first plasma shower head 130 to move together, so as to achieve processing of the clamped pipe along the axial direction of the clamped pipe.

[0052] In some embodiments, the first plasma module further includes a dust collector head fixedly connected to the first plasma nozzle 130, and the inlet end of the dust collector head is arranged toward the clamped pipe. The dust collector head can be used to suck away particles generated during the pipe processing, so that the plasma processing equipment provided by the present application can be used in workshops with high requirements for environmental cleanliness. Similarly, a dust collector head can also be provided in the second plasma module and fixedly connected to the second plasma nozzle 210. The dust collector head in the first plasma module and the dust collector head in the second plasma module can be connected to the same dust collection box, which is used to provide negative pressure and accommodate the particles to be sucked away.

[0053] Furthermore, the first plasma module also includes a first driving device that is transmission-connected to the second guide rail 120 to drive the second guide rail 120 to slide along the first guide rail 110; and also includes a second driving device 140 that is transmission-connected to the first plasma nozzle 130 to drive the first plasma nozzle 130 to move along the second guide rail 120.

[0054] In some embodiments, both the first drive device and the second drive device 140 may be servo motors. The first drive device and the second guide rail 120 may be connected via a synchronous gear transmission, and the second drive device 140 and the first plasma shower head 130 may also be connected via a synchronous gear transmission. Furthermore, sensors may be provided to monitor the movement speed and position of the second guide rail 120 and the first plasma shower head 130.

[0055] In some embodiments, the first plasma module further includes a third guide rail and a third driving device. The extending direction of the third guide rail is parallel to the arrangement direction of the clamping members 311. Figure 1 and Figure 2 For example, the third guide rail extends horizontally and perpendicular to the extension direction of the first guide rail 110 and the extension direction of the second guide rail 120. The second guide rail 120 and the first plasma shower head 130 can slide along the third guide rail to move above the pipe to be processed. The third driving device is used to drive the second guide rail 120 and the first plasma shower head 130 to move along the third guide rail.

[0056] Furthermore, in some embodiments, the structure of the second plasma module is identical to that of the first plasma module, i.e., the second plasma shower head 210 also achieves axial and radial movement along the clamped pipe via two mutually slidably connected guide rails. In other embodiments, the second plasma module may also employ a structure different from that of the first plasma module, as long as the second plasma shower head 210 can achieve both axial and radial movement along the clamped pipe.

[0057] In some embodiments, the plasma processing apparatus further includes a control module, which is signal-connected to the first and second drive devices 140 in the first plasma module to control the movement of the first plasma shower head 130 at a predetermined speed and in a predetermined manner. The control module is also signal-connected to the first plasma shower head 130 to control the activation and deactivation of the first plasma shower head 130. The control module is also signal-connected to a sensor to receive information about the position and speed of the first plasma shower head 130. Similarly, the control module is signal-connected to relevant devices in the second plasma module and the second plasma shower head 210 to control the movement of the second plasma shower head 210. The control module may also be connected to a traction device 320 for driving the movement of the clamping device 310.

[0058] The control module can also be connected to the control panel 500 via a signal. The control panel 500 is used for the operator to set the movement speed of the first plasma spray head 130 and the second plasma spray head 210. The control panel 500 can also be used to set whether to process the pipe in manual mode or automatic mode.

[0059] When using the plasma processing equipment provided in the present application to process pipes, in order to prevent the first plasma nozzle 130 and the second plasma nozzle 210 from spraying against each other on both sides of the pipe and causing an unstable effect, the parameters can be reasonably set in the control panel 500 so that the first plasma nozzle 130 is started first and travels a certain distance before the second plasma nozzle 210 is started.

[0060] The process of the first plasma shower head 130 treating the pipe includes: first, the second driving device 140 is used to move the first plasma shower head 130 along the second guide rail 120 to adjust the first plasma shower head 130 to a position at an appropriate distance from the pipe to be treated; then, the first driving device is used to drive the second guide rail 120 to move along the extension direction of the first guide rail 110, so that the first plasma shower head 130 treats the pipe from one end to the other end.

[0061] The second plasma shower head 210 may use the same process to treat the pipe from the other side of the pipe to improve treatment efficiency.

[0062] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A plasma processing device, characterized in that: The invention comprises a frame, which is provided with a first plasma module, a second plasma module and a clamping module for clamping a pipe fitting. The first plasma module comprises a first plasma nozzle, and the second plasma module comprises a second plasma nozzle. The first plasma nozzle and the second plasma nozzle are respectively located on both sides of the clamping module and can move axially on both radial sides of the clamped pipe fitting.

2. The plasma processing equipment according to claim 1, characterized in that The clamping module includes two clamping devices, and the distance between the two clamping devices is adjustable to respectively clamp the two ends of the pipe.

3. The plasma processing equipment according to claim 2, characterized in that The clamping device includes a mounting plate and clamping members arranged side by side on one side of the mounting plate, and the mounting plate is connected to the frame; the clamping member in one clamping device is used to clamp one end of the pipe fitting, and the clamping member in the other clamping device is used to clamp the other end of the pipe fitting, and the first plasma nozzle and the second plasma nozzle are respectively located on both sides of the mounting plate and are located between the two mounting plates in the axial direction of the clamped pipe fitting.

4. The plasma processing equipment according to claim 3, characterized in that At least one of the clamping devices is slidably disposed on the frame and is further connected to a locking device to fix the clamping device relative to the frame.

5. The plasma processing equipment according to claim 4, characterized in that The locking device includes a threaded fastener threadedly connected to the mounting plate, and one end of the threaded fastener can abut against the frame.

6. The plasma processing equipment according to claim 3, characterized in that The first plasma module includes a first guide rail, which is located on one side of the two clamping devices and extends from one clamping device to the other clamping device; the first plasma spray head can slide along the extension direction of the first guide rail.

7. The plasma processing equipment according to claim 6, characterized in that The first plasma module also includes a second guide rail slidably connected to the first guide rail, and the relative sliding direction is parallel to the extension direction of the first guide rail; the second guide rail extends in a direction perpendicular to the mounting plate; the first plasma nozzle is slidably set on the second guide rail, and the relative sliding direction is parallel to the extension direction of the second guide rail.

8. The plasma processing equipment according to claim 7, characterized in that The first plasma module also includes a first drive device and a second drive device; the first drive device is transmission-connected to the second guide rail so that the second guide rail slides along the first guide rail; the second drive device is connected to the first plasma nozzle to drive the plasma nozzle to move along the second guide rail.

9. The plasma processing equipment according to claim 8, characterized in that The system further includes a control module, wherein the control module is connected to the first driving device, the second driving device, the first plasma spray head, and the second plasma spray head via signals.

10. The plasma processing equipment according to claim 1, wherein The first plasma module further includes a dust collecting head fixedly connected to the first plasma nozzle.