Hot-melt coiled tubing cutting device

Abstract

This invention belongs to the field of drilling tool technology and aims to solve the problems of high difficulty and long time consumption in unblocking coiled tubing downhole. Specifically, it relates to a thermo-melting coiled tubing cutting device, including a retrieval cap, a basket, an intermediate shell, a connector assembly, a conductive component, a weight rod assembly, an ignition assembly, and a central control center. The central control center is electrically connected to the conductive component. In operation, the device is lowered to the stuck point of the coiled tubing via a cable. Under the control of the central control center, the conductive component delivers a preset current, triggering the tungsten wire in the heat pipe to generate heat, igniting a preset fuel agent. The high temperature and pressure intensify the thermal motion of particles in the preset fuel agent, causing all atoms to ionize and enter the interior of the nozzle shell through the flow booster tube. This pushes the piston assembly away from the flow booster tube, exposing multiple nozzles and connecting the inside and outside for thermo-melting cutting. This integrated device greatly reduces operational risks and improves construction efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of drilling tools, and particularly relates to a hot melting type coiled tubing cutting device. BACKGROUND

[0002] The hot melting type coiled tubing cutting technology is that the tool is lowered into the coiled tubing near the sticking point through a cable, a large current is transmitted through the cable, a tungsten wire in a heat energy pipe is triggered to generate heat, a high-energy fuel agent is ignited, high pressure and strong heat are generated to intensify the thermal motion of particles in the heat energy pipe, all atoms are ionized, and the hot melting performance is used for operation. Currently, the common method for solving the sticking of the coiled tubing in the well is to pull it out with great force, and after being broken off, the coiled tubing is fished, which is easy to cause the coiled tubing to be scrapped, and the construction procedure is complex and the period is long. SUMMARY

[0003] In order to solve the above problems in the prior art, that is, to solve the problems of difficult un-sticking and long time consumption of the coiled tubing in the well, the present application provides a hot melting type coiled tubing cutting device, which comprises a fishing cap, a basket, an intermediate shell, a joint assembly, a conductive assembly, a weight rod assembly, an excitation assembly and a total control center, the total control center is electrically connected with the conductive assembly; one end of the fishing cap is provided with a clamping hole, and the other end is provided with a hollow chamber for accommodating the basket; the intermediate shell is arranged between the hollow chamber and the joint assembly; the conductive assembly penetrates through the joint assembly, the weight rod assembly and extends to the inside of the excitation assembly.

[0004] The excitation assembly comprises an excitation body, a high-pressure sealing needle, a heat energy pipe, a combustion chamber cavity, a combustion chamber shell, a flow increasing pipe, a nozzle shell, a piston assembly and a balance assembly, the high-pressure sealing needle is arranged in the inside of the excitation body; the inside of the heat energy pipe is provided with a tungsten wire; the combustion chamber shell is arranged at the end of the combustion chamber cavity away from the excitation body; the inside of the combustion chamber shell is provided with a preset fuel agent; the inside of the flow increasing pipe is in communication with the combustion chamber shell; the nozzle shell is arranged at the end of the flow increasing pipe away from the combustion chamber shell, the inside of the nozzle shell is in communication with the inside of the flow increasing pipe; a plurality of nozzles are arranged on the circumference of the nozzle shell; the piston assembly is arranged in the inside of the nozzle shell and closes the plurality of nozzles.

[0005] In the working state, the device is lowered to the sticking point of the coiled tubing through a cable, the conductive assembly transports a preset current under the control of the total control center, the tungsten wire in the heat energy pipe is triggered to generate heat, the preset fuel agent is ignited, high temperature and high pressure are generated to intensify the thermal motion of particles in the preset fuel agent, all atoms are ionized, and then enter the inside of the nozzle shell through the flow increasing pipe, push the piston assembly away from the flow increasing pipe to expose the plurality of nozzles to make the inside and outside connected, and then perform hot melting cutting.

[0006] In some preferred embodiments, one end of the connector assembly is threaded to the intermediate housing, and the other end is connected to the weight bar assembly, and one or more sealing rings are provided at the connection between the connector assembly and the weight bar assembly;

[0007] The conductive component includes a first conductive component, a second conductive component, and a third conductive component. The first conductive component passes through the connector assembly and extends into the interior of the intermediate housing. The second conductive component is disposed between the first conductive component and the third conductive component. The end of the third conductive component away from the second conductive component is used to connect to the excitation assembly.

[0008] In some preferred embodiments, the first conductive component includes a first conductive post, an insulating base, a terminal block, a first insulating sleeve, and a first conductive base. The insulating base is disposed at the end of the first conductive post away from the second conductive component, and the terminal block is disposed at the outer end of the insulating base.

[0009] The first insulating sleeve is fitted onto the other end of the first conductive post, and the first conductive seat is disposed inside the first insulating sleeve to support the first conductive post.

[0010] In some preferred embodiments, the second conductive component includes a second conductive post, a second conductive base, and a second insulating sleeve. The second insulating sleeve is disposed on the outside of the second conductive post, and the interior of the second conductive post is hollow to accommodate a first elastic element. The second conductive base is disposed at the end of the first elastic element away from the first conductive component.

[0011] In some preferred embodiments, the third conductive component includes a conductive rod, an insulating tube, a third conductive post, a third conductive seat, and a fourth conductive seat, wherein the insulating tube is sleeved on the outside of the conductive rod;

[0012] One end of the conductive rod extends into the interior of the second conductive base and is fixedly connected to the second conductive base; the other end of the conductive rod extends into the interior of the third conductive post and is connected to the third conductive base; a second elastic element is provided at the end of the third conductive base away from the conductive rod, and the fourth conductive base is provided at the end of the second elastic element.

[0013] In some preferred embodiments, one end of the high-pressure sealing needle abuts against the fourth conductive seat, and the other end abuts against the heat pipe;

[0014] The balancing component is located at the end of the nozzle housing away from the flow booster tube.

[0015] In some preferred embodiments, the balancing assembly includes a balancing cylinder and a third elastic element, the interior of the balancing cylinder having a chamber for accommodating the third elastic element; the periphery of the balancing cylinder has a plurality of balancing windows, and the plurality of balancing windows are arranged in an array.

[0016] The piston assembly includes a first piston and a second piston. The second piston is located at the end of the first piston away from the flow booster tube. The sealing groove of the first piston is provided with a plurality of sealing rings. The groove of the second piston is provided with a plurality of mud scraping rings.

[0017] In some preferred embodiments, the interior of the weighted rod assembly is provided with a first through hole section, a second through hole section, a third through hole section, a fourth through hole section and a fifth through hole section, wherein the first through hole section is used to provide the end of the connector assembly;

[0018] The second through-hole section is used to set the second conductive post;

[0019] The third through-hole section is used to install the insulating tube;

[0020] The fourth through-hole section is used to install the third conductive post;

[0021] The fifth through-hole section is used to set one end of the exciter.

[0022] In some preferred embodiments, the inner diameter of the first through-hole segment is D1, the inner diameter of the second through-hole segment is D2, the inner diameter of the third through-hole segment is D3, the inner diameter of the fourth through-hole segment is D4, and the inner diameter of the fifth through-hole segment is D5.

[0023] D1 > D2 > D3;

[0024] D4 = D3;

[0025] D5 = D1.

[0026] In some preferred embodiments, an adjustment block is further provided inside the hollow cavity, the adjustment block being disposed at the outer end of the basket to adjust the position of the basket.

[0027] The beneficial effects of this invention are as follows:

[0028] 1) The hot-melt continuous tubing cutting device disclosed in this invention has an integrated structure with direct internal and external sealing, and can be directly connected to a cable. It has AC output ignition, providing technical support for downhole construction efficiency. The conductive column of this invention is isolated by inner and outer insulating sleeves to ensure insulation greater than 1000MΩ to meet construction requirements.

[0029] 2) The device disclosed in this invention can provide technical support for downhole construction efficiency, effectively reduce operational risks, has a simple structure, is easy to maintain, and greatly improves construction efficiency. Attached Figure Description

[0030] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0031] Figure 1 This is a cross-sectional schematic diagram of a specific embodiment of the hot-melt continuous tubing cutting device of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Salvage cap; 2. Basket; 3. Adjusting block; 4. Intermediate shell; 5. Terminal block; 6. Insulating base; 7. Connector assembly; 8. First conductive post; 9. First insulating sleeve; 10. Connector sealing ring; 11. First conductive base; 12. Snap ring; 13. Second conductive post; 141. Second insulating sleeve; 142. Third insulating sleeve; 15. First elastic element; 16. Second conductive base; 17. Insulating tube; 18. Conductive rod; 19. Third conductive post; 20. Second elastic element; 21. Fourth conductive base; 22. Weighting rod 23. Sealing ring; 24. Press screw; 25. High-pressure needle sealing ring; 26. High-pressure sealing needle; 27. Excitation body; 28. Excitation body sealing ring; 29. ​​Heat pipe; 30. Combustion chamber cavity; 31. Shell sealing ring; 32. Combustion chamber shell; 33. Flow booster sealing ring; 34. Flow booster; 35. Outer shell sealing ring; 36. Nozzle shell; 37. Piston sealing ring; 38. First piston; 39. Sludge scraper ring; 40. Second piston; 41. Third elastic element; 42. Balance cylinder; 43. Weight bar assembly; 44. Cable; 45. Balance window. Detailed Implementation

[0033] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] See attached document Figure 1 This invention provides a thermoelectric continuous tubing cutting device, which includes a retrieval cap 1, a basket 2, an intermediate shell 4, a connector assembly 7, a conductive component, a weight rod assembly 42, an excitation assembly, and a central control center. The central control center is electrically connected to the conductive component. One end of the retrieval cap is provided with a locking hole for fixed connection with a cable 43, and the other end is provided with a hollow cavity to accommodate the basket. The intermediate shell is disposed between the hollow cavity and the connector assembly. The conductive component passes through the connector assembly and the weight rod assembly and extends into the interior of the excitation assembly.

[0036] One or more joint sealing rings 10 are provided at the connection between the joint assembly and the weight bar assembly.

[0037] The ignition assembly includes a high-pressure sealing needle 25, an ignition body 26, a heat pipe 28, a combustion chamber cavity 29, a combustion chamber shell 31, a flow booster pipe 33, a nozzle shell 35, a piston assembly, and a balance assembly. The high-pressure sealing needle is located inside the ignition body; a tungsten wire is installed inside the heat pipe; the combustion chamber shell is located at the end of the combustion chamber cavity away from the ignition body; a preset fuel is installed inside the combustion chamber shell; the flow booster pipe is connected to the combustion chamber shell; the nozzle shell is located at the end of the flow booster pipe away from the combustion chamber shell, and the interior of the nozzle shell is connected to the interior of the flow booster pipe; multiple nozzles are arranged on the circumference of the nozzle shell; the piston assembly is located inside the nozzle shell and seals the multiple nozzles; the preset fuel is a high-performance fuel.

[0038] In operation, the device is lowered to the clamping point of the coiled tubing via a cable. Under the control of the central control center, the conductive components deliver a preset current, triggering the tungsten filament inside the thermal tube. This generates heat, igniting a preset fuel agent. The resulting high temperature and pressure intensify the thermal motion of particles within the fuel agent, ionizing all atoms. The ionized particles then enter the nozzle housing through the flow booster tube, pushing the piston assembly away from the flow booster tube to expose multiple nozzles, connecting the internal and external parts for thermal melting and cutting. The preset current is a high current sufficient to meet the ignition requirements. This invention utilizes thermal melting performance for cutting operations, providing technical support for efficient downhole construction, effectively reducing operational risks, and featuring a simple structure, convenient maintenance, and significantly improved construction efficiency.

[0039] In this embodiment, the left end of the intermediate shell is threadedly connected to the salvage cap.

[0040] One end of the connector assembly is threaded to the intermediate housing, and the other end is connected to the weight rod assembly. One or more sealing rings are provided at the connection between the connector assembly and the weight rod assembly. The conductive component includes a first conductive component, a second conductive component, and a third conductive component. The first conductive component passes through the connector assembly and extends into the interior of the intermediate housing. The second conductive component is disposed between the first conductive component and the third conductive component. The end of the third conductive component away from the second conductive component is used to connect to the excitation assembly.

[0041] The first conductive component includes a first conductive post 8, an insulating base 6, a terminal block 5, a first insulating sleeve 9, and a first conductive base 11. The insulating base is located at the end of the first conductive post furthest from the second conductive component, and the terminal block is located at the outer end of the insulating base. The first insulating sleeve is fitted over the other end of the first conductive post, and the first conductive base is located inside the first insulating sleeve to support the first conductive post. The insulating base and the terminal block effectively ensure the insulation between the intermediate shell and the first conductive post.

[0042] The second conductive component includes a second conductive post 13, a second conductive base 16, and a second insulating sleeve 141. The second insulating sleeve is disposed on the outside of the second conductive post, and the interior of the second conductive post is hollow to accommodate a first elastic member 15. The second conductive base is disposed at the end of the first elastic member away from the first conductive component.

[0043] A retaining ring 12 is provided between the second conductive post and the weight rod assembly.

[0044] The third conductive assembly includes a conductive rod 18, an insulating tube 17, a third conductive post 19, a third conductive seat, and a fourth conductive seat 21. The insulating tube is sleeved on the outside of the conductive rod. One end of the conductive rod extends into the interior of the second conductive seat and is fixedly connected to the second conductive seat. The other end of the conductive rod extends into the interior of the third conductive post and is connected to the third conductive seat. A second elastic element 20 is provided at the end of the third conductive seat away from the conductive rod. The fourth conductive seat is provided at the end of the second elastic element and is fixed with a snap ring.

[0045] Furthermore, a third insulating sleeve 142 is provided on the outside of the third conductive post.

[0046] One end of the high-pressure sealing needle contacts the fourth conductive seat, and the other end contacts the heat pipe; the balancing component is located at the end of the nozzle housing away from the flow booster tube.

[0047] Furthermore, the balancing assembly includes a balancing cylinder 41 and a third elastic element 40. The balancing cylinder has a chamber for accommodating the third elastic element. Multiple balancing windows 44 are arranged in an array around the circumference of the balancing cylinder. The piston assembly includes a first piston 37 and a second piston 39. The second piston is located at the end of the first piston away from the flow booster tube. Multiple sealing rings are provided in the sealing groove of the first piston. Multiple mud scraping rings 38 are provided in the groove of the second piston. When the second piston slides down, it filters out the sand particles in the balancing cylinder. The third elastic element plays a buffering role.

[0048] Specifically, the interior of the weighted rod assembly is provided with a first through-hole section, a second through-hole section, a third through-hole section, a fourth through-hole section, and a fifth through-hole section. The first through-hole section is used to set the end of the connector assembly; the second through-hole section is used to set the second conductive post; the third through-hole section is used to set the insulating tube; the fourth through-hole section is used to set the third conductive post; and the fifth through-hole section is used to set one end of the excitation body.

[0049] The inner diameter of the first through-hole section is D1, the inner diameter of the second through-hole section is D2, the inner diameter of the third through-hole section is D3, the inner diameter of the fourth through-hole section is D4, and the inner diameter of the fifth through-hole section is D5; D1 > D2 > D3; D4 = D3; D5 = D1.

[0050] One or more weight rod sealing rings 22 are provided between the activator and the weight rod assembly. A pressure screw 23 is provided inside the activator to limit one end of the high-pressure sealing needle.

[0051] Furthermore, one or more high-pressure needle sealing rings 24 are provided between the high-pressure sealing needle and the excitation body, ensuring that the heat energy tube and the interior of the weight rod assembly are not connected while the other end of the high-pressure sealing needle is connected to the heat energy tube.

[0052] Furthermore, an adjustment block 3 is also provided inside the hollow cavity. The adjustment block is located at the outer end of the basket (i.e., the right end in the figure) to adjust the position of the basket.

[0053] Furthermore, one end of the exciter extends into the interior of the weighted rod assembly, and the other end extends into the interior of the combustion chamber cavity. One or more exciter sealing rings are provided between the other end of the exciter and the combustion chamber cavity.

[0054] The combustion chamber cavity has an internal channel communicating with the combustion chamber shell; one end of the combustion chamber shell extends into the end of the combustion chamber cavity; one or more shell sealing rings 30 are provided on the outer side of one end of the combustion chamber shell, and the other end of the combustion chamber shell extends into the end of the booster tube, and one or more booster tube sealing rings 32 are provided on the outer side of the other end of the combustion chamber shell.

[0055] Preferably, when there are multiple housing sealing rings, the multiple housing sealing rings are arranged in parallel; when there are multiple flow booster pipe sealing rings, the multiple flow booster pipe sealing rings are arranged in parallel.

[0056] One end of the nozzle housing extends into the end of the booster tube and the other end extends into the end of the balance cylinder. In this embodiment, the other end is threaded. A plurality of housing sealing rings 34 are provided on the outer side of one end of the nozzle housing.

[0057] One or more piston sealing rings 36 are provided on the outer side of the first piston for sliding sealing to ensure pressure balance in the cavity. When the piston assembly is in the initial position, the first piston isolates the nozzle from the booster tube through the piston sealing rings. That is, the outside of the nozzle is not connected to the inside of the booster tube. During the ignition, the tungsten wire in the heat tube generates heat after being triggered, which ignites the high-performance fuel in the combustion chamber shell, generating high temperature and high pressure, which intensifies the thermal motion of the particles inside, thereby ionizing all atoms. The particles flow into the cavity of the nozzle shell through the booster hole inside the booster tube, pushing the first piston and the second piston downward, exposing the nozzle, and connecting the inside and outside of the device. At this time, the high pressure and hot gas particle beam is injected into the continuous tubing through the nozzle to thermally melt and cut the circumferential tube wall.

[0058] Although the invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0059] In the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0062] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A thermoplastic continuous tubing cutting device, characterized in that, The device includes a retrieval cap, a basket, an intermediate shell, a connector assembly, a conductive component, a weighted rod assembly, an excitation assembly, and a central control center, wherein the central control center is electrically connected to the conductive component; one end of the retrieval cap is provided with a locking hole, and the other end has a hollow cavity for accommodating the basket; the intermediate shell is disposed between the hollow cavity and the connector assembly; the conductive component passes through the connector assembly and the weighted rod assembly and extends into the interior of the excitation assembly; The excitation assembly includes an excitation body, a high-pressure sealing needle, a heat pipe, a combustion chamber cavity, a combustion chamber shell, a flow booster pipe, a nozzle shell, a piston assembly, and a balance assembly. The high-pressure sealing needle is disposed inside the excitation body; a tungsten filament is disposed inside the heat pipe; the combustion chamber shell is disposed at the end of the combustion chamber cavity away from the excitation body; a pre-set fuel is disposed inside the combustion chamber shell; the flow booster pipe is connected to the combustion chamber shell; the nozzle shell is disposed at the end of the flow booster pipe away from the combustion chamber shell, and the interior of the nozzle shell is connected to the interior of the flow booster pipe; multiple nozzles are disposed on the circumference of the nozzle shell. The piston assembly is disposed inside the nozzle housing and seals off the plurality of nozzles; In operation, the device is lowered to the stop point of the continuous tubing via a cable. Under the control of the central control center, the conductive component delivers a preset current, triggering the tungsten filament in the thermal tube to generate heat, igniting the preset fuel. The high temperature and pressure intensify the thermal motion of the particles in the preset fuel, causing all atoms to ionize and enter the interior of the nozzle housing through the booster tube. This pushes the piston assembly away from the booster tube, exposing multiple nozzles to connect the inside and outside for thermal melting and cutting.

2. The thermoforming continuous tubing cutting device according to claim 1, characterized in that, One end of the connector assembly is threaded to the intermediate housing, and the other end is connected to the weight rod assembly. One or more sealing rings are provided at the connection between the connector assembly and the weight rod assembly. The conductive component includes a first conductive component, a second conductive component, and a third conductive component. The first conductive component passes through the connector assembly and extends into the interior of the intermediate housing. The second conductive component is disposed between the first conductive component and the third conductive component. The end of the third conductive component away from the second conductive component is used to connect to the excitation assembly.

3. The thermoforming continuous tubing cutting device according to claim 2, characterized in that, The first conductive component includes a first conductive post, an insulating base, a terminal block, a first insulating sleeve, and the first conductive base. The insulating base is disposed at the end of the first conductive post away from the second conductive component, and the terminal block is disposed at the outer end of the insulating base. The first insulating sleeve is fitted onto the other end of the first conductive post, and the first conductive seat is disposed inside the first insulating sleeve to support the first conductive post.

4. The thermoforming continuous tubing cutting device according to claim 3, characterized in that, The second conductive component includes a second conductive post, a second conductive base, and a second insulating sleeve. The second insulating sleeve is disposed on the outside of the second conductive post, and the interior of the second conductive post is hollow to accommodate a first elastic element. The second conductive base is disposed at the end of the first elastic element away from the first conductive component.

5. The hot-melt continuous tubing cutting device according to claim 4, characterized in that, The third conductive component includes a conductive rod, an insulating tube, a third conductive post, a third conductive base, and a fourth conductive base, with the insulating tube sleeved on the outside of the conductive rod; One end of the conductive rod extends into the interior of the second conductive base and is fixedly connected to the second conductive base; the other end of the conductive rod extends into the interior of the third conductive post and is connected to the third conductive base; a second elastic element is provided at the end of the third conductive base away from the conductive rod, and the fourth conductive base is provided at the end of the second elastic element.

6. The thermoforming continuous tubing cutting device according to claim 5, characterized in that, One end of the high-pressure sealing needle abuts against the fourth conductive base, and the other end abuts against the heat pipe; The balancing component is located at the end of the nozzle housing away from the flow booster tube.

7. The thermoforming continuous tubing cutting device according to claim 6, characterized in that, The balancing assembly includes a balancing cylinder and a third elastic element. The balancing cylinder has a cavity inside to accommodate the third elastic element. The balancing cylinder has multiple balancing windows on its periphery, and the multiple balancing windows are arranged in an array. The piston assembly includes a first piston and a second piston. The second piston is disposed at the end of the first piston away from the flow booster tube. The first piston has a plurality of sealing rings on its periphery. The second piston has a plurality of sludge scraping rings on its periphery.

8. The thermoforming continuous tubing cutting device according to claim 7, characterized in that, The interior of the weighted rod assembly is provided with a first through hole section, a second through hole section, a third through hole section, a fourth through hole section and a fifth through hole section, wherein the first through hole section is used to set the end of the connector assembly; The second through-hole section is used to set the second conductive post; The third through-hole section is used to install the insulating tube; The fourth through-hole section is used to install the third conductive post; The fifth through-hole section is used to set one end of the exciter.

9. The thermoforming continuous tubing cutting device according to claim 8, characterized in that, The inner diameter of the first through-hole section is D1, the inner diameter of the second through-hole section is D2, the inner diameter of the third through-hole section is D3, the inner diameter of the fourth through-hole section is D4, and the inner diameter of the fifth through-hole section is D5. D1 > D2 > D3; D4 = D3; D5 = D1.

10. The thermoforming continuous tubing cutting device according to claim 1, characterized in that, An adjustment block is also provided inside the hollow cavity. The adjustment block is located at the outer end of the basket to adjust the position of the basket.

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