Sintering device for producing high-temperature-resistant negative-pressure-resistant steel lining polytetrafluoroethylene pipe

Abstract

The invention provides a sintering device for producing a high-temperature-resistant negative-pressure-resistant steel lining polytetrafluoroethylene pipe, and belongs to the technical field of pipeline machining, the sintering device comprises a pipe fitting sintering assembly, a storage rotating disc assembly is arranged at the inner end of the pipe fitting sintering assembly, a magnetic pushing assembly is arranged in the pipe fitting sintering assembly, and a multifunctional material shaking assembly is arranged in the storage rotating disc assembly; according to the device, through cooperative operation of the arrangement of the storage rotating disc assembly and the magnetic pushing assembly, precise control over the heating uniformity of the pipe is achieved, the rotating disc drives the pipe to rotate, it is ensured that heating in the circumferential direction is balanced, and the temperature monitoring assembly is arranged on the storage rotating disc assembly; reciprocating shaking generated by cooperation of magnetic pushing and the multifunctional material shaking assembly can eliminate local temperature deviation in a targeted mode, and when local overheating is detected, the system enhances the magnetic acting force so as to expand the shaking amplitude and rapidly disperse heat. And when the temperature is uniform, shaking is reduced, the rotating speed is reduced, and energy consumption is optimized while the effect is guaranteed.

Description

Technical Field

[0001] This invention relates to a sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel pipes, belonging to the field of pipe processing technology. Background Technology

[0002] The sintering device for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes is used to sinter the PTFE-lined steel tubes. It melts the PTFE material at high temperature, improving the mechanical strength and heat resistance of the tubes and ensuring their stability and durability under high-temperature and negative-pressure environments.

[0003] Chinese Patent Publication No. CN2879081Y discloses a sintering furnace for pipe fittings, designed to enhance the airtightness of the sintering chamber and ensure its reliability and extended service life due to the excellent insulation of the sintering chamber. The sintering chamber has an airtight device at its bottom (used to prevent vaporization of the sintered material due to high temperatures during sintering). Furthermore, the excellent airtightness of the sintering chamber not only prevents leakage of special gases but also allows for more precise temperature control, increasing the effective volume of the sintering chamber and thus the quantity of sintered material. Traditional equipment has limited temperature monitoring coverage, making it difficult to accurately capture temperature differences in different areas of the pipe. Furthermore, it lacks an intelligent collaborative control mechanism, making it impossible to dynamically adjust parameters such as heating power, rotation speed, and auxiliary shaking frequency based on real-time temperature data. When faced with pipes with different temperature characteristics (such as thin-walled pipes that are prone to overheating and thick-walled pipes that have slow heat transfer), it is impossible to optimize the sintering process in a targeted manner, resulting in energy waste or unstable processing quality.

[0004] To address this, a sintering apparatus for the production of high-temperature and negative-pressure resistant steel-lined PTFE tubes is proposed. Summary of the Invention

[0005] In view of this, the present invention provides a sintering apparatus for the production of high-temperature and negative-pressure resistant PTFE-lined steel tubes, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0006] The technical solution of the present invention is implemented as follows: A sintering device for producing high temperature and negative pressure resistant PTFE-lined steel tubes includes: a tube sintering assembly, a material handling turntable assembly at the inner end of the tube sintering assembly, a magnetic pushing assembly in the tube sintering assembly, a multi-functional material shaking assembly in the material handling turntable assembly, a temperature monitoring assembly on the material handling turntable assembly, and an intelligent control assembly at the side end of the tube sintering assembly. The sintering assembly for pipe fittings includes a sintering chamber, a sealed chamber door is hinged to the upper end of the sintering chamber, an equipment bottom chamber is fixedly connected to the lower end of the sintering chamber, a heating inner plate is fixedly connected to the rear inner wall of the sintering chamber, and a heat pump located in the equipment bottom chamber is connected to the outside of the heating inner plate. The turntable assembly includes a pair of rotating inner discs. The two rotating inner discs are symmetrically arranged on the lower inner wall of the sintering chamber. Two drive motors are fixedly connected in the bottom chamber of the equipment. The output ends of the two drive motors are respectively connected to the lower end of the corresponding rotating inner disc. The upper end of the rotating inner disc is provided with multiple strip-shaped sliding groove support plates arranged in a ring at equal intervals. The magnetic drive assembly includes a main vertical shaft frame, which is fixedly connected between two rotating inner disks. Cross rotating side frames are symmetrically installed at the left and right ends of the main vertical shaft frame. Multiple mutually repulsive magnetic mating plates are fixedly connected to the end of the cross rotating side frame away from the main vertical shaft frame. A motor is installed in the middle of the cross rotating side frame. The multi-functional material swaying assembly includes an inner linkage slider that is slidably connected within a strip-shaped chute support plate. The inner linkage slider is fixedly connected to a vertical riser rod directly above it. Linkage side rods are symmetrically fixedly connected to the left and right ends of the inner linkage slider. Side inner guide grooves are symmetrically opened on the left and right inner walls of the strip-shaped chute support plate. A front square opening is opened at the front end of the strip-shaped chute support plate. A metal mating protrusion is fixedly connected to the end of the inner linkage slider near the front square opening.

[0007] More preferably, the front end of the linkage side rod is fixedly connected to a second elastic spring that is interconnected with the inner wall of the inner guide groove, and the rear end of the linkage side rod is fixedly connected to a first elastic spring that is interconnected with the inner wall of the inner guide groove.

[0008] More preferably, the upper end of the strip-shaped chute support plate is provided with a vertical riser rod, and the outer end of the vertical riser rod is fixedly connected with an anti-slip coating.

[0009] More preferably, the outer end of the vertical riser clamp is fitted with the riser body to be processed, and the upper and lower ends of the riser body to be processed are symmetrically fixedly connected with flanges.

[0010] More preferably, the flange has multiple flange holes on its outer side, through which the riser body to be processed passes through the vertical riser clamp at the upper and lower positions.

[0011] More preferably, the metal mating protrusion extends through the front square opening, and the metal mating protrusion and the corresponding mutually repulsive magnetic mating plate are in a horizontal state and magnetically mated.

[0012] More preferably, the temperature monitoring component includes two sensor brackets, which are respectively fixedly connected above the rotating inner disk.

[0013] More preferably, the lower end of the sensor bracket is fixedly connected to a plurality of single inclined brackets arranged in a ring at equal intervals, and the lower end of each single inclined bracket is fixedly connected to a temperature sensor.

[0014] More preferably, the output ends of multiple temperature sensors can cover the outer range of the riser body to be processed, and the intelligent control component includes a control terminal panel.

[0015] More preferably, the control terminal panel is fixedly connected to the right end of the sintering chamber, and the control terminal panel is electrically connected to the pipe sintering assembly, the turntable assembly, the magnetic push assembly, the multi-functional material shaking assembly, and the temperature monitoring assembly.

[0016] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: I. This invention features a rotating tray assembly where the pipes to be processed are securely engaged with vertical pipe clamps via a flange structure. An anti-slip coating enhances the friction of the contact surfaces, effectively preventing axial and radial sliding during rotation or shaking, ensuring the stability of various pipes during processing. After the sealed chamber door of the pipe sintering assembly is closed, a closed space is formed, which, together with the heating inner plate and heat pump system, creates a stable heating environment, reducing external interference and providing a uniform and controllable temperature base for pipe sintering. This structural design not only ensures the safety of the processing process but also lays a reliable physical foundation for subsequent precise control.

[0017] Second, this invention achieves precise control of the uniformity of pipe heating by setting up a rotating disk assembly and a magnetic drive assembly in synergy. The disk drives the pipe to rotate to ensure even heating in the circumferential direction. The reciprocating swaying generated by the magnetic drive and the multi-functional shaking assembly can specifically eliminate local temperature deviations. When local overheating is detected, the system enhances the magnetic force to increase the swaying amplitude and quickly disperse heat. When the temperature is uniform, the swaying is reduced and the rotation speed is lowered. While ensuring the effect, energy consumption is optimized. This dynamic adjustment mechanism effectively solves the problem of uneven heating of pipes with different wall thicknesses and structures, and greatly improves the consistency of sintering quality.

[0018] Third, by deeply integrating temperature monitoring and intelligent control, this invention enables the device to have a powerful adaptability to various types of pipes. Multiple temperature sensors fully cover the surface of the pipe, capturing temperature differences in different areas in real time. The control terminal adjusts the heating power, rotation speed, and shaking parameters to accurately adapt to the characteristics of various pipes, such as thin-walled pipes that are prone to overheating, thick-walled pipes that have slow heat transfer, composite materials, and irregular structures.

[0019] Fourth, this invention achieves an optimal balance between efficiency and energy consumption by setting an intelligent adjustment mechanism throughout the entire processing process. By dynamically adjusting the operating parameters of each component through real-time temperature feedback, it avoids ineffective energy consumption. The automated control of the entire process reduces manual intervention and improves production continuity.

[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. 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 external structure of the sintering assembly for the pipe fittings of the present invention.

[0023] Figure 2 This is a schematic diagram of the internal structure of the sintering assembly for pipe fittings of the present invention.

[0024] Figure 3 This is a schematic diagram of the drive motor structure of the present invention.

[0025] Figure 4 This is a schematic diagram of the rotating drive inner disc structure of the present invention.

[0026] Figure 5 This is a schematic diagram of the external rotating drive inner disc of the riser body to be processed according to the present invention.

[0027] Figure 6 This is a schematic diagram of the structure of the riser body to be processed according to the present invention.

[0028] Figure 7 This is a schematic diagram of the magnetic drive component structure of the present invention.

[0029] Figure 8 This is a schematic diagram of the material shaking assembly structure of the present invention.

[0030] Figure 9 This is a schematic diagram of the exploded structure of the material shaking assembly of the present invention.

[0031] Figure 10 For the present invention Figure 9 A magnified schematic diagram of the partial truncation at point A in the middle.

[0032] Figure 11 This is a schematic diagram of the temperature monitoring component structure of the present invention.

[0033] Figure 12 This is a schematic diagram of the process of the present invention.

[0034] Figure label: 1. Pipe sintering assembly; 100. Sintering chamber; 101. Sealed chamber door; 102. Equipment bottom chamber; 103. Heating inner plate; 2. Turntable assembly; 200. Rotating main drive inner disc; 201. Drive motor; 202. Strip-shaped slide support plate; 203. Vertical pipe clamp; 2031. Anti-slip coating; 204. Vertical pipe body to be processed; 2040. Flange; 2041. Flange ring hole; 3. Magnetic drive assembly; 300. Main vertical shaft frame; 301. Cross rotating side frame 3010, Motor; 302, Mutually exclusive magnetic mating plate; 4, Multifunctional material shaking assembly; 400, Side inner guide groove; 401, First elastic spring; 402, Second elastic spring; 403, Front square opening; 404, Inner linkage slider; 405, Metal docking protrusion; 406, Linkage side rod; 5, Temperature monitoring assembly; 500, Sensor bracket; 501, Single inclined bracket; 502, Temperature sensor; 6, Intelligent control assembly; 600, Control terminal panel. Detailed Implementation

[0035] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0036] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Example

[0037] like Figures 1-12 As shown, this embodiment of the invention provides a sintering device for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes, comprising: a tube sintering assembly 1, a turntable assembly 2 disposed at the inner end of the tube sintering assembly 1, a magnetic pushing assembly 3 disposed in the tube sintering assembly 1, a multi-functional material shaking assembly 4 disposed in the turntable assembly 2, a temperature monitoring assembly 5 disposed on the turntable assembly 2, and an intelligent control assembly 6 disposed on the side end of the tube sintering assembly 1; The pipe fitting sintering assembly 1 includes a sintering chamber 100. A sealing chamber door 101 is hinged to the upper end of the sintering chamber 100. An equipment bottom chamber 102 is fixedly connected to the lower end of the sintering chamber 100. A heating inner plate 103 is fixedly connected to the rear inner wall of the sintering chamber 100. A heat pump located in the equipment bottom chamber 102 is connected to the heating inner plate 103. A vertical riser clamp 203 is provided at the upper end of the strip-shaped slide support plate 202. An anti-slip coating 2031 is fixedly connected to the outer end of the vertical riser clamp 203. A riser body 204 to be processed is placed and engaged at the outer end of the vertical riser clamp 203. Flanges 2040 are symmetrically fixedly connected to the upper and lower ends of the riser body 204 to be processed. Multiple flange holes 2041 are opened on the outer side of the flanges 2040. The riser body 204 to be processed passes through the flange holes 2041 and passes through the upper and lower positions of the vertical riser clamp 203. By setting the riser body 204 to be processed through the flange ring holes 2041 of the upper and lower flanges 2040, it is locked and fixed on the vertical riser clamp 203 of the turntable assembly 2. The anti-slip coating 2031 increases the friction coefficient of the contact surface, preventing the pipe from sliding axially or radially due to rotational centrifugal force or reciprocating impact force, ensuring that it is stably fixed on the vertical riser clamp 203. At this time, the sealing chamber door 101 of the pipe sintering assembly 1 is closed, so that the sintering chamber 100 forms a sealed space. The heat pump in the bottom chamber 102 of the equipment is started, providing a heat source for the heating inner plate 103 on the inner wall of the sintering chamber 100. The heating inner plate 103 releases heat, raising the temperature inside the chamber to the value required for sintering.

[0038] The turntable assembly 2 includes a pair of rotating inner discs 200. The two rotating inner discs 200 are symmetrically arranged on the lower inner wall of the sintering chamber 100. Two drive motors 201 are fixedly connected in the bottom chamber 102 of the equipment. The output ends of the two drive motors 201 are respectively connected to the lower end of the corresponding rotating inner disc 200. The upper end of the rotating inner disc 200 is provided with a plurality of strip-shaped sliding groove support plates 202 arranged in a ring at equal intervals. The drive motor 201 in the turntable assembly 2 is started, which drives the rotating inner disc 200 and the vertical pipe body 204 to be processed on the strip slide support plate 202 to rotate at a preset speed, ensuring that the pipe is initially heated evenly.

[0039] The magnetic drive assembly 3 includes a main vertical shaft frame 300, which is fixedly connected between two rotating inner disks 200. Cross rotating side frames 301 are symmetrically mounted on the left and right ends of the main vertical shaft frame 300. Multiple mutually repulsive magnetic mating plates 302 are fixedly connected to the end of the cross rotating side frame 301 away from the main vertical shaft frame 300. A motor 3010 is installed in the middle of the cross rotating side frame 301. The multi-functional material swaying assembly 4 includes an inner linkage slider 404 slidably connected within a strip-shaped chute support plate 202. The inner linkage slider 404 is fixedly connected to a vertical riser rod 203 directly above it. Linkage side rods 406 are symmetrically fixedly connected to the left and right ends of the inner linkage slider 404. Side inner guide grooves 400 are symmetrically opened on the left and right inner walls of the strip-shaped chute support plate 202. A front square opening 403 is opened at the front end of the strip-shaped chute support plate 202, and the inner linkage slider 404 is located near the front square opening. One end of 403 is fixedly connected to a metal mating protrusion 405. The front end of the linkage side rod 406 is fixedly connected to a second elastic spring 402 that is connected to the inner side wall of the inner guide groove 400. The rear end of the linkage side rod 406 is fixedly connected to a first elastic spring 401 that is connected to the inner side wall of the inner guide groove 400. The metal mating protrusion 405 penetrates through the front square opening 403. The metal mating protrusion 405 and the corresponding mutually exclusive magnetic mating plate 302 are in a horizontal state and magnetically mated.

[0040] The motor 3010 of the magnetic drive component 3 drives the cross-shaped rotating side frame 301 to rotate around the main vertical shaft frame 300. The motor 3010 is a Panasonic MHMJ042G1U. This causes the mutually repulsive magnetic mating plate 302 to move with the side frame. Through magnetic action, the metal docking protrusion 405 of the multi-functional shaking component 4 pushes the inner linkage slider 404 to slide along the inner guide groove 400. With the help of the elastic force of the first elastic spring 401 and the second elastic spring 402, the body of the vertical pipe to be processed 204 is driven to shake back and forth, which enhances the uniformity of heating. Example

[0041] like Figure 2 , Figure 7 As shown, in one embodiment, the temperature monitoring component 5 includes two sensor brackets 500, which are respectively fixedly connected above the rotating inner disk 200. The lower end of the sensor brackets 500 is fixedly connected to a plurality of single inclined brackets 501 arranged in a ring at equal intervals. The lower end of each single inclined bracket 501 is fixedly connected to a temperature sensor 502. The output ends of the plurality of temperature sensors 502 can cover the outer area of ​​the riser body 204 to be processed.

[0042] The intelligent control component 6 includes a control terminal panel 600, which is fixedly connected to the right end of the sintering chamber 100. The control terminal panel 600 is electrically connected to the pipe sintering component 1, the turntable component 2, the magnetic push component 3, the multi-functional shaking component 4, and the temperature monitoring component 5.

[0043] The sensor bracket 500 of the temperature monitoring component 5 is fixed above the rotating inner disk 200. The single inclined bracket 501 at its lower end supports the temperature sensor 502. The monitoring range of multiple temperature sensors 502 covers the outside of the riser body 204 to be processed, collects the temperature data of the pipe and the chamber in real time, and transmits it to the control terminal panel 600 of the intelligent control component 6. The control terminal panel 600 is electrically connected to each component and automatically adjusts the heating power of the heating inner plate 103, the speed of the drive motor 201 and the operating frequency of the magnetic drive component 3 according to the temperature data to ensure that the sintering process is stable and controllable.

[0044] When the present invention is in operation: the riser body 204 to be processed is engaged and fixed on the vertical riser clamp 203 of the turntable assembly 2 through the flange ring holes 2041 of the upper and lower flanges 2040. The anti-slip coating 2031 increases the friction coefficient of the contact surface to prevent the pipe from sliding axially or radially due to rotational centrifugal force or reciprocating impact force, ensuring that it is stably fixed on the vertical riser clamp 203. At this time, the sealing chamber door 101 of the pipe sintering assembly 1 is closed, so that the sintering chamber 100 forms a sealed space. The heat pump in the bottom chamber 102 of the equipment is started to provide a heat source for the heating inner plate 103 on the inner wall of the sintering chamber 100. The heating inner plate 103 releases heat, so that the temperature inside the chamber rises to the value required for sintering.

[0045] When the drive motor 201 of the turntable assembly 2 is started, it drives the rotating inner disc 200 and the vertical pipe body 204 to be processed on the strip slide support plate 202 to rotate at a preset speed, ensuring that the pipe is initially heated evenly. The drive motor 201 of the turntable assembly 2 adopts the Panasonic MSME series servo motor, whose speed preset parameter is precisely adjusted in the range of 5-30 rpm.

[0046] Simultaneously, the motor 3010 of the magnetic drive component 3 drives the cross-shaped rotating side frame 301 to rotate around the main vertical shaft frame 300, causing the mutually repulsive magnetic mating plates 302 to move with the side frame. The magnetism of the multiple mutually repulsive magnetic mating plates 302 is arranged in a sequentially decreasing manner. Through the magnetic action of the repulsive force, the metal docking protrusion 405 of the multi-functional shaking component 4 pushes the inner linkage slider 404 to slide along the inner guide groove 400. With the elastic force of the first elastic spring 401 and the second elastic spring 402, the vertical pipe body 204 to be processed is driven to reciprocate and shake, which enhances the uniformity of heating. The temperature sensor 502 of the temperature monitoring component 5 collects the temperature data of each area of ​​the vertical pipe body 204 to be processed in real time through a single inclined bracket 501 and sensor bracket 500, and transmits it to the control terminal panel 600 for analysis. When the local temperature of the pipeline is detected to be too high, the control terminal panel 600 adjusts the magnetic push component 3 to enhance the magnetic force, so that the metal docking protrusion 405 drives the inner linkage slider 404 to increase the shaking amplitude, and disperses the local heat through high-frequency shaking. When the overall temperature uniformity meets the standard, the control terminal panel 600 adjusts the magnetic push component 3 to reduce the magnetic force, thereby reducing the swaying amplitude of the metal docking protrusion 405 driving the inner linkage slider 404, and automatically reducing the output power of the drive motor 201, thereby reducing the rotation speed of the rotating inner disk 200, reducing energy consumption while maintaining uniform heating. This dynamic adjustment mechanism, formed by the magnetic drive component 3 and the multi-functional material-shaking component 4, combined with the synergistic effect of temperature monitoring and intelligent control, has significant adaptability advantages for pipe fittings with different temperature characteristics, such as thin-walled pipe fittings prone to overheating, thick-walled pipe fittings with slow heat transfer, and composite material layered pipe fittings. The sensor bracket 500 of the temperature monitoring component 5 is fixed above the rotating inner disk 200, and a single inclined bracket 501 at its lower end supports the temperature sensor 502. The monitoring range of multiple temperature sensors 502 covers the body 204 of the riser pipe to be processed. On the outside, real-time temperature data of the pipe and the chamber is collected and transmitted to the control terminal panel 600 of the intelligent control component 6. The control terminal panel 600 is electrically connected to each component and automatically adjusts the heating power of the heating inner plate 103, the speed of the drive motor 201 and the operating frequency of the magnetic drive component 3 according to the temperature data to ensure that the sintering process is stable and controllable. After sintering, the system stops heating according to the preset program. After the temperature drops to a safe range, the sealed chamber door 101 is opened and the processed steel-lined PTFE pipe is removed to complete the entire sintering process.

[0047] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes, characterized in that, include: A pipe fitting sintering assembly (1) is provided with a storage turntable assembly (2) at its inner end, a magnetic push assembly (3) is provided in the pipe fitting sintering assembly (1), a multi-functional material shaking assembly (4) is provided in the storage turntable assembly (2), a temperature monitoring assembly (5) is provided on the storage turntable assembly (2), and an intelligent control assembly (6) is provided on the side end of the pipe fitting sintering assembly (1). The sintering assembly (1) includes a sintering chamber (100), the upper end of which is hinged to a sealing chamber door (101), the lower end of which is fixedly connected to an equipment bottom chamber (102), the rear inner wall of which is fixedly connected to a heating inner plate (103), and the heating inner plate (103) is externally connected to a heat pump located in the equipment bottom chamber (102); The turntable assembly (2) includes a pair of rotating inner discs (200). The two rotating inner discs (200) are arranged symmetrically on the lower inner wall of the sintering chamber (100). Two drive motors (201) are fixedly connected in the bottom chamber (102). The output ends of the two drive motors (201) are respectively connected to the lower end of the corresponding rotating inner disc (200). The upper end of the rotating inner disc (200) is provided with a plurality of strip-shaped sliding groove support plates (202) arranged in a ring at equal intervals. The magnetic drive assembly (3) includes a main vertical shaft frame (300), which is fixedly connected between two rotating inner disks (200). Cross rotating side frames (301) are symmetrically mounted on the left and right ends of the main vertical shaft frame (300). Multiple mutually repulsive magnetic mating plates (302) are fixedly connected to the end of the cross rotating side frame (301) away from the main vertical shaft frame (300). A motor (3010) is installed in the middle of the cross rotating side frame (301). The multifunctional material swaying assembly (4) includes an inner linkage slider (404) that is slidably connected in the strip chute support plate (202). The inner linkage slider (404) is fixedly connected to the vertical riser rod (203) directly above it. Linkage side rods (406) are symmetrically fixedly connected to the left and right ends of the inner linkage slider (404). The inner walls of the strip chute support plate (202) are symmetrically provided with side inner guide grooves (400). The front end of the strip chute support plate (202) is provided with a front square opening (403). A metal docking protrusion (405) is fixedly connected to one end of the inner linkage slider (404) near the front square opening (403).

2. The sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes according to claim 1, characterized in that: The front end of the linkage side rod (406) is fixedly connected to a second elastic spring (402) that is connected to the inner wall of the inner guide groove (400), and the rear end of the linkage side rod (406) is fixedly connected to a first elastic spring (401) that is connected to the inner wall of the inner guide groove (400).

3. The sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes according to claim 1, characterized in that: The upper end of the strip groove support plate (202) is provided with a vertical riser rod (203), and the outer end of the vertical riser rod (203) is fixedly connected with an anti-slip coating (2031).

4. The sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes according to claim 3, characterized in that: The outer end of the vertical riser clamp (203) is fitted with the riser body (204) to be processed, and the upper and lower ends of the riser body (204) to be processed are symmetrically fixedly connected with flanges (2040).

5. The sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes according to claim 4, characterized in that: The flange (2040) has multiple flange holes (2041) on its outside. The vertical pipe body (204) to be processed passes through the flange holes (2041) and passes through the vertical pipe clamp (203) at the upper and lower positions.

6. The sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes according to claim 1, characterized in that: The metal mating protrusion (405) penetrates the front square opening (403) inside and out. The metal mating protrusion (405) and the corresponding mutually exclusive magnetic mating plate (302) are in a horizontal state and magnetically mated.

7. The sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes according to claim 1, characterized in that: The temperature monitoring component (5) includes two sensor brackets (500), which are respectively fixedly connected above the rotating inner disk (200).

8. The sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes according to claim 7, characterized in that: The lower end of the sensor bracket (500) is fixedly connected to a plurality of single inclined brackets (501) arranged in a ring at equal intervals, and the lower end of the single inclined bracket (501) is fixedly connected to a temperature sensor (502).

9. A sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes according to claim 8, characterized in that, The outputs of the multiple temperature sensors (502) can cover the outer range of the riser body (204) to be processed, and the intelligent control component (6) includes a control terminal panel (600).

10. A sintering apparatus for producing high-temperature and negative-pressure resistant PTFE-lined steel tubes according to claim 9, characterized in that: The control terminal panel (600) is fixedly connected to the right end of the sintering chamber (100), and the control terminal panel (600) is electrically connected to the pipe sintering assembly (1), the turntable assembly (2), the magnetic push assembly (3), the multi-functional shaking assembly (4), and the temperature monitoring assembly (5).

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