Detection device based on polytetrafluoroethylene corrugated pipe production and processing

Abstract

The invention discloses a detection device based on polytetrafluoroethylene corrugated pipe production and processing, relates to the field of corrugated pipe production, and aims to solve the problems that existing corrugated pipe detection equipment cannot accurately simulate the complex stress condition of a corrugated pipe in practical application, and the accuracy and comprehensiveness of a detection result are affected. A traction bending assembly is arranged on the machine frame, detection tables are arranged on the two sides of the traction bending assembly, the detection tables are fixedly connected with the machine frame, pipe opening fixing clamps are fixedly connected to the detection tables, sliding tables are arranged below the pipe opening fixing clamps, and the sliding tables are in sliding connection with the detection tables. The device has the advantages that through cooperation of the traction bending assembly and the air plug, the complex stress environment of the corrugated pipe is simulated, the air tightness and the bending resistance of the corrugated pipe are synchronously detected, and the accuracy of a detection result is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of bellows production, and in particular to a detection device based on the production and processing of polytetrafluoroethylene bellows. Background Art

[0002] In modern industry, polytetrafluoroethylene (PTFE) bellows are widely used in various fields such as petroleum, aviation, aerospace, chemical industry, etc. due to their unique properties. PTFE bellows have the characteristics of high temperature resistance, low temperature resistance, corrosion resistance, weather aging resistance, high lubricity, non-stickiness and excellent electrical properties, making it an ideal fluid transmission and sealing material. However, in the production and processing of bellows, the detection of its air tightness and anti-bending performance has always been a difficulty and focus in the industry.

[0003] Air tightness is one of the key indicators to measure the quality of bellows. In practical applications, bellows need to withstand a certain pressure. If the air tightness is not good, fluid leakage will occur, thus affecting the normal operation and safety of the equipment. Traditional air tightness detection methods include air tightness test and water immersion method. The air tightness test is to inflate the bellows to the specified pressure, and then use a gas leak detection instrument to check whether there is gas leakage around the bellows. The anti-bending performance of the bellows is an important indicator of whether it can maintain structural integrity and functionality during use. Since bellows often need to withstand bending and vibration in applications, if the anti-bending performance is poor, the bellows will break or deform, thus affecting its sealing and service life. However, most of the existing anti-bending performance detection methods rely on simple mechanical bending tests.

[0004] Although the above two devices can test the air tightness and bending resistance of the bellows, they cannot accurately simulate the complex stress conditions of the bellows in actual applications. Therefore, the test results are often not accurate and comprehensive. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a detection device based on the production and processing of polytetrafluoroethylene bellows. Through this design, the problem that the existing bellows detection equipment cannot accurately simulate the complex stress conditions of the bellows in actual applications, affecting the accuracy and comprehensiveness of the detection results is effectively solved.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the present invention comprises a frame, a traction bending assembly is provided on the frame, a detection platform is provided on both sides of the traction bending assembly, the detection platform is fixedly connected to the frame, a pipe nozzle fixing clamp is fixedly connected to the detection platform, a slide is provided below the pipe nozzle fixing clamp, the slide is slidably connected to the detection platform, and an air plug is fixedly connected to the slide; The traction and bending assembly includes a lifting platform, which is rotatably connected to a first roller, first connecting rods are hinged on both sides of the lifting platform, the first connecting rods are hinged to a second connecting rod, the lower ends of the two second connecting rods are rotatably hinged to the frame, and the two second connecting rods are rotatably connected to second rollers.

[0007] Preferably, the pipe mouth fixing clamp includes a first clamp block, a second clamp block is slidably connected to one side of the first clamp block, third connecting rods are hinged at both ends of the second clamp block, an L-shaped fourth connecting rod is hinged at the other end of the third connecting rod, the middle part of the fourth connecting rod is hinged to the detection platform, a guide groove is provided on the fourth connecting rod, a guide pin is slidably connected in the guide groove, and the guide pin is fixedly connected to the sliding table.

[0008] Preferably, a telescopic rod is fixedly connected between the sliding platform and the detection platform, the guide groove includes a first sliding groove and a second sliding groove, and the first sliding groove is parallel to the fourth connecting rod.

[0009] Preferably, V-shaped grooves are formed on the inner sides of the first clamping block and the second clamping block, and mutually matching grooves are formed on the first clamping block and the second clamping block.

[0010] Preferably, the second clamping block is fixedly connected to a connecting block, the connecting block is slidably connected to a first support rod, the first support rod is fixedly connected to the detection platform, the detection platform is fixedly connected to a second support rod, and the second support rod is slidably connected to the sliding table.

[0011] Preferably, third rollers are rotatably connected to both sides of the frame.

[0012] Preferably, an adjustment groove is formed on the second connecting rod, an adjustment block is slidably connected in the adjustment groove, the adjustment block is rotationally connected to the second roller, a first adjustment screw is connected to the lower end of the adjustment block, a second adjustment screw is fixedly connected under the lifting platform, and fixing nuts are threadedly connected to the first and second adjustment screws.

[0013] Preferably, the first roller is rotatably connected to a guide block, the guide block is slidably connected to the lifting platform, two symmetrically distributed traction rods are hinged on the upper end of the guide block, the traction rods are rotatably connected to a connecting shaft, the lifting platform is provided with a third sliding groove for the connecting shaft to slide, and the connecting shaft is rotatably connected to a fourth roller.

[0014] Preferably, a fourth connecting rod is hinged on the guide block, an eccentric wheel is hinged on the other end of the fourth connecting rod, and the eccentric wheel is rotatably connected to the frame.

[0015] Preferably, the eccentric wheel includes a turntable, a fourth slide groove is opened on the turntable, a rectangular block is slidably connected in the fourth slide groove, the rectangular block is rotatably connected to the fourth connecting rod, the rectangular block is equipped with a third adjusting screw, and the third adjusting screw is rotatably connected to the turntable.

[0016] Compared with the prior art, the present invention has the following outstanding advantages: The present invention installs a testing platform and a traction and stretching assembly on the frame. The air plug on the testing platform is used to detect the air tightness of the bellows, and the traction and stretching assembly bends the bellows while punching the bellows. During the detection, the real stress environment of the bellows is simulated to ensure the accuracy of the bellows detection.

[0017] In the traction and stretching assembly of the present invention, the two second rollers can change their positions on the corrugated tube as the lifting platform moves, so that bending detection can be performed on multiple locations of the corrugated tube to avoid detection omissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall first axis side structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the forward structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the connection structure of the detection platform of the present invention.

[0021] Figure 4 It is a schematic diagram of the slide connection structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the connection structure of the pipe orifice fixing clamp of the present invention.

[0023] Figure 6 It is a schematic diagram of the fourth connecting rod connection structure of the present invention.

[0024] Figure 7 It is a schematic diagram of the rear view structure of the traction and stretching assembly of the present invention.

[0025] Figure 8 It is a schematic diagram of the second connecting rod connection structure of the present invention.

[0026] Fig. 9 It is a schematic diagram of the overall second axis side structure of the present invention.

[0027] Fig.10 It is a rear view structural schematic diagram of the lifting platform of the present invention.

[0028] Fig.11 It is a schematic diagram of the turntable connection structure of the present invention.

[0029] Numbers in the figure: 1, frame; 2, traction bending assembly; 201, lifting platform; 202, first roller; 203, first connecting rod; 204, second connecting rod; 205, second roller; 3, testing platform; 4, pipe mouth fixing clamp; 401, first clamping block; 402, second clamping block; 403, third connecting rod; 404, third connecting rod; 405, guide pin; 406, telescopic rod; 407, first slide groove; 408, second slide groove; 409, groove; 410, card slot; 411 , connecting block; 412, first support rod; 413, second support rod; 5, slide; 6, air plug; 7, third roller; 8, adjusting slot; 9, adjusting block; 10, first adjusting screw; 11, second adjusting screw; 12, fixing nut; 13, guide block; 14, traction rod; 15, third slide slot; 16, fourth roller; 17, fourth connecting rod; 18, eccentric wheel; 1801, turntable; 1802, fourth slide slot; 1803, rectangular block; 1804, third adjusting screw. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Please refer to the attached Figure 1-11 The present embodiment is a detection device based on the production and processing of polytetrafluoroethylene corrugated pipes: it includes a frame 1, a traction and bending assembly 2 is provided on the frame 1, and detection platforms 3 are provided on both sides of the traction and bending assembly 2. The detection platform 3 is fixedly connected to the frame 1, and a pipe mouth fixing clamp 4 is fixedly connected to the detection platform 3. A slide 5 is provided below the pipe mouth fixing clamp 4, and the slide 5 is slidably connected to the detection platform 3, and an air plug 6 is fixedly connected to the slide 5.

[0032] The frame 1 is a rectangular parallelepiped structure, and the length of the frame 1 is similar to that of the bellows. There are two groups of test benches 3, which are respectively installed on the left and right sides of the frame 1. The middle part of the bellows is wrapped around the traction and bending assembly 2 in an S-shape, and the middle part of the bellows is stretched and bent by the traction and bending component, so that the braided layer at the outer end of the bellows will not affect the detection of the air tightness of the inner tube of the bellows. The two ends of the bellows are fixed by the pipe mouth fixing clamps 4 on the two groups of test benches 3. The air plug 6 under the pipe mouth fixing clamp 4 is a truncated cone structure, and an air pump is connected to the lower end of the air plug 6. The air plug 6 can move vertically with the slide 5, and the air plug 6 is inserted into the pipe mouth of the bellows through the slide 5. The rubber material of the air plug 6 has good softness, and after the air plug 6 is inserted into the bellows, air leakage at the pipe mouth of the bellows can be avoided.

[0033] The traction and bending assembly 2 includes a lifting platform 201, which is rotatably connected to a first roller 202. First connecting rods 203 are hinged on both sides of the lifting platform 201. The first connecting rod 203 is hinged to a second connecting rod 204. The lower ends of the two second connecting rods 204 are rotatably hinged to the frame 1, and the two second connecting rods 204 are rotatably connected to second rollers 205.

[0034] The height of the lifting platform 201 can be adjusted as needed. The first roller 202 is rotatably connected to the lifting platform 201. Two first connecting rods 203 are respectively hinged on both sides of the lifting platform 201. A second connecting rod 204 is hinged at the end of each first connecting rod 203. The second connecting rod 204 is further connected to the frame 1 to form a stable quadrilateral structure. The second roller 205 is rotatably connected to the two second connecting rods 204. The bellows bypasses the two second rollers 205 and the first roller 202 in an S-shaped structure. When the lifting platform 201 moves vertically, the lifting platform 201 moves upward to drive the first roller 202 to When the lifting platform 201 moves upward, at the same time, the two second connecting rods 204 on both sides are driven to rotate toward the middle through the first connecting rod 203, and the two second connecting rods 204 rotate toward the middle to drive the two second rollers 205 to approach each other. In the process of vertical lifting of the lifting platform 201, the positions of the first roller 202 and the two second rollers 205 will change. At the same time, the first roller 202 and the two second rollers 205 change the bending angle and the bending position of the corrugated tube, so that the traction and bending assembly 2 can perform bending detection on different parts of the corrugated tube, and fully detect the corrugated tube to ensure the quality of the finished product.

[0035] In the initial state, the first clamp block 401 and the second clamp block 402 are in an open state so that the pipe mouth to be fixed can be placed between the two clamp blocks. At this time, the second clamp block 402 can be slidably adjusted on one side of the first clamp block 401 to adapt to pipe mouths of different diameters. When the pipe mouth is placed between the first clamp block 401 and the second clamp block 402, the closing operation begins. The second clamp block 402 will slide along the first clamp block 401 until it is tightly fitted with the first clamp block 401, thereby clamping the pipe mouth. During this process, the third connecting rod 404 at both ends of the second clamp block 402 will also move accordingly. Since the other end of the third connecting rod 404 is hinged to the L-shaped fourth connecting rod 17, when the third connecting rod 404 moves, it will drive the fourth connecting rod 17 to hinge around its middle with the inspection table 3. The fourth connecting rod 17 rotates at the same time, and this rotational movement will cause the guide groove on the fourth connecting rod 17 to move relative to the guide pin 405 fixed on the slide 5. The guide groove is designed to guide the sliding of the guide pin 405 therein, thereby ensuring that the slide 5 can move smoothly when the fourth connecting rod 17 rotates. The guide pin 405 is fixedly connected to the slide 5, and the slide 5 will move accordingly with the rotation of the fourth connecting rod 17. The slide 5 moves the air plug 6 to the pipe mouth of the bellows as the fourth connecting rod 17 rotates; with the continuous clamping of the second clamping block 402 and the rotation of the fourth connecting rod 17, the pipe mouth is firmly fixed in the pipe mouth fixing clamp 4, and the air plug 6 is just inserted into the pipe mouth position of the bellows. At this time, the whole system is in a stable state, and subsequent detection or other processing operations can be carried out.

[0036] In order to ensure the synchronous movement of the slide 5 and the second clamping block 402, the guide groove on the slide 5 is divided into a first groove 407 and a second groove 408. The lifting first groove 407 is parallel to a part of the fourth connecting rod 17. When the guide pin 405 is located in the first groove 407, the rotation of the fourth connecting rod 17 drives the guide pin 405 and the slide 5 to move upward through the first groove 407. When the second clamping block 402 and the first clamping block 401 clamp the pipeline, the second groove 408 is in a vertical state. At this time, when the guide pin 405 moves upward along the second groove 408, the movement of the guide pin 405 will not push the movement of the fourth connecting rod 17. The movement of the slide 5 only drives the air plug 6 to move upward, thereby ensuring that the air plug 6 will be inserted into the bellows only after the pipe mouth of the bellows is fixed, thereby ensuring the stability of the fixation of the pipe mouth of the bellows.

[0037] The inner side of the first clamp block 401 and the second clamp block 402 is a V-shaped groove 409. Due to the columnar structure of the corrugated tube, the V-shaped groove 409 can increase the friction force on the corrugated tube and can be well applied to different well corrugated tubes. The first clamp block 401 and the second clamp block 402 are both provided with a slot 410, and the slot 410 on the first clamp block and the slot 410 on the second clamp block are staggered. When the first clamp block 401 and the second clamp block 402 fix the corrugated tube to each other, the first clamp block can be inserted into the slot 410 of the second clamp block, and the second clamp block can also be inserted into the slot 410 of the first clamp block, so that the first clamp block and the second clamp block have a larger fixing range.

[0038] The connecting block 411 is located on the outside of the second clamping block 402. There are two first support rods. The first support rods 412 support and guide the movement of the second clamping block 402. A spring can be installed on the first support rod 412 on the outside of the connecting block 411. The spring connecting block 411 has an inward elastic force, thereby ensuring that when the second slide groove 408 and the guide pin 405 are in a vertical state, the fourth connecting rod 17 will not rotate in the opposite direction. There are also two second support rods 413. The second support rods 413 play a role of vertical guidance for the movement of the slide 5, thereby preventing the fourth connecting rod 17 from falling back due to gravity.

[0039] Both ends of the frame 1 are connected to third rollers 7, and the two third rollers 7 are fixed pulleys. The third rollers 7 can make the two ends of the corrugated pipe transition in an arc shape to prevent the bending angle of the corrugated pipe from exceeding its bending fatigue strength.

[0040] The second connecting rod 204 is provided with an adjusting slot 8, which is a long strip of space, allowing the adjusting block 9 to slide inside it. The adjusting block 9 can slide freely back and forth in the adjusting slot 8, but cannot leave the range of the adjusting slot 8. There is a rotational connection between the adjusting block 9 and the second roller 205. The adjusting block 9 has an axis or hole, and the second roller 205 is mounted on the axis through a bearing or a similar device, so that the second roller 205 can rotate freely relative to the adjusting block 9. The lower end of the adjusting block 9 is connected to a first adjusting screw 10, which is fixed or detachable. The movement of the first adjusting screw 10 will drive the adjusting block 9 to move together. Similarly, the lower end of the lifting platform 201 is fixed. A second adjusting screw 11 is fixedly connected, and the movement of the second adjusting screw 11 will drive the lifting platform 201 to move together. One or more fixing nuts 12 are threadedly connected to the first adjusting screw 10 and the second adjusting screw 11. The first adjusting screw 10 and the second adjusting screw 11 both pass through the through holes on the frame 1 to cooperate with these fixing nuts 12. These fixing nuts 12 can be locked or loosened by rotation, so as to fix or adjust the position of the first adjusting screw 10 and the second adjusting screw 11. Since the screw and the nut are threadedly connected, their positions relative to the first adjusting screw 10 or the second adjusting screw 11 can be changed by rotating the nut, thereby realizing the change of the bending angle of the corrugated pipe of the entire structure.

[0041] The guide block 13 slides vertically on the lifting platform 201, and the first roller 202 can rotate freely on the guide block 13. In addition, two traction rods 14 are hinged on the guide block 13, and the two traction rods 14 and the guide block 13 are distributed in a Y shape. Fourth rollers 16 are installed at both ends of the second connecting rod 204. On the lifting platform 201, two fourth rollers 16 are used to increase two bending points for the bellows on the stretching and bending assembly, so that the entire section of the bellows can be more effectively detected to avoid detection omissions. A third slide groove 15 for planning the moving route of the fourth roller 16 is provided on the guide block. In the process of the vertical reciprocating movement of the guide block 13, the fourth rollers 16 at the ends of the two traction rods 14 slide back and forth along the third slide groove 15. The movement of the two fourth rollers 16 and the first roller 202 drives the bellows to bend back and forth, so that the number of bending times in the bellows can be detected, and the bellows can be more comprehensively detected.

[0042] The eccentric wheel 18, the fourth connecting rod 17 and the guide block 13 constitute a crank slider mechanism. The eccentric wheel 18 is connected to a driving motor, which is installed at the rear side of the frame 1. When the motor is working, the motor drives the fourth connecting rod 17 to rotate through the eccentric wheel 18. The rotation of the fourth connecting rod 17 drives the vertical movement of the guide block 13, so that the guide block 13 drives the two traction rods 14 to move back and forth. Furthermore, in order to change the amplitude of the vertical movement of the guide block 13, a sliding rectangular block 1803 is provided on the eccentric disk, and the rectangular block 1803 can be adjusted and changed in the fourth slide groove 1802. The third adjusting screw 1804 is rotatably connected to the turntable 1801. The turntable 1801 is the carrier and power source of the rectangular block 1803. The rotation of the third adjusting screw 1804 adjusts the position of the rectangular block 1803 on the turntable 1801, thereby driving the movement of the fourth connecting rod 17 and the guide block 13 through the rotation of the turntable.

[0043] The overall working process of the present invention is as follows: in the initial state, the lifting platform 201 and the second connecting rod 204 are adjusted to the top of the frame 1, the first roller 202 on the guide block and the third rollers 7 on both sides of the frame 1 are at the same height, the two second rollers 205 are located above the first roller 202, the bellows is placed horizontally above the first roller 202 and the two third rollers 7, and the bellows is located below the two second rollers 205. At this time, the inspection platforms 3 at both ends of the bellows fix the pipe mouth of the bellows through the pipe mouth fixing clamp 4, and at the same time, the bellows is sealed and inflated through the air plug 6 to keep the air pressure in the bellows at a certain pressure value. After the two ends of the bellows are stamped and fixed, the lifting platform 201 is adjusted to move downward. The downward movement of the lifting platform 201 drives the two second connecting rods 204 to move downward, thereby pulling the bellows downward and bending the middle part of the bellows under the action of the second roller 205 and the first roller 202. In this way, the bellows will be stretched, and the outer layer of the bellows will wrap the inner layer of the bellows to open a gap, which can avoid errors in detection. In addition, the traction bending component 2 bends the bellows back and forth, which can test the bellows' anti-bending ability, and perform double tests on the bellows' air tightness and anti-bending performance to ensure the quality of the finished bellows.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection device based on the production and processing of polytetrafluoroethylene bellows, characterized in that: The invention comprises a frame (1), wherein a traction bending assembly (2) is provided on the frame (1), and detection platforms (3) are provided on both sides of the traction bending assembly (2), wherein the detection platform (3) is fixedly connected to the frame (1), and a pipe mouth fixing clamp (4) is fixedly connected to the detection platform (3), and a slide platform (5) is provided below the pipe mouth fixing clamp (4), and the slide platform (5) is slidably connected to the detection platform (3), and an air plug (6) is fixedly connected to the slide platform (5); The traction bending assembly (2) comprises a lifting platform (201), the lifting platform (201) is rotatably connected to a first roller (202), first connecting rods (203) are hinged on both sides of the lifting platform (201), the first connecting rod (203) is hinged to a second connecting rod (204), the lower ends of the two second connecting rods (204) are rotatably connected to the frame (1), and the two second connecting rods (204) are rotatably connected to second rollers (205).

2. A detection device based on the production and processing of polytetrafluoroethylene bellows according to claim 1, characterized in that: The pipe mouth fixing clamp (4) comprises a first clamp block (401), one side of the first clamp block (401) is slidably connected to a second clamp block (402), both ends of the second clamp block (402) are hinged to third connecting rods (404), the other end of the third connecting rod (404) is hinged to an L-shaped fourth connecting rod (17), the middle part of the fourth connecting rod (17) is hinged to the detection platform (3), the fourth connecting rod (17) is provided with a guide groove, a guide pin (405) is slidably connected in the guide groove, and the guide pin (405) is fixedly connected to the slide table (5).

3. A detection device based on the production and processing of polytetrafluoroethylene bellows according to claim 2, characterized in that: A telescopic rod (406) is fixedly connected between the slide table (5) and the detection table (3); the guide groove comprises a first slide groove (407) and a second slide groove (408); the first slide groove (407) is parallel to the fourth connecting rod (17).

4. A detection device based on the production and processing of polytetrafluoroethylene bellows according to claim 2, characterized in that: The first clamping block (401) and the second clamping block (402) are both provided with V-shaped grooves (409) on their inner sides, and the first clamping block (401) and the second clamping block (402) are provided with mutually matching clamping grooves (410).

5. A detection device based on the production and processing of polytetrafluoroethylene bellows according to claim 2 or 4, characterized in that: The second clamping block (402) is fixedly connected to a connecting block (411), the connecting block (411) is slidably connected to a first support rod (412), the first support rod (412) is fixedly connected to the detection platform (3), the detection platform (3) is fixedly connected to a second support rod (413), and the second support rod (413) is slidably connected to the slide table (5).

6. The detection device based on the production and processing of polytetrafluoroethylene bellows according to claim 1 is characterized in that: The two sides of the frame (1) are rotatably connected to third rollers (7).

7. The detection device based on the production and processing of polytetrafluoroethylene bellows according to claim 1 is characterized in that: The second connecting rod (204) is provided with an adjustment groove (8), an adjustment block (9) is slidably connected in the adjustment groove (8), the adjustment block (9) is rotatably connected to the second roller (205), a first adjustment screw (10) is connected to the lower end of the adjustment block (9), a second adjustment screw (11) is fixedly connected below the lifting platform (201), and fixing nuts (12) are threadedly connected to the first adjustment screw (10) and the second adjustment screw (11).

8. A detection device based on the production and processing of polytetrafluoroethylene bellows according to claim 1 or 7, characterized in that: The first roller (202) is rotatably connected to a guide block (13), the guide block (13) is slidably connected to the lifting platform (201), the upper end of the guide block is hinged with two symmetrically distributed traction rods (14), the traction rods (14) are rotatably connected to a connecting shaft, the lifting platform (201) is provided with a third sliding groove (15) for the connecting shaft to slide, and the connecting shaft is rotatably connected to a fourth roller (16).

9. A detection device based on the production and processing of polytetrafluoroethylene bellows according to claim 8, characterized in that: A fourth connecting rod (17) is hingedly connected to the guide block (13); an eccentric wheel (18) is hingedly connected to the other end of the fourth connecting rod (17); and the eccentric wheel (18) is rotatably connected to the frame (1).

10. A detection device based on the production and processing of polytetrafluoroethylene bellows according to claim 9, characterized in that: The eccentric wheel (18) comprises a rotating disk (1801), a fourth sliding groove (1802) is formed on the rotating disk (1801), a rectangular block (1803) is slidably connected in the fourth sliding groove (1802), the rectangular block (1803) is rotationally connected to the fourth connecting rod (17), a third adjusting screw (1804) is matched on the rectangular block (1803), and the third adjusting screw (1804) is rotationally connected to the rotating disk (1801).

Images