A PTFE base fabric flattening mechanism

Abstract

The present invention relates to the technical field of fabric flattening, and specifically relates to a PTFE base fabric flattening mechanism, including: a flattening platform, at the top of which a fixed frame is fixedly connected; a partial fixing component, the partial fixing component includes two moving blocks moving in opposite directions, at the bottom ends of the moving blocks, telescopic cylinders are fixedly connected, the inner walls of the telescopic cylinders are slidably connected with sliding rods, and at the bottom ends of the sliding rods, flattening blocks are fixedly connected. When the sliding rod drives the flattening block to move downward, the conductive sheet moves synchronously on the resistance plate, and the two form a sliding rheostat. The thicker the base fabric, the greater the resistance. The PLC controller can calculate the thickness of the base fabric by detecting the current change in the circuit. At the same time, the current of the sliding rheostat will be introduced into the N-level electromagnet and the S-level electromagnet, and the magnetic field strength is changed according to the current magnitude, thereby adjusting the hardness of the magnetorheological fluid. The magnetorheological fluid generates a reaction force on the sliding rod, so as to adaptively adjust the pressure of the flattening block on the base fabric according to the thickness of the base fabric.

Description

Technical Field

[0001] The present invention relates to the technical field of cloth flattening, and particularly relates to a PTFE base cloth flattening mechanism. Background Art

[0002] The PTFE base cloth (hereinafter referred to as the base cloth) is a high-performance fiber fabric made mainly of polytetrafluoroethylene (PTFE). Generally, PTFE resin is first processed into fibers through a special process, and then these fibers are woven into a cloth-like structure through methods such as weaving. During the production process of the base cloth, it is usually necessary to flatten the base cloth. For example, a flattened base cloth can enable inspection equipment to more comprehensively and accurately conduct quality inspections on the base cloth. During thickness inspection and defect inspection, a flat surface can ensure full contact between the inspection instrument and the surface of the base cloth, obtain accurate data and image information, and timely discover quality problems such as uneven thickness, holes, and cracks in the base cloth. For example, a PTFE base cloth flattening device disclosed in application number CN202320706678.6 flattens the PTFE base cloth for subsequent processing.

[0003] When the existing flattening mechanism processes the base cloth, there are some situations where the base cloth needs to be flattened piece by piece. The reason is that when flattening the base cloth piece by piece, operators can more carefully check the quality of each piece of the base cloth, timely discover possible defects, holes, fiber breaks, etc. on the base cloth. For small pieces of the base cloth with quality problems, they can be marked or processed in time to prevent unqualified products from entering the next process;

[0004] Since the base cloth is relatively soft, when using the existing base cloth flattening mechanism to flatten the base cloth, the airflow generated by a blower is sent to a jet nozzle through a pipeline, and the jet nozzle evenly blows the airflow onto the surface of the base cloth to flatten the base cloth. Before using the airflow to flatten, it is usually necessary to fix one end of the base cloth. In this fixing process, it mostly relies on manual fixing. However, due to the softness of the base cloth, when manually fixing, it is very likely that the pulling force is too large or too small, resulting in excessive stretching or insufficient flattening of the base cloth, and then the base cloth cannot be flattened smoothly during subsequent air blowing;

[0005] Although the existing method of using air blowing to flatten the base cloth adjusts the air volume according to the thickness of the base cloth, an additional detection instrument is required to detect the thickness of the base cloth, and then the staff adjusts the air volume. It cannot automatically measure the thickness when fixing one end of the base cloth and automatically adjust the air volume according to this thickness, which increases the operation steps and time cost. Summary of the Invention

[0006] In view of the above-mentioned disadvantages of the prior art, the present invention provides a PTFE base fabric flattening mechanism, which can effectively solve the problems that when manually fixing one end of the base fabric in the prior art, it will cause the tensile force of the base fabric, and it cannot automatically measure the thickness and automatically adjust the wind force when fixing one end of the base fabric.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] The present invention provides a PTFE base fabric flattening mechanism, including:

[0009] A paving platform, the top of the paving platform is fixedly connected with a fixing frame;

[0010] A partial fixing component, the partial fixing component includes two moving blocks moving in opposite directions, the bottom ends of the moving blocks are fixedly connected with telescopic cylinders, the inner walls of the telescopic cylinders are slidably connected with sliding rods, the bottom ends of the sliding rods are fixedly connected with smoothing blocks, and the partial fixing component further includes a thickness detection structure for detecting the thickness of the base fabric;

[0011] A flattening component, the flattening component includes a first blower for horizontal flattening, the top of the first blower is fixedly connected with a first electric telescopic rod, the outer wall of the telescopic end of the first electric telescopic rod is fixedly connected with two symmetrically arranged support plates, the outer walls of the two support plates are respectively fixedly connected with a first motor, the output ends of the two first motors are fixedly connected with rotating rods, and the driving directions of the two first motors are opposite, and a plurality of second blowers are circumferentially arranged on the outer wall of the rotating rod.

[0012] Preferably, the partial fixing component further includes a first sliding shell fixedly connected to the inner wall of the fixing frame, a second motor is fixedly connected to the outer wall of the fixing frame, the output end of the second motor is fixedly connected with a first reciprocating screw rod, the other end of the first reciprocating screw rod is fixedly connected with a second reciprocating screw rod, the driving directions of the first reciprocating screw rod and the second reciprocating screw rod are opposite, the two moving blocks are respectively sleeved on the outer walls of the first reciprocating screw rod and the second reciprocating screw rod, and the moving blocks are slidably connected with the inner wall of the first sliding shell.

[0013] Preferably, a liquid storage tank is fixedly connected to the outer wall of the first sliding shell, a magnetorheological fluid is filled in the liquid storage tank, two symmetrically arranged liquid extraction pumps are fixedly connected to the bottom end of the liquid storage tank, the liquid extraction ends of the liquid extraction pumps are communicated with the inside of the liquid storage tank, the output ends of the two liquid extraction pumps are respectively connected to the inside of the two telescopic cylinders, and two symmetrically arranged storage grooves are opened in the inside of the telescopic cylinder, and an N-level electromagnet and an S-level electromagnet are respectively fixedly connected to the inner walls of the two storage grooves.

[0014] Preferably, the thickness detection structure includes an extension plate fixedly connected to the outer wall of one of the telescopic cylinders. The other end of the extension plate is fixedly connected with a resistance plate. A conductive sheet fixedly connected to the outer wall of the sliding rod is in sliding contact with the outer wall of the resistance plate. A pressure sensor is embedded at the bottom end of the smoothing block. The conductive sheet and the resistance plate are electrically connected to a PLC controller to form a detection circuit. The conductive sheet and the resistance plate form a sliding rheostat. During the downward sliding process of the conductive sheet on the resistance plate, the resistance of the sliding rheostat in the first detection circuit gradually increases. The N - pole electromagnet, the S - pole electromagnet and the sliding rheostat are electrically connected to form a pressure adaptive adjustment circuit. The PLC controller is electrically connected to the pressure sensor and the liquid extraction pump to form a control circuit.

[0015] Preferably, the paving assembly includes a bearing plate fixedly connected to the outer wall of the fixed frame away from the first sliding shell. A second sliding shell is fixedly connected between the inner wall of the bearing plate and the first sliding shell. A third motor is fixedly connected to the outer wall of the bearing plate. The output end of the third motor is fixedly connected with a threaded rod. A connecting block is threadedly connected to the outer wall of the threaded rod. The outer wall of the connecting block is slidably connected to the inner wall of the second sliding shell. The bottom end of the connecting block is fixedly connected to the fixed end of the first electric telescopic rod.

[0016] Preferably, the blowing end of the first blower is inclined downward and towards the side away from the smoothing block. The blowing ends of the plurality of second blowers blow air horizontally against the base fabric. The first blower, the second blower and the PLC controller are electrically connected to form a paving circuit.

[0017] Preferably, it further includes an electrostatic removal assembly. The electrostatic removal assembly includes a fixing plate fixedly connected to the output ends of two second motors. An inclined - downward conductive scraping plate is fixedly connected to the outer wall of the fixing plate. Conductive rods are fixedly connected to the outer walls on both sides of the conductive scraping plate. Grounded power - on sheets are fixedly connected to the inner walls on both sides of the fixed frame. The conductive rods are in intermittent contact with the grounded power - on sheets, and the inclined direction of the conductive scraping plate faces the first blower. The PLC controller is electrically connected to the first motor, the second motor and the third motor to form a start - up circuit.

[0018] Preferably, infrared emitters are fixedly connected to the tops of both of the support plates. An inner top wall of the fixing frame is fixedly connected with two columns of infrared receivers, and the two columns of infrared receivers are distributed on both sides of the second sliding shell. Infrared receivers in each column and one infrared emitter on the same side are in the same longitudinal horizontal plane. A second electric telescopic rod is arranged on one side of each infrared receiver away from the second sliding shell. A fixed end of the second electric telescopic rod is fixedly connected to the top of the fixing frame. A telescopic end of each second electric telescopic rod is fixedly connected with a pressing block. The PLC controller is electrically connected to the infrared receivers, the infrared emitters, and the second electric telescopic rods to form a fixed circuit.

[0019] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art:

[0020] 1. When the sliding rod drives the smoothing block to move downward, the conductive sheet moves synchronously on the resistance plate, and the two constitute a sliding rheostat. The thicker the base fabric, the greater the resistance. The PLC controller can calculate the thickness of the base fabric by detecting the current change in the circuit. At the same time, the current of the sliding rheostat will be introduced into the N - pole electromagnet and the S - pole electromagnet, and the magnetic field intensity will be changed according to the current magnitude, thereby adjusting the hardness of the magnetorheological fluid. The magnetorheological fluid generates a reaction force on the sliding rod, so as to adaptively adjust the pressure of the smoothing block on the base fabric according to the thickness of the base fabric. In this way, no matter what the thickness of the base fabric is, the smoothing block can act on the base fabric with an appropriate pressure, avoiding damage to the base fabric or poor smoothing effect caused by improper pressure. Finally, the smoothing block moves to opposite sides to fix one end of the base fabric.

[0021] 2. In the paving assembly, the first blower blows air horizontally on the base fabric. At the same time, the first motor drives the rotating rod to rotate, so that a plurality of second blowers distributed in a circumferential array rotate accordingly, thereby applying wind force to the base fabric from different angles. These wind forces will generate a force that causes the base fabric to stretch to both sides, thereby stretching the base fabric and unfolding the wrinkles. In addition, the PLC controller can control the air output of the first blower and the second blower according to the thickness of the base fabric. This multi - angle blowing method can stretch the wrinkles in different directions on the base fabric more effectively than the wind force in a fixed direction, and thus better eliminate complex and irregular wrinkles, further improving the flatness of the base fabric. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 Schematic diagram of the internal partial three-dimensional structure of the present invention;

[0025] Figure 3 Schematic diagram of the partial sectional three-dimensional structure of the present invention;

[0026] Figure 4 Schematic diagram of the internal partial sectional three-dimensional structure of the present invention;

[0027] Figure 5 Schematic diagram of the partial three-dimensional structure of the present invention;

[0028] Figure 6 Schematic diagram of the three-dimensional structure of the local fixing component of the present invention.

[0029] Reference numerals: 1, laying platform; 2, fixing frame; 3, local fixing component; 31, moving block; 32, telescopic cylinder; 33, sliding rod; 34, smoothing block; 35, thickness detection structure; 351, extension plate; 352, resistance plate; 353, conductive sheet; 36, first sliding shell; 37, second motor; 38, first reciprocating lead screw; 39, second reciprocating lead screw; 310, liquid storage tank; 311, liquid pumping pump; 312, storage tank; 313, N-level electromagnet; 314, S-level electromagnet; 4, paving component; 41, first blower; 42, second blower; 43, first electric telescopic rod; 44, support plate; 45, first motor; 46, rotating rod; 47, bearing plate; 48, second sliding shell; 49, third motor; 410, threaded rod; 411, connecting block; 5, static electricity removal component; 51, fixing plate; 52, conductive scraper; 53, conductive rod; 54, grounding energized sheet; 6, infrared emitter; 7, infrared receiver; 8, second electric telescopic rod; 9, extrusion block. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] The present invention will be further described below with reference to the embodiments.

[0032] Embodiment: Refer to Figures 1 to 6 , a PTFE base fabric paving mechanism, including:

[0033] Laying platform 1, a fixing frame 2 is fixedly connected to the top end of the laying platform 1;

[0034] One end of the base fabric is flattened and fixed through the local fixing component 3, referring to Figure 1 , Figure 3 , Figure 4 , Figure 6 , the local fixing component 3 includes two moving blocks 31 moving in opposite directions. The bottom ends of the moving blocks 31 are fixedly connected with telescopic cylinders 32. A sliding rod 33 is slidably connected to the inner wall of the telescopic cylinder 32. The bottom end of the sliding rod 33 is fixedly connected with a smoothing block 34. The local fixing component 3 further includes a thickness detection structure 35 for detecting the thickness of the base fabric;

[0035] Among them, the local fixing component 3 further includes a first sliding shell 36 fixedly connected to the inner wall of the fixing frame 2. A second motor 37 is fixedly connected to the outer wall of the fixing frame 2. The output end of the second motor 37 is fixedly connected with a first reciprocating lead screw 38. The other end of the first reciprocating lead screw 38 is fixedly connected with a second reciprocating lead screw 39. The driving directions of the first reciprocating lead screw 38 and the second reciprocating lead screw 39 are opposite. The two moving blocks 31 are respectively sleeved on the outer walls of the first reciprocating lead screw 38 and the second reciprocating lead screw 39. The moving block 31 is slidably connected to the inner wall of the first sliding shell 36.

[0036] Among them, a liquid storage tank 310 is fixedly connected to the outer wall of the first sliding shell 36. The inside of the liquid storage tank 310 is filled with magnetorheological fluid. Two symmetrically arranged liquid extraction pumps 311 are fixedly connected to the bottom end of the liquid storage tank 310. The liquid extraction ends of the liquid extraction pumps 311 communicate with the inside of the liquid storage tank 310. The output ends of the two liquid extraction pumps 311 are respectively connected to the inside of the two telescopic cylinders 32. Two symmetrically arranged storage grooves 312 are opened in the inside of the telescopic cylinder 32. N - pole electromagnets 313 and S - pole electromagnets 314 are fixedly connected to the inner walls of the two storage grooves 312 respectively. The output end of the liquid extraction pump 311 is connected to the inside of the telescopic cylinder 32 through a flexible delivery pipe.

[0037] The thickness of the base fabric is detected through the following specific structure, referring to Figure 6, the thickness detection structure 35 includes an extension plate 351 fixedly connected to the outer wall of one of the telescopic cylinders 32. The other end of the extension plate 351 is fixedly connected to a resistance plate 352. A conductive sheet 353 fixedly connected to the outer wall of the slide bar 33 is in sliding contact with the outer wall of the resistance plate 352. A pressure sensor is embedded at the bottom end of the flattening block 34. The conductive sheet 353 and the resistance plate 352 are electrically connected to a PLC controller to form a detection circuit. The conductive sheet 353 and the resistance plate 352 constitute a sliding rheostat. During the downward sliding process of the conductive sheet 353 on the resistance plate 352, the resistance of the sliding rheostat in the first detection circuit gradually increases. The N - pole electromagnet 313, the S - pole electromagnet 314 are electrically connected to the sliding rheostat to form a pressure adaptive adjustment circuit. The PLC controller is electrically connected to the pressure sensor and the liquid extraction pump 311 to form a control circuit.

[0038] The base fabric is flattened by the flattening assembly 4. Refer to Figures 1 to 3 , Figure 5 , the flattening assembly 4 includes a first blower 41 for horizontal leveling. The top end of the first blower 41 is fixedly connected to a first electric telescopic rod 43. Two symmetrically arranged support plates 44 are fixedly connected to the outer wall of the telescopic end of the first electric telescopic rod 43. First motors 45 are respectively fixedly connected to the outer walls of the two support plates 44. The output ends of the two first motors 45 are fixedly connected to a rotating rod 46, and the driving directions of the two first motors 45 are opposite. A plurality of second blowers 42 are circumferentially arranged on the outer wall of the rotating rod 46.

[0039] Among them, the flattening assembly 4 includes a bearing plate 47 fixedly connected to the outer wall of the fixed frame 2 away from the first sliding shell 36. A second sliding shell 48 is fixedly connected between the inner wall of the bearing plate 47 and the first sliding shell 36. A third motor 49 is fixedly connected to the outer wall of the bearing plate 47. The output end of the third motor 49 is fixedly connected to a threaded rod 410. A connecting block 411 is threadedly connected to the outer wall of the threaded rod 410. The outer wall of the connecting block 411 is slidably connected to the inner wall of the second sliding shell 48. The bottom end of the connecting block 411 is fixedly connected to the fixed end of the first electric telescopic rod 43. Among them, the second sliding shell 48 is driven to rotate by the third motor 49 and the connecting block 411 is limited by the second sliding shell 48, so that the connecting block 411 drives the flattening assembly 4 to move to flatten all the base fabric.

[0040] Among them, the blowing end of the first blower 41 is inclined downward and faces away from the flattening block 34. The blowing ends of the plurality of second blowers 42 blow the base fabric horizontally. The first blower 41, the second blowers 42 are electrically connected to the PLC controller to form a flattening circuit.

[0041] The static electricity on the base fabric is removed by the static electricity removing assembly 5. Refer to Figure 2, the static electricity removal component 5 includes a fixing plate 51 fixedly connected to the output ends of two second motors 37. An inclined downward conductive scraping plate 52 is fixedly connected to the outer wall of the fixing plate 51. Conductive rods 53 are fixedly connected to both outer walls of the conductive scraping plate 52. Grounded power-on pieces 54 are fixedly connected to both inner walls of the fixing frame 2. The conductive rods 53 are in intermittent contact with the grounded power-on pieces 54, and the inclined direction of the conductive scraping plate 52 faces the first blower 41. The PLC controller is electrically connected to the first motor 45, the second motor 37, and the third motor 49 to form a startup circuit.

[0042] The flattened base fabric is fixed through the following specific structure. Refer to Figure 5 , infrared transmitters 6 are fixedly connected to the tops of both support plates 44. Two rows of infrared receivers 7 are fixedly connected to the inner top wall of the fixing frame 2, and the two rows of infrared receivers 7 are distributed on both sides of the second sliding shell 48. And each infrared receiver 7 in each row and an infrared transmitter 6 on the same side are in the same longitudinal horizontal plane. A second electric telescopic rod 8 is provided on the side of each infrared receiver 7 away from the second sliding shell 48. The fixed end of the second electric telescopic rod 8 is fixedly connected to the top of the fixing frame 2, and the telescopic ends of the second electric telescopic rods 8 are fixedly connected with pressing blocks 9. The PLC controller is electrically connected to the infrared receivers 7, the infrared transmitters 6, and the second electric telescopic rods 8 to form a fixing circuit.

[0043] The working principle of the present invention is as follows:

[0044] First, place a piece of base fabric on the laying platform 1, then place one end directly below the flattening block 34, and after placement, the two sides of the base fabric need to be symmetrical and not severely offset (slight offset is allowed). Then start the liquid pumping pump 311, pump out the magnetorheological fluid in the liquid storage tank 310 through the liquid pumping pump 311, and then discharge it into the telescopic cylinder 32, thereby pushing the sliding rod 33 to move downward, and then the sliding rod 33 drives the flattening block 34 to contact the base fabric. After contacting the base fabric, the pressure sensor will sense an electrical signal. After the pressure sensor senses the electrical signal, it means that the flattening block 34 is in contact with the base fabric. However, in order to ensure a certain pressure on the base fabric (for subsequent flattening of the base fabric), a little more magnetorheological fluid needs to be injected into the telescopic cylinder 32 (the injection amount is proportional to the thickness of the base fabric);

[0045] While the sliding rod 33 drives the flattening block 34 to move downward, it will drive the conductive sheet 353 to move downward synchronously on the resistance plate 352, thereby changing the current passing through the sliding rheostat (the thicker the base fabric, the greater the resistance of the resistance plate 352, and the greater the current passing through the N - pole electromagnet 313 and the S - pole electromagnet 314). Then, the current detection module in the PLC controller detects the magnitude of the current, and then calculates the thickness of the base fabric based on this current;

[0046] Then, current is passed through the N - pole electromagnet 313 and the S - pole electromagnet 314 via a rheostat. Since magnetorheological fluid usually consists of micron - sized magnetic particles, a carrier liquid, and additives, when there is no external magnetic field, the magnetorheological fluid exhibits the characteristics of a fluid and can flow freely. The magnetic field intensity of the N - pole electromagnet 313 and the S - pole electromagnet 314 is proportional to the magnitude of the current passing through them. By increasing the current in the N - pole electromagnet 313 and the S - pole electromagnet 314, the magnetic field intensity can be enhanced, thereby causing the magnetic particles in the magnetorheological fluid to be subjected to a stronger magnetic force, forming more and denser chain - like or columnar structures, making the magnetorheological fluid harder (even when the current passing through the N - pole electromagnet 313 and the S - pole electromagnet 314 is at its maximum, the magnetorheological fluid will not be extremely hard). The reason is that when the current passed through the N - pole electromagnet 313 and the S - pole electromagnet 314 decreases from a large value, the reaction force of the magnetorheological fluid on the slide rod 33 gradually decreases. Since the thinner base fabric has good flexibility, when the two smoothing blocks 34 move in opposite directions, it can easily conform to their movement, and the normal pressure between it and the smoothing blocks 34 and other contact surfaces is small, so the resistance during the smoothing process is small, and it can be smoothed without much pressure; while the thicker base fabric has greater rigidity and stronger resistance to deformation, and due to factors such as its own large weight, the normal pressure and frictional force with the smoothing blocks 34 and other contact surfaces are large. During the smoothing process, a greater frictional force needs to be overcome, so a slightly larger pressure is required to make the smoothing blocks 34 move in the opposite direction and smooth it. The process of the smoothing block 34 smoothing the base fabric is as follows:

[0047] First, after the electrical signal sent by the pressure sensor is received by the PLC controller, the PLC controller controls the second motor 37 to start. The second motor 37 drives the first reciprocating lead screw 38 and the second reciprocating lead screw 39 to rotate synchronously. Since the driving moving blocks 31 of the first reciprocating lead screw 38 and the second reciprocating lead screw 39 move in opposite directions, the moving blocks 31 will drive the telescopic cylinder 32, the slide rod 33, and the smoothing blocks 34 to move to both sides on the surface of the base fabric, thereby smoothing the base fabric. Through manual observation, when the smoothing blocks 34 move to the two ends of the base fabric, the second motor 37 is manually turned off to fix the base fabric by the extrusion of the smoothing blocks 34.

[0048] Then, the PLC controller is used to control the start of the third motor 49, the first motor 45, the first blower 41, the second blower 42, and start the first electric telescopic rod 43 (the extended length of the first electric telescopic rod 43 is calculated according to the thickness of the base fabric, so that the bottom end of the conductive scraper 52 contacts the upper surface of the base fabric). The third motor 49 drives the threaded rod 410 to rotate. Through the rotation of the threaded rod 410 and the limit of the second sliding shell 48 on the connecting block 411, the connecting block 411 drives the first electric telescopic rod 43, the first blower 41, the first motor 45, and the second blower 42 to move synchronously. Among them, the air volume of the first blower 41 and the second blower 42 is controlled by the PLC controller, and the air volume is proportional to the thickness of the base fabric. The base fabric is blown horizontally by the first blower 41, and the base fabric is blown flat by the wind. During the movement of the first blower 41, the first motor 45 also drives the rotating rod 46 to rotate. The rotating rod 46 drives the second blower 42 to rotate. The wind blown by the second blower 42 exerts a force on the surface of the base fabric. When the wind blows horizontally towards both sides of the base fabric, a force that stretches the base fabric towards both sides will be generated. This force can stretch the base fabric and unfold the possible wrinkles or unevenness on the base fabric. The rotating second blower 42 can apply wind force to the base fabric from different angles. When the second blower 42 is in different rotating positions, the direction of the force exerted by the wind on the base fabric will change. This multi-angle force can more effectively stretch the wrinkles in different directions on the base fabric, enabling the base fabric to be fully stretched and smoothed in all directions. Compared with the wind force in a fixed direction, it can better eliminate complex and irregular wrinkles and improve the flatness of the base fabric.

[0049] And during this process, when the conductive scraper 52 contacts the surface of the base fabric, the static electricity is transmitted to the grounded energized sheet 54 through the conductive rod 53. These static charges will quickly spread to the ground and neutralize with the opposite charges in the ground, thereby eliminating the static electricity on the surface of the base fabric and finally restoring the charge distribution on the surface of the base fabric to a balanced state, thus preventing the influence of static electricity on the wind smoothing.

[0050] And during the movement of the support plate 44, it will drive the two infrared transmitters 6 to move synchronously. When the infrared receiver 7 receives the infrared rays emitted by the infrared transmitter 6, it means that the first blower 41 and the second blower 42 are smoothing the base fabric. When the infrared receiver 7 that has just received the infrared rays can no longer receive the infrared rays, it means that the first blower 41 and the second blower 42 have continued to move forward for smoothing. Therefore, the PLC controller can be used to control the start of the second electric telescopic rod 8, and the second electric telescopic rod 8 drives the extrusion block 9 to move downward, thereby extruding and fixing the base fabric.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A PTFE base fabric paving mechanism, characterized in that: include: A paving platform (1), wherein the top of the paving platform (1) is fixedly connected to a fixing frame (2); A local fixing component (3), the local fixing component (3) comprising two moving blocks (31) moving in opposite directions, the bottom ends of the moving blocks (31) being fixedly connected to telescopic cylinders (32), the inner wall of the telescopic cylinders (32) being slidably connected to a slide rod (33), the bottom end of the slide rod (33) being fixedly connected to a smoothing block (34), the local fixing component (3) further comprising a thickness detection structure (35) for detecting the thickness of the base fabric; The inner wall of the fixed frame (2) is fixedly connected to a first sliding shell (36), the outer wall of the first sliding shell (36) is fixedly connected to a liquid storage tank (310), the interior of the liquid storage tank (310) is perfused with magnetorheological fluid, the bottom end of the liquid storage tank (310) is fixedly connected to two symmetrical liquid pumps (311), the liquid pumping ends of the liquid pumps (311) are in communication with the interior of the liquid storage tank (310), the output ends of the two liquid pumps (311) are respectively in communication with the interior of two telescopic cylinders (32), the interior of the telescopic cylinder (32) is provided with two symmetrical storage grooves (312), the inner walls of the two storage grooves (312) are respectively fixedly connected to an N-class electromagnet (313) and an S-class electromagnet (314); The thickness detection structure (35) comprises an extension plate (351) fixedly connected to the outer wall of one of the telescopic cylinders (32), the other end of the extension plate (351) being fixedly connected to a resistor plate (352), the outer wall of the resistor plate (352) being in sliding contact with a conductive sheet (353) fixedly connected to the outer wall of the slide rod (33), a pressure sensor being embedded at the bottom end of the smoothing block (34), the conductive sheet (353) and the resistor plate (352) being electrically connected to a PLC controller to form a detection circuit, the conductive sheet (353) and the resistor plate (352) forming a sliding rheostat, when the conductive sheet (353) slides downward on the resistor plate (352), the resistance of the sliding rheostat in the first detection circuit gradually increases, the N-level electromagnet (313), the S-level electromagnet (314) being electrically connected to the sliding rheostat to form a pressure self-adaptive regulation circuit, and the PLC controller being electrically connected to the pressure sensor and the liquid pump (311) to form a control circuit; A paving assembly (4), the paving assembly (4) comprising a first blower (41) for horizontal flattening, the top end of the first blower (41) being fixedly connected to a first electric telescopic rod (43), the outer wall of the telescopic end of the first electric telescopic rod (43) being fixedly connected to two symmetrical support plates (44), the outer walls of the two support plates (44) being respectively fixedly connected to first motors (45), the output ends of the two first motors (45) being fixedly connected to rotating rods (46), the driving directions of the two first motors (45) being opposite, and a plurality of second blowers (42) being arranged in a circular array on the outer wall of the rotating rod (46).

2. A PTFE base fabric flattening mechanism according to claim 1, characterized in that: The local fixing assembly (3) further comprises a second motor (37) fixedly connected to the outer wall of the fixing frame (2); an output end of the second motor (37) is fixedly connected to a first reciprocating screw (38); the other end of the first reciprocating screw (38) is fixedly connected to a second reciprocating screw (39); the driving directions of the first reciprocating screw (38) and the second reciprocating screw (39) are opposite; the two moving blocks (31) are respectively sleeved on the outer walls of the first reciprocating screw (38) and the second reciprocating screw (39); and the moving blocks (31) are slidably connected to the inner wall of the first sliding shell (36).

3. A PTFE base fabric paving mechanism according to claim 2, characterized in that: The paving assembly (4) comprises a bearing plate (47) fixedly connected to the fixing frame (2) away from the outer wall of the first sliding shell (36); a second sliding shell (48) is fixedly connected between the inner wall of the bearing plate (47) and the first sliding shell (36); a third motor (49) is fixedly connected to the outer wall of the bearing plate (47); a threaded rod (410) is fixedly connected to the output end of the third motor (49); a connecting block (411) is threadedly connected to the outer wall of the threaded rod (410); an outer wall of the connecting block (411) is slidably connected to the inner wall of the second sliding shell (48); and a bottom end of the connecting block (411) is fixedly connected to the fixed end of the first electric telescopic rod (43).

4. A PTFE base fabric paving mechanism according to claim 3, characterized in that: The blowing end of the first blower (41) is tilted downward and faces a side away from the smoothing block (34), and the blowing ends of the plurality of second blowers (42) blow air horizontally to the base fabric. The first blower (41) and the second blower (42) are connected to the PLC controller via electrical signals to form a paving circuit.

5. A PTFE base fabric flattening mechanism according to claim 3, characterized in that: It also comprises a static electricity removal component (5), the static electricity removal component (5) comprising a fixed plate (51) fixedly connected to the output ends of the two second motors (37), the outer wall of the fixed plate (51) being fixedly connected to a conductive scraper (52) inclined downward, the outer walls on both sides of the conductive scraper (52) being fixedly connected to conductive rods (53), the inner walls on both sides of the fixed frame (2) being fixedly connected to grounding power sheets (54), the conductive rods (53) being in intermittent contact with the grounding power sheets (54), and the conductive scraper (52) being inclined in a direction toward the first blower (41), and the PLC controller being connected to the first motor (45), the second motor (37), and the third motor (49) by electrical signals to form a start-up circuit.

6. A PTFE base fabric flattening mechanism according to claim 3, characterized in that: The top ends of the two support plates (44) are fixedly connected to an infrared transmitter (6), the inner top wall of the fixed frame (2) is fixedly connected to two rows of infrared receivers (7), and the two rows of infrared receivers (7) are distributed on both sides of the second sliding shell (48), and the infrared receivers (7) in each row and an infrared transmitter (6) on the same side are located in the same longitudinal horizontal plane, and a second electric telescopic rod (8) is provided on a side of each infrared receiver (7) away from the second sliding shell (48), the fixed end of the second electric telescopic rod (8) is fixedly connected to the top end of the fixed frame (2), and the telescopic end of the second electric telescopic rod (8) is fixedly connected to an extrusion block (9), and the PLC controller is connected to the infrared receiver (7), the infrared transmitter (6), and the second electric telescopic rod (8) by electrical signals to form a fixed loop.

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