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CN-122008464-A - Polyvinylidene fluoride PVDF membrane making device

CN122008464ACN 122008464 ACN122008464 ACN 122008464ACN-122008464-A

Abstract

The invention relates to the technical field of high polymer material film making equipment, in particular to a polyvinylidene fluoride PVDF film making device, which comprises a conveyor, wherein the middle part of a frame of the conveyor is fixedly connected with a supporting beam seat, the opposite sides of two vertical rods of the supporting beam seat are respectively provided with an obliquely arranged mounting frame, and the interiors of the two mounting frames are provided with obliquely arranged scrapers. The polyvinylidene fluoride PVDF film making device realizes real-time accurate correction of the offset and the angle of the scraper, the position offset and the angle offset of the scraper are monitored in real time through the detection head, the driving cylinder is triggered to drive the linkage mechanism to act, the offset correction is realized by means of clamping of the alignment clamping plate to the positioning block, meanwhile, the angle correction is completed through the lamination clamping of the guide plate and the positioning block, the scraper is ensured to be always in the optimal working posture through a dual correction mechanism, the thickness uniformity and the surface flatness of the PVDF film are effectively improved, and the reject ratio of products is remarkably reduced.

Inventors

  • CAI XIANGYU
  • WANG SHUANG
  • XU JIAWANG
  • LV DONG
  • GAO ZIJIE

Assignees

  • 中恒新材料科技(山东)有限责任公司

Dates

Publication Date
20260512
Application Date
20260325

Claims (10)

  1. 1. The polyvinylidene fluoride PVDF film making device comprises a conveyor (1), wherein a supporting beam seat (2) is fixedly connected to the middle of a frame of the conveyor (1), installation frames (3) which are obliquely arranged are installed on opposite sides of two vertical rods of the supporting beam seat (2), and scrapers (4) which are obliquely arranged are installed in the two installation frames (3); The automatic correction device is characterized by further comprising two guide plates (7) and four alignment clamping plates (76), wherein the two guide plates (7) are respectively and correspondingly distributed on two sides of the scraper (4), positioning blocks (77) are fixedly arranged on two sides of the scraper (4), the four alignment clamping plates (76) are symmetrically arranged in a parallel mode in a group, the two groups of alignment clamping plates (76) are respectively hinged to one side, facing the scraper (4), of the two guide plates (7) respectively clamp the positioning blocks (77) on two sides of the scraper (4) through the four alignment clamping plates (76), and accurate correction of the offset of the scraper (4) is achieved.
  2. 2. The polyvinylidene fluoride PVDF film making device according to claim 1, wherein a fixing frame (5) is fixedly arranged at the bottom of a cross beam of the supporting beam seat (2), an inverted U-shaped shell (6) matched with the inclination angle of the scraper (4) is arranged at the bottom of the fixing frame (5), the inverted U-shaped shell (6) is arranged outside the scraper (4) through an inverted U-shaped mask, two guide plates (7) are slidably arranged on the inner wall of the inverted U-shaped shell (6), and the sliding direction of the guide plates (7) is perpendicular to the length direction of the scraper (4).
  3. 3. The polyvinylidene fluoride PVDF film making device according to claim 2, wherein a driving cylinder (61) is fixedly arranged at the top of the inner wall of the inverted U-shaped shell (6), the telescopic end of the driving cylinder (61) extends into the inverted U-shaped shell (6) and is fixedly connected with a pushing plate (62), two ends of the pushing plate (62) are hinged with deflection plates (63), one end, far away from the pushing plate (62), of the deflection plates (63) is hinged with a pushing plate (64), the pushing plate (64) is hinged in a through groove (65) formed in the side face of the inverted U-shaped shell (6), and the pushing plate (64) can deflect along the through groove (65).
  4. 4. The polyvinylidene fluoride PVDF film making machine according to claim 3, wherein the guide plate (7) is hinged with four deflection plates (75) towards one side of the scraper (4), two of the four deflection plates (75) are arranged in parallel, and the alignment clamping plate (76) is hinged between the deflection plates (75) of the corresponding group; The two deflection plates (75) positioned on the inner sides of the four deflection plates (75) are hinged with transmission rods (79), the middle parts of the transmission rods (79) are rotationally connected to the hinged positions of the deflection plates (75) and the guide plates (7), one ends of the transmission rods (79) away from the deflection plates (75) are hinged with power plates (710), H-shaped plates (78) are hinged between the four power plates (710), the H-shaped plates (78) are overlapped with the end parts of push plates (64) on the corresponding sides of the H-shaped plates, and the H-shaped plates (78) can be pushed to move when the push plates (64) deflect.
  5. 5. The polyvinylidene fluoride PVDF film forming machine according to claim 4, wherein a limiting telescopic rod is connected between the H-shaped plate (78) and the guide plate (7) and used for limiting the H-shaped plate (78) to move along the direction perpendicular to the guide plate (7), and a buffer block is arranged on one side of the H-shaped plate (78) towards the pushing plate (64) and used for buffering the extrusion force exerted by the pushing plate (64).
  6. 6. The polyvinylidene fluoride PVDF film making device according to claim 1, wherein the two ends of the guide plate (7) are provided with T-shaped guide grooves (71), a sliding plate (72) is connected in a sliding manner in the T-shaped guide grooves (71), two damping spring telescopic rods (73) are hinged to the side face of the sliding plate (72), the two damping spring telescopic rods (73) are distributed in a vertical splayed manner, and one end, far away from the sliding plate (72), of each damping spring telescopic rod 73 is hinged to the guide plate (7); the sliding plate (72) is abutted in a slot (74) formed in the inner wall of the inverted U-shaped shell (6) through two damping spring telescopic rods (73), and a roller is rotatably connected to the side face of one end of the sliding plate (72) inserted into the slot (74) for reducing sliding friction force.
  7. 7. The polyvinylidene fluoride PVDF film forming device according to claim 6, wherein the alignment clamping plate (76) is fixedly connected with a sliding plate (8), the sliding plate (8) is fixedly connected with a spring expansion plate (81), and the lower end of an inner rod of the spring expansion plate (81) is abutted against the top of the guide plate (7) and used for limiting the relative displacement between the alignment clamping plate (76) and the guide plate (7).
  8. 8. The polyvinylidene fluoride PVDF film forming device according to claim 6, wherein an inclined surface block (84) is fixedly connected to the side surface of the damping spring telescopic rod (73) located on the upper side, the spring telescopic plate (81) is matched with the inclined surface block (84), the spring telescopic plate (81) extrudes the inclined surface block (84) to drive the damping spring telescopic rod (73) to deflect, and the sliding plate (72) is pulled to slide in the T-shaped guide groove (71).
  9. 9. The polyvinylidene fluoride PVDF film forming device according to claim 2, wherein the F-shaped buckle plate (82) is fixedly connected to the sliding plate (72), one side of the F-shaped buckle plate (82) is provided with an L-shaped buckle plate (83) which is matched and buckled with the F-shaped buckle plate, and the L-shaped buckle plate (83) is fixed on the inner wall of the inverted U-shaped shell (6) and used for locking the position of the guide plate (7).
  10. 10. The polyvinylidene fluoride PVDF film forming device according to claim 2, wherein a detection head (9) is fixedly connected to the side face of the frame of the conveyor (1), and the detection head (9) is located on one side of the scraper (4) and is electrically connected with the driving cylinder (61) and used for detecting the offset of the scraper (4) and triggering the driving cylinder (61) to act.

Description

Polyvinylidene fluoride PVDF membrane making device Technical Field The invention relates to the technical field of high polymer material film making equipment, in particular to a scraper type film making device for preparing a polyvinylidene fluoride (PVDF) film, and particularly relates to a PVDF film making scraper positioning and stabilizing device with an automatic offset correcting function. Background Polyvinylidene fluoride (PVDF) is used as a high polymer material with excellent corrosion resistance, high temperature resistance and mechanical strength, and the film product is widely applied to high-end fields such as water treatment filtration, electronic device packaging, medical consumables and the like. In the PVDF film making process, the scraper blade coating process is a core link for determining the thickness uniformity and the surface flatness of the film, and the installation precision and the operation stability of the scraper directly influence the performance index of the final film product. However, the existing PVDF membrane makers have the following technical drawbacks in actual operation: the scraper is subjected to the influence of raw material impact, equipment vibration and temperature change for a long time, and is easy to generate transverse deviation or angle inclination, so that the quality problems of uneven film thickness, edge wrinkling and the like are caused, and particularly in continuous mass production, the problem can obviously reduce the qualification rate of products; the traditional doctor correction mode is mostly dependent on manual periodic detection and adjustment, so that the efficiency is low, errors exist in manual judgment, and real-time dynamic correction cannot be realized; Part of the existing automatic correction devices have complex structures, instantaneous impact force is easy to generate in the correction process, so that a scraper or a mounting structure is damaged, and meanwhile, the corrected locking reliability is insufficient, and secondary offset is easy to occur; The matching adaptability of the correcting mechanism and the scraper is poor, the offset and the angle cannot be doubly corrected, the linkage response is lagged, and the process requirement of high-precision film making is difficult to meet. Therefore, developing a PVDF membrane making device which can detect in real time, automatically and accurately correct, is stable in clamping and has small damage to equipment becomes a key requirement for solving the pain point in the prior art. Disclosure of Invention The invention aims to provide a polyvinylidene fluoride PVDF membrane making device, which aims to solve the problem that the existing PVDF membrane making device is difficult to automatically correct in the background technology. In order to achieve the aim, the invention provides the technical scheme that the polyvinylidene fluoride PVDF film making device comprises a conveyor, wherein the middle part of a frame of the conveyor is fixedly connected with a supporting beam seat, the opposite sides of two vertical rods of the supporting beam seat are respectively provided with an obliquely arranged mounting frame, and the inside of the two mounting frames is provided with an obliquely arranged scraper; Still include two deflector and four counterpoint cardboard, two deflector correspond respectively and distribute in the both sides of scraper, and the equal fixed mounting in both sides of scraper has the locating piece, and four counterpoint cardboard use two to set up as a set of parallel symmetry, and two sets of counterpoint cardboard articulate respectively in two deflector towards one side of scraper, and two deflector pass through the locating piece of four counterpoint cardboard centre gripping scraper both sides respectively, realize the accurate correction of scraper offset. Preferably, the bottom fixed mounting of supporting beam seat crossbeam has fixed frame, and the bottom of fixed frame is installed and is established outside the scraper with the inverted U-shaped casing of scraper inclination adaptation, inverted U-shaped casing through inverted U-shaped gauze mask, and two deflector slides and sets up at inverted U-shaped shells inner wall, and the direction of sliding of deflector is perpendicular to the length direction of scraper. Preferably, the inner wall top fixed mounting of the reverse U-shaped casing has the actuating cylinder, and the flexible end of actuating cylinder extends to the inside fixedly connected with push pedal of reverse U-shaped casing, and the both ends of push pedal all articulate there is the deflector, and the one end that the deflector kept away from the push pedal articulates there is the push plate, and the push plate articulates in the logical inslot of seting up of reverse U-shaped casing side, and the push plate can follow logical groove deflection. Preferably, one side of the guide plate, which faces the scraper, is hinged wit