Thickness detection device for tpu film
By introducing a laser thickness detector and a width adjustment mechanism into the TPU film production process, the problem of uneven TPU film thickness is solved, instant detection and parameter adjustment are achieved, and the stability and uniformity of production are improved.
Patent Information
- Application Number
- CN202422757555.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-11-12
AI Technical Summary
During the production process of TPU film, the problem of uneven film thickness is difficult to detect and adjust in time due to reasons such as aging or wear of the extruder.
A TPU film thickness detection device was designed, which included a laser thickness detector, a traction assembly and a width adjustment mechanism. By adjusting the distance and height of the detection mechanism, the TPU film thickness can be detected in real time, and the production equipment parameters can be adjusted in time to ensure thickness uniformity.
It realizes the real-time detection and parameter adjustment of TPU film thickness, reduces the possibility of large-scale thickness unevenness, and improves the stability of production quality.
Smart Images
Figure CN223302190U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of TPU film production, and in particular to a device for detecting the thickness of a TPU film. Background Art
[0002] TPU film, the full name of which is thermoplastic polyurethane film, is a high-performance polymer material based on polyurethane. TPU film is made into a film based on TPU granules through calendering, casting, film blowing, coating and other processes.
[0003] When producing TPU film, the thermoplastic polyurethane particles are first inspected, screened and proportioned to ensure the quality and stability of the raw materials. Then, under the action of the catalyst, polyols and isocyanates undergo polymerization to form polyurethane prepolymers. The prepared TPU particles are placed in the melt preparation equipment, and appropriate amounts of additives and masterbatches are added. The TPU particles are melted into a melt under high temperature and high pressure. Finally, the prepolymer is heated to a molten state and then extruded into a film through an extruder head.
[0004] The melt is conveyed to the film extruder, and through the extrusion and stretching action of the extruder, the melt is extruded into a TPU film. During the extrusion process, it is necessary to control parameters such as extrusion temperature, extrusion speed and extrusion pressure to ensure the stability and consistency of the film quality. During long-term production, the extrusion temperature, extrusion speed and pressure parameters of the film extruder may change due to other difficult-to-detect factors such as machine aging and wear, which may cause uneven thickness of the produced TPU film. Utility Model Content
[0005] The purpose of this application is to solve the problem that the extrusion temperature, extrusion speed and pressure parameters of the film extruder proposed in the above background technology may change due to other difficult-to-detect factors such as machine aging and wear, which may cause the thickness of the produced TPU film to be uneven. This application provides a TPU film thickness detection device.
[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:
[0007] A TPU film thickness detection device includes TPU film production equipment, wherein the discharge port of the TPU film production equipment is provided with two symmetrical support plates, the two support plates are fixedly connected to the TPU film production equipment, and a plurality of guide rollers are rotatably connected between the two support plates. A winding and traction device is provided on one side of the TPU film production equipment, a thickness detection mechanism is provided between the winding and traction device and the TPU film production equipment, and a width adjustment mechanism is provided between the TPU film production equipment and the winding and traction device.
[0008] By adopting the above technical solution, the width adjustment mechanism is used to adjust the distance of the TPU film moved by the thickness detection mechanism, and then the thickness detection mechanism adjusts the height of the thickness detection mechanism itself. Then, during the movement of the TPU film, the thickness detection mechanism detects the thickness of the TPU film. When uneven thickness occurs, the parameters of the TPU film production equipment are adjusted in time, so that the TPU film can be detected in time, which facilitates the rapid adjustment of the parameters of the TPU film production equipment according to the detection data, reducing the possibility of uneven thickness of the produced TPU film on a large scale.
[0009] Furthermore, the thickness detection mechanism includes two laser thickness detectors symmetrically arranged on one side of the winding and traction equipment, and a support rod is fixed on both of the laser thickness detectors. A support leg is slidably connected to the support rod, and an adjustment and fixing component is provided between the support rod and the support leg. A traction component is provided on the laser thickness detector.
[0010] By adopting the above technical solution, the TPU film is allowed to pass through the traction assembly on the laser thickness detector, and the TPU film is allowed to pass through the laser thickness detector stably. The laser thickness detector detects the thickness of the moving TPU film, so that the TPU film can be detected in real time, which makes it convenient to quickly adjust the parameters of the TPU film production equipment according to the detection data, and reduce the possibility of uneven thickness of the produced TPU film on a large scale.
[0011] Furthermore, the traction assembly includes two traction rods symmetrically fixed on the laser thickness detector. The ends of the two traction rods away from the laser thickness detector are each provided with a traction opening, and the traction opening passes through the traction rod.
[0012] By adopting the above technical solution, the TPU film is allowed to pass through the traction ports on the traction rods on both sides of the laser thickness detector, and the two symmetrical traction rods support the TPU film, so that the TPU film can pass through the laser thickness detector horizontally and stably.
[0013] Furthermore, a traction roller is provided in the traction port, and both ends of the traction roller are rotatably connected to the traction rod.
[0014] By adopting the above technical solution, when the TPU film passes through the traction port on the traction rod, the traction roller in the traction port supports the TPU film, thereby reducing the friction between the TPU film and the traction rod.
[0015] Furthermore, a support frame is provided in the traction port, a traction threaded rod is rotatably connected to the support frame, a sliding rod is fixed to the support frame, and the sliding rod passes through the traction rod and is slidably connected to the traction rod.
[0016] By adopting the above technical solution, the traction threaded rod on the support frame is in contact with the TPU film. The TPU film drives the traction threaded rod during the movement, thereby pulling the edge of the TPU film and reducing the possibility of wrinkles on the TPU film affecting detection.
[0017] Furthermore, a resistance spring is sleeved on the sliding rod, and both ends of the resistance spring are fixedly connected to the sliding rod and the traction rod.
[0018] By adopting the above technical solution, under the push of the resistance spring, the sliding rod drives the traction threaded rod on the support frame to resist the TPU film, thereby making it convenient for the traction threaded rod to resist TPU films of different thicknesses.
[0019] Furthermore, the adjustment and fixing assembly includes a fixing hole opened on the support leg, the fixing hole passes through the support leg, and the support rod is provided with a plurality of adjustment holes evenly distributed in a straight line. An adjustment bolt is arranged in the fixing hole, and the adjustment bolt is threadedly connected to the adjustment hole.
[0020] By adopting the above technical solution, first let the support rod slide on the support leg, let the fixing bolt pass through the fixing hole, and then threadedly connected to the corresponding adjustment hole, so that the height of the laser thickness detector and traction rod on the support rod can be easily adjusted, and the laser thickness detector and traction rod can be easily aligned with the TPU film.
[0021] Furthermore, the width adjustment mechanism includes a fixed block arranged between the two support legs, the fixed block is fixed to the ground, and a bidirectional threaded rod is rotatably connected to the fixed block. The bidirectional threaded rod passes through two symmetrical support legs and is threadedly connected to the support legs. A movable support wheel is fixed on both support legs.
[0022] By adopting the above technical solution, the bidirectional threaded rod rotates on the fixed block, and the bidirectional threaded rod drives the two support legs at the same time. The two support legs move simultaneously under the support of the movable support wheel, thereby being able to easily adapt to the production of TPU films of different widths and making it convenient for the TPU film to pass through the traction port on the traction rod.
[0023] In summary, the present application includes at least one of the following beneficial effects:
[0024] 1. In the present application, after the produced TPU film is fixed on the winding and traction equipment, the TPU film is passed through the traction openings on the two traction rods on the laser thickness detector, the traction roller supports the TPU film, and then, under the push of the resistance spring, the sliding rod drives the support frame, the traction threaded rod is in contact with the TPU film, and the two traction rods allow the passing TPU film to pass through the laser thickness detector horizontally. When the TPU film is wound and moved by the winding and traction equipment, the TPU film passes through the laser thickness detector horizontally, and at the same time, the TPU film drives the traction threaded rod, and under the traction of the traction threaded rod, the TPU film is unfolded outward, and the laser thickness detector detects the thickness of the TPU film, thereby achieving the purpose of allowing the TPU film to pass through the laser thickness detector stably and timely, being able to perform real-time detection of the TPU film in a timely manner, and facilitating rapid adjustment of the parameters of the TPU film production equipment according to the detection data, thereby reducing the possibility of a large range of uneven thickness of the produced TPU film.
[0025] 2. In this application, when the width of the TPU film being produced changes, the bidirectional threaded rod is rotated. The bidirectional threaded rod rotates on the fixed block, and the bidirectional threaded rod drives the two support legs at the same time. The two support legs move simultaneously under the support of the movable support wheels, so that the support legs drive the laser thickness detector and the traction rod close to or away from the edge of the TPU film, thereby achieving the purpose of being able to easily adapt to the production of TPU films of different widths and at the same time making it convenient for the TPU film to pass through the traction port on the traction rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a first three-dimensional structural diagram of the TPU film thickness detection device in this application;
[0027] Figure 2 This is a partial structural diagram of the TPU film thickness detection device in this application;
[0028] Figure 3 This application Figure 2 A in the middle is an enlarged schematic diagram;
[0029] Figure 4 This application Figure 2 Enlarged schematic diagram of point B in the middle.
[0030] Description of reference numerals:
[0031] 1. TPU film production equipment; 2. Guide roller; 3. Support plate; 4. Winding and traction equipment; 5. Thickness detection mechanism; 51. Laser thickness detector; 52. Support leg; 53. Support rod; 54. Traction assembly; 541. Traction rod; 542. Traction port; 543. Traction roller; 544. Support frame; 545. Traction threaded rod; 546. Sliding rod; 547. Resistance spring; 55. Adjustment and fixing assembly; 551. Fixing hole; 552. Adjustment hole; 553. Adjustment bolt; 6. Width adjustment mechanism; 61. Fixed block; 62. Bidirectional threaded rod; 63. Movable support wheel. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1 —4 provides further details of this application.
[0033] The embodiment of the present application discloses a device for detecting the thickness of a TPU film.
[0034] Reference Figure 1 、 Figure 2 and Figure 3 The thickness detection device of the TPU film includes a TPU film production equipment 1. The discharge port of the TPU film production equipment 1 is provided with two symmetrical support plates 3. The two support plates 3 are fixedly connected to the TPU film production equipment 1. Several guide rollers 2 are rotatably connected between the two support plates 3. A winding and traction device 4 is provided on one side of the TPU film production equipment 1. A thickness detection mechanism 5 is provided between the winding and traction device 4 and the TPU film production equipment 1. A width adjustment mechanism 6 is provided between the TPU film production equipment 1 and the winding and traction device.
[0035] When producing TPU film, the TPU film is discharged from the discharge port of the TPU film production equipment 1, and then the TPU film passes through the guide roller 2 on the support plate 3, and then passes through the thickness detection mechanism 5, and then is connected to the winding and traction device 4, so that the winding and traction device 4 winds up the produced TPU film, and uses the width adjustment mechanism 6 to adjust the distance of the TPU film moved by the thickness detection mechanism 5, and then the thickness detection mechanism 5 adjusts the height of the thickness detection mechanism 5 itself, and then in the process of the movement of the TPU film, the thickness detection mechanism 5 detects the thickness of the TPU film. When the thickness is uneven, the parameters of the TPU film production equipment 1 are adjusted in time. By placing the thickness detection mechanism 5 on both sides of the Tpu film when the TPU film is wound and pulled, the thickness detection mechanism 5 is allowed to detect the thickness of the moving TPU film, so that the TPU film can be detected in time, which facilitates the rapid adjustment of the parameters of the TPU film production equipment 1 according to the detection data, and reduces the possibility of large-scale uneven thickness of the produced TPU film.
[0036] Reference Figure 2 、 Figure 3 and Figure 4 The thickness detection mechanism 5 includes two laser thickness detectors 51 symmetrically arranged on one side of the winding and traction device 4. A support rod 53 is fixed on the two laser thickness detectors 51, and a support leg 52 is slidably connected to the support rod 53. An adjustment and fixing component 55 is provided between the support rod 53 and the support leg 52, and a traction component 54 is provided on the laser thickness detector 51.
[0037] In addition, the traction assembly 54 includes two traction rods 541 symmetrically fixed on the laser thickness detector 51 . A traction opening 542 is formed at one end of the two traction rods 541 away from the laser thickness detector 51 . The traction opening 542 passes through the traction rods 541 .
[0038] In addition, a traction roller 543 is provided in the traction port 542 , and both ends of the traction roller 543 are rotatably connected to the traction rod 541 .
[0039] In addition, a support frame 544 is provided in the traction port 542 , and a traction threaded rod 545 is rotatably connected to the support frame 544 . A sliding rod 546 is fixed on the support frame 544 . The sliding rod 546 passes through the traction rod 541 and is slidably connected to the traction rod 541 .
[0040] Furthermore, a resistance spring 547 is sleeved on the sliding rod 546 , and both ends of the resistance spring 547 are fixedly connected to the sliding rod 546 and the traction rod 541 .
[0041] After the produced TPU film is fixed on the winding and traction device 4, the TPU film is allowed to pass through the traction port 542 on the two traction rods 541 on the laser thickness detector 51, and the traction roller 543 supports the TPU film. Then, under the push of the resistance spring 547, the sliding rod 546 drives the support frame 544, and the traction threaded rod 545 resists the TPU film, so that the two traction rods 541 can pass through the laser thickness detector 51 horizontally. When the TPU film is wound and moved by the winding and traction device 4, the TPU film passes through the laser thickness detector 51 horizontally, and the TPU film drives The traction threaded rod 545 is used to pull the traction threaded rod 545 to expand the TPU film outward, and the laser thickness detector 51 detects the thickness of the TPU film. The traction rods 541 on both sides of the laser thickness detector 51 are used to pull and support the TPU film, so that the TPU film passes through the detection range of the laser thickness detector 51 for detection, so that the TPU film can pass through the laser thickness detector 51 stably and timely, and the TPU film can be detected in real time, which makes it convenient to quickly adjust the parameters of the TPU film production equipment 1 according to the detection data, thereby reducing the possibility of uneven thickness of the produced TPU film on a large scale.
[0042] Reference Figure 2 and Figure 4The adjustment and fixing assembly 55 includes a fixing hole 551 formed on the support leg 52. The fixing hole 551 passes through the support leg 52. The support rod 53 is provided with a plurality of adjustment holes 552 evenly distributed in a straight line. An adjustment bolt 553 is provided in the fixing hole 551. The adjustment bolt 553 is threadedly connected to the adjustment hole 552. First, the support rod 53 is slid on the support leg 52, and the support rod 53 drives the laser thickness detector 51 and the traction rod 541 to align with the edge of the TPU film. Then, the fixing bolt is passed through the fixing hole 551 and then threadedly connected with the corresponding adjustment hole 552 to fix the support leg 52 and the support rod 53. By sliding the support rod 53 on the support leg 52, and then using the fixing bolt to pass through the fixing hole 551 and insert into the corresponding adjustment hole 552 on the support rod 53, the height of the laser thickness detector 51 and the traction rod 541 on the support rod 53 can be easily adjusted, so that the laser thickness detector 51 and the traction rod 541 can be easily aligned with the TPU film.
[0043] Reference Figure 1 and Figure 2 The width adjustment mechanism 6 includes a fixed block 61 disposed between the two support legs 52. The fixed block 61 is fixed to the ground. A bidirectional threaded rod 62 is rotatably connected to the fixed block 61. The bidirectional threaded rod 62 passes through the two symmetrical support legs 52 and is threadedly connected to the support legs 52. A movable support wheel 63 is fixed to each of the two support legs 52. When the width of the TPU film being produced changes, the bidirectional threaded rod 62 is rotated. The bidirectional threaded rod 62 rotates on the fixed block 61 and simultaneously drives the two support legs 52. The two support legs 52 move simultaneously under the support of the movable support wheel 63, allowing the support legs 52 to drive the laser thickness detector 51 and the traction rod 541 to move closer to or away from the edge of the TPU film. By driving the two support legs 52 closer to or farther away from each other under the drive of the bidirectional threaded rod 62, it can easily adapt to the production of TPU films of different widths and facilitate the TPU film to pass through the traction port 542 on the traction rod 541.
[0044] Working principle: When producing TPU film, the TPU film is discharged from the discharge port of the TPU film production equipment 1, and then the TPU film passes through the guide roller 2 on the support plate 3, and then passes through the thickness detection mechanism 5, and then is connected to the winding and traction device 4. First, let the support rod 53 slide on the support leg 52, let the support rod 53 drive the laser thickness detector 51 and the traction rod 541 to align with the edge of the TPU film, and then let the fixing bolt pass through the fixing hole 551, and then threadedly connected with the corresponding adjustment hole 552, so that the support leg 52 and the support rod 53 are fixed, and the bidirectional threaded rod 62 is rotated. The bidirectional threaded rod 62 rotates on the fixed block 61, and the bidirectional threaded rod 62 drives the two support legs 52 at the same time. The two support legs 52 move at the same time under the support of the moving support wheel 63, so that the laser thickness detector The instrument 51 and the traction rod 541 are close to the edge of the TPU film, allowing the TPU film to pass through the traction port 542 on the traction rod 541, and the traction roller 543 supports the TPU film. Then, under the push of the resistance spring 547, the sliding rod 546 drives the support frame 544, allowing the traction threaded rod 545 to resist the TPU film, so that the two traction rods 541 can allow the TPU film passing through to pass through the laser thickness detector 51 horizontally. When the TPU film is wound and moved by the winding traction device 4, the TPU film passes through the laser thickness detector 51 horizontally, and at the same time, the TPU film drives the traction threaded rod 545. Under the traction of the traction threaded rod 545, the TPU film is unfolded outward, and the laser thickness detector 51 performs thickness detection on the TPU film. When the thickness is uneven, the parameters of the TPU film production equipment 1 are adjusted in time.
Claims
1. A device for detecting the thickness of a tpu film, comprising a tpu film production device (1), characterized in that: The discharge port of the TPU film production equipment (1) is provided with two symmetrical support plates (3), the two support plates (3) are fixedly connected to the TPU film production equipment (1), a plurality of guide rollers (2) are rotatably connected between the two support plates (3), a winding and traction device (4) is provided on one side of the TPU film production equipment (1), a thickness detection mechanism (5) is provided between the winding and traction device (4) and the TPU film production equipment (1), and a width adjustment mechanism (6) is provided between the TPU film production equipment (1) and the winding and traction device.
2. The device for detecting the thickness of a TPU film according to claim 1, characterized in that: The thickness detection mechanism (5) comprises two laser thickness detectors (51) symmetrically arranged on one side of the winding and traction device (4), a support rod (53) being fixed to each of the two laser thickness detectors (51), a support leg (52) being slidably connected to the support rod (53), an adjustment and fixing assembly (55) being arranged between the support rod (53) and the support leg (52), and a traction assembly (54) being arranged on the laser thickness detector (51).
3. The device for detecting the thickness of a TPU film according to claim 2, characterized in that: The traction assembly (54) comprises two traction rods (541) symmetrically fixed on the laser thickness detector (51), and the ends of the two traction rods (541) away from the laser thickness detector (51) are each provided with a traction opening (542), and the traction opening (542) passes through the traction rods (541).
4. The device for detecting the thickness of a TPU film according to claim 3, characterized in that: A traction roller (543) is provided in the traction port (542), and both ends of the traction roller (543) are rotatably connected to the traction rod (541).
5. The device for detecting the thickness of a TPU film according to claim 4, characterized in that: A support frame (544) is provided in the traction port (542), a traction threaded rod (545) is rotatably connected to the support frame (544), a sliding rod (546) is fixed to the support frame (544), and the sliding rod (546) passes through the traction rod (541) and is slidably connected to the traction rod (541).
6. The device for detecting the thickness of a TPU film according to claim 5, characterized in that: A resisting spring (547) is sleeved on the sliding rod (546), and both ends of the resisting spring (547) are fixedly connected to the sliding rod (546) and the traction rod (541).
7. The device for detecting the thickness of a TPU film according to claim 2, characterized in that: The adjusting and fixing assembly (55) comprises a fixing hole (551) provided on the supporting leg (52), the fixing hole (551) passing through the supporting leg (52), a plurality of adjusting holes (552) evenly distributed in a straight line are provided on the supporting rod (53), an adjusting bolt (553) is provided in the fixing hole (551), and the adjusting bolt (553) is threadedly connected to the adjusting hole (552).
8. The device for detecting the thickness of a TPU film according to claim 2, characterized in that: The width adjustment mechanism (6) comprises a fixed block (61) arranged between two supporting legs (52), the fixed block (61) being fixed to the ground, a bidirectional threaded rod (62) being rotatably connected to the fixed block (61), the bidirectional threaded rod (62) passing through two symmetrical supporting legs (52) and being threadedly connected to the supporting legs (52), and a movable support wheel (63) being fixed to both supporting legs (52).