Wear-resistant antistatic polyester film
By setting an antistatic and wear-resistant layer on the polyester film and combining it with the design of the storage box, the problems of scratches and wear on the film surface are solved, achieving a wear-resistant and antistatic effect and extending the service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU BAIDONG PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-21
AI Technical Summary
Existing polyester films lack adequate surface protection measures before use, which can easily lead to scratches or wear on the surface coating, affecting service life and protective effect.
An antistatic layer and abrasion-resistant layer are applied to the polyester film, and a storage box design, including a scraper, ratchet and pawl mechanism, and a cutting blade, is used to store, clean, and cut the film, preventing it from becoming loose or being violently torn.
It enhances the antistatic and abrasion resistance of the film, prevents surface scratches, extends service life, and ensures protection during storage and use.
Smart Images
Figure CN224146692U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyester film technology, specifically to a wear-resistant and antistatic polyester film. Background Technology
[0002] Polyester film (PET film) has a variety of uses and is widely used in packaging, electronics, construction, automotive and other fields. It is favored for its excellent physical and chemical properties. In the packaging field, polyester film is widely used, mainly for packaging food, pharmaceuticals, cosmetics and other products. In the electronics field, polyester film is used as an insulating material for electronic components such as capacitors and resistors to ensure the normal operation of electronic equipment.
[0003] To ensure that polyester film provides good protection for the items it covers, it needs to have properties such as wear resistance and antistatic properties. However, existing polyester films do not have good protective measures for their surface before use, which can easily lead to scratches or wear on the surface coating of the polyester film, shortening the service life of the polyester film and reducing its protective effect during subsequent use. Utility Model Content
[0004] The purpose of this invention is to provide a wear-resistant and antistatic polyester film to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant and antistatic polyester film, comprising a storage box, a winding drum, and a polyester film. The polyester film has an antistatic layer and a wear-resistant layer. The polyester film is wound around the winding drum. A positioning frame is fixedly installed inside the storage box, and a movable frame is slidably installed inside the storage box. A rubber sheet connects the movable frame to the storage box. A locking rod is rotatably installed on both the positioning frame and the movable frame. The locking rod on the right side is rotatably connected to the positioning frame via a rotating rod. The rotating rod passes through the storage box and is rotatably connected to it. A scraper is provided inside the storage box, and a stop plate is fixedly installed inside the storage box. The stop plate and scraper are correspondingly arranged. The polyester film is located between the scraper and the stop plate and is respectively attached to both the scraper and the stop plate. A bottom rod is fixedly installed inside the storage box. The movable frame is slidably sleeved with the bottom rod. A first spring is sleeved on the bottom rod, and both ends of the first spring are fixedly connected to the movable frame and the bottom rod, respectively.
[0006] As a further preferred embodiment of this technical solution, the scraper is rotatably connected to the storage box via a mounting rod, and a third torsion spring is sleeved on the mounting rod. The two ends of the third torsion spring are respectively fixedly connected to the scraper and the storage box.
[0007] As a further preferred embodiment of this technical solution, a flip cover is rotatably mounted on the storage box, an insert rod is slidably mounted inside the storage box, a stop block is fixedly mounted inside the storage box, the insert rod passes through the stop block and is slidably connected to the stop block, a third spring is sleeved on the insert rod, the insert rod is slidably engaged with the flip cover, and the two ends of the third spring are fixedly connected to the insert rod and the stop block respectively.
[0008] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed ratchet wheels are sleeved on the rotating rod, and two sets of symmetrically distributed pawls are provided inside the storage box. The two sets of pawls are respectively engaged with the corresponding ratchet wheels. Both sets of pawls are rotatably connected to the storage box through a mounting shaft. A first torsion spring is sleeved on the mounting shaft, and gears are sleeved on both sets of mounting shafts.
[0009] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed racks are slidably installed inside the storage box. The racks are respectively meshed with corresponding gears, and the two sets of racks are fixedly connected by a connecting frame, on which a locking block is fixedly installed.
[0010] As a further preferred embodiment of this technical solution, a fixing rod is fixedly installed inside the storage box, and two sets of symmetrically distributed card holders are sleeved on the fixing rod. Both sets of card holders are correspondingly set with card blocks, and the two sets of card holders are movably engaged with the card blocks. A second torsion spring is sleeved on the fixing rod, and the two ends of the second torsion spring are fixedly connected to the card holders and the fixing rod, respectively.
[0011] As a further preferred embodiment of this technical solution, a locking rod is fixedly installed inside the storage box, a slide is slidably installed inside the storage box, the slide is slidably connected to the locking rod, a cutting blade is rotatably installed on the slide, and a second spring is sleeved on the locking rod, with the two ends of the second spring being fixedly connected to the slide and the storage box, respectively.
[0012] This invention provides a wear-resistant and antistatic polyester film with the following beneficial effects:
[0013] (1) This utility model forms a conductive layer by setting an antistatic layer of epoxy acrylic resin, thereby enhancing the antistatic performance of the film. It enhances the wear resistance by adding a wear-resistant layer on the surface of the polyester film, and uses a storage box with a flip-top to store the polyester film. During the storage process, the scraper and the abutment are used to clean the impurities attached to the polyester film, reducing the presence of dust or particulate impurities during storage, which may cause the wear-resistant layer or antistatic layer on the surface of the polyester film to be scratched or damaged, thereby reducing the effectiveness of the polyester film.
[0014] (2) The present invention limits the position of the rotating rod and the locking rod on the positioning frame by setting the ratchet and pawl, so as to ensure that the winding rod and polyester film in the storage box will not be loose during storage and placement, which will cause the polyester film to rub against each other and thus cause damage. The cutting knife set on the storage box, together with the slide, enables convenient cutting of the polyester film. When using the polyester film, it will not affect its good antistatic effect due to violent tearing. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the winding drum of this utility model;
[0017] Figure 3 This is a schematic diagram of the scraper structure of this utility model;
[0018] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A;
[0019] Figure 5 For the present utility model Figure 3 Enlarged view of the structure at point -B;
[0020] In the diagram: 1. Rewind drum; 2. Polyester film; 3. Antistatic layer; 4. Wear-resistant layer; 5. Storage box; 6. Positioning frame; 7. Rotating rod; 8. Moving frame; 9. Rubber sheet; 10. Base rod; 11. First spring; 12. Clamping rod; 13. Ratchet; 14. Pawl; 15. Mounting shaft; 16. First torsion spring; 17. Gear; 18. Rack; 19. Connecting frame; 20. Clamping block; 21. Fixing rod; 22. Clamping bracket; 23. Second torsion spring; 24. Scraper; 25. Mounting rod; 26. Third torsion spring; 27. Slide; 28. Clamping rod; 29. Second spring; 30. Cutting blade; 31. Support plate; 32. Flip cover; 33. Insert rod; 34. Stop block; 35. Third spring. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0022] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3As shown in this embodiment, a wear-resistant and antistatic polyester film includes a storage box 5, a winding drum 1, and a polyester film 2. An antistatic layer 3 is provided on the polyester film 2, and a wear-resistant layer 4 is provided on the antistatic layer 3. The polyester film 2 is wound with the winding drum 1. A positioning frame 6 is fixedly installed inside the storage box 5, and a movable frame 8 is slidably installed inside the storage box 5. A rubber sheet 9 connects the movable frame 8 to the storage box 5. A locking rod 12 is rotatably installed on both the positioning frame 6 and the movable frame 8. The right-side locking rod 12 is rotatably connected to the positioning frame 6 via a rotating rod 7, which passes through the storage box 5. Box 5 is rotatably connected to storage box 5. Storage box 5 is equipped with a scraper 24 and a stop plate 31 is fixedly installed inside. The stop plate 31 is correspondingly positioned to the scraper 24. Polyester film 2 is located between the scraper 24 and the stop plate 31 and is respectively attached to the scraper 24 and the stop plate 31. A bottom rod 10 is fixedly installed inside storage box 5. The movable frame 8 is slidably sleeved with the bottom rod 10. A first spring 11 is sleeved on the bottom rod 10. The two ends of the first spring 11 are respectively fixedly connected to the movable frame 8 and the bottom rod 10. Through the provided antistatic layer 3 epoxy acrylic resin, a layer is formed... A conductive layer is added to enhance the antistatic properties of the film. A wear-resistant layer 4 is added to the surface of the polyester film 2 to enhance its wear resistance. The polyester film 2 is stored in a storage box 5 with a flip cover 32. A scraper 24 is rotatably connected to the storage box 5 via a mounting rod 25. A third torsion spring 26 is sleeved on the mounting rod 25, with both ends of the third torsion spring 26 fixedly connected to the scraper 24 and the storage box 5, respectively. A flip cover 32 is rotatably mounted on the storage box 5. An insert rod 33 is slidably mounted inside the storage box 5. A fixedly mounted... There is a stop block 34, and the insertion rod 33 passes through the stop block 34 and is slidably connected to the stop block 34. A third spring 35 is sleeved on the insertion rod 33. The insertion rod 33 is slidably engaged with the flip cover 32. The two ends of the third spring 35 are fixedly connected to the insertion rod 33 and the stop block 34 respectively. When the winding rod rotates to complete the storage of the polyester film 2, the scraper 24 gently scrapes and cleans the impurities adhering to the surface of the polyester film 2 that enters the storage box 5 and is in contact with the scraper 24, reducing the adhesion of particulate impurities to the polyester film 2, which may scratch the wear-resistant layer 4 or the antistatic layer 3 during storage.
[0023] like Figure 4 and Figure 5As shown, two sets of symmetrically distributed ratchet wheels 13 are sleeved on the rotating rod 7. Two sets of symmetrically distributed pawls 14 are provided inside the storage box 5. The two sets of pawls 14 are respectively engaged with the corresponding ratchet wheels 13. Both sets of pawls 14 are rotatably connected to the storage box 5 via mounting shafts 15. A first torsion spring 16 is sleeved on the mounting shafts 15. Gears 17 are sleeved on both sets of mounting shafts 15. Two sets of symmetrically distributed racks 18 are slidably installed inside the storage box 5. The racks 18 are respectively engaged with the corresponding gears 17. The two sets of racks 18 are connected by a connecting bracket 19. A fixed connection is established, with a locking block 20 fixedly installed on the connecting frame 19. A fixed rod 21 is fixedly installed inside the storage box 5. Two sets of symmetrically distributed locking brackets 22 are sleeved on the fixed rod 21, each corresponding to the locking block 20. The two sets of locking brackets 22 are movably engaged with the locking block 20. A second torsion spring 23 is sleeved on the fixed rod 21, with both ends of the second torsion spring 23 fixedly connected to the locking bracket 22 and the fixed rod 21, respectively. When the locking block 20 on the movable frame 8 engages with the locking bracket 22, the two sets of racks 18 move to the left, cooperating with the gear 17 to facilitate the installation. Shaft 15 drives pawl 14 to deflect away from the corresponding ratchet 13. At this time, rotating rod 7 can drive locking rod 12 to rotate, and drive take-up rod to rotate to complete the winding of polyester film 2. After the polyester film 2 is wound up, the locking bracket 22 releases the fixing of locking block 20. Under the action of the first torsion spring 16, pawl 14 returns to its original position and engages with the corresponding ratchet 13. Under the limiting action of the two sets of pawls 14 and ratchet 13, rotating rod 7 cannot rotate freely, locking rod 12 and take-up rod cannot rotate freely, to prevent the polyester film 2 from loosening. A locking rod 28 is fixedly installed inside the storage box 5, and a slide 27 is slidably installed inside the storage box 5. The slide 27 is slidably connected to the locking rod 28. A cutting blade 30 is rotatably installed on the slide 27, and a second spring 29 is sleeved on the locking rod 28. The two ends of the second spring 29 are fixedly connected to the slide 27 and the storage box 5, respectively. After the polyester film 2 is pulled out, the cutting blade 30 is driven to slide in the storage box 5 by the pull of the slide 27 to cut the polyester film 2 that is attached to it, so as to avoid violently tearing and splitting the polyester film 2 and affecting its use effect.
[0024] This utility model provides a wear-resistant and antistatic polyester film. The specific working principle is as follows: An antistatic layer 3, made of epoxy acrylic resin, forms a conductive layer, thereby enhancing the antistatic properties of the film. A wear-resistant layer 4 is added to the surface of the polyester film 2 to enhance its wear resistance. A storage box 5, along with a flip-top 32, is used to store the polyester film 2. During the storage process, the rotating rod rotates to remove impurities adhering to the surface of the polyester film 2 that have entered the storage box 5 and are in contact with the scraper 24. This reduces the amount of particulate impurities adhering to the polyester film 2, which could scratch the wear-resistant layer 4 or the antistatic layer 3 during storage. When the locking block 20 on the moving frame 8 engages with the locking bracket 22, the two sets of racks 18 move to the left, engaging with the gear 17. The mounting shaft 15 causes the pawl 14 to deflect away from the corresponding ratchet 13. At this time, the rotating rod 7 can drive the locking rod 12 to rotate, and drive the winding rod to rotate to complete the winding of the polyester film 2. After the polyester film 2 is wound up, the locking bracket 22 is released from fixing the locking block 20. Under the action of the first torsion spring 16, the pawl 14 returns to its original position and engages with the corresponding ratchet 13. Under the limiting action of the two sets of pawls 14 and ratchet 13, the rotating rod 7 cannot rotate freely, and neither can the locking rod 12 nor the winding rod, to prevent the polyester film 2 from loosening. After the polyester film 2 is pulled out, the cutting blade 30 is driven to slide in the storage box 5 by the pull of the slide 27 to cut the polyester film 2 that is attached to it, so as to avoid violent tearing and splitting of the polyester film 2 and affecting its use effect.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wear-resistant and antistatic polyester film, comprising a storage box (5), a winding drum (1), and a polyester film (2), characterized in that: An antistatic layer (3) is provided on the polyester film (2), and a wear-resistant layer (4) is provided on the antistatic layer (3). The polyester film (2) is wound with a winding drum (1). A positioning frame (6) is fixedly installed inside the storage box (5). A movable frame (8) is slidably installed inside the storage box (5). A rubber sheet (9) is connected between the movable frame (8) and the storage box (5). A locking rod (12) is rotatably installed on both the positioning frame (6) and the movable frame (8). The locking rod (12) on the right side is rotatably connected to the positioning frame (6) through a rotating rod (7). The rotating rod (7) passes through the storage box (5) and is connected to the storage box (5). The storage box (5) is rotatably connected to a scraper (24) and a backing plate (31) is fixedly installed inside the storage box (5). The backing plate (31) is correspondingly arranged with the scraper (24). The polyester film (2) is located between the scraper (24) and the backing plate (31) and is respectively attached to the scraper (24) and the backing plate (31). The storage box (5) is fixedly installed with a bottom rod (10). The moving frame (8) is slidably connected to the bottom rod (10). A first spring (11) is sleeved on the bottom rod (10). The two ends of the first spring (11) are respectively fixedly connected to the moving frame (8) and the bottom rod (10).
2. The abrasion resistant, antistatic polyester film according to claim 1, characterized in that: The scraper (24) is rotatably connected to the storage box (5) via the mounting rod (25). A third torsion spring (26) is sleeved on the mounting rod (25), and the two ends of the third torsion spring (26) are fixedly connected to the scraper (24) and the storage box (5) respectively.
3. The abrasion resistant, antistatic polyester film according to claim 1, characterized in that: A flip cover (32) is rotatably mounted on the storage box (5). A plug rod (33) is slidably mounted inside the storage box (5). A stop block (34) is fixedly mounted inside the storage box (5). The plug rod (33) passes through the stop block (34) and is slidably connected to the stop block (34). A third spring (35) is sleeved on the plug rod (33). The plug rod (33) is slidably engaged with the flip cover (32). The two ends of the third spring (35) are fixedly connected to the plug rod (33) and the stop block (34) respectively.
4. The abrasion resistant, antistatic polyester film according to claim 1, characterized in that: Two sets of symmetrically distributed ratchet wheels (13) are sleeved on the rotating rod (7). Two sets of symmetrically distributed pawls (14) are provided inside the storage box (5). The two sets of pawls (14) are respectively engaged with the corresponding ratchet wheels (13). The two sets of pawls (14) are rotatably connected to the storage box (5) through the mounting shaft (15). A first torsion spring (16) is sleeved on the mounting shaft (15). Gears (17) are sleeved on both sets of mounting shafts (15).
5. The abrasion resistant, antistatic polyester film according to claim 1, characterized in that: The storage box (5) has two sets of symmetrically distributed racks (18) slidably installed inside. The racks (18) are respectively meshed with the corresponding gears (17). The two sets of racks (18) are fixedly connected by a connecting frame (19). A locking block (20) is fixedly installed on the connecting frame (19).
6. The abrasion resistant, antistatic polyester film according to claim 1, characterized in that: A fixing rod (21) is fixedly installed inside the storage box (5). Two sets of symmetrically distributed card holders (22) are sleeved on the fixing rod (21). Both sets of card holders (22) are set corresponding to the card block (20). The two sets of card holders (22) are movably engaged with the card block (20). A second torsion spring (23) is sleeved on the fixing rod (21). The two ends of the second torsion spring (23) are fixedly connected to the card holder (22) and the fixing rod (21) respectively.
7. The abrasion resistant, antistatic polyester film according to claim 1, characterized in that: A locking rod (28) is fixedly installed inside the storage box (5). A slide (27) is slidably installed inside the storage box (5). The slide (27) is slidably connected to the locking rod (28). A cutting blade (30) is rotatably installed on the slide (27). A second spring (29) is sleeved on the locking rod (28). The two ends of the second spring (29) are fixedly connected to the slide (27) and the storage box (5) respectively.