Polyester film with antistatic performance

Abstract

The utility model relates to a polyester film with antistatic performance, which belongs to the field of polyester films and comprises a cylinder core and a polyester film, the polyester film is wound outside the cylinder core, and a compression component is arranged outside the cylinder core. The pressing assembly comprises an L-shaped plate, movable rods are slidably connected to the left side and the right side in the L-shaped plate correspondingly, the movable rods are sleeved with first telescopic springs, a pressing roller is rotationally connected between the two movable rods, a connecting rod is jointly fixed to the tops of the two movable rods, and a sliding groove is formed in the bottom of the left side of the L-shaped plate. A sliding rod is fixedly connected into the sliding groove. According to the polyester film with the antistatic performance, by arranging the pressing assembly, a film roll which is not used up is clamped between the two limiting covers, the cylinder core can be limited, and the pressing roller can be pressed on the surface of the film through the elastic effect of the first telescopic spring, so that the film roll which is not used up is prevented from loosening, and the film roll can be continuously used next time conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of polyester films, in particular to a polyester film with antistatic performance. Background Art

[0002] Polyester film is a film material made of polyester resin with excellent physical and chemical properties. Polyester film has the characteristics of high strength, wear resistance, high temperature resistance, chemical corrosion resistance, etc. It is widely used in packaging, printing, electronics, construction and other fields. In the packaging industry, polyester film is often used in food packaging, pharmaceutical packaging, cosmetics packaging and other fields. Because polyester film has excellent transparency and glossiness, it can effectively show the appearance and texture of the packaged items, so it is widely used in the packaging of high-end products.

[0003] The current polyester film usually needs to be rolled into a roll before use to form a roll-shaped polyester film product. The roll-shaped polyester film is usually rolled on a roll core, which can not only support the rolled film and maintain the shape of the roll, but also facilitate storage, transportation and use. When in use, the polyester film is usually released as a whole roll. When a roll is not used up, the remaining film roll may become loose. Therefore, a polyester film with antistatic properties is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a polyester film with antistatic properties, which has the advantage of preventing unused film rolls from loosening, and solves the problem that when a whole roll of polyester film is usually released during use, the remaining film roll may become loose when one roll is not used up.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a polyester film with antistatic properties, including a tube core and a polyester film, the polyester film is wound on the outside of the tube core, and a pressing component is installed on the outside of the tube core.

[0006] The clamping assembly includes an L-shaped plate, the left and right sides of the L-shaped plate are slidably connected with movable rods, the outer side of the movable rod is sleeved with a first telescopic spring, a clamping roller is rotatably connected between the two movable rods, a connecting rod is commonly fixed to the tops of the two movable rods, a sliding groove is provided at the bottom of the left side of the L-shaped plate, a sliding rod is fixedly connected to the inside of the sliding groove, a sliding block is slidably connected to the outside of the sliding rod, a second telescopic spring is sleeved on the outer side of the sliding rod, a moving rod is fixedly connected to the bottom of the sliding block, the bottom of the moving rod and the side of the L-shaped plate away from the moving rod are fixedly connected to a limiting cover, and the cylinder core is clamped between the two limiting covers.

[0007] Furthermore, a clamping groove is provided on one side opposite to the two limit covers, and a resistance-increasing ring is fixedly connected to the inner wall of the clamping groove.

[0008] Furthermore, the tube core is adapted to the card slots, and two ends of the tube core are respectively inserted into the inside of the two card slots.

[0009] Furthermore, the second telescopic spring is in conflict with the left side of the slider, and the slider is slidably connected inside the slide groove.

[0010] Furthermore, the polyester film comprises an antistatic coating and a polyester resin layer, and the antistatic coating is arranged on the surface of the polyester resin layer.

[0011] Furthermore, the first telescopic spring is fixedly connected between the connecting rod and the L-shaped plate, and the pressing roller is located below the L-shaped plate.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The polyester film with antistatic performance can limit the core of the tube by setting a clamping component to clamp the unused film roll between two limit covers. The clamping roller can be pressed against the surface of the film through the elastic action of the first telescopic spring, thereby preventing the unused film roll from loosening and facilitating its continued use next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0015] Figure 2 The utility model structure Figure 1 A magnified view of the structure at center A;

[0016] Figure 3 It is a cross-sectional view of the polyester film structure of the utility model;

[0017] Figure 4 It is a three-dimensional diagram of the structural limiting cover of the utility model.

[0018] In the figure: 1. core; 2. polyester film; 21. antistatic coating; 22. polyester resin layer; 3. limit cover; 4. L-shaped plate; 5. first telescopic spring; 6. connecting rod; 7. clamping roller; 8. movable rod; 9. slider; 10. second telescopic spring; 11. slide groove; 12. card slot; 13. moving rod; 14. resistance increasing ring; 15. slide rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 In this embodiment, a polyester film with antistatic properties includes a tube core 1 and a polyester film 2. The polyester film 2 is wound around the outside of the tube core 1, and a pressing component is installed outside the tube core 1.

[0021] The clamping assembly includes an L-shaped plate 4, and the left and right sides inside the L-shaped plate 4 are slidably connected with movable rods 8, the outside of the movable rod 8 is sleeved with a first telescopic spring 5, a clamping roller 7 is rotatably connected between the two movable rods 8, and a connecting rod 6 is fixed to the top of the two movable rods 8. A sliding groove 11 is provided at the bottom of the left side of the L-shaped plate 4, and a sliding rod 15 is fixedly connected inside the sliding groove 11, and a sliding block 9 is slidably connected to the outside of the sliding rod 15, and a second telescopic spring 10 is sleeved on the outside of the sliding rod 15, and a moving rod 13 is fixedly connected to the bottom of the sliding block 9, and a limiting cover 3 is fixedly connected to the bottom of the moving rod 13 and the side of the L-shaped plate 4 away from the moving rod 13, the cylinder core 1 is clamped between the two limiting covers 3, the cylinder core 1 is clamped between the two limiting covers 3, the first telescopic spring 5 is fixedly connected between the connecting rod 6 and the L-shaped plate 4, and the clamping roller 7 is located below the L-shaped plate 4.

[0022] It should be noted that by clamping the unused film roll between the two limit covers 3, the core 1 can be limited, and the clamping roller 7 will be pressed against the surface of the film through the elastic action of the first telescopic spring 5, thereby preventing the unused film roll from loosening and facilitating its continued use next time.

[0023] At the same time, through the elastic effect of the first telescopic spring 5 itself, the pressing roller 7 can be made to contact films with different diameters, and the applicability is good.

[0024] See also Figure 3 A slot 12 is provided on the opposite side of the two limit covers 3 , and a resistance increasing ring 14 is fixedly connected to the inner wall of the slot 12 . The cylinder core 1 is adapted to the slot 12 , and the two ends of the cylinder core 1 are respectively inserted into the inside of the two slots 12 .

[0025] It can be understood that the resistance increasing ring 14 is made of rubber material and is inserted into the two limiting covers 3 through the tube core 1, so that the tube core 1 can be easily removed from the limiting covers 3.

[0026] In this embodiment, the second telescopic spring 10 conflicts with the left side of the slider 9, the slider 9 is slidably connected inside the slide groove 11, the polyester film 2 includes an antistatic coating 21 and a polyester resin layer 22, and the antistatic coating 21 is arranged on the surface of the polyester resin layer 22.

[0027] Among them, by providing the antistatic coating 21, the antistatic performance of the polyester film can be improved, and the antistatic coating 21 can effectively reduce or eliminate the static electricity accumulation on the surface of the material, reducing the adverse effects of static electricity on the product.

[0028] The working principle of the above embodiment is as follows: when in use, pulling the moving rod 13 to move to the side away from the L-shaped plate 4 will cause the slider 9 to slide on the slide rod 15 and squeeze the second telescopic spring 10 to make it telescopic, and then the tube core 1 is inserted into the inside of the right-side limiting cover 3. After loosening, the limiting cover 3 on the left side limits the tube core 1 through the rebound force of the second telescopic spring 10, and the clamping roller 7 is pressed on the surface of the film through the elastic action of the first telescopic spring 5, thereby preventing the unused film roll from loosening and facilitating continued use next time.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyester film with antistatic properties, comprising a core (1) and a polyester film (2), characterized in that: The polyester film (2) is wound around the outside of the cylinder core (1), and a pressing component is installed on the outside of the cylinder core (1); The clamping assembly comprises an L-shaped plate (4), wherein both left and right sides of the L-shaped plate (4) are slidably connected with movable rods (8), the outer part of the movable rods (8) is sleeved with a first telescopic spring (5), a clamping roller (7) is rotatably connected between the two movable rods (8), a connecting rod (6) is commonly fixed to the tops of the two movable rods (8), a sliding groove (11) is provided at the bottom of the left side of the L-shaped plate (4), a sliding rod (15) is fixedly connected to the inner part of the sliding groove (11), a slider (9) is slidably connected to the outer part of the sliding rod (15), a second telescopic spring (10) is sleeved on the outer part of the sliding rod (15), a moving rod (13) is fixedly connected to the bottom of the slider (9), a limiting cover (3) is fixedly connected to the bottom of the moving rod (13) and a side of the L-shaped plate (4) away from the moving rod (13), and the cylinder core (1) is clamped between the two limiting covers (3).

2. The polyester film with antistatic properties according to claim 1, characterized in that: A clamping groove (12) is provided on one side opposite to the two limit covers (3), and a resistance-increasing ring (14) is fixedly connected to the inner wall of the clamping groove (12).

3. The polyester film with antistatic properties according to claim 2, characterized in that: The barrel core (1) is matched with the card slot (12), and the two ends of the barrel core (1) are respectively inserted into the inside of the two card slots (12).

4. The polyester film with antistatic properties according to claim 1, characterized in that: The second telescopic spring (10) contacts the left side of the slider (9), and the slider (9) is slidably connected inside the slide groove (11).

5. The polyester film with antistatic properties according to claim 1, characterized in that: The polyester film (2) comprises an antistatic coating (21) and a polyester resin layer (22), wherein the antistatic coating (21) is arranged on the surface of the polyester resin layer (22).

6. The polyester film with antistatic properties according to claim 1, characterized in that: The first telescopic spring (5) is fixedly connected between the connecting rod (6) and the L-shaped plate (4), and the pressing roller (7) is located below the L-shaped plate (4).

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