Anti-aging PVC (polyvinyl chloride) calendering film

Abstract

The utility model is applicable to the technical field of PVC (polyvinyl chloride) calendering films, and provides an anti-aging PVC calendering film which comprises a calendering film body, a paper tube is arranged in the calendering film body, and one end of the calendering film body is fixedly connected with the paper tube; a storage box is arranged on the outer side of the calendering film body, a closing cover is arranged at one end of the storage box, and a discharging opening is formed in one side of the storage box; a buckle mechanism for opening or closing the closing cover is arranged on the side, close to the storage box, of the closing cover. According to the anti-aging PVC calendering film provided by the utility model, the storage box, the closing cover, the discharge port and the buckle mechanism are arranged, so that the function of storing and protecting the calendering film body is realized, and the problem that the existing PVC calendering film does not have the storage and protection functions although the ageing resistance and photooxidation resistance of a main film are improved, and the service life of the calendering film is prolonged is solved. And the problem that the PVC calendering film is damaged due to touch or friction of a sharp object is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of PVC calendering films, in particular to an anti-aging PVC calendering film. Background Art

[0002] PVC calendered film is made through the calendering process. Calendering is the process of passing heated polyvinyl chloride plastic through the gap between one or more pairs of horizontal rollers rotating in opposite directions, so that the material is subjected to extrusion and extension, and becomes a thin product with a certain thickness, width and smooth surface. After subsequent processes such as voltage, lamination, gluing, inflation, flocking, printing, etc., the calendered film can be processed into a wide range of PVC products, such as inflatable toys, inflatable boats, swimming rings, inflatable beds, umbrellas, stationery covers, tablecloths, shower curtains, surface protection films, decorative films, adhesive tapes, furniture lamination, etc. These products can be seen everywhere in our lives. PVC calendered film has a wide range of applications in industrial packaging, electrical insulation, light box advertising, engineering waterproofing, daily necessities packaging, etc.

[0003] The patent document with the prior art announcement number CN 207416216 U provides an anti-aging PVC calendered film. The secondary film structure of the device forms multiple absorptions of ultraviolet rays, effectively improving the anti-aging and anti-photooxidation properties of the main film, and effectively solving the problem in the prior art that the PVC film turns yellow due to ultraviolet radiation, which in turn causes the deterioration of the film's appearance quality and mechanical properties and shortens the film's service life. Although the current PVC calendered film improves the anti-aging and anti-photooxidation properties of the main film, the current PVC calendered film does not have the function of storage and protection, resulting in the PVC calendered film being damaged by contact or friction with sharp objects. Utility Model Content

[0004] The utility model provides an anti-aging PVC calendering film, aiming to solve the problem that although the current PVC calendering film improves the anti-aging and light oxidation resistance of the main film, the current PVC calendering film does not have the function of storage and protection, resulting in the PVC calendering film being damaged due to contact or friction with sharp objects.

[0005] The utility model is implemented as follows: an anti-aging PVC calendered film comprises: a calendered film body, a paper tube is arranged inside the calendered film body, and one end of the calendered film body is fixedly connected to the paper tube; a storage box is arranged outside the calendered film body, a closing cover is arranged at one end of the storage box, and a discharge port is opened on one side of the storage box; a buckle mechanism for opening or closing the closing cover is arranged on a side of the closing cover close to the storage box.

[0006] Preferably, the buckle mechanism includes: two elastic sheets are fixedly connected to one side of the closing cover close to the storage box, and trapezoidal buckles are fixedly connected to opposite sides of the two elastic sheets; and the storage box is provided with a slot close to the buckle, and the slot is adapted to the buckle.

[0007] Preferably, rotating shafts are embedded at both ends of the paper tube, and the two rotating shafts are rotatably connected to the storage box and the closing cover respectively.

[0008] Preferably, the storage box is fixedly connected with a fixing bar near the discharge port, and a serrated cutting knife is fixedly connected to the top of the fixing bar.

[0009] Preferably, the calendered film body comprises a PVC film, an epoxy resin layer, a fiber layer and an anti-oxidation layer; the top of the PVC film is fixedly connected to the epoxy resin layer, the top of the epoxy resin layer is fixedly connected to the fiber layer, and the top of the fiber layer is fixedly connected to the anti-oxidation layer.

[0010] Preferably, a release paper is provided on a side of the calendered film body away from the paper tube, and the release paper is bonded to the calendered film body.

[0011] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0012] By providing a storage box, a closing cover, a discharge port and a snap mechanism, the function of storing and protecting the calendered film body is realized, which solves the problem that although the current PVC calendered film has improved the aging resistance and light oxidation resistance of the main film, the current PVC calendered film does not have the storage and protection function, which causes the PVC calendered film to be damaged due to touch or friction with sharp objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a side sectional view of the utility model;

[0015] Figure 3 It is a schematic diagram of the closed cover structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the calendered film body of the utility model.

[0017] In the figure: 1. calendered film body; 2. paper tube; 3. storage box; 4. closing cover; 5. discharge port; 6. snap mechanism; 7. elastic sheet; 8. snap; 9. slot; 10. rotating shaft; 11. fixing strip; 12. cutting knife; 13. PVC film; 14. epoxy resin layer; 15. fiber layer; 16. anti-oxidation layer; 17. isolation paper. DETAILED DESCRIPTION

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0019] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] The utility model embodiment provides an anti-aging PVC calendering film, such as Figure 1-4 As shown, it includes: a calendered film body 1, a paper tube 2 is arranged inside the calendered film body 1, and one end of the calendered film body 1 is fixedly connected to the paper tube 2; a storage box 3 is arranged on the outside of the calendered film body 1, a closing cover 4 is arranged at one end of the storage box 3, and a discharge port 5 is opened on one side of the storage box 3; a snap mechanism 6 for opening or closing the closing cover 4 is arranged on the side of the closing cover 4 close to the storage box 3.

[0021] It should be noted that the user can place the calendered film body 1 inside the storage box 3, then pull one end of the calendered film body 1 out of the discharge port 5 of the storage box 3, and finally connect the closing cover 4 to the storage box 3 through the snap mechanism 6, thereby realizing the function of storing and protecting the calendered film body 1, and solving the problem that although the current PVC calendered film improves the aging resistance and light oxidation resistance of the main film, the current PVC calendered film does not have the storage protection function, which causes the PVC calendered film to be damaged due to touch or friction by sharp objects.

[0022] In a further preferred embodiment of the present invention, Figure 2 , 3As shown, the buckle mechanism 6 includes: two elastic sheets 7 are fixedly connected to one side of the closing cover 4 close to the storage box 3, and trapezoidal buckles 8 are fixedly connected to the opposite sides of the two elastic sheets 7; and the storage box 3 is provided with a slot 9 near the buckle 8, and the slot 9 is adapted to the buckle 8.

[0023] In this embodiment, when the user needs to close the closing cover 4, the user pushes the closing cover 4 toward the inside of the storage box 3. The storage box 3 squeezes the buckle 8 through the inclined surface of the buckle 8, and the buckle 8 drives the elastic sheet 7 to bend. When the closing cover 4 and the storage box 3 are closed, the elastic sheet 7 drives the buckle 8 to recover elastically, so that the buckle 8 moves to the inside of the slot 9 for engagement. When the user needs to open the closing cover 4, the user pushes the buckle 8 toward the inside of the storage box 3 at the same time, and the buckle 8 drives the elastic sheet 7 to bend. Then the closing cover 4 can be pulled outward, which is convenient for the user to replace the calendered film body 1.

[0024] In a further preferred embodiment of the present invention, Figure 1 , 2 As shown, rotating shafts 10 are embedded at both ends of the paper tube 2, and the two rotating shafts 10 are rotatably connected to the storage box 3 and the closing cover 4 respectively.

[0025] In this embodiment, the paper tube 2 can be flexibly rotated inside the storage box 3 , thereby facilitating the user to pull out the calendered film body 1 from the storage box 3 .

[0026] In a further preferred embodiment of the present invention, Figure 1 As shown, a fixing strip 11 is fixedly connected to the storage box 3 near the discharge port 5 , and a serrated cutting knife 12 is fixedly connected to the top of the fixing strip 11 .

[0027] In this embodiment, after pulling out a suitable length of the calendered film body 1 , the user tears the calendered film body 1 obliquely downward, so that the cutting blade 12 cuts the calendered film body 1 .

[0028] In a further preferred embodiment of the present invention, Figure 4 As shown, the calendered film body 1 includes a PVC film 13, an epoxy resin layer 14, a fiber layer 15 and an anti-oxidation layer 16; the top of the PVC film 13 is fixedly connected to the epoxy resin layer 14, the top of the epoxy resin layer 14 is fixedly connected to the fiber layer 15, and the top of the fiber layer 15 is fixedly connected to the anti-oxidation layer 16.

[0029] In this embodiment, the toughness and oxidation resistance of the calendered film body 1 are improved, thereby improving the practicality of the calendered film body 1.

[0030] In a further preferred embodiment of the present invention, Figure 1As shown, a release paper 17 is provided on the side of the calendered film body 1 away from the paper tube 2 , and the release paper 17 is bonded to the calendered film body 1 .

[0031] In this embodiment, it is convenient for the user to find the joint of the calendered film body 1 .

[0032] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0033] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0034] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. The above embodiments are only used to illustrate the technical scheme of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in each embodiment of the utility model according to the situation without conflict, without making creative work, so as to obtain different other technical solutions that are essentially not separated from the concept of the utility model, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. An anti-aging PVC calendering film, comprising: A calendered film body (1), wherein a paper tube (2) is arranged inside the calendered film body (1), and one end of the calendered film body (1) is fixedly connected to the paper tube (2); The invention is characterized in that a storage box (3) is arranged on the outside of the calendered film body (1), a closing cover (4) is arranged at one end of the storage box (3), and a discharge port (5) is opened on one side of the storage box (3); A buckle mechanism (6) for opening or closing the closing cover (4) is provided on one side of the closing cover (4) close to the storage box (3); The buckle mechanism (6) comprises: Two elastic sheets (7) are fixedly connected to one side of the closing cover (4) close to the storage box (3), and trapezoidal buckles (8) are fixedly connected to opposite sides of the two elastic sheets (7); The storage box (3) is provided with a card slot (9) near the card buckle (8), and the card slot (9) is adapted to the card buckle (8); Rotating shafts (10) are embedded at both ends of the paper tube (2), and the two rotating shafts (10) are rotatably connected to the storage box (3) and the closing cover (4) respectively; A fixing strip (11) is fixedly connected to the storage box (3) near the discharge port (5), and a sawtooth cutting knife (12) is fixedly connected to the top of the fixing strip (11).

2. An anti-aging PVC calendered film according to claim 1, characterized in that: The calendered film body (1) comprises a PVC film (13), an epoxy resin layer (14), a fiber layer (15) and an anti-oxidation layer (16); the top of the PVC film (13) is fixedly connected to the epoxy resin layer (14), the top of the epoxy resin layer (14) is fixedly connected to the fiber layer (15), and the top of the fiber layer (15) is fixedly connected to the anti-oxidation layer (16).

3. The anti-aging PVC calendered film according to claim 1, characterized in that: A separation paper (17) is provided on the side of the calendered film body (1) away from the paper tube (2), and the separation paper (17) is bonded to the calendered film body (1).

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