Environment-friendly composite plastic protective film

Abstract

The utility model discloses an environment-friendly composite plastic protective film, which belongs to the technical field of composite protective films, and comprises a protective film body, a rolling assembly, a support plate and a plurality of limit rods, the protective film body comprises a film body, a U-shaped clamping plate and a plurality of elastic rings, one end of the film body is detachably connected with the U-shaped clamping plate, the elastic rings are fixedly connected with one side of the U-shaped clamping plate, and the rolling assembly is fixedly connected with the U-shaped clamping plate. The elastic circular ring is clamped and matched with the periphery of the limiting rod, the top of the limiting rod is fixedly connected with the bottom of the supporting plate, the supporting plate is installed on the top wall of one side of the tray through a screw, and the winding assembly comprises a film winding roller, a pair of rotating bases, a pair of fixing rods and a pair of plane volute springs. The flat spiral spring rebounds to drive the film winding roller to rotate, the film body is taken back and wound on the periphery of the film winding roller, and therefore the protective film body can be reused, and the problems that most existing plastic protective films are disposable articles, a large amount of plastic garbage is prone to being generated, and environmental sanitation is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite protective films, in particular to an environmentally friendly composite plastic protective film. Background Art

[0002] Functionally, the protective film is a layer of film covering the physical objects we want to protect, which plays a certain protective role. According to the purpose, the protective film can be divided into digital product protective film, car protective film, household protective film, food preservation protective film, etc. Among them, the plastic protective film is the simplest macromolecular organic compound and the most widely used macromolecular material in the world today. The plastic protective film is based on a special polyethylene plastic film and is divided into high-density polyethylene protective film, medium-density polyethylene protective film and low-density polyethylene protective film according to the density. The biggest advantage of the plastic protective film is that the protected product is not polluted, corroded, or scratched during the production, processing, transportation, storage and use, and the original smooth and shiny surface is protected, thereby improving the quality and market competitiveness of the product.

[0003] When the factory produces finished products and packages them, they are often stacked on pallets for easy transportation and transfer. At the same time, a layer of plastic protective film will be covered on the top of the product after stacking is completed to protect and limit the products at the bottom, prevent dust from covering them and avoid the collapse of goods. Most of the existing plastic protective films are disposable. When in use, a section of the protective film is torn off from the entire roll of protective film and covered on the surface of the goods. After the transfer is completed, the protective film will be removed and discarded, causing a large amount of plastic waste, seriously affecting environmental hygiene. Utility Model Content

[0004] The utility model aims to provide an environmentally friendly composite plastic protective film, which can be reused many times and improves the environmental protection of the plastic protective film.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The wrapping assembly is a kind of environmentally friendly composite plastic protective film, comprising a protective film body, a winding assembly, a support plate and a plurality of limit rods. The protective film body comprises a film body, a U-shaped splint and a plurality of elastic rings. One end of the film body is detachably connected to the U-shaped splint, the elastic ring is fixedly connected to one side of the U-shaped splint, the elastic ring is snap-fitted with the outer periphery of the limit rod, the top of the limit rod is fixedly connected to the bottom of the support plate, and the support plate is installed on the top wall of one side of the tray by screws. The winding assembly comprises a film winding roll, a pair of rotating seats, a pair of fixing rods and a pair of planar volute springs. The rotating seats are installed on the bottom wall of the other side of the tray by screws. Circular grooves are provided at opposite ends of the two rotating seats, and two ends of the film winding roll are respectively rotatably connected to the two circular grooves. The film body is wound around the periphery of the film winding roll, and the other end of the film body is fixedly connected to the periphery of the film winding roll. The two fixing rods are symmetrically distributed at both ends of the film winding roll, and one end of the fixing rod is fixedly connected to the inner wall of the circular groove. The planar volute spring is installed on the fixing rod, and the planar volute spring is used to provide thrust to the film winding roll.

[0007] Furthermore, two planar volute springs are symmetrically distributed at both ends of the film winding roller, and grooves are provided on the periphery of the fixed rod and the inner walls at both ends of the film winding roller. The planar volute spring is wound around the periphery of the fixed rod, and the two ends of the planar volute spring are respectively engaged with the grooves on the fixed rod and the grooves at one end of the film winding roller.

[0008] Furthermore, the protective film body also includes multiple side covering components, the side covering components include a pair of side membranes, a pair of Velcro sub-surfaces and a pair of Velcro mother surfaces, the two side membranes are symmetrically distributed on both sides of the membrane body and fixedly connected to the membrane body, a folding groove is opened on the top of the side membrane, the top of the Velcro sub-surface is fixedly connected to the bottom of one of the side membranes, the bottom of the Velcro mother surface is fixedly connected to the top of one of the side membranes, and the Velcro sub-surface and the Velcro mother surface are bonded to each other.

[0009] Furthermore, the protective film body also includes a wear-resistant layer, the top of the wear-resistant layer is fixedly connected to the bottom of the film body and the bottom of the side film, the wear-resistant layer is made of polycaprolactone material, and the film body is made of polylactide material.

[0010] Furthermore, the inner wall of the U-shaped clamp is plugged into one end of the membrane body, and the protective membrane body also includes a plurality of bolts and a plurality of nuts. The bolts pass through the U-shaped clamp and one end of the membrane body and are threadedly connected to the nuts.

[0011] Furthermore, the winding assembly also includes a fixed plate and a plurality of cutting teeth, the cutting teeth are fixedly connected to one end of the fixed plate, the two sides of the fixed plate are respectively fixedly connected to one end of the two rotating seats, and a plurality of cutting grooves are opened on the top of the film body.

[0012] Beneficial effects of the utility model: The utility model provides a protective film body, a winding assembly, and a limiting rod. When the protective film body is used to protect the goods on the pallet, the winding assembly and the limiting rod are respectively installed at both ends of the pallet, and the U-shaped clamp is pulled to unfold the protective film body and cover the surface of the goods on the pallet, and the elastic ring is sleeved around the limiting rod. Then the U-shaped clamp is loosened, and the film winding roller is driven by the plane spiral spring to rotate in the opposite direction to tighten the protective film body, so that the working section of the protective film body can be covered on the top of the goods. When the use is completed, the elastic ring is separated from the limiting rod, and the plane spiral spring rebounds, driving the film winding roller to rotate, so that the film body can be retracted and wound around the film winding roller, so that the protective film body can be reused, avoiding the generation of a large amount of waste plastic protective film, and improving the environmental protection of the plastic protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.

[0014] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the protective film body structure of the utility model;

[0017] Figure 4 for Figure 3 A magnified view of the structure at A;

[0018] Figure 5 This is a structural exploded view of the winding component of the utility model;

[0019] Figure 6 This is a schematic diagram of the support plate structure of the utility model.

[0020] In the figure:

[0021] 1. Protective film body; 10. Film body; 100. Cutting groove; 11. U-shaped splint; 12. Elastic ring; 13. Side covering assembly; 14. Side film; 140. Folding groove; 15. Velcro sub-surface; 16. Velcro mother surface; 17. Wear-resistant layer; 18. Bolt; 19. Nut;

[0022] 2. Winding assembly; 20. Film winding roller; 200. Groove; 21. Rotating seat; 210. Circular groove; 22. Fixed rod; 23. Planar spiral spring; 24. Fixed plate; 25. Cutting teeth;

[0023] 3. Support plate; 30. Limit rod; 31. Tray. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0025] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0026] Reference Figures 1 to 6The environmentally friendly composite plastic protective film shown in the figure includes a protective film body 1, a winding component 2, a support plate 3 and multiple limiting rods 30. The protective film body 1 includes a film body 10, a U-shaped clamping plate 11 and multiple elastic rings 12. One end of the film body 10 is detachably connected to the U-shaped clamping plate 11, and the elastic ring 12 is fixedly connected to one side of the U-shaped clamping plate 11. The elastic ring 12 is engaged with the outer periphery of the limiting rod 30. The top of the limiting rod 30 is fixedly connected to the bottom of the support plate 3. The support plate 3 is installed on the top wall of one side of the pallet 31 by screws, and the screws are passed through the support plate 3 and installed at one end of the pallet 31. The U-shaped clamping plate 11 is pulled to unfold the protective film body 1 and cover the surface of the goods on the pallet 31, and the elastic ring 12 is sleeved on the outer periphery of the limiting rod 30. Then, the U-shaped clamping plate 11 is loosened to tighten the protective film body 1, and the elastic ring 12 is clamped on the outer periphery of the limiting rod 30, so that the working section of the protective film body 1 covers the top of the goods. The winding assembly 2 includes a film winding roller 20, a pair of rotating seats 21, a pair of fixed rods 22 and a pair of planar spiral springs 23. The rotating seat 21 is installed on the bottom wall on the other side of the tray 31 by screws. Circular grooves 210 are opened at the opposite ends of the two rotating seats 21. The two ends of the film winding roller 20 are rotatably connected with the two circular grooves 210 respectively. The film body 10 is wound around the periphery of the film winding roller 20, and the other end of the film body 10 is fixedly connected to the periphery of the film winding roller 20. The two fixed rods 22 are symmetrically distributed at the two ends of the film winding roller 20. One end of the fixed rod 22 is fixedly connected to the inner wall of the circular groove 210. The planar spiral spring 23 is installed on the fixed rod 22. The planar spiral spring 23 is used to provide thrust to the film winding roller 20. The screw is passed through the rotating seat 21 and installed at the other end of the tray 31. When the U-shaped clamp 11 is pulled, the film body 10 unfolds and drives the film winding roller 20 to rotate. At this time, the flat spiral spring 23 rotates with the film winding roller 20. When the film body 10 covers the surface of the goods, the rebound force of the flat spiral spring 23 drives the film winding roller 20 to rotate in the opposite direction to tighten the film body 10, so that the film body 10 is tightly covered on the top of the goods, and a certain downward pressure is provided to prevent the goods from tipping over. When use is completed, the elastic ring 12 is separated from the limit rod 30. At this time, the flat spiral spring 23 rebounds, driving the film winding roller to rotate, so that the film body 10 can be retracted and wrapped around the periphery of the film winding roller 20, so that the protective film body 1 can be reused.

[0027] Two plane scroll springs 23 are symmetrically distributed at both ends of the film winding roller 20. Grooves 200 are provided on the periphery of the fixed rod 22 and the inner walls at both ends of the film winding roller 20. The plane scroll spring 23 is wound around the periphery of the fixed rod 22. The two ends of the plane scroll spring 23 are respectively engaged with the groove 200 on the fixed rod 22 and the groove 200 at one end of the film winding roller 20. When the film winding roller 20 rotates, one end of the plane scroll spring 23 is stuck in the groove 200 on the film winding roller 20 and rotates with the film winding roller 20, and the other end is stuck in the groove 200 on the fixed rod 22 and remains stationary. With the rotation of the film winding roller 20, the plane scroll spring 23 is deformed and rotated, thereby providing thrust to the film winding roller 20, so that it maintains a tendency to rotate in the opposite direction.

[0028] The protective film body 1 also includes a plurality of side covering components 13, and the side covering components 13 include a pair of side films 14, a pair of Velcro sub-surfaces 15, and a pair of Velcro mother surfaces 16. The two side films 14 are symmetrically distributed on both sides of the film body 10 and are fixedly connected to the film body 10. A folding groove 140 is provided on the top of the side film 14. The top of the Velcro sub-surface 15 is fixedly connected to the bottom of one of the side films 14. The bottom of the Velcro mother surface 16 is fixedly connected to the top of one of the side films 14. The Velcro sub-surface 15 and the Velcro mother surface 16 are bonded to each other. After unfolding the film body 10, the two side films 14 are pulled to separate the Velcro mother surface 16 from the Velcro sub-surface 15, and the side films 14 are hung down to expand the area of ​​the protective film body 1, so that both sides of the goods can be protected. After use, the side films 14 are folded to the top of the film body 10 along the folding groove 140, and the Velcro mother surface 16 and the Velcro sub-surface 15 are bonded to each other, so that they can be easily stored.

[0029] The protective film body 1 also includes a wear-resistant layer 17. The top of the wear-resistant layer 17 is fixedly connected to the bottom of the film body 10 and the bottom of the side film 14. The wear-resistant layer 17 is made of polycaprolactone material. Polycaprolactone is corrosion-resistant, heat-resistant, and has excellent mechanical properties. The wear-resistant layer 17 made of polycaprolactone material can protect the film body 10 from wear and tear between it and the cargo, thereby extending the service life of the protective film body 1. The film body 10 is made of polylactide material. The polylactide material has good ductility and good tensile strength, which can make the protective film body 1 fit the surface of the cargo. In addition, polylactide is made of renewable plant resources and has good degradability, which further improves the environmental protection of the protective film body 1.

[0030] The inner wall of the U-shaped clamp 11 is plugged into one end of the film body 10, and the protective film body 1 also includes a plurality of bolts 18 and a plurality of nuts 19. The bolts 18 pass through the U-shaped clamp 11 and one end of the film body 10 and are threadedly connected with the nuts 19. The section of the protective film body 1 covering the goods is the working section. When the working section of the protective film body 1 has been used for a long time and its durability is reduced or damaged, the bolts 18 are turned to separate it from the nuts 19, and the protective film body 1 is pulled out of the U-shaped clamp 11, and then the protective film body 1 is moved to separate it from the U-shaped clamp 11, and the old and damaged protective film body 1 is cut off, and then the U-shaped clamp 11 is reconnected with the cut edge of the protective film body 1, and the replacement of the working section of the protective film body 1 can be completed.

[0031] The winding assembly 2 further includes a fixed plate 24 and a plurality of cutting teeth 25. The cutting teeth are fixedly connected to one end of the fixed plate 24. Both sides of the fixed plate 24 are respectively fixedly connected to one end of two rotating seats 21. A plurality of cutting grooves 100 are provided on the top of the film body 10. Pull out the working section of the protective film body 1, align the cutting groove 100 of the part to be divided with the cutting teeth 25, squeeze and pull the protective film body 1 to both sides at the same time, and the protective film body 1 can be cut.

[0032] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. An environmentally friendly composite plastic protective film, characterized in that: The protective film body (1) comprises a protective film body (1), a winding assembly (2), a support plate (3) and a plurality of limit rods (30); the protective film body (1) comprises a film body (10), a U-shaped clamping plate (11) and a plurality of elastic rings (12); one end of the film body (10) is detachably connected to the U-shaped clamping plate (11); the elastic ring (12) is fixedly connected to one side of the U-shaped clamping plate (11); the elastic ring (12) is engaged with the outer periphery of the limit rod (30); the top of the limit rod (30) is fixedly connected to the bottom of the support plate (3); the support plate (3) is mounted on the top wall of one side of the tray (31) by screws; the winding assembly (2) comprises a film winding roller (20), a pair of rotating seats (21), a pair of fixed rods (22) and A pair of planar volute springs (23), a rotating seat (21) is mounted on the bottom wall of the other side of the tray (31) by means of screws, a circular groove (210) is provided at the opposite ends of the two rotating seats (21), the two ends of the film winding roller (20) are respectively rotatably connected to the two circular grooves (210), the film body (10) is wound around the periphery of the film winding roller (20), the other end of the film body (10) is fixedly connected to the periphery of the film winding roller (20), two fixed rods (22) are symmetrically distributed at the two ends of the film winding roller (20), one end of the fixed rod (22) is fixedly connected to the inner wall of the circular groove (210), the planar volute spring (23) is mounted on the fixed rod (22), and the planar volute spring (23) is used to provide thrust to the film winding roller (20).

2. The environmentally friendly composite plastic protective film according to claim 1, characterized in that: Two planar volute springs (23) are symmetrically distributed at the two ends of the film winding roller (20), and grooves (200) are provided on the periphery of the fixed rod (22) and the inner walls at both ends of the film winding roller (20). The planar volute spring (23) is wound around the periphery of the fixed rod (22), and the two ends of the planar volute spring (23) are respectively engaged with the grooves (200) on the fixed rod (22) and the grooves (200) at one end of the film winding roller (20).

3. The environmentally friendly composite plastic protective film according to claim 1, characterized in that: The protective film body (1) further comprises a plurality of side covering components (13), wherein the side covering components (13) comprise a pair of side films (14), a pair of Velcro sub-surfaces (15) and a pair of Velcro mother surfaces (16), wherein the two side films (14) are symmetrically distributed on both sides of the film body (10) and are fixedly connected to the film body (10), a folding groove (140) is provided on the top of the side films (14), the top of the Velcro sub-surface (15) is fixedly connected to the bottom of one of the side films (14), the bottom of the Velcro mother surface (16) is fixedly connected to the top of one of the side films (14), and the Velcro sub-surface (15) and the Velcro mother surface (16) are bonded to each other.

4. The environmentally friendly composite plastic protective film according to claim 3, characterized in that: The protective film body (1) further comprises a wear-resistant layer (17), the top of the wear-resistant layer (17) being fixedly connected to the bottom of the film body (10) and the bottom of the side film (14), the wear-resistant layer (17) being made of a polycaprolactone material, and the film body (10) being made of a polylactide material.

5. The environmentally friendly composite plastic protective film according to claim 1, characterized in that: The inner wall of the U-shaped clamping plate (11) is plugged into one end of the membrane body (10), and the protective membrane body (1) further comprises a plurality of bolts (18) and a plurality of nuts (19), wherein the bolts (18) pass through the U-shaped clamping plate (11) and one end of the membrane body (10) and are threadedly connected to the nuts (19).

6. The environmentally friendly composite plastic protective film according to claim 5, characterized in that: The winding assembly (2) further comprises a fixed plate (24) and a plurality of cutting teeth (25), wherein the cutting teeth are fixedly connected to one end of the fixed plate (24), and both sides of the fixed plate (24) are respectively fixedly connected to one end of two rotating seats (21), and a plurality of cutting grooves (100) are provided on the top of the film body (10).

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