High-strength PE stretch film

Abstract

The utility model relates to the technical field of stretch films, and discloses a high-strength PE stretch film which comprises a winding rod, a film body is wound on the surface of the winding rod, a reinforcing layer is arranged in the film body, mounting blocks are arranged at the two ends of the winding rod, supporting blocks are arranged above the mounting blocks, conveying rods are rotationally arranged in the two supporting blocks, and a sliding frame is arranged at the top ends of the two supporting blocks. A sliding block is slidably arranged at the bottom of the sliding frame, a cutter is arranged at the bottom end of the sliding block, a moving assembly is arranged at the top of the sliding frame, and a limiting assembly is arranged on one side of the supporting block; through the arranged moving assembly, the moving frame moves in the horizontal direction, the arranged pressing rod is pressed, the sliding block and the cutter can move in the vertical direction, then the film body can be integrally cut and cut off, the section of the film body is kept neat, the film body does not need to be cut again, and the cutting efficiency of the film body is improved. And the strength of the stretch film can be improved, the tensile strength of the stretch film is improved, and the use convenience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of stretch films, in particular to a high-strength PE stretch film. Background Technique

[0002] The PE stretch film is mainly composed of a polyethylene (PE) substrate, a plasticizer, an antioxidant, and functional additives. Among them, the PE substrate provides the basic properties of the film material, such as flexibility and transparency; the plasticizer is used to improve the plasticity and processing performance of the film material; the antioxidant is used to improve the aging resistance of the film material; and the functional additives are added according to specific requirements, such as antifogging agents, antibacterial agents, etc.

[0003] Among them, the "stretch film with rust and moisture protection functions" disclosed in the patent application number "202021676412.4" "comprises a film body and a cutting mechanism, the cutting mechanism penetrates the film body and is located inside the film body, the film body includes a protective layer, a functional layer, and a partition layer, the functional layer is arranged on the upper surface of the protective layer, and the partition layer is arranged on the upper surface of the functional layer". In the present utility model, the initial state of the cutting piece and the first spring is a stretched state. When the film body is in use, the film layer is first passed through the through groove and then used. Through the first spring, the L-shaped connecting block always fits on the surface of the film body as the thickness of the film body decreases. When it is necessary to cut off after use, the blade is pushed by pressing the button block to cut a small hole in the film layer, facilitating the truncation of the film layer and ensuring the integrity of the cut.

[0004] However, the above method still has the following defects: a small hole is cut in the film layer by using a blade to truncate the film layer, but a small hole is only cut at one end of the film layer. When pulling and truncating the film layer, it is very easy to cause the cross-section of the film layer to be uneven, and it is necessary to cut again, affecting the subsequent use of the film layer. Summary of the Utility Model

[0005] In view of the deficiencies of the prior art, the present utility model provides a high-strength PE stretch film, which has the advantages of being able to truncate the film body integrally, not requiring pulling operations, ensuring the neatness of its cross-section, not affecting subsequent use, and at the same time improving its own strength and having a better use effect, and solves the problems raised in the above background technique.

[0006] The present utility model provides the following technical solution: a high-strength PE stretch film, including a winding rod, the surface of the winding rod is wound with a film body, a reinforcing layer is arranged inside the film body, mounting blocks are arranged at both ends of the winding rod, a support block is arranged above the mounting block, a conveying rod is rotatably arranged inside the two support blocks, a sliding frame is arranged at the top of the two support blocks, a sliding block is slidably arranged at the bottom of the sliding frame, a cutting knife is arranged at the bottom end of the sliding block, a moving component is arranged at the top of the sliding frame, and a limiting component is arranged on one side of the support block.

[0007] As a preferred technical solution of the present utility model, the material of the reinforcing layer is polybutylene terephthalate. An installation plate is provided at the top of the side of the installation block facing away from the film body, and the inside of the installation plate is fixedly connected to the top of the winding rod by bolts.

[0008] As a preferred technical solution of the present utility model, rectangular grooves are formed on both sides of the installation block, sliding rods are arranged inside the rectangular grooves, and the top ends of the sliding rods penetrate through the installation block and are fixedly connected to one side of the bottom end of the support block.

[0009] As a preferred technical solution of the present utility model, a limiting plate is provided at the bottom end of the sliding rod, a first spring is provided at the bottom end of the limiting plate, and the bottom end of the first spring is fixedly connected to the bottom end of the inner wall of the rectangular groove.

[0010] As a preferred technical solution of the present utility model, the moving assembly includes a moving frame, the moving frame is slidably arranged on the top of the sliding frame, a moving groove matching the moving frame is formed on the top of the sliding frame, a guide rod is arranged inside the moving groove, the sliding frame is slidably connected to the guide rod, a pressing rod is slidably arranged on the top of the moving frame, and the bottom end of the pressing rod is fixedly connected to the top end of the slider.

[0011] As a preferred technical solution of the present utility model, a second spring is arranged between the slider and the moving frame, and the second spring is sleeved outside the pressing rod. A pressing cap is provided at the top end of the pressing rod, and a chute matching the slider is formed at the bottom of the sliding frame.

[0012] As a preferred technical solution of the present utility model, the limiting assembly includes a fixing plate, the fixing plate is fixedly installed on one side of the support block, a screw rod is threadedly arranged inside the fixing plate, and rubber rings are arranged at both ends of the conveying rod.

[0013] As a preferred technical solution of the present utility model, a rotating column is provided at one end of the screw rod facing away from the rubber ring, and anti-slip lines are provided on the surface of the rotating column.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] 1. For this high-strength PE stretch film, through the provided moving assembly, the moving frame can move horizontally, and by pressing the provided pressing rod, the slider and the cutter can move vertically, thereby facilitating the overall cutting and truncation of the film body, keeping the cross-section of the film body neat, eliminating the need for secondary cutting of the film body, facilitating the subsequent use of the film body, and the reinforcing layer provided inside the film body can improve the strength of the stretch film itself, enhance its tensile strength, and has good use convenience.

[0016] 2. For this high-strength PE stretching film, through the set limit component, when the screw rotates forward, the screw generates displacement inside the fixed plate, making one end of the screw fit with the rubber ring, so as to limit the conveying rod, facilitating the limiting effect during film body truncation and preventing the conveying rod from rotating during use.

[0017] 3. For this high-strength PE stretching film, through the installation plate and bolts set at the installation block, it is convenient to disassemble the bolts, separate the installation block from the winding rod, and make the winding rod unrestricted during the process of winding the film body, facilitating the winding of the film body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is an exploded structural schematic diagram of the winding rod of the present utility model;

[0020] Figure 3 is a sectional structural schematic diagram of the film body of the present utility model;

[0021] Figure 4 is an exploded structural schematic diagram of the moving component of the present utility model;

[0022] Figure 5 is an exploded structural schematic diagram of the installation block of the present utility model;

[0023] Figure 6 is the present utility model Figure 5 the enlarged structural schematic diagram at A in;

[0024] Figure 7 is the present utility model Figure 2 the enlarged structural schematic diagram at B in.

[0025] In the figure: 1, winding rod; 2, film body; 3, strengthening layer; 4, installation block; 5, support block; 6, conveying rod; 7, sliding frame; 8, sliding block; 9, cutting knife; 10, sliding rod; 11, moving component; 1101, moving frame; 1102, pressing rod; 1103, spring two; 1104, pressing cap; 12, limit component; 1201, fixed plate; 1202, screw; 1203, rotating column; 13, rubber ring; 14, rectangular groove; 15, limiting plate; 16, spring one; 17, installation plate; 18, bolt; 19, guide rod; 20, chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-7 , a high-strength PE stretch film, including a winding rod 1, on the surface of the winding rod 1 is wound a film body 2, and a reinforcing layer 3 is provided inside the film body 2. By providing the reinforcing layer 3 inside the film body 2, the strength of the stretch film itself can be improved, its tensile strength can be increased, and the usability is good. Installation blocks 4 are provided at both ends of the winding rod 1, and support blocks 5 are provided above the installation blocks 4. A conveying rod 6 is rotatably provided inside the two support blocks 5. By passing one end of the film body 2 through between the conveying rod 6 and the sliding frame 7, the film body 2 is conveyed through the conveying rod 6. Sliding frames 7 are provided at the tops of the two support blocks 5. A slider 8 is slidably provided at the bottom of the sliding frame 7, and a cutting knife 9 is provided at the bottom end of the slider 8. A moving assembly 11 is provided at the top of the sliding frame 7. By providing the moving assembly 11, the slider 8 and the cutting knife 9 can be moved in the vertical direction, and can be moved horizontally along the sliding frame 7, so as to facilitate the overall cutting of the film body 2, make the cross-section of the film body 2 neat, and there is no need to cut the film body 2 again, which is convenient for subsequent use of the film body 2. A limiting assembly 12 is provided on one side of the support block 5, which is convenient for limiting the conveying rod 6 during the process of truncating the film body 2 and facilitating the truncation of the film body 2;

[0028] The moving assembly 11 includes a moving frame 1101, the moving frame 1101 is slidably provided on the top of the sliding frame 7. A moving groove matching the moving frame 1101 is opened on the top of the sliding frame 7. A guide rod 19 is provided inside the moving groove, and the sliding frame 7 is slidably connected to the guide rod 19. A pressing rod 1102 is slidably provided on the top of the moving frame 1101, and the bottom end of the pressing rod 1102 is fixedly connected to the top end of the slider 8. By pressing the provided pressing rod 1102, the slider 8 and the cutting knife 9 are driven to move in the vertical direction, so that the cutting knife 9 contacts the film body 2 on the surface of the conveying rod 6. By moving the cutting knife 9, it is convenient to perform the overall cutting of the film body 2, and the neatness of the cross-section of the film body 2 when being truncated can be ensured;

[0029] A second spring 1103 is provided between the slider 8 and the moving frame 1101, and the second spring 1103 is sleeved outside the pressing rod 1102. A pressing cap 1104 is provided at the top end of the pressing rod 1102. A sliding groove 20 matching the slider 8 is opened at the bottom of the sliding frame 7. By providing the second spring 1103, it is convenient to play a role in shrinking and resetting the pressing rod 1102, so that the slider 8 plays a role in limiting and guiding during sliding;

[0030] The limiting component 12 includes a fixing plate 1201 which is fixedly installed on one side of the supporting block 5. A screw rod 1202 is internally threaded in the fixing plate 1201. Rubber rings 13 are provided at both ends of the conveying rod 6. By rotating the screw rod 1202, the screw rod 1202 can be displaced at the fixing plate 1201 to limit it at the rubber ring 13, so as to facilitate the limiting of the conveying rod 6.

[0031] A rotating column 1203 is provided at one end of the screw rod 1202 away from the rubber ring 13. Anti-slip lines are provided on the surface of the rotating column 1203, which is convenient for rotating the screw rod 1202 through the rotating column 1203 and the anti-slip lines;

[0032] The material of the reinforcing layer 3 is polybutylene terephthalate, which has good tensile strength and impact resistance, facilitating the use of the stretching film. At the top of the side of the mounting block 4 away from the film body 2, there is a mounting plate 17. The inside of the mounting plate 17 is fixedly connected to the top of the winding rod 1 through a bolt 18. By removing the bolt 18, it is convenient to remove the mounting block 4 so that the winding rod 1 is not restricted when winding the film body 2;

[0033] Rectangular grooves 14 are opened on both sides of the mounting block 4. Slide rods 10 are slidably arranged inside the rectangular grooves 14. The top ends of the slide rods 10 penetrate through the mounting block 4 and are fixedly connected to one side of the bottom end of the supporting block 5, which is convenient for supporting and fixing the supporting block 5 through the slide rods 10;

[0034] A limiting plate 15 is provided at the bottom end of the slide rod 10. A first spring 16 is provided at the bottom end of the limiting plate 15. The bottom end of the first spring 16 is fixedly connected to the bottom end of the inner wall of the rectangular groove 14. The first spring 16 cooperates with the limiting plate 15 to make the slide rod 10 play a role of supporting and rebounding.

[0035] During use, one end of the film body 2 is passed through between the conveying rod 6 and the carriage 7, so that the film body 2 is conveyed along the surface of the conveying rod 6. By providing the reinforcing layer 3 inside the film body 2, the strength of the stretch film itself can be improved, its tensile strength can be increased, and its use effect can be enhanced. When it is necessary to cut off the film body 2, by rotating the rotating column 1203 provided, the screw rod 1202 is driven to rotate, so that the screw rod 1202 generates a displacement at the fixed plate 1201, so that one end of the screw rod 1202 contacts the surface of the rubber ring 13, so as to limit the conveying rod 6 and prevent it from rotating. Immediately afterwards, by pressing the pressing cap 1104 provided, due to the downward pressing of the pressing cap 1104, the pressing rod 1102, the slider 8 and the cutter 9 move in the vertical direction, so that the cutter 9 contacts the surface of the film body 2. Then, the moving frame 1101 provided is moved, so that the moving frame 1101 slides on the top of the carriage 7, that is, drives the cutter 9 to move in the horizontal direction, so that the film body 2 on the surface of the conveying rod 6 can be integrally cut off, so that the cross section of the film body 2 remains neat, and there is no need to cut the film body 2 again, which is convenient for subsequent use of the film body 2;

[0036] After the cutting is completed, reverse the rotation of the rotating column 1203 provided, so that the screw rod 1202 is separated from the rubber ring 13, so that the film body 2 on the surface of the conveying rod 6 can be conveyed again, and the film body 2 can be cut off again; when it is necessary to wind the film body 2 onto the winding rod 1 again, by removing the bolt 18 provided, the two mounting blocks 4 are separated from the winding rod 1, and the film body 2 can be wound onto the winding rod 1 again.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength PE stretch film, comprising a winding rod (1), characterized in that: The surface of the winding rod (1) is wound with a film body (2), and a reinforcing layer (3) is provided inside the film body (2). Both ends of the winding rod (1) are provided with mounting blocks (4), and a support block (5) is provided above the mounting block (4). A conveying rod (6) is provided inside the two support blocks (5) for rotation. A slide (7) is provided at the top of the two support blocks (5), and a slider (8) is provided at the bottom of the slide (7). A cutter (9) is provided at the bottom of the slider (8). A moving component (11) is provided at the top of the slide (7), and a limiting component (12) is provided on one side of the support block (5).

2. The high-strength PE stretch film according to claim 1, wherein: The reinforcing layer (3) is made of polybutylene terephthalate, and a mounting plate (17) is provided on the top of the mounting block (4) facing away from the membrane body (2). The interior of the mounting plate (17) is fixedly connected to the top of the winding rod (1) via bolts (18).

3. The high-strength PE stretching film according to claim 1, wherein: Rectangular grooves (14) are provided on both sides of the mounting block (4), a sliding rod (10) is slidably provided inside the rectangular groove (14), and the top end of the sliding rod (10) passes through the mounting block (4) and is fixedly connected to one side of the bottom end of the support block (5).

4. The high-strength PE stretching film according to claim 3, wherein: The bottom end of the slide bar (10) is provided with a limit plate (15), the bottom end of the limit plate (15) is provided with a spring (16), and the bottom end of the spring (16) is fixedly connected to the bottom end of the inner wall of the rectangular groove (14).

5. The high-strength PE stretching film according to claim 1, wherein: The moving assembly (11) comprises a moving frame (1101), the moving frame (1101) is slidably arranged on the top of the slide (7), a moving groove matching the moving frame (1101) is provided on the top of the slide (7), a guide rod (19) is provided inside the moving groove, the slide (7) is slidably connected to the guide rod (19), a pressure rod (1102) is slidably provided on the top of the moving frame (1101), and the bottom end of the pressure rod (1102) is fixedly connected to the top end of the slider (8).

6. The high-strength PE stretch film according to claim 5, wherein: A second spring (1103) is provided between the slider (8) and the movable frame (1101), and the second spring (1103) is sleeved on the outside of the pressure rod (1102). A pressure cap (1104) is provided at the top end of the pressure rod (1102), and a sliding groove (20) matching the slider (8) is provided at the bottom of the slide frame (7).

7. The high-strength PE stretching film according to claim 1, characterized in that: The limiting assembly (12) comprises a fixing plate (1201), the fixing plate (1201) being fixedly mounted on one side of the support block (5), the internal thread of the fixing plate (1201) being provided with a screw rod (1202), and both ends of the conveying rod (6) being provided with a rubber ring (13).

8. The high-strength PE stretching film according to claim 7, wherein: A rotating column (1203) is provided at one end of the screw rod (1202) away from the rubber ring (13), and a surface of the rotating column (1203) is provided with anti-slip grooves.

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