Polypropylene film with improved sliding performance

Abstract

The utility model relates to a polypropylene film with improved sliding performance, which belongs to the field of polypropylene films and comprises a polypropylene film body and a support cylinder, the polypropylene film body is arranged outside the support cylinder, and a protective structure is arranged on the polypropylene film body. And the protection structure comprises a first protection shell and a second protection shell, the opposite sides of the first protection shell and the second protection shell are fixedly connected with inserting blocks, and the inserting blocks are inserted into the supporting cylinder. According to the polypropylene film with the improved sliding performance, the two sides of the polypropylene film body are sleeved with a first protection shell and a second protection shell correspondingly, an insertion block is inserted into a supporting cylinder, a first connecting rod and a second connecting rod can relatively slide, and a limiting protruding block can be clamped into a limiting groove to achieve the limiting effect; therefore, the first protective shell and the second protective shell are not easy to fall off from the polypropylene film body and are convenient to take down subsequently.

Description

Technical Field

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

[0002] Polypropylene film is a film material made of polypropylene resin. It has the characteristics of light weight, transparency, heat resistance, and chemical corrosion resistance. Polypropylene film is widely used in packaging, printing, agriculture, construction and other fields. It is a common plastic film product.

[0003] Existing polypropylene films usually adopt a roll structure during transportation and storage, so that the polypropylene film is wound on a central axis to form a cylindrical roll, which is convenient for transportation and storage. At the same time, protective sleeves are set on both ends of the polypropylene roll to prevent the polypropylene roll from deforming or slipping during transportation. The protective sleeves are usually only put on both sides of the polypropylene roll and are easy to loosen. Therefore, tape is used to fix the protective sleeves on the polypropylene roll. Although this method is firm, it is more troublesome to remove. Therefore, a polypropylene film with improved sliding performance is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a polypropylene film with improved sliding properties, which has the advantages of convenient removal of the protective sleeves on both sides of the polypropylene roll, and solves the problem that the protective sleeves are fixed by tape, which makes it troublesome to remove them.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a polypropylene film with improved sliding performance, comprising a polypropylene film body and a support tube, wherein the polypropylene film body is arranged outside the support tube, and a protective structure is installed on the polypropylene film body.

[0006] The protective structure includes a first protective shell and a second protective shell, and the first protective shell and the second protective shell are fixedly connected to an insert block on opposite sides, and the insert block is inserted into the interior of the support tube. The first protective shell and the second protective shell are respectively sleeved on the left and right sides of the polypropylene film body, and the first protective shell and the second protective shell are respectively fixed to the opposite sides. A first connecting rod and a second connecting rod are fixed to the top of the second connecting rod, and a sliding groove is provided at the bottom of the first connecting rod. The sliding block is slidably connected to the interior of the sliding groove, and a clamping piece is installed on the sliding block.

[0007] Furthermore, the clamping member includes a limiting protrusion, a telescopic spring and a movable plate, the movable plate is slidably connected in an installation cavity opened inside the slider, the telescopic spring is installed between the movable plate and the inner wall of the installation cavity, and the limiting protrusion is fixedly connected to a side of the movable plate away from the telescopic spring.

[0008] Furthermore, a plurality of limiting grooves are provided inside the first connecting rod and are located on the inner top wall of the sliding groove, and the top of the limiting protrusion passes through the sliding block and is inserted into the limiting groove.

[0009] Furthermore, the polypropylene film body comprises a toughening layer and an anti-sticking layer, and the toughening layer is a blended layer of styrene-butadiene-styrene block copolymer and polypropylene.

[0010] Furthermore, the anti-sticking layer is a blended layer of an anti-blocking agent and polypropylene, and the anti-sticking layer is arranged on the inner side of the toughening layer.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0012] The polypropylene film with improved sliding performance has the first protective shell and the second protective shell respectively sleeved on both sides of the polypropylene film body, and the insert block is inserted into the interior of the support tube, and the first connecting rod and the second connecting rod can slide relatively, and the limiting protrusion can be clamped in the interior of the limiting groove to play a limiting role, so that the first protective shell and the second protective shell are not easy to fall off from the polypropylene film body, and are convenient to remove later. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0014] Figure 2 It is an enlarged view of the structure at A in the structure 1 of the utility model;

[0015] Figure 3 It is a partial cross-sectional view of the structural polypropylene film body of the utility model.

[0016] In the figure: 1. first protective shell; 2. groove; 3. plug block; 4. support tube; 5. polypropylene film body; 51. toughening layer; 52. anti-sticking layer; 6. second protective shell; 7. first connecting rod; 8. second connecting rod; 9. slider; 10. slide groove; 11. telescopic spring; 12. movable plate; 13. limit groove; 14. limit protrusion. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3In this embodiment, a polypropylene film with improved sliding performance includes a polypropylene film body 5 and a support tube 4. The polypropylene film body 5 is arranged outside the support tube 4, and a protective structure is installed on the polypropylene film body 5.

[0019] The protective structure includes a first protective shell 1 and a second protective shell 6. A groove 2 is provided on the opposite side of the first protective shell 1 and the second protective shell 6. An insert block 3 is fixedly connected to the opposite side of the first protective shell 1 and the second protective shell 6. The insert block 3 is inserted into the inside of the support tube 4. The first protective shell 1 and the second protective shell 6 are respectively sleeved on the left and right sides of the polypropylene film body 5. A first connecting rod 7 and a second connecting rod 8 are fixedly provided on the opposite side of the first protective shell 1 and the second protective shell 6. A slider 9 is fixedly connected to the top of the second connecting rod 8. A slide groove 10 is provided at the bottom of the first connecting rod 7. The slider 9 is slidably connected to the inside of the slide groove 10. A clamping piece is installed on the slider 9. A plurality of limiting grooves 13 located on the inner top wall of the slide groove 10 are provided inside the first connecting rod 7. The top of the limiting protrusion 14 passes through the slider 9 and is inserted into the inside of the limiting groove 13.

[0020] In this embodiment, the clamping part includes a limiting protrusion 14, a telescopic spring 11 and a movable plate 12. The movable plate 12 is slidably connected in an installation cavity opened inside the slider 9. The telescopic spring 11 is installed between the movable plate 12 and the inner wall of the installation cavity. The limiting protrusion 14 is fixedly connected to the side of the movable plate 12 away from the telescopic spring 11.

[0021] It should be noted that the first protective shell 1 and the second protective shell 6 are respectively sleeved on both sides of the polypropylene film body 5, and the plug 3 is inserted into the interior of the support tube 4, and the first connecting rod 7 and the second connecting rod 8 will slide relatively, and the limiting protrusion 14 will be clamped in the limiting groove 13 to play a limiting role, so that the first protective shell 1 and the second protective shell 6 are not easy to fall off from the polypropylene film body 5, and it is convenient to remove them later.

[0022] See also Figure 3 The polypropylene film body 5 includes a toughening layer 51 and an anti-sticking layer 52 . The toughening layer 51 is a blended layer of styrene-butadiene-styrene block copolymer and polypropylene, and 52 is a blended layer of an anti-blocking agent and polypropylene. The anti-sticking layer 52 is arranged on the inner side of the toughening layer 51 .

[0023] It can be understood that by providing the toughening layer 51, the toughness of the film can be increased, thereby improving its sliding performance, while the anti-sticking layer 52 can make the film surface have a certain degree of roughness, thereby reducing mutual adhesion between the films and improving the sliding performance.

[0024] The working principle of the above embodiment is as follows: the first protective shell 1 and the second protective shell 6 are respectively sleeved on both sides of the polypropylene film body 5, and the insert block 3 is inserted into the interior of the support tube 4, and the first connecting rod 7 and the second connecting rod 8 will slide relative to each other, and the limiting protrusion 14 will be clamped in the interior of the limiting groove 13 to play a limiting role, so that the first protective shell 1 and the second protective shell 6 are not easy to fall off from the polypropylene film body 5, and it is convenient to remove them later. By setting a toughening layer 51, the toughening layer 51 is a blended layer of styrene-butadiene-styrene block copolymer and polypropylene, which can increase the toughness of the film, thereby improving its sliding performance, and the anti-sticking layer 52 is a blended layer of anti-sticking agent and polypropylene, which can make the surface of the film have a certain roughness, thereby reducing the mutual adhesion between the films and improving the sliding performance.

[0025] 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.

[0026] 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 polypropylene film with improved sliding properties, comprising a polypropylene film body (5) and a support tube (4), characterized in that: The polypropylene film body (5) is arranged outside the support tube (4), and a protective structure is installed on the polypropylene film body (5); The protective structure comprises a first protective shell (1) and a second protective shell (6); an insert block (3) is fixedly connected to opposite sides of the first protective shell (1) and the second protective shell (6); the insert block (3) is inserted into the interior of the support tube (4); the first protective shell (1) and the second protective shell (6) are respectively sleeved on the left and right sides of the polypropylene film body (5); a first connecting rod (7) and a second connecting rod (8) are respectively fixed to opposite sides of the first protective shell (1) and the second protective shell (6); a slider (9) is fixedly connected to the top of the second connecting rod (8); a slide groove (10) is provided at the bottom of the first connecting rod (7); the slider (9) is slidably connected to the interior of the slide groove (10); and a clamping piece is mounted on the slider (9).

2. A polypropylene film with improved sliding properties according to claim 1, characterized in that: The clamping member comprises a limiting protrusion (14), a telescopic spring (11) and a movable plate (12); the movable plate (12) is slidably connected in a mounting cavity provided inside the slider (9); the telescopic spring (11) is installed between the movable plate (12) and the inner wall of the mounting cavity; and the limiting protrusion (14) is fixedly connected to a side of the movable plate (12) away from the telescopic spring (11).

3. A polypropylene film with improved sliding properties according to claim 2, characterized in that: The first connecting rod (7) is provided with a plurality of limiting grooves (13) located on the inner top wall of the slide groove (10), and the top of the limiting protrusion (14) passes through the slide block (9) and is inserted into the limiting groove (13).

4. A polypropylene film with improved sliding properties according to claim 1, characterized in that: The polypropylene film body (5) comprises a toughening layer (51) and an anti-sticking layer (52); the toughening layer (51) is a blended layer of styrene-butadiene-styrene block copolymer and polypropylene.

5. A polypropylene film with improved sliding properties according to claim 4, characterized in that: The anti-adhesive layer (52) is a layer of a blend of an anti-adhesive agent and polypropylene, and the anti-adhesive layer (52) is arranged on the inner side of the toughening layer (51).

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