High-strength biaxially oriented polypropylene woven bag

Abstract

The utility model relates to a high-strength biaxially oriented polypropylene woven bag, and belongs to the technical field of packaging materials, the high-strength biaxially oriented polypropylene woven bag comprises a woven bag body, reinforcing edge strips are fixed on the outer surface of the woven bag body, and two positioning blocks are fixed on each of the front side and the rear side of the woven bag body; a traction belt penetrating through the reinforcing edge strip is slidably connected into the positioning block, and two wear-resisting assemblies are fixed to the bottom of the reinforcing edge strip and used for improving the overall wear resistance. According to the high-strength biaxially oriented polypropylene woven bag, when the polypropylene woven bag is dragged, due to the fact that the abrasion-resistant assembly makes contact with the ground, the abrasion-resistant assembly can rub against the ground firstly, abrasion of the polypropylene woven bag is effectively prevented, after the abrasion-resistant assembly is used for a long time, an abrasion-resistant block in the abrasion-resistant assembly can be directly replaced, and the abrasion-resistant assembly is convenient to use. Therefore, the overall wear resistance can be effectively improved, and the polypropylene woven bag is not prone to being abraded and broken.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging materials, in particular to a high-strength biaxially oriented polypropylene woven bag. Background Art

[0002] Woven bags, also known as snakeskin bags, are a type of plastic bag used for packaging. Their raw materials are generally various chemical plastics such as polyethylene and polypropylene as the main raw materials. They are extruded and stretched into flat yarns, and then woven, braided and made into bags.

[0003] For example, the Chinese utility model patent with the announcement number CN208647527U discloses a four-in-one polypropylene woven bag, including a woven bag, a sealing edge line is provided at the bottom of the front surface of the woven bag, the woven bag includes a waterproof layer, the bottom of the waterproof layer is fixedly connected to a heat-resistant layer, the bottom of the heat-resistant layer is fixedly connected to an anti-corrosion layer, and the bottom of the anti-corrosion layer is fixedly connected to a moisture-proof layer. The utility model solves the problem of poor moisture-proof effect of the existing four-in-one polypropylene woven bag by arranging the woven bag, the sealing edge line, the waterproof layer, the heat-resistant layer, the anti-corrosion layer, the moisture-proof layer and the through hole. Since the existing four-in-one polypropylene woven bag is made of materials such as acrylic ester, when acrylic ester is mixed with a high molecular weight compound, the moisture-proof layer prepared has good moisture-proof function. By arranging the heat-resistant layer, the material of the heat-resistant layer is polypropylene. Due to the heat resistance of polypropylene, the woven bag has good heat resistance and is worthy of promotion.

[0004] However, there are still some problems. Although the material of the heat-resistant layer is polypropylene, the woven bag has good heat resistance due to its heat resistance. However, when in use, the bottom of the polypropylene woven bag is in contact with the ground, and it is easy to cause damage to the bottom of the polypropylene woven bag when dragging the polypropylene woven bag, which is a little inconvenient. Therefore, a high-strength biaxially oriented polypropylene woven bag is proposed to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a high-strength biaxially oriented polypropylene woven bag, which has the advantage of high wear resistance and solves the problem that the bottom of the polypropylene woven bag is easily damaged when dragging the polypropylene woven bag.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-strength biaxially oriented polypropylene woven bag, comprising a woven bag body, a reinforcing edge strip fixed to the outer surface of the woven bag body, two positioning blocks fixed to the front and rear sides of the woven bag body, a traction belt passing through the reinforcing edge strip slidably connected to the interior of the positioning block, and two wear-resistant components fixed to the bottom of the reinforcing edge strip, the wear-resistant components being used to improve the overall wear resistance;

[0007] The wear-resistant assembly comprises a connecting block, two positioning rods, a positioning plate, a stabilizing block, a wear-resistant block and two support assemblies, the bottom of the reinforcing edge is fixed with the connecting block, the inside of the connecting block is fixed with the positioning rods, the outer surface of the positioning rods is in sliding connection with the positioning plate, the bottom of the positioning plate is fixed with the stabilizing block penetrating to the bottom of the connecting block, the bottom of the stabilizing block is fixed with the wear-resistant block, and the support assemblies are arranged in the inside of the connecting block.

[0008] By adopting the technical scheme, the wear-resistant block can effectively improve the overall wear resistance, and the wear-resistant block can be quickly disassembled by pulling, so that the overall durability can be further improved.

[0009] Further, the support assembly comprises a moving rod, a moving block, a supporting block and a return spring, the inside of the connecting block is in sliding connection with the moving rod, the bottom of the moving rod is in rotary connection with the moving block, the moving block penetrates to the outside of the connecting block, the top of the moving rod is fixed with the supporting block, and the bottom of the supporting block is fixed with the return spring fixed with the connecting block.

[0010] By adopting the technical scheme, the return spring has a certain prestress, so that the supporting block can be attached to the positioning plate, so that the downward movement of the positioning plate can be limited, and the positioning plate can be more stable.

[0011] Further, the front surface of the connecting block is provided with a mounting groove matched with the stabilizing block, and the front surface of the connecting block is provided with a positioning groove in sliding connection with the positioning plate and in communication with the mounting groove.

[0012] By adopting the technical scheme, the mounting groove and the positioning groove are arranged, so that the stabilizing block and the positioning plate can be moved from the front surface of the connecting block to the inside of the connecting block.

[0013] Further, the inside of the connecting block is fixed with a sliding block, and the left and right sides of the moving rod are provided with sliding grooves in sliding connection with the sliding block.

[0014] By adopting the technical scheme, the sliding block and the sliding groove are arranged, so that the movement of the moving rod is more stable, and the moving rod cannot rotate.

[0015] Further, the top of the moving block is fixed with a fixed bearing, and the inside of the fixed bearing is fixed with the moving rod.

[0016] By adopting the technical scheme, the fixed bearing is arranged, so that the moving block can rotate.

[0017] Furthermore, the woven bag body includes a woven layer, two reinforcing layers and a moisture-proof barrier layer. The inner and outer sides of the woven layer are fixed to the reinforcing layer, and the inner side of the reinforcing layer is fixed to the moisture-proof barrier layer.

[0018] Furthermore, the braided layer is woven from a biaxially stretched polypropylene material, the reinforcing layer is a polyester high-strength synthetic fiber layer, and the moisture-proof barrier layer is a polyethylene moisture-proof layer.

[0019] By adopting this technical solution, the polyethylene moisture-proof layer can effectively improve the overall moisture-proofness, and the polyester high-strength synthetic fiber layer can effectively improve the strength of the overall structure. The biaxially oriented polypropylene material enables the polypropylene fiber to have excellent tensile properties in both the longitudinal and transverse directions, further enhancing the strength and toughness of the woven bag.

[0020] Furthermore, a moving groove adapted to the moving block is provided at the bottom of the connecting block, the moving block is a rectangular block, and the supporting block is fitted with the positioning plate.

[0021] By adopting this technical solution, the movable groove is set so that the movable block can move to the bottom of the connecting block, and when the movable block is rotated, the movable block and the movable groove will be staggered, thereby making the movable block unable to be reset.

[0022] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0023] 1. When the high-strength biaxially oriented polypropylene woven bag is dragged, the wear-resistant component contacts the ground, causing the wear-resistant component to rub against the ground first, effectively preventing the wear of the polypropylene woven bag. After the wear-resistant component has been used for a long time, the wear-resistant blocks in the wear-resistant component can be directly replaced, thereby effectively improving the overall wear resistance and making the polypropylene woven bag less likely to wear and break.

[0024] 2. The high-strength biaxially oriented polypropylene woven bag has significantly improved its strength and durability by introducing a reinforcement layer, which can meet the high performance requirements of modern logistics and packaging industries for packaging materials. At the same time, the optimized structural design also enhances the moisture resistance and edge wear resistance of the woven bag, improves its service life and safety, and makes the overall bag more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a three-dimensional diagram of the main structure of the woven bag of the utility model;

[0027] Figure 3 For this utility model Figure 1 A magnified view of the structure at center A.

[0028] In the figure: 1. woven bag body; 101. woven layer; 102. reinforcement layer; 103. moisture-proof barrier layer; 2. reinforcement edge strip; 3. positioning block; 4. traction belt; 5. wear-resistant component; 501. connecting block; 502. positioning rod; 503. positioning plate; 504. stabilizing block; 505. wear-resistant block; 506. moving rod; 507. moving block; 508. support block; 509. reset spring; 510. mounting slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1 to 2 In this embodiment, a high-strength biaxially oriented polypropylene woven bag includes a woven bag body 1, which includes a woven layer 101, two reinforcing layers 102 and a moisture-proof barrier layer 103. The inner and outer sides of the woven layer 101 are fixed to the reinforcing layer 102, and the inner side of the inner reinforcing layer 102 is fixed to the moisture-proof barrier layer 103. The woven layer 101 is woven from a biaxially oriented polypropylene material, the reinforcing layer 102 is a polyester high-strength synthetic fiber layer, and the moisture-proof barrier layer 103 is a polyethylene moisture-proof layer. By setting the polyethylene moisture-proof layer, the overall moisture resistance can be effectively improved, and the setting of the polyester high-strength synthetic fiber layer can effectively improve the strength of the overall structure.

[0031] In addition, the biaxially oriented polypropylene material enables the polypropylene fiber to have excellent tensile properties in both the longitudinal and transverse directions, further enhancing the strength and toughness of the woven bag. The outer surface of the woven bag body 1 is fixed with a reinforcing edge strip 2, and two positioning blocks 3 are fixed on the front and rear sides of the woven bag body 1. The internal sliding connection of the positioning block 3 is connected with a traction belt 4 that passes through the reinforcing edge strip 2. The bottom of the reinforcing edge strip 2 is fixed with two wear-resistant components 5, and the wear-resistant components 5 are used to improve the overall wear resistance.

[0032] In general, the reinforcing edge strip 2 is tightly connected to the edge of the woven bag body 1 through hot melt technology, which improves the wear resistance and tear resistance of the edge of the woven bag body 1, effectively prevents edge damage that may occur during transportation and use, and makes the whole more durable.

[0033] See also Figure 3The wear-resistant component 5 in this embodiment includes a connecting block 501, two positioning rods 502, a positioning plate 503, a stabilizing block 504, a wear-resistant block 505 and two supporting components. The bottom of the reinforcing edge strip 2 is fixed to the connecting block 501, the interior of the connecting block 501 is fixed to the positioning rod 502, the outer surface of the positioning rod 502 is slidably connected to the positioning plate 503, and the bottom of the positioning plate 503 is fixed to the stabilizing block 504 that passes through the bottom of the connecting block 501. The front of the connecting block 501 is provided with a mounting groove 510 that is compatible with the stabilizing block 504, and the front of the connecting block 501 is provided with a positioning groove that is slidably connected to the positioning plate 503 and communicates with the mounting groove 510. The mounting groove 510 and the positioning groove are provided so that the stabilizing block 504 and the positioning plate 503 can be moved from the front of the connecting block 501 to the interior of the connecting block 501.

[0034] Furthermore, the bottom of the stabilizing block 504 is fixed to the wear-resistant block 505, and the supporting assembly is arranged inside the connecting block 501. The supporting assembly includes a moving rod 506, a moving block 507, a supporting block 508 and a reset spring 509. The interior of the connecting block 501 is slidingly connected to the moving rod 506, and a sliding block is fixed inside the connecting block 501. The left and right sides of the moving rod 506 are provided with sliding grooves that are slidingly connected to the sliding blocks. The set sliding blocks and sliding grooves make the movement of the moving rod 506 more stable and make the moving rod 506 unable to rotate. The bottom of the moving rod 506 is rotatably connected to the moving block 507, and the top of the moving block 507 is fixed with a fixed bearing. The interior of the fixed bearing is fixed to the moving rod 506, and the moving block 507 can be rotated by the set fixed bearing.

[0035] In addition, the moving block 507 extends to the outside of the connecting block 501, the top of the moving rod 506 is fixed to the support block 508, and the bottom of the support block 508 is fixed to the return spring 509 fixed to the connecting block 501. The set return spring 509 has a certain prestress, so that the support block 508 can fit with the positioning plate 503, thereby limiting the downward movement of the positioning plate 503, making the positioning plate 503 more stable. A moving groove adapted to the moving block 507 is provided at the bottom of the connecting block 501. The moving block 507 is a rectangular block, and the support block 508 fits with the positioning plate 503. The set moving groove allows the moving block 507 to move to the bottom of the connecting block 501, and when the moving block 507 is rotated, the moving block 507 will be staggered with the moving groove, thereby making the moving block 507 unable to reset.

[0036] In general, the wear-resistant block 505 can be provided to effectively improve the overall wear resistance, and the wear-resistant block 505 can be quickly disassembled by pulling the wear-resistant block 505, thereby further improving the overall durability.

[0037] The working principle of the above embodiment is:

[0038] When the woven bag body 1 is placed on the ground, the wear-resistant block 505 will contact the ground, so that when the woven bag body 1 is dragged, the wear-resistant block 505 will rub against the ground, thereby effectively protecting the woven bag body 1. When the wear-resistant block 505 needs to be replaced, the wear-resistant block 505 is pulled downward to make the stabilizing block 504, the positioning plate 503, the supporting block 508, the moving block 507 and the moving rod 506 move downward, and the return spring 509 is squeezed, so that when the positioning plate 503 moves downward, it loses connection with the positioning rod 502. At this time, the wear-resistant block 505 can be pulled toward the front to separate the wear-resistant block 505 from the connecting block 501, so that the wear-resistant block 505 can be easily replaced. When the wear-resistant block 505 needs to be installed, the moving block 507 needs to be pulled downward to make the support block 508 move downward. When the moving block 507 moves to the bottom of the connecting block 501, the moving block 507 can be rotated so that the moving block 507 fits against the bottom wall of the connecting block 501, thereby making it impossible for the support block 508 to be reset due to the elastic force of the reset spring 509. Therefore, when the wear-resistant block 505 is installed, the support block 508 will not restrict the movement of the positioning plate 503. When the positioning plate 503 is plugged into the positioning rod 502, the moving block 507 can be reset, thereby making the support block 508 contact with the positioning plate 503, limiting the positioning plate 503 from moving downward. The overall structure is simple, which can effectively improve the overall wear resistance and make the overall structure more practical.

Claims

1. A high-strength biaxially oriented polypropylene woven bag, comprising a woven bag body (1), characterized in that: The outer surface of the woven bag body (1) is fixed with a reinforcing edge strip (2), and two positioning blocks (3) are fixed on both the front and rear sides of the woven bag body (1). The interior of the positioning block (3) is slidably connected with a traction belt (4) that passes through the reinforcing edge strip (2). The bottom of the reinforcing edge strip (2) is fixed with two wear-resistant components (5), and the wear-resistant components (5) are used to improve the overall wear resistance. The wear-resistant assembly (5) includes a connecting block (501), two positioning rods (502), a positioning plate (503), a stabilizing block (504), a wear-resistant block (505) and two supporting assemblies, the bottom of the reinforcing edge strip (2) is fixed to the connecting block (501), the interior of the connecting block (501) is fixed to the positioning rod (502), the outer surface of the positioning rod (502) is slidably connected to the positioning plate (503), the bottom of the positioning plate (503) is fixed to the stabilizing block (504) extending through the bottom of the connecting block (501), the bottom of the stabilizing block (504) is fixed to the wear-resistant block (505), and the supporting assembly is arranged inside the connecting block (501).

2. A high-strength biaxially oriented polypropylene woven bag according to claim 1, characterized in that: The support assembly includes a moving rod (506), a moving block (507), a supporting block (508) and a return spring (509); the interior of the connecting block (501) is slidably connected to the moving rod (506); the bottom of the moving rod (506) is rotatably connected to the moving block (507); the moving block (507) extends to the outside of the connecting block (501); the top of the moving rod (506) is fixed to the supporting block (508); and the bottom of the supporting block (508) is fixed to the return spring (509) fixed to the connecting block (501).

3. The high-strength biaxially oriented polypropylene woven bag according to claim 1, characterized in that: The front of the connecting block (501) is provided with a mounting groove (510) adapted to the stabilizing block (504), and the front of the connecting block (501) is provided with a positioning groove slidably connected to the positioning plate (503) and communicating with the mounting groove (510).

4. The high-strength biaxially oriented polypropylene woven bag according to claim 2, characterized in that: A sliding block is fixed inside the connecting block (501), and sliding grooves slidably connected to the sliding block are provided on both the left and right sides of the moving rod (506).

5. The high-strength biaxially oriented polypropylene woven bag according to claim 2, characterized in that: A fixed bearing is fixed to the top of the moving block (507), and the interior of the fixed bearing is fixed to the moving rod (506).

6. The high-strength biaxially oriented polypropylene woven bag according to claim 1, characterized in that: The woven bag body (1) comprises a woven layer (101), two reinforcing layers (102) and a moisture-proof barrier layer (103); the inner and outer sides of the woven layer (101) are fixed to the reinforcing layer (102); and the inner side of the reinforcing layer (102) is fixed to the moisture-proof barrier layer (103).

7. The high-strength biaxially oriented polypropylene woven bag according to claim 6, characterized in that: The braided layer (101) is woven from a biaxially stretched polypropylene material, the reinforcement layer (102) is a polyester high-strength synthetic fiber layer, and the moisture-proof barrier layer (103) is a polyethylene moisture-proof layer.

8. The high-strength biaxially oriented polypropylene woven bag according to claim 2, characterized in that: The bottom of the connecting block (501) is provided with a moving groove adapted to the moving block (507), the moving block (507) is a rectangular block, and the supporting block (508) is fitted with the positioning plate (503).

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