Novel high-capacity polypropylene packaging bag facilitating loading and unloading

Abstract

The utility model relates to the technical field of polypropylene packaging bags, and discloses a novel high-capacity polypropylene packaging bag convenient for loading and unloading, the uppermost end of the polypropylene packaging bag is provided with a loading port, a nylon round rope is arranged in a side seam of the loading port, four lifting lugs are arranged outside the joint of the bottom side of the loading port and a cylinder body, and the bottom side of the loading port is connected with the cylinder body. A barrel body is arranged at the middle section position of the polypropylene packaging bag, a conical discharging structure is arranged at the lower end of the barrel body, a tying nylon rope is embedded in the position 230MM away from the conical discharging structure in an abutted seam mode, and a discharging opening is formed in the lowermost end of the conical discharging structure. According to the novel large-capacity polypropylene packaging bag convenient to load and unload, self bundling and sealing or bundling and sealing with an external pipeline are carried out, material dust is prevented from overflowing, a buffer type effective space is designed, the diameter of the upper side is 1200 MM, the diameter of the lower side is 1025 MM, material adhesion is prevented, unsmooth unloading is achieved, the problem that a metal container is airtight and not ventilated is solved, and the packaging bag is suitable for large-scale popularization and application. The bag with the specification is used for food-grade packaging, has the safety coefficient of 8: 1, and is a super-strong packaging product.

Description

Technical Field

[0001] The utility model relates to the technical field of polypropylene packaging bags, in particular to a new type of large-capacity polypropylene packaging bag that is convenient for loading and unloading materials. Background Art

[0002] Polypropylene is a thermoplastic resin made by polymerizing propylene. It is often called the "steel" material of the plastics industry. According to international standards, polypropylene (PP) is divided into homopolymer polypropylene, random copolymer polypropylene and block copolymer polypropylene. Copolymer PP materials have a lower heat deformation temperature (100°C), low transparency, low gloss, and low rigidity, but have stronger impact strength. The impact strength of PP increases with the increase of ethylene content. The Vicat softening temperature of PP is 150°C. Due to its high crystallinity, this material has good surface stiffness and scratch resistance. PP does not have the problem of environmental stress cracking.

[0003] At present, the materials of food-grade plastic packaging bags are mainly divided into polypropylene, nylon, polyester, etc. Among them, polypropylene is one of the most commonly used materials for food-grade plastic bags, because polypropylene is a thermoplastic polymer with the characteristics of light weight, high strength, excellent heat resistance, corrosion resistance and non-toxicity. Due to its advantages such as low cost, easy processing and recycling, it is widely used in the production of various types of plastic packaging bags. Food-grade plastic packaging bags generally go through the process of raw material preparation, yarn preparation, yarn coating, weaving, printing processing, cutting and sewing, finished product inspection and packaging, and finished product delivery. Each step requires strict control of process requirements and operation details to ensure that the quality and performance of the packaging bags meet the standards.

[0004] However, the current packaging bags cannot prevent the problem of material sticking and poor unloading, and we have not overcome the problem of metal containers being airtight and not ventilated. In order to solve this technical problem, there is an urgent need for a new large-capacity polypropylene packaging bag that is easy to load and unload to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a large-capacity new polypropylene packaging bag that is convenient for loading and unloading materials. To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A new type of large-capacity polypropylene packaging bag which is convenient for loading and unloading. A feeding port is provided at the top of the polypropylene packaging bag, and a nylon round rope is arranged in the side seam of the feeding port. Four lifting ears are arranged outside the junction between the bottom side of the feeding port and the barrel body. A barrel body is arranged in the middle section of the polypropylene packaging bag, and a conical unloading structure is arranged at the lower end of the barrel body, and a nylon rope is embedded in the seam 230MM away from the conical unloading structure. A unloading port is provided at the bottom of the conical unloading structure.

[0007] Preferably, the feed port is made of 130g / ㎡ lightweight polyamide fabric, and the nylon round rope has a diameter of 5MM, which is used for bundling and sealing itself or bundling and sealing with external pipelines to prevent material dust from spilling out.

[0008] Preferably, the upper diameter of the feeding port is 1200MM, and the lower diameter is 1025MM.

[0009] Preferably, the hanging ears are made of 50MM wide PE webbing.

[0010] Preferably, the barrel body is made of 320g / ㎡ thick polypropylene fabric, and the barrel body diameter is 1025MM.

[0011] Preferably, the discharge port adopts a conical necking design and is made of 320g / ㎡ thick polypropylene fabric.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model is a new type of large-capacity polypropylene packaging bag which is convenient for loading and unloading materials, can be bundled and sealed by itself or bundled and sealed with external pipelines to prevent material dust from overflowing, and is designed with a buffer-type effective space with an upper diameter of 1200MM and a lower diameter of 1025MM to prevent material sticking and poor unloading, thus overcoming the problem of metal containers being sealed and not ventilated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of a large-capacity new type of polypropylene packaging bag that is convenient for loading and unloading materials;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model's new large-capacity polypropylene packaging bag that is easy to load and unload;

[0016] In the figure: 1. Feeding port; 2. Nylon round rope; 3. Lifting lug; 4. Barrel body; 5. Conical unloading structure; 6. Nylon rope with tie; 7. Unloading port. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The different types of section lines in the drawings in the embodiments of the utility model are not marked according to the national standard, nor are there any requirements for the materials of the components, but are used to distinguish the cross-sectional views of the components in the drawings.

[0018] Please refer to Figure 1-2 , a new type of large-capacity polypropylene packaging bag that is convenient for loading and unloading materials. The uppermost end of the polypropylene packaging bag is provided with a feeding port 1, and a nylon round rope 2 is threaded inside the side seam of the feeding port 1. Four lifting lugs 3 are provided outside the junction of the bottom side of the feeding port 1 and the barrel body. A barrel body 4 is arranged at the middle section of the polypropylene packaging bag, and a conical discharging structure 5 is provided at the lower end of the barrel body 4. A tying nylon rope 6 is embedded in the seam at a distance of 230 MM from the conical discharging structure 5. The lowermost end of the conical discharging structure 5 is provided with a discharging port 7.

[0019] Among them, the feeding port 1 is made of 130 g / ㎡ lightweight polyamide fabric by sewing. The nylon round rope 2 has a diameter of 5 MM and is used for self-tying and sealing or tying and sealing with external pipelines to prevent material dust from overflowing.

[0020] Among them, the upper side of the feeding port 1 has a diameter of 1200 MM and the lower side has a diameter of 1025 MM.

[0021] Among them, the lifting lug 3 is made of a 50 MM wide PE material webbing.

[0022] Among them, the barrel body 4 is made of 320 g / ㎡ thick polypropylene fabric by sewing, and the diameter of the barrel body reaches 1025 MM.

[0023] Among them, the discharging port 7 adopts a conical necking design, and the material is 320 g / ㎡ thick polypropylene fabric.

[0024] It should be noted that the feeding port 1 is made of 130 g / ㎡ lightweight polyamide (PA) fabric by sewing. During use, it can be applied to occasions with higher temperatures than PP material, and has high tensile strength and rigidity, making it more durable; a nylon round rope 2 (PA, diameter 5 MM) is threaded inside the side seam of the base cloth opening for self-tying and sealing or tying and sealing with external pipelines to prevent material dust from overflowing.

[0025] <Compared with PA (polyamide) and PP (polypropylene), if the application needs to work at a higher temperature, PA may be more suitable because PA materials usually have higher heat resistance and stability. If the application requires the pipeline to have higher tensile strength and rigidity, PA may be more appropriate because PA materials usually have higher mechanical properties.>

[0026] According to the working conditions requirements, material characteristics and actual operation, the feeding port 1 is designed with a buffer effective space, with an upper side diameter of 1200 MM and a lower side diameter of 1025 MM, to prevent material sticking and unsmooth discharging, and to overcome the problem of airtightness of metal containers;

[0027] The lifting lug 3 is made of 50MM wide PE material webbing (72G / M), which is strong and wear-resistant. The four sets of lifting lug bags are symmetrically arranged on the side walls and bottom, with large load-bearing capacity and convenient hanging, which reduces the occupation of limited ground space on site; the original metal tank body needs to be supported, which is costly and occupies a large area of ​​land. The current design of the lifting lug is suspended and fixed, which is very economical and fully utilizes the factory space;

[0028] The barrel body 4 is made of 320g / ㎡ thick polypropylene fabric, and the diameter of the barrel body 4 is 1025MM, with large capacity;

[0029] The conical unloading structure 5 draws on the smooth unloading feature of the barrel body 4. The unloading port adopts a conical shrinking design. The material is 320g / ㎡ thick polypropylene fabric, and a nylon rope 6 (PA, diameter 20MM) is embedded in the seam 230MM away from the mouth to assist unloading, making the operation safe and convenient. The seam between the cone and the barrel base cloth is treated with a 20MM wide seam lining to ensure firmness.

[0030] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0031] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A new type of large-capacity polypropylene packaging bag that is easy to load and unload. Features: The polypropylene packaging bag has a loading port (1) at the top, and a nylon round rope (2) is arranged in the side seam of the loading port (1). Four hanging ears (3) are arranged outside the junction between the bottom side of the loading port (1) and the barrel. A barrel (4) is arranged in the middle of the polypropylene packaging bag, and a conical discharge structure (5) is arranged at the lower end of the barrel (4). A nylon rope (6) is inserted and tied at a seam 230 mm away from the conical discharge structure (5). A loading port (7) is arranged at the bottom of the conical discharge structure (5).

2. A new type of large-capacity polypropylene packaging bag that is easy to load and unload according to claim 1, Features: The feed port (1) is made of 130g / ㎡ lightweight polyamide fabric, and the nylon round rope (2) has a diameter of 5MM and is used for bundling and sealing itself or bundling and sealing with external pipelines to prevent material dust from spilling out.

3. A new type of large-capacity polypropylene packaging bag that is easy to load and unload according to claim 1, Features: The upper diameter of the feeding port (1) is 1200MM, and the lower diameter is 1025MM.

4. A new type of large-capacity polypropylene packaging bag that is easy to load and unload according to claim 1, Features: The hanging lug (3) is made of a 50mm wide PE webbing.

5. A new type of large-capacity polypropylene packaging bag that is easy to load and unload according to claim 1, Features: The barrel body (4) is made of 320g / ㎡ thick polypropylene fabric, and the barrel body diameter reaches 1025MM.

6. A new type of large-capacity polypropylene packaging bag that is easy to load and unload according to claim 1, Features: The discharge port (7) adopts a conical necking design and is made of 320g / ㎡ thick polypropylene fabric.

Images