PE film stretching device

Abstract

The utility model discloses a PE (Poly Ethylene) film stretching device, which relates to the technical field of PE film production, and comprises a stretching cabinet, a plurality of groups of stretching rollers are rotatably arranged in the stretching cabinet, when a PE film is heated and stretched, a transversely arranged flaring cover can quickly collect gas generated when the PE film is heated, the gas is prevented from overflowing, and when the gas enters a confluence box, the confluence box is closed, so that the stretching rollers can stretch the PE film. A dust screen can filter gas entering a collecting pipe, dust is prevented from entering a filter box, the filtered dust falls into a collecting drawer, follow-up collection and unified treatment are facilitated, an activated carbon plate, a carbonized fiber plate and a molecular sieve arranged in the filter box can fully adsorb and purify gas such as ethylene and formaldehyde step by step, and the purification efficiency is improved. And the supporting plate is rotationally fixed to one side of the stretching cabinet, and when the stretching cabinet is not used, the filtering box is taken down and then the supporting plate can be rotated downwards, so that the size of the device is further reduced, and carrying and storage are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of PE film production, in particular to a PE film stretching device. Background Art

[0002] PE film, the full name of which is PE protective film, is the simplest macromolecular organic compound and the most widely used macromolecular material in the world today. PE protective film uses special polyethylene (PE) plastic film as the base material. It is divided into high-density polyethylene protective film, medium-density polyethylene and low-density polyethylene according to different densities. It is mainly used in the packaging industry.

[0003] The Chinese patent authorization announcement number is CN215473063U, and the name is a rapid stretching device for producing PE film, which includes a bottom plate, two sets of vertical plates, a first resistance roller, a first rotating shaft, a second resistance roller, a second rotating shaft, two sets of sliders, two sets of first springs, two sets of gears, fan-shaped teeth, a third rotating shaft, a second spring, a fixed plate, two sets of fourth rotating shafts, two sets of conveying rollers, a fifth rotating shaft and a winding roller. The two sets of vertical plates are respectively installed on the front side and the rear side of the top of the bottom plate, the first resistance roller is rotatably installed on the right part of the two sets of vertical plates through the first rotating shaft, and the second resistance roller is rotatably installed on the two sets of sliders through the second rotating shaft. The lower side of the right part of the two sets of vertical plates is provided with a slide groove, and the two sets of sliders slide in the two sets of slide grooves. A power device is provided on the rear side vertical plate, and the power device is connected with the fifth rotating shaft. A heating mechanism is provided on the bottom plate, which can evenly stretch the PE film, thereby improving its stretching effect;

[0004] The disadvantage of the above-mentioned prior art solution is that although the above-mentioned solution can evenly stretch the PE film, the PE film will produce ethylene, a small amount of formaldehyde and other gases when heated, which will be directly discharged into the external environment, not only polluting the working environment but also causing certain harm to the health of the workers. Utility Model Content

[0005] The purpose of the utility model is to provide a PE film stretching device to solve the technical problems mentioned in the above background technology.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A PE film stretching device, comprising a stretching cabinet, wherein a plurality of groups of stretching rollers are rotatably arranged inside the stretching cabinet;

[0008] A junction box is arranged on the top of the stretching cabinet, negative pressure tubes are arranged on both sides of the junction box, a junction tube is arranged on the back side of the junction box, a dust screen is arranged on the side of the junction box close to the junction tube, a collecting drawer is slidably arranged on the bottom end of the junction box, a support plate is arranged on one side of the stretching cabinet, a filter box connected to the junction tube is arranged on the top of the support plate, an activated carbon plate, a carbon fiber plate and a molecular sieve are symmetrically arranged inside the filter box, the activated carbon plate is located on both sides of the junction tube, and the carbon fiber plate is located between the activated carbon plate and the molecular sieve, and exhaust fans are symmetrically arranged on both sides of the filter box.

[0009] As a further solution of the utility model: the collecting drawer is located below the negative pressure pipe, exhaust holes matching the exhaust fan are opened on both sides of the filter box, and dust covers matching the exhaust holes are arranged on both sides of the filter box.

[0010] As a further solution of the utility model: an electric rod is arranged in the center of the top wall of the stretching cabinet, and a heating structure is connected to the bottom end of the electric rod.

[0011] As a further solution of the utility model: the top wall of the stretching cabinet is symmetrically provided with an expansion mouth communicating with the negative pressure pipe, and the expansion mouth is transversely arranged above the stretching roller.

[0012] As a further solution of the utility model: a storage groove matching the support plate is opened on one side of the stretching cabinet, and the storage groove is located below the support plate.

[0013] As a further solution of the utility model: direction-changing rollers are symmetrically arranged at both ends of the stretching cabinet, and a support frame is arranged at the bottom of the stretching cabinet.

[0014] Beneficial effects of the utility model:

[0015] When the utility model device heats and stretches the PE film, the expansion mask arranged laterally can quickly collect the gas generated when the PE film is heated to prevent the gas from overflowing; when the gas enters the junction box, the dustproof net can filter the gas entering the junction pipe to prevent dust from entering the filter box; the filtered dust falls into the collection drawer, which is convenient for subsequent collection and unified treatment; the activated carbon plate, carbon fiber plate and molecular sieve arranged in the filter box can fully adsorb and purify gases such as ethylene and formaldehyde step by step to ensure that the exhausted gas will not cause harm to the environment and staff; the support plate is rotatably fixed on one side of the stretching cabinet; when not in use, the filter box can be removed and the support plate can be rotated downward, thereby further reducing the size of the device for convenient transportation and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional schematic diagram of the whole device in the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the filter box in the utility model;

[0019] Figure 3 It is a schematic diagram of the overall structure of the device in the utility model;

[0020] Figure 4 It is a schematic diagram of the filter box structure in the utility model.

[0021] In the figure: 1. stretching cabinet; 2. stretching roller; 3. electric pole; 4. heating structure; 5. junction box; 6. negative pressure pipe; 7. junction pipe; 8. expansion cover; 9. dust screen; 10. collection drawer; 11. support plate; 12. filter box; 13. activated carbon board; 14. carbonized fiber board; 15. molecular sieve; 16. exhaust fan; 17. storage tank; 18. change-of-direction roller; 19. support frame. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] like Figure 1-4 As shown, a PE film stretching device comprises a stretching cabinet 1, wherein a plurality of stretching rollers 2 are rotatably arranged inside the stretching cabinet 1, an electric rod 3 is arranged at the center of the top wall of the stretching cabinet 1, and a heating structure 4 is connected to the bottom end of the electric rod 3. The stretching cabinet 1 is the main structure of the device, and the stretching of the PE film is achieved through the plurality of stretching rollers 2 and the heating structure 4 arranged inside the stretching cabinet 1. The electric rod 3 can adjust the height of the heating structure 4, thereby controlling the distance between the heating structure 4 and the PE film, so as to facilitate the regulation of the heating temperature of the PE film.

[0024] A junction box 5 is arranged on the top of the stretching cabinet 1, negative pressure pipes 6 are arranged on both sides of the junction box 5, a junction tube 7 is arranged on the back of the junction box 5, a dustproof net 9 is arranged on the side of the junction box 5 close to the junction tube 7, a collecting drawer 10 is slidably arranged at the bottom end of the junction box 5, and the collecting drawer 10 is located below the negative pressure pipe 6, a support plate 11 is arranged on one side of the stretching cabinet 1, a filter box 12 connected to the junction tube 7 is arranged on the top of the support plate 11, and an activated carbon plate 13, a carbon fiber plate 14 and a molecular sieve are symmetrically arranged inside the filter box 12. The filter box 12 is provided with an activated carbon plate 13 and a molecular sieve 15, an activated carbon plate 13 is located on both sides of the manifold 7, and a carbon fiber plate 14 is located between the activated carbon plate 13 and the molecular sieve 15. Exhaust fans 16 are symmetrically arranged on both sides of the filter box 12, exhaust holes matching the exhaust fans 16 are opened on both sides of the filter box 12, and dust covers matching the exhaust holes are arranged on both sides of the filter box 12. The top wall of the stretching cabinet 1 is symmetrically provided with an expansion mask 8 communicating with the negative pressure pipe 6, and the expansion mask 8 is transversely arranged above the stretching roller 2. When the device heats and stretches the PE film, the expansion mask 8 is arranged The exhaust fan 16 is arranged to exhaust the air inside the filter box 12 to the outside, creating a negative pressure environment. Since the filter box 12 is connected to the junction box 5 and the negative pressure pipe 6 through the junction pipe 7, a negative pressure is generated in the negative pressure pipe 6. The gas inside the stretching cabinet 1 can be sucked into the filter box 12 through the expansion mask 8. The expansion mask 8 arranged horizontally above the stretching roller 2 can quickly collect the gas generated when the PE film is heated to prevent the gas from overflowing. When the gas enters the junction box 5, the dustproof net 9 can filter the gas entering the junction pipe 7, thereby To prevent dust from entering the filter box 12, the filtered dust falls into the collecting drawer 10. The activated carbon plate 13, carbon fiber plate 14 and molecular sieve 15 arranged in the filter box 12 can fully adsorb and purify gases such as ethylene and formaldehyde step by step, ensuring that the exhausted gas will not cause harm to the environment and workers. The support plate 11 is rotatably fixed to one side of the stretching cabinet 1. When not in use, the filter box 12 can be removed and the support plate 11 can be rotated downward, thereby further reducing the size of the device and facilitating transportation and storage.

[0025] In this embodiment, specifically, a storage groove 17 matching the support plate 11 is opened on one side of the stretching cabinet 1 . The storage groove 17 is located below the support plate 11 . The storage groove 17 facilitates storage of the support plate 11 .

[0026] In this embodiment, specifically, direction-changing rollers 18 are symmetrically arranged at both ends of the stretching cabinet 1, and a support frame 19 is arranged at the bottom of the stretching cabinet 1. The direction-changing rollers 18 can support the PE film, ensuring that the PE film is not easily rubbed against the feed port and the discharge port when entering and exiting the device, thereby improving the quality of the PE film.

[0027] Working principle of the utility model: when the device is in use, the heating structure 4 heats the PE film, the stretching roller 2 realizes the stretching of the PE film, the gas inside the stretching cabinet 1 can be sucked into the filter box 12 through the expansion mask 8, the dustproof net 9 can filter the gas entering the manifold 7, so as to prevent dust from entering the filter box 12, and the filtered dust falls into the collecting drawer 10. The activated carbon plate 13, carbon fiber plate 14 and molecular sieve 15 arranged in the filter box 12 can fully adsorb and purify gases such as ethylene, formaldehyde and benzene step by step, ensuring that the discharged gas will not cause harm to the environment and staff.

[0028] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A PE film stretching device, comprising a stretching cabinet (1), wherein a plurality of groups of stretching rollers (2) are rotatably arranged inside the stretching cabinet (1); characterized in that: A junction box (5) is arranged on the top of the stretching cabinet (1), negative pressure tubes (6) are arranged on both sides of the junction box (5), a junction tube (7) is arranged on the back of the junction box (5), a dust screen (9) is arranged on the side of the junction box (5) close to the junction tube (7), a collecting drawer (10) is slidably arranged at the bottom of the junction box (5), a support plate (11) is arranged on one side of the stretching cabinet (1), a filter box (12) connected to the junction tube (7) is arranged on the top of the support plate (11), an activated carbon plate (13), a carbon fiber plate (14) and a molecular sieve (15) are symmetrically arranged inside the filter box (12), the activated carbon plate (13) is located on both sides of the junction tube (7), and the carbon fiber plate (14) is located between the activated carbon plate (13) and the molecular sieve (15), and exhaust fans (16) are symmetrically arranged on both sides of the filter box (12).

2. A PE film stretching device according to claim 1, characterized in that: The collecting drawer (10) is located below the negative pressure pipe (6), exhaust holes matching the exhaust fan (16) are provided on both sides of the filter box (12), and dust covers matching the exhaust holes are provided on both sides of the filter box (12).

3. A PE film stretching device according to claim 1, characterized in that: An electric rod (3) is arranged at the center of the top wall of the stretching cabinet (1), and a heating structure (4) is connected to the bottom end of the electric rod (3).

4. A PE film stretching device according to claim 1, characterized in that: The top wall of the stretching cabinet (1) is symmetrically provided with an expansion mouth (8) which is in communication with the negative pressure pipe (6), and the expansion mouth (8) is transversely arranged above the stretching roller (2).

5. A PE film stretching device according to claim 1, characterized in that: A storage groove (17) matching the support plate (11) is provided on one side of the stretching cabinet (1), and the storage groove (17) is located below the support plate (11).

6. A PE film stretching device according to claim 1, characterized in that: Direction-changing rollers (18) are symmetrically arranged at both ends of the stretching cabinet (1), and a support frame (19) is arranged at the bottom of the stretching cabinet (1).

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