Ventilation device for plastic product production

By introducing a multi-layer filtration system and dust collection box into the ventilation device used in plastic product manufacturing, the problems of dust pollution and complex equipment maintenance have been solved, air purification and equipment maintenance have been simplified, and production efficiency has been improved.

CN224195558UActive Publication Date: 2026-05-05NINGBO HEMEI RESIDENTIAL FACILITIES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO HEMEI RESIDENTIAL FACILITIES
Filing Date
2024-12-27
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing ventilation systems used in plastic product manufacturing lack filtration and purification functions, resulting in dust pollution of the working environment. Furthermore, equipment maintenance is complex, time-consuming, and labor-intensive, impacting production efficiency.

Method used

A multi-layer filtration system was designed, including a dust filter, an activated carbon box, multiple fans, and multiple layers of filter material (such as HEPA filter paper) to purify the air and simplify the cleaning process through a dust collection box and dust brush.

Benefits of technology

It effectively filters dust, purifies the air, reduces environmental pollution, simplifies equipment maintenance, and improves production efficiency and equipment cleanliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ventilation in plastic production, and discloses a ventilation device for plastic product production, which is characterized in that a dust collection box is fixedly mounted on the bottom surface of a first chamber, a dust screen is fixedly mounted on the front surface of the first chamber, a sliding chute is fixedly mounted on the inner side of the first chamber, a sliding block is movably mounted on the outer side of the sliding chute, and the sliding block is movably mounted on the outer side of the sliding chute; a dust brush is fixedly installed on the side face of the sliding block, a first ventilation pipeline is fixedly installed on the rear side of the first cavity, and a second cavity is fixedly installed on the rear side of the first ventilation pipeline. According to the ventilation device for plastic product production, after equipment is started, waste gas generated by production firstly reaches the first cavity, the dustproof net can block dust and foreign matter with large diameters, faults caused by the fact that the fan winds the foreign matter are prevented, and due to the fact that the space in the first cavity is small, dust possibly accumulated on the inner side of the dustproof net is inconvenient to clean; and the additionally arranged dust brush can be regularly started after being used for a long time, so that dust on the inner side of the dustproof net can be cleaned.
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Description

Technical Field

[0001] This utility model relates to the field of ventilation technology in plastic production, specifically a ventilation device for the production of plastic products. Background Technology

[0002] Plastic products are a general term for daily necessities and industrial products made primarily from plastics. They include all products manufactured using processes such as injection molding and thermoforming. Plastics are a type of synthetic polymer material with plasticity. Ventilation devices are required during the production of plastic products.

[0003] Existing ventilation systems used in plastic product manufacturing lack filtration and purification functions. Dust generated during production is discharged outside the equipment along with the air without being filtered or purified, polluting the working environment and endangering the health of workers. Furthermore, when existing equipment malfunctions and needs repair, disassembly is complex, operations are cumbersome, time-consuming, and labor-intensive, affecting production progress and reducing work efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a ventilation device for the production of plastic products to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a ventilation device for plastic product manufacturing, wherein a dust collection box is fixedly installed on the bottom surface of the first chamber, a dustproof net is fixedly installed on the front surface of the first chamber, a sliding groove is fixedly installed on the inner side of the first chamber, a slider is movably installed on the outer side of the sliding groove, a dust brush is fixedly installed on the side of the slider, a ventilation duct one is fixedly installed on the rear side of the first chamber, a second chamber is fixedly installed on the rear side of the first ventilation duct, a second ventilation duct two is fixedly installed on the rear side of the second chamber, a third chamber is fixedly installed on the rear side of the second ventilation duct, an exhaust duct is fixedly installed on the rear side of the third chamber, a fan is fixedly installed on the rear inner wall of the first chamber, and the second chamber... Activated carbon box fixing slots are fixedly installed on the left and right sides of the inner side of the chamber. Activated carbon boxes are installed in the fixing slots, and activated carbon box covers are installed on the top side of the activated carbon boxes. A second chamber cover is installed on the top surface of the second chamber. Filter material fixing slots are fixedly installed on the inner side of the third chamber. There are eight filter material fixing slots in total, arranged in groups of two. Filter material is movably installed inside each group of filter material fixing slots. Activated carbon filter cotton is installed inside the third chamber. Glass fiber filter cotton is installed behind the activated carbon filter cotton. Non-woven fabric filter cotton is installed behind the glass fiber filter cotton. HEPA filter paper is installed behind the non-woven fabric filter cotton. A third chamber cover is installed on the top side of the third chamber.

[0008] Preferably, the dust collection box includes an outer wall, and a pull-out dust collection box is provided on the inner side of the outer wall. A dust collection box cover is fixedly installed on the left side of the pull-out dust collection box, and a handle is fixedly installed on the left side of the dust collection box cover.

[0009] Preferably, there are three fans, which are respectively installed on the rear inner walls of the first chamber, the second chamber, and the third chamber.

[0010] Preferably, the rear inner walls of the first chamber, the second chamber, and the third chamber are provided with through holes that connect to ventilation duct one, ventilation duct two, and exhaust duct.

[0011] Compared with the prior art, this utility model provides a ventilation device for the production of plastic products, which has the following beneficial effects:

[0012] 1. The ventilation device for plastic product manufacturing firstly, after the equipment is started, the exhaust gas generated during production reaches the first chamber. The dust screen can block larger diameter dust and foreign objects to prevent the fan from getting entangled in foreign objects and causing malfunctions. Since the space inside the first chamber is small, it is not convenient to clean the dust that may accumulate on the inside of the dust screen. The added dust brush can be turned on periodically after long-term use to clean the dust inside the dust screen. Only the dust inside the dust collection box needs to be cleaned periodically to keep the inside of the dust screen clean and prevent the fan blades from sucking in dust and causing malfunctions during operation. This effectively improves the cleanliness of the equipment. After passing through the first chamber, the exhaust gas reaches the second chamber through the ventilation duct. The activated carbon particles inside the second chamber will first perform a simple filtration of the exhaust gas and absorb the odor generated during the production of plastic products. The through holes on the activated carbon box can help the air circulation inside the equipment.

[0013] 2. In this ventilation device for plastic product manufacturing, after passing through the activated carbon box, the exhaust gas is drawn into the third chamber by the fan through the second ventilation duct. The multiple fans can more effectively extract and filter air, significantly improving the equipment's air purification efficiency. The multi-layered filter material inside the third chamber provides more detailed filtration of the exhaust gas. Among them, HEPA filter paper is a filter with excellent filtration effect, capable of purifying particles larger than 0.3 microns with a removal efficiency of 99.7%, and has a good purification effect on PM2.5. The different filter materials arranged layer by layer work together to achieve better filtration results. After passing through multiple layers of filtration, the exhaust gas meets the emission standards and is finally discharged into the atmosphere through the exhaust duct, reducing the impact on the atmosphere. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the left-side structure of this utility model;

[0017] Figure 4 This is a schematic cross-sectional view of the third chamber structure of this utility model;

[0018] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0019] In the diagram: 1. First chamber; 101. Slide groove; 102. Slider; 103. Dust brush; 2. Dust collection box; 201. Outer wall of dust collection box; 202. Pull-out dust collection box; 203. Dust collection box cover; 204. Handle; 3. Dustproof net; 4. Ventilation duct one; 5. Second chamber; 501. Activated carbon box fixing groove; 502. Activated carbon box cover; 503. Activated carbon box; 504. Second chamber cover; 6. Ventilation duct two; 7. Third chamber; 701. Filter material fixing groove; 702. HEPA filter paper; 703. Non-woven filter cotton; 704. Glass fiber filter cotton; 705. Activated carbon filter cotton; 706. Third chamber cover; 8. Exhaust duct; 9. Fan. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-5 As shown, this utility model provides a technical solution: a ventilation device for plastic product manufacturing. A dust collection box 2 is fixedly installed on the bottom surface of a first chamber 1, a dustproof net 3 is fixedly installed on the front surface of the first chamber 1, a sliding groove 101 is fixedly installed on the inner side of the first chamber 1, a slider 102 is movably installed on the outer side of the sliding groove 101, a dust brush 103 is fixedly installed on the side of the slider 102, a ventilation duct 4 is fixedly installed on the rear side of the first chamber 1, a second chamber 5 is fixedly installed on the rear side of the first ventilation duct 4, a second ventilation duct 6 is fixedly installed on the rear side of the second chamber 5, a third chamber 7 is fixedly installed on the rear side of the second ventilation duct 6, an exhaust duct 8 is fixedly installed on the rear side of the third chamber 7, a fan 9 is fixedly installed on the inner rear wall of the first chamber 1, and activated carbon is fixedly installed on the left and right sides of the inner side of the second chamber 5. The activated carbon box is fixed in a slot 501, and an activated carbon box 503 is installed inside the slot 501. An activated carbon box cover plate 502 is installed on the top side of the activated carbon box 503. A second chamber cover plate 504 is installed on the top surface of the second chamber 5. A filter material fixing slot 701 is fixedly installed inside the third chamber 7. There are eight filter material fixing slots 701 in total, arranged in groups of two. Filter material is movably installed inside each group of filter material fixing slots 701. Activated carbon filter cotton 705 is installed inside the third chamber 7. Glass fiber filter cotton 704 is installed behind the activated carbon filter cotton 705. Non-woven fabric filter cotton 703 is installed behind the glass fiber filter cotton 704. HEPA filter paper 702 is installed behind the non-woven fabric filter cotton 703. A third chamber cover plate 706 is installed on the top side of the third chamber 7.

[0022] Furthermore, the dust collection box 2 includes a dust collection box outer wall 201, a pull-out dust collection box 202 is provided on the inner side of the dust collection box outer wall 201, a dust collection box cover 203 is fixedly installed on the left side of the pull-out dust collection box 202, and a handle 204 is fixedly installed on the left side of the dust collection box cover 203.

[0023] With the above technical solution, since the space inside the first chamber 1 is small, it is not convenient to clean the dust that may accumulate on the inside of the dustproof net 3. The added dust brush 103 can be turned on periodically after long-term use, so as to clean the dust on the inside of the dustproof net 3. Only the dust inside the dust collection box 2 needs to be cleaned periodically to keep the inside of the dustproof net 3 clean, and to prevent the fan blades of the fan 9 from sucking in dust and causing malfunctions, which greatly improves the cleanliness of the equipment.

[0024] Furthermore, there are three fans 9, which are installed on the rear inner walls of the first chamber 1, the second chamber 5, and the third chamber 7, respectively.

[0025] Through the above technical solution, the multiple fans 9 can more effectively draw in air for filtration, thus effectively improving the air purification efficiency of the equipment.

[0026] Furthermore, the rear inner walls of the first chamber 1, the second chamber 5, and the third chamber 7 are all provided with through holes that connect to the ventilation duct 1 4, the ventilation duct 2 6, and the exhaust duct 8.

[0027] With the above technical solution, after air enters the first chamber 1, it can smoothly enter the remaining chambers to complete the air filtration.

[0028] Working principle: After the equipment is started, the exhaust gas generated during production first reaches the first chamber 1. The dustproof net 3 can block larger diameter dust and foreign objects to prevent the fan 9 from getting entangled in foreign objects and causing malfunctions. After passing through the first chamber 1, it reaches the second chamber 5 through the ventilation duct 1 4. The activated carbon particles inside the second chamber 5 will first perform a simple filtration of the exhaust gas and absorb the odor generated by the production of plastic products in the exhaust gas. The through holes on the activated carbon box 503 can effectively help the air circulation inside the equipment. After passing through the activated carbon box 503, the exhaust gas will be entered into the third chamber 7 by the fan 9 through the ventilation duct 2 6. The multi-layer filter material set inside the third chamber 7 will perform more detailed filtration of the exhaust gas. After passing through layers of filtration, the exhaust gas meets the emission standards and is finally discharged into the atmosphere through the exhaust duct 8, reducing the impact on the atmosphere.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ventilation device for manufacturing plastic products, comprising a first chamber (1), characterized in that: A dust collection box (2) is fixedly installed on the bottom surface of the first chamber (1). A dustproof net (3) is fixedly installed on the front of the first chamber (1). A sliding groove (101) is fixedly installed on the inner side of the first chamber (1). A slider (102) is movably installed on the outer side of the sliding groove (101). A dust brush (103) is fixedly installed on the side of the slider (102). A ventilation duct (4) is fixedly installed on the rear side of the first chamber (1). A second chamber (5) is fixedly installed on the rear side of the first ventilation duct (4). A second ventilation duct (6) is fixedly installed on the rear side of the second chamber (5). A third chamber (7) is fixedly installed on the rear side of the second ventilation duct (6). An exhaust duct (8) is fixedly installed on the rear side of the third chamber (7). A fan (9) is fixedly installed on the inner wall of the rear side of the first chamber (1). Activated carbon box fixing grooves (501) are fixedly installed on the left and right sides of the inner side of the second chamber (5). An activated carbon box (503) is provided in the activated carbon box fixing groove (501). An activated carbon box cover plate (502) is provided on the top side of the activated carbon box (503). A second chamber cover plate (504) is provided on the top surface of the second chamber (5). A filter material fixing groove (701) is fixedly installed inside the third chamber (7). There are eight filter material fixing grooves (701) in total, with two in each group. Filter material is movably installed inside each group of filter material fixing grooves (701). Activated carbon filter cotton (705) is provided inside the third chamber (7). Glass fiber filter cotton (704) is provided behind the activated carbon filter cotton (705). Non-woven filter cotton (703) is provided behind the glass fiber filter cotton (704). HEPA filter paper (702) is provided behind the non-woven filter cotton (703). A third chamber cover plate (706) is provided on the top side of the third chamber (7).

2. The ventilation device for manufacturing plastic products according to claim 1, characterized in that: The dust collection box (2) includes a dust collection box outer wall (201), and a pull-out dust collection box (202) is provided on the inner side of the dust collection box outer wall (201). A dust collection box cover plate (203) is fixedly installed on the left side of the pull-out dust collection box (202), and a handle (204) is fixedly installed on the left side of the dust collection box cover plate (203).

3. A ventilation device for manufacturing plastic products according to claim 1, characterized in that: There are three fans (9), which are installed on the rear inner walls of the first chamber (1), the second chamber (5) and the third chamber (7), respectively.

4. A ventilation device for manufacturing plastic products according to claim 1, characterized in that: The rear inner walls of the first chamber (1), the second chamber (5), and the third chamber (7) are all provided with through holes that connect to the ventilation duct one (4), the ventilation duct two (6), and the exhaust duct (8).