Die head exhaust device for film stretching equipment

Abstract

The utility model relates to the field of film stretching equipment, and discloses a die head exhaust device for film stretching equipment, which comprises an exhaust hood, the top of the exhaust hood is fixedly connected with an air guide pipe, the top of the air guide pipe is provided with a filter mechanism, an auxiliary cleaning mechanism is arranged right below the exhaust hood, and the filter mechanism is arranged below the exhaust hood. An exhaust fan is installed at the top of the filtering mechanism, a discharge pipe is installed at the top of the exhaust fan, the auxiliary cleaning mechanism comprises a high-temperature-resistant vertical curtain and a sliding rail, the high-temperature-resistant vertical curtain is composed of a plurality of independent strip-shaped vertical curtains, and a female buckle assembly is arranged at the top of the high-temperature-resistant vertical curtain. According to the utility model, the exhaust hood is arranged above the die head and the high-temperature-resistant vertical curtain is additionally arranged, so that a flexible barrier is formed to collect high-temperature oil gas and VOCs (Volatile Organic Compounds) in a centralized manner, and smoke is prevented from escaping. The vertical curtain can be slidably adjusted and detached for cleaning, and stable operation is ensured. Flue gas is introduced into the filtering mechanism through the air guide pipe and is discharged after reaching the standard after being filtered by activated carbon, and pollution is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to thin film stretching equipment field especially relates to a die exhaust device for thin film stretching equipment. BACKGROUND

[0002] Thin film stretching equipment is a key technology in plastic film production, used to change the physical size and performance of the film through mechanical stretching. This equipment is widely used in food packaging, electronic product protection and industrial film field, which can improve the transparency, strength and barrier properties of the film. By stretching the film unidirectionally or bidirectionally at a certain temperature, the rearrangement of molecular chains is realized, thereby enhancing the mechanical properties and thermal stability. The equipment usually includes feeding, heating, stretching, cooling, heat setting and winding modules, which work together to ensure uniform film thickness and stable performance. With the growing demand of the film market, this technology gradually develops towards high precision, high efficiency and intelligence, promoting the continuous upgrading of the plastic film industry.

[0003] A die exhaust device for thin film stretching equipment aims to solve the problem of effective emission of high temperature and volatile gas in the die area, ensuring the stability of equipment operation and environmental protection requirements. Its main structure includes exhaust hood, exhaust duct, fan system and filtering device. The exhaust hood collects the hot air and volatile organic compounds (VOCs) generated by the die, the exhaust duct and fan system quickly exhaust them, and the filtering device removes dust and harmful substances, reducing environmental pollution. It is an important auxiliary mechanism of thin film stretching equipment.

[0004] However, the die exhaust system of existing thin film stretching equipment has many defects, mainly including smoke escape, volatile accumulation and low collection efficiency. Smoke escape not only pollutes the workshop environment, but also endangers the health of operators; volatile substances accumulate at the die, which may form droplets falling on the film, causing surface defects and damage during stretching, seriously affecting product quality. In addition, the traditional exhaust system has low collection efficiency, and the smoke is easily disturbed by external airflow, making it difficult to collect and process, and the volatile organic compounds (VOCs) are not completely treated, which may exceed the emission standard and increase the environmental protection risk.

[0005] To solve the above problems, a die exhaust device for thin film stretching equipment is proposed. INVENTION CONTENTS

[0006] In order to make up for the above shortcomings, the utility model provides a die exhaust device for thin film stretching equipment, which aims to solve the problem of effective emission of high temperature and volatile gas in the die area, ensuring the stability of equipment operation and environmental protection requirements.

[0007] In order to achieve the above object, the utility model discloses the following technical scheme: a die exhaust device for film stretching equipment, including the exhaust hood, the top of the exhaust hood is fixedly connected with the air deflector pipe, the top of the air deflector pipe is provided with the filtering mechanism, the just below of the exhaust hood is provided with the auxiliary cleaning mechanism, the top of the filtering mechanism is installed the exhaust fan, the top of the exhaust fan is installed the exhaust pipe,

[0008] The auxiliary cleaning mechanism includes a high-temperature-resistant vertical curtain and a slide rail, the high-temperature-resistant vertical curtain is composed of a plurality of separate strip-shaped vertical curtains, a female buckle assembly is arranged at the top of the high-temperature-resistant vertical curtain, and an adjusting assembly is arranged in the slide rail.

[0009] As a further description of the above technical scheme:

[0010] The female buckle assembly includes a connecting sheet, and a female buckle is formed in the connecting sheet.

[0011] As a further description of the above technical scheme:

[0012] The adjusting assembly includes a sliding block, a sliding groove is formed in the slide rail, the sliding block is slidably connected in the sliding groove, and a male buckle assembly is arranged in the sliding block.

[0013] As a further description of the above technical scheme:

[0014] The male buckle assembly includes a male buckle body, and a male buckle head is arranged at one end of the male buckle body away from the sliding block.

[0015] As a further description of the above technical scheme:

[0016] The filtering mechanism includes a square cylinder, an activated carbon filter cylinder is arranged in the square cylinder, and a cylinder cover is threadedly connected to the top of the activated carbon filter cylinder.

[0017] As a further description of the above technical scheme:

[0018] The exhaust fan is fixedly connected to the top of the square cylinder, and the bottom of the square cylinder is fixedly connected to the top of the air deflector pipe.

[0019] As a further description of the above technical scheme:

[0020] The top of the high-temperature-resistant vertical curtain is fixedly connected with a connecting sheet, and the male buckle head is clamped between the female buckle.

[0021] As a further description of the above technical scheme:

[0022] One end of the male buckle body is fixedly connected to the inside of the sliding block, and the slide rail is fixedly connected to the outside bottom of the exhaust hood.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, the exhaust hood is arranged above the die head of the stretching equipment, and the high-temperature-resistant vertical curtain is installed below the exhaust hood, the high-temperature oil gas is collected in the exhaust hood, but may overflow due to the gap of the cover opening, after the vertical curtain is added, a flexible barrier is formed to restrict the oil gas in the exhaust hood, and the smoke and volatile organic compounds (VOCs) generated during the production of the extinction film are sucked into the air guide pipe by the exhaust fan, thereby avoiding the influence of the smoke escaping on the workshop environment and product quality, and the addition of the high-temperature-resistant vertical curtain effectively guides the smoke to concentrate into the exhaust system to prevent the smoke from escaping and accumulating in the die head area.

[0025] 2. In the utility model, the high-temperature-resistant vertical curtain is connected with the sliding block in the slide rail through the connecting piece, and is effectively fixed by the clamping between the male buckle and the female buckle, after the high-temperature-resistant vertical curtain works for a long time, the outer surface will be stained with a layer of oil stains, after the female buckle and the male buckle are separated, the strip-shaped vertical curtain is taken down for cleaning, and the next use is facilitated.

[0026] 3. In the utility model, the high-temperature-resistant vertical curtain can be adjusted by the sliding sliding block to ensure that it is always located above the film, when the film passes through the vertical curtain, the curtain piece can be slightly moved to adapt to the film operation, the production is avoided from being affected, and the sealing property is not affected, and the absorption of the smoke maintains high efficiency.

[0027] 4. In the utility model, the smoke and volatile organic compounds sucked into the air guide pipe are treated by the activated carbon filter cartridge inside the square cylinder, waste gas is ensured to be discharged up to the standard, and thus environmental pollution is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A perspective view of a die head exhaust device for a film stretching equipment is provided for the utility model;

[0029] Figure 2 A structure diagram of a high-temperature-resistant vertical curtain of a die head exhaust device for a film stretching equipment is provided for the utility model;

[0030] Figure 3 A structure diagram of a sliding block of a die head exhaust device for a film stretching equipment is provided for the utility model;

[0031] Figure 4 A Figure 2 An enlarged view of A in the utility model;

[0032] Figure 5 A structure diagram of an activated carbon filter cartridge of a die head exhaust device for a film stretching equipment is provided for the utility model.

[0033] LEGEND:

[0034] 1. Exhaust hood; 2. Air duct; 3. Filter mechanism; 301. Square cylinder; 302. Activated carbon filter cylinder; 303. Cylinder cover; 4. Auxiliary cleaning mechanism; 401. High-temperature resistant vertical curtain; 402. Slide rail; 403. Slide groove; 404. Slider; 405. Buckle body; 406. Buckle head; 407. Connecting piece; 408. Female buckle; 5. Exhaust fan; 6. Exhaust pipe. DETAILED DESCRIPTION

[0035] 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.

[0036] Reference Figure 1 - Figure 4The utility model provides an embodiment: a kind of die head exhaust device for film stretching equipment, including exhaust hood 1, the bottom of exhaust hood 1 is provided with auxiliary cleaning mechanism 4. Auxiliary cleaning mechanism 4 aims to improve the exhaust efficiency of exhaust device, while also can reduce the pollutant and impurity attached in the bottom of exhaust hood 1 during equipment operation, ensure long-term stable operation of equipment. Auxiliary cleaning mechanism 4 includes high-temperature-resistant vertical curtain 401 and slide rail 402. Among them, high-temperature-resistant vertical curtain 401 is combined by multiple individual strip vertical curtains, this design can effectively improve the flexibility of high-temperature-resistant vertical curtain 401, and enhance the adaptability to different working condition environment. Each strip vertical curtain is made of high-temperature-resistant material, can withstand continuous operation under high-temperature environment, while having strong corrosion resistance and cleaning capacity, the top of high-temperature-resistant vertical curtain 401 is connected with slide rail 402 by female buckle assembly, and female buckle assembly includes connecting sheet 407, and female buckle 408 is arranged in the inside of connecting sheet 407. High-temperature-resistant vertical curtain 401 top is fixedly connected to connecting sheet 407, to realize the function of quick disassembly and assembly. This design is convenient for later maintenance and replacement, and can ensure the stability and reliability of connection, adjustment assembly is arranged in the inside of slide rail 402, and the structure design of adjustment assembly aims to ensure that the suspension height and position of high-temperature-resistant vertical curtain 401 can be adjusted according to actual demand, to adapt to multiple working scenes. Adjustment assembly includes sliding block 404, and slide rail 402 is provided with sliding groove 403, and sliding block 404 is embedded in the inside of sliding groove 403 by sliding connection, and the design of sliding groove 403 makes that sliding block 404 can move freely along the direction of slide rail 402, to realize the positioning adjustment of curtain body. Sub-dog assembly is arranged in the inside of sliding block 404, and sub-dog assembly includes sub-dog body 405 and sub-dog head 406. Among them, one end of sub-dog body 405 is fixedly connected in the inside of sliding block 404, and the other end is provided with sub-dog head 406. Sub-dog head 406 and female buckle 408 are connected by clamping, and this connection mode not only simplifies installation and disassembly process, but also can guarantee the stable suspension of high-temperature-resistant vertical curtain 401 in high-temperature operation environment. In addition, slide rail 402 is firmly installed on the outside bottom of exhaust hood 1 by fixed structure, to further improve the structural stability and operation safety of overall device. Meanwhile, the adjustment assembly on slide rail 402 allows operator to flexibly adjust the position of high-temperature-resistant vertical curtain 401 according to different process requirements, to ensure cleaning effect and exhaust efficiency.

[0037] Refer to Figure 1 And Figure 5The top of the exhaust hood 1 is fixedly connected with an air guide pipe 2, which is used to guide the airflow in the exhaust hood 1 to be discharged upward. The air guide pipe 2 is designed as an up-down channel type, and the internal structure is smooth to reduce airflow resistance and improve exhaust efficiency. The top of the air guide pipe 2 is provided with a filtering mechanism 3, which is used to effectively filter and purify the discharged exhaust gas, thereby reducing the pollution of harmful substances in the exhaust gas to the environment. The filtering mechanism 3 mainly consists of a square cylinder 301, an activated carbon filter cylinder 302 and a cylinder cover 303. The square cylinder 301 is the shell of the filtering mechanism 3 and is made of corrosion-resistant material, which can adapt to the working environment of high temperature, high humidity and corrosive gas for a long time. The activated carbon filter cylinder 302 is installed in the square cylinder 301, which is the core component of the filtering mechanism 3. The inside of the activated carbon filter cylinder 302 is filled with high-efficiency activated carbon material, which is used to adsorb harmful substances and odors in the exhaust gas to ensure the cleanliness of the discharged gas. In order to facilitate maintenance and replacement, the top of the activated carbon filter cylinder 302 is fixedly connected with the cylinder cover 303 through screw connection. The design of the cylinder cover 303 not only facilitates disassembly and assembly, but also tightly seals the inside of the filter cylinder during equipment operation, avoiding exhaust gas leakage. In addition, the sealing design of the cylinder cover 303 can effectively prolong the service life of the activated carbon filter cylinder 302 and ensure the continuous stability of the filtering effect. In order to improve the exhaust capacity, the top of the filtering mechanism 3 is installed with an exhaust fan 5, which is fixedly connected to the top of the square cylinder 301. By high-speed operation, a negative pressure environment is formed to suck the exhaust gas from the inside of the exhaust hood 1, and then the exhaust gas is discharged outside the equipment after passing through the air guide pipe 2 and the filtering mechanism 3. The top of the exhaust fan 5 is also installed with an exhaust pipe 6, which is used to guide the gas safely discharged to the designated area after being filtered and purified.

[0038] Working principle: The film stretching equipment exhaust device collects the exhaust gas generated during equipment operation through the exhaust hood 1. The exhaust gas is guided to the top filtering mechanism 3 through the air guide pipe 2. The filtering mechanism 3 is internally provided with an activated carbon filter cylinder 302, which uses high-efficiency activated carbon material to adsorb harmful substances and odors in the exhaust gas. After purification, the exhaust fan 5 forms a negative pressure to discharge the gas outside the equipment. The exhaust fan 5 is connected with the exhaust pipe 6 at the top to ensure the safe discharge of the purified gas. In addition, the high-temperature-resistant vertical curtain 401 can improve the absorption efficiency of the equipment for the smoke and volatile organic compounds VOCs generated during the production of extinction film. At the same time, the slide rail 402 and the adjusting assembly ensure the flexible adjustment of the curtain position, improve the cleaning effect and exhaust efficiency, and realize efficient and environmentally friendly exhaust treatment.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A die head exhaust device for a film stretching device, comprising an exhaust hood (1), characterized in that: The top of the exhaust hood (1) is fixedly connected to an air guide pipe (2), the top of the air guide pipe (2) is provided with a filtering mechanism (3), an auxiliary cleaning mechanism (4) is provided directly below the exhaust hood (1), an exhaust fan (5) is installed on the top of the filtering mechanism (3), and an exhaust pipe (6) is installed on the top of the exhaust fan (5); The auxiliary cleaning mechanism (4) comprises a high-temperature resistant vertical curtain (401) and a slide rail (402), wherein the high-temperature resistant vertical curtain (401) is composed of a plurality of separate strip-shaped vertical curtains, a female buckle assembly is provided at the top of the high-temperature resistant vertical curtain (401), and an adjustment assembly is provided inside the slide rail (402).

2. The die head exhaust device for film stretching equipment according to claim 1, characterized in that: The female buckle assembly comprises a connecting piece (407), and a female buckle (408) is provided inside the connecting piece (407).

3. The die head exhaust device for film stretching equipment according to claim 2, characterized in that: The adjustment component comprises a slider (404), a slide groove (403) is provided inside the slide rail (402), the slider (404) is slidably connected inside the slide groove (403), and a buckle component is provided inside the slider (404).

4. The die head exhaust device for film stretching equipment according to claim 3, characterized in that: The sub-button assembly comprises a sub-button body (405), and a sub-button head (406) is provided at one end of the sub-button body (405) away from the slider (404).

5. The die head exhaust device for film stretching equipment according to claim 1, characterized in that: The filtering mechanism (3) comprises a square cylinder (301), an activated carbon filter cylinder (302) is installed inside the square cylinder (301), and a cylinder cover (303) is threadedly connected to the top of the activated carbon filter cylinder (302).

6. The die head exhaust device for film stretching equipment according to claim 5, characterized in that: The exhaust fan (5) is fixedly connected to the top of the square tube (301), and the bottom of the square tube (301) is fixedly connected to the top of the air guide pipe (2).

7. The die head exhaust device for film stretching equipment according to claim 4, characterized in that: A connecting piece (407) is fixedly connected to the top of the high-temperature resistant vertical curtain (401), and the sub-buckle head (406) is clamped with the female buckle (408).

8. The die head exhaust device for film stretching equipment according to claim 4, characterized in that: One end of the sub-buckle body (405) is fixedly connected to the inside of the slider (404), and the slide rail (402) is fixedly connected to the outer bottom of the exhaust hood (1).

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