Dehumidifying device for PO greenhouse film production

Abstract

The utility model discloses a dehumidification device for PO greenhouse film production, which comprises a fixing frame, a corona machine and a greenhouse film, the fixing frame comprises a cross rod and a vertical rod, the left end of the fixing frame is connected with a tensioning roller in a sliding manner, the lower end of the fixing frame is fixedly provided with a dip-coating pool, a material uniformizing roller is arranged above the dip-coating pool in a mirroring manner, the material uniformizing roller is connected with the fixing frame in a sliding manner, and the corona machine is connected with the corona machine. Scraping plates are arranged at the upper end of the material uniformizing roller in a mirror image mode and rotationally connected with the fixing frame, tension springs are fixed to the front ends and the rear ends of the two scraping plates correspondingly, and the draught fan, the electric heating wire and the guide plate work in a combined mode, so that the draught fan can blow heat generated by the electric heating wire to a greenhouse film to conduct drying and dehumidification; meanwhile, the greenhouse film is placed in the dehumidification box to be dehumidified, loss of heat of the electric heating wires is reduced, the drying and dehumidification effects of the greenhouse film are guaranteed, heat generated by the electric heating wires can be evenly blown to the greenhouse film to be dried and dehumidified through obliquely-upward long-strip-shaped through holes in the guide plates, and it is guaranteed that the dehumidification effects of all the positions of the greenhouse film are the same.

Description

Technical Field

[0001] The utility model relates to the technical field of PO production dehumidification, in particular to a dehumidification device for PO greenhouse film production. Background Art

[0002] PO film is a new type of agricultural film produced by using high-grade olefin raw materials and other additives through external spray drying process. It usually refers to polymers of ethylene, propylene or high-grade olefins. Among them, ethylene (PE) and propylene (PP) are the most important. The production process of PO film mainly involves feeding, mixing, melt extrusion, film blowing, corona surface, impregnation with PO coating liquid, drying, winding, inspection and storage.

[0003] Chinese patent announcement number CN215656127U discloses a dehumidification and energy-saving device for PO greenhouse film production, including a first moisture absorption pipe and a second moisture absorption pipe, the first moisture absorption pipe and the second moisture absorption pipe are arranged in parallel at the inlet of the drying box, the first moisture absorption pipe and the second moisture absorption pipe are arranged on the side close to each other with a plurality of air suction holes, one end of the first moisture absorption pipe and the second moisture absorption pipe is closed, the other end of the first moisture absorption pipe and the second moisture absorption pipe is connected to the dehumidification box through a connecting pipe, a draft fan is arranged in the middle of the connecting pipe, a radiator is arranged on the bottom inner wall of the dehumidification box, a condensation element is arranged above the radiator, a plurality of semiconductor refrigeration sheets are arranged between the radiator and the condensation element, and an air outlet pipe is arranged on the top of the dehumidification box. The utility model absorbs moisture in time through the first moisture absorption pipe and the second moisture absorption pipe, saves energy consumption, significantly reduces the loss rate of the fan and the heating pipe, the film after drying will not be dampened again, has high transparency, and the PO coating liquid is kept on the surface of the film for a long time, reducing the scrap rate.

[0004] The above solution may encounter the following problems during use:

[0005] 1. Since most of the film in the drying box is exposed to the air, the heat generated by the drying box is easily dissipated, resulting in poor drying and dehumidification effects of the entire device and a waste of heat energy.

[0006] 2. The coated film is scraped flat by the first scraping roller and the second scraping roller, but the excess coating liquid on the film cannot be processed. It takes a long time to complete the drying and dehumidification of the film when it enters the drying box for dehumidification, which increases the loss of electric energy and reduces the efficiency of film drying and dehumidification. Utility Model Content

[0007] The purpose of the utility model is to provide a dehumidification device for PO greenhouse film production, which solves the problems in the above-mentioned prior art.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dehumidification device for PO greenhouse film production, comprising a fixed frame, a corona machine and a greenhouse film, the fixed frame comprising a horizontal bar and a vertical bar, the left end of the fixed frame is slidably connected with a tensioning roller, the lower end of the fixed frame is fixed with a dipping pool, the upper mirror image of the dipping pool is provided with a material leveling roller, the material leveling roller is slidably connected with the fixed frame, the upper end of the material leveling roller is mirror imaged with a scraper, the scraper is rotatably connected with the fixed frame, the front and rear ends of the two scrapers are respectively fixed with tension springs, the upper end of the fixed frame is fixed with a dehumidification box, the upper end of the dehumidification box is fixed with a support frame, and the upper end of the support frame is mirror imaged with a traction roller;

[0009] An air duct is provided at the mirror image of the upper end of the dehumidification box, a Y-shaped connector and a condensation box are fixed at the front end of the dehumidification box, the condensation box is connected with the dehumidification box through the air duct and the Y-shaped connector, an air outlet is provided at the front end of the condensation box, a drain outlet is connected at the lower end of the condensation box, fans are fixed at the left and right ends of the dehumidification box, guide plates are symmetrically fixed inside the dehumidification box, heating wires are respectively fixed on opposite sides of the guide plates, and a condenser is fixed inside the condensation box.

[0010] Preferably, the inner wall of the dipping pool is rotatably connected with a guide roller, the upper end of the dipping pool is funnel-shaped, and the dipping pool is located directly below the scraper.

[0011] Preferably, the front end and the rear end of the scraper are rotatably connected to the cross bar of the fixed frame respectively, and the scraper is located directly above the material leveling roller.

[0012] Preferably, the front and rear ends of the tensioning roller are rotatably connected to sliders respectively, and a groove is provided on the side opposite to the left vertical rod of the fixed frame. The tensioning roller slides in the groove of the vertical rod of the fixed frame through the slider, and a tensioning spring is fixed to the lower end of the slider, and the lower end of the tensioning spring is fixedly connected to the fixed frame.

[0013] Preferably, the front end and the rear end of the material leveling roller are rotatably connected to sliding blocks respectively, and sliding grooves are respectively opened on the opposite sides of the cross bar of the fixed frame. The material leveling roller slides in the sliding grooves of the cross bar of the fixed frame through the sliding blocks, and one end of a compression spring is fixed on the opposite side of the sliding block, and the other end of the compression spring is respectively fixedly connected to the fixed frame.

[0014] Preferably, the condenser is fixed above the inner wall of the condensation box, and the air outlet is located below the condenser.

[0015] Preferably, the guide plate is evenly distributed with a plurality of elongated through holes inclined upward.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The combined operation of the fan, electric heating wire and guide plate is conducive to the fan blowing the heat generated by the electric heating wire onto the greenhouse film for drying and dehumidification. At the same time, the greenhouse film is placed inside the dehumidification box for dehumidification, reducing the heat loss of the electric heating wire and ensuring the drying and dehumidification effect of the greenhouse film. The long strip through holes inclined upward on the guide plate are conducive to evenly blowing the heat generated by the electric heating wire onto the greenhouse film for drying and dehumidification, ensuring the same dehumidification effect at all parts of the greenhouse film. The moisture in the moisture is removed through the condenser, and the moisture in the moisture is collected and recycled through the drain outlet to improve energy utilization.

[0018] 2. The greenhouse film is soaked and coated in the dipping pool to ensure complete coating of the greenhouse film. The greenhouse film stained with coating liquid is leveled by the leveling roller, which is conducive to evenly coating the coating liquid on both sides of the greenhouse film. The excess coating liquid on the greenhouse film is scraped off by the scraper, which reduces the time of drying and dehumidification of the greenhouse film and improves the dehumidification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional schematic diagram of the dehumidification box of the utility model;

[0021] Figure 3 It is a schematic diagram of the scraper of the utility model;

[0022] Figure 4 It is a schematic diagram of a fixing frame of the utility model;

[0023] Figure 5 It is a schematic diagram of the tensioning roller of the utility model;

[0024] Figure 6 This is a schematic diagram of the material leveling roller of the utility model;

[0025] Figure 7 It is a cross-sectional schematic diagram of the condensation box of the utility model.

[0026] Explanations in the figure: 1. Fixed frame; 2. Dipping tank; 3. Scraper; 4. Material leveling roller; 5. Dehumidification box; 6. Support frame; 7. Corona machine; 8. Greenhouse film; 101. Tensioning roller; 102. Tensioning spring; 201. Guide roller; 301. Tensioning spring; 401. Compression spring; 501. Fan; 502. Air duct; 503. Y-type connector; 504. Condensation box; 505. Air outlet; 506. Drain outlet; 507. Heating wire; 508. Guide plate; 509. Condenser; 601. Traction roller. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0028] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6A dehumidification device for PO greenhouse film production, comprising a fixed frame 1, a corona machine 7 and a greenhouse film 8. The corona machine 7 is used for surface treatment of plastic film or plastic sheet products. Before ink printing, compounding, film blowing, coating, gluing, material modification, grafting, polymerization, coating, casting, and pasting, in order to make the surface of the product have stronger adhesion and prevent the raw materials from appearing in the production process. The printing color is thrown, the compound paste is not firm, the coating leaks unevenly, and the quality of the product is affected. The corona impact treatment must be carried out first. The corona machine 7 is a prior art and will not be repeated here. The fixed frame 1 comprises a horizontal bar and a vertical bar. The left end of the fixed frame 1 is slidably connected to a tensioning roller 101. The front end and the rear end of the tensioning roller 101 are respectively A slider is rotatably connected to the fixing frame 1, and a groove is provided on the side opposite to the left vertical rod of the fixing frame 1. The tensioning roller 101 slides in the groove of the vertical rod of the fixing frame 1 through the slider, and a tensioning spring 102 is fixed to the lower end of the slider. The tensioning roller 101 is slidably connected to the fixing frame 1 and is connected through the tensioning spring 102. The tensioning spring 102 moves upward against the tensioning roller 101, thereby realizing the tensioning effect of the tensioning roller 101 on the greenhouse film 8, preventing the greenhouse film 8 from becoming loose and wrinkled when the coating liquid is applied, so that the penetration effect of the greenhouse film 8 is different, affecting the later use effect. The lower end of the tensioning spring 102 is fixedly connected to the fixing frame 1, and a dipping pool 2 is fixed to the lower end of the fixing frame 1, and the inner wall of the dipping pool 2 is rotatably connected to the guide roller 201 The upper end of the dipping pool 2 is funnel-shaped, and the shed film 8 is guided by the guide roller 201, which is conducive to making the shed film 8 completely enter the coating liquid inside the dipping pool 2 for immersion. The upper end of the dipping pool 2 is set to a funnel shape, which is convenient for the dipping pool 2 to collect the coating liquid scraped by the scraper 3. The dipping pool 2 is located directly below the scraper 3. A material leveling roller 4 is mirrored above the dipping pool 2. The material leveling roller 4 is slidably connected to the fixed frame 1, and the front and rear ends of the material leveling roller 4 are respectively rotatably connected with sliding blocks. The opposite sides of the cross bar of the fixed frame 1 are respectively provided with slide grooves, and the material leveling roller 4 slides in the slide groove of the cross bar of the fixed frame 1 through the sliding block. One end of a compression spring 401 is fixed on the opposite side of the sliding block, and the compression spring 401 The other end is fixedly connected to the fixing frame 1 respectively, the material-leveling roller 4 is slidably connected to the fixing frame 1 and fixed by a compression spring 401, so that the two material-leveling rollers 4 squeeze and level the greenhouse film 8 against each other, so that the coating liquid on the greenhouse film 8 is evenly coated on both sides of the greenhouse film 8 to ensure the coating effect of the greenhouse film 8, and the upper end of the material-leveling roller 4 is mirrored with a scraper 3, the scraper 3 is rotatably connected to the fixing frame 1, and the front and rear ends of the scraper 3 are rotatably connected to the cross bar of the fixing frame 1 respectively, the scraper 3 is located directly above the material-leveling roller 4, and the front and rear ends of the two scrapers 3 are fixed with tensioning springs 301 respectively, the scraper 3 is rotatably connected to the fixing frame 1, and the scrapers 3 are connected by the tensioning spring 301, so that the upper end of the scraper 3 clamps the greenhouse film 8,It is convenient to scrape off the excess coating liquid attached to the greenhouse film 8, improve the dehumidification efficiency of the device, and at the same time, the scraper 3 drops the scraped coating liquid into the dipping pool 2 for continued use, reducing the waste of materials. The upper end of the fixed frame 1 is fixed with a dehumidification box 5, and the upper end of the dehumidification box 5 is fixed with a support frame 6. The upper end of the support frame 6 is mirrored with a traction roller 601, and the traction roller 601 itself has a driving motor to realize the winding and pulling out of the greenhouse film 8.

[0031] See also Figure 1 , Figure 2 and Figure 7 , the upper end of the dehumidification box 5 is mirror-imaged with an air duct 502, the front end of the dehumidification box 5 is fixed with a Y-shaped connector 503 and a condensation box 504, the condensation box 504 is connected with the dehumidification box 5 through the air duct 502 and the Y-shaped connector 503, the front end of the condensation box 504 is provided with an air outlet 505, the lower end of the condensation box 504 is connected with a drain outlet 506, the left and right ends of the dehumidification box 5 are fixed with fans 501, and the interior of the dehumidification box 5 is symmetrically fixed with guide plates 508, and the guide plates 508 are evenly distributed with a plurality of obliquely upward long strip through holes, which are conducive to evenly blowing the heat generated by the electric heating wire 507 onto the greenhouse film 8 for drying and dehumidification through the obliquely upward long strip through holes on the guide plates 508, thereby ensuring the same dehumidification effect at various places of the greenhouse film 8, and the electric heating wire 507 is fixed on the opposite side of the guide plates 508 respectively, through the fan 501 The combined operation of the electric heating wire 507 and the guide plate 508 is conducive to the fan 501 blowing the heat generated by the electric heating wire 507 onto the greenhouse film 8 for drying and dehumidification, and at the same time placing the greenhouse film 8 inside the dehumidification box 5 for dehumidification, reducing the heat loss of the electric heating wire 507, and ensuring the drying and dehumidification effect of the greenhouse film 8. A condenser 509 is fixed inside the condensation box 504, and the condenser 509 is fixed above the inner wall of the condensation box 504. The air outlet 505 is located below the condenser 509. The moisture dried and dehumidified inside the dehumidification box 5 enters the condensation box 504 through the air duct 502 and the Y-type connector 503. The moisture in the moisture meets the condenser 509 and condenses to form water, and the moisture in the moisture is removed. At the same time, the moisture in the moisture is collected, recycled and reused through the drain port 506, so as to improve the energy utilization rate, and the dehumidified gas is discharged through the air outlet 505.

[0032] When the utility model is used:

[0033] First, one end of the greenhouse film 8 is passed through the upper end of the tension roller 101 through the corona machine 7, bypasses the guide roller 201, passes between the two material leveling rollers 4, between the two scrapers 3, through the dehumidification box 5, and between the two traction rollers 601. After completion, the coating liquid is poured into the dipping tank 2, and the various components of the device are started to work;

[0034] Then, the driving motor of the traction roller 601 drives the greenhouse film 8 to move, and the greenhouse film 8 is pulled out from the inside of the corona machine 7 and enters the coating liquid in the dipping tank 2 to be soaked. The soaked greenhouse film 8 is squeezed and evenly distributed by the material leveling roller 4, and the coating liquid is evenly applied to both sides of the greenhouse film 8. The greenhouse film 8 continues to move and enters between the scrapers 3. The scrapers 3 are acted upon by the tension springs 301, so that the scrapers 3 clamp the greenhouse film 8 and scrape off the excess coating liquid on both sides of the greenhouse film 8. The scraped coating liquid drips along the surface of the scrapers 3 into the dipping tank 2 for continued use.

[0035] Next, the greenhouse film 8 enters the dehumidification box 5 for drying and dehumidification. The electric heating wire 507 generates heat, and the fan 501 blows air into the dehumidification box 5. The air is heated by the electric heating wire 507, and the hot air is blown evenly onto the surface of the greenhouse film 8 through the obliquely upward long strip through holes on the guide plate 508 for dehumidification. The hot air dries and dehumidifies the greenhouse film 8.

[0036] Finally, the moisture formed after drying and dehumidification enters the condensation box 504 through the air duct 502 and the Y-type connector 503. After encountering the condenser 509, the moisture is condensed and liquefied to form water droplets. The water droplets adsorb each other inside the condensation box 504 and are discharged from the drain port 506. The dehumidified air in the condensation box 504 is discharged through the air outlet 505, and the greenhouse film 8 is pulled out from the inside of the dehumidification box 5 to complete the dehumidification.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dehumidification device for PO greenhouse film production, comprising a fixing frame (1), a corona machine (7) and a greenhouse film (8), Features: The fixed frame (1) comprises a horizontal bar and a vertical bar, the left end of the fixed frame (1) is slidably connected to a tensioning roller (101), the lower end of the fixed frame (1) is fixed to a dipping pool (2), a material leveling roller (4) is provided in a mirror image above the dipping pool (2), the material leveling roller (4) is slidably connected to the fixed frame (1), the upper end of the material leveling roller (4) is provided with a scraper (3) in a mirror image, the scraper (3) is rotatably connected to the fixed frame (1), the front and rear ends of the two scrapers (3) are respectively fixed with tension springs (301), the upper end of the fixed frame (1) is fixed to a dehumidification box (5), the upper end of the dehumidification box (5) is fixed to a support frame (6), and the upper end of the support frame (6) is provided with a traction roller (601) in a mirror image; The upper end of the dehumidification box (5) is mirror-imaged with an air duct (502), the front end of the dehumidification box (5) is fixed with a Y-shaped connector (503) and a condensation box (504), the condensation box (504) is connected to the dehumidification box (5) through the air duct (502) and the Y-shaped connector (503), the front end of the condensation box (504) is provided with an air outlet (505), the lower end of the condensation box (504) is connected with a drain outlet (506), the left and right ends of the dehumidification box (5) are fixed with fans (501), the interior of the dehumidification box (5) is symmetrically fixed with guide plates (508), the opposite sides of the guide plates (508) are respectively fixed with electric heating wires (507), and the interior of the condensation box (504) is fixed with a condenser (509).

2. A dehumidification device for PO greenhouse film production according to claim 1, Features: The inner wall of the dipping pool (2) is rotatably connected to a guide roller (201); the upper end of the dipping pool (2) is funnel-shaped; and the dipping pool (2) is located directly below the scraper (3).

3. A dehumidification device for PO greenhouse film production according to claim 1, Features: The front end and the rear end of the scraper (3) are respectively rotatably connected to the crossbar of the fixed frame (1), and the scraper (3) is located directly above the material leveling roller (4).

4. A dehumidification device for PO greenhouse film production according to claim 1, Features: The front and rear ends of the tensioning roller (101) are rotatably connected to sliders respectively; a groove is provided on the side opposite to the left vertical rod of the fixed frame (1); the tensioning roller (101) slides in the groove of the vertical rod of the fixed frame (1) via the slider; a tensioning spring (102) is fixed to the lower end of the slider; and the lower end of the tensioning spring (102) is fixedly connected to the fixed frame (1).

5. A dehumidification device for PO greenhouse film production according to claim 1, Features: The front and rear ends of the material leveling roller (4) are rotatably connected to sliding blocks, respectively; a sliding groove is provided on the opposite side of the cross bar of the fixed frame (1); the material leveling roller (4) slides in the sliding groove of the cross bar of the fixed frame (1) through the sliding block; one end of a compression spring (401) is fixed on the opposite side of the sliding block, and the other end of the compression spring (401) is fixedly connected to the fixed frame (1).

6. A dehumidification device for PO greenhouse film production according to claim 1, Features: The condenser (509) is fixed above the inner wall of the condensation box (504), and the air outlet (505) is located below the condenser (509).

7. A dehumidification device for PO greenhouse film production according to claim 1, Features: The guide plate (508) is evenly distributed with a plurality of long strip-shaped through holes that are inclined upward.

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