Film extrusion cooling system

Abstract

The utility model relates to the technical field of thin film processing, and discloses a thin film extrusion cooling system which is characterized in that a thin film main body is immersed and cooled by utilizing a water cooling pool, a water removal mechanism is arranged at the rear part of the water cooling pool, and water on the surface of the thin film main body is removed by laterally scraping through two groups of water removal scraping seats which are oppositely arranged. The two sets of water removal scraping seats are pushed by the thrust springs to be installed on the inclined discharging side of the water cooling pool, under pushing of the thrust springs, the two sets of water removal scraping seats are in a V shape and are tightly attached through the water removal edge strips, water on the surface of a film body can be efficiently scraped, and compared with a traditional single-piece scraping structure, the water removal device has the better water scraping effect; the device can meet the working requirement for removing water on the surfaces of membranes with different thicknesses by adjusting the thrust of a thrust spring, a sectional type blowing drying mechanism is adopted, and an auxiliary heating plate is only arranged on the front portion of a drying box base; after auxiliary heating drying of the thin film body is completed, the thin film body can be rapidly cooled through the cold air section on the rear portion of the drying box base.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of film processing, specifically is a film extrusion cooling system. BACKGROUND

[0002] The film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins is used for packaging and as a coating layer. The proportion of plastic packaging and plastic packaging products in the market is increasing, especially the composite plastic soft packaging, which has been widely used in food, medicine, chemical industry and other fields. These products have brought great convenience to people's life. In the film production process, the film is extruded and formed in a hot melt state, and then cooled and cooled by a cooling system to make the film set.

[0003] The traditional cooling system adopts a water liquid type cooling setting mode, and the film body is cooled and set by being immersed in a water cooling pool. Water liquid may adhere to the surface of the film body after the film body is removed from the pool, which may affect the subsequent processing of the film. The traditional single scraper type water removal structure has poor water removal effect, and in order to dry the water liquid, a hot air drying structure is needed to dry the film body. The traditional hot air drying device is a full section auxiliary heating structure. After the film body is dried, the surface temperature of the film body is high, which may cause the film body to stick together during subsequent winding, and the use is very inconvenient. Therefore, a film extrusion cooling system is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a film extrusion cooling system to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a film extrusion cooling system, which comprises a water cooling mechanism for cooling a film body, a water removal mechanism and a blowing drying mechanism. The water cooling mechanism is used for cooling and setting the film body, and comprises a water cooling pool and a film body guide roller. The film body guide roller is rotatably installed in the interior of the water cooling pool.

[0006] The water removal mechanism is used for scraping water liquid on the surface of the film body. The water removal mechanism comprises a water removal support, a water removal scraper seat, an adjusting bolt column and a thrust spring. The water removal support is installed on the rear inclined discharge side of the water cooling pool. The water removal scraper seats are arranged in pairs. Two groups of water removal scraper seats are installed on the inside of the water removal support on both sides under the cooperation and driving of the adjusting bolt column and the thrust spring.

[0007] The blowing drying mechanism is used for blowing and drying the film body. The blowing drying mechanism comprises a drying box seat, a fan and an auxiliary heating plate. The auxiliary heating plate is only installed in the front section of the interior of the drying box seat.

[0008] As preferred, the water cooling pool is installed at the rear of the extrusion equipment, and the film body guide roller is rotatably installed in the water cooling pool through a rotating shaft.

[0009] As preferred, the water cooling pool is installed at the rear of the extrusion equipment, and the film body guide roller is rotatably installed in the water cooling pool through a rotating shaft.

[0010] As preferred, the water cooling pool is installed at the rear of the extrusion equipment, and the film body guide roller is rotatably installed in the water cooling pool through a rotating shaft.

[0011] As preferred, the water cooling pool is installed at the rear of the extrusion equipment, and the film body guide roller is rotatably installed in the water cooling pool through a rotating shaft.

[0012] As preferred, the water cooling pool is installed at the rear of the extrusion equipment, and the film body guide roller is rotatably installed in the water cooling pool through a rotating shaft.

[0013] As preferred, the water cooling pool is installed at the rear of the extrusion equipment, and the film body guide roller is rotatably installed in the water cooling pool through a rotating shaft.

[0014] The above technical scheme has the following technical effects compared with the prior art.

[0015] The cooling system adopts water cooling working mode, the film body is cooled by immersion in the water cooling pool, and a water removing mechanism is arranged at the rear of the water cooling pool, water on the surface of the film body is removed by two groups of water removing scraping seats arranged oppositely through lateral scraping, the two groups of water removing scraping seats are installed on the inclined discharge side of the water cooling pool by the thrust spring, and when working, the two groups of water removing scraping seats are tightly attached to the water removing edge strip in V shape through the thrust of the thrust spring, so that the water on the surface of the film body can be efficiently scraped, compared with the traditional single-piece scraping structure, the water removing scraping seats have better water removing effect, the device can meet the working requirements of water removing operation on the surface of the film of different thicknesses by adjusting the thrust of the thrust spring, and the segmented air blowing drying mechanism is adopted, the auxiliary heating plate is arranged only at the front of the drying box seat, the film body can be quickly cooled and cooled through the cold air section at the rear of the drying box seat after auxiliary heating and drying of the film body are completed, and subsequent winding work can be facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is the overall working structure schematic diagram of the utility model;

[0018] Figure 2 It is the overall internal working structure schematic diagram of the utility model;

[0019] Figure 3 It is the water removing mechanism three-dimensional structure schematic diagram of the utility model;

[0020] Figure 4 It is the Figure 3 A region structure schematic diagram of the utility model;

[0021] Figure 5 It is the adjusting bolt column and thrust spring installation structure schematic diagram of the utility model;

[0022] Figure 6 It is the water removing scraping seat three-dimensional structure schematic diagram of the utility model.

[0023] Explanation of reference signs: 1, film main body; 2, water cooling mechanism; 21, water cooling pool; 22, film body guide roller; 3, water removal mechanism; 31, water removal support; 32, water removal scraping seat; 33, adjusting bolt column; 34, thrust spring; 35, installation rotating shaft; 36, driving flap; 37, bolt column mounting seat; 38, water removal edge strip; 39, installation edge block; 4, air blowing drying mechanism; 41, drying box seat; 42, fan; 43, auxiliary heating plate; 5, discharge roller; 6, drying support roller; 7, discharge roller. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the specification are only used to understand and read the disclosed content by those skilled in the art, and are not used to limit the conditions that can be implemented by the present application, and therefore do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the disclosed technical content. EMBODIMENT

[0026] Please refer to Figures 1-6 The present application provides a technical solution: a film extrusion cooling system, comprising a water cooling mechanism 2 for cooling the film main body 1, a water removal mechanism 3 and an air blowing drying mechanism 4, the water cooling mechanism 2 is used for cooling and shaping the film main body 1, the water cooling mechanism 2 comprises a water cooling pool 21 and a film body guide roller 22, as shown in the accompanying Figure 1 The water cooling pool 21 is installed at the rear of the extrusion equipment, the inside of the water cooling pool 21 is filled with cooling water, a water cooling type working mode is adopted, the film main body 1 is immersed and cooled by the water cooling pool 21, in order to guide and convey the film main body 1, a discharge roller 5 is arranged at the front feeding side of the water cooling pool 21, the film main body 1 is guided and inclined to enter the inside of the water cooling pool 21 through the discharge roller 5, the film body guide roller 22 is rotatably installed in the inside of the water cooling pool 21 through a rotating shaft, used for conveying and guiding the film main body 1 in the water cooling pool 21, the film main body 1 is guided and inclined to convey and discharge from the rear of the water cooling pool 21 through the film body guide roller 22.

[0027] The water removal mechanism 3 is used to scrape water off the surface of the film body 1. The water removal mechanism 3 includes a water removal support 31, a water removal scraper 32, an adjusting bolt 33, and a thrust spring 34. The water removal support 31 is installed on the inclined discharge side at the rear of the water cooling tank 21. Specifically, see attached... Figure 2 As shown, mounting blocks 39 are fixed on both sides of the dewatering support 31. The dewatering support 31 is installed at an angle on the rear discharge side of the water cooling tank 21 by means of mounting blocks 39 and bolts. In order to scrape off the water on the surface of the membrane body 1, as shown in the attached diagram. Figure 5 As shown, the water removal scraper seats 32 are arranged in pairs. The lower ends of both sets of water removal scraper seats 32 are fixedly installed with mounting shafts 35. The two sets of water removal scraper seats 32 are rotated in a V-shape inside the water removal support 31 through the mounting shafts 35. In order to improve the water removal effect, water removal strips 38 are fixedly installed on the upper ends of both sets of water removal scraper seats 32.

[0028] To provide the pushing force structure for the thrust spring 34, as shown in the attached... Figure 4 As shown, drive flaps 36 are fixed to the ends of both sets of mounting shafts 35. To connect and install the adjusting pins 33, pin mounting seats 37 are fixed to the ends of the dewatering support 31. The adjusting pins 33 are threaded into the inner side of the screw holes opened on the upper part of the pin mounting seats 37. The thrust spring 34 is pressed against the upper part of the drive flaps 36 under the pressure of the adjusting pins 33. With the provided elastic thrust, the two sets of dewatering scrapers 32 are installed in opposite positions on both sides of the inside of the dewatering support 31 under the combined drive of the adjusting pins 33 and the thrust spring 34. During operation, the two sets of dewatering scrapers 32 are V-shaped and tightly attached to the dewatering strips 38 under the push of the thrust spring 34, which can efficiently scrape the water on the surface of the film body 1. Compared with the traditional single-piece scraping structure, it has a better water scraping effect. By adjusting the thrust of the thrust spring 34, the device can meet the working requirements of water removal operations on the surface of film sheets of different thicknesses.

[0029] The air-blowing drying mechanism 4 is used for air-blowing drying of the film body 1. The air-blowing drying mechanism 4 includes a drying chamber base 41, a fan 42, and an auxiliary heating plate 43. To facilitate the movement and transportation of the film body 1, as shown in the attached diagram... Figure 2As shown, the drying support rollers 6 are arranged on both sides of the drying box seat 41, and the film body 1 is horizontally guided into the interior of the drying box seat 41 under the guidance and support of the drying support rollers 6. The fan 42 is installed in communication with the air outlet in the interior of the drying box seat 41, and is used for blowing and conveying driving in the interior of the drying box seat 41. The auxiliary heating plate 43 is a sheet type PTC heater, and the auxiliary heating plate 43 is arranged in pairs. Two groups of auxiliary heating plates 43 are respectively fixedly installed on the upper and lower sides of the front part of the inner cavity of the drying box seat 41, and are used for blowing and heating in the front part of the interior of the drying box seat 41. The auxiliary heating plate 43 is only installed in the front part of the interior of the drying box seat 41, and a segmented blowing and drying mechanism 4 is adopted. The auxiliary heating plate 43 is only arranged on the front part of the drying box seat 41. After the auxiliary heating and drying of the film body 1 are completed, the film body 1 can be quickly cooled and cooled through the cold air section at the rear part of the drying box seat 41, which is beneficial to the subsequent winding work. In order to conveniently guide and discharge the film body 1, the discharge roller 7 is arranged on the rear part of the drying box seat 41.

[0030] The working principle or structural principle is as follows. Before work, according to the thickness of the processed film body 1, the lower thrust of the thrust spring 34 is adjusted by rotating the adjusting bolt 33 on the upper part of the bolt column mounting seat 37, so as to ensure that the clamping thrust perfectly matches the water scraping work requirement of the film body 1. During work, the extruded and stretched film body 1 is guided and conveyed into the interior of the water cooling pool 21 through the discharge roller 5 and the film body guide roller 22. After being cooled and shaped in the water cooling pool 21, the film body 1 is obliquely conveyed out of the water cooling pool 21 under the cooperation and guidance of the film body guide roller 22 and the drying support roller 6. When the film body 1 moves obliquely, the film body 1 penetrates through the water removal support 31. The two groups of water removal scraping seats 32 in the water removal support 31 are pushed to be in V-shaped contact with the two sides of the film body 1 through the water removal edge strip 38 under the pushing of the thrust spring 34. The water on the surface of the film body 1 can be efficiently scraped off through the water removal edge strip 38 during movement. The scraped water is guided to fall back into the interior of the water cooling pool 21 through the V-shaped structure and is reused. Then, the film body 1 is horizontally guided into the interior of the drying box seat 41 through the conveying and support of the two groups of drying support rollers 6. In the interior of the drying box seat 41, the external air is sucked in through the fan 42 and is blown to the two sides of the film body 1 from the blowing outlets on the upper and lower sides of the interior of the drying box seat 41 after being divided. In the front part of the interior of the drying box seat 41, the air is heated and warmed through the auxiliary heating plate 43 and is blown to the two sides of the film body 1. The drying treatment of the two sides of the film body 1 is completed through auxiliary heating blowing. In the rear part of the interior of the drying box seat 41, the external cold air is directly blown to the two sides of the film body 1. The cooling and cooling of the film body 1 are quickly completed through cold air blowing. Then, the film body 1 is conveyed and discharged into the next level of processing equipment through the guidance of the discharge roller 7.

[0031] In summary, the cooling system adopts water cooling working mode, the film body 1 is immersed and cooled by the water cooling pool 21, the water removal mechanism 3 is arranged at the rear of the water cooling pool 21, the water on the surface of the film body 1 is removed by the two groups of water removal scraping seats 32 arranged oppositely through lateral scraping, the two groups of water removal scraping seats 32 are installed on the inclined discharge side of the water cooling pool 21 and are pushed by the thrust spring 34, when working, the two groups of water removal scraping seats 32 are tightly attached to the water on the surface of the film body 1 through the V-shaped water removal edge strip 38 and can efficiently scrape the water, compared with the traditional single-piece scraping structure, the water removal scraping seats 32 have better water scraping effect, the device can meet the working requirements of water removal operation on the surface of the film with different thicknesses by adjusting the thrust of the thrust spring 34, and the segmented air blowing and drying mechanism 4 is adopted, the auxiliary heating plate 43 is arranged only at the front of the drying box seat 41, after the auxiliary heating and drying of the film body 1 are completed, the film body 1 can be quickly cooled and cooled through the cold air section at the rear of the drying box seat 41, and the subsequent winding work can be carried out.

[0032] Those skilled in the art can understand that the features described in various embodiments and / or claims of the present application can be combined or / and combined, even if such combinations or combinations are not explicitly described in the present application. In particular, the features described in various embodiments and / or claims of the present application can be combined and / or combined without departing from the spirit and teachings of the present application. All these combinations and / or combinations fall within the scope of the present application.

Claims

1. A film extrusion cooling system, comprising a water cooling mechanism (2), a water removal mechanism (3), and an air drying mechanism (4) for cooling a film body (1), characterized in that: The water cooling mechanism (2) is used to cool and shape the film body (1). The water cooling mechanism (2) includes a water cooling pool (21) and a film guide roller (22). The film guide roller (22) is rotatably installed inside the water cooling pool (21). The water removal mechanism (3) is used to scrape water off the surface of the film body (1). The water removal mechanism (3) includes a water removal support (31), a water removal scraper (32), an adjusting bolt (33), and a thrust spring (34). The water removal support (31) is installed on the rear inclined discharge side of the water cooling tank (21). The water removal scrapers (32) are arranged in pairs. The two sets of water removal scrapers (32) are installed in opposite positions on both sides of the inside of the water removal support (31) under the cooperative drive of the adjusting bolt (33) and the thrust spring (34). The blowing drying mechanism (4) is used for blowing and drying the film body (1). The blowing drying mechanism (4) includes a drying chamber base (41), a fan (42) and an auxiliary heating plate (43). The auxiliary heating plate (43) is only installed in the front part of the interior of the drying chamber base (41).

2. The film extrusion cooling system according to claim 1, characterized in that: The water cooling tank (21) is installed at the rear of the extrusion equipment, and the film guide roller (22) is rotatably installed inside the water cooling tank (21) via a rotating shaft.

3. The film extrusion cooling system according to claim 2, characterized in that: The front feed side of the water cooling tank (21) is provided with a discharge roller (5). The film body (1) is guided by the discharge roller (5) to enter the interior of the water cooling tank (21) at an incline. The film body (1) is guided by the film guide roller (22) to be discharged at an incline from the rear of the water cooling tank (21).

4. A film extrusion cooling system according to claim 3, characterized in that: The water removal support (31) has mounting blocks (39) fixed on both sides. The water removal support (31) is installed at an angle on the rear discharge side of the water cooling pool (21) by mounting blocks (39) and bolts.

5. A film extrusion cooling system according to claim 4, characterized in that: The lower ends of both sets of water removal scraper seats (32) are fixedly installed with mounting shafts (35). The two sets of water removal scraper seats (32) are rotated in a V-shape inside the water removal support (31) through the mounting shafts (35). The upper ends of both sets of water removal scraper seats (32) are fixedly installed with water removal edge strips (38).

6. A film extrusion cooling system according to claim 5, characterized in that: Both sets of mounting shafts (35) have drive flaps (36) fixed to their ends. The end of the water removal support (31) has a bolt mounting seat (37) fixedly installed. The adjusting bolt (33) is threaded into the inner side of the bolt hole opened on the upper part of the bolt mounting seat (37). The thrust spring (34) is pressed against the upper part of the drive flap (36) by the adjusting bolt (33).

7. A film extrusion cooling system according to claim 1, characterized in that: Drying support rollers (6) are provided on both the front and rear sides of the drying chamber base (41). The film body (1) enters the interior of the drying chamber base (41) horizontally under the guidance and support of the drying support rollers (6). The fan (42) is connected to the air outlet inside the drying chamber base (41). The auxiliary heating plates (43) are arranged in pairs. The two sets of auxiliary heating plates (43) are respectively fixedly installed on the upper and lower sides of the front part of the inner cavity of the drying chamber base (41). The discharge rollers (7) are provided on the discharge side of the rear part of the drying chamber base (41).

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