Cooling device for raw material extrusion of PC film

Abstract

A cooling device for PC film raw material extrusion includes a tank and a dewatering assembly. Adjustable guide rollers are installed at both the front and rear ends of the tank. A circulating drain pipe is provided at the feed end of the tank, and a circulating water inlet pipe is provided at the discharge end. The dewatering assembly is located above the discharge end of the tank and includes a water receiving trough and a dewatering air knife. The water receiving trough is mounted on the tank via a support frame, and its drain outlet communicates with the inside of the tank. Guide support rollers are installed at both the front and rear ends of the water receiving trough, and the dewatering air knife is located directly above the space between the two guide support rollers. The advantages of this invention are: the cooling and dewatering process involves two stages of dewatering via a dual-channel air knife, combined with dewatering cotton, resulting in more thorough water stain removal.

Description

Technical Field

[0001] This utility model relates to the technical field of PC film production equipment, specifically to a cooling device for PC film raw material extrusion. Background Technology

[0002] The raw material for PC film production is a mixture of resin and various auxiliary materials, plasticized, and then granulated to form the PC film. During the plasticizing and cooling process, most of the water stains carried out from the water tank are removed by air knives. However, the existing air knives only have one air outlet, which makes the water stain removal effect less than ideal. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a cooling device for PC film raw material extrusion.

[0004] This utility model includes a tank and a dewatering assembly. Adjustable guide rollers are provided at the front and rear ends of the tank. A circulating drain pipe is provided at the feed end of the tank, and a circulating water inlet pipe is provided at the discharge end of the tank. The dewatering assembly is located above the discharge end of the tank. The dewatering assembly includes a water receiving trough and a dewatering air knife. The water receiving trough is installed on the tank through a support frame. The drain outlet of the water receiving trough is connected to the inside of the tank. Guide support rollers are provided at the front and rear ends of the water receiving trough. The dewatering air knife is located directly above the two guide support rollers.

[0005] The adjustable guide roller is equipped with a suspension plate at both ends. The top end of the suspension plate is equipped with an L-shaped fixing plate that matches the side plate of the tank. The adjustable guide roller is movably inserted into the tank through the two suspension plates.

[0006] A limiting support plate is provided between the two suspension plates.

[0007] The limiting support plate is an elastic metal plate. The inner side of the L-shaped fixing plate is provided with a positioning groove that cooperates with the limiting support plate. The end of the limiting support plate is located in the positioning groove.

[0008] The water-removing air knife has a crescent-shaped structure with its opening facing downwards. Air outlets are provided on both sides of the opening of the crescent-shaped structure, and an air inlet pipe is provided in the middle of one end of the crescent-shaped structure.

[0009] The water receiving tank is equipped with a water-removing sponge roller and a water stain extrusion roller that cooperates with the water-removing sponge roller. The water-removing sponge roller is located in front of the guide support roller at the rear end.

[0010] The advantages of this invention are: the cooling and water stain removal process involves two stages of water removal using a dual-channel air knife, combined with water-removing cotton, resulting in more thorough water stain removal. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the adjustable guide roller structure.

[0013] Figure 3 This is a schematic diagram of the water removal component. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0016] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model. Furthermore, if terms such as "first" or "second" appear in the description of this utility model, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0017] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] As shown in the attached figure, this utility model includes a tank body 40 and a dewatering assembly. Adjustable guide rollers 42 are respectively provided at the front and rear ends of the tank body 40. A circulating drain pipe 43 is provided at the feed end of the tank body 40, and a circulating water inlet pipe 44 is provided at the discharge end of the tank body 40. The dewatering assembly is located above the discharge end of the tank body 40. The dewatering assembly includes a water receiving tank 45 and a dewatering air knife 46. The water receiving tank 45 is installed on the tank body 40 through a support frame. The drain outlet of the water receiving tank 45 is connected to the inside of the tank body 40. Guide support rollers 47 are respectively provided at the front and rear ends of the water receiving tank 45. The dewatering air knife 46 is located directly above the two guide support rollers 47.

[0019] The plasticized extruded filaments enter the tank 40 for cooling and shaping. The filaments pass sequentially under the adjustable guide roller 42, which has annular positioning grooves on its surface. Each groove corresponds to one filament, ensuring even separation between filaments, preventing them from sticking together, and facilitating rapid heat removal. Water is filled into the tank 40, with the water level exceeding the adjustable guide roller 42. The tank 40 is connected to an external cooling water pool; water discharged from the circulating drain pipe 43 enters the cooling water pool, and then the circulating inlet pipe 44 pumps cooled water from the cooling water pool into the tank 40. The water flows from the discharge end to the feed end of the tank 40, thus carrying away heat from the raw material.

[0020] After cooling, the material enters the dewatering assembly. Two guide support rollers 47 on the water receiving tank 45 guide and support the material. The guide support rollers 47 are provided with annular positioning grooves corresponding to the adjustable guide rollers 42. The dewatering air knife 46 blows air downwards to blow the water stains attached to the material into the water receiving tank 45. The water in the water receiving tank 45 then flows back into the tank body 40.

[0021] Furthermore, the adjustable guide roller 42 is provided with suspension plates 50 at both ends, and an L-shaped fixing plate 51 that cooperates with the side plate of the trough 40 is provided at the top end of the suspension plate 50. The adjustable guide roller 42 is movably inserted into the trough 40 through the two suspension plates 50. The L-shaped fixing plate 51 is directly fastened to the top of the side plate of the trough 40, making installation and disassembly convenient and quick.

[0022] Furthermore, a limiting support plate 52 is provided between the two suspension plates 50. The limiting support plate 52 is used to spread the two L-shaped fixing plates 51 to both sides, so as to fix them to the groove 40 and prevent them from loosening.

[0023] The limiting support plate 52 is an elastic metal plate. The inner side of the L-shaped fixing plate 51 is provided with a positioning groove that cooperates with the limiting support plate 52. The end of the limiting support plate 52 is located in the positioning groove. The length of the limiting support plate 52 is greater than the width of the groove 40. When in use, the limiting support plate 52 is bent so that both ends are located in the corresponding positioning grooves. The limiting support plate 52 is stretched to both sides by its own elasticity, and the L-shaped fixing plate 51 is tightened on the groove 40.

[0024] Preferably, the dewatering air knife 46 has a crescent-shaped structure with its opening facing downwards. Air outlets are located on both sides of the crescent-shaped opening, and an air inlet pipe 53 is located in the middle of one end of the crescent-shaped structure. The air inlet pipe 53 sends air into the dewatering air knife 46 via a high-pressure blower. The air is then split into two halves within the dewatering air knife 46 and blown out from the two air outlets, spraying the material as it passes through, thereby blowing off water stains. The material undergoes two spray cycles when passing through the dewatering air knife 46, effectively removing water stains.

[0025] Furthermore, the water receiving tank 45 is provided with a water-removing sponge roller 55 and a water stain extrusion roller 56 that cooperates with the water-removing sponge roller 55. The water-removing sponge roller 55 is located in front of the rear guide support roller 47.

[0026] The structure of the dewatering sponge roller 55 is that a layer of water-absorbing sponge is wrapped around the roller body. The dewatering sponge roller 55 is located between the air outlet on the right side of the air knife and the guide support roller 47 on the right side. After the filamentous material passes through the air knife to blow away the water stains, it passes over the dewatering sponge roller 55. The filamentous material comes into contact with the dewatering sponge roller 55. When it passes through, the dewatering sponge roller 55 further absorbs the water stains attached to the bottom surface of the filamentous material.

[0027] In this case, the dewatering sponge roller 55 and the water stain extrusion roller 56 are connected by gear transmission. A rotating handle is provided at one end of the water stain extrusion roller 56. The operator drives the water stain extrusion roller 56 to rotate intermittently. The roller surface of the water stain extrusion roller 56 is squeezed against the roller surface of the dewatering sponge roller 55, thereby squeezing out the water stains adsorbed on the dewatering sponge roller 55, so that the sponge layer on the dewatering sponge roller 55 maintains good water absorption performance.

Claims

1. A cooling device for PC film raw material extrusion, characterized in that... The tank (40) includes a trough and a dewatering assembly. Adjustable guide rollers (42) are provided at the front and rear ends of the trough (40). A circulating drain pipe (43) is provided at the feed end of the trough (40), and a circulating water inlet pipe (44) is provided at the discharge end of the trough (40). The dewatering assembly is located above the discharge end of the trough (40). The dewatering assembly includes a water receiving trough (45) and a dewatering air knife (46). The water receiving trough (45) is installed on the trough (40) through a support frame. The drain outlet of the water receiving trough (45) is connected to the inside of the trough (40). Guide support rollers (47) are provided at the front and rear ends of the water receiving trough (45). The dewatering air knife (46) is located directly above the two guide support rollers (47).

2. The cooling device for PC film raw material extrusion according to claim 1, characterized in that... The adjustable guide roller (42) is provided with a suspension plate (50) at both ends. The top end of the suspension plate (50) is provided with an L-shaped fixing plate (51) that cooperates with the side plate of the trough (40). The adjustable guide roller (42) is movably inserted into the trough (40) through the two suspension plates (50).

3. The cooling device for PC film raw material extrusion according to claim 2, characterized in that A limiting support plate (52) is provided between the two suspension plates (50).

4. A cooling device for PC film raw material extrusion according to claim 3, characterized in that... The limiting support plate (52) is an elastic metal plate. The inner side of the L-shaped fixing plate (51) is provided with a positioning groove that cooperates with the limiting support plate (52). The end of the limiting support plate (52) is located in the positioning groove.

5. A cooling device for PC film raw material extrusion according to claim 1, characterized in that... The water-removing air knife (46) is a crescent-shaped structure with the opening facing downwards. Air outlets are provided on both sides of the opening of the crescent-shaped structure, and an air inlet pipe (53) is provided in the middle of one end of the crescent-shaped structure.

6. A cooling device for PC film raw material extrusion according to claim 1, characterized in that... The water receiving tank (45) is equipped with a water-removing sponge roller (55) and a water stain extrusion roller (56) that cooperates with the water-removing sponge roller (55). The water-removing sponge roller (55) is located in front of the rear guide support roller (47).

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