Casting piece equipment convenient to clean and used for PET printing film production

Abstract

The utility model discloses a piece casting device convenient to clean and used for PET printing film production, relates to the technical field of piece casting devices, and aims to solve the problem that in the prior art, in the forming process of a PET printing film casting piece, a large number of oligomers can be formed on the edges of the two sides of a film, and the production quality of the PET printing film is affected. A cooling roller is arranged in the equipment box body, a roller frame is arranged on one side of the cooling roller, a wiping roller is rotationally installed in the roller frame, an air cylinder is fixedly installed on one side of the equipment box body, and the piston rod end of the air cylinder extends into the equipment box body and is fixedly connected with the roller frame through a screw. A second motor is fixedly installed at the front end of the roller frame, the output end of the second motor is fixedly connected with a wiping roller, a dirt suction head is arranged below the wiping roller, a vertical plate is fixedly installed on one side below the roller frame, a transverse plate is fixedly installed below the vertical plate, and the transverse plate is fixedly connected with the dirt suction head through a screw.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet casting equipment, in particular to sheet casting equipment for producing PET printing films which is easy to clean. Background Art

[0002] PET printing film, also known as high temperature resistant polyester film, is made of polyethylene terephthalate as raw material, extruded into thick sheets, and then biaxially stretched to form a film material. It is a colorless, transparent, glossy film with excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high and low temperature resistance, chemical resistance, oil resistance, good air tightness and fragrance retention. ET printing film is one of the commonly used barrier composite film substrates with good printability. At present, it has been used as a replacement product by more and more printing industries and is widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging decoration, screen protection, etc.

[0003] The casting process is required in the reproduction process of PET printing film. During the casting process of PET printing film, the molten raw material of PET printing film melts at high temperature and flows out from the die head, and is cast onto the cooling roller to form a film. Due to the low temperature in the casting area, the oligomers in the molten raw material are easily accumulated on the die head lip. When there are more oligomers accumulated on the lip, they will flow onto the casting equipment with the molten raw material, and a large amount of oligomers will be formed on the edges of both sides of the film, affecting the production quality of the PET printing film. Therefore, the market urgently needs to develop a casting equipment for PET printing film production that is easy to clean to help people solve the existing problems. Utility Model Content

[0004] The purpose of the utility model is to provide a casting device for PET printing film production which is easy to clean, so as to solve the problem raised in the above-mentioned background technology that a large amount of oligomers will be formed on both sides of the film edge during the PET printing film casting process, thereby affecting the production quality of the PET printing film.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a casting device for producing PET printing film that is easy to clean, comprising an equipment housing and a die head, a cooling roller is arranged inside the equipment housing, a roller frame is arranged on one side of the cooling roller, a wiping roller is rotatably installed inside the roller frame, a cylinder is fixedly installed on one side of the equipment housing, the piston rod end of the cylinder extends into the interior of the equipment housing and is fixedly connected to the roller frame by screws, a second motor is fixedly installed at the front end of the roller frame, and the output end of the second motor is fixedly connected to the wiping roller.

[0006] Preferably, a suction head is provided under the wiping roller, a vertical plate is fixedly installed on one side below the roller frame, a horizontal plate is fixedly installed below the vertical plate, the horizontal plate and the suction head are fixedly connected by screws, a delivery hose is fixedly installed below the horizontal plate, and the delivery hose is connected to the suction head.

[0007] Preferably, a bottom box is fixedly installed at the bottom of the equipment box, the lower end of the delivery hose is fixedly connected to the bottom box, and a ventilation grille is fixedly installed on one side of the equipment box, and the ventilation grille is connected to the bottom box.

[0008] Preferably, a partition is fixedly installed inside the bottom box, a guide plate is fixedly installed inside the bottom box along one side of the partition, a dehumidifier is fixedly installed between the partition and the guide plate, and a fan is fixedly installed inside the bottom box along the other side of the partition.

[0009] Preferably, conveying pipes are symmetrically fixedly installed at the front and rear ends of the cooling roller, and both of the conveying pipes extend to the outside of the equipment case and are rotatably connected to the equipment case through bearings. A worm gear is fixedly installed on the outer side of the conveying pipe at the front end, and a worm is meshingly connected to one side of the worm gear. A mounting plate is rotatably installed below the worm, and the mounting plate is fixedly connected to the equipment case by screws. A first motor is fixedly installed below the mounting plate, and the output end of the first motor is fixedly connected to the worm.

[0010] Preferably, an inner roller body is provided inside the cooling roller, a flow cavity is provided inside the cooling roller along the outer side of the inner roller body, one end of the conveying pipe extends into the flow cavity, connecting columns are symmetrically fixedly installed on both sides of the inner roller body, and the connecting columns are welded to the cooling roller.

[0011] Preferably, a guide roller is rotatably mounted on one side of the interior of the device box, and a sealing cover is fixedly mounted on the front end surface of the device box by screws.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model arranges a roller frame on one side of the cooling roller, a wiping roller is rotatably installed inside the roller frame, and a second motor for driving the wiping roller to rotate is arranged at the front end of the roller frame, so that when the raw material melt of the PET printing film is cast onto the cooling roller through the die head to form a film for casting, the wiping roller is driven to contact and rotate with the film, so that the oligomers on the edge of the PET printing film can be wiped and removed, the oligomers can be removed, the surface cleanliness of the PET printing film can be increased, the quality of the PET printing film casting can be improved, and the practicality of the casting equipment can be increased.

[0014] 2. The utility model arranges a suction head under the wiping roller, and the suction head is connected to the bottom box through a conveying hose. Then, during the process of wiping and removing the oligomers, the fan is started to extract the air inside the bottom box to make the inside of the bottom box a negative pressure state, so that the suction head can absorb the oligomers on the surface of the wiping roller, realize the ability to clean the wiping roller, and is conducive to the stable operation of the wiping roller.

[0015] 3. The utility model sets a flow cavity inside the cooling roller, and one end of the conveying pipe extends into the flow cavity. Then, during the casting process of the PET printing film, one conveying pipe is connected to the water supply equipment, and the other conveying pipe is connected to the drainage pipeline, so that cold water can be continuously conveyed to the inside of the cooling roller, so that the cooling roller can maintain a stable low temperature, which is beneficial to the stable casting of the PET printing film and increases the practicality of the casting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a casting device for producing PET printing film that is easy to clean according to the utility model;

[0017] Figure 2 It is a cross-sectional view of the equipment box of the utility model;

[0018] Figure 3 It is a cross-sectional view of the roller frame of the utility model;

[0019] Figure 4 It is a cross-sectional view of the bottom box of the utility model;

[0020] Figure 5 It is a side sectional view of the cooling roller of the present invention.

[0021] In the figure: 1. Equipment box; 2. Die head; 3. Sealing cap; 4. Delivery pipe; 5. Worm gear; 6. Worm; 7. Mounting plate; 8. First motor; 9. Cooling roller; 10. Export roller; 11. Cylinder; 12. Roller frame; 13. Wiping roller; 14. Second motor; 15. Bottom box; 16. Ventilation grille; 17. Horizontal plate; 18. Vertical plate; 19. Suction head; 20. Delivery hose; 21. Partition; 22. Guide plate; 23. Dehumidifier; 24. Fan; 25. Flow chamber; 26. Inner roller body; 27. Connecting column. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-5The utility model provides an embodiment: a casting device for producing PET printing film that is easy to clean, comprising an equipment box 1 and a die head 2, the die head 2 is connected to the raw material melting extrusion device of the PET printing film, a cooling roller 9 is arranged inside the equipment box 1, a roller frame 12 is arranged on one side of the cooling roller 9, a wiping roller 13 is rotatably installed inside the roller frame 12, a cylinder 11 is fixedly installed on one side of the equipment box 1, the piston rod end of the cylinder 11 extends into the interior of the equipment box 1 and is fixedly connected to the roller frame 12 by screws, a second motor 14 is fixedly installed at the front end of the roller frame 12, and the output end of the second motor 14 is fixedly connected to the wiping roller 13.

[0024] When in use, when the raw material melt of the PET printing film is cast through the die head 2 onto the cooling roller 9 to form a thin film for casting, the wiping roller 13 is driven to contact and rotate with the film, so that the oligomers on the edge of the PET printing film can be wiped and removed, thereby increasing the cleanliness of the PET printing film surface, improving the quality of the PET printing film casting, and increasing the practicality of the casting equipment.

[0025] Furthermore, a dirt suction head 19 is provided below the wiping roller 13, a vertical plate 18 is fixedly installed on one side below the roller frame 12, a horizontal plate 17 is fixedly installed below the vertical plate 18, the horizontal plate 17 is fixedly installed with the dirt suction head 19 by screws, a delivery hose 20 is fixedly installed below the horizontal plate 17, and the delivery hose 20 is connected with the dirt suction head 19, a partition 21 is fixedly installed inside the bottom box 15, a through hole is provided at the upper end of the partition 21 to facilitate the circulation of air, a guide plate 22 is fixedly installed along one side of the partition 21 inside the bottom box 15, a dehumidifier 23 is fixedly installed between the partition 21 and the guide plate 22 to facilitate dehumidification of the air, a fan 24 is fixedly installed along the other side of the partition 21 inside the bottom box 15, by starting the fan 24, the air inside the bottom box 15 is extracted to make the inside of the bottom box 15 in a negative pressure state, so that the dirt suction head 19 can absorb the oligomers on the surface of the wiping roller 13, so that the wiping roller 13 can work continuously.

[0026] Furthermore, a bottom box 15 is fixedly installed at the bottom of the equipment box 1, and the lower end of the delivery hose 20 is fixedly connected to the bottom box 15. A ventilation grille 16 is fixedly installed on one side of the equipment box 1, and the ventilation grille 16 is connected to the bottom box 15 to facilitate the discharge of air in the bottom box 15 to the outside.

[0027] Furthermore, the front and rear ends of the cooling roller 9 are symmetrically fixedly installed with conveying pipes 4, both of which extend to the outside of the equipment case 1 and are rotatably connected to the equipment case 1 through bearings. Among the two conveying pipes 4, one conveying pipe 4 is connected to the water supply pipe of the water supply equipment through a rotating joint, and the other conveying pipe 4 is connected to the drainage pipeline through a rotating joint, so that cold water can be continuously conveyed to the inside of the cooling roller 9, so that the cooling roller can be stably maintained at a low temperature, which is conducive to the stable casting of the PET printing film. A worm gear 5 is fixedly installed on the outer side of the conveying pipe 4 at the front end, and a worm 6 is meshingly connected to one side of the worm gear 5. A mounting plate 7 is rotatably installed below the worm 6, and the mounting plate 7 is fixedly connected to the equipment case 1 by screws. A first motor 8 is fixedly installed below the mounting plate 7, and the output end of the first motor 8 is fixedly connected to the worm 6, so that the conveying pipe 4 can drive the cooling roller 9 to rotate by starting the first motor 8.

[0028] Furthermore, an inner roller body 26 is provided inside the cooling roller 9, and a flow cavity 25 is provided inside the cooling roller 9 along the outer side of the inner roller body 26. One end of the conveying pipe 4 extends into the flow cavity 25. Connecting columns 27 are symmetrically fixedly installed on both sides of the inner roller body 26, and the connecting columns 27 are welded and connected to the cooling roller 9, so that by conveying cold water into the flow cavity 25, the low temperature of the cooling roller 9 can be maintained, which is beneficial to the stable casting operation of the PET printing film.

[0029] Furthermore, a guide roller 10 is rotatably installed on one side of the interior of the equipment box 1 to facilitate the output of the PET printed film after casting. A cover 3 is fixedly installed on the front end surface of the equipment box 1 by screws, and a cleaning cover is provided on the front end surface of the bottom box 15. By removing the cover 3 and the cleaning cover, the interior of the bottom box 15 can be cleaned conveniently, thereby increasing practicality.

[0030] Working principle: When in use, the external water supply equipment continuously delivers cold water to the cooling roller 9 through the delivery pipe 4 and outputs it through another delivery pipe 4, so that the cooling roller 9 maintains a low temperature. The raw material melt of the PET printing film is cast onto the cooling roller 9 through the die head 2 to form a thin film for casting. The roller frame 12 is driven by the cylinder 11 to drive the wiping roller 13 to contact the film and drive the wiping roller 13 to rotate by starting the second motor 14, so that the oligomers on the edge of the PET printing film are wiped and removed. At the same time, the fan 24 is started to extract the air inside the bottom box 15 to make the inside of the bottom box 15 in a negative pressure state, so that the suction head 19 can absorb the oligomers on the surface of the wiping roller 13, so that the wiping roller 13 can continue to work, and the PET printing film after casting is output to the subsequent winding equipment from above the lead-out roller 10.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A casting device for producing PET printing film that is easy to clean, comprising a device housing (1) and a die head (2), characterized in that: A cooling roller (9) is arranged inside the equipment housing (1), a roller frame (12) is arranged on one side of the cooling roller (9), a wiping roller (13) is rotatably mounted inside the roller frame (12), a cylinder (11) is fixedly mounted on one side of the equipment housing (1), a piston rod end of the cylinder (11) extends into the interior of the equipment housing (1) and is fixedly connected to the roller frame (12) by screws, a second motor (14) is fixedly mounted at the front end of the roller frame (12), and an output end of the second motor (14) is fixedly connected to the wiping roller (13); A dirt suction head (19) is arranged below the wiping roller (13); a vertical plate (18) is fixedly installed on one side below the roller frame (12); a horizontal plate (17) is fixedly installed below the vertical plate (18); the horizontal plate (17) and the dirt suction head (19) are fixedly connected by screws; a delivery hose (20) is fixedly installed below the horizontal plate (17), and the delivery hose (20) is connected to the dirt suction head (19); A bottom box (15) is fixedly installed at the bottom of the equipment box (1), the lower end of the delivery hose (20) is fixedly connected to the bottom box (15), and a ventilation grille (16) is fixedly installed on one side of the equipment box (1), and the ventilation grille (16) is connected to the bottom box (15); A partition (21) is fixedly installed inside the bottom box (15), a guide plate (22) is fixedly installed inside the bottom box (15) along one side of the partition (21), a dehumidifier (23) is fixedly installed between the partition (21) and the guide plate (22), and a fan (24) is fixedly installed inside the bottom box (15) along the other side of the partition (21).

2. The easy-to-clean casting equipment for producing PET printing films according to claim 1, characterized in that: The front and rear ends of the cooling roller (9) are symmetrically fixedly installed with conveying pipes (4), both of which extend to the outside of the equipment case (1) and are rotatably connected to the equipment case (1) through bearings. A worm gear (5) is fixedly installed on the outer side of the conveying pipe (4) at the front end, and a worm (6) is meshingly connected to one side of the worm gear (5). A mounting plate (7) is rotatably installed below the worm (6), and the mounting plate (7) is fixedly connected to the equipment case (1) by screws. A first motor (8) is fixedly installed below the mounting plate (7), and the output end of the first motor (8) is fixedly connected to the worm (6).

3. The easy-to-clean casting equipment for producing PET printing films according to claim 2, characterized in that: An inner roller body (26) is arranged inside the cooling roller (9), and a flow cavity (25) is arranged inside the cooling roller (9) along the outer side of the inner roller body (26). One end of the conveying pipe (4) extends into the flow cavity (25), and connecting columns (27) are symmetrically fixedly installed on both sides of the inner roller body (26), and the connecting columns (27) are welded to the cooling roller (9).

4. The easy-to-clean casting equipment for producing PET printing films according to claim 1, characterized in that: A guide roller (10) is rotatably mounted on one side of the interior of the device housing (1), and a sealing cover (3) is fixedly mounted on the front end surface of the device housing (1) by means of screws.

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