Anti-puncture skin film co-extrusion equipment

Abstract

The utility model discloses anti-puncture skin film co-extrusion equipment, and relates to the technical field of co-extrusion film production, the anti-puncture skin film co-extrusion equipment comprises a rack, the middle parts of the two sides of the rack are provided with movable pipes through bearings in a penetrating manner, a cooling roller is fixedly arranged between the two movable pipes, and the top end of the rack is fixedly provided with an extrusion die. According to the utility model, the rack is arranged, the rotatable cooling roller is arranged in the rack, the cooling roller is arranged at the bottom end of the extrusion die, a film can move along with the cooling roller after being extruded, the fixed cylinder is arranged in the cooling roller, and the guide plate with the spiral structure is arranged between the fixed cylinder and the cooling roller; the air draft fans are arranged at the two ends of the cooling roller, and the two sets of air draft fans are matched, so that air can circulate between the cooling roller and the fixed cylinder, the heat dissipation effect on a film on the surface of the cooling roller can be achieved, the film can move under the adhesion action of the surface of the cooling roller when not completely formed, and the cooling forming effect of the film is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of co-extrusion film production, in particular to a puncture-resistant body-fitting film co-extrusion device. Background Art

[0002] In the process of film processing, one raw material is extruded onto another film that has been made, or different types of films that have been made are bonded together to form a multilayer film. This product is called a composite film. Most of the materials of composite films are plastics, but paper, metal foil (usually aluminum) or fabric can also be used. The basic requirement of composite films is that there must be good adhesion between layers to ensure the overall mechanical properties of the package. In addition, composite films are mostly used for food packaging. Adhesives must be used in the processing of composite films, and the selection of solvents and bonding processes must meet the corresponding hygiene standards. Co-extruded films have most of the characteristics of composite films, but there is one difference, that is, all layers of co-extruded films are extruded at the same time, so there will be no other non-plastic materials such as aluminum foil and paper.

[0003] In the existing production process, the co-extruded film is extruded by setting two extrusion rollers. Therefore, the extrusion force between the two extrusion rollers plays a key role in the preparation of the co-extruded film, and there is still a large amount of heat that needs to be volatilized in the film after extrusion. In the existing production process, it is naturally cooled and formed through a longer production line, and the film after production has a larger shape when it is just formed. Under the pulling force of the long production line and the winding roller, the tension of the front end film has a certain difference, which can easily lead to differences in the film thickness during production and winding, affecting the subsequent performance.

[0004] Therefore, it is necessary to invent a puncture-resistant body-fitting film co-extrusion device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a puncture-resistant body-fitting film co-extrusion device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a puncture-resistant body-fitting film co-extrusion device, comprising a frame, movable tubes are provided through the middle parts of both sides of the frame through bearings, a cooling roller is fixedly provided between the two movable tubes, an extrusion die is fixedly provided at the top of the frame, a fixed cylinder is fixedly provided inside the cooling roller, and the two ends of the fixed cylinder are respectively fixedly connected to the two movable tubes, a plurality of through grooves are provided around one end of the outer wall of the movable tube close to the fixed cylinder, an air guide block is fixedly provided at one end of the inner part of the movable tube, and the air guide block is provided in a hemispherical structure, a guide plate with a spiral structure is provided around the outer wall of the fixed cylinder, and the guide plate is fitted with the inner wall of the cooling roller, a plurality of heat-conducting blocks are provided around the inner wall of the cooling roller, and the heat-conducting blocks are fixedly provided on the outer side of the guide plate, an exhaust fan is movably provided at one end of the two movable tubes through bearings, and the rotation directions of the two groups of exhaust fans are opposite.

[0007] Preferably, a plurality of connecting ears are arranged around the outer side wall of the exhaust fan, and the connecting ears are fixed to the outer side of the frame by bolts.

[0008] Preferably, a driving motor is fixedly provided at the bottom end of the outer side wall of the frame, a pulley is fixedly provided on the output shaft of the driving motor and one end of the movable tube, and a transmission belt is provided between the two pulleys.

[0009] Preferably, a pressure roller is arranged on the outer side of the frame, and the pressure roller is in contact with the outer side wall of the cooling roller.

[0010] Preferably, both ends of the pressure roller are provided with movable arms movably via pins, and the bottom end of the movable arm is movably connected to the bottom end of the outer wall of the frame via a pin, and the top end of the movable arm is provided with an adjusting arm movably via a pin.

[0011] Preferably, an adjusting rod is movably provided at the inner top end of the adjusting arm through a bearing, a positioning seat is fixedly provided in the middle of the adjusting rod, a thread groove is penetrated through the middle of the positioning seat, an adjusting screw is penetrated through the inside of the thread groove, a support is movably provided at the top end of the adjusting screw through a bearing, and the support is movably provided at the outer top end of the bracket through a pin shaft.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model provides a frame, a rotatable cooling roller is provided inside the frame, the cooling roller is provided at the bottom end of the extrusion die, the film can follow the movement of the cooling roller after extrusion, a fixed cylinder is provided inside the cooling roller, a guide plate with a spiral structure is provided between the fixed cylinder and the cooling roller, exhaust fans are provided at both ends of the cooling roller, and the two sets of exhaust fans cooperate so that air can circulate between the cooling roller and the fixed cylinder, thereby achieving the heat dissipation effect of the film on the surface of the cooling roller, and the film can move under the adhesion effect of the surface of the cooling roller when it is not fully formed, thereby ensuring the cooling and forming effect of the film;

[0014] 2. The utility model arranges a pressure roller on one side of the cooling roller, and the pressure roller is arranged on the outside of the frame through a movable arm and an adjusting arm. An adjusting rod is arranged on the inner side of the adjusting arm. By adjusting the position of the adjusting rod, the position of the pressure roller can be adjusted, thereby adjusting the position between the pressure roller and the cooling roller, and further adjusting the pressure applied to the film during the forming process to ensure the forming effect of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a side sectional schematic diagram of the overall structure of the utility model.

[0017] Figure 3 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] In the figure: 1. frame; 2. movable pipe; 3. cooling roller; 4. extrusion die; 5. fixed cylinder; 6. through groove; 7. air guide block; 8. guide plate; 9. heat conduction block; 10. exhaust fan; 11. connecting ear; 12. driving motor; 13. pulley; 14. pressure roller; 15. movable arm; 16. adjusting arm; 17. adjusting rod; 18. positioning seat; 19. threaded groove; 20. adjusting screw; 21. support. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides Figure 1-3The puncture-resistant body-fitting film co-extrusion device shown comprises a frame 1, movable tubes 2 are provided through bearings in the middle of both sides of the frame 1, a cooling roller 3 is fixedly provided between the two movable tubes 2, and an extrusion die 4 is fixedly provided at the top of the frame 1;

[0021] Specifically, a fixed cylinder 5 is fixedly arranged inside the cooling roller 3, and the two ends of the fixed cylinder 5 are fixedly connected to the two movable tubes 2 respectively, a plurality of through grooves 6 are arranged around one end of the outer wall of the movable tube 2 close to the fixed cylinder 5, an air guide block 7 is fixedly arranged at one end of the inner part of the movable tube 2, and the air guide block 7 is arranged in a hemispherical structure, a guide plate 8 with a spiral structure is arranged around the outer wall of the fixed cylinder 5, and the guide plate 8 is fitted with the inner wall of the cooling roller 3, a plurality of heat conduction blocks 9 are arranged around the inner wall of the cooling roller 3, and the heat conduction blocks 9 are fixedly arranged on the outer side of the guide plate 8, the heat conduction blocks 9 can improve the heat exchange effect between the cooling roller 3 and the air, and the guide plate 8 can guide the air to ensure the heat exchange effect between the air and the cooling roller 3;

[0022] More specifically, one end of the two movable tubes 2 is provided with an exhaust fan 10 through a bearing, and the rotation directions of the two sets of exhaust fans 10 are opposite. The outer wall of the exhaust fan 10 is surrounded by a plurality of connecting ears 11, and the connecting ears 11 are fixed to the outer side of the frame 1 by bolts. The two sets of exhaust fans 10 can drive the air to move, so that the air passes between the cooling roller 3 and the fixed cylinder 5. At this time, the air exchanges heat with the film through the cooling roller 3, so as to achieve the cooling treatment of the film.

[0023] In addition, a driving motor 12 is fixedly provided at the bottom end of the outer wall of the frame 1, and a pulley 13 is fixedly provided on the output shaft of the driving motor 12 and one end of the movable tube 2, and a transmission belt is provided between the two pulleys 13. The driving motor 12 drives the movable tube 2 to rotate through the pulley 13, and the movable tube 2 drives the cooling roller 3 to rotate, and the cooling roller 3 can drive the film to move;

[0024] Moreover, a pressure roller 14 is arranged on the outer side of the frame 1, and the pressure roller 14 is in contact with the outer side wall of the cooling roller 3, and movable arms 15 are movably arranged at both ends of the pressure roller 14 through a pin shaft, and the bottom end of the movable arm 15 is movably connected to the bottom end of the outer side wall of the frame 1 through a pin shaft, and an adjusting arm 16 is movably arranged at the top end of the movable arm 15 through a pin shaft;

[0025] At the same time, an adjusting rod 17 is movably provided at the inner top end of the adjusting arm 16 through a bearing, a positioning seat 18 is fixedly provided in the middle of the adjusting rod 17, a threaded groove 19 is penetrated in the middle of the positioning seat 18, an adjusting screw 20 is penetrated inside the threaded groove 19, a support 21 is movably provided at the top end of the adjusting screw 20 through a bearing, and the support 21 is movably provided at the outer top end of the bracket 1 through a pin shaft, the adjusting screw 20 cooperates with the threaded groove 19, so that the positioning seat 18 drives the positioning rod 17 to move, and the positioning rod 17 drives the adjusting arm 16 to move, because the adjusting arm 16, the movable arm 15 and the frame 1 form a triangular structure, the adjusting arm 16 can drive the pressure roller 14 to move, so that the position between the pressure roller 14 and the cooling roller 3 is adjusted, so that the pressing effect of the pressure roller 14 and the cooling roller 3 on the film is adjusted to ensure the forming effect of the film.

[0026] Working principle of this utility model:

[0027] When the device is in use, the raw materials of the puncture-resistant body-fitting film are pumped into the extrusion die 4, and a variety of raw materials are extruded and formed under the guidance of the extrusion die 4. The formed film can fall on the surface of the cooling roller 3. At this time, the driving motor 12 drives the movable tube 2 to rotate through the pulley 13, and the movable tube 2 drives the cooling roller 3 to rotate, and the cooling roller 3 can drive the film to move. In this process, the two sets of exhaust fans 10 can drive the air to move, so that the air passes between the cooling roller 3 and the fixed cylinder 5. At this time, the air exchanges heat with the film through the cooling roller 3, so that the film can be cooled and cooled. In this process, by rotating the adjusting screw 20, the adjusting screw 20 cooperates with the thread groove 19, so that the positioning seat 18 drives the positioning rod 17 to move, and the positioning rod 17 drives the adjusting arm 16 to move. Since the adjusting arm 16, the movable arm 15 and the frame 1 form a triangular structure, the adjusting arm 16 can drive the pressing roller 14 to move, so that the position between the pressing roller 14 and the cooling roller 3 is adjusted, so that the pressing effect of the pressing roller 14 and the cooling roller 3 on the film is adjusted to ensure the molding effect of the film.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A puncture-resistant body-fitting film co-extrusion device, comprising a frame (1), characterized in that: A movable tube (2) is provided through the middle of both sides of the frame (1) via a bearing, a cooling roller (3) is fixedly provided between the two movable tubes (2), an extrusion die (4) is fixedly provided at the top of the frame (1), a fixed cylinder (5) is fixedly provided inside the cooling roller (3), and the two ends of the fixed cylinder (5) are respectively fixedly connected to the two movable tubes (2), a plurality of through grooves (6) are provided around one end of the outer wall of the movable tube (2) close to the fixed cylinder (5), and one end of the inner part of the movable tube (2) is provided with a plurality of through grooves (6). An air guide block (7) is fixedly arranged, and the air guide block (7) is arranged as a hemispherical structure. A guide plate (8) with a spiral structure is arranged around the outer wall of the fixed cylinder (5), and the guide plate (8) is in contact with the inner wall of the cooling roller (3). A plurality of heat conduction blocks (9) are arranged around the inner wall of the cooling roller (3), and the heat conduction blocks (9) are fixedly arranged on the outer side of the guide plate (8). One end of each of the two movable tubes (2) is movably arranged with an exhaust fan (10) through a bearing, and the rotation directions of the two sets of exhaust fans (10) are opposite.

2. The puncture-resistant body-fitting film co-extrusion device according to claim 1, characterized in that: A plurality of connection ears (11) are arranged around the outer side wall of the exhaust fan (10), and the connection ears (11) are fixed to the outer side of the frame (1) by means of bolts.

3. The puncture-resistant body-fitting film co-extrusion device according to claim 2, characterized in that: A driving motor (12) is fixedly arranged at the bottom end of the outer wall of the frame (1), a pulley (13) is fixedly arranged on the output shaft of the driving motor (12) and one end of the movable tube (2), and a transmission belt is arranged between the two pulleys (13).

4. The puncture-resistant body-fitting film co-extrusion device according to claim 3, characterized in that: A pressure roller (14) is arranged on the outer side of the frame (1), and the pressure roller (14) is in contact with the outer side wall of the cooling roller (3).

5. The puncture-resistant body-fitting film co-extrusion device according to claim 4, characterized in that: Both ends of the pressure roller (14) are movably provided with movable arms (15) via pins, and the bottom end of the movable arm (15) is movably connected to the bottom end of the outer wall of the frame (1) via a pin, and the top end of the movable arm (15) is movably provided with an adjustment arm (16) via a pin.

6. The puncture-resistant body-fitting film co-extrusion device according to claim 5, characterized in that: An adjusting rod (17) is movably provided at the inner top end of the adjusting arm (16) via a bearing, a positioning seat (18) is fixedly provided at the middle of the adjusting rod (17), a thread groove (19) is provided through the middle of the positioning seat (18), an adjusting screw (20) is provided through the inside of the thread groove (19), a support (21) is movably provided at the top end of the adjusting screw (20) via a bearing, and the support (21) is movably provided at the outer top end of the frame (1) via a pin shaft.

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