Heating and shaping device for film production

Abstract

The invention discloses a heating and shaping device for film production, and relates to the technical field of film processing, the heating and shaping device comprises a box body, two sides of the box body are provided with openings for allowing a film to pass through, the top of the box body is fixedly provided with a top cover, the bottom of the box body is fixedly provided with a motor, and one side of the box body is provided with a plurality of groups of tensioning wheels; an air heater is fixedly installed at the bottom of the box body, and multiple sets of bearing seats are arranged on one side of the box body. Compared with the prior art, the film can be repeatedly stretched along with gradual entering of the film through the stretching assembly, so that deformation of the film is more uniform, the film is prevented from being torn during heating, the thickness and flatness of the film can be guaranteed through the setting assembly, and when the film is stretched, the film is not prone to being torn during heating. According to the film stretching device, the quality of a film can be guaranteed, the film is prevented from being broken during stretching, the thickness and flatness of the discharged film are guaranteed after stretching is completed, and the quality of the film is better.

Description

Technical Field

[0001] The invention relates to the technical field of film processing, in particular to a heating and shaping device for film production. Background Art

[0002] The stretching process in film production is a key step that affects the performance and final application of the film. First, the raw materials (usually plastic granules) are heated to a molten state, then extruded through an extruder. The extruded film passes through a cooling system to quickly solidify it and maintain its initial shape and structure. After cooling, the film enters the stretching stage. In this stage, the film is stretched to improve its mechanical and physical properties. Through the stretching process, the film's strength, durability, and transparency are significantly improved. Different stretching processes can produce films with different characteristics to meet the needs of different applications.

[0003] A Chinese patent with publication number CN118024630A discloses a film heat setting component, including a chassis, and a plurality of sets of setting rollers, guide rollers and rubber pressure rollers installed horizontally in the chassis. The chassis is divided into a heating chamber and a cooling chamber. A heating wire is arranged in the setting roller to ensure that the temperature of the film is consistent during setting. However, during the stretching process of the film, due to the different heating time of the film in the heating chamber, the stretching characteristics of the film are different, and tearing is easily generated during heating and stretching at the setting roller, thereby affecting the product production quality. Summary of the invention

[0004] The object of the present invention is to provide a heating and shaping device for film production, so as to solve the problem mentioned in the background art that the film is easily torn when heated and stretched at the shaping roller due to different heating times inside the heating chamber.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: A heating and shaping device for film production, comprising: a box body, both sides of the box body are provided with openings for accommodating the passage of the film, a top cover is fixedly installed on the top of the box body, a motor is fixedly installed on the bottom of the box body, a plurality of sets of tension wheels are provided on one side of the box body, a hot air blower is fixedly installed on the bottom of the box body, and a plurality of sets of bearing seats are provided on one side of the box body; A shaping component is rotatably mounted inside the box, the shaping component is used to fix and guide the film, and the shaping component is connected to the motor in a transmission manner; A stretching assembly is rotatably mounted inside the box, the stretching assembly is used to stretch the film, and the stretching assembly is transmission-connected to the motor; An adjustment component is fixedly mounted on both sides of the box body, and is used to adjust the shaping component.

[0006] Preferably, the top cover is fixedly mounted on the top of the box body, a plurality of wind shelters are fixedly mounted on the inner walls on both sides of the top cover, ventilation grilles are fixedly mounted on both sides of the top cover, and the wind shelters are connected to the ventilation grilles.

[0007] Preferably, the shaping component includes a first shaping roller rotatably mounted on the inner walls on both sides of the box body, a second shaping roller rotatably mounted on the inner walls on both sides of the box body, a first rubber pressing roller and a second rubber pressing roller slidably mounted on the inner walls on both sides of the box body, the first rubber pressing roller and the first shaping roller are arranged at an opening on one side close to the box body, the second rubber pressing roller and the second shaping roller are arranged at an opening on the other side close to the box body, and the bearing seat is adapted to match the first shaping roller and the second shaping roller.

[0008] Preferably, the stretching assembly includes a first stretching roller rotatably mounted on the inner walls on both sides of the box body, an eccentric shaft is rotatably mounted inside the first stretching roller, the rotating shaft of the eccentric shaft is eccentrically arranged, a heating rod is arranged at the axis center of the eccentric shaft, a second stretching roller is rotatably mounted on the inner walls on both sides of the box body, the second stretching roller has the same structure as the first stretching roller, the axis centers of the first stretching roller and the second stretching roller are located on the same horizontal plane, a movable hole is opened on one side of the box body, a pressing frame is rotatably connected and mounted on both sides of the box body, the pressing frame is located in the middle of the first stretching roller and the second stretching roller, a third rubber pressing roller and a fourth rubber pressing roller are rotatably mounted at both ends of the pressing frame, the third rubber pressing roller and the fourth rubber pressing roller are located inside the movable hole, a tension spring is fixedly mounted on the pressure frame, the other end of the tension spring is fixedly mounted on one side wall of the box body, and the bearing seat is adaptively arranged with the first stretching roller and the second stretching roller.

[0009] Preferably, the adjustment assembly includes a mounting seat fixedly mounted on an outer wall of one side of the box body, a sliding seat fixedly mounted on one side of the mounting seat, a bearing movable plate slidably mounted on the sliding seat, a through hole is provided on the bearing movable plate, an adjusting bolt is threadedly mounted on the top of the sliding seat, the bottom of the adjusting bolt is rotatably connected to the bearing movable plate, a bearing cover is fixedly mounted on one side of the bearing movable plate, and the bearing movable plate is adapted to match the first rubber pressure roller and the second rubber pressure roller.

[0010] Preferably, a heating wire is arranged inside the hot air blower, and the hot air blower is connected to the interior of the box.

[0011] Preferably, the first shaping roller, the tensioning wheel, the first stretching roller and the motor are connected via a chain drive, and the second shaping roller, the second stretching roller, the tensioning wheel and the motor are connected via a chain drive.

[0012] Technical effects and advantages of the present invention: The present invention has a reasonable structure. The set stretching assembly can repeatedly stretch the film as the film gradually enters. The film is processed by repeated stretching, so that the deformation of the film is more uniform. Compared with the prior art, the film has different stretching properties due to different heating times. The film is first stretched repeatedly and gently by the stretching assembly, and then flattened and shaped by the shaping assembly, so as to ensure the quality of the film and prevent the film from tearing when heated. In the present invention, the film is shaped by the first rubber pressing roller and the first shaping roller to ensure the thickness and flatness of the film, so that the film can be obtained with uniform thickness when reaching the stretching assembly. When stretching is performed, the quality of the film can be ensured to prevent the film from breaking during stretching. After the stretching is completed, the film after stretching is shaped again by the second rubber pressing roller and the second shaping roller to ensure the thickness and flatness of the film, so that the quality of the film is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the tensioning wheel of the present invention; Figure 3 It is a schematic diagram of the bottom three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the tensioning roller group of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the top cover of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the adjustment component of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the first stretching roller of the present invention; Figure 8 For the present invention Figure 1 Enlarged view of point A in the middle.

[0014] In the figure: 1. box body; 2. top cover; 3. motor; 4. hot air blower; 5. wind shelter; 6. ventilation grille; 7. first rubber pressing roller; 8. first shaping roller; 9. second rubber pressing roller; 10. second shaping roller; 11. third rubber pressing roller; 12. first stretching roller; 13. second stretching roller; 14. fourth rubber pressing roller; 15. eccentric shaft; 16. heating rod; 17. bearing seat; 18. movable hole; 19. clamping frame; 20. tension spring; 21. tension wheel; 22. mounting seat; 23. sliding seat; 24. bearing movable plate; 25. adjusting bolt; 26. bearing cover. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] like Figures 1 to 8 The heating and shaping device for film production shown in the figure comprises: a box body 1, both sides of the box body 1 are provided with openings for accommodating the passage of the film, a top cover 2 is fixedly installed on the top of the box body 1, a motor 3 is fixedly installed on the bottom of the box body 1, a plurality of tensioning wheels 21 are arranged on one side of the box body 1, a hot air blower 4 is fixedly installed on the bottom of the box body 1, a heating wire is arranged inside the hot air blower 4, the hot air blower 4 is connected to the inside of the box body 1, and a plurality of bearing seats 17 are arranged on one side of the box body 1; a shaping component, which is rotatably installed inside the box body 1, the shaping component is used to fix and guide the film, and the shaping component is connected to the motor 3; a stretching component, which is rotatably installed inside the box body 1, the stretching component is used to stretch the film, and the stretching component is connected to the motor 3; an adjustment component, which is fixedly installed on the box body On both sides of the box body 1, the adjustment components are used to adjust the shaping components; the shaping components are adjusted by the adjustment components so that the spacing of the shaping components is adapted to the thickness of the film. The film first passes through the shaping component to be preheated and flattened. The flattened film is gradually heated by the air inside the box body 1. When it reaches the stretching component, the film is stretched and shaped by the stretching component. Since the stretching component used can repeatedly stretch the film as the film gradually enters, the film is processed by repeated stretching, so that the deformation of the film is more uniform. Compared with the prior art, in order to solve the problem that the stretching characteristics of the film are different due to different heating time, the film is first repeatedly and gently stretched by the stretching component, and then flattened and shaped by the shaping component, so as to ensure the quality of the film and prevent the film from tearing when heated.

[0017] like Figure 1 and Figure 5 As shown, the top cover 2 is fixedly installed on the top of the box body 1, and multiple groups of wind shelters 5 are fixedly installed on the inner walls on both sides of the top cover 2. Ventilation grilles 6 are fixedly installed on both sides of the top cover 2, and the wind shelters 5 are connected to the ventilation grilles 6. Through the set wind shelters 5 and ventilation grilles 6, the external air can be prevented from interfering with the heat flow inside the box body 1, and the internal temperature stability can be ensured.

[0018] like Figure 1 , Figure 2 , Figure 4 and Figure 8As shown, the shaping component includes a first shaping roller 8 rotatably mounted on the inner walls of both sides of the box body 1, a second shaping roller 10 is rotatably mounted on the inner walls of both sides of the box body 1, a first rubber pressing roller 7 and a second rubber pressing roller 9 are slidably mounted on the inner walls of both sides of the box body 1, the first rubber pressing roller 7 and the first shaping roller 8 are arranged at an opening on one side close to the box body 1, the second rubber pressing roller 9 and the second shaping roller 10 are arranged at an opening on the other side close to the box body 1, and the bearing seat 17 is adapted to the first shaping roller 8 and the second shaping roller 10; the film is shaped by the first rubber pressing roller 7 and the first shaping roller 8 to ensure the thickness and flatness of the film, so that the film can obtain a film of uniform thickness when it reaches the stretching component, and the quality of the film can be guaranteed during stretching to prevent the film from breaking during stretching. After the stretching is completed, the film after stretching is shaped again by the second rubber pressing roller 9 and the second shaping roller 10 to ensure the thickness and flatness of the film, so that the quality of the film is better.

[0019] like Figure 1 , Figure 4 , Figure 7 and Figure 8As shown, the stretching assembly includes a first stretching roller 12 rotatably mounted on the inner walls of both sides of the box body 1, an eccentric shaft 15 is rotatably mounted inside the first stretching roller 12, the rotating shaft of the eccentric shaft 15 is eccentrically arranged, and a heating rod 16 is arranged at the axis of the eccentric shaft 15, and a second stretching roller 13 is rotatably mounted on the inner walls of both sides of the box body 1, the second stretching roller 13 has the same structure as the first stretching roller 12, and the axis of the first stretching roller 12 and the second stretching roller 13 are located on the same horizontal plane, a movable hole 18 is opened on one side of the box body 1, and a pressing frame 19 is rotatably connected and installed on both sides of the box body 1, and the pressing frame 19 is located in the middle of the first stretching roller 12 and the second stretching roller 13, and the pressing The third and fourth rubber pressing rollers 11 and 14 are rotatably mounted at both ends of the frame 19. The third and fourth rubber pressing rollers 11 and 14 are located inside the movable hole 18. A tension spring 20 is fixedly mounted on the clamping frame 19. The other end of the tension spring 20 is fixedly mounted on a side wall of the box body 1. The bearing seat 17 is adapted to the first stretching roller 12 and the second stretching roller 13. The first stretching roller 12 and the second stretching roller 13 are driven by the motor 3. Since the first stretching roller 12 and the second stretching roller 13 are both eccentrically arranged, the film will be stretched between the first stretching roller 12 and the second stretching roller 13. The film as a whole is clamped by the shaping components on both sides. When the stretching roller 12 and the second stretching roller 13 rotate synchronously, the distance between the first stretching roller 12 and the second stretching roller 13 gradually increases, and reaches the maximum after rotating half a circle, that is, the film is subjected to the maximum tension between the first stretching roller 12 and the second stretching roller 13, and the film in the box body 1 can be stretched once. Since the film is heated for different times inside the box body 1, the temperature of the film is also different. The film often reaches the specified temperature after passing through the stretching component. In fact, during the stretching, it is also this section of the film that is deformed. During the movement of the film, the stretching component repeatedly stretches the film, so that the film experiences a process of tension from small to large when being stretched. The process not only has a better stretching effect, but also because the tension gradually increases, the film is not easy to tear. At the same time, by arranging a heating rod 16 inside the eccentric shaft 15, the roller surface temperature of the first stretching roller 12 can be consistent with the film to prevent the temperature difference from causing deformation of the film. When the first stretching roller 12 and the second stretching roller 13 continue to rotate, the tension between the first stretching roller 12 and the second stretching roller 13 gradually decreases until it is minimum. In this process, the film that has completed stretching is transported out, and the film that has not completed stretching continues to be stretched. Compared with the prior art, the use of a stretching component can ensure the quality of the film and prevent the film from breaking during stretching.

[0020] like Figure 1 and Figure 6As shown, the adjustment component includes a mounting seat 22 fixedly mounted on the outer wall of one side of the box body 1, a sliding seat 23 fixedly mounted on one side of the mounting seat 22, a bearing movable plate 24 slidably mounted on the sliding seat 23, a through hole is arranged on the bearing movable plate 24, an adjusting bolt 25 is threadedly mounted on the top of the sliding seat 23, the bottom of the adjusting bolt 25 is rotatably connected to the bearing movable plate 24, a bearing cover 26 is fixedly mounted on one side of the bearing movable plate 24, and the bearing movable plate 24 is adapted to the first rubber pressing roller 7 and the second rubber pressing roller 9; the bearings and end faces of the first rubber pressing roller 7 and the second rubber pressing roller 9 are fixed by the bearing movable plate 24 and the bearing cover 26, the bearing movable plate 24 can be adjusted by the adjusting bolt 25, and the height of the first rubber pressing roller 7 and the second rubber pressing roller 9 is adjusted by rotating the adjusting bolt 25 to adapt to films of different thicknesses, which is convenient to use.

[0021] like Figure 1 and Figure 2 As shown, the first shaping roller 8, the tensioning wheel 21, the first stretching roller 12 and the motor 3 are connected via a chain drive, and the second shaping roller 10, the second stretching roller 13, the tensioning wheel 21 and the motor 3 are connected via a chain drive.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included in the protection scope of the present invention.

Claims

1. A heating and shaping device for film production, characterized in that: include: A box body (1), both sides of the box body (1) are provided with openings for accommodating the passage of a film, a top cover (2) is fixedly mounted on the top of the box body (1), a motor (3) is fixedly mounted on the bottom of the box body (1), a plurality of sets of tension wheels (21) are arranged on one side of the box body (1), a hot air blower (4) is fixedly mounted on the bottom of the box body (1), and a plurality of sets of bearing seats (17) are arranged on one side of the box body (1); A shaping component, which is rotatably mounted inside the box (1), the shaping component is used to fix and guide the film, and the shaping component is connected to the motor (3) in a transmission manner; A stretching assembly, which is rotatably mounted inside the box (1), the stretching assembly is used to stretch the film, and the stretching assembly is transmission-connected to the motor (3); An adjustment component is fixedly mounted on both sides of the box body (1), and is used to adjust the shaping component.

2. A heating and shaping device for film production according to claim 1, characterized in that: The top cover (2) is fixedly mounted on the top of the box body (1), a plurality of wind shelters (5) are fixedly mounted on the inner walls on both sides of the top cover (2), ventilation grilles (6) are fixedly mounted on both sides of the top cover (2), and the wind shelters (5) are connected to the ventilation grilles (6).

3. A heating and shaping device for film production according to claim 1, characterized in that: The shaping component comprises a first shaping roller (8) rotatably mounted on the inner walls of both sides of the box body (1), a second shaping roller (10) rotatably mounted on the inner walls of both sides of the box body (1), a first rubber pressing roller (7) and a second rubber pressing roller (9) slidably mounted on the inner walls of both sides of the box body (1), the first rubber pressing roller (7) and the first shaping roller (8) being arranged at an opening on one side close to the box body (1), the second rubber pressing roller (9) and the second shaping roller (10) being arranged at an opening on the other side close to the box body (1), and the bearing seat (17) being adapted to be arranged with the first shaping roller (8) and the second shaping roller (10).

4. A heating and shaping device for film production according to claim 3, characterized in that: The stretching assembly comprises a first stretching roller (12) rotatably mounted on the inner walls on both sides of the box (1); an eccentric shaft (15) is rotatably mounted inside the first stretching roller (12); the rotating shaft of the eccentric shaft (15) is eccentrically arranged; a heating rod (16) is arranged at the axis of the eccentric shaft (15); a second stretching roller (13) is rotatably mounted on the inner walls on both sides of the box (1); the second stretching roller (13) has the same structure as the first stretching roller (12); the axis of the first stretching roller (12) and the second stretching roller (13) are located on the same horizontal plane; a movable hole (18) is opened on one side of the box (1); the box A pressing frame (19) is rotatably connected and installed on both sides of the box (1), and the pressing frame (19) is located in the middle of the first stretching roller (12) and the second stretching roller (13). A third rubber pressing roller (11) and a fourth rubber pressing roller (14) are rotatably installed at both ends of the pressing frame (19), and the third rubber pressing roller (11) and the fourth rubber pressing roller (14) are located inside the movable hole (18). A tension spring (20) is fixedly installed on the pressing frame (19), and the other end of the tension spring (20) is fixedly installed on a side wall of the box body (1). The bearing seat (17) is adapted to the first stretching roller (12) and the second stretching roller (13).

5. A heating and shaping device for film production according to claim 4, characterized in that: The adjustment assembly comprises a mounting seat (22) fixedly mounted on an outer wall of one side of the box body (1); a sliding seat (23) is fixedly mounted on one side of the mounting seat (22); a bearing movable plate (24) is slidably mounted on the sliding seat (23); a through hole is provided on the bearing movable plate (24); an adjusting bolt (25) is threadedly mounted on the top of the sliding seat (23); the bottom of the adjusting bolt (25) is rotatably connected to the bearing movable plate (24); a bearing cover (26) is fixedly mounted on one side of the bearing movable plate (24); and the bearing movable plate (24) is adapted to fit the first rubber pressing roller (7) and the second rubber pressing roller (9).

6. A heating and shaping device for film production according to claim 1, characterized in that: A heating wire is arranged inside the hot air blower (4), and the hot air blower (4) is connected to the interior of the box (1).

7. A heating and shaping device for film production according to claim 5, characterized in that: The first shaping roller (8), the tensioning wheel (21), the first stretching roller (12) and the motor (3) are connected via a chain drive, and the second shaping roller (10), the second stretching roller (13), the tensioning wheel (21) and the motor (3) are connected via a chain drive.

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