Heating and shaping device for film production

Abstract

The utility model discloses a heating and shaping device for film production, which relates to the technical field of film processing and comprises a box body, openings for allowing a film to pass through are arranged on two sides of the box body, a top cover is fixedly mounted at the top of the box body, a motor is fixedly mounted at the bottom of the box body, and a plurality of groups of tensioning wheels are arranged on one side of the box body. 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 utility model 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 critical step that impacts the film's performance and ultimate application. First, the raw material (typically plastic pellets) is heated to a molten state and then extruded through an extruder. The extruded film passes through a cooling system, which rapidly solidifies it while maintaining its initial shape and structure. After cooling, the film enters the stretching stage. During this stage, the film is stretched to enhance its mechanical and physical properties. Through the stretching process, properties such as strength, durability, and transparency are significantly enhanced. Different stretching processes can produce films with diverse properties to meet the needs of diverse applications.

[0003] Chinese patent publication number CN118024630A discloses a film heat-setting assembly, including a chassis, and several groups of setting rollers, guide rollers and pressure rollers horizontally installed in the chassis. The chassis is divided into a heating chamber and a cooling chamber. Heating wires are arranged in the setting rollers to ensure consistent temperature during film setting. However, during the stretching process of the film, due to different heating times 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 rollers, thereby affecting product production quality. Utility Model Content

[0004] The purpose of the utility model is to provide a heating and shaping device for film production, so as to solve the problem proposed in the above background technology 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 setting device for film production, comprising: a box body, both sides of which are provided with openings for accommodating the passage of film, a top cover fixedly mounted on the top of the box body, a motor fixedly mounted on the bottom of the box body, multiple sets of tensioning pulleys mounted on one side of the box body, a hot air blower fixedly mounted on the bottom of the box body, and multiple sets of bearing seats mounted on one side of the box body;

[0006] A shaping assembly is rotatably mounted inside the box, the shaping assembly is used to fix and guide the film, and the shaping assembly is connected to the motor;

[0007] 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;

[0008] The adjusting components are fixedly mounted on both sides of the box body and are used to adjust the shaping components.

[0009] Preferably, the top cover is fixedly mounted on the top of the box body, multiple groups 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.

[0010] 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 pressure roller and a second rubber pressure roller slidably mounted on the inner walls on both sides of the box body, the first rubber pressure roller and the first shaping roller are arranged at an opening on one side close to the box body, the second rubber pressure 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.

[0011] Preferably, the stretching assembly includes a first stretching roller rotatably mounted on the inner walls of both sides of the box body, an eccentric shaft rotatably mounted inside the first stretching roller, the eccentric shaft rotating shaft is eccentrically set, and a heating rod is set at the axis center of the eccentric shaft, and a second stretching roller is rotatably mounted on the inner walls of both sides of the box body, the second stretching roller has the same structure as the first stretching roller, and 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, and a pressure frame is rotatably connected and installed on both sides of the box body, the pressure frame is located in the middle of the first stretching roller and the second stretching roller, and a third rubber pressure roller and a fourth rubber pressure roller are rotatably mounted at both ends of the pressure frame, the third rubber pressure roller and the fourth rubber pressure roller are located inside the movable hole, a tension spring is fixedly mounted on the pressure frame, and 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.

[0012] 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 be matched with the first rubber pressure roller and the second rubber pressure roller.

[0013] Preferably, a heating wire is provided inside the hot air blower, and the hot air blower is connected to the interior of the box.

[0014] 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.

[0015] The technical effects and advantages of this utility model are:

[0016] The utility model has a reasonable structure. The stretching component is provided to 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 existing technology, the problem of different stretching properties of the film due to different heating times is addressed. The stretching component is used to repeatedly and gently stretch the film, and then the shaping component is used to flatten and shape the film, thereby ensuring the quality of the film and preventing the film from tearing during heating.

[0017] In the utility model, the film is shaped by the first rubber pressing roller and the first shaping roller, so as to ensure the thickness and flatness of the film, so that the film can obtain a film of uniform thickness when reaching the stretching component. When stretching is performed, the quality of the film can be guaranteed and the film can be prevented 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, so as to ensure the thickness and flatness of the film, so as to improve the quality of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the tensioning pulley of the utility model;

[0020] Figure 3 This is a schematic diagram of the bottom three-dimensional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the tensioning roller group of the utility model;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the top cover of the utility model;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the adjustment component of the utility model;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the first stretching roller of the utility model;

[0025] Figure 8 For this utility model Figure 1 Enlarged view of point A in the middle.

[0026] 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. Pressing frame; 20. Tension spring; 21. Tensioning pulley; 22. Mounting seat; 23. Sliding seat; 24. Bearing movable plate; 25. Adjusting bolt; 26. Bearing cover. DETAILED DESCRIPTION

[0027] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0028] 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 provided 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 provided inside the hot air blower 4, the hot air blower 4 is connected to the interior of the box body 1, and a plurality of bearing seats 17 are provided on one side of the box body 1; a shaping component, which is rotatably installed inside the box body 1, and the shaping component is used to fix and guide the film, and the shaping component is connected to the motor 3 in transmission; a stretching component, which is rotatably installed inside the box body 1, and the stretching component is used to stretch the film, and the stretching component is connected to the motor 3 in transmission; an adjustment component, which is fixedly installed on the box body On both sides of the 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 adapts to the thickness of the film. The film first passes through the shaping component to be preheated and flattened at the same time. 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 existing technology, in order to solve the problem that the stretching properties 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 during heating.

[0029] like Figure 1 and Figure 5As 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. By setting the 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.

[0030] like Figure 1 、 Figure 2 、 Figure 4 and Figure 8 As 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, and 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, and 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. 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. When stretching, the quality of the film can be guaranteed to prevent the film from breaking during stretching. After the stretching is completed, the film 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.

[0031] 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, pressing The third and fourth rubber pressing rollers 11 and 14 are rotatably mounted on 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 pressing frame 19. The other end of the tension spring 20 is fixedly mounted on one 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 set, 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, which can achieve a single stretching of the film in the box 1. Since the film is heated for different times inside the box 1, the temperature of the film is also different. The film often reaches the specified temperature after passing through the stretching assembly. In fact, during the stretching, it is also this section of the film that is deformed. During the movement of the film, the stretching assembly 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 is gradually increased, 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, preventing 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 existing technology, the use of a stretching component can ensure the quality of the film and prevent the film from breaking during stretching.

[0032] like Figure 1 and Figure 6As shown, the adjustment component includes a mounting base 22 fixedly mounted on the outer wall of one side of the box body 1, a sliding base 23 fixedly mounted on one side of the mounting base 22, a bearing movable plate 24 slidably mounted on the sliding base 23, a through hole is provided on the bearing movable plate 24, an adjusting bolt 25 is threadedly installed on the top of the sliding base 23, and the bottom of the adjusting bolt 25 is rotatably connected to the bearing movable plate 24, and 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 provided bearing movable plate 24 and the bearing cover 26, and the bearing movable plate 24 can be adjusted by the provided 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 easy to use.

[0033] 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.

[0034] 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, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection 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 tensioning wheels (21) are provided 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 provided on one side of the box body (1); A shaping component is rotatably mounted inside the box (1), the shaping component is used to fix and guide the film, and the shaping component is in transmission connection with the motor (3); A stretching assembly is rotatably mounted inside the box (1), the stretching assembly is used to stretch the film, and the stretching assembly is in transmission connection with the motor (3); An adjustment component is fixedly mounted on both sides of the box body (1), and the adjustment component 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), and 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 on both sides of the box body (1), a second shaping roller (10) rotatably mounted on the inner walls on 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 on 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 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 includes a first stretching roller (12) rotatably mounted on the inner walls of 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, 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 (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, and a movable hole (18) is opened on one side of the box (1), and the box Both sides of (1) are rotatably connected and installed with a pressing frame (19), the pressing frame (19) is located in the middle of the first stretching roller (12) and the second stretching roller (13), and the third rubber pressing roller (11) and the fourth rubber pressing roller (14) are rotatably installed at both ends of the pressing frame (19), the third rubber pressing roller (11) and the fourth rubber pressing roller (14) are located inside the movable hole (18), and 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), and 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 includes a mounting seat (22) fixedly mounted on an 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 provided on the bearing movable plate (24), an adjusting bolt (25) threadedly mounted on the top of the sliding seat (23), the bottom of the adjusting bolt (25) being rotatably connected to the bearing movable plate (24), a bearing cover (26) fixedly mounted on one side of the bearing movable plate (24), and the bearing movable plate (24) being adapted to the first rubber pressure roller (7) and the second rubber pressure roller (9).

6. A heating and shaping device for film production according to claim 1, characterized in that: A heating wire is provided 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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