Plastic film production winding structure

Abstract

The application relates to the technical field of plastic film production equipment, and discloses a plastic film production winding structure which comprises a rack, two rotating shafts are rotationally connected to the inner walls of one side of the rack, unwinding rollers and winding rollers are sleeved to the outer walls of the two rotating shafts, a tension adjusting mechanism is arranged between the unwinding rollers and the winding rollers, the tension adjusting mechanism comprises a fixing frame, a shaft seat, a connecting rod, a sliding rod and a spring, in the utility model, through cooperation of the spring, the sliding rod and other components in the tension adjusting mechanism, real-time response to tension change and dynamic adjustment can be realized, plastic film stretching deformation, tearing, uneven thickness, mechanical property decline and other conditions caused by excessive tension can be avoided, wrinkles and dislocation problems caused by loose film layer adhesion when the tension is too small can be solved, the appearance flatness of the winding material is ensured, material waste and equipment jam in subsequent slitting, printing and other processes are reduced, and the winding quality is greatly improved.

Description

Technical Field

[0001] This application relates to the field of plastic film production equipment technology, and in particular to plastic film production winding structures. Background Technology

[0002] In the production process of plastic film, the winding process plays a decisive role, and its quality is directly related to the adaptability of the plastic film to subsequent processing and the end-use effect.

[0003] Currently, existing winding structures generally suffer from insufficient tension control precision. Specifically, when the plastic film transmission speed fluctuates or the winding roller diameter changes with the roll diameter, the tension is prone to sudden increases or decreases. When the tension is too high, the plastic film is prone to stretching deformation or even tearing, resulting in uneven film thickness and decreased mechanical properties. When the tension is too low, the film layers are loosely bonded, easily causing wrinkles and misalignments during winding. This not only affects the flatness of the roll appearance but also causes material waste and equipment jamming in subsequent slitting, printing, and other processes. Therefore, a plastic film production winding structure has been proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a winding structure for producing plastic film, so as to solve the problems mentioned in the background art.

[0005] The plastic film production winding structure provided in this application adopts the following technical solution:

[0006] A plastic film production winding structure includes a frame, with two rotating shafts rotatably connected to the inner wall of one side of the frame. An unwinding roller and a take-up roller are respectively sleeved on the outer walls of the two rotating shafts, and a tension adjustment mechanism is installed between the unwinding roller and the take-up roller.

[0007] The tension adjustment mechanism includes a fixed frame, a bearing, a connecting rod, a slide rod, and a spring. Two fixed frames are fixedly connected to the top inner wall of the frame. Two connecting rods are rotatably connected to the bottom inner walls of the two bearings. The bottom ends of the two connecting rods are hinged to a connecting frame. A tension roller is rotatably connected to the inner wall of the connecting frame. Two slide rods are fixedly connected to the outer walls of the two bearings on opposite sides. Two springs are sleeved on the outer walls of the slide rods. The end of the slide rod away from the bearing is slidably connected to the fixed frame.

[0008] Preferably, a guide rail is fixedly connected to the top inner wall of the frame, and two sliders are slidably connected to the outer wall of the guide rail. Two shaft seats are fixedly connected to the bottom outer wall of the two sliders respectively, and two fixing brackets are located at both ends of the guide rail.

[0009] Preferably, a telescopic rod is fixedly connected to the outer wall of one side of each of the two sliders, and the end of the telescopic rod away from the slider is fixedly connected to the outer wall of the fixing frame.

[0010] Preferably, a limiting mechanism is installed on the outer wall of the connecting frame. The limiting mechanism includes a limiting plate, a rack and a gear. The two racks are respectively fixedly connected to the outer wall of the two limiting plates on opposite sides. The gear meshes with the two racks.

[0011] Preferably, the top outer wall of the connecting frame is fixedly connected to two slide rails, and the outer wall of the slide rails is slidably connected to a second slider. The outer wall of the second slider is fixedly connected to the limiting plate through a connecting rod.

[0012] Preferably, a fixing plate is fixedly connected to the outer wall of the top middle section of the connecting frame, and a micro motor is fixedly installed on the top outer wall of the fixing plate. The end of the output shaft of the micro motor passes through the fixing plate and is fixedly connected to a gear.

[0013] Preferably, the ends of the two rotating shafts are threaded with retaining rings, and guide rods are rotatably connected to the inner walls of both sides of the frame, with the guide rods located between the unwinding roller and the tensioning roller.

[0014] Preferably, a take-up motor is fixedly installed on one outer wall of the frame, and the end of the output shaft of the take-up motor passes through the frame and is fixedly connected to one end of a rotating shaft connected to the take-up roller.

[0015] Preferably, multiple support legs are fixedly connected to the outer walls on both sides of the frame, and the multiple support legs are evenly distributed at the four corner edges of the frame.

[0016] Preferably, the outer walls on both sides of the frame are provided with sliding grooves, and the inner walls of the sliding grooves are slidably connected with sliders, and the two sliders are respectively fixedly connected to the outer walls at both ends of the connecting frame.

[0017] In summary, this application includes the following beneficial technical effects:

[0018] 1. The plastic film production winding structure, through the cooperation of springs, slides and other components in the tension adjustment mechanism, can respond to tension changes in real time and make dynamic adjustments. This avoids the plastic film stretching deformation, tearing, uneven thickness and decreased mechanical properties caused by excessive tension. It also solves the problems of wrinkles and misalignment caused by loose film bonding when the tension is too low. This ensures the flatness of the roll appearance, reduces material waste and equipment jamming in subsequent slitting, printing and other processes, and greatly improves the winding quality.

[0019] 2. This structure achieves automated winding by means of a winding motor, and tension adjustment and limit adjustment do not require frequent manual operation. The tight cooperation of each component ensures a stable and continuous winding process, which reduces the labor intensity of operators and effectively improves production efficiency, thus better meeting the actual needs of plastic film production. Attached Figure Description

[0020] Figure 1 This is an overall schematic diagram of an embodiment of the application;

[0021] Figure 2 This is an exploded view of an embodiment of the application;

[0022] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 4 This is an exploded cross-sectional view of an embodiment of the application;

[0024] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0025] Explanation of reference numerals in the attached diagram: 1. Frame; 2. Rotating shaft; 3. Unwinding roller; 4. Rewinding roller; 5. Rewinding motor; 6. Support foot; 7. Fixing ring; 8. Guide rod; 9. Slide groove; 10. Slider one; 11. Connecting frame; 12. Tensioning roller; 13. Slide rail; 14. Slider two; 15. Limiting plate; 16. Rack; 17. Gear; 18. Fixing plate; 19. Micro motor; 20. Guide rail; 21. Slider three; 22. Fixing frame; 23. Shaft seat; 24. Connecting rod; 25. Slide rod; 26. Spring; 27. Telescopic rod. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0027] This application discloses a winding structure for producing plastic film. (See also...) Figures 1-5 The plastic film production winding structure includes a frame 1. Two rotating shafts 2 are rotatably connected to the inner wall of one side of the frame 1. Unwinding rollers 3 and take-up rollers 4 are respectively sleeved on the outer walls of the two rotating shafts 2. A tension adjustment mechanism is installed between the unwinding rollers 3 and the take-up rollers 4.

[0028] The tension adjustment mechanism includes a fixed frame 22, a bearing seat 23, a connecting rod 24, a slide rod 25, and a spring 26. Two fixed frames 22 are fixedly connected to the top inner wall of the frame 1. Two connecting rods 24 are rotatably connected to the bottom inner wall of the two bearing seats 23 respectively. The bottom ends of the two connecting rods 24 are hinged to a connecting frame 11. A tension roller 12 is rotatably connected to the inner wall of the connecting frame 11. Two slide rods 25 are fixedly connected to the outer wall of the two bearing seats 23 on opposite sides. Two springs 26 are sleeved on the outer wall of the slide rods 25. The end of the slide rod 25 away from the bearing seat 23 is slidably connected to the fixed frame 22.

[0029] A guide rail 20 is fixedly connected to the top inner wall of the frame 1. Two sliders 21 are slidably connected to the outer wall of the guide rail 20. Two bearings 23 are fixedly connected to the bottom outer wall of the two sliders 21 respectively. Two fixing frames 22 are located at both ends of the guide rail 20 respectively. A telescopic rod 27 is fixedly connected to the outer wall of the two sliders 21 on opposite sides. The end of the telescopic rod 27 away from the sliders 21 is fixedly connected to the outer wall of the fixing frame 22.

[0030] A limiting mechanism is installed on the outer wall of the connecting frame 11. The limiting mechanism includes a limiting plate 15, a rack 16, and a gear 17. Two racks 16 are fixedly connected to the outer wall of the two limiting plates 15 on opposite sides. The gear 17 meshes with the two racks 16. Two slide rails 13 are fixedly connected to the top outer wall of the connecting frame 11. A second slider 14 is slidably connected to the outer wall of the slide rails 13. The outer wall of the second slider 14 is fixedly connected to the limiting plate 15 through a connecting rod. A fixing plate 18 is fixedly connected to the top middle section of the outer wall of the connecting frame 11. A micro motor 19 is fixedly installed on the top outer wall of the fixing plate 18. The end of the output shaft of the micro motor 19 passes through the fixing plate 18 and is fixedly connected to the gear 17.

[0031] The ends of the two rotating shafts 2 are threaded with retaining rings 7. Guide rods 8 are rotatably connected to the inner walls of both sides of the frame 1. The guide rods 8 are located between the unwinding roller 3 and the tensioning roller 12. A winding motor 5 is fixedly installed on one outer wall of the frame 1. The end of the output shaft of the winding motor 5 passes through the frame 1 and is fixedly connected to one end of a rotating shaft 2 connected to the winding roller 4. Multiple support feet 6 are fixedly connected to the outer walls of both sides of the frame 1. The multiple support feet 6 are evenly distributed at the four corner edges of the frame 1. Slide grooves 9 are opened on the outer walls of both sides of the frame 1. Sliding sliders 10 are slidably connected to the inner walls of the slide grooves 9. Two sliding sliders 10 are fixedly connected to the outer walls of both ends of the connecting frame 11.

[0032] The implementation principle of the plastic film production winding structure in this application embodiment is as follows: When using the plastic film production winding structure, the plastic film roll is placed on the unwinding roller 3. After one end of the plastic film is guided by the guide rod 8, it passes around the tension roller 12 and is finally fixed on the take-up roller 4. The take-up motor 5 is started, and the take-up motor 5 drives the rotating shaft 2 connected to it to rotate, which in turn drives the take-up roller 4 to rotate and wind up the plastic film.

[0033] During the winding process, the tension adjustment mechanism plays a role. When the tension of the plastic film changes, the tension roller 12 will drive the connecting frame 11 to move. The connecting frame 11 drives the shaft seat 23 to move through the connecting rod 24. The shaft seat 23 drives the slide bar 25 to slide on the fixed frame 22, and the spring 26 deforms, thereby adjusting the tension. At the same time, the shaft seat 23 drives the slider 21 to slide on the guide rail 20, and the telescopic rod 27 also extends and retracts accordingly to assist in tension adjustment.

[0034] The limiting mechanism can restrict the position of the plastic film. When the micro motor 19 is started, the micro motor 19 drives the gear 17 to rotate. The gear 17 meshes with the rack 16, which drives the two limiting plates 15 to move relative to each other or away from each other under the cooperation of the slider 14 and the slide rail 13, thereby adapting to plastic films of different widths and preventing the plastic film from deviating during the winding process.

[0035] The sliders 10 at both ends of the connecting frame 11 slide in the slide groove 9 to ensure the stability of the moving connecting frame 11. The fixing ring 7 can prevent the unwinding roller 3 and the winding roller 4 from sliding on the rotating shaft 2, and at the same time facilitate the disassembly and assembly of the unwinding roller 3 and the winding roller 4. The support foot 6 plays a role in stabilizing the entire device.

[0036] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0037] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic film production winding structure, including a frame (1), characterized in that: Two rotating shafts (2) are rotatably connected to one side of the inner wall of the frame (1). The outer walls of the two rotating shafts (2) are respectively fitted with an unwinding roller (3) and a winding roller (4). A tension adjustment mechanism is installed between the unwinding roller (3) and the winding roller (4). The tension adjustment mechanism includes a fixed frame (22), a bearing seat (23), a connecting rod (24), a slide rod (25), and a spring (26). The two fixed frames (22) are fixedly connected to the top inner wall of the frame (1). The two connecting rods (24) are rotatably connected to the bottom inner wall of the two bearing seats (23). The bottom ends of the two connecting rods (24) are hinged to a connecting frame (11). The inner wall of the connecting frame (11) is rotatably connected to a tension roller (12). The two slide rods (25) are fixedly connected to the outer wall of the two bearing seats (23) on opposite sides. The two springs (26) are sleeved on the outer wall of the slide rods (25). The end of the slide rod (25) away from the bearing seat (23) is slidably connected to the fixed frame (22).

2. The plastic film production winding structure according to claim 1, characterized in that: The top inner wall of the frame (1) is fixedly connected to a guide rail (20), and the outer wall of the guide rail (20) is slidably connected to two sliders (21). The two shaft seats (23) are fixedly connected to the bottom outer wall of the two sliders (21), and the two fixing brackets (22) are located at both ends of the guide rail (20).

3. The plastic film production winding structure according to claim 2, characterized in that: Telescopic rods (27) are fixedly connected to the outer walls of the two sliders (21) on opposite sides. The end of the telescopic rod (27) away from the sliders (21) is fixedly connected to the outer wall of the fixing frame (22).

4. The plastic film production winding structure according to claim 1, characterized in that: The outer wall of the connecting frame (11) is equipped with a limiting mechanism, which includes a limiting plate (15), a rack (16) and a gear (17). The two racks (16) are respectively fixedly connected to the outer wall of the two limiting plates (15) on opposite sides, and the gear (17) meshes with the two racks (16).

5. The plastic film production winding structure according to claim 4, characterized in that: The top outer wall of the connecting frame (11) is fixedly connected to two slide rails (13), and the outer wall of the slide rails (13) is slidably connected to a second slider (14). The outer wall of the second slider (14) is fixedly connected to the limiting plate (15) through a connecting rod.

6. The plastic film production winding structure according to claim 5, characterized in that: A fixing plate (18) is fixedly connected to the outer wall of the top middle section of the connecting frame (11). A micro motor (19) is fixedly installed on the top outer wall of the fixing plate (18). The end of the output shaft of the micro motor (19) passes through the fixing plate (18) and is fixedly connected to the gear (17).

7. The plastic film production winding structure according to claim 1, characterized in that: The ends of the two rotating shafts (2) are threaded with fixing rings (7), and the inner walls on both sides of the frame (1) are rotatably connected with guide rods (8), which are located between the unwinding roller (3) and the tensioning roller (12).

8. The plastic film production winding structure according to claim 1, characterized in that: A take-up motor (5) is fixedly installed on one side of the outer wall of the frame (1). The end of the output shaft of the take-up motor (5) passes through the frame (1) and is fixedly connected to one end of a rotating shaft (2) connected to the take-up roller (4).

9. The plastic film production winding structure according to claim 1, characterized in that: Multiple support feet (6) are fixedly connected to the outer walls of both sides of the frame (1), and the multiple support feet (6) are evenly distributed at the four corner edges of the frame (1).

10. The plastic film production winding structure according to claim 1, characterized in that: The outer walls of both sides of the frame (1) are provided with sliding grooves (9), and the inner walls of the sliding grooves (9) are slidably connected with sliders (10). The two sliders (10) are respectively fixedly connected to the outer walls of both ends of the connecting frame (11).

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