Efficient and energy-saving winding device for plastic film blowing
By using a telescopic spring and a fixing block to press the rotating rod surface tightly in the plastic film winding device, the problem of loose plastic film is solved, achieving tight winding and improving the convenience of transportation and use.
Patent Information
- Application Number
- CN202520747996.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-21
AI Technical Summary
Existing plastic film winding devices lack a tensioning mechanism, resulting in loose plastic film after winding, which affects subsequent transportation and use.
A telescopic spring is used to drive the fixed block and rotating cylinder to tighten the plastic film on the surface of the rotating rod, providing good tension, which, together with the winding mechanism, achieves tight winding.
By providing tension, the plastic film is prevented from loosening, the tightness of the roll is improved, and it is convenient for later transportation and use.
Smart Images

Figure CN223935935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic film winding technology, and in particular to a high-efficiency and energy-saving plastic film blowing winding device. Background Technology
[0002] Blown film is a plastic processing method that involves heating and melting plastic particles and then blowing them into a thin film. Typically, the polymer is extruded into a tubular preform, which is then blown to the required thickness using high-pressure air under good melt flow conditions. After cooling and shaping, it becomes a film. Once the plastic film has cooled, it needs to be wound up.
[0003] Currently, most existing winding devices use winding rollers to directly wind plastic film. Due to the lack of a tensioning mechanism, the plastic film lacks sufficient tension during winding, resulting in a loose film that is inconvenient for subsequent transportation and use. To address this issue, we propose a high-efficiency and energy-saving winding device for blown plastic film to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency and energy-saving plastic film blowing and winding device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A high-efficiency and energy-saving plastic film blowing and winding device includes a base plate, a fixed plate connected to the upper surface of the base plate, a winding mechanism installed on the front of the fixed plate, two upright plates connected to the upper surface of the base plate, a set of rotating bearings embedded on the side of the two upright plates that are close to each other, a rotating rod connected to the inner ring of each set of rotating bearings, a top plate connected to the upper surface of the two upright plates, two telescopic springs connected to the bottom surface of the top plate, a fixed block connected to the bottom end of the two telescopic springs, a fixed rod connected to the side of the two fixed blocks that are close to each other, and a rotating cylinder rotatably connected to the outer ring of the fixed rod.
[0007] In a further embodiment, the winding mechanism includes a drive motor, the output end of which is connected to a connecting rod, the front end of which is connected to a connecting disc, and the front side of which is connected to a winding roller.
[0008] In a further embodiment, an arc-shaped seat is connected to the upper surface of the base plate, and the upper surface of the arc-shaped seat is connected to the outer surface of the drive motor.
[0009] In a further embodiment, a control box is mounted on the front of one of the uprights, a display screen is mounted on the front of the control box, and a lighting lamp is mounted on the upper surface of the top plate.
[0010] In a further embodiment, a reinforcing base is connected to the front of one of the uprights, and the upper surface of the reinforcing base is connected to the bottom surface of the control box.
[0011] In a further embodiment, the bottom surface of the base plate is connected to two L-shaped connecting brackets, and each of the two L-shaped connecting brackets has mounting holes inside.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This device first uses two telescopic springs to drive two fixed blocks, fixed rods, and a rotating cylinder downwards. This allows the rotating cylinder to come into contact with one of the rotating rods, thereby pressing the plastic film on the surface of the rotating rod with the rotating cylinder. This, together with the previous set of rotating rods, provides good tension to the plastic film being wound up, thus preventing the plastic film from becoming loose during the winding process. Attached Figure Description
[0014] Figure 1 A three-dimensional structural schematic diagram of a high-efficiency and energy-saving plastic film blowing and winding device;
[0015] Figure 2 A side view of a high-efficiency and energy-saving plastic film blowing and winding device;
[0016] Figure 3 A top view of a high-efficiency and energy-saving plastic film blowing and winding device;
[0017] Figure 4 This is a top sectional view of a high-efficiency and energy-saving plastic film blowing and winding device.
[0018] In the diagram: 1. Base plate; 2. Fixing plate; 3. Winding mechanism; 301. Drive motor; 302. Connecting rod; 303. Connecting disc; 304. Winding roller; 4. Vertical plate; 5. Rotating bearing; 6. Rotating rod; 7. Top plate; 8. Telescopic spring; 9. Fixing block; 10. Fixing rod; 11. Rotating cylinder; 12. Arc-shaped seat; 13. Reinforcing seat; 14. Lighting lamp; 15. L-shaped connecting frame; 16. Mounting hole; 17. Control box; 18. Display screen. Detailed Implementation
[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4This utility model discloses a high-efficiency and energy-saving plastic film blowing and winding device, comprising a base plate 1, a fixing plate 2 connected to the upper surface of the base plate 1, a winding mechanism 3 mounted on the front of the fixing plate 2, two upright plates 4 connected to the upper surface of the base plate 1, a set of rotating bearings 5 embedded on the side of the two upright plates 4 that are close to each other, a rotating rod 6 connected to the inner ring of each set of rotating bearings 5, a top plate 7 connected to the upper surface of the two upright plates 4, two telescopic springs 8 connected to the bottom surface of the top plate 7, a fixing block 9 connected to the bottom end of the two telescopic springs 8, a fixing rod 10 connected to the side of the two fixing blocks 9 that are close to each other, a rotating cylinder 11 rotatably connected to the outer ring of the fixing rod 10, and a drive motor 301. The output end of the drive motor 301 is connected to a connecting rod 302, the front end of the connecting rod 302 is connected to a connecting disc 303, and the front side of the connecting disc 303 is connected to a winding roller 304. The drive motor 301 can drive the connecting rod 302 and the connecting disc 303 to rotate, which in turn drives the winding roller 304 to rotate. This allows the rotation of the winding roller 304 to quickly wind up the plastic film. Two telescopic springs 8 can drive two fixed blocks 9, fixed rods 10 and rotating drum 11 to descend, which allows the rotating drum 11 to tighten the plastic film on the surface of one of the rotating rods 6. This provides good tension to the plastic film being wound up.
[0023] An arc-shaped seat 12 is connected to the upper surface of the base plate 1. The upper surface of the arc-shaped seat 12 is connected to the outer surface of the drive motor 301. A control box 17 is installed on the front of one of the upright plates 4. A display screen 18 is installed on the front of the control box 17. A lighting lamp 14 is installed on the upper surface of the top plate 7. The arc-shaped seat 12 can support the drive motor 301, which can make the drive motor 301 run more stably. The lighting lamp 14 can provide good lighting effect when working at night.
[0024] One of the upright plates 4 has a reinforcing base 13 connected to its front side. The upper surface of the reinforcing base 13 is connected to the bottom surface of the control box 17. The bottom surface of the base plate 1 is connected to two L-shaped connecting brackets 15. The two L-shaped connecting brackets 15 are provided with mounting holes 16. The reinforcing base 13 can be used to reinforce the control box 17, so that the connection between the control box 17 and the upright plate 4 can be more secure. The L-shaped connecting brackets 15 and the mounting holes 16 can facilitate the workers to fix the device to the ground.
[0025] The working principle of this utility model is as follows:
[0026] When using this device, the operator first fixes the base plate 1 to the ground using the L-shaped connecting frame 15 and mounting holes 16, and then connects the device to an external power source. The operator then wraps one side of the plastic film around the outer surface of a set of rotating rods 6 and around the surface of the winding roller 304. The operator can then use the control box 17 to start the drive motor 301, which in turn rotates the connecting rod 302 and connecting disc 303. This, in turn, rotates the winding roller 304, allowing for rapid winding of the plastic film. During winding, the two telescopic springs 8 lower the two fixing blocks 9, the fixing rod 10, and the rotating drum 11. This allows the rotating drum 11 to press against the plastic film on one of the rotating rods 6, creating tension in the film and making the winding roller 304 wind the film more tightly. This is the complete operating procedure for this device.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A high-efficiency and energy-saving plastic film blowing and winding device, characterized in that: The system includes a base plate (1), a fixing plate (2) connected to the upper surface of the base plate (1), a winding mechanism (3) installed on the front of the fixing plate (2), two upright plates (4) connected to the upper surface of the base plate (1), a set of rotating bearings (5) embedded on the side of the two upright plates (4) that are close to each other, a rotating rod (6) connected to the inner ring of each set of rotating bearings (5), a top plate (7) connected to the upper surface of the two upright plates (4), two telescopic springs (8) connected to the bottom surface of the top plate (7), a fixing block (9) connected to the bottom end of the two telescopic springs (8), a fixing rod (10) connected to the side of the two fixing blocks (9) that are close to each other, and a rotating cylinder (11) rotatably connected to the outer ring of the fixing rod (10).
2. The high-efficiency and energy-saving plastic film blowing and winding device according to claim 1, characterized in that: The winding mechanism (3) includes a drive motor (301), the output end of which is connected to a connecting rod (302), the front end of which is connected to a connecting disc (303), and the front side of the connecting disc (303) is connected to a winding roller (304).
3. The high-efficiency and energy-saving plastic film blowing and winding device according to claim 1, characterized in that: The upper surface of the base plate (1) is connected to an arc-shaped seat (12), and the upper surface of the arc-shaped seat (12) is connected to the outer surface of the drive motor (301).
4. The high-efficiency and energy-saving plastic film blowing and winding device according to claim 1, characterized in that: A control box (17) is mounted on the front of one of the uprights (4), a display screen (18) is mounted on the front of the control box (17), and a lighting lamp (14) is mounted on the upper surface of the top plate (7).
5. The high-efficiency and energy-saving plastic film blowing and winding device according to claim 1, characterized in that: One of the upright plates (4) has a reinforcing base (13) connected to its front side, and the upper surface of the reinforcing base (13) is connected to the bottom surface of the control box (17).
6. The high-efficiency and energy-saving plastic film blowing and winding device according to claim 1, characterized in that: The bottom surface of the base plate (1) is connected to two L-shaped connecting brackets (15), and each of the two L-shaped connecting brackets (15) has an installation hole (16) inside.