Preheating device of full-automatic soft film skin packaging machine
By designing a preheating device in the flexible film skin packaging machine to preheat and soften the skin film, the problem of the skin film not adhering to the packaged product is solved, resulting in higher quality packaging, eliminating air bubbles, achieving better adhesion, and improving packaging quality and effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI FANRUI MACHINERY CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-19
AI Technical Summary
In existing flexible film skin packaging machines, uneven surfaces of the packaged goods cause the skin film to not adhere properly to the surface, resulting in air bubbles and affecting the packaging quality and effect.
Design a preheating device for a fully automatic soft film skin packaging machine. The device uses a heating plate to preheat and soften the skin film. Heat is generated by an electric heating tube inside the heating plate and heated evenly through heating holes to ensure good adhesion between the skin film and the packaged product.
The preheating device allows the skin film to better adhere to the packaged material, improving packaging quality and effectiveness and eliminating air bubbles.
Smart Images

Figure CN224257124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging machine technology, specifically to a preheating device for a fully automatic soft film skin packaging machine. Background Technology
[0002] A flexible film skin packaging machine is a device that packages products using skin film. Skin film is a functional packaging material made primarily of PE film. During the packaging process, due to the uneven surface of the packaged goods, the skin film does not adhere properly to the surface of the packaged goods. When vacuum packaging is performed, air bubbles will be generated between the upper and lower packaging films, affecting the packaging quality and effect. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a preheating device for a fully automatic soft film skin packaging machine, which addresses the shortcomings of the prior art.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A preheating device for a fully automatic soft film skin packaging machine includes a support frame, a heating base plate and a heating plate inside the support frame, a cylinder mounting plate connecting the support frames, a cylinder mounted on the cylinder mounting plate, and the piston end of the cylinder connected to the back of the heating plate via a connector. A drive shaft, a driven shaft and a guide column are arranged above the support frame, and the drive shaft and the driven shaft are connected to the support frame via bearing seats. A motor is mounted on one side of the support frame, and the output shaft of the motor is connected to one end of the drive shaft. Drive sprockets are mounted at both ends of the drive shaft, and driven sprockets are mounted at both ends of the driven shaft. A support plate is arranged on the outside of the support frame, and a steering wheel is connected to the support plate. A chain is wound around the drive sprocket, the driven sprocket and the steering wheel.
[0006] Furthermore, a bottom support plate is connected between the brackets, and a heating base plate is mounted on the bottom support plate.
[0007] Furthermore, a guide shaft is mounted on the back of the heating plate, and a linear bearing is mounted on the cylinder mounting plate, with the guide shaft passing through the linear bearing.
[0008] Furthermore, an electric heating element is installed inside the heating plate, and heating holes are evenly distributed on the surface of the heating plate.
[0009] Furthermore, a chain bracket is installed on the bracket, and a chain guide groove is machined inside the chain bracket, with the chain set inside the chain guide groove.
[0010] Furthermore, a tension sprocket is mounted on the support plate, and the tension sprocket is connected to the chain.
[0011] Compared with the prior art, the preheating device of the fully automatic soft film skin packaging machine of this utility model preheats and softens the skin film by heating plate, so that the skin film can better fit the packaged items and ensure packaging quality. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a structural diagram of the back of this utility model;
[0014] Figure 3 This is a front structural diagram of the present invention;
[0015] Figure 4 yes Figure 3 Sectional view at point AA;
[0016] Among them, 1. bracket, 2. heating base plate, 3. heating plate, 4. bottom support plate, 5. cylinder mounting plate, 6. cylinder, 7. guide shaft, 8. linear bearing, 9. electric heating tube, 10. drive shaft, 11. driven shaft, 12. guide column, 13. motor, 14. drive sprocket, 15. driven sprocket, 16. bracket plate, 17. steering wheel, 18. chain, 19. tension sprocket, 20. chain bracket. Detailed Implementation
[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below.
[0018] like Figures 1-4 As shown, a preheating device for a fully automatic soft film skin packaging machine includes a support 1, a heating base plate 2 and a heating plate 3 disposed inside the support 1, wherein a bottom support plate 4 is connected between the support 1, the heating base plate 2 is mounted on the bottom support plate 4, the heating plate 3 is disposed above the heating base plate 2, a cylinder mounting plate 5 is connected between the support 1, a cylinder 6 is mounted on the cylinder mounting plate 5, the piston end of the cylinder 6 is connected to the back of the heating plate 2 through a connector, a guide shaft 7 is mounted on the back of the heating plate 3, and a linear bearing 8 is mounted on the cylinder mounting plate 5, the guide shaft 7 passes through the linear bearing 8.
[0019] In this embodiment, two support plates 4 are connected between the brackets 1. A cylinder 6 is installed in the middle of each support plate 4. The two cylinders 6 control the lifting and lowering of the heating plate 3. Linear bearings 8 are installed on both sides of the cylinders 6. Four guide shafts 7 are installed on the back of the heating plate 3. The guide shafts 7 all pass through the linear bearings 8, making the lifting and lowering of the heating plate 3 more stable.
[0020] The heating plate 3 is equipped with an electric heating tube 9, which generates heat. The surface of the heating plate 3 is evenly distributed with heating holes, which disperse the heat and make the heat uniformly heat and soften the adhesive film.
[0021] A drive shaft 10, a driven shaft 11, and a guide post 12 are arranged above the support 1. The drive shaft 10 and the driven shaft 11 are connected to the support 1 through bearing seats. A motor 13 is installed on one side of the support 1. The output shaft of the motor 13 is connected to one end of the drive shaft 10. Drive sprockets 14 are installed at both ends of the drive shaft 10. Drive sprockets 15 are installed at both ends of the driven shaft 11. A support plate 16 is arranged on the outside of the support 1. A steering wheel 17 is connected to the support plate 16. A chain 18 is wound between the drive sprockets 14, the driven sprockets 15, and the steering wheel 17. A tension sprocket 19 is installed on the support plate 16. The tension sprocket 19 is connected to the chain 18 and tensions the chain 18.
[0022] A chain bracket 20 is installed on the bracket 1. A chain guide groove is machined inside the chain bracket 20. The chain 18 is placed in the chain guide groove to restrain the chain and prevent the chain 18 from moving left or right.
[0023] When the preheating device is working, the body film passes through the surface of the guide post 12, driven shaft 11, and transmission shaft 10. The transmission shaft 10 pulls the body film between the heating base plate 2 and the heating plate 3. The heating holes on the heating plate heat and soften the body film evenly.
[0024] This utility model is not limited to the embodiments described. Those skilled in the art can still make some modifications or changes without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model shall be determined by the scope defined in the claims.
Claims
1. A preheating device for a fully automatic soft film skin packaging machine, characterized in that: The device includes a support frame, within which a heating base plate and a heating plate are installed. A cylinder mounting plate connects the support frames, and a cylinder is mounted on the mounting plate. The piston end of the cylinder is connected to the back of the heating plate via a connector. A drive shaft, a driven shaft, and a guide post are installed above the support frame. The drive shaft and the driven shaft are connected to the support frame via bearing seats. A motor is installed on one side of the support frame, and the output shaft of the motor is connected to one end of the drive shaft. Drive sprockets are installed at both ends of the drive shaft, and driven sprockets are installed at both ends of the driven shaft. A support plate is installed on the outside of the support frame, and a steering wheel is connected to the support plate. A chain is wound around the drive sprocket, the driven sprocket, and the steering wheel.
2. The preheating device for a fully automatic soft film skin packaging machine according to claim 1, characterized in that: A bottom support plate is connected between the brackets, and a heating base plate is installed on the bottom support plate.
3. The preheating device for a fully automatic soft film skin packaging machine according to claim 1, characterized in that: A guide shaft is mounted on the back of the heating plate, and a linear bearing is mounted on the cylinder mounting plate, with the guide shaft passing through the linear bearing.
4. The preheating device for a fully automatic soft film skin packaging machine according to claim 1, characterized in that: The heating plate is equipped with an electric heating element, and heating holes are evenly distributed on the surface of the heating plate.
5. The preheating device for a fully automatic soft film skin packaging machine according to claim 1, characterized in that: A chain bracket is installed on the bracket, and a chain guide groove is machined inside the chain bracket, with the chain set inside the chain guide groove.
6. The preheating device for a fully automatic soft film skin packaging machine according to claim 1, characterized in that: A tension sprocket is mounted on the support plate, and the tension sprocket is connected to the chain.