Blank pressing device for bubble bag processing
By combining the conveying device and the heat sealing device, and using a combination of double heat sealing and heat sink, the problem of unstable bubble film connection in the existing technology is solved, achieving stable connection of bubble film and continuous processing, and reducing the scrap rate.
Patent Information
- Application Number
- CN202520021991.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-06
AI Technical Summary
In existing edge-pressing devices, the heat-sealing slicing piece only contacts the same position of the bubble wrap once, making it difficult to ensure a stable connection between the bubble wrap pieces, which may lead to connection breakage and increased scrap rate.
A conveying device was designed, comprising a heat sealing device, a limiting roller, and a guide roller. Through a combination of two heat sealing processes and a heat sink, the bubble film is ensured to move stably during the heat sealing process and to avoid thermal melting. A blade-shaped heat sealing blade is used to push the bubble film into the receiving groove for two heat sealing processes. Combined with the heat sink, heat is quickly dissipated to prevent the temperature from becoming too high.
This ensures stable bubble wrap connections, reduces scrap rates, guarantees the continuity and stability of the processing, and prevents thermal breakage.
Smart Images
Figure CN223644417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bubble bag processing technology, and in particular to a pressing device for bubble bag processing. Background Technology
[0002] Bubble bags are mainly used for cushioning packaging of electronic products, plastic products, metal products, ceramic products, glass products, and other products that require cushioning protection during logistics and transportation. They are mainly made of high-pressure polyethylene bubble film, which is cut into the required bag size and then joined together by pressing the edges of two bubble films together through heat cutting and heat pressing.
[0003] Most existing edge-sealing devices use a rotating heat-sealing slicing blade to press and rotate at the edge of the bubble wrap, connecting two bubble wraps into a whole. However, the heat-sealing slicing blade only passes through the bubble wrap once, making it difficult to ensure a stable connection between the bubble wraps. This may result in breakage points between the bubble wraps, and the bubble wrap at the breakage points will be damaged when processed into bubble bags, leading to an increase in the scrap rate. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, the purpose of this utility model is to solve the following problems in the existing technology: the heat-sealing slice only contacts the same position of the bubble film once, which makes it difficult to ensure a stable connection between the bubble films. Breaks may occur at the connection of the bubble films, which leads to an increase in the scrap rate in subsequent processing.
[0005] To solve the problems of the prior art, the technical solution of this utility model is as follows: it includes a conveying device, which is composed of baffles and a plurality of conveying rollers arranged between the baffles. A heat sealing device is provided on the side of the conveying device near the output end. The heat sealing device is composed of a rotating rod and heat sealing plates arranged at both ends of the rotating rod. Two limiting rollers are rotatably connected on the upper and lower sides of the conveying device near the heat sealing device. An annular receiving groove is opened on the side of the limiting rollers near the heat sealing plates of the heat sealing device. An extension plate is provided on the side of the baffle of the conveying device near the limiting rollers. A heat dissipation fin is provided on the part of the extension plate extending to the outside of the conveying device. A guide roller is provided on the bottom of the conveying device near the limiting rollers.
[0006] Furthermore, the heat sealing sheet of the heat sealing device has a blade-shaped end and extends into the receiving groove on the surface of the two limiting rollers. The blade-shaped part can concentrate heat to contact the bubble film, and the heat sealing sheet can push the bubble film into the receiving groove to concentrate heat.
[0007] Furthermore, the extension plate extends to the inner and outer sides of the conveying device respectively. The extension plate located inside the conveying device has a notch adapted to the limiting roller. The extension plate located inside the conveying device can support the stable conveying of the bubble film, so that the bubble film passing through the limiting roller moves stably.
[0008] Furthermore, the extension plate is flush with the conveying device and has a gap between it and the heat sealing device. The groove on the surface of the limiting roller is fitted with the heat sealing plate of the heat sealing device through the notch of the extension plate. The extension plate supports the bubble film. When the heat sealing device pushes the bubble film into the groove, the support of the extension plate causes the bubble film to generate tension, thereby tightening the bubble film. The tightened bubble film will not wrinkle when it comes into contact with the heat sealing device, thus optimizing the heat sealing effect.
[0009] Furthermore, the top and bottom of the heat-sealing sheet of the heat-sealing device extend into the receiving groove on the surface of the limiting roller, so that the heat-sealing device can contact both sides of the bubble film.
[0010] Furthermore, the conveying device is rotatably connected to the heat sealing device, the limiting roller, and the guide roller to ensure that the bubble film can be conveyed smoothly without resistance.
[0011] Compared with the prior art, the advantages of this utility model are as follows:
[0012] This invention guides the bubble wrap through a conveying device, moving it over the top of the heat-sealing device and then back over the bottom. During its passage over the top, the bubble wrap contacts the heat-sealing device and is pushed into a receiving groove on the surface of the limiting roller, where it undergoes a first heat-melting process. It then leaves and continues moving until it reaches the bottom of the heat-sealing device, where it undergoes a second heat-melting process. These two heat-melting processes ensure a stable connection between the bubble wrap pieces, and the sufficient distance between the two processes allows for cooling after the first heat-melting, preventing continuous contact with the heat-sealing device and thus avoiding melting. Furthermore, the heat continuously emitted by the heat-sealing device during operation can be quickly dissipated through heat sinks, preventing the overall structure from overheating and causing premature melting and adhesion of the bubble wrap. Finally, the bubble wrap leaving the heat-sealing device can be guided back by the guide rollers to change its movement path for subsequent processing, ensuring continuous processing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the internal structure of the conveying device of this utility model.
[0015] Figure 3 This is a schematic diagram of the receiving groove of this utility model.
[0016] Reference numerals: 1. Conveying device; 2. Heat sealing device; 3. Restricting roller; 4. Receiving groove; 5. Extension plate; 6. Heat sink; 7. Guide roller. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] like Figure 1-3 As shown, a pressing device for processing bubble bags includes a conveying device 1, which consists of baffles and a plurality of conveying rollers disposed between the baffles. A heat sealing device 2 is disposed on the side of the conveying device 1 near the output end. The heat sealing device 2 consists of a rotating rod and heat sealing sheets disposed at both ends of the rotating rod. Two limiting rollers 3 are rotatably connected to the upper and lower sides of the conveying device 1 near the heat sealing device 2. An annular receiving groove 4 is opened on the side of the limiting rollers 3 near the heat sealing sheet of the heat sealing device 2. The end of the heat sealing sheet of the heat sealing device 2 is blade-shaped and extends into the receiving groove 4 on the surface of the two limiting rollers 3. The blade-shaped part can concentrate heat to contact the bubble film, and the heat sealing sheet can push the bubble film into the receiving groove 4 to concentrate heat. The top and bottom of the heat sealing sheet of the heat sealing device 2 extend into the receiving groove 4 on the surface of the limiting rollers 3, so that the heat sealing device 2 can contact both sides of the bubble film.
[0019] An extension plate 5 is provided on the side of the baffle of the conveying device 1 near the limiting roller 3. The extension plate 5 extends to the inner and outer sides of the conveying device 1, respectively. The extension plate 5 located on the inner side of the conveying device 1 has a notch adapted to the limiting roller 3. The extension plate 5 located on the inner side of the conveying device 1 can support the stable conveying of the bubble film, allowing the bubble film to move stably after passing through the limiting roller 3. The extension plate 5 is flush with the conveying device 1 and has a gap between it and the heat sealing device 2. The receiving groove 4 on the surface of the limiting roller 3 fits with the heat sealing plate of the heat sealing device 2 through the notch of the extension plate 5. Plate 5 supports the bubble film. When the heat sealing device 2 pushes the bubble film into the receiving groove 4, the support of the extension plate 5 causes tension in the bubble film, thereby tightening the bubble film. The tightened bubble film will not wrinkle when it comes into contact with the heat sealing device 2, thus optimizing the heat sealing effect. The part of the extension plate 5 that extends to the outside of the conveying device 1 is provided with heat sink 6. The bottom of the conveying device 1 is provided with a guide roller 7 near the limiting roller 3. The conveying device 1 is rotatably connected to the heat sealing device 2, the limiting roller 3 and the guide roller 7 to ensure that the bubble film can be conveyed smoothly without resistance.
[0020] Working principle description: First, the bubble film moves in the conveying device 1. During the movement, it first passes between the top of the heat sealing device 2 and the limiting roller 3 at the top of the conveying device 1. During this process, the extension plate 5 lifts and restricts the bubble film located between the limiting roller 3 and the heat sealing device 2. The temperature of the heat sealing sheet of the heat sealing device 2 rises and pushes the bubble film into the receiving groove 4 on the surface of the limiting roller 3, and performs the first heat sealing on the bubble film.
[0021] After the first heat sealing, the bubble film continues to move and folds back along the conveyor 1, passing between the bottom of the heat sealing device 2 and the limiting roller 3 at the bottom of the conveyor 1, and repeats the above steps to perform a second heat sealing. When the bubble film after two heat sealings continues to move to the outside of the guide roller 7, it can be turned by the guide roller 7 and conveyed to the subsequent process for processing.
[0022] Furthermore, when the heat from the heat sealing device 2 continuously accumulates and radiates outward to increase the surrounding temperature, the temperature can be quickly dissipated outward through the heat sink 6 inside the extension plate 5, thus preventing the heat sealing sheet of the heat sealing device 2 from causing the processing environment temperature to be too high and the bubble film from melting prematurely before contact, resulting in irregular adhesion.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pressing device for processing bubble bags, comprising a conveying device, characterized in that: The conveying device consists of baffles and several conveying rollers arranged between the baffles. A heat sealing device is provided on the side of the conveying device near the output end. The heat sealing device consists of a rotating rod and heat sealing plates arranged at both ends of the rotating rod. Two limiting rollers are rotatably connected on the upper and lower sides of the conveying device near the heat sealing device. An annular receiving groove is opened on the side of the limiting rollers near the heat sealing plates of the heat sealing device. An extension plate is provided on the side of the baffle of the conveying device near the limiting rollers. A heat dissipation fin is provided on the part of the extension plate extending to the outside of the conveying device. A guide roller is provided on the bottom of the conveying device near the limiting rollers.
2. The edge-pressing device for bubble bag processing according to claim 1, characterized in that: The heat sealing sheet of the heat sealing device has a blade-shaped end and extends into the receiving groove on the surface of the two limiting rollers.
3. The edge-pressing device for bubble bag processing according to claim 1, characterized in that: The extension plate extends to the inner and outer sides of the conveying device, respectively, and the extension plate located on the inner side of the conveying device has a notch adapted to the limiting roller.
4. The edge-pressing device for bubble bag processing according to claim 3, characterized in that: The extension plate is flush with the conveying device and has a gap between it and the heat sealing device, and restricts the roller surface receiving groove to fit with the heat sealing plate of the heat sealing device through the notch of the extension plate.
5. The edge-pressing device for bubble bag processing according to claim 1, characterized in that: The top and bottom of the heat-sealing sheet of the heat-sealing device extend into the receiving groove on the surface of the extension roller.
6. The edge-pressing device for bubble bag processing according to claim 1, characterized in that: The conveying device is rotatably connected to the heat sealing device, the limiting roller, and the guide roller.