Rolled film anti-adhesion device of packaging machine

Abstract

The utility model discloses a roll film anti-adhesion device of a packaging machine, which relates to the technical field of packaging machines and comprises two vertical plates which are vertically arranged at an interval, an unwinding roller used for unwinding a film layer is arranged between the two vertical plates, a rotating shaft is arranged below the unwinding roller, a scraper blade used for preventing the film layer from adhesion is arranged in the middle of the rotating shaft, and the scraper blade is connected with the unwinding roller. The tail end of the scraper extends upwards to the unwinding front side of the unwinding roller, the two ends of the rotating shaft are connected with the vertical plates correspondingly, and a driving mechanism used for driving the rotating shaft to rotate is further arranged on the vertical plate on any side. According to the utility model, the scraping plate and the driving mechanism capable of adjusting the scraping plate are arranged, so that the problem of packaging wastes caused by adhesion of the roll film in the unwinding process is effectively prevented, and the packaging effect is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a roll film anti-sticking device for packaging machines. Background Technology

[0002] As a widely popular snack food, the improvement of packaging technology has always been a key focus of the industry. Vertical puffing packaging machines, a common type of puffed food packaging equipment, are widely used in the food industry, especially in packaging puffed products. They enable efficient and rapid packaging processes. Their working principle involves an automated system that completes operations such as product metering, filling, sealing, and cutting to achieve efficient and neat packaging results.

[0003] Existing puffed vertical packaging machines typically consist of a material supply system, a film conveying system, a sealing system, a cutting system, and a control system. The film conveying system is the core component, responsible for pulling, flattening, and sealing the packaging film roll. In operation, large rolls of film are generally used, mechanically stretched and then applied to the packaging material to complete the packaging process. However, in practice, due to the large size and weight of the film rolls, some layers may stick together during the rolling process due to prolonged storage or improper handling. These stuck sections often require considerable force to separate, causing the packaging machine to malfunction. This is especially problematic in puffed food packaging, where precise and gentle film stretching is essential. Sticking not only affects packaging efficiency but can also lead to film tearing or air bubbles, impacting packaging quality and potentially causing equipment malfunctions or downtime, thus significantly negatively impacting the overall efficiency of the production line.

[0004] In view of this, the inventor conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0005] This utility model provides a film roll anti-sticking device for packaging machines, which aims to solve the problem that existing packaging machines easily stick together when unwinding film rolls, thus affecting the packaging effect.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A film anti-sticking device for a packaging machine includes two vertically spaced upright plates. An unwinding roller for unwinding film is provided between the two upright plates. A rotating shaft is provided below the unwinding roller. A scraper for preventing film adhesion is provided in the middle of the rotating shaft. The end of the scraper extends upward to the unwinding front side of the unwinding roller. Both ends of the rotating shaft are respectively connected to the upright plates. A drive mechanism for driving the rotating shaft to rotate is also provided on one of the upright plates.

[0008] Furthermore, the scraper includes a scraper body fixedly connected to the rotating shaft and a scraper blade disposed at the end of the scraper body, the scraper blade being inclined relative to the scraper body.

[0009] Furthermore, the scraper portion is shovel-shaped or rectangular, and the width of the scraper portion is greater than the width of the scraper body portion.

[0010] Furthermore, the aforementioned drive mechanism includes a worm gear mounted on the aforementioned rotating shaft, a mounting base fixedly mounted above the worm gear, a worm passing through the aforementioned mounting base and meshing with the aforementioned worm gear, and a handwheel for driving the aforementioned worm to rotate.

[0011] Furthermore, two vertically spaced mounting plates are provided on one side of the aforementioned upright plate, and a guide roller for guiding the film layer is provided between the two mounting plates. Adjustment blocks are provided at both ends of the guide rollers, and an adjustment groove for the adjustment blocks to enter is opened in the middle of the two mounting plates. A spring is fixedly provided on the top wall of each adjustment groove, and the end of the spring is fixedly connected to the top surface of the adjustment block.

[0012] As can be seen from the above description of the structure of this utility model, this utility model has the following advantages:

[0013] Firstly, this utility model effectively prevents packaging waste caused by film sticking during unwinding by setting a scraper and an adjustable drive mechanism. In use, the scraper can pull the film layer apart in advance, and by adjusting the distance between the scraper and the film layer, it ensures that sticking is continuously and effectively prevented under different unwinding conditions, thereby improving production efficiency, reducing the frequency of equipment downtime maintenance, and significantly improving packaging effect.

[0014] Secondly, this invention features two vertically spaced mounting plates on one side of a vertical plate, with guide rollers for guiding the film layer between them. Adjustable blocks are located at both ends of the guide rollers, and their positions can be adjusted within adjustment grooves on the mounting plates. A spring is fixed to the top wall of each adjustment groove, with the end of the spring connected to the top surface of the adjustment block. During use, when the film layer is mechanically stretched, the guide rollers move upwards, and the spring's rebound force resets the guide rollers, effectively improving the smoothness of film unwinding. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the scraper and rotating shaft of this utility model.

[0017] Figure 3 This is a schematic diagram of the scraper of this utility model.

[0018] Reference numerals: 10-vertical plate; 20-unwinding roller; 30-rotating shaft; 40-scraper; 41-scraper body; 42-scraper blade; 51-worm gear; 52-mounting base; 53-worm; 54-handwheel; 60-mounting plate; 61-adjusting groove; 62-spring; 70-guide roller; 71-adjusting block. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0020] Reference Figure 1 A film roll anti-sticking device for a packaging machine includes two vertically arranged, spaced-apart uprights 10. An unwinding roller 20 for unwinding the film is positioned between the two uprights 10. A rotatable shaft 30 is located below the unwinding roller 20. A scraper 40 for preventing film sticking is located in the middle of the shaft 30. The end of the scraper 40 extends upwards to the unwinding front side of the unwinding roller 20, which is the direction of film unwinding. Both ends of the shaft 30 are connected to the uprights 10, and a drive mechanism for rotating the shaft 30 is also provided on either upright 10. In use, as the unwinding roller 20 rotates, the scraper 40 can pull the film roll apart in advance, preventing packaging waste caused by film sticking. Simultaneously, as the film roll is continuously unwound, the drive mechanism can rotate the shaft 30, thereby adjusting the distance between the scraper 40 and the film roll to ensure that the scraper 40 can continuously and effectively prevent sticking.

[0021] Reference Figures 1 to 3 The scraper 40 is made of food-grade stainless steel and includes a scraper body 41 fixedly connected to the rotating shaft 30 and a scraper blade 42 disposed at the end of the scraper body 41. The scraper blade 42 is inclined relative to the scraper body 41 and is shovel-shaped or rectangular. In this embodiment, the scraper blade 42 is preferably shovel-shaped, and the width of the scraper blade 42 is greater than the width of the scraper body 41. In use, the scraper blade 42 is located below the unwinding front side of the unwinding roller 20, and there is a certain gap between the end of the scraper blade 42 and the unwinding roller 20. In this way, during the unwinding process, the unwound film will contact the front side of the end of the scraper blade 42, thereby effectively preventing the unwound film from sticking to the unwound film on the unwinding roller 20, ensuring that the film can be stretched smoothly. At the same time, the shovel-shaped scraper blade 42 design increases the contact area with the film, further improving the effect of preventing film adhesion, thereby ensuring the smoothness and efficiency of the packaging process.

[0022] Reference Figure 1The drive mechanism includes a worm gear 51 mounted on a rotating shaft 30, a mounting base 52 fixedly mounted above the worm gear 51, a worm 53 passing through the mounting base 52 and meshing with the worm gear 51, and a handwheel 54 for driving the worm 53 to rotate. In this embodiment, there are two mounting bases, which are fixedly mounted on the upright plate 10 at intervals. In use, the worm 53 can be driven to rotate by rotating the handwheel 54, thereby driving the worm gear 51 and the rotating shaft 30 to rotate, and then driving the scraper 40 to rotate. This allows for flexible adjustment of the distance between the scraper part 42 and the unwinding roller 20 to adapt to different unwinding processes and ensure that the film layer can be unwound evenly and smoothly.

[0023] Reference Figures 1 to 3 Two vertically arranged mounting plates 60 are provided on one side of the upright plate 10. A guide roller 70 for guiding the film layer is provided between the two mounting plates 60. Adjusting blocks 71 are provided at both ends of the guide roller 70. An adjustment groove 61 for the adjustment blocks 71 to enter is opened in the middle of the two mounting plates 60. A spring 62 is fixedly installed on the top wall of each adjustment groove 61, and the end of the spring 62 is fixedly connected to the top surface of the adjustment block 71. In application, when the film layer is mechanically stretched, the guide roller 70 moves upward accordingly. Then, the spring 62 returns the guide roller 70 to its original position through its rebound force, thereby improving the smoothness of film unwinding and preventing film jamming due to unstable position of the guide roller 70.

[0024] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A film roll anti-sticking device for a packaging machine, characterized in that: It includes two vertically spaced upright plates, with an unwinding roller for unwinding a film layer between the two upright plates. A rotating shaft is located below the unwinding roller, and a scraper for preventing film layer adhesion is located in the middle of the rotating shaft. The end of the scraper extends upward to the front side of the unwinding roller. Both ends of the rotating shaft are connected to the upright plates respectively, and a drive mechanism for driving the rotating shaft to rotate is also provided on either upright plate.

2. The anti-sticking device for the packaging machine according to claim 1, characterized in that: The scraper includes a scraper body fixedly connected to the rotating shaft and a scraper blade disposed at the end of the scraper body, the scraper blade being inclined relative to the scraper body.

3. The anti-sticking device for the packaging machine according to claim 1, characterized in that: The scraper part is shovel-shaped or rectangular, and the width of the scraper part is greater than the width of the scraper body.

4. The anti-sticking device for the film roll of the packaging machine according to any one of claims 1 to 3, characterized in that: The drive mechanism includes a worm gear mounted on the rotating shaft, a mounting base fixedly mounted above the worm gear, a worm passing through the mounting base and meshing with the worm gear, and a handwheel for driving the worm gear to rotate.

5. The anti-sticking device for the packaging machine according to claim 1, characterized in that: Two vertically spaced mounting plates are provided on one side of the upright plate. A guide roller for guiding the film layer is provided between the two mounting plates. Adjustment blocks are provided at both ends of the guide roller. An adjustment groove for the adjustment block to enter is opened in the middle of the two mounting plates. A spring is fixedly provided on the top wall of each adjustment groove. The end of the spring is fixedly connected to the top surface of the adjustment block.

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