A foreign matter cleaning device for food packaging bags

Abstract

The utility model provides a kind of food packaging bag foreign matter cleaning device, it is related to packaging box foreign matter cleaning technology, specifically discloses the mounting bracket installed on conveying mechanism, one side of mounting bracket is equipped with several support frames, the side of support frame away from mounting bracket is all equipped with scraper, the free end of scraper is in abutment with the transmission surface of conveying mechanism, the other side of mounting bracket is equipped with mounting plate, several nozzle structures are equidistantly installed on the side wall of mounting plate, gas pipeline is installed on mounting plate, nozzle structure is all communicated with gas pipeline, gas pipeline is communicated with the gas supply equipment of outside, the foreign matter of large or strong adhesion force is physically scraped by scraper, so that the interference caused by the foreign matter or oil stain at sealing path does not exist to heat sealing effect, nozzle further blows off residual or unscraped debris using high-speed airflow.

Description

Technical Field

[0001] This utility model relates to the field of foreign object removal technology for packaging boxes, and more specifically, to a foreign object removal device for food packaging bags. Background Technology

[0002] In the food packaging manufacturing industry, heat sealing is a crucial step in ensuring product airtightness and safety. During transportation, the sealing path (i.e., the heat-sealed area) of packaging boxes is prone to accumulating foreign matter such as debris, oil stains, or dust remaining in the production environment. If foreign matter is present at the seal, it will directly lead to insufficient contact of the heat-sealing material, causing reduced sealing strength, poor sealing, or even leakage, seriously affecting food safety and shelf life.

[0003] Therefore, there is an urgent need to develop an automated foreign matter cleaning device that can operate continuously and efficiently, and has strong removal and peeling capabilities, in order to meet the high cleanliness requirements of the food packaging industry. Utility Model Content

[0004] The purpose of this utility model is to provide a foreign object cleaning device for food packaging bags, which addresses the shortcomings of the existing technology and solves the problems mentioned in the background.

[0005] The technical solution of this utility model is implemented as follows: This utility model provides a foreign object cleaning device for food packaging bags, including a mounting frame installed on a conveying mechanism. Several support frames are installed on one side of the mounting frame, and scrapers are installed on the side of the support frames away from the mounting frame. The free end of the scraper abuts against the transmission surface of the conveying mechanism. A mounting plate is installed on the other side of the mounting frame. Several nozzle structures are installed at equal intervals on the side wall of the mounting plate. An air supply pipe is installed on the mounting plate, and the nozzle structures are all connected to the air supply pipe. The air supply pipe is connected to an external air supply device.

[0006] In some technical solutions of this utility model, both ends of the scraper are provided with roller structures that rotate, and a cleaning belt connected end to end is fitted on the two roller structures. The scraper is provided with a drive motor that is connected to one of the roller structures.

[0007] In some technical solutions of this utility model, the mounting frame is provided with a cleaning structure for cleaning the cleaning belt.

[0008] In some technical solutions of this utility model, the cleaning structure includes a cleaning groove installed on the mounting frame, and a plurality of cleaning plates corresponding one-to-one with the cleaning belt are installed on the inner wall of the cleaning groove, with the free end of the cleaning plate abutting against its corresponding cleaning belt.

[0009] In some technical solutions of this utility model, the mounting plate is inclinedly disposed on the side wall of the mounting frame.

[0010] In some technical solutions of this utility model, a solenoid valve is installed at the connection between the nozzle structure and the gas delivery pipeline.

[0011] In some technical solutions of this utility model, the air inlet of the nozzle structure is rectangular.

[0012] In some technical solutions of this utility model, an adsorption tube is provided on the side wall of the cleaning plate, the inlet of the adsorption tube abuts against the cleaning belt, and the adsorption tube is connected to an external negative pressure device.

[0013] Compared to existing technologies, this invention has at least the following advantages or beneficial effects: the scraper physically removes larger or more adhesive foreign objects, ensuring that no foreign objects or oil stains interfere with the heat-sealing effect at the sealing path; the nozzle uses high-speed airflow to further blow away residual or unremoved debris. The airflow generated by the scraper and nozzle structure sweeps away foreign objects located on the sealing path of the packaging box, preventing foreign objects from appearing on the sealing path during film application and edge sealing, thus avoiding poor sealing. The combination of physical scraping and airflow impact significantly improves the foreign object removal rate and cleanliness. The scraper and nozzle are modularly integrated above the conveying mechanism, allowing for automated cleaning without interrupting the conveying of the packaging box, thus accelerating the cleaning effect and efficiency of this structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the installation structure of the scraper and nozzle in this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the cleaning belt in this utility model.

[0016] Figure 3 This is a side view of the cleaning belt structure in this utility model.

[0017] Figure 4 This is a side view of the scraper structure in this utility model.

[0018] Figure 5 This is a schematic diagram of the nozzle structure in this utility model.

[0019] Figure 6 This is a schematic diagram of the installation structure of the solenoid valve in this utility model.

[0020] Reference numerals: 1. Mounting bracket; 2. Cleaning trough; 3. Support frame; 4. Mounting plate; 5. Cleaning belt; 6. Branch pipe; 7. Solenoid valve; 8. Gas supply pipe; 9. Scraper; 10. Roller structure; 11. Nozzle structure; 12. Drive motor; 13. Cleaning plate; 14. Adsorption tube. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0023] Example 1 This utility model provides a foreign matter removal device for food packaging bags, such as... Figures 1-6 As shown, the system includes a mounting frame 1 installed on a conveying mechanism. The mounting frame 1 is fixed to the frame inside the conveying mechanism by bolts. Several support frames 3 are installed on one side of the mounting frame 1. The support frames 3 are integrally formed with the mounting frame 1. Scrapers 9 are installed on the side of the support frames 3 opposite to the mounting frame 1. The scrapers 9 are fixed to the support frames 3 by straps or buckles. After a period of use, they can be removed from the side wall of the support frames 3 for easy cleaning. The free end of the scraper 9 abuts against the transmission surface of the conveying mechanism, so that the scraper 9 physically scrapes away larger or more adhesive foreign objects, ensuring that there are no foreign objects or oil stains at the sealing path that would interfere with the heat sealing effect. A mounting plate 4 is installed on the other side of the mounting frame 1. Several nozzle structures 11 are installed at equal intervals on the side wall of the mounting plate 4. An air supply pipe 8 is installed on the mounting plate 4. The nozzle structures 11 are all connected to the air supply pipe 8 through branch pipes 6. The air supply pipe 8 is connected to an external air supply device. The nozzles use high-speed airflow to further blow away residual or unscraped debris. The airflow generated by the scraper 9 and the nozzle structure 11 sweeps away foreign objects located on the sealing path of the packaging box, preventing foreign objects from appearing on the sealing path during the film application and sealing process, thus avoiding problems with poor sealing of the packaging box. The combination of physical scraping and airflow impact significantly improves the removal rate and cleanliness of foreign objects. The scraper 9 and the nozzle structure 11 are integrated above the conveying mechanism, and the automated cleaning does not require interruption of the packaging box conveying, thus accelerating the cleaning effect and efficiency of this structure on the packaging box.

[0024] In some technical solutions of this utility model, both ends of the scraper 9 are equipped with rotatable roller structures 10. A cleaning belt 5, connected end-to-end, is fitted onto the two roller structures 10. The scraper 9 is equipped with a drive motor 12 that is connected to one of the roller structures 10. The cleaning belt 5 circulates under the drive of the active rollers, continuously and flexibly removing foreign objects. Its contact surface with the packaging box is constantly renewed. The moving cleaning belt 5 reduces the accumulation and blockage of foreign objects in the sealing path, improving the efficiency of continuous foreign object removal. Furthermore, the flexible cleaning belt 5 is gentler than the hard scraper 9, less likely to scratch the packaging surface, and makes more thorough contact with the packaging box, avoiding localized omissions and improving the cleaning effect.

[0025] In some technical solutions of this utility model, the mounting frame 1 is provided with a cleaning structure for cleaning the cleaning strip 5. The additional cleaning structure enables the cleaning strip 5 to self-clean, removes foreign objects attached to the cleaning strip 5, ensures that the sealing path of the cleaning strip 5 is clean every time it comes into contact with the packaging box, and prevents foreign objects from moving along the sealing path and causing secondary contamination to the sealing strip.

[0026] Example 2 The following improvements were made based on Example 1: In some technical solutions of this utility model, the cleaning structure includes a cleaning groove 2 installed on the mounting frame 1. The cleaning groove 2 provides temporary storage space to prevent foreign objects from scattering and polluting the environment. Several cleaning plates 13, corresponding one-to-one with the cleaning belts 5, are installed on the inner wall of the cleaning groove 2. The free ends of the cleaning plates 13 abut against their corresponding cleaning belts 5. The cleaning plates 13 physically scrape and peel off foreign objects located on the cleaning belts 5, and collect the foreign oil stains in the cleaning groove 2 through the flow channels formed by the cleaning plates 13. The direct contact between the cleaning plates 13 and the cleaning belts 5 ensures a good removal effect on larger or stubborn foreign objects attached to the cleaning belts 5.

[0027] Example 3 The following improvements were made based on Example 1: In some technical solutions of this utility model, the mounting plate 4 is inclinedly disposed on the side wall of the mounting frame 1. The mounting plate 4 is installed at a certain angle relative to the conveying surface, so that the nozzle jet direction forms an inclined spray rather than a vertical impact. The jet airflow forms a tangential component force on the surface of the packaging box along the conveying direction or in the opposite direction, which promotes the peeling and displacement of foreign objects, reduces the energy consumption of the air source, and the tangential airflow can "sweep away" foreign objects that have been loosened by the scraper 9 but have not fallen off.

[0028] In some technical solutions of this utility model, a solenoid valve 7 is installed at the connection between the nozzle structure 11 and the air supply pipe 8. The solenoid valve 7 is a conventional technical means. By controlling the solenoid valve 7 to open and close, the opening and closing timing of each nozzle or the airflow pulsation frequency can be flexibly adjusted, and air is supplied only at the effective cleaning position, which significantly reduces compressed air consumption. Furthermore, the intermittent supply of high-pressure airflow under different working conditions can improve the peeling effect of this structure on adhering foreign matter.

[0029] In some technical solutions of this utility model, the air inlet of the nozzle structure 11 is rectangular. The rectangular nozzle outlet shapes the airflow into a flat fan-shaped jet, which laterally covers a specific width area on the surface of the packaging box, improving the cleaning efficiency and action path of this structure.

[0030] Example 4 The following improvements were made based on Example 2: In some technical solutions of this utility model, an adsorption tube 14 is provided on the side wall of the cleaning plate 13. The inlet of the adsorption tube 14 abuts against the cleaning belt 5, and the adsorption tube 14 is connected to an external negative pressure device. When the cleaning plate 13 scrapes off foreign objects, the inlet of the adsorption tube 14 is in close contact with the cleaning belt 5, and the negative pressure device instantly sucks away the scraped foreign objects, avoiding secondary adhesion of the scraped foreign objects to the cleaning belt 5 or scattering and polluting the equipment environment, as well as preventing the accumulation of foreign objects in the cleaning tank 2, reducing the frequency of manual cleaning, and the sucked-away foreign objects can directly enter the collection system to achieve zero residue.

[0031] Preferably, the adsorption tube 14 can be selectively disposed on the upper or lower side of the cleaning plate 13.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A foreign matter removal device for food packaging bags, characterized in that, The system includes a mounting frame (1) installed on a conveying mechanism. Several support frames (3) are installed on one side of the mounting frame (1). Each support frame (3) has a scraper (9) installed on the side away from the mounting frame (1). The free end of the scraper (9) abuts against the conveying surface of the conveying mechanism. A mounting plate (4) is installed on the other side of the mounting frame (1). Several nozzle structures (11) are installed at equal intervals on the side wall of the mounting plate (4). An air supply pipe (8) is installed on the mounting plate (4). Each nozzle structure (11) is connected to the air supply pipe (8). The air supply pipe (8) is connected to an external air supply device.

2. The foreign matter removal device for food packaging bags according to claim 1, characterized in that, Both ends of the scraper (9) are provided with roller structures (10) that rotate. Cleaning belts (5) connected end to end are fitted on the two roller structures (10). The scraper (9) is provided with a drive motor (12) that is connected to one of the roller structures (10).

3. The foreign matter cleaning device for food packaging bags according to claim 2, characterized in that, The mounting bracket (1) is provided with a cleaning structure for cleaning the cleaning belt (5).

4. The foreign matter cleaning device for food packaging bags according to claim 3, characterized in that, The cleaning structure includes a cleaning groove (2) installed on the mounting frame (1). A plurality of cleaning plates (13) corresponding one-to-one with the cleaning strip (5) are installed on the inner wall of the cleaning groove (2). The free end of the cleaning plate (13) abuts against its corresponding cleaning strip (5).

5. A foreign matter cleaning device for food packaging bags according to claim 1, characterized in that, The mounting plate (4) is inclinedly disposed on the side wall of the mounting frame (1).

6. The foreign matter cleaning device for food packaging bags according to claim 1, characterized in that, Solenoid valves (7) are installed at the connection between the nozzle structure (11) and the gas pipeline (8).

7. The foreign matter cleaning device for food packaging bags according to claim 1, characterized in that, The air inlet of the nozzle structure (11) is rectangular.

8. A foreign matter cleaning device for food packaging bags according to claim 4, characterized in that, An adsorption tube (14) is provided on the side wall of the cleaning plate (13). The inlet of the adsorption tube (14) abuts against the cleaning belt (5). The adsorption tube (14) is connected to the negative pressure equipment of the outside.

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