A meal box trimming device facilitating powder cleaning

Abstract

The utility model discloses a meal box trimming device convenient to powder clearance, include: operation panel, the upper side of operation panel is provided with servo motor, and servo motor's output shaft is fixedly connected with the rotation axis, and the upper side of operation panel is provided with the ear plate, still include: the upper side of operation panel is provided with the adjusting mechanism for the convenient trimming, the lower side of operation panel is provided with the collection mechanism for processing powder, this meal box trimming device convenient to powder clearance, electric telescopic link one promotes extrusion disc movement, and cooperation clamping meal box body with spacing block, and servo motor drives rotation axis and meal box body rotation, guarantees trimming even, rotates one -way screw rod, trimming knife slides along the spacing rod, adjusts longitudinal position, adapts different specifications meal box, and the powder produced in trimming falls into the powder collection groove, and the suction pump passes through pipeline and inhales the powder into the collection box, and the filter plate filters the powder, avoids the suction pump block, to reach the purpose of being convenient for cleaning powder.

Description

Technical Field

[0001] This utility model relates to the field of lunch box technology, specifically a lunch box trimming device that facilitates powder removal. Background Technology

[0002] Plastic lunch boxes are portable containers made of food-grade plastics (such as polypropylene (PP), polyethylene (PE), and polystyrene (PS), primarily used for takeout or food storage. During injection molding or thermoforming, burrs and flash may occur at the edges of the lunch boxes due to mold gaps or uneven material flow. These imperfections not only affect the appearance but may also cut the user's fingers. Edge trimming is an indispensable part of the production process; it improves product quality, safety, and production efficiency through meticulous processing, while also meeting environmental and compliance requirements. As consumers pay increasing attention to food safety and packaging experience, the precision and automation level of edge trimming processes are constantly being upgraded, becoming a crucial indicator of competitiveness in the lunch box industry.

[0003] However, manual trimming relies on human operation, which not only makes it difficult to ensure consistent trimming quality for each lunchbox, but also easily leads to an increase in defective products due to differences in operation, and the overall production efficiency is extremely low. While mechanical trimming can improve efficiency to some extent, it requires customized blades for specific lunchbox structures, which is costly. Especially when dealing with lunchboxes with complex structures and varied edges, its adaptability is greatly reduced, making it difficult to flexibly meet diverse needs, and it is inconvenient to clean up the dust generated during trimming. Therefore, there is still room for further improvement.

[0004] Therefore, we propose a lunchbox trimming device that facilitates powder removal in order to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a lunchbox trimming device that facilitates powder removal, addressing the shortcomings of manual trimming in the background art. Manual trimming relies on manual operation, which not only makes it difficult to ensure consistent trimming quality for each lunchbox but also easily leads to an increase in defective products due to operational variations, resulting in extremely low overall production efficiency. While mechanical trimming can improve efficiency to some extent, it requires customized blades for specific lunchbox structures, leading to high costs. Especially when dealing with lunchboxes with complex structures and varied edges, its adaptability is greatly reduced, making it difficult to flexibly meet diverse needs. Furthermore, it is inconvenient to clean up the powder generated during trimming. Therefore, there is still room for further improvement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lunchbox trimming device for easy powder removal, comprising: The control panel has a servo motor on its upper side, and the output shaft of the servo motor is fixedly connected to the rotating shaft. The upper side of the control panel also has an ear plate. Also includes: The upper side of the operating table is provided with an adjustment mechanism for convenient trimming, and the ear plate is symmetrical about the vertical central axis of the operating table. The lower side of the operating table is equipped with a powder collection mechanism and an air pump.

[0007] Preferably, the adjustment mechanism is composed of a limiting block, an electric telescopic rod, an extrusion plate, a bidirectional threaded rod, and a moving block. The limiting block is fixedly connected to the rotating shaft, and the electric telescopic rod is fixedly connected to the upper front of the operating table through a vertical plate. A powder collection trough is provided on the upper side of the operating table.

[0008] Preferably, the output end of the electric telescopic rod is rotatably connected to the extrusion plate, and the extrusion plate is tightly fitted to the lunch box body, and the rear side of the lunch box body is tightly fitted to the limiting block.

[0009] Preferably, the bidirectional threaded rod is rotatably connected to the ear plate, and the right side of the bidirectional threaded rod is fixedly connected to the rotating handle. The bidirectional threaded rod is also threadedly connected to the moving block, and the moving block is symmetrical about the vertical central axis of the operating table.

[0010] Preferably, the movable block is slidably connected to the limiting rod, and the limiting rod is fixedly connected to the ear plate, and the limiting rod is symmetrical about the vertical central axis of the ear plate.

[0011] Preferably, the limiting rod is rotatably connected to the one-way threaded rod, and the one-way threaded rod is threadedly connected to the trimming knife, while the trimming knife is slidably connected to the limiting rod.

[0012] Preferably, the collection mechanism is composed of a powder collection tank, a collection box, a filter plate, an electric telescopic rod, a cleaning rod, and an air pump. The collection box is located on the lower side of the operating table, and a filter plate is installed inside the collection box, with the side of the filter plate closely fitted to the cleaning rod.

[0013] Preferably, the cleaning rod is fixedly connected to the output end of the electric telescopic rod two, and the electric telescopic rod two is fixedly connected to the inside of the collection box, and the collection box is connected to the air pump through a pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This lunch box trimming device that facilitates powder cleaning has an electric telescopic rod that pushes the extrusion plate to move, which cooperates with the limiting block to clamp the lunch box body. The servo motor drives the rotating shaft and the lunch box body to rotate, ensuring uniform trimming. Rotating the one-way threaded rod causes the trimming knife to slide along the limiting rod, adjusting the longitudinal position to adapt to different lunch boxes. The powder generated during trimming falls into the powder collection tank. The air pump sucks the powder into the collection box through the pipe. The filter plate filters the powder to prevent the air pump from clogging, thereby achieving the purpose of facilitating powder cleaning. 1. It is equipped with an electric telescopic rod, a pressing plate and a limiting block. The electric telescopic rod pushes the pressing plate to move and cooperates with the limiting block to clamp the lunch box body. The servo motor drives the rotating shaft and the lunch box body to rotate to ensure uniform trimming. 2. It is equipped with an operating table, ear plates and limit rods. The operating table provides the installation base for each component, and the ear plates fix the bidirectional threaded rod and the limit rod to ensure the stability of the adjustment mechanism and improve the overall stability of the device. 3. It is equipped with a rotating handle, a two-way threaded rod, and a trimming knife. Rotating the rotating handle drives the two-way threaded rod to rotate, and the moving block slides along the two-way threaded rod, which works in conjunction with the limit rod to limit and adjust the lateral position of the trimming knife; rotating the one-way threaded rod causes the trimming knife to slide along the limit rod to adjust the longitudinal position, adapting to different sizes of lunch boxes. 4. It is equipped with a powder collection tank, a collection box and an air pump. The powder generated during trimming falls into the powder collection tank, and the air pump sucks the powder into the collection box through the pipeline. The filter plate filters the powder to prevent the air pump from getting clogged. 5. Equipped with an electric telescopic rod II, a cleaning rod, and a filter plate. The electric telescopic rod II drives the cleaning rod to move and clean the powder adhering to the surface of the filter plate, ensuring that the collection mechanism works continuously and efficiently. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the left-side structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the movable block of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model from below; Figure 4 This is a schematic diagram of the connection structure between the filter plate and the electric telescopic rod of this utility model; Figure 5 This is a schematic diagram of the working structure of this utility model.

[0016] In the diagram: 1. Operating table; 2. Servo motor; 3. Rotating shaft; 4. Limit block; 5. Powder collection tank; 6. Electric telescopic rod one; 7. Extrusion plate; 8. Ear plate; 9. Rotating handle; 10. Two-way threaded rod; 11. Moving block; 12. Limit rod; 13. One-way threaded rod; 14. Trimming knife; 15. Collection box; 16. Filter plate; 17. Electric telescopic rod two; 18. Cleaning rod; 19. Air pump; 20. Lunch box body. 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. 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.

[0018] Please see Figures 1-5 As shown, this utility model provides a technical solution: a lunchbox trimming device for easy powder cleaning, comprising: an operating table 1, a servo motor 2, a rotating shaft 3, a limiting block 4, a powder collection trough 5, an electric telescopic rod 1 6, a pressing disc 7, an ear plate 8, a rotating handle 9, a bidirectional threaded rod 10, a moving block 11, a limiting rod 12, a unidirectional threaded rod 13, a trimming knife 14, a collection box 15, a filter plate 16, an electric telescopic rod 2 17, a cleaning rod 18, an air pump 19, and a lunchbox body 20.

[0019] Manual trimming relies on manual operation, which not only makes it difficult to ensure consistent trimming quality for each lunchbox, but also easily leads to an increase in defective products due to differences in operation, and the overall production efficiency is extremely low. While mechanical trimming can improve efficiency to some extent, it requires customized blades for specific lunchbox structures, which is costly. Especially when dealing with lunchboxes with complex structures and varied edges, its adaptability is greatly reduced, making it difficult to flexibly meet diverse needs, and it is inconvenient to clean up the dust generated during trimming. Therefore, there is still room for further improvement.

[0020] like Figure 1 and Figure 5 As shown, when performing the lunchbox trimming operation, the lunchbox is first clamped. The lunchbox body 20 is placed above the worktable 1, so that the rear side of the lunchbox body 20 is tightly fitted with the limiting block 4. The limiting block 4 is fixedly connected to the rotating shaft 3, providing initial positioning for the lunchbox body 20. The electric telescopic rod 6 at the front of the upper side of the worktable 1 is activated. The output end of the electric telescopic rod 6 pushes the extrusion plate 7 towards the lunchbox body 20 until the extrusion plate 7 is tightly fitted with the front side of the lunchbox body 20, achieving a stable clamping of the lunchbox body 20 and preventing the lunchbox from shifting during the trimming process, which would affect the trimming accuracy.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, adjust the position of the trimming knife 14 according to the specifications of the lunchbox body 20. Rotate the rotating handle 9 on the right side of the bidirectional threaded rod 10. The bidirectional threaded rod 10 is rotatably connected to the ear plate 8. The ear plate 8 is symmetrical about the vertical central axis of the operating table 1. When the bidirectional threaded rod 10 rotates, the moving block 11, which is threaded to it, slides in opposite directions along the bidirectional threaded rod 10. At the same time, the moving block 11 is slidably connected to the limiting rod 12. The limiting rod 12 is fixedly connected to the ear plate 8 and is symmetrical about the vertical central axis of the ear plate 8. The limiting rod 12 guides and limits the moving block 11, preventing the moving block 11 from rotating with the bidirectional threaded rod 10. After the moving block 11 is adjusted to a suitable horizontal position, rotate the one-way threaded rod 13 on the limiting rod 12. The one-way threaded rod 13 is threaded to the trimming knife 14. The trimming knife 14 slides along the limiting rod 12. Adjust the longitudinal position of the trimming knife 14 so that the blade of the trimming knife 14 is aligned with the edge of the lunchbox body 20 to be trimmed.

[0022] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the servo motor 2 and the vacuum pump 19 are started. The servo motor 2 is powered on, and its output shaft drives the rotating shaft 3 to rotate. The rotating shaft 3 drives the limiting block 4 and the clamped lunch box body 20 to rotate synchronously. During the rotation of the lunch box body 20, the trimming knife 14 cuts and trims the burrs and flash on its edges. The plastic powder generated by trimming falls into the powder collection tank 5 opened on the upper side of the operating table 1 under the action of gravity. At the same time, the vacuum pump 19 is connected to the collection box 15 through a pipe, so that a negative pressure is formed inside the collection box 15, and the powder in the powder collection tank 5 is sucked into the collection box 15. The filter plate 16 set inside the collection box 15 filters the powder to prevent powder from entering the vacuum pump 19 and causing blockage. The filtered air is discharged through the vacuum pump 19.

[0023] like Figure 4 As shown, after the collection mechanism has been working for a period of time, a certain amount of powder will adhere to the surface of the filter plate 16, affecting air circulation and powder collection efficiency. The electric telescopic rod 17 fixed inside the collection box 15 is activated. The output end of the electric telescopic rod 17 drives the cleaning rod 18 to move. The cleaning rod 18 fits tightly against the side of the filter plate 16, scraping and cleaning the powder on the surface of the filter plate 16 during the movement. The cleaned powder falls into the bottom of the collection box 15.

[0024] After the lunchbox is trimmed, turn off the servo motor 2 and the vacuum pump 19, and control the electric telescopic rod 6 to shorten, causing the extrusion plate 7 to separate from the lunchbox body 20, and remove the trimmed lunchbox body 20. Periodically open the door of the collection box 15 to clean and recycle the powder collected at the bottom of the collection box 15, completing the entire lunchbox trimming and powder cleaning process.

[0025] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lunchbox trimming device for easy powder removal, comprising: The operating table (1) is provided with a servo motor (2) on its upper side, and the output shaft of the servo motor (2) is fixedly connected to the rotating shaft (3). The operating table (1) is also provided with an ear plate (8). Its characteristic is that it further includes: The upper side of the operating table (1) is provided with an adjustment mechanism for convenient trimming, and the ear plate (8) is symmetrical about the vertical central axis of the operating table (1). The lower side of the operating table (1) is provided with a powder collection mechanism, and the lower side of the operating table (1) is provided with a vacuum pump (19).

2. The lunchbox trimming device for easy powder removal according to claim 1, characterized in that: The adjustment mechanism is composed of a limiting block (4), an electric telescopic rod (6), an extrusion plate (7), a bidirectional threaded rod (10), and a moving block (11). The limiting block (4) is fixedly connected to the rotating shaft (3), and the electric telescopic rod (6) is fixedly connected to the upper front of the operating table (1) through a vertical plate. A powder collection trough (5) is provided on the upper side of the operating table (1).

3. The lunchbox trimming device for easy powder removal according to claim 2, characterized in that: The output end of the electric telescopic rod (6) is rotatably connected to the extrusion plate (7), and the extrusion plate (7) is tightly fitted to the lunch box body (20), and the rear side of the lunch box body (20) is tightly fitted to the limiting block (4).

4. The lunchbox trimming device for easy powder removal according to claim 2, characterized in that: The bidirectional threaded rod (10) is rotatably connected to the ear plate (8), and the right side of the bidirectional threaded rod (10) is fixedly connected to the rotating handle (9). The bidirectional threaded rod (10) is threadedly connected to the moving block (11), and the moving block (11) is symmetrical about the vertical center axis of the operating table (1).

5. The lunchbox trimming device for easy powder cleaning according to claim 4, characterized in that: The movable block (11) is slidably connected to the limiting rod (12), and the limiting rod (12) is fixedly connected to the ear plate (8), and the limiting rod (12) is symmetrical about the vertical central axis of the ear plate (8).

6. The lunchbox trimming device for easy powder cleaning according to claim 5, characterized in that: The limiting rod (12) is rotatably connected to the one-way threaded rod (13), and the one-way threaded rod (13) is threadedly connected to the trimming knife (14), and the trimming knife (14) is slidably connected to the limiting rod (12).

7. The lunchbox trimming device for easy powder removal according to claim 1, characterized in that: The collection mechanism is composed of a powder collection tank (5), a collection box (15), a filter plate (16), an electric telescopic rod (17), a cleaning rod (18), and an air pump (19). The collection box (15) is located on the lower side of the operating table (1), and the filter plate (16) is installed inside the collection box (15). The side of the filter plate (16) is in close contact with the cleaning rod (18).

8. A lunchbox trimming device for easy powder removal according to claim 7, characterized in that: The cleaning rod (18) is fixedly connected to the output end of the electric telescopic rod (17), and the electric telescopic rod (17) is fixedly connected to the inside of the collection box (15), and the collection box (15) is connected to the air pump (19) through a pipe.

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