A positioning and guiding mechanism for a plastic lunch box stacking and sorting machine

By introducing a positioning and guiding mechanism into the plastic lunch box stacking and sorting machine, and using components such as servo motors and electric push rods to achieve precise positioning and pressure fixation of the lunch boxes, the problem of uneven stacking of lunch boxes is solved, and the stacking density and space utilization are improved.

CN224278990UActive Publication Date: 2026-05-26QUZHOU XINLI IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QUZHOU XINLI IND & TRADE CO LTD
Filing Date
2025-08-01
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Plastic lunch boxes are lightweight and vary in size, resulting in uneven stacking and gaps, which affects space utilization efficiency.

Method used

A positioning and guiding mechanism including a stacking platform, a guide component, and a support component was designed. Using components such as a servo motor, an electric push rod, and a hydraulic cylinder, the mechanism can accurately position and pressurize plastic lunch boxes. By adjusting the angle of the guide plate and sliding the slider, the mechanism ensures that the lunch boxes are stacked without gaps.

Benefits of technology

This allows for tight stacking of plastic lunch boxes, reducing space usage and improving stack neatness and space utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a positioning and guiding mechanism for a plastic lunchbox stacking and sorting machine, relating to the field of plastic lunchbox stacking and sorting technology. It includes a stacking platform and a slider. Both sides of the outer surface of the stacking platform are equipped with guiding components two for guiding the plastic lunchboxes during stacking. The guiding components two include a mounting plate, a damping shaft two, and a guiding plate body two. The damping shaft two is located on one side of the mounting plate, and the guiding plate body two is mounted on the outer surface of the damping shaft two. This positioning and guiding mechanism for a plastic lunchbox stacking and sorting machine uses a sliding connection design between a pressure plate and an auxiliary pressure plate, which facilitates adjustment of the pressure application area according to the required size of the plastic lunchboxes. This allows for better pressure-based stacking and positioning of the plastic lunchboxes. The design of the guiding components one facilitates angle adjustment of the guiding plate body one and allows for adjustment of the concentrated feeding area according to the size of the plastic lunchboxes, which is beneficial for adapting the guidance to the size of the plastic lunchboxes.
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Description

Technical Field

[0001] This utility model relates to the field of plastic lunch box stacking and sorting technology, specifically to a positioning and guiding mechanism for a plastic lunch box stacking and sorting machine. Background Technology

[0002] Plastic lunch boxes are food-grade plastic containers made from plastic materials for convenient food transport. They are a common household plastic product and an indispensable container for picnics or hikes. Plastic lunch boxes are available in various styles and sizes. Square plastic lunch boxes can be used to store various condiments. Rectangular plastic lunch boxes are ideal for storing foods with moisture, such as fruits, vegetables, and seafood. After the plastic lunch boxes are formed, they need to be stacked and sorted in a sorting machine for easy collection.

[0003] For example, utility model application number 202122994197.3 relates to the technical field of lunch box production equipment, and discloses a collection and sorting device for plastic lunch box lid production equipment, including a machine body and a mounting frame. Both ends of the mounting frame are equipped with transmission rollers, and a transmission belt is arranged between the two transmission rollers. A drive motor is mounted on the mounting frame. Baffles are provided on the mounting frame and on both sides of the transmission belt. An opening groove is formed on the baffle on one side of the transmission belt. A material dropping plate is provided on the mounting frame and at the position of the opening groove, with the material dropping plate tilted downwards towards the side away from the opening groove. A first collection bin is placed on the ground at the lower end of the extension. A guide plate is installed on the mounting frame at the end of the conveyor belt away from the machine body to allow the successfully stamped plastic lunch box lids to fall. The guide plate extends downward at an angle away from the conveyor belt. A sorting table is set on the ground on the side of the guide plate away from the conveyor belt. A connecting column is set on the sorting table. Multiple rubber bands for binding a stack of plastic lunch box lids are fitted on the connecting column. However, the positioning and guiding mechanism for stacking plastic lunch boxes is not ideal because the lunch boxes are lightweight and of different sizes, which makes it easy for gaps to appear between them when stacking, resulting in an uneven stack. Summary of the Invention

[0004] The purpose of this invention is to provide a positioning and guiding mechanism for a plastic lunchbox stacking and sorting machine, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning and guiding mechanism for a plastic lunchbox stacking and sorting machine, comprising a stacking platform and a slider. Both sides of the outer surface of the stacking platform are equipped with guide components two for guiding the plastic lunchboxes during stacking. The guide components two include a mounting plate, a damping shaft two, and a guide plate body two. A damping shaft two is provided on one side of the mounting plate, and a guide plate body two is installed on the outer surface of the damping shaft two. The stacking platform is installed at the bottom of the damping shaft two, and a servo motor is provided on one side of the stacking platform. A connecting plate is installed at the output end of the servo motor via a shaft, and a built-in groove is provided inside the connecting plate. The slider is slidably disposed inside the built-in groove, and an auxiliary plate is installed on one side of the slider. A connecting column is installed on the outer surface of one side of the auxiliary plate, and a retainer is engaged at the end of the connecting column. A pressure plate is installed at the end of the retainer, and an auxiliary pressure plate is slidably installed inside the pressure plate.

[0006] Furthermore, an electric push rod is provided inside the built-in slot, and a slider is installed at the output end of the electric push rod.

[0007] Furthermore, a guide plate is provided on one side of the stacking platform, and guide components for guiding plastic lunch boxes are installed on both sides of the outer surface of the guide plate.

[0008] Furthermore, the guide assembly includes a damping shaft, a connecting sleeve, and a guide plate, with the connecting sleeve rotatably mounted on the outer surface of the damping shaft and the guide plate being disposed on the outer surface of the connecting sleeve.

[0009] Furthermore, a conveyor belt is provided on the side of the guide plate away from the stacking platform, and the guide plate has a rectangular structure.

[0010] Furthermore, the bottom of the stacking platform is provided with a support component for supporting the stacking platform, and the support component includes a support plate, a collection plate and a hydraulic cylinder. The bottom of the support plate is provided with a collection plate, and the bottom of the collection plate is equipped with a hydraulic cylinder.

[0011] Furthermore, the pressure plate has a hollow internal structure, and one side of the outer surface of the pressure plate is integrated with the card seat.

[0012] Furthermore, the second guide component is provided in two sets, and the two sets of the second guide component are symmetrically distributed about the vertical center line of the stacking platform.

[0013] This utility model provides a positioning and guiding mechanism for a plastic lunch box stacking and sorting machine, which has the following beneficial effects:

[0014] 1. This utility model allows the auxiliary plate indirectly connected to the connecting plate to be positioned above the two sets of guide plates by rotating the connecting plate. The electric push rod design enables the auxiliary plate to slide in the built-in groove using the slider design, thereby driving the pressure plate and auxiliary pressure plate to press down towards the plastic lunch box. This applies pressure to fix the loosely stacked plastic lunch boxes, preventing gaps between the plastic lunch boxes and providing a good positioning effect, while reducing the space occupied by the plastic lunch boxes.

[0015] This utility model features a sliding connection design between the pressure plate and the auxiliary pressure plate, which facilitates the adjustment of the pressure fixing area according to the needs of the plastic lunch box. This allows for a more secure and compact stacking positioning that fits the inner surface of the plastic lunch box. The design of the guide component facilitates the angle adjustment of the guide plate and allows for adjustment of the concentrated feeding area according to the size of the plastic lunch plate, which is beneficial for adapting and guiding the food according to the size of the plastic lunch plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the positioning and guiding mechanism of a plastic lunch box stacking and sorting machine according to the present invention;

[0017] Figure 2 This is a schematic diagram of the support component structure of the positioning and guiding mechanism of a plastic lunch box stacking and sorting machine according to the present invention;

[0018] Figure 3 This is a schematic diagram of the guiding component of the positioning and guiding mechanism of a plastic lunch box stacking and sorting machine according to the present invention.

[0019] Figure 4 This utility model relates to a positioning and guiding mechanism for a plastic lunchbox stacking and sorting machine. Figure 2 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Conveyor belt; 2. Guide plate; 3. Stacking platform; 4. Support assembly; 401. Support plate; 402. Assembly plate; 403. Hydraulic cylinder; 5. Servo motor; 6. Connecting plate; 7. Built-in groove; 8. Electric push rod; 9. Auxiliary plate; 10. Slider; 11. Connecting column; 12. Card seat; 13. Pressure plate; 14. Auxiliary pressure plate; 15. Guide assembly one; 1501. Damping shaft one; 1502. Connecting sleeve one; 1503. Guide plate body one; 16. Guide assembly two; 1601. Mounting plate; 1602. Damping shaft two; 1603. Guide plate body two. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figure 1 , Figure 2 and Figure 4As shown, a positioning and guiding mechanism for a plastic lunchbox stacking and sorting machine includes a conveyor belt 1, a guide plate 2, a stacking platform 3, a support assembly 4, a support plate 401, a collection plate 402, a hydraulic cylinder 403, a servo motor 5, a connecting plate 6, an internal groove 7, an electric push rod 8, an auxiliary plate 9, a slider 10, a connecting column 11, a card seat 12, a pressure plate 13, an auxiliary pressure plate 14, a first guide assembly 15, a first damping shaft 1501, a first connecting sleeve 1502, a first guide plate body 1503, a second guide assembly 16, a mounting plate 1601, a second damping shaft 1602, and a second guide plate body 1603. The second guide assembly 16 is installed on both sides of the outer surface of the stacking platform 3 to guide the plastic lunchboxes during stacking, and the second guide assembly 16 includes a mounting plate. 1601, damping shaft 1602, and guide plate 1603. Two sets of guide components 16 are provided, symmetrically distributed about the vertical centerline of the stacking platform 3. A support component 4 is provided at the bottom of the stacking platform 3, including a support plate 401, a collection plate 402, and a hydraulic cylinder 403. The collection plate 402 is located at the bottom of the support plate 401, and the hydraulic cylinder 403 is installed at the bottom of the collection plate 402. The hydraulic cylinder 403 allows the support plate 401, collection plate 402, and stacking platform 3 to move up or down, facilitating adaptive adjustments based on stacking conditions and easy integration with the conveyor belt 1, reducing usage limitations. Due to limitations, a damping shaft 1602 is provided on one side of the mounting plate 1601, and a guide plate 1603 is installed on the outer surface of the damping shaft 1602. A stacking platform 3 is installed at the bottom of the damping shaft 1602, and a servo motor 5 is provided on one side of the stacking platform 3. A connecting plate 6 is installed at the output end of the servo motor 5 via a shaft. An internal groove 7 is provided inside the connecting plate 6, and an electric push rod 8 is provided inside the internal groove 7. A slider 10 is installed at the output end of the electric push rod 8. The slider 10 is slidably disposed inside the internal groove 7. An auxiliary plate 9 is installed on one side of the slider 10, and a connecting post 11 is installed on the outer surface of one side of the auxiliary plate 9. A retainer 12 is engaged at the end of the connecting post 11, and a pressure plate 1 is installed at the end of the retainer 12. 3. An auxiliary pressure plate 14 is slidably installed inside the pressure plate 13. The pressure plate 13 has a hollow internal structure, and one side of its outer surface is integrated with the card holder 12. The guide plates 1603 are arranged in a trumpet shape to guide the conveyed plastic lunch box, positioning it between the two sets of guide plates 1603. The servo motor 5 and the rotating shaft drive the connecting plate 6 to rotate. This rotation positions the auxiliary plate 9, which is indirectly connected to it, above the two sets of guide plates 1603. The electric push rod 8 drives the auxiliary plate 9 to slide in the built-in groove 7 using the slider 10, thereby pressing the pressure plate 13 and the auxiliary pressure plate 14 downwards towards the plastic lunch box.This design allows for pressure application to secure loosely stacked plastic lunch boxes, preventing gaps between them and providing excellent positioning. It also reduces the space occupied by the boxes. Furthermore, the sliding connection between the pressure plate 13 and the auxiliary pressure plate 14 allows for adjustment of the pressure application area according to the needs of the plastic lunch boxes, facilitating a more precise and close fit to the inner surface of the boxes for effective stacking and positioning.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, a guide plate 2 is provided on one side of the stacking platform 3, and guide components 15 for guiding plastic lunch boxes are installed on both sides of the outer surface of the guide plate 2. A conveyor belt 1 is provided on the outer side of the guide plate 2 away from the stacking platform 3, and the guide plate 2 has a rectangular structure. The guide component 15 includes a damping shaft 1501, a connecting sleeve 1502, and a guide plate body 1503. The connecting sleeve 1502 is rotatably mounted on the outer surface of the damping shaft 1501, and the guide plate body 1503 is provided on the outer surface of the connecting sleeve 1502. 3. The plastic lunch boxes transferred down from conveyor belt 1 will pass between two sets of guide components 15. The design of the two sets of guide plates 1503 can correct the position of the plastic lunch boxes, so that they can all be kept in the same position and continue to be transferred downwards. This is beneficial for the subsequent stacking of plastic plates. At the same time, the design of the damping shaft 1501 and the connecting sleeve 1502 makes it easy to adjust the angle of the guide plate 1503. This allows for the adjustment of the concentrated feeding area according to the size of the plastic plates, which is beneficial for adapting the guidance according to the size of the plastic plates.

[0024] In summary, the positioning and guiding mechanism of this plastic lunchbox stacking and sorting machine firstly... Figures 1-4The structure shown, in use, utilizes the hydraulic cylinder 403 to move the support plate 401, the collecting plate 402, and the stacking platform 3 up or down. This allows for adaptive adjustments based on stacking conditions and facilitates coordination with the conveyor belt 1. The plastic lunch boxes conveyed by the conveyor belt 1 then pass between two sets of guide components 1503. The design of the two guide plates 1503 corrects the position of the plastic lunch boxes, ensuring they remain in the same position for continued downward conveying. This facilitates the subsequent stacking of plastic trays. Simultaneously, the rotatable connection between the damping shaft 1501 and the connecting sleeve 1502 allows for angle adjustment of the guide plates 1503, enabling adjustment of the concentrated feeding area according to the size of the plastic trays. The guide plates 1603 are arranged in a trumpet shape, thus controlling the conveyed plastic lunch boxes. The system guides the plastic lunch boxes so that they are positioned between the two sets of guide plates 1603. The servo motor 5 and the rotating shaft drive the connecting plate 6 to rotate. This rotation positions the auxiliary plate 9, which is indirectly connected to it, above the two sets of guide plates 1603. The electric push rod 8 drives the auxiliary plate 9 to slide in the built-in groove 7 using the slider 10. This causes the pressure plate 13 and the auxiliary pressure plate 14 to press down towards the plastic lunch boxes, thus applying pressure to fix the loosely stacked plastic lunch boxes. This prevents gaps between the plastic lunch boxes and provides good positioning. It also reduces the space occupied by the plastic lunch boxes. In addition, the sliding connection between the pressure plate 13 and the auxiliary pressure plate 14 allows for adjustment of the pressure fixing area according to the needs of the plastic lunch boxes, thereby positioning and guiding the plastic lunch boxes to achieve stacking.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A positioning guide mechanism of a plastic meal box stacking and arranging machine, comprising a stacking platform (3) and a sliding block (10), characterized in that, The stacking platform (3) has guide components two (16) installed on both sides of its outer surface for guiding plastic lunch boxes during stacking. The guide components two (16) include a mounting plate (1601), a damping pivot two (1602), and a guide plate body two (1603). The mounting plate (1601) has a damping pivot two (1602) on one side, and the damping pivot two (1602) has a guide plate body two (1603) installed on its outer surface. The stacking platform (3) is installed at the bottom of the damping pivot two (1602), and the stacking platform (3) has a guide plate body two (1603) installed on one side. There is a servo motor (5), and the output end of the servo motor (5) is mounted with a connecting plate (6) through a rotating shaft. The connecting plate (6) has an internal groove (7). The slider (10) is slidably disposed inside the internal groove (7). An auxiliary plate (9) is mounted on one side of the slider (10). A connecting post (11) is mounted on the outer surface of one side of the auxiliary plate (9). A card seat (12) is engaged at the end of the connecting post (11). A pressure plate (13) is mounted at the end of the card seat (12). An auxiliary pressure plate (14) is slidably mounted inside the pressure plate (13).

2. The positioning guide mechanism of the plastic meal box stacking and arranging machine according to claim 1, wherein An electric push rod (8) is provided inside the built-in slot (7), and a slider (10) is installed at the output end of the electric push rod (8).

3. The positioning guide mechanism of the plastic meal box stacking and arranging machine according to claim 1, wherein The stacking platform (3) is provided with a guide plate (2) on one side, and guide components (15) for guiding plastic lunch boxes are installed on both sides of the outer surface of the guide plate (2).

4. The positioning guide mechanism of the plastic meal box stacking and arranging machine according to claim 3, characterized in that, The guide assembly (15) includes a damping shaft (1501), a connecting sleeve (1502), and a guide plate (1503). The connecting sleeve (1502) is rotatably mounted on the outer surface of the damping shaft (1501), and the guide plate (1503) is provided on the outer surface of the connecting sleeve (1502).

5. The positioning guide mechanism of the plastic meal box stacking and arranging machine according to claim 3, wherein The guide plate (2) is provided with a conveyor belt (1) on the side away from the stacking platform (3), and the guide plate (2) has a rectangular structure.

6. The positioning guide mechanism of the plastic meal box stacking and arranging machine according to claim 1, wherein The bottom of the stacking platform (3) is provided with a support component (4) for supporting the stacking platform (3), and the support component (4) includes a support plate (401), a collection plate (402) and a hydraulic cylinder (403). The bottom of the support plate (401) is provided with a collection plate (402), and the bottom of the collection plate (402) is equipped with a hydraulic cylinder (403).

7. The positioning and guiding mechanism of a plastic lunch box stacking and sorting machine according to claim 1, characterized in that, The pressure plate (13) has a hollow structure inside, and one side of the outer surface of the pressure plate (13) is an integrated structure with the card seat (12).

8. The positioning and guiding mechanism of a plastic lunch box stacking and sorting machine according to claim 1, characterized in that, The guide component 2 (16) is provided in two sets, and the two sets of guide component 2 (16) are symmetrically distributed about the vertical center line of the stacking platform (3).

Citation Information

Patent Citations

  • Collecting and arranging device for plastic meal box cover production equipment

    CN216375202U