Stacking mechanism for food packaging bag production

By introducing a stepper motor-driven moving table and a self-locking electric push cylinder clamping device into the production of food packaging bags, the problems of uneven stacking and easy loosening of packaging bags have been solved, achieving efficient and stable stacking of packaging bags and improving production efficiency and automation level.

CN224076758UActive Publication Date: 2026-04-03CHIBI RUNJIA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-20
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing food packaging bag stacking mechanisms lack precise and stable clamping and fixing devices, resulting in uneven stacking, easy loosening, and potential damage to the surface of the packaging bags, affecting production efficiency and automation processes.

Method used

A stepper motor-driven moving stage, combined with electromagnets and laser sensors, along with a self-locking electric push cylinder and clamping rod, guides the packaging bags in via a lead screw and an arc plate, and uses springs and clamping plates to achieve stable clamping, ensuring the neatness and stability of the stacked packaging bags.

Benefits of technology

It improves the automation and efficiency of packaging bag stacking, ensures the neatness and stability of packaging bag stacking, avoids damage to the surface of packaging bags, and improves production efficiency and quality consistency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224076758U_ABST
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Abstract

The utility model discloses a stacking mechanism for food packaging bag production, and relates to the technical field of food packaging bag stacking appliances, the stacking mechanism comprises a support frame, one side in the support frame is in sliding connection with a U-shaped moving table, the other side in the support frame is provided with a guide pipe, the guide pipe is L-shaped, the moving table is internally provided with a stacking assembly, and the moving table is provided with an L-shaped opening. According to the packaging bag stacking device, through cooperation of a second electric push cylinder, a clamping rod, a spring and a clamping plate, the effect of clamping packaging bags on a stacking plate is achieved, the problem that the packaging bags are prone to loosening when stacked is solved, and the uniformity and stability of stacking of the packaging bags are improved; through cooperation of the L-shaped plates, the arc-shaped plates and the check blocks, the effects of guiding the packaging bags to enter and preventing the packaging bags from inclining are achieved, the problem that the packaging bags are prone to position deviation when entering the stacking mechanism is solved, and the orderliness of stacking work is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of food packaging bag stacking tools, and in particular to a stacking mechanism for food packaging bag production. Background Technology

[0002] In the production process of food packaging bags, the stacking mechanism is a key piece of equipment for achieving efficient sorting and collection of packaging bags;

[0003] Existing stacking mechanisms typically use mechanical moving parts to transfer and stack packaging bags. However, in actual operation, there are some technical problems that urgently need to be solved. For example, after the packaging bags are transferred, traditional stacking mechanisms lack precise and stable clamping and fixing devices, which makes it easy for the stacked packaging bags to become loose, skewed, or even slip off. Since most existing equipment relies on simple baffles or gravity for stacking, it cannot dynamically adjust the clamping force according to the size and quantity of the packaging bags. Moreover, the rigid contact during clamping can easily cause damage to the surface of the packaging bags, which seriously affects the neatness of the stacking and production efficiency. In addition, manual intervention to adjust the clamping state not only increases operating costs but also makes it difficult to ensure the consistency of stacking quality, thus restricting the automation process of food packaging bag production. Therefore, the above problems need to be improved. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a stacking mechanism for food packaging bag production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a stacking mechanism for food packaging bag production, including a support frame, a U-shaped movable platform slidably connected to one side of the support frame, and a guide tube installed on the other side of the support frame, the guide tube being L-shaped, and a stacking assembly installed inside the movable platform.

[0006] Preferably, the stacking assembly includes U-shaped slots formed at both ends inside the mobile stage. Multiple mounting slots and mounting holes are formed in the two U-shaped slots. Electromagnets are installed in the mounting slots, and laser sensors are installed in the mounting holes. Two baffles are installed on the inner side of the mobile stage, and the two baffles are mounted on one end of the U-shaped slots by a first torsion spring.

[0007] Preferably, an arc-shaped plate is installed at the lower end of the guide tube, the arc-shaped plate is installed on the inner bottom surface of the support frame, and multiple stops are hinged to one side of the guide tube.

[0008] Preferably, a stepper motor is installed on one side of the bottom surface of the support frame, the drive end of the stepper motor is connected to a lead screw through a coupling, the lead screw is threadedly connected to a moving table, and the lead screw is installed on the other side of the bottom surface of the support frame through a bearing.

[0009] Preferably, the support frame has lifting slots at both ends of the top surface, and lifting blocks are installed in both lifting slots. A self-locking first electric push cylinder is installed at the upper end of the lifting slot, and the driving end of the first electric push cylinder is fixedly connected to the lifting block.

[0010] Preferably, a stacking plate is installed on one side of the inside of the support frame, and clamping grooves are opened at four ends on one side of the inside of the support frame; cavities are opened at four ends on one side of the support frame, and self-locking second electric push cylinders are installed in the cavities. The driving ends of the second electric push cylinders abut against clamping rods. The clamping rods are T-shaped and are sleeved with springs; the other end of the clamping rods passes through the cavities and is placed in the clamping grooves, the other end of the springs abuts against the inner wall of the cavities, and a connecting block is installed on the other end of the clamping rods. A clamping plate is provided on the other end of the connecting block. The clamping plate is movably hinged to the connecting block through a second torsion spring, and a groove for cooperating with the clamping plate is opened on the top surface of the connecting block.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation between the stepper motor and the lead screw, drives the moving platform, solving the problem of low efficiency in manual movement of the moving platform and improving the automation level and working efficiency of the stacking mechanism; through the cooperation between the second electric push cylinder, clamping rod, spring, and clamping plate, it clamps the packaging bags on the stacking plate, solving the problem of packaging bags easily becoming loose during stacking and improving the neatness and stability of the stacked packaging bags; through the cooperation between the L-shaped plate, arc-shaped plate, and stop block, it guides the packaging bags into the stack and prevents them from tilting, solving the problem of easy positional deviation when the packaging bags enter the stacking mechanism and improving the orderliness of the stacking work. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0014] Figure 2 This is a cross-sectional view of the overall structure proposed in this utility model;

[0015] Figure 3 This is a half-sectional schematic diagram of the overall structure proposed in this utility model;

[0016] Figure 4 The present utility model proposes Figure 3 Enlarged schematic diagram of part A of the structure;

[0017] Figure 5This is a schematic diagram of the second electric push cylinder and clamping rod proposed in this utility model;

[0018] Figure 6 This is a schematic diagram of the mobile platform structure proposed in this utility model.

[0019] The following are the components listed in the diagram: 1. Support frame; 2. Guide tube; 3. Arc plate; 4. Stop block; 5. First electric push cylinder; 6. Lifting block; 7. Moving platform; 8. Baffle; 9. Electromagnet; 10. Laser sensor; 11. Stepper motor; 12. Lead screw; 13. Second electric push cylinder; 14. Clamping rod; 15. Clamping plate; 16. Spring; 17. Stacking plate. Detailed Implementation

[0020] 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.

[0021] Example: See Figure 1-6 This utility model discloses a stacking mechanism for food packaging bag production, comprising a support frame 1. A U-shaped movable platform 7 is slidably connected to one side of the support frame 1, facilitating the collection of packaging bags. The support frame 1 also facilitates the installation of stacking equipment. A guide tube 2 is installed on the other side of the support frame 1, allowing packaging bags to enter. The guide tube 2 is L-shaped. A stacking assembly is installed inside the movable platform 7, comprising U-shaped grooves at both ends of the movable platform 7. Multiple mounting slots and mounting holes are formed within the two U-shaped grooves. Electromagnets 9 are installed in the mounting slots, facilitating the attraction of baffles. 8; A laser sensor 10 is installed in the mounting hole to detect the position of the baffle 8 and calculate the number of times the baffle 8 closes. The laser sensor 10 is model E3FA; Two baffles 8 are installed inside the moving stage 7 to facilitate pushing the packaging bag; The two baffles 8 are installed at one end of the U-shaped groove by the first torsion spring. An arc plate 3 is installed at the lower end of the guide tube 2 to facilitate collecting the packaging bag entering the guide tube 2; The arc plate 3 is installed on the inner bottom surface of the support frame 1, and multiple stops 4 are hinged to one side of the guide tube 2 to facilitate limiting the packaging bag falling into the arc plate 3.

[0022] In this utility model, a stepper motor 11 is installed on one side of the bottom surface of the support frame 1, which provides driving force to the lead screw 12. The drive end of the stepper motor 11 is connected to the lead screw 12 via a coupling, which facilitates the movement of the moving platform 7. The lead screw 12 is threadedly connected to the moving platform 7, and the lead screw 12 is mounted on the other side of the bottom surface of the support frame 1 via bearings. Lifting slots are opened at both ends of the middle of the top surface of the support frame 1, and lifting blocks 6 are installed in both lifting slots. A self-locking first electric push cylinder 5 is installed at the upper end of the lifting slot, which facilitates the movement of the lifting blocks 6. The drive end of the first electric push cylinder 5 is fixedly connected to the lifting block 6, which facilitates the blocking of the baffle 8 and makes the baffle 8 rotate along the inner side of the moving platform 7. A stacking plate 17 is installed on one side of the inside of the support frame 1, which facilitates the collection of packaging bags. The support frame 1 has clamping grooves at four ends on one side; cavities are provided at four ends on one side of the support frame 1, and a self-locking second electric push cylinder 13 is installed in the cavity. The second electric push cylinder 13 provides driving force for the clamping rod 14. The driving end of the second electric push cylinder 13 abuts against the clamping rod 14, and the clamping rod 14 facilitates the installation of the movable clamping plate 15. The clamping rod 14 is T-shaped and is sleeved with a spring 16. The other end of the clamping rod 14 passes through the cavity and is placed in the clamping groove. The other end of the spring 16 abuts against the inner wall of the cavity, and the spring 16 provides self-driving force for the clamping rod 14. A connecting block is installed at the other end of the clamping rod 14, and a clamping plate 15 is provided at the other end of the connecting block. The clamping plate 15 facilitates clamping the packaging bag sent to the stacking plate 17. The clamping plate 15 is movably hinged to the connecting block through a second torsion spring, and a groove for matching the clamping plate 15 is provided on the top surface of the connecting block.

[0023] Working Principle: When using this invention, the equipment is powered on, and the packaging bag enters the arc plate 3 from the guide tube 2. The stop block 4 prevents the packaging bag from tilting. Simultaneously, the stepper motor 11 is started, which drives the lead screw 12 to rotate. The lead screw 12 drives the moving platform 7 to move. When the moving platform 7 passes the lifting block 6, the baffle 8 is blocked by the lifting block 6, causing the baffle 8 to move inward towards the moving platform 7. When the laser sensor 10 detects the approach of the baffle 8, the electromagnet 9 is activated, attracting the baffle 8. When the moving platform 7 reaches the rear end of the arc plate 3, the electromagnet 9... When magnet 9 is closed, baffle 8 unfolds under the self-driving force of the first torsion spring, then reverse stepper motor 11, and moving platform 7 moves back. Since stop 4 is hinged, moving platform 7 can move back normally. The second electric push cylinder 13 activates the push clamping rod 14. Since clamping rod 14 and clamping plate 15 are installed through the second torsion spring, when moving platform 7 carrying packaging bag passes clamping plate 15 and reaches stacking plate 17, the second electric push cylinder 13 resets, and clamping rod 14 is clamped by the self-driving force of spring 16 to the packaging bag placed on stacking plate 17. The above process is repeated.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stacking mechanism for producing food packaging bags, comprising a support frame (1), characterized in that: The support frame (1) has a U-shaped moving platform (7) slidably connected to one side inside, and a guide tube (2) is installed on the other side inside the support frame (1). The guide tube (2) is L-shaped, and a stacking assembly is installed inside the moving platform (7).

2. The stacking mechanism for food packaging bag production according to claim 1, characterized in that: The stacking assembly includes U-shaped slots at both ends inside the moving platform (7). Multiple mounting slots and mounting holes are opened in the two U-shaped slots. An electromagnet (9) is installed in the mounting slot and a laser sensor (10) is installed in the mounting hole. Two baffles (8) are installed on the inside of the moving platform (7). The two baffles (8) are installed at one end of the U-shaped slot by a first torsion spring.

3. The stacking mechanism for food packaging bag production according to claim 1, characterized in that: An arc plate (3) is installed at the lower end of the guide tube (2). The arc plate (3) is installed on the inner bottom surface of the support frame (1), and multiple stops (4) are hinged to one side of the guide tube (2).

4. The stacking mechanism for producing food packaging bags according to claim 1, characterized in that: A stepper motor (11) is installed on one side of the bottom surface of the support frame (1). The drive end of the stepper motor (11) is connected to a lead screw (12) through a coupling. The lead screw (12) is threadedly connected to a moving table (7), and the lead screw (12) is installed on the other side of the bottom surface of the support frame (1) through a bearing.

5. The stacking mechanism for food packaging bag production according to claim 1, characterized in that: The support frame (1) has lifting slots at both ends of the top surface. Lifting blocks (6) are installed in both lifting slots. A self-locking first electric push cylinder (5) is installed at the upper end of the lifting slot. The driving end of the first electric push cylinder (5) is fixedly connected to the lifting block (6).

6. The stacking mechanism for producing food packaging bags according to claim 1, characterized in that: The support frame (1) has a stacking plate (17) installed on one side inside, and the support frame (1) has clamping grooves at four ends on one side inside; the support frame (1) has cavities at four ends on one side, and a self-locking second electric push cylinder (13) is installed in the cavity. The driving end of the second electric push cylinder (13) abuts against a clamping rod (14). The clamping rod (14) is T-shaped, and a spring (16) is sleeved on the clamping rod (14). The other end of the clamping rod (14) passes through the cavity and is placed in the clamping groove. The other end of the spring (16) abuts against the inner wall of the cavity. A connecting block is installed on the other end of the clamping rod (14). A clamping plate (15) is provided on the other end of the connecting block. The clamping plate (15) is movably hinged to the connecting block through a second torsion spring. A groove for matching the clamping plate (15) is opened on the top surface of the connecting block.