Food packaging system

By using an automated food packaging system, mechanical structures are used to automatically crease and label paper bags, solving the problems of low efficiency and low precision caused by relying on manual crease and labeling, and improving the visibility of paper bag creases and the accuracy of labeling.

CN224266204UActive Publication Date: 2026-05-22FUZHOU UNIV ZHICHENG COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUZHOU UNIV ZHICHENG COLLEGE
Filing Date
2025-04-18
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

In current food packaging processes, the creases and stickers on paper bags still rely on manual labor, resulting in low efficiency, low precision, and a high risk of errors.

Method used

An automated food packaging system is adopted, including a material limiting mechanism, a material height adjustment mechanism, an extrusion module, and a sticker module. Through a stepper motor, cylinder, and motor-driven mechanical structure, the automatic folding and sticker application process of paper bags is realized.

Benefits of technology

It improves the visibility and stability of paper bag creases, reduces errors caused by paper bag movement, and improves labeling accuracy and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a food packaging system which comprises a bag sealing mechanism, a base of the bag sealing mechanism comprises a material limiting mechanism and a material height adjusting mechanism, the food packaging system further comprises an extrusion module, and the material height adjusting mechanism comprises a first stepping motor (6), a supporting roller (5) and a supporting frame (4) connected with the base through a belt (9). The extrusion module is adjacent to the paper pasting module; the material height adjusting mechanism drives the supporting frame (4) to move through the stepping motor (6) and the supporting roller (5), so that the packaging bag moves to the needed position in the vertical direction. The material limiting mechanism comprises a baffle (7) which is driven by a first stepping motor to horizontally move on a sliding rod (8). After a packaging paper bag is fixed to a needed position through a baffle, the extrusion module extrudes the paper bag through an extrusion block and a pressing piece in sequence, so that a crease capable of being recognized by external infrared induction equipment (23) and a visual camera (24) is formed at the paper bag; the paper bag folding, edge pressing and paper pasting device can achieve automatic operation of paper bag folding, edge pressing and paper pasting processes.
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Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, and in particular to food packaging systems. Background Technology

[0002] In modern manufacturing, automated machining technology has become a key means to improve production efficiency, ensure product quality, and reduce production costs.

[0003] In recent years, with the continuous advancement of science and technology, automation technology has developed rapidly and has received high attention from many enterprises. This technology has a profound impact, and its importance cannot be ignored. The implementation of automation technology can liberate people from heavy physical labor, mental labor requiring high concentration, and even harsh or dangerous working environments.

[0004] The application of automated equipment not only allows companies to better control their budgets and achieve effective cost management, but also significantly improves work efficiency. Through precise and efficient mechanical operation, automated equipment has brought revolutionary changes to a company's production processes. They can work continuously without rest and maintain consistent output quality, which was unimaginable in the past when production relied on manual labor.

[0005] Furthermore, automation technology helps businesses reduce losses caused by human error, ensuring production quality and safety. The high reliability and stability of automated equipment make the production process more predictable, reduce unexpected downtime, and provide strong support for the continuous operation of enterprises.

[0006] Automation technology has become a key tool for modern enterprises to enhance their competitiveness. It not only improves working conditions and increases production efficiency, but also brings economic benefits and operational convenience to enterprises, serving as a significant driving force for industrial and social progress. With continuous technological advancements and further expansion of its application scope, automation will continue to play an increasingly important role in future enterprise development. Utility Model Content

[0007] This invention proposes a food packaging system that automates the processes of folding, pressing, and labeling paper bags.

[0008] The present invention adopts the following technical solution.

[0009] The food packaging system includes a sealing mechanism located at the food packaging production line. The base (1) of the sealing mechanism includes a material limiting mechanism (2) for moving the packaging paper bag to the desired position and a material height adjustment mechanism (3). It also includes an extrusion module for forming an indentation on the paper bag. The material height adjustment mechanism includes a first stepper motor (6), a support roller (5), and a support frame (4) connected to the base via a belt (9). The extrusion module is adjacent to the sticker module.

[0010] The material height adjustment mechanism drives the support frame (4) to move via a stepper motor (6) and a support roller (5), so that the packaging bag is moved vertically to the required position; the material limiting mechanism includes a baffle (7) that moves horizontally on a sliding rod (8) driven by a stepper motor.

[0011] After the baffle fixes the packaging paper bag in the required position, the extrusion module extrudes the paper bag through the extrusion block and the pressure plate in turn, so that the paper bag forms a crease that can be recognized by the external infrared sensing device (23) and visual camera (24).

[0012] The extrusion module includes an extrusion block mechanism for driving the extrusion block (10) and a tablet pressing mechanism for driving the tablet (14).

[0013] The extrusion block mechanism includes a second stepper motor (12), a bracket (13), an extrusion block (10), a pressure block (25), and an extrusion gear (26). One end of the extrusion block (10) is connected to a first cylinder (11), and the other end of the first cylinder (11) is rotatably connected to one side of the bracket (13) of the extrusion block (10) through the second stepper motor (12).

[0014] The first cylinder (11) drives the pressing block (25) to move obliquely downward via the pressing gear (26), and applies force to the paper bag fixed by the material limiting mechanism.

[0015] The tableting mechanism includes a tablet press (14), a screw-slider mechanism (15), and a screw lifting platform (16).

[0016] The number of the pressure plates (14) is two. The outer surface of one end of the two screw sliders (15) is connected to the pressure plate (14) and the screw lifting platform (16) respectively. The outer surface of the other end of the two screw lifting platforms (16) is connected to the middle outer wall of the two pressure plates (14) respectively.

[0017] Once the packaging paper bag is fixed in the desired position, the extrusion block of the extrusion block mechanism first applies pressure to the supported central area of ​​the paper bag to leave a crease along the center line of the paper bag. Then, the pressing plate of the pressing plate mechanism moves to the crease and applies pressure to the paper bag again to deepen the crease and form a pressed edge.

[0018] The pressing sheet also includes a first roller (17) driven by a second stepper motor (12). When the pressing sheet applies pressure to the paper bag again, the second stepper motor drives the first roller to move at the crease to further deepen the crease.

[0019] The sticker module includes a speed-regulating gear reducer motor (18), a sticker slide rail (20), a suction cup bracket (21), a suction cup (22), and a sticker strip (15) for holding the sticker. It is fixedly connected to one side of the outer surface of one end of the suction cup moving bracket (19) by a fixing rod. The outer surface of the middle part of the speed-regulating gear reducer motor (18) is relatively stationary with the outer surface of one side of the sticker strip.

[0020] One side of the outer surface of one end of the sticker slide rail (20) is fixedly connected to one side of the suction cup bracket (21), and the middle part of the suction cup bracket (21) is rolledly connected to one end of the outer surface of the suction cup (22).

[0021] After the first roller moves along the crease to further deepen the crease, the suction cup moves the bracket to drive the sticker tape to contact the paper bag, placing the sticker on the designated position on the paper bag. Then, the suction cup on the sticker slide rail drives the sticker to rotate around the crease, so that the paper bag is sealed with the crease as the boundary.

[0022] In summary, this application includes the following beneficial technical effects:

[0023] 1. This utility model can make the indentation of the paper bag more obvious and prevent the paper bag opening from curling up.

[0024] 2. This invention ensures the stability of the paper bag during labeling by installing a support structure below the indentation. This structure not only improves labeling accuracy but also reduces errors that may be caused by the paper bag moving. Attached Figure Description

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0026] Appendix Figure 1 This is a schematic diagram of the overall three-dimensional structure in the embodiments of this application;

[0027] Appendix Figure 2 This is a frontal structural diagram of an embodiment of this application;

[0028] Appendix Figure 3 This is a schematic diagram of the structure on the left side in an embodiment of this application;

[0029] Appendix Figure 4 This is a top cross-sectional view of the structure in an embodiment of this application;

[0030] Appendix Figure 5 This is a three-dimensional cross-sectional structural schematic diagram of an embodiment of this application;

[0031] Appendix Figure 6 This is a schematic diagram of the structure of a partial view in an embodiment of this application;

[0032] In the diagram: 1. Base; 2. Material limiting mechanism; 3. Material height adjustment mechanism; 4. Support frame; 5. Support roller; 6. First stepper motor; 7. Baffle; 8. Sliding rod; 9. Belt; 10. Extrusion block; 11. First cylinder; 12. Second stepper motor; 13. Bracket; 14. Pressing plate; 15. Screw-slider mechanism; 16. Screw lifting platform; 17. First roller; 18. Speed-regulating gear reducer motor; 19. Suction cup moving bracket; 20. Sticker slide rail; 21. Suction cup bracket; 22. Suction cup; 23. Infrared sensing device; 24. Vision camera; 25. Pressing block; 26. Extrusion gear. Detailed Implementation

[0033] As shown in the figure, the food packaging system includes a sealing mechanism located at the food packaging production line. The base 1 of the sealing mechanism includes a material limiting mechanism 2 and a material height adjustment mechanism 3 for moving the packaging paper bag to the required position. It also includes an extrusion module for forming an indentation on the paper bag. The material height adjustment mechanism includes a first stepper motor 6, a support roller 5, and a support frame 4 connected to the base via a belt 9. The extrusion module is adjacent to the sticker module.

[0034] The material height adjustment mechanism drives the support frame 4 to move via the stepper motor 6 and the support roller 5, so that the packaging bag is adjusted to the required position in the vertical direction; the material limiting mechanism includes a baffle 7 that moves horizontally on the sliding rod 8 driven by the first stepper motor.

[0035] After the baffle fixes the packaging paper bag in the required position, the extrusion module extrudes the paper bag through the extrusion block and the pressure plate in sequence.

[0036] The extrusion module includes an extrusion block mechanism for driving the extrusion block 10 and a tableting mechanism for driving the tablet 14.

[0037] The extrusion block mechanism includes a second stepper motor 12, a bracket 13, an extrusion block 10, a pressing block 25, and an extrusion gear 26. One end of the extrusion block 10 is connected to a first cylinder 11, and the other end of the first cylinder 11 is rotatably connected to one side of the bracket 13 of the extrusion block 10 through the second stepper motor 12.

[0038] The first cylinder 11 drives the pressing block 25 to move obliquely downward via the pressing gear 26, and applies force to the paper bag fixed by the material limiting mechanism.

[0039] The tableting mechanism includes a tablet press 14, a screw-slider mechanism 15, and a screw lifting platform 16.

[0040] There are two pressure plates 14. The outer surface of one end of the two lead screw sliders 15 is connected to the pressure plate 14 and the lead screw lifting platform 16 respectively. The outer surface of the other end of the two lead screw lifting platforms 16 is connected to the middle outer wall of the two pressure plates 14 respectively.

[0041] Once the packaging paper bag is fixed in the desired position, the extrusion block of the extrusion block mechanism first applies pressure to the supported central area of ​​the paper bag to leave a crease along the center line of the paper bag. Then, the pressing plate of the pressing plate mechanism moves to the crease and applies pressure to the paper bag again to deepen the crease and form a pressed edge.

[0042] The pressing sheet also includes a first roller 17 driven by a second stepper motor 12. When the pressing sheet applies pressure to the paper bag again, the second stepper motor drives the first roller to move at the crease to further deepen the crease.

[0043] The sticker module includes a speed-regulating gear reducer motor (18), a sticker slide rail 20, a suction cup bracket 21, a suction cup 22, and a sticker strip 15 for holding the sticker. It is fixedly connected to one side of the outer surface of one end of the suction cup moving bracket 19 by a fixing rod. The outer surface of the middle part of the speed-regulating gear reducer motor (18) is relatively stationary with the outer surface of one side of the sticker strip.

[0044] One side of the outer surface of one end of the sticker slide rail 20 is fixedly connected to one side of the suction cup bracket 21, and the middle part of the suction cup bracket 21 is rotatably connected to the outer surface of one end of the suction cup 22.

[0045] After the first roller moves along the crease to further deepen the crease, the suction cup moves the bracket to drive the sticker tape to contact the paper bag, placing the sticker on the designated position on the paper bag. Then, the suction cup on the sticker slide rail drives the sticker to rotate around the crease, so that the paper bag is sealed with the crease as the boundary.

[0046] Example:

[0047] This example presents a mechanically automated rotary fixture for use in food packaging systems.

[0048] like Figure 1 As shown, the packaging system includes a base 1, a material limiting mechanism 2, and a height adjustment device 3. In the fixing device 1, a baffle 7 is connected to a sliding rod 16. A stepper motor 6 drives the baffle to move horizontally on the sliding rod 16. Next to the material limiting mechanism 2 is the height adjustment device 3. A support roller 5 is connected to a support frame 4, allowing the support frame 4 to move vertically and adjust its height via the support roller 5. A cylinder 11 is connected to a bracket 13 and a stepper motor 12. The cylinder 11 on the bracket 13, via the stepper motor 12, causes the pressing block 25 to move vertically. Since the pressing block 25 is connected to a gear 24, the gear 26 drives the pressing block 25 to move obliquely downwards. The rear pressing plate 14 is connected to a lead screw slider 15, which is connected to a lead screw lifting platform 16. The pressing plate 14 moves up and down on the lead screw slider 15.

[0049] Please see Figure 5 The roller 19 is connected to a gear reducer motor 18, which rotates and is connected to the sticker slider 20. The rotation of the roller 19 causes the gear reducer motor 18 to rotate, driving the sticker slider 20 to move. The suction cup 21 is connected to a suction cup bracket 22, which in turn is connected to the sticker slider 20. The suction cup bracket 21 can move on the sticker slider 20, and the suction cup 22 can rotate 90 degrees to facilitate sealing.

[0050] The implementation principle of the bag sealing method of an automated food packaging production line according to this application embodiment is as follows: After the food packaging box to be processed moves to the designated position on the belt, the length, width, and height data are analyzed and stopped at the appropriate position, and the machine starts to run. The stepper motor 6 drives the support roller 5 to move, and the support roller 5 drives the support frame 4 to move vertically. When the paper bag reaches a certain height, the movement stops. In the subsequent fixing device, the baffle 7 moves horizontally on the sliding rod 8 to fix the paper bag at the calculated position. After fixing, the information is transmitted to the extrusion module, and the first cylinder 11 drives the pressure block 25 to move downward. The stepper motor 12 of the extrusion module drives the gear 26 to rotate, moving the extrusion block 10 at the connection point diagonally downward, leaving a crease on the paper bag. At the same time, the cylinder 11 in the pressure block module makes the pressure block move vertically, leaving a crease under the action of the extrusion blocks 10 on both sides. Then, in the pressing module, the pressing plate 14 on the lead screw slider 15 is moved to the calculated position by the stepper motor 12, leaving an indentation and deepening the previous indentation. Under the action of stepper motor 12, roller 17 moves downward to deepen the crease. Using speed-regulating gear reducer motor 18, the sticker on sticker strip 15 is applied to the designated position on paper bag during the movement of roller 19. After the sticker is applied, the adhesive module uses suction cup 22 on sticker slide rail 20 to reverse the sticker by 90 degrees to complete the sealing of the bag.

[0051] Preferably, the above process is monitored by the infrared sensor 23 and the vision camera 24 of the external device. The infrared sensor 23 detects the entry of the paper bag and sends a feedback signal to stop the conveyor belt and prevent the paper bag from accumulating. The vision camera 24 identifies the paper bag and adjusts it to the required height. If any abnormality occurs, the system will stop immediately and its operating status can be monitored.

Claims

1. A food packaging system, characterized in that: The bag sealing mechanism is located at the food packaging production line. The base (1) of the bag sealing mechanism includes a material limiting mechanism (2) for moving the packaging paper bag to the required position and a material height adjustment mechanism (3). It also includes an extrusion module for forming an indentation on the paper bag. The material height adjustment mechanism includes a first stepper motor (6), a support roller (5), and a support frame (4) connected to the base via a belt (9). The extrusion module is adjacent to the sticker module. The material height adjustment mechanism drives the support frame (4) to move via the first stepper motor (6) and the support roller (5), so that the packaging bag is moved vertically to the required position; the material limiting mechanism includes a baffle (7) that is driven by the first stepper motor to move horizontally on the sliding rod (8). After the baffle fixes the packaging paper bag in the required position, the extrusion module extrudes the paper bag through the extrusion block and the pressure plate in turn, so that the paper bag forms a crease that can be recognized by the external infrared sensing device (23) and visual camera (24). The extrusion module includes an extrusion block mechanism for driving the extrusion block (10) and a tableting mechanism for driving the tablet (14); The extrusion block mechanism includes a second stepper motor (12), a bracket (13), an extrusion block (10), a pressure block (25), and an extrusion gear (26). One end of the extrusion block (10) is connected to a first cylinder (11), and the other end of the first cylinder (11) is rotatably connected to one side of the bracket (13) of the extrusion block (10) through the second stepper motor (12). The first cylinder (11) drives the pressing block (25) to move obliquely downward through the extrusion gear (26), and applies force to the paper bag fixed by the material limiting mechanism; that is, when the first cylinder drives the pressing block to move downward, the second stepper motor (12) of the extrusion module drives the extrusion gear (26) to rotate, and moves the extrusion block (10) at the connection point obliquely downward, leaving a crease on the paper bag; The tableting mechanism includes a tablet press (14), a screw-slider mechanism (15), and a connecting rod (16). The number of the pressure plates (14) is two. The outer surface of one end of the two screw slider mechanisms (15) is connected to the pressure plate (14) and the connecting rod (16) respectively. The outer surface of the other end of the two connecting rods (16) is connected to the outer wall of the middle part of the two pressure plates (14) respectively. The pressing plate (14) is connected to the screw and slider mechanism (15) and the connecting rod (16), so that the pressing plate moves up and down at the screw and slider mechanism.

2. The food packaging system according to claim 1, characterized in that: Once the packaging paper bag is fixed in the desired position, the extrusion block of the extrusion block mechanism first applies pressure to the supported central area of ​​the paper bag to leave a crease along the center line of the paper bag. Then, the pressing plate of the pressing plate mechanism moves to the crease and applies pressure to the paper bag again to deepen the crease and form a pressed edge.

3. The food packaging system according to claim 2, characterized in that: The pressing sheet also includes a first roller (17) driven by a second stepper motor (12). When the pressing sheet applies pressure to the paper bag again, the second stepper motor drives the first roller to move at the crease to further deepen the crease.

4. The food packaging system according to claim 3, characterized in that: The sticker module includes a speed-regulating gear reducer motor (18), a sticker slide rail (20), a suction cup bracket (21), a suction cup (22), and a sticker strip for holding the sticker. It is fixedly connected to one side of the outer surface of one end of the second roller (19) by a fixing rod. The outer surface of the middle part of the speed-regulating gear reducer motor (18) is relatively stationary with the outer surface of one side of the sticker strip. One side of the outer surface of one end of the sticker slide rail (20) is fixedly connected to one side of the suction cup bracket (21), and the middle part of the suction cup bracket (21) is rolledly connected to one end of the outer surface of the suction cup (22).

5. The food packaging system according to claim 1, characterized in that: After the first roller moves along the crease to further deepen it, the second roller drives the sticker tape to contact the paper bag and apply the sticker to the designated position on the paper bag.