Fully automatic rounded corner packaging machine

By parametrically controlling the synergistic effect of the electric hydraulic cylinder and the drive motor, combined with modular design, the problem of lack of precise dosage control in the preparation of tangerine peel pills in fully automatic rounded corner packaging machines has been solved, achieving accurate quantification and rapid curvature adjustment, thus improving equipment adaptability and production efficiency.

CN224277772UActive Publication Date: 2026-05-26ZHEJIANG UNIVERSITY OF TRADITIONAL CHINESE MEDICINE (QUZHOU QUJIANG) RESEARCH INSTITUTE CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG UNIVERSITY OF TRADITIONAL CHINESE MEDICINE (QUZHOU QUJIANG) RESEARCH INSTITUTE CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing fully automatic rounded corner packaging machines lack precise dosage control functions in the preparation of tangerine peel pills, which increases the complexity of the production line and human error, affecting product quality and consistency.

Method used

By parametrically controlling the coordination between the stroke of the electric hydraulic cylinder and the speed of the drive motor, precise matching of the quantitative packaging requirements for different specifications of tangerine peel pills can be achieved. Furthermore, the modular design enables quick replacement of the fitting plate to adjust the rounded corner radius.

Benefits of technology

It achieves precise control of packaging quantity and quick replacement of rounded corners, improving the adaptability and production efficiency of the equipment, and reducing human error and production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of dried tangerine peel packaging technology and discloses a fully automatic rounded corner packaging machine, including a processing table. A material hopper is fixedly connected to the top right side of the processing table, and connecting tables are fixedly connected to both the front and rear sides of the left end of the processing table. A fixed frame is fixedly connected to the bottom of the inner wall of the material hopper. A second movable table is connected to the bottom of the fixed frame via a drive assembly. A first movable table is slidably connected to the inner wall of the second movable table. An electric hydraulic cylinder is fixedly connected to the rear side of the top of the fixed frame. The drive end of the electric hydraulic cylinder is connected to an inclined platform via a control assembly. Electric push rods are fixedly connected to opposite ends of the connecting tables. In this utility model, by parametrically controlling the coordination between the stroke of the electric hydraulic cylinder and the speed of the drive motor, the quantitative packaging requirements of different specifications of dried tangerine peel pills can be accurately matched, and the operation time for adjusting the rounded corner radius is shortened, significantly improving the adaptability of the equipment to different packaging specifications.
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Description

Technical Field

[0001] This utility model relates to the field of dried tangerine peel packaging technology, and in particular to a fully automatic rounded corner packaging machine. Background Technology

[0002] The application of fully automatic rounded corner packaging machines in the preparation of Chenpi pills mainly involves automatically rounding the right-angled edges of the packaging boxes to improve the product's appearance and safety. As a traditional Chinese medicine preparation, Chenpi pills are usually packaged in paper or plastic bags. Fully automatic rounded corner packaging machines can efficiently and accurately transform the sharp right angles of the packaging bags into rounded arcs, avoiding wear or deformation of the corners during transportation and storage.

[0003] The main function of a fully automatic corner rounding packaging machine is to round the corners of the packaging bag. However, as a traditional Chinese medicine preparation, Chenpi pills usually require precise dosage control to ensure efficacy and safety. But the core technology of the corner rounding packaging machine does not include this function, which means that manual operation is required in actual production. This not only increases the complexity and cost of the production line, but may also introduce human error, affecting product quality and consistency.

[0004] In response to this technical problem, this application proposes a fully automatic rounded corner packaging machine. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fully automatic rounded corner packaging machine. By parametrically controlling the coordination between the stroke of the electric hydraulic cylinder and the speed of the drive motor, it can accurately match the quantitative packaging requirements of different specifications of tangerine peel pills, shorten the operation time for adjusting the rounded corner radius, and significantly improve the adaptability of the equipment to different packaging specifications.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A fully automatic rounded corner packaging machine includes a processing table. A material hopper is fixedly connected to the top right side of the processing table. Connecting tables are fixedly connected to both the front and rear sides of the left side of the processing table. A fixed frame is fixedly connected to the bottom of the inner wall of the material hopper. A second movable table is connected to the bottom of the fixed frame via a drive assembly. A first movable table is slidably connected to the inner wall of the second movable table. An electric hydraulic cylinder is fixedly connected to the rear side of the top of the fixed frame. The drive end of the electric hydraulic cylinder is connected to an inclined table via a control assembly. Electric push rods are fixedly connected to opposite ends of the connecting tables. Connecting columns are connected to the drive ends of the electric push rods via an installation assembly. Pull rods are slidably connected to the bottom ends of the connecting columns. Fitting plates are connected to the top ends of the pull rods via a fixed assembly.

[0008] Furthermore, a transmission wheel is installed at the top of the processing table, a packaging bag is fitted at the rear end of the transmission wheel, a shrink tube is fixedly connected to the outer wall of the left end of the processing table, a discharge port is fixedly connected to the inner wall of the left end of the processing table, and a sealing device is installed on both the front and rear sides of the left end of the processing table.

[0009] Furthermore, the drive assembly includes a drive motor fixedly connected to the bottom end of the fixed frame, a transmission column fixedly connected to the drive end of the drive motor, the outer wall of the second movable stage slidingly connected to the outer wall of the transmission column, and the bottom end of the first movable stage fixedly connected to the top end of the transmission column.

[0010] Furthermore, the control assembly includes a transition ring fixedly connected to the drive end of the electric hydraulic cylinder, a sliding tube fixedly connected to the top of the transition ring, an inclined platform fixedly connected to the top of the sliding tube, the top of the inclined platform being rotatably connected to the outer wall of the inclined platform, and the inner wall of the sliding tube being sleeved on the outer wall of the transmission column.

[0011] Furthermore, the bottom left and right sides of the second movable platform are rotatably connected to a feeding plate, and the opposite end of the feeding plate is in close contact with the outer wall of the inclined platform. A fixing plate is fixedly connected to the inner wall of the top of the hopper.

[0012] Furthermore, the mounting assembly includes docking plates fixedly connected to the drive end of the electric push rod, and the outer walls of the connecting columns are fixedly connected to the left and right ends of the docking plates and pass through them.

[0013] Furthermore, the fixing assembly includes a transition block fixedly connected to the top of the pull rod. Both ends of the transition block are rotatably connected to a support plate one. Both ends of the support plate one are rotatably connected to a support plate two. The ends of the support plate two are tightly attached to the inner wall of the fitting plate.

[0014] Furthermore, each of the pull rods is equipped with a return spring on its outer wall, the top end of each return spring is fixedly connected to the bottom end of the adapter block, and the bottom end of each return spring is fixedly connected to the bottom end of the inner wall of the connecting column.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the material is introduced into the cavity between the first and second moving platforms via a fixed plate. In the initial state, the inclined platform squeezes the material to keep the discharge plate horizontal, ensuring that the cavity can stably hold the material. The drive motor drives the two moving platforms to rotate through the transmission column, causing the discharge plate to slide along the inclined platform. When the discharge plate moves to the inclined section of the inclined platform, the weight of the material causes it to tilt. The material in the cavity slides along the discharge plate into the discharge port to complete the quantitative discharge. The electric hydraulic cylinder changes the cavity volume by adjusting the distance between the moving platforms. When the distance is shortened, the material capacity decreases. Combined with the speed control of the drive motor, the discharge volume can be precisely adjusted.

[0017] 2. In this utility model, when replacing the mating plate, the pull rod inside the connecting column is pulled outward to drive the adapter block to extend the support plate one and support plate two. After the locking of the mating plate is released, it is disassembled. After the new mating plate is fitted into the connecting column, the pull rod is released, and the return spring pushes the adapter block to return to its original position, causing the two support plates to expand elastically outward. Their ends are inserted into the grooves on the inner wall of the mating plate to form a self-locking mechanism, thus completing the quick replacement. Attached Figure Description

[0018] Figure 1 This is a perspective view of the fully automatic rounded corner packaging machine proposed in this utility model;

[0019] Figure 2 This is a half-sectional view of the processing table of the fully automatic rounded corner packaging machine proposed in this utility model;

[0020] Figure 3 This is a half-sectional view of the hopper of the fully automatic rounded corner packaging machine proposed in this utility model;

[0021] Figure 4 This is a two-half sectional view of the moving table of the fully automatic rounded corner packaging machine proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the transmission wheel structure of the fully automatic rounded corner packaging machine proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the connecting table structure of the fully automatic rounded corner packaging machine proposed in this utility model;

[0024] Figure 7 This is a half-sectional view of the fitting plate of the fully automatic rounded corner packaging machine proposed in this utility model;

[0025] Figure 8 This is a half-sectional view of the connecting column of the fully automatic rounded corner packaging machine proposed in this utility model.

[0026] Legend:

[0027] 1. Processing table; 2. Material hopper; 3. Transmission wheel; 4. Shrink tube; 5. Sealer; 6. Connecting table; 7. Discharge port; 8. Fixed plate; 9. Moving table one; 10. Moving table two; 11. Fixed frame; 12. Drive motor; 13. Transmission column; 14. Discharge plate; 15. Electric hydraulic cylinder; 16. Adapter ring; 17. Support plate one; 18. Sliding tube; 19. Inclined table; 20. Electric push rod; 21. Butt plate; 22. Fitting plate; 23. Connecting column; 24. Pull rod; 25. Adapter block; 26. Return spring; 27. Support plate two. Detailed Implementation

[0028] 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.

[0029] Reference Figures 1-3 This utility model provides an embodiment of a fully automatic rounded corner packaging machine, including a processing table 1. A material hopper 2 is fixedly connected to the right side of the top of the processing table 1. Connecting tables 6 are fixedly connected to both the front and rear sides of the left end of the processing table 1. A fixed frame 11 is fixedly connected to the bottom of the inner wall of the material hopper 2. A second movable table 10 is connected to the bottom of the fixed frame 11 via a drive group. A first movable table 9 is slidably connected to the inner wall of the second movable table 10. An electric hydraulic cylinder 15 is fixedly connected to the rear side of the top of the fixed frame 11. The drive end of the electric hydraulic cylinder 15 is connected to an inclined table 19 via a control group. A transmission wheel 3 is installed on the top of the processing table 1. A packaging bag is fitted onto the rear end of the transmission wheel 3. A shrink tube 4 is fixedly connected to the outer wall of the left end of the processing table 1. A discharge port 7 is fixedly connected to the inner wall of the left end of the processing table 1. Sealers 5 are installed on both the front and rear sides of the left end of the processing table 1. The drive group includes a drive motor 12 fixedly connected to the bottom of the fixed frame 11. (See reference...) Figure 4 The drive motor 12 is fixedly connected to the drive end of the transmission column 13. The outer wall of the second moving platform 10 is slidably connected to the outer wall of the transmission column 13. The bottom end of the first moving platform 9 is fixedly connected to the top end of the transmission column 13. The control group includes a transition ring 16 fixedly connected to the drive end of the electric hydraulic cylinder 15. A sliding tube 18 is fixedly connected to the top end of the transition ring 16. An inclined platform 19 is fixedly connected to the top end of the sliding tube 18. The top end of the inclined platform 19 is rotatably connected to the outer wall of the inclined platform 19. The inner wall of the sliding tube 18 is sleeved on the outer wall of the transmission column 13. The bottom left and right sides of the second moving platform 10 are rotatably connected to the discharge plate 14. The opposite end of the discharge plate 14 is tightly attached to the outer wall of the inclined platform 19. A fixing plate 8 is fixedly connected to the inner wall of the top end of the hopper 2.

[0030] Specifically: In the quantitative discharge control process of the tangerine peel pills in the fully automatic rounded corner packaging machine, the tangerine peel pills, which are used as packaging raw materials, are first stored in the hopper 2. Through the directional guidance of the fixed plate 8, the raw materials are evenly transported to the preset station between the moving table 1 9 and the moving table 2 10. At this stage, the discharge plate 14 is kept parallel by the horizontal support of the inclined table 19, so that the connection end of the moving table 1 9 and the moving table 2 10 forms a stable cavity structure to realize the temporary storage of the tangerine peel pills. When the drive motor 12 starts, its output shaft drives the moving table 2 10 and the moving table 1 9 to rotate synchronously through the transmission column 13, driving the tangerine peel pills fixed on the moving table 2 10. The feeding plate 14 slides along the track of the inclined platform 19. As the feeding plate 14 moves to the inclined section of the inclined platform 19, under the combined action of the raw material's own weight and the inclined geometry, the feeding plate 14 tilts at a controllable angle, causing the temporarily stored tangerine peel pills in the cavity to slide down the inclined surface to the discharge port 7 for quantitative discharge. To precisely control the single discharge volume, the electric hydraulic cylinder 15 dynamically adjusts the cavity volume between the second moving platform 10 and the first moving platform 9 through its telescopic movement: when the hydraulic cylinder 15 shortens, the distance between the two moving platforms decreases, and the cavity volume decreases. At this time, when the drive motor 12 drives the transmission column 13 to rotate, the amount of raw material flowing out of the feeding plate 14 per unit time decreases synchronously. This linkage mechanism realizes the stepless adjustment function of the discharge volume. By parametrically controlling the coordination relationship between the stroke of the electric hydraulic cylinder 15 and the speed of the drive motor 12, the quantitative packaging requirements of different specifications of tangerine peel pills can be precisely matched.

[0031] Reference Figures 5-7 Each end of the connecting platform 6 is fixedly connected to an electric push rod 20. The driving end of the electric push rod 20 is connected to a connecting column 23 via an installation assembly. The bottom end of each connecting column 23 is slidably connected to a pull rod 24. The top end of each pull rod 24 is connected to a mating plate 22 via a fixing assembly. The installation assembly includes a docking plate 21 fixedly connected to the driving end of the electric push rod 20. The outer walls of the connecting column 23 are fixedly connected to the left and right ends of the docking plate 21 and pass through it. The fixing assembly includes a transition block 25 fixedly connected to the top end of each pull rod 24. The front and rear ends of the transition block 25 are rotatably connected to a support plate 17. The opposite end of the support plate 17 is rotatably connected to a support plate 27. The opposite end of the support plate 27 is pressed against the inner wall of the mating plate 22. Each pull rod 24 is equipped with a return spring 26. (See reference) Figure 8 The top of the reset spring 26 is fixedly connected to the bottom of the adapter block 25, and the bottom of the reset spring 26 is fixedly connected to the bottom of the inner wall of the connecting column 23.

[0032] Specifically: In the bag forming and rounding process of the fully automatic rounded corner packaging machine, the transmission wheel 3, through an internally installed continuous rotating device such as a motor, transports the flat packaging bag fixed on its surface towards the shrink tube 4. When the packaging bag enters the high-temperature area of ​​the shrink tube 4, the heat-shrinkable material undergoes directional shrinkage under the action of 120-150℃ hot air, gradually forming a tightly fitted cylindrical structure. At this time, the raw material of the tangerine peel pills, precisely dispensed from the quantitative discharge port 7, falls into the cylindrical packaging bag along the guide channel, completing the material filling. Subsequently, the bidirectional hot-pressing module of the sealing device 5 performs heat-melting sealing on the upper and lower ends of the packaging bag, ensuring that the sealing strength reaches the IP67 protection level. After the basic sealing is completed, the electric push rod 20 drives the fitting plate 22 to move along the preset trajectory. Its cutting edge is made of hard alloy material, and the pressure adaptive system performs rounded corner cutting on the end of the packaging bag, forming an arc transition structure with an adjustable radius.

[0033] When the fillet radius needs adjustment, the operator pulls the built-in pull rod 24 of the connecting column 23 outward, causing the adapter block 25 to move axially. This causes the support plate 17 and support plate 27 to change from a bent state to a straight state, thereby releasing the radial locking force on the current mating plate 22 and enabling quick disassembly of the old component. When replacing the new specification mating plate 22, after fitting it onto the outer wall of the connecting column 23, the pull rod 24 is released, causing the return spring 26 to push the adapter block 25 to reset. At this time, the support plate 17 and support plate 27 expand elastically outward under the action of elastic potential energy. Their end claws form a mechanical interlock with the annular groove on the inner wall of the mating plate 22, ensuring the stable installation of the new component within a torque range of 30 N·m. This modular design reduces the fillet radius adjustment operation time to within 2 minutes, significantly improving the equipment's adaptability to different packaging specifications.

[0034] Working principle: After the tangerine peel pills used as packaging material are placed in the hopper 2, the material is fed between the moving platform 1 9 and the moving platform 2 10 through the fixed plate 8. At this time, the feeding plate 14 is kept parallel under the pressure of the inclined platform 19, so that a cavity is formed at the connection between the moving platform 1 9 and the moving platform 2 10 to accommodate the material. When the drive motor 12 starts, it drives the transmission column 13 to rotate the moving platform 2 10 and the moving platform 1 9, so that the feeding plate 14 at the moving platform 2 10 moves along the inclined platform 19. When the material is moved to the inclined surface of the inclined platform 19, the material discharge plate 14 tilts under the gravity of the material, allowing the material contained in the second moving platform 10 to flow along the material discharge plate 14 to the discharge port 7, so that the material is discharged from the discharge port 7. When the electric hydraulic cylinder 15 is activated to move, the space between the second moving platform 10 and the first moving platform 9 is shortened, so that the material contained between them is reduced. When the drive motor 12 is activated to drive the transmission column 13 to rotate, the material flowing out of the material discharge plate 14 will be reduced, so that the device can adjust the discharge amount of the material according to the needs.

[0035] When the conveyor wheel 3 conveys the packaging bag mounted on its surface, the packaging bag shrinks into a cylindrical shape under the influence of gravity along the high temperature inside the shrink tube 4. At this time, the raw material falling from the discharge port 7 is fed into the cylindrical packaging bag. After the packaging bag forms a cylindrical shape, the sealing device 5 heat-seals the top and bottom of the packaging bag. Then, the fitting plate 22 connected to the electric push rod 20 rounds the corners of the packaging bag to facilitate the formation of rounded corners. When it is necessary to replace the fitting plate 22 with a different rounded corner curvature, Pulling the inner pull rod 24 of the connecting column 23 causes the adapter block 25 to pull the support plate 17 and the support plate 27 to straighten, thereby allowing the mating plate 22 to detach from the connecting column 23. After the new mating plate 22 is fitted onto the connecting column 23, the pull rod 24 is released, causing the return spring 26 to press the adapter block 25 to move. This causes the support plate 17 and the support plate 27 to open to both sides to pass through the inner wall of the mating plate 22 under the connecting column 23, thus fixing the mating plate 22 and facilitating quick replacement of the mating plate 22.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A fully automatic rounded corner packaging machine, including a processing table (1), characterized in that: A hopper (2) is fixedly connected to the right side of the top of the processing table (1). A connecting table (6) is fixedly connected to both the front and rear sides of the left end of the processing table (1). A fixed frame (11) is fixedly connected to the bottom of the inner wall of the hopper (2). A moving table (10) is connected to the bottom of the fixed frame (11) via a drive group. A moving table (9) is slidably connected to the inner wall of the moving table (10). An electric hydraulic cylinder (15) is fixedly connected to the rear side of the top of the fixed frame (11). An inclined table (19) is connected to the drive end of the electric hydraulic cylinder (15) via a control group. An electric push rod (20) is fixedly connected to one end of the connecting table (6). A connecting column (23) is connected to the drive end of the electric push rod (20) via an installation group. A pull rod (24) is slidably connected to the bottom of the connecting column (23). A fitting plate (22) is connected to the top of the pull rod (24) via a fixed group.

2. The fully automatic rounded corner packaging machine according to claim 1, characterized in that: The processing table (1) is equipped with a transmission wheel (3) at the top and a packaging bag is fitted at the rear end of the transmission wheel (3). A shrink tube (4) is fixedly connected to the outer wall of the left end of the processing table (1). A discharge port (7) is fixedly connected to the inner wall of the left end of the processing table (1). Sealers (5) are installed on both the front and rear sides of the left end of the processing table (1).

3. The fully automatic rounded corner packaging machine according to claim 1, characterized in that: The drive assembly includes a drive motor (12) fixedly connected to the bottom of the fixed frame (11), and a transmission column (13) fixedly connected to the drive end of the drive motor (12). The outer wall of the second moving platform (10) is slidably connected to the outer wall of the transmission column (13), and the bottom end of the first moving platform (9) is fixedly connected to the top end of the transmission column (13).

4. The fully automatic rounded corner packaging machine according to claim 1, characterized in that: The control group includes a transition ring (16) fixedly connected to the drive end of the electric hydraulic cylinder (15). A sliding tube (18) is fixedly connected to the top of the transition ring (16). An inclined platform (19) is fixedly connected to the top of the sliding tube (18). The top of the inclined platform (19) is rotatably connected to the outer wall of the inclined platform (19). The inner wall of the sliding tube (18) is sleeved on the outer wall of the transmission column (13).

5. The fully automatic rounded corner packaging machine according to claim 1, characterized in that: The bottom left and right sides of the movable platform (10) are rotatably connected to a feeding plate (14). The opposite end of the feeding plate (14) is close to the outer wall of the inclined platform (19). The inner wall of the top of the hopper (2) is fixedly connected to a fixing plate (8).

6. The fully automatic rounded corner packaging machine according to claim 1, characterized in that: The mounting assembly includes docking plates (21) that are fixedly connected to the driving end of the electric push rod (20), and the outer walls of the connecting columns (23) are fixedly connected to the left and right ends of the docking plates (21) and pass through them.

7. The fully automatic rounded corner packaging machine according to claim 1, characterized in that: The fixing group includes a transition block (25) fixedly connected to the top of the pull rod (24). The front and rear ends of the transition block (25) are rotatably connected to a support plate one (17). The opposite end of the support plate one (17) is rotatably connected to a support plate two (27). The opposite end of the support plate two (27) is in close contact with the inner wall of the fitting plate (22).

8. The fully automatic rounded corner packaging machine according to claim 1, characterized in that: Each of the pull rods (24) is equipped with a return spring (26) on its outer wall. The top of each return spring (26) is fixedly connected to the bottom of the adapter block (25), and the bottom of each return spring (26) is fixedly connected to the bottom of the inner wall of the connecting column (23).