Auxiliary bag blowing and boxing mechanism of boxing machine

By replacing mechanical push rods with air-blowing components on the cartoning machine, the interference problem during high-speed operation is solved by using airflow to push the medicine bags non-contactly, which improves the accuracy and stability of box insertion, simplifies the mechanical structure and reduces maintenance costs.

CN223999852UActive Publication Date: 2026-03-17KUNMING CHINESE MEDICINE FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

When existing cartoning machines are running at high speeds, the aluminum-plastic film inner bags are prone to reverse rebound, which can cause interference with the guiding mechanism or steel lettering printing device, resulting in quality problems such as missing batch number markings on the packaging boxes, affecting product qualification rate and production efficiency.

Method used

The air blowing assembly replaces the mechanical push rod. Compressed airflow is used through an adjustable air blowing nozzle and a hollow adjusting screw structure. Combined with the linkage control of the throttle valve and the solenoid valve, the non-contact pushing of the medicine bag is achieved. The airflow distance and intensity can be flexibly adjusted according to the size of the medicine bag and the specifications of the box.

Benefits of technology

It improves the positioning accuracy and stability of medicine bags entering the box, simplifies the mechanical structure, reduces equipment maintenance costs and failure rate, and achieves optimized energy utilization.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223999852U_ABST
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Abstract

The utility model discloses a boxing machine auxiliary blowing bag boxing mechanism which comprises a conveying assembly and a folding assembly, an air blowing assembly is arranged between the conveying assembly and the folding assembly and comprises a support, a connecting frame is movably connected to the support, an air blowing nozzle frame is connected to the connecting frame, and the air blowing nozzle frame is connected to the conveying assembly. The convex blowing nozzle frame is movably connected with a hollow adjusting screw rod, one end of the hollow adjusting screw rod is in threaded connection with a blowing nozzle, and the blowing nozzle is communicated with the hollow adjusting screw rod; the other end of the hollow adjusting screw rod is communicated with an air pipe through an air pipe connector, and the other end of the air pipe is sequentially communicated with a throttling valve and an electromagnetic valve. In the secondary boxing process of the medicine bag, instant compressed air flow jetted by the air blowing nozzle can replace direct contact type pushing of a traditional mechanical push rod, the collision risk generated by interference between a mechanical assembly and other moving assemblies is eliminated through non-contact acting force, the working efficiency is improved, and the equipment maintenance cost and the failure rate are reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of packaging machinery technology, specifically relating to an auxiliary bag blowing and box-in mechanism for a cartoning machine. Background Technology

[0002] With the continuous development of automation technology in pharmaceutical packaging, intermittent cartoning machines are increasingly widely used in the pharmaceutical packaging field. Existing equipment typically uses a servo pusher to insert the aluminum-plastic film inner bag into the packaging box. However, in actual production, it has been found that the surface of the aluminum-plastic film inner bag after pillow packaging is smooth. When the high-speed pusher pushes the inner bag to the end of the box, the inner bag is prone to reverse rebound due to the reaction force of the rear stop. Especially during the lateral transfer process, the rebounding inner bag can easily interfere with the guiding mechanism or the steel lettering printing device, causing quality problems such as missing batch number markings on the packaging box. This technical defect not only leads to a decrease in product qualification rate but also forces companies to reduce equipment operating speed to maintain production quality, severely restricting the improvement of packaging efficiency. There is an urgent need for structural innovation to achieve stable cartoning operations under high-speed operating conditions. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, this utility model provides an auxiliary bag blowing and boxing mechanism for a cartoning machine.

[0004] The technical solution of this utility model is: an auxiliary bag blowing and box-in mechanism for a cartoning machine, including a conveying component and a folding component, with an air blowing component provided between the conveying component and the folding component. The air blowing component includes a support, a connecting frame movably connected to the support, a convex air nozzle frame connected to the connecting frame, a hollow adjusting screw movably connected to the convex air nozzle frame, one end of the hollow adjusting screw being threadedly connected to the air nozzle, and the air nozzle communicating with the hollow adjusting screw; the other end of the hollow adjusting screw communicating with an air pipe through an air pipe connector, and the other end of the air pipe communicating sequentially with a throttle valve and a solenoid valve.

[0005] Furthermore, the support has a square through hole in the middle, and the connecting frame and the convex air nozzle frame are connected to the support by bolts, with the bolts passing through the square through hole.

[0006] Furthermore, the convex air nozzle holder has a threaded hole, through which the hollow adjusting screw passes, and the internal thread of the threaded hole corresponds to the thread on the surface of the hollow adjusting screw.

[0007] Furthermore, the air pipe connector is an elbow air pipe connector; the solenoid valve is provided with an air inlet and an air outlet, and the air pipe is connected to the air outlet.

[0008] Furthermore, the conveying assembly includes a medicine box conveyor belt and a medicine bag conveyor belt, which are connected by a connecting block. The connecting block is provided with a medicine bag conveying channel; the support is fixedly connected to the connecting block.

[0009] Furthermore, the medicine bag conveyor belt is equipped with a partition; the medicine box conveyor belt is equipped with a medicine box fixing block.

[0010] Furthermore, the folding assembly includes folding rod I and folding rod II. Folding rod I is fixed to an L-shaped support block by a pad, and the L-shaped support block is fixed to one side of the medicine box conveyor belt. A shaping rod is fixed to the left side of folding rod I, and folding rod I is an L-shaped rod.

[0011] Furthermore, one end of the folding rod II is connected to a transmission rod, and the other end of the folding rod II is curved in an arc shape; the L-shaped support block has a through hole, and a bearing seat is provided on the L-shaped support block at the position corresponding to the through hole; the transmission rod passes through the through hole and is rotatably connected to the inside of the bearing seat.

[0012] The beneficial effects of this utility model are:

[0013] This invention utilizes an air nozzle in the air-blowing assembly, combined with the coordinated control of a throttle valve and a solenoid valve, to replace the direct contact pushing of traditional mechanical push rods during the secondary insertion of medicine bags into the box. This non-contact force eliminates the risk of collision caused by interference between mechanical components and other moving parts. The invention employs an adjustable air nozzle holder and a hollow adjusting screw structure, allowing for flexible adjustment of the airflow distance and intensity according to the size of the medicine bag and the box specifications, significantly improving the positioning accuracy and stability of the medicine bag insertion. Compared to traditional pneumatic pusher mechanisms, this invention greatly simplifies the mechanical structure complexity through airflow-driven technology, reducing the number of moving parts and lowering equipment maintenance costs and failure rates. Simultaneously, the intelligent program dynamically controls the opening and closing sequence of the solenoid valve and the airflow intensity, ensuring efficient medicine bag insertion while optimizing energy utilization. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the air blowing assembly of this utility model;

[0016] Figure 3 This is a schematic diagram of the folding component structure of this utility model.

[0017] In the attached diagram, 1 is a support, 2 is a connecting frame, 3 is a square through hole, 4 is a convex air nozzle holder, 4-1 is a threaded hole, 5 is a hollow adjusting screw, 6 is an air nozzle, 7 is an air pipe connector, 8 is a throttle valve, 9 is a solenoid valve, 10 is an air outlet, 11 is an air inlet, 12 is a medicine box conveyor belt, 13 is a medicine box fixing block, 14 is a medicine box, 15 is a medicine bag conveyor belt, 16 is a partition, 17 is a medicine bag, 18 is a folding rod I, 19 is an L-shaped support block, 20 is a shaping rod, 21 is a folding rod II, 22 is a pad, 23 is a transmission rod, 24 is a bolt, 25 is a connecting block, 26 is a medicine bag conveying channel, and 27 is a bearing seat. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] like Figure 1 and Figure 2 As shown, an auxiliary bag-blowing and box-in mechanism for a cartoning machine includes a conveying assembly and a folding assembly. An air-blowing assembly is provided between the conveying assembly and the folding assembly. The air-blowing assembly includes a support 1, a connecting frame 2 movably connected to the support 1, a convex air nozzle frame 4 connected to the connecting frame 2, a hollow adjusting screw 5 movably connected to the convex air nozzle frame 4, one end of the hollow adjusting screw 5 being threadedly connected to an air nozzle 6, and the air nozzle 6 communicating with the hollow adjusting screw 5; the other end of the hollow adjusting screw 5 is connected to an air pipe through an air pipe connector 7, and the other end of the air pipe is connected in sequence to a throttle valve 8 and a solenoid valve 9.

[0020] This invention utilizes compressed airflow to blow the bag into the box, avoiding interference with other mechanical components during secondary bagging and ensuring proper boxing. It employs an adjustable convex nozzle holder 4 and a hollow adjusting screw 5, allowing for flexible adjustment of the airflow distance and intensity based on the size of the medicine bag 17 and the specifications of the medicine box 14, significantly improving the positioning accuracy and stability of the medicine bag. A throttle valve 8 regulates the air pressure in the air pipe, and a solenoid valve 9 controls the timing of the blowing.

[0021] In a preferred embodiment of the present invention, the support 1 has a square through hole 3 in the middle, and the connecting frame 2 and the convex air nozzle frame 4 are connected to the support 1 by bolts 24, which pass through the square through hole 3; the left and right positions of the connecting frame 2 and the convex air nozzle frame 4 can be adjusted by adjusting the tightness of the bolts 24.

[0022] As a preferred embodiment of this utility model, the convex air nozzle holder 4 has a threaded hole 4-1, and the hollow adjusting screw 5 passes through the threaded hole 4-1. The internal thread of the threaded hole 4-1 corresponds to the thread on the surface of the hollow adjusting screw 5. When installing the hollow adjusting screw 5, the hollow adjusting screw 5 can be rotated according to the blowing intensity, distance, etc. to adjust the distance of the airflow.

[0023] In a preferred embodiment of this utility model, the air pipe connector 7 is an elbow air pipe connector; the solenoid valve 9 is provided with an air inlet 11 and an air outlet 10, and the air pipe is connected to the air outlet 10; the elbow air pipe connector can save space and avoid collision and interference with other components.

[0024] In a preferred embodiment of this utility model, the conveying assembly includes a medicine box conveyor belt 12 and a medicine bag conveyor belt 15, which are connected by a connecting block 25. The connecting block 25 is provided with a medicine bag conveying channel 26. The support 1 is fixedly connected to the connecting block 25. The medicine bags 17 on the medicine bag conveyor belt 15 are pushed into the medicine box 14 by an external mechanical pusher through the medicine bag conveying channel 26. Both the medicine box conveyor belt 12 and the medicine bag conveyor belt 15 are driven by the drive system of the cartoning machine.

[0025] In a preferred embodiment of the present invention, a partition 16 is provided on the medicine bag conveyor belt 15; and a medicine box fixing block 13 is provided on the medicine box conveyor belt 12.

[0026] like Figure 1 and Figure 3 As shown, the folding assembly includes folding rod I 18 and folding rod II 21. Folding rod I 18 is fixed to L-shaped support block 19 by pad 22. L-shaped support block 19 is fixed to one side of the medicine box conveyor belt 12. A shaping rod 20 is fixed to the left side of folding rod I 18. Folding rod I 18 is an L-shaped rod.

[0027] Folding rod I 18 is fixed on L-shaped support block 19 by pad block 22, so that there is a certain distance between folding rod I 18 and conveyor belt 12 of medicine box 14 to allow the tongue of medicine box 14 to pass through; folding rod I 18 and folding rod II 21 respectively fold the dustproof wings on both sides of medicine box 14; shaping rod 20 fixes the medicine box 14 with the dustproof wings on both sides folded, so that the steel characters can be accurately imprinted on the tongue of medicine box 14 in the next step of steel character imprinting.

[0028] As a preferred embodiment of the present invention, one end of the folding rod II 21 is connected to the transmission rod 23, and the other end of the folding rod II 21 is curved in an arc shape; the L-shaped support block 19 has a through hole (not shown in the figure, the rest are the same), and the L-shaped support block 19 is provided with a bearing seat 27 at the position corresponding to the through hole. The transmission rod 23 passes through the through hole and is rotatably connected to the bearing seat 27.

[0029] Folding rod II 21 rotates via transmission rod 23 to fold the dustproof wing on the side of the medicine box 14 away from folding rod I 18; transmission rod 23 is driven by the cartoning machine's drive system.

[0030] The above description is merely a preferred embodiment of this utility model. However, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, are all covered within the protection scope of this utility model.

Claims

1. A box filling machine auxiliary bag blowing into box mechanism, comprising a conveying assembly, a folding assembly, a blowing assembly is arranged between the conveying assembly and the folding assembly, characterized in that, The blowing assembly comprises a support (1), a connecting frame (2) movably connected to the support (1), a convex blowing nozzle frame (4) connected to the connecting frame (2), a hollow adjusting screw (5) movably connected to the convex blowing nozzle frame (4), a blowing nozzle (6) threadedly connected to one end of the hollow adjusting screw (5), and a trachea connected to the other end of the hollow adjusting screw (5) through a trachea joint (7), wherein the trachea is in communication with a throttle valve (8) and an electromagnetic valve (9) in sequence.

2. The bag-on-box machine auxiliary bag blowing and box entering mechanism according to claim 1, characterized in that, A square through hole (3) is arranged in the middle of the support (1), the connecting frame (2) and the convex blowing nozzle frame (4) are connected to the support (1) through bolts (24), and the bolts (24) pass through the square through hole (3).

3. The bag-on-box machine auxiliary bag blowing and box entering mechanism according to claim 2, characterized in that, The convex blowing nozzle frame (4) is provided with a threaded hole (4-1), the hollow adjusting screw (5) passes through the threaded hole (4-1), and the internal thread of the threaded hole (4-1) corresponds to the thread on the surface of the hollow adjusting screw (5).

4. The box packing machine auxiliary bag blowing and box entering mechanism according to claim 3, characterized in that, The trachea joint (7) is an elbow trachea joint, the electromagnetic valve (9) is provided with an air inlet (11) and an air outlet (10), and the trachea is in communication with the air outlet (10).

5. The bag-on-box machine auxiliary bag blowing and boxing mechanism as claimed in claim 1, characterized in that, The conveying assembly comprises a medicine box conveying belt (12) and a medicine bag conveying belt (15), the medicine box conveying belt (12) and the medicine bag conveying belt (15) are connected through a connecting block (25), the connecting block (25) is provided with a medicine bag conveying channel (26), and the support (1) is fixedly connected to the connecting block (25).

6. A boxer auxiliary bag blowing into box mechanism according to claim 5, characterized in that, The medicine bag conveying belt (15) is provided with a partition plate (16), and the medicine box conveying belt (12) is provided with a medicine box fixing block (13).

7. A boxer auxiliary bag blowing into box mechanism according to claim 6, characterized in that, The folding assembly comprises a folding rod I (18) and a folding rod II (21), the folding rod I (18) is fixed to an L-shaped supporting block (19) through a cushion block (22), the L-shaped supporting block (19) is fixed to one side of the medicine box conveying belt (12), the folding rod I (18) is fixed with a shaping rod (20) on the left side, and the folding rod I (18) is an L-shaped rod.

8. The box packing machine auxiliary bag blowing and box entering mechanism according to claim 7, characterized in that, One end of the folding rod II (21) is connected with a transmission rod (23), the other end of the folding rod II (21) is arc-shaped, the L-shaped supporting block (19) is provided with a through hole and a bearing seat (27) at a position corresponding to the through hole, and the transmission rod (23) passes through the through hole and is rotatably connected to the inside of the bearing seat (27).