Full-automatic powder dispensing and nitrogen sealing device for multi-cavity bag products

Abstract

The utility model relates to powder medicine sterile split charging equipment, concretely is a kind of full-automatic powder split charging and nitrogen filling sealing device of multi-cavity bag product, including split charging station and nitrogen filling sealing station, split charging station is provided with injection mechanism, first bag opening mechanism and weighing detection mechanism, injection mechanism fixedly set in aseptic window top, injection mechanism includes injection tube, the automatic weighing detection mechanism includes front and rear moving cylinder, up and down moving cylinder and positioning cylinder, the front and rear moving cylinder fixedly set in aseptic window, up and down moving cylinder fixedly set in the output end of front and rear moving cylinder, positioning cylinder fixedly set in the output end of up and down moving cylinder, the output end of positioning cylinder is connected with weighing spoon, aseptic window is fixedly provided with weighing table, weighing mechanism is provided on weighing table, glove interface is set up on aseptic window. The above structure can be carried out sampling, weighing detection in aseptic window, avoid the pollution problem caused by human operation factor.

Description

Technical Field

[0001] This utility model relates to aseptic packaging equipment for powdered medicines, specifically a fully automatic powder packaging and nitrogen-filling sealing device for multi-chamber bag products. Background Technology

[0002] Multi-chamber bag products are suitable for powdered medicines. In the aseptic packaging production line of multi-chamber bag products, the synchronous belt continuously conveys the packaging bags in the aseptic window, so that the packaging bags pass through the packaging, sealing and other stations in sequence.

[0003] At the dispensing station, the upper inlet tube injects a measured amount of drug powder into the bag. At this station, testing personnel need to periodically sample the amount of drug dispensed from the inlet tube and then perform random weight checks. Currently, most methods involve sampling inside the sterile window and then transferring the sample to the outside for weighing, leading to sample waste and increasing the risk of cross-contamination between environments of different cleanliness levels due to frequent tool transfers. Therefore, it is necessary to develop a sampling and weighing structure integrated inside the sterile window to achieve in-situ testing, ensure the integrity of the sterile environment, and reduce waste.

[0004] In addition, most of them use PE, PP, PET and other packaging bags. These packaging materials are relatively soft, and their dispensing and sealing operations require specialized automated structures to achieve precise positioning and sealing. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a fully automatic powder dispensing and nitrogen filling and sealing device for multi-chamber bag products.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An automated powder dispensing and nitrogen-filling sealing device for multi-chamber bag products is installed inside a sterile window. It includes a dispensing station and a nitrogen-filling sealing station. The dispensing station is equipped with an injection mechanism, a first bag-opening mechanism, and a weighing and detection mechanism. The injection mechanism is fixedly installed at the top of the sterile window and includes an injection tube. The automated weighing and detection mechanism includes a front-to-back moving cylinder, a vertical moving cylinder, and a positioning cylinder. The front-to-back moving cylinder is fixedly installed inside the sterile window, the vertical moving cylinder is fixedly installed at the output end of the front-to-back moving cylinder, and the positioning cylinder is fixedly installed at the output end of the vertical moving cylinder. A weighing scoop is connected to the output end of the positioning cylinder. A weighing platform is fixedly installed inside the sterile window, and a weighing mechanism is installed on the weighing platform. A glove interface is provided on the sterile window corresponding to the position of the weighing platform, and an operating glove is connected to the glove interface.

[0007] The above structure enables sampling and weighing within a sterile window, avoiding contamination issues caused by human error.

[0008] The first bag-opening mechanism includes two opposing bag-opening moving cylinders. The output end of each bag-opening moving cylinder is connected to a first vacuum suction cup. The two first vacuum suction cups are positioned opposite each other and distributed on both sides of the filling tube. When the two first vacuum suction cups simultaneously draw a vacuum, they can suck up the two side walls of the packaging bag. Then, the two bag-opening moving cylinders move in opposite directions, thereby opening the top of the packaging bag.

[0009] A synchronous belt is installed inside the sterile window, and several bag-hanging brackets are mounted on the synchronous belt. Each bag-hanging bracket is equipped with a bag-hanging pin. The packaging bag has pre-drilled holes for engaging with the bag-hanging pins, thus attaching the packaging bag to the bag-hanging bracket. This allows the packaging bag to move with the synchronous belt, which runs through the entire production line, thereby achieving automated processing.

[0010] The nitrogen filling and sealing station includes a second bag opening mechanism, a nitrogen filling mechanism, and a sealing mechanism. The nitrogen filling mechanism includes a nitrogen filling pipeline and a nitrogen filling up and down moving cylinder. The nitrogen filling up and down moving cylinder is fixedly installed at the top inside the sterile window. The output end of the nitrogen filling up and down moving cylinder is connected to the nitrogen filling pipeline, and the nitrogen filling pipeline is connected to a nitrogen source.

[0011] The second bag-opening mechanism includes a bag-opening vertical movement cylinder. The output end of the bag-opening vertical movement cylinder is connected to the bag-opening cylinder. The lower part of the bag-opening cylinder is connected to two second vacuum suction cups, and the air passages of the two second vacuum suction cups are connected to the air passages of the bag-opening cylinder. When the bag-opening cylinder pumps air, it can create negative pressure in the two second vacuum suction cups, thereby facilitating the suction of the two side walls of the packaging bag and opening the upper opening of the packaging bag.

[0012] The sealing mechanism includes two heat-sealing cylinders, the output ends of which are respectively connected to heating molds, and the two heating molds are arranged opposite to each other. The two heating molds are used to close the upper opening of the packaging bag and perform heat sealing.

[0013] The heating mold is equipped with a heating rod.

[0014] The two heat-sealing cylinders are fixedly installed inside the sterile window, and a pull rod is connected between the two heat-sealing cylinders. The pull rod limits the movement of the two heat-sealing cylinders to prevent them from moving backward.

[0015] The beneficial effects achieved by this utility model are: This invention enables automatic dispensing and nitrogen sealing of powdered medicines. It has wide product adaptability, high production efficiency, saves materials, and reduces the number of operators and labor intensity.

[0016] This utility model's dispensing station can automatically sample and weigh powdered medicines independently. Specifically, by simply clicking the "Sampling" button on the touchscreen, the front-end packaging robot's bag-loading device will automatically vacate a set of hanging pins. Then, it will automatically synchronize with multiple stations to the dispensing station. At this time, the forward and backward moving cylinders move forward, the up and down moving cylinders move up, and the positioning cylinder drives the weighing spoon to automatically position itself at the bottom of the injection tube for powdering. After powdering, all devices will automatically reset in sequence. The operator can then remove the weighing spoon through the operating gloves at the glove interface and place it on the weighing mechanism of the weighing platform. Because the sterile window is made of transparent material, the weighing data can be read externally and fed back to the operating system, realizing the sampling and weighing of powdered medicines. The entire process is operated in a sterile environment, greatly avoiding contamination of the production line.

[0017] The nitrogen filling and sealing station of this invention can realize quantitative nitrogen filling and sealing in a sterile environment with a high degree of automation. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model (top view cutaway view); Figure 2 This is a structural schematic diagram of the disassembly station of this utility model. Figure 1 (Left-side view) Figure 3 yes Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the structure of the nitrogen-filling sealing station of this utility model. Figure 1 (Right-side view) Figure 5 yes Figure 4 Enlarged view of the structure at point B.

[0019] In the diagram: 1. Sterile window; 2. Weighing platform; 3. Weighing mechanism; 4. Synchronous belt; 5. Bag hanging pin; 6. Bag opening moving cylinder; 7. Heat sealing cylinder; 8. Injection pipe; 9. Packaging bag; 10. Weighing spoon; 11. Positioning cylinder; 12. Glove interface; 13. Operating gloves; 14. Up and down moving cylinder; 15. Back and forth moving cylinder; 16. First vacuum suction cup; 17. Bag hanging bracket; 18. Bag opening up and down moving cylinder; 19. Nitrogen filling up and down moving cylinder; 20. Pull rod; 21. Bag opening cylinder; 22. Heating mold; 23. Nitrogen filling pipeline; 24. Second vacuum suction cup. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: like Figures 1-5 As shown, a fully automated powder dispensing and nitrogen-filling sealing device for multi-chamber bag products is installed inside a sterile window 1, which has a long, continuous structure to form a sterile production line. This invention includes a dispensing station and a nitrogen-filling sealing station. The production line also includes other robotic bag-loading devices and unloading mechanisms, which are not specifically described in this invention.

[0022] The dispensing station is equipped with an injection mechanism, a first bag-opening mechanism, and a weighing and detection mechanism. The injection mechanism is fixedly installed at the top inside the sterile window 1. The injection mechanism includes an injection tube 8, and a cylinder is connected to the top of the injection tube 8 to drive the injection tube 8 to move up and down. The injection mechanism can dispense a quantitative amount of material, which can be achieved using existing technology. The automatic weighing and detection mechanism includes a front-to-back moving cylinder 15, a vertical moving cylinder 14, and a positioning cylinder 11. The front-to-back moving cylinder 15 is fixedly installed inside the sterile window 1. The front-to-back moving cylinder 15 is a rodless cylinder with magnetic coupling, and its output end is a long-stroke slide. The vertical moving cylinder 14 is fixedly installed at the output end of the front-to-back moving cylinder 15. The positioning cylinder 11 is fixedly installed at the output end of the vertical moving cylinder 14. The output end of the positioning cylinder 11 is connected to a weighing spoon 10. The output end of the positioning cylinder 11 moves horizontally, which can drive the weighing spoon 10 to move accurately to the lower part of the injection tube 8. The output end of the positioning cylinder 11 is connected to a bracket, and a platform is set on the upper part of the bracket. The weighing spoon 10 is placed on the platform. In order to ensure the stability of the weighing spoon 10, multiple limit rods can be set on the platform. The limit rods are set on the outside of the weighing spoon 10 to limit its movement.

[0023] A weighing platform 2 is fixedly installed inside the sterile window 1. After the weighing spoon 10 receives the powdered medicine, it returns to the vicinity of the weighing platform 2. A weighing mechanism 3 is installed on the weighing platform 2. The weighing mechanism 3 can be an existing electronic scale. A glove interface 12 is opened on the sterile window 1 corresponding to the position of the weighing platform 2. An operating glove 13 is connected to the glove interface 12. The operating glove 13 is sealed to avoid contamination by the outside air.

[0024] The first bag-opening mechanism includes two opposing bag-opening moving cylinders 6. The output ends of each bag-opening moving cylinder 6 are connected to a first vacuum suction cup 16, which is connected to an air passage. The two first vacuum suction cups 16 are positioned opposite each other, distributed on both sides of the filling tube 8. The two bag-opening moving cylinders 6 move towards each other, bringing the two first vacuum suction cups 16 close to the two side walls of the packaging bag 9. Then, a vacuum is simultaneously drawn, sucking up the two side walls of the packaging bag 9. The two bag-opening moving cylinders 6 then move in opposite directions, opening the top of the packaging bag 9. After the filling tube 8 moves down and inserts into the upper opening of the packaging bag 9 to inject material, it moves upward. The two bag-opening moving cylinders 6 then move towards each other again, closing the top of the packaging bag 9, followed by nitrogen-filled sealing packaging.

[0025] A synchronous belt 4 is installed inside the sterile window 1, and the synchronous belt 4 moves in an intermittent synchronous stepping manner. Several bag-hanging brackets 17 are installed on the synchronous belt 4, and each bag-hanging bracket 17 is equipped with a bag-hanging pin 5. The packaging bag 9 has pre-drilled holes for engaging with the bag-hanging pins 5, thereby hooking the packaging bag 9 onto the bag-hanging bracket 17. This allows the packaging bag 9 to move with the synchronous belt 4, which runs throughout the entire production line, thus achieving automated processing.

[0026] like Figure 4 , Figure 5 As shown, the nitrogen filling and sealing station includes a second bag opening mechanism, a nitrogen filling mechanism, and a sealing mechanism. The nitrogen filling mechanism includes a nitrogen filling pipeline 23 and a nitrogen filling up and down moving cylinder 19. The nitrogen filling up and down moving cylinder 19 is fixedly installed at the top inside the sterile window 1. The output end of the nitrogen filling up and down moving cylinder 19 is connected to the nitrogen filling pipeline 23, and the nitrogen filling pipeline 23 is connected to a nitrogen source.

[0027] The second bag-opening mechanism includes a bag-opening up-and-down moving cylinder 18. The output end of the bag-opening up-and-down moving cylinder 18 is connected to a bag-opening cylinder 21. The lower part of the bag-opening cylinder 21 is connected to two second vacuum suction cups 24, and the air passages of the two second vacuum suction cups 24 are connected to the air passages of the bag-opening cylinder 21. When the bag-opening cylinder 21 evacuates the air passages, it can generate negative pressure in the two second vacuum suction cups 24, thereby facilitating the suction of the two side walls of the packaging bag 9 and opening the upper opening of the packaging bag 9.

[0028] The sealing mechanism includes two heat-sealing cylinders 7, the output ends of which are respectively connected to heating molds 22, and the two heating molds 22 are arranged opposite to each other. The two heating molds 22 are used to close the upper opening of the packaging bag 9 and perform heat sealing. Heating rods are provided inside the heating molds 22.

[0029] The two heat-sealing cylinders 7 are fixedly installed inside the sterile window 1, and a pull rod 20 is connected between the two heat-sealing cylinders 7. The pull rod 20 limits the two heat-sealing cylinders 7 to prevent them from moving backward.

[0030] The specific nitrogen filling and sealing process is as follows: the second vacuum suction cup 24 generates negative pressure through the suction of the bag opening cylinder 21, which sucks open the two closed sides of the packaging bag 9, preparing for the insertion of the nitrogen filling pipeline 23 in the next step. By moving the nitrogen filling cylinder 19 downward, the nitrogen filling pipeline 23 is inserted into the packaging bag 9. At the same time, the bag opening cylinder 21 controls the second vacuum suction cup 24 to close the opening of the packaging bag 9. At this time, nitrogen is precisely filled through the flow meter. After the preset time is completed, the nitrogen pipeline moves upward and is lifted, and the sealing mechanism intervenes. Based on the pre-set heating temperature and welding time, the heat sealing cylinder 7 moves left and right and closes in the middle at the moment the nitrogen pipeline is lifted to complete the welding.

Claims

1. A fully automated powder dispensing and nitrogen-filling sealing device for multi-chamber bag products, characterized in that, The automatic weighing and detection mechanism is set inside the sterile window (1), including a dispensing station and a nitrogen-filling and sealing station. The dispensing station is equipped with an injection mechanism, a first bag-opening mechanism, and a weighing and detection mechanism. The injection mechanism is fixedly set at the top inside the sterile window (1) and includes an injection tube (8). The automatic weighing and detection mechanism includes a front-to-back moving cylinder (15), an up-and-down moving cylinder (14), and a positioning cylinder (11). The front-to-back moving cylinder (15) is fixedly set inside the sterile window (1), and the up-and-down moving cylinder (14) is fixedly set inside the sterile window (1). The output end of the front and rear moving cylinder (15) is fixedly set, the positioning cylinder (11) is fixedly set at the output end of the up and down moving cylinder (14), the output end of the positioning cylinder (11) is connected to the weighing spoon (10), the weighing platform (2) is fixedly set inside the sterile window (1), the weighing platform (2) is set with a weighing mechanism (3), the sterile window (1) corresponding to the position of the weighing platform (2) is provided with a glove interface (12), and the glove interface (12) is connected with an operating glove (13).

2. The fully automatic powder dispensing and nitrogen-filling sealing device for multi-chamber bag products according to claim 1, characterized in that, The first bag opening mechanism includes two bag opening moving cylinders (6) arranged opposite to each other. The output end of each bag opening moving cylinder (6) is connected to a first vacuum suction cup (16). The two first vacuum suction cups (16) are arranged opposite to each other and are distributed on both sides of the injection tube (8).

3. The fully automatic powder dispensing and nitrogen-filling sealing device for multi-chamber bag products according to claim 1, characterized in that, The sterile window (1) is provided with a synchronous belt (4), and several bag hanging brackets (17) are installed on the synchronous belt (4). The bag hanging brackets (17) are provided with bag hanging pins (5).

4. The fully automatic powder dispensing and nitrogen-filling sealing device for multi-chamber bag products according to claim 1, characterized in that, The nitrogen filling and sealing station includes a second bag opening mechanism, a nitrogen filling mechanism, and a sealing mechanism. The nitrogen filling mechanism includes a nitrogen filling pipeline (23) and a nitrogen filling up and down moving cylinder (19). The nitrogen filling up and down moving cylinder (19) is fixedly installed at the top inside the sterile window (1). The output end of the nitrogen filling up and down moving cylinder (19) is connected to the nitrogen filling pipeline (23).

5. The fully automatic powder dispensing and nitrogen-filling sealing device for multi-chamber bag products according to claim 4, characterized in that, The second bag opening mechanism includes a bag opening up and down moving cylinder (18), the output end of the bag opening up and down moving cylinder (18) is connected to the bag opening cylinder (21), the lower part of the bag opening cylinder (21) is connected to two second vacuum suction cups (24), and the air passages of the two second vacuum suction cups (24) are connected to the air passages of the bag opening cylinder (21).

6. The fully automatic powder dispensing and nitrogen-filling sealing device for multi-chamber bag products according to claim 4, characterized in that, The sealing mechanism includes two heat-sealing cylinders (7), the output ends of which are respectively connected to heating molds (22), and the two heating molds (22) are arranged opposite to each other.

7. The fully automatic powder dispensing and nitrogen-filling sealing device for multi-chamber bag products according to claim 6, characterized in that, A heating rod is provided inside the heating mold (22).

8. The fully automatic powder dispensing and nitrogen-filling sealing device for multi-chamber bag products according to claim 6, characterized in that, The two heat-sealing cylinders (7) are fixedly installed inside the sterile window (1), and a pull rod (20) is connected between the two heat-sealing cylinders (7).

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