Servo double-outlet bag feeding and taking device
By using a servo motor-driven bag-grabbing device, combined with a photoelectric detection system and a guiding structure, the problem of insufficient precision in existing bag-grabbing devices has been solved, achieving high-speed and high-precision bag grabbing, reducing bag waste and production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HUACHENG PACKING MASCH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-21
AI Technical Summary
Existing bag-picking devices have limited precision in controlling the movement of cylinders, making it difficult to accurately control the position and speed of bag picking. This results in large picking errors, which can easily lead to bag picking failures or damage to the packaging bags. They cannot meet the requirements of the modern packaging industry for high-speed and high-precision production. The lack of a precise guidance and positioning system increases packaging bag waste and production costs.
The bag-grabbing device, driven by a servo motor, works in conjunction with components such as the bag-grabbing swing arm, bag-grabbing connecting rod, suction bag bracket, flipping guide block, and L-shaped guide groove to achieve motion transmission and angle adjustment of the suction bag bracket. Combined with a photoelectric detection system, it precisely controls the bag-grabbing position and timing to ensure that the suction cup accurately grasps the packaging bag, and adjusts the gripping stroke and timing according to the host parameters.
It enables high-speed, continuous bag-picking operations, improves packaging production efficiency, reduces bag-picking errors and packaging bag waste, enhances the stability and adaptability of the device, and meets the high-precision production needs of the modern packaging industry.
Smart Images

Figure CN224146362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bag-retrieving devices, and in particular to a servo-driven dual-output upper bag-retrieving device. Background Technology
[0002] In the operation of a horizontal fully automatic packaging machine, the bag-picking process is crucial, directly impacting packaging efficiency and quality. As a key initial component of the packaging process, the servo-driven dual-output bag-picking device must accurately and efficiently remove the packaging bags from the box and transfer them to the subsequent workstation. This device is typically installed inside the packaging machine at the bag-picking station, operating in conjunction with other packaging equipment. The working environment may involve mechanical vibrations and packaging material debris, requiring the device to possess stable and reliable performance to adapt to the continuous and high-speed packaging production pace. Currently, in the packaging industry, bag-picking devices typically rely on the following technologies to achieve their bag-picking function:
[0003] 1. Power drive technology: It is necessary to have a power source that can precisely control the movement to ensure that the speed, position and time of the bag picking action are accurate and in line with the overall production rhythm of the packaging machine.
[0004] 2. Guiding and positioning technology: Through a specific guiding structure, the bag-grabbing component can accurately reach the bag box position, realizing precise gripping of the packaging bag and reducing bag-grabbing errors.
[0005] 3. Detection and feedback technology: Various sensors are used to detect key information during the bag retrieval process, such as the bag retrieval position and whether the packaging bag exists, and this information is fed back to the control system so that the bag retrieval action can be adjusted in a timely manner.
[0006] 4. Structural stability technology: The overall structure of the device must be stable and able to withstand various forces during the bag removal process, ensuring normal operation in long-term, high-intensity working environments and avoiding the impact of bag removal effect due to structural loosening.
[0007] 5. Adaptive adjustment technology: It can make appropriate adjustments to the relevant parameters or structure of the bag picking device according to different packaging bag specifications to meet diverse packaging needs.
[0008] Currently, there are various types of bag-grabbing devices on the market. Some traditional bag-grabbing devices use simple mechanical structures, such as using a cylinder to drive the bag-grabbing component to move linearly to grab the packaging bag. This method has a relatively simple structure.
[0009] However, these bag-picking devices have a prominent problem: the precision of the cylinder motion control is limited, making it difficult to accurately control the bag picking position and speed. This results in large bag picking errors, which can easily lead to bag picking failures or damage to the packaging bags. The insufficient bag picking precision cannot meet the requirements of the modern packaging industry for high-speed and high-precision production. The lack of a precise guidance and positioning system also increases bag picking errors, leading to increased waste of packaging bags and higher production costs. Utility Model Content
[0010] To address the shortcomings of existing technologies, this utility model provides a servo dual-output bag-picking device. It solves the problems of limited motion control precision of cylinders, making it difficult to accurately control the bag picking position and speed, resulting in large bag picking errors, bag picking failures or damage to packaging bags, insufficient bag picking precision, inability to meet the requirements of high-speed and high-precision production in the modern packaging industry, lack of precise guidance and positioning systems, and frequent bag picking errors that increase packaging bag waste and production costs.
[0011] To achieve the above objectives, this utility model provides the following technical solution:
[0012] A servo dual-output bag-retrieving device includes a mounting base plate. A slider support is slidably connected to the outer surface of the mounting base plate. A bag-suction bracket is rotatably connected inside the slider support. A guide rail side plate is provided on the outer surface of the mounting base plate. An L-shaped guide groove is opened inside the guide rail side plate. A flipping guide block is fixedly connected to the outer surface of the bag-suction bracket. The flipping guide block is disposed inside the L-shaped guide groove. Two suction cup brackets are provided inside the bag-suction bracket. Each of the two suction cup brackets is provided with a set of suction cup bodies.
[0013] Preferably, a motor base is provided on the outer surface of the mounting base plate, and a bag-retrieving swing rod is rotatably connected inside the motor base.
[0014] Preferably, a servo motor is fixedly connected to the outer surface of the motor base, and the bag-picking swing arm is disposed on the outer surface of the servo motor.
[0015] Preferably, the bag-retrieving swing arm is rotatably connected to a bag-retrieving connecting rod, and the bag-retrieving connecting rod is rotatably connected to the outer surface of the slider support.
[0016] Preferably, a fixed bracket is provided on the outer surface of the mounting base away from the motor base, and a bag box placement mechanism is provided inside the fixed bracket.
[0017] Preferably, a photoelectric bracket is provided at one end of the outer surface of the motor base near the guide rail side plate, and two proximity switches are fixedly connected inside the photoelectric bracket.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] The bag-picking swing arm, bag-picking connecting rod, bag-suction bracket, flipping guide block, and L-shaped guide groove work together to realize the motion transmission and angle adjustment of the bag-suction bracket, ensuring that the suction cup body can accurately reach the bag-picking position and grab the packaging bag. The servo motor drives the bag-suction bracket to rise quickly and accurately to the bag box position to grab the packaging bag, and can adjust the gripping stroke and timing according to the parameters on the host screen. It works closely with the subsequent workstations such as the lower carriage mechanism of the packaging machine to achieve high-speed and continuous bag picking operation and improve packaging production efficiency.
[0020] 2. The photoelectric bracket and proximity switch are used to detect the position of the suction cup bracket and the presence or absence of the packaging bag. This information is fed back to the host control system. Based on the feedback, the host adjusts the operating parameters of the servo motor, such as speed, rotation angle, and start / stop time, to precisely control the gripping stroke and timing of the suction cup bracket. This ensures that the suction cup bracket can accurately reach the bag-grabbing position each time, and the suction cup body is flush with the bag box to grip the packaging bag, improving the accuracy of bag retrieval and reducing bag retrieval errors and waste of packaging bags. Attached Figure Description
[0021] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a diagram showing the connection structure of the servo motor of this utility model;
[0024] Figure 3 This is an exploded view of the suction cup bracket connection of this utility model;
[0025] Figure 4 This is a connection structure diagram of the bag and box placement mechanism of this utility model.
[0026] Legend: 11. Mounting base plate; 12. Slider support; 13. Suction bag bracket; 14. Guide rail side plate; 15. L-shaped guide groove; 16. Flipping guide block; 17. Suction cup bracket; 18. Suction cup body; 19. Motor base; 21. Bag retrieval lever; 22. Servo motor; 23. Bag retrieval connecting rod; 24. Fixed bracket; 25. Bag box placement mechanism; 26. Photoelectric bracket; 27. Proximity switch. Detailed Implementation
[0027] This application provides a servo-driven dual-output bag-grabbing device, which effectively solves the problems of limited motion control precision of cylinders, making it difficult to accurately control the bag-grabbing position and speed, resulting in large bag-grabbing errors, bag-grabbing failures, or damage to packaging bags. Insufficient bag-grabbing precision fails to meet the requirements of high-speed, high-precision production in the modern packaging industry. The lack of a precise guidance and positioning system also leads to frequent bag-grabbing errors, increasing packaging bag waste and production costs. The device utilizes components such as a bag-grabbing swing arm, bag-grabbing connecting rod, bag-grabbing bracket, flipping guide block, and L-shaped guide groove to work together to achieve motion transmission and angle adjustment of the bag-grabbing bracket. This ensures that the suction cup body accurately reaches the bag-grabbing position and grasps the packaging bag. The servo motor drives the bag-grabbing bracket to quickly and accurately rise to the bag box position to grasp the packaging bag. The device can also adjust the grasping stroke and timing according to parameters on the host screen. It works closely with subsequent workstations such as the packaging machine's lower carriage mechanism to achieve high-speed, continuous bag-grabbing operations, improving packaging production efficiency.
[0028] Example
[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in this application embodiment effectively solves the technical problems of limited motion control precision of cylinders, making it difficult to accurately control the position and speed of bag picking, resulting in large bag picking errors, easy bag picking failure or damage to packaging bags, insufficient bag picking precision, inability to meet the requirements of high-speed and high-precision production in the modern packaging industry, lack of precise guidance and positioning system, and frequent bag picking errors increasing packaging bag waste and production costs. The overall idea is as follows: A servo dual-output upper bag picking device includes a mounting base plate 11, a slider support 12 slidably connected to the outer surface of the mounting base plate 11, a suction bag bracket 13 rotatably connected inside the slider support 12, and a guide rail side plate 14 provided on the outer surface of the mounting base plate 11. An L-shaped guide groove 15 is provided. A flipping guide block 16 is fixedly connected to the outer surface of the suction bag bracket 13. The flipping guide block 16 is located inside the L-shaped guide groove 15. Two suction cup brackets 17 are provided inside the suction bag bracket 13. Each suction cup bracket 17 has a set of suction cup bodies 18 inside. A motor base 19 is provided on the outer surface of the mounting base plate 11. A bag-picking swing rod 21 is rotatably connected inside the motor base 19. A servo motor 22 is fixedly connected to the outer surface of the motor base 19. The bag-picking swing rod 21 is located on the outer surface of the servo motor 22. A bag-picking connecting rod 23 is rotatably connected inside the bag-picking swing rod 21. The bag-picking connecting rod 23 is rotatably connected to the outer surface of the slider support 12. The servo motor 22 serves as a power source and is mounted on the motor base 19. When the servo motor 22 is started, the servo motor... The output shaft of the service motor 22 drives the bag-picking swing arm 21 mounted on its surface to rotate. When the bag-picking swing arm 21 rotates, it lifts the slider support 12 through the bag-picking connecting rod 23 rotatably connected to its surface. The slider support 12 slides on the slide rail mounted on the surface of the mounting base plate 11. Since the flipping guide block 16 mounted on the surface of the suction bag bracket 13 is sleeved in the L-shaped guide groove 15, the flipping guide block 16 is limited by the L-shaped guide groove 15, so that the flipping guide block 16 can only move along the inner wall of the L-shaped guide groove 15. During the sliding process of the slider support 12, it will flip due to the limitation of the L-shaped guide groove 15 and the flipping guide block 16. The suction bag bracket 13 drives the two suction cup brackets 17 to flip, so that the two sets of suction cup bodies 18 face upward to perform suction work. The suction bag bracket 13 flips and rises. The suction cup 18 is raised to the fixed bracket 24 and flattened against the bag box. The suction cup body 18 generates suction to grab the packaging bag. The bag-grabbing swing rod 21, bag-grabbing connecting rod 23, suction bag bracket 13, flipping guide block 16 and L-shaped guide groove 15 cooperate with each other to realize the motion transmission and angle adjustment of the suction bag bracket 13. This ensures that the suction cup body 18 can accurately reach the bag-grabbing position and grab the packaging bag. The servo motor 22 drives the suction bag bracket 13 to rise quickly and accurately to the bag box position to grab the packaging bag. It can also adjust the grabbing stroke and timing according to the parameters on the host screen. It works closely with the subsequent workstations such as the lower carriage mechanism of the packaging machine to realize high-speed and continuous bag-grabbing operation and improve packaging production efficiency. The two suction cup brackets 17 are installed and fixed on the suction bag bracket 13 by screwing on bolts.
[0030] A fixed bracket 24 is provided at the end of the outer surface of the mounting base plate 11 away from the motor base 19. The fixed bracket 24 is equipped with a bag box placement mechanism 25. The bag box placement mechanism 25 is composed of a bag box side plate, an adjusting guide shaft, a bag box support, a bag box tray, a bag box baffle, a photoelectric support, etc. The fixed bracket 24 can be freely adjusted by the waist-shaped groove opened inside it. The bag picking station installed in the equipment can adapt to packaging bags of different specifications and sizes, which enhances the versatility of the device in diversified packaging production and reduces the cost and time of replacing the bag picking device due to changes in packaging bag specifications.
[0031] A photoelectric bracket 26 is installed on one end of the outer surface of the motor base 19 near the guide rail side plate 14. Two proximity switches 27 are fixedly connected inside the photoelectric bracket 26. The photoelectric bracket 26 and the proximity switches 27 are used to detect information such as the position of the suction bag bracket 13 and the presence or absence of the packaging bag. This information is fed back to the host control system. Based on the feedback information, the host adjusts the operating parameters of the servo motor 22, such as speed, rotation angle, start and stop time, to precisely control the gripping stroke and timing of the suction bag bracket 13. This ensures that the suction bag bracket 13 can accurately reach the bag picking position every time. The suction cup body 18 is flush with the bag box to grip the packaging bag, improving the accuracy of bag picking, reducing bag picking errors and waste of packaging bags. At the same time, the mounting base plate 11, guide rail side plate 14, motor base 19, fixed bracket 24 and photoelectric bracket 26 are installed by bolts to provide the mounting foundation and support for each component, ensuring the stability of the device structure.
[0032] To address the problems existing in the prior art, this utility model provides a servo dual-output bag-picking device. The bag-picking swing arm 21, bag-picking connecting rod 23, bag-suction bracket 13, flipping guide block 16, and L-shaped guide groove 15 work together to achieve motion transmission and angle adjustment of the bag-suction bracket 13, ensuring that the suction cup body 18 can accurately reach the bag-picking position and grab the packaging bag. The servo motor 22 drives the bag-suction bracket 13 to quickly and accurately rise to the bag box position to grab the packaging bag. It can also adjust the grabbing stroke and timing according to the parameters on the host screen, closely cooperating with subsequent workstations such as the packaging machine's lower carriage mechanism to achieve high-speed, continuous bag-picking operation and improve packaging production efficiency.
[0033] Working principle:
[0034] The first step involves the bag-box placement mechanism 25, which consists of a bag-box side plate, an adjusting guide shaft, a bag-box support, a bag-box tray, a bag-box baffle, and a photoelectric support. The fixed bracket 24, with its internal slot, is freely adjustable. Installed at the bag-picking station within the equipment, it can accommodate packaging bags of different sizes, enhancing the device's versatility in diverse packaging production and reducing the cost and time of replacing the bag-picking device due to changes in packaging bag specifications. The servo motor 22, serving as the power source, is mounted on the motor base 19. Starting the servo... The output shaft of motor 22, a servo motor 22, drives the bag-picking lever 21 mounted on its surface to rotate. When the lever 21 rotates, it lifts the slider support 12 via the bag-picking connecting rod 23, which is rotatably connected to its surface. The slider support 12 slides on the slide rail mounted on the mounting base plate 11. Since the flipping guide block 16 mounted on the surface of the suction bag bracket 13 is fitted into the L-shaped guide groove 15, the L-shaped guide groove 15 limits the movement of the flipping guide block 16, ensuring that it can only move along the inner wall of the L-shaped guide groove 15. During the sliding process, the slider support 12 will be flipped by the limiting of the L-shaped guide groove 15 and the flipping guide block 16. The suction bag bracket 13 drives the two suction cup brackets 17 to flip so that the two sets of suction cup bodies 18 face upward to perform suction work. The suction bag bracket 13 flips and rises into the fixed bracket 24 and is flat with the bag box. The suction force generated by the suction cup body 18 grabs the packaging bag. The bag picking swing rod 21, bag picking connecting rod 23, suction bag bracket 13, flipping guide block 16 and L-shaped guide groove 15 and other components cooperate with each other to realize the motion transmission and angle adjustment of the suction bag bracket 13, ensuring that the suction cup body 18 can accurately reach the bag picking position and grab the packaging bag. The servo motor 22 drives the suction bag bracket 13 to rise quickly and accurately to the bag box position to grab the packaging bag, and can adjust the gripping stroke and timing according to the parameters on the host screen. It closely cooperates with the lower carriage mechanism and other subsequent work stations of the packaging machine to realize high-speed and continuous bag picking operation and improve packaging production efficiency. The two suction cup brackets 17 are installed and fixed on the suction bag bracket 13 by bolt screwing.
[0035] In the second step, the photoelectric bracket 26 and proximity switch 27 are used to detect the position of the suction bag bracket 13 and the presence or absence of packaging bags, and feed this information back to the host control system. Based on the feedback information, the host adjusts the operating parameters of the servo motor 22, such as speed, rotation angle, start and stop time, to precisely control the gripping stroke and timing of the suction bag bracket 13, ensuring that the suction bag bracket 13 can accurately reach the bag picking position every time. The suction cup body 18 is flush with the bag box to grip the packaging bag, improving the accuracy of bag picking, reducing bag picking errors and waste of packaging bags. At the same time, the mounting base plate 11, guide rail side plate 14, motor base 19, fixed bracket 24 and photoelectric bracket 26, etc., are installed with bolts to provide the mounting foundation and support for each component, ensuring the stability of the device structure.
[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A servo double-out bag taking device, comprising a mounting base plate (11), the outer surface of which is slidingly connected with a sliding block support (12), characterized in that, The slider support (12) is rotatably connected to a suction bag bracket (13). The outer surface of the mounting base plate (11) is provided with a guide rail side plate (14). The guide rail side plate (14) is provided with an L-shaped guide groove (15). The outer surface of the suction bag bracket (13) is fixedly connected with a flipping guide block (16). The flipping guide block (16) is located inside the L-shaped guide groove (15). The suction bag bracket (13) is provided with two suction cup brackets (17). Each of the two suction cup brackets (17) has a set of suction cup bodies (18) inside.
2. A servo dual outfeed bag picking device as claimed in claim 1, wherein, A motor base (19) is provided on the outer surface of the mounting base plate (11); The motor base (19) is rotatably connected to a bag-retrieving swing arm (21).
3. A servo dual outfeed bag picking device as claimed in claim 2, wherein, A servo motor (22) is fixedly connected to the outer surface of the motor base (19); The bag-picking swing arm (21) is located on the outer surface of the servo motor (22).
4. A servo dual outfeed bag picking device as claimed in claim 3, wherein, The bag-retrieving swing arm (21) is internally rotatably connected to a bag-retrieving connecting rod (23); The bag-taking connecting rod (23) is rotatably connected to the outer surface of the slider support (12).
5. A servo-driven dual-output bag-retrieving device as described in claim 4, characterized in that, A fixing bracket (24) is provided at one end of the outer surface of the mounting base plate (11) away from the motor base (19); The fixed bracket (24) is equipped with a bag and box placement mechanism (25).
6. A servo dual outfeed bag picking device as claimed in claim 5, wherein, A photoelectric bracket (26) is provided on one end of the outer surface of the motor base (19) near the guide rail side plate (14); The photoelectric bracket (26) has two proximity switches (27) fixedly connected inside.