Dual-suction cup type automatic opening device for packaging bag

Abstract

The utility model discloses a kind of double-suction disc type packaging bag automatic opening device, including feeding frame and support frame, the outside of the feeding frame is provided with support frame, the surface of the support frame is slidably provided with moving plate, the top of the support frame is provided with first adjusting cylinder, the output end of the first adjusting cylinder is installed with second push arm, and second push arm is connected with moving plate, the bottom of the moving plate is provided with support plate, the side wall of the moving plate is provided with first double-shaft cylinder, the both ends of the first double-shaft cylinder are provided with first push arm, the end of the first push arm away from first double-shaft cylinder is provided with adjusting arm. The utility model not only realizes two-way adsorption to open packaging bag and provides stable support to packaging bag when injecting material, facilitates flexible adjustment of the adsorption position of suction disc and adsorption opening to packaging bag of different sizes, and improve the flexibility of use.

Description

Technical Field

[0001] This utility model relates to the field of opening device technology, specifically to an automatic opening device for a double suction cup type packaging bag. Background Technology

[0002] Food packaging bags are a type of packaging design. In daily life, product packaging bags have emerged to facilitate the preservation and storage of food. For example, hot pot ingredients and condiments require packaging bags for convenient sales and transportation, creating a retail format and bringing convenience to people's lives. Based on the packaging method, the packaging bag needs to be opened before filling, thus requiring a packaging bag opening device. Since the packaging bag is made of two layers of plastic film, it needs to be opened. Current technology mostly relies on manual assembly, which is inefficient and costly. Furthermore, manual assembly is cumbersome, often requiring the use of water or other liquids to increase friction between the fingers and the bag to open it. After opening, the bag is manually stretched open before assembly, which is also tedious. To improve the opening of packaging bags, a double-suction cup automatic packaging bag opening device is proposed.

[0003] An automated device for opening product packaging bags, disclosed in authorization announcement number CN222808400U, includes a fixed frame, a lifting device, an opening limiting device, a suction device, a longitudinal adjustment device, and a lateral adjustment device. The longitudinal adjustment device is installed below the fixed frame, the lateral adjustment device is installed on the longitudinal adjustment device, the opening limiting device is connected to the lateral adjustment device, and the lifting device is installed on one side of the fixed frame, with the suction device connected to the lifting device.

[0004] Although it achieves the opening of the packaging bag by using the suction device in conjunction with the suction component on the conveying component located directly below the suction device, and the opening limiting device is placed inside the opening of the packaging bag by the longitudinal adjustment device, and the opening limiting device is opened by the lateral adjustment device, thereby opening the opening of the packaging bag and feeding the product into the packaging bag between the opening limiting devices, the bagging work can be realized. The structure is simple, practical and convenient, improving work efficiency while reducing work costs.

[0005] However, the existing opening device does not solve the problems of not being able to open the packaging bag in both directions during use, not being able to provide stable support for the packaging bag when injecting materials, not being able to flexibly adjust the suction position of the suction cup, and not being able to suction open packaging bags of different sizes, thus affecting the flexibility of use. Utility Model Content

[0006] The purpose of this invention is to provide a double suction cup type automatic opening device for packaging bags, in order to solve the problems mentioned in the background art, such as the opening device being inconvenient for bidirectional suction to open the packaging bag and providing stable support for the packaging bag when injecting materials, which is not conducive to flexibly adjusting the suction position of the suction cup and suction opening of packaging bags of different sizes, thus affecting the flexibility of use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double suction cup type automatic opening device for packaging bags, comprising a feeding rack and a support frame. The support frame is provided on the outside of the feeding rack. A movable plate is slidably provided on the surface of the support frame. A first adjusting cylinder is provided at the top of the support frame. A second push arm is installed at the output end of the first adjusting cylinder and is connected to the movable plate. A support plate is provided at the bottom of the movable plate. A first dual-axis cylinder is provided on the side wall of the movable plate. A first push arm is provided at both ends of the first dual-axis cylinder. An adjusting arm is provided at the end of each first push arm away from the first dual-axis cylinder and is slidably connected to the movable plate. A diverter is provided on the outer wall of each adjusting arm. A second dual-axis cylinder is provided at the bottom of the support plate. A fourth push arm is provided at both ends of the second dual-axis cylinder. An opening and closing plate is provided at the end of each fourth push arm away from the second dual-axis cylinder and is slidably connected to the support plate. A placement seat is provided at the top of the feeding rack.

[0008] Preferably, each of the adjusting arms has an adjusting frame on its inner wall, and each adjusting frame has a bidirectional lead screw movably installed inside it.

[0009] Preferably, each of the side walls of the adjustment frame is equipped with a servo motor, and the output end of the servo motor is connected to a bidirectional lead screw.

[0010] Preferably, the surface of the bidirectional lead screw is provided with two sets of threaded sleeves, and the threaded sleeves are threadedly connected to the bidirectional lead screw.

[0011] Preferably, each of the threaded sleeves is provided with a bearing block on its sidewall, and each bearing block is provided with a suction cup inside.

[0012] Preferably, one end of each suction cup is provided with a flexible hose, and the flexible hose is connected to the distributor.

[0013] Preferably, a second adjusting cylinder is provided on the outer wall of the placement seat, a third push arm is installed at the output end of the second adjusting cylinder, a moving block is slidably provided on the inner wall of the placement seat, and the third push arm is connected to the moving block.

[0014] Preferably, the movable block is provided with two sets of clamping arms on its side wall, and each clamping arm is provided with a clamp on its side wall.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the opening device not only realizes bidirectional adsorption to open the packaging bag and provides stable support for the packaging bag when injecting materials, but also facilitates flexible adjustment of the adsorption position of the suction cup and adsorption opening of packaging bags of different sizes, and improves the flexibility of use.

[0016] (1) The initial position of the clamp is located at one end away from the support frame. The clamp is operated to hold the two sides of the packaging bag. The second adjusting cylinder drives the third push arm to move. The third push arm drives the moving block to move. The moving block drives the clamping arm, clamp, and packaging bag to move above the support plate. The first adjusting cylinder drives the second push arm to move upward. The second push arm drives the moving plate, adjusting arm, and support plate to move upward, so that the support plate contacts the bottom of the packaging bag. The first dual-axis cylinder drives the two sets of first push arms to retract. The first push arm drives the two sets of adjusting arms to move closer to each other and the adjusting arm drives the suction cup to contact the outer surface of the packaging bag. At this time, the air pipe of the external air pump is connected to the flexible hose through the distributor. The external air pump starts to work and draws air. A negative pressure is formed inside the suction cup. The suction cup adheres to the surface of the packaging bag. Then the first dual-axis cylinder is opened in reverse. The dual-axis cylinder drives two sets of adjusting arms to move away from each other via the first push arm. The adjusting arms then drive the suction cups to move away from each other, and the suction cups pull open the packaging bag. Afterward, the feeding mechanism injects material into the packaging bag. The material accumulates inside the packaging bag and settles to the bottom. The support plate provides support for the packaging bag to prevent it from falling off due to insufficient suction force from the suction cups caused by excessive material weight. After the material is injected, the air pump stops supplying air, and the suction force of the suction cups disappears. The second dual-axis cylinder drives two sets of fourth push arms to move. The fourth push arms drive two sets of opening and closing plates to move away from each other to open the opening and closing plates. The packaged material falls from the support plate onto the belt conveyor below and is transported to the next station by the belt conveyor. This completes the use of this opening device, realizing bidirectional suction to open the packaging bag and providing stable support for the packaging bag when injecting material.

[0017] (2) The servo motor drives the bidirectional lead screw to rotate, and the bidirectional lead screw drives the two sets of threaded sleeves to move towards each other or opposite each other. The threaded sleeves drive the suction cups to move closer or further away from each other through the bearing block, thereby adjusting the distance between the two sets of suction cups and thus adjusting the suction point of the suction cups to adapt to the suction of packaging bags of different sizes. This makes it convenient to flexibly adjust the suction position of the suction cups, facilitates the suction opening of packaging bags of different sizes, and improves the flexibility of use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the support frame of this utility model;

[0020] Figure 3 This is a side view of the support frame of this utility model.

[0021] Figure 4 This is a three-dimensional perspective structural diagram of the placement base of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the support plate of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the adjusting arm of this utility model.

[0024] In the diagram: 1. Feeding rack; 2. Placement seat; 3. Support frame; 4. Moving plate; 5. Adjusting arm; 6. First push arm; 7. First dual-axis cylinder; 8. Support plate; 9. Adjusting frame; 10. First adjusting cylinder; 11. Second push arm; 12. Second adjusting cylinder; 13. Third push arm; 14. Moving block; 15. Clamping arm; 16. Fixture; 17. Opening and closing plate; 18. Second dual-axis cylinder; 19. Fourth push arm; 20. Servo motor; 21. Two-way lead screw; 22. Threaded sleeve; 23. Bearing block; 24. Suction cup; 25. Flexible hose; 26. Diverter. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figure 1-5 This utility model provides an embodiment of an automatic opening device for packaging bags with double suction cups, comprising a feeding rack 1 and a support frame 3. The support frame 3 is externally mounted on the feeding rack 1. A movable plate 4 is slidably mounted on the surface of the support frame 3. A first adjusting cylinder 10 is mounted at the top of the support frame 3. A second push arm 11 is mounted on the output end of the first adjusting cylinder 10 and is connected to the movable plate 4. A support plate 8 is mounted at the bottom of the movable plate 4. A first dual-axis cylinder 7 is mounted on the side wall of the movable plate 4. Both ends of cylinder 7 are provided with first push arms 6. The end of the first push arm 6 away from the first dual-axis cylinder 7 is provided with an adjusting arm 5. The adjusting arm 5 is slidably connected to the moving plate 4. The outer wall of the adjusting arm 5 is provided with a diverter 26. The bottom end of the support plate 8 is provided with a second dual-axis cylinder 18. Both ends of the second dual-axis cylinder 18 are provided with fourth push arms 19. The end of the fourth push arm 19 away from the second dual-axis cylinder 18 is provided with an opening and closing plate 17. The opening and closing plate 17 is slidably connected to the support plate 8. The top of the feeding rack 1 is provided with a placement seat 2.

[0027] The device is controlled by an external PLC controller, specifically a Siemens S7-200, which is existing technology. Therefore, its internal structure, working principle, and connection and control methods with the electrical components described in this application will not be elaborated upon. The initial position of the clamp 16 is located away from the support frame 3. By manipulating the clamp 16 to hold the two sides of the packaging bag, the second adjusting cylinder 12 is opened. The second adjusting cylinder 12 drives the third push arm 13 to move, which in turn drives the moving block 14 to move. The moving block 14 then moves the clamping arm 15, the clamp 16, and the packaging bag. Move the device above the support plate 8, open the first adjusting cylinder 10, which drives the second push arm 11 to move upward. With the sliding engagement between the moving plate 4 and the support frame 3, the second push arm 11 drives the moving plate 4, adjusting arm 5, and support plate 8 to move upward, so that the support plate 8 contacts the bottom of the packaging bag. Then, open the first dual-axis cylinder 7, which drives the two sets of first push arms 6 to retract. With the sliding engagement between the adjusting arm 5 and the moving plate 4, the first push arm 6 drives the two sets of adjusting arms 5 to move closer together, and the adjusting arm 5 drives the suction cup 24 to contact the outer surface of the packaging bag. At this time, the external air pump's air pipe... Connected to the flexible hose 25 via the distributor 26, the external air pump starts working and draws in air, creating negative pressure inside the suction cup 24. The suction cup 24 adheres to the surface of the packaging bag. Then, the first dual-axis cylinder 7 is opened in reverse. The first dual-axis cylinder 7 drives the two sets of adjusting arms 5 to move away from each other via the first push arm 6. The adjusting arms 5 drive the suction cups 24 to move away from each other, and the suction cups 24 pull the packaging bag open. Then, the feeding mechanism injects material into the packaging bag. The material accumulates inside the packaging bag and settles to the bottom of the packaging bag. The support plate 8 provides support for the packaging bag to prevent the packaging bag from falling off due to insufficient suction force of the suction cups 24 caused by excessive material weight. In this case, after the material is injected, the air pump stops supplying air, the suction force of the suction cup 24 disappears, and then the second dual-shaft cylinder 18 is opened. The second dual-shaft cylinder 18 drives the two sets of fourth push arms 19 to move. Under the sliding cooperation between the opening and closing plate 17 and the support plate 8, the fourth push arms 19 drive the two sets of opening and closing plates 17 to move away from each other to open the opening and closing plate 17. The packaged material falls from the support plate 8 onto the belt conveyor below, and the belt conveyor transports it to the next station, thus completing the use of this opening device. It realizes bidirectional adsorption to open the packaging bag and provides stable support for the packaging bag when injecting material.

[0028] An adjustment frame 9 is provided on the inner wall of the adjustment arm 5, and a two-way lead screw 21 is movably installed inside the adjustment frame 9.

[0029] Servo motors 20 are installed on the side walls of the adjustment frame 9, and the output end of the servo motors 20 is connected to the bidirectional lead screw 21. Two sets of threaded sleeves 22 are installed on the surface of the bidirectional lead screw 21, and the threaded sleeves 22 are threadedly connected to the bidirectional lead screw 21.

[0030] Each threaded sleeve 22 has a bearing block 23 on its side wall, and each bearing block 23 has a suction cup 24 inside. Each suction cup 24 has a flexible hose 25 at one end, and the flexible hose 25 is connected to the distributor 26.

[0031] A second adjusting cylinder 12 is provided on the outer wall of the placement seat 2. A third push arm 13 is installed at the output end of the second adjusting cylinder 12. A moving block 14 is slidably provided on the inner wall of the placement seat 2, and the third push arm 13 is connected to the moving block 14.

[0032] Two sets of clamping arms 15 are provided on the side wall of the movable block 14, and clamps 16 are provided on the side wall of each clamping arm 15.

[0033] Because packaging bags come in different sizes, when it is necessary to open packaging bags of different sizes, the servo motor 20 is turned on. The servo motor 20 drives the bidirectional lead screw 21 to rotate. With the bidirectional lead screw 21 and the threaded sleeve 22 connected by threads, the bidirectional lead screw 21 drives the two sets of threaded sleeves 22 to move towards or away from each other. The threaded sleeves 22 drive the suction cups 24 to move closer or further away from each other through the bearing block 23, thereby adjusting the distance between the two sets of suction cups 24 and thus adjusting the adsorption point of the suction cups 24 to adapt to adsorb packaging bags of different sizes. This facilitates flexible adjustment of the adsorption position of the suction cups, makes it convenient to adsorb and open packaging bags of different sizes, and improves the flexibility of use.

[0034] Working principle: The initial position of clamp 16 is located at the end away from the support frame 3. The clamp 16 is manipulated to hold the two sides of the packaging bag. The second adjusting cylinder 12 drives the third push arm 13 to move, which in turn drives the moving block 14 to move. The moving block 14 then moves the clamping arm 15, clamp 16, and packaging bag above the support plate 8. The first adjusting cylinder 10 drives the second push arm 11 to move upwards, which in turn moves the moving plate 4, adjusting arm 5, and support plate 8 upwards, causing the support plate 8 to contact the bottom of the packaging bag. The first dual-axis cylinder 7 then... The two sets of first push arms 6 retract, causing the two sets of adjusting arms 5 to move closer together. The adjusting arms 5 then bring the suction cups 24 into contact with the outer surface of the packaging bag. At this time, the air pipe of the external air pump is connected to the flexible hose 25 through the distributor 26. The external air pump starts working and draws in air, creating negative pressure inside the suction cups 24. The suction cups 24 adhere to the surface of the packaging bag. Then, the first dual-axis cylinder 7 is opened in the reverse direction. The first dual-axis cylinder 7, through the first push arm 6, causes the two sets of adjusting arms 5 to move away from each other. The adjusting arms 5 then move the suction cups 24 away from each other, and the suction cups 24 pull the packaging bag open. The feeding mechanism injects material into the packaging bag. The material accumulates and settles at the bottom of the bag, where it is supported by the support plate 8 to prevent the bag from falling off due to insufficient suction from the suction cups 24 caused by excessive weight of the material. After the material is injected, the air pump stops supplying air, and the suction of the suction cups 24 disappears. The second dual-shaft cylinder 18 drives the two sets of fourth push arms 19 to move, which in turn move the two sets of opening and closing plates 17 apart to open the opening and closing plates 17. The packaged material falls from the support plate 8 onto the belt conveyor below, where it is transported. The device moves to the next workstation to complete its operation. Due to the different sizes of the packaging bags, when opening bags of different sizes is required, the servo motor 20 drives the bidirectional lead screw 21 to rotate. The bidirectional lead screw 21 drives two sets of threaded sleeves 22 to move towards or away from each other. The threaded sleeves 22, through the bearing block 23, drive the suction cups 24 to move closer or further apart, adjusting the distance between the two sets of suction cups 24, and thus adjusting the suction point of the suction cups 24 to adapt to the suction of packaging bags of different sizes. This is the complete usage of the double-suction cup type automatic packaging bag opening device.

Claims

1. A double suction cup type automatic opening device for packaging bags, comprising a feeding rack (1) and a support frame (3), characterized in that: The feeding rack (1) is provided with a support frame (3) on its exterior. A movable plate (4) is slidably provided on the surface of the support frame (3). A first adjusting cylinder (10) is provided at the top of the support frame (3). A second push arm (11) is installed at the output end of the first adjusting cylinder (10) and is connected to the movable plate (4). A support plate (8) is provided at the bottom of the movable plate (4). A first double-axis cylinder (7) is provided on the side wall of the movable plate (4). A first push arm (6) is provided at both ends of the first double-axis cylinder (7). An adjusting arm (5) is provided at the end away from the first dual-axis cylinder (7), and the adjusting arm (5) is slidably connected to the moving plate (4). A diverter (26) is provided on the outer wall of the adjusting arm (5). A second dual-axis cylinder (18) is provided at the bottom end of the support plate (8). A fourth push arm (19) is provided at both ends of the second dual-axis cylinder (18). An opening and closing plate (17) is provided at the end of the fourth push arm (19) away from the second dual-axis cylinder (18), and the opening and closing plate (17) is slidably connected to the support plate (8). A placement seat (2) is provided at the top of the feeding rack (1).

2. The automatic opening device for a double suction cup packaging bag according to claim 1, characterized in that: Each of the adjusting arms (5) has an adjusting frame (9) on its inner wall, and each adjusting frame (9) has a bidirectional lead screw (21) movably installed inside it.

3. The automatic opening device for a double suction cup type packaging bag according to claim 2, characterized in that: Servo motors (20) are provided on the side walls of the adjustment frame (9), and the output end of the servo motors (20) is connected to the bidirectional lead screw (21).

4. The automatic opening device for a double suction cup packaging bag according to claim 2, characterized in that: The surface of the bidirectional lead screw (21) is provided with two sets of threaded sleeves (22), and the threaded sleeves (22) are threadedly connected to the bidirectional lead screw (21).

5. The automatic opening device for a double suction cup type packaging bag according to claim 4, characterized in that: Each threaded sleeve (22) has a bearing block (23) on its side wall, and each bearing block (23) has a suction cup (24) inside its interior.

6. The automatic opening device for a double suction cup packaging bag according to claim 5, characterized in that: One end of each suction cup (24) is provided with a flexible hose (25), and the flexible hose (25) is connected to the distributor (26).

7. The automatic opening device for a double suction cup type packaging bag according to claim 1, characterized in that: A second adjusting cylinder (12) is provided on the outer wall of the placement seat (2), and a third push arm (13) is installed at the output end of the second adjusting cylinder (12). A moving block (14) is slidably provided on the inner wall of the placement seat (2), and the third push arm (13) is connected to the moving block (14).

8. The automatic opening device for a double suction cup type packaging bag according to claim 7, characterized in that: The moving block (14) has two sets of clamping arms (15) on its side wall, and each clamping arm (15) has a clamp (16) on its side wall.

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