Bag taking device of packaging machine

Abstract

The utility model discloses a packing machine bag taking device which comprises an installation plate fixedly installed on the ground and a material taking machine installed on the side edge of the installation plate, a first connecting piece is fixedly installed on the side edge of the installation plate, when the device is started to clamp a packing bag, a motor is started firstly to enable the output end of the motor to drive a disc-type groove cam to rotate, and the material taking machine is installed on the side edge of the installation plate. The disc-type groove cam drives the cam swing rod to swing when rotating, one end of the disc-type groove cam rotates along the first connecting piece, the disc-type groove cam drives one end of the second connecting rod to swing together when swinging, and the other end of the second connecting rod drives the transition swing rod to swing on the second connecting piece under the driving of the disc-type groove cam. The transition swing rod swings to drive the first connecting rod connected with the transition swing rod to slide back and forth together, the first connecting rod moves to drive the clamping assembly to clamp packaging bags, compared with a traditional packaging machine bag taking device, the packaging machine bag taking device has the advantages that a tension spring structure is omitted, the running stability of the cam is improved by using the disc type groove cam, and the device is more convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging bag auxiliary equipment, specifically a bag-picking device for a packaging machine. Background Technology

[0002] Packaging machines are machines that package products, serving to protect and enhance their appearance. Packaging machines mainly fall into two categories: automated production line packaging and peripheral product packaging equipment. A bag-picking device installed on the packaging machine removes the packaging bag from the placement slot and places the filler material to be packaged into it.

[0003] The existing bag-grabbing device of the packaging machine has a loose structure due to its excessively long swing arm, resulting in poor overall stability. This may cause significant shaking during high-speed operation, making it difficult to accurately and effectively grasp the bag. Furthermore, the tension spring structure is prone to metal fatigue and requires frequent and cumbersome maintenance.

[0004] Therefore, we propose a bag-removing device for a packaging machine to solve the problems mentioned above. Utility Model Content

[0005] This utility model provides a bag-grabbing device for packaging machines, which solves the problems mentioned in the background art. The existing bag-grabbing devices for packaging machines have a loose structure due to the excessively long swing arm, resulting in poor overall stability. This can cause large vibrations during high-speed operation, making it impossible to accurately and effectively grasp the bags. Furthermore, the tension spring structure is prone to metal fatigue and requires frequent and cumbersome maintenance.

[0006] This utility model provides the following technical solution: a bag-picking device for a packaging machine, comprising a mounting plate fixedly installed on the ground and a material picker installed on the side of the mounting plate. A first connector is fixedly installed on the side of the mounting plate, and a cam rocker arm is rotatably connected to the side of the first connector. A disc-shaped groove cam is engaged with the side wall of the cam rocker arm. A second connecting rod is rotatably connected to one end of the cam rocker arm, and a transition rocker arm is rotatably connected to one end of the second connecting rod. A second connector is fixedly installed on the side wall of the mounting plate, and the transition rocker arm is rotatably connected to the second connector. A first connecting rod is rotatably connected to one end of the transition rocker arm, and a clamping assembly is connected to one end of the first connecting rod.

[0007] As an optional solution of this utility model, a connecting plate is fixedly installed on the side wall of the mounting plate, and the clamping assembly includes a long drive swing rod rotatably connected to the connecting plate.

[0008] As an optional embodiment of this utility model, a short driving swing rod is rotatably connected to the side wall of the connecting plate, and one end of the short driving swing rod is rotatably connected to the connecting rod.

[0009] As an optional solution of this utility model, two hydraulic buffers are fixedly installed on the side wall of the connecting plate, and the two hydraulic buffers are respectively arranged on both sides of the short drive rocker arm.

[0010] As an optional solution of this utility model, a steering stabilizing link is fixedly installed on one side of the connecting plate, and a bag-retrieving swing arm is rotatably connected to one end of the steering stabilizing link. The bag-retrieving swing arm is fixedly connected to the short drive swing arm.

[0011] As an optional solution of this utility model, a cylinder is fixedly installed at one end of the long drive swing arm, and a bag-retrieving claw is fixedly connected to one end of the cylinder.

[0012] As an optional solution of this utility model, a storage bag bin is fixedly installed at the upper end of the material handling machine, and a conveying trolley is movably installed on the side of the connecting plate.

[0013] This utility model has the following beneficial effects:

[0014] 1. When starting the device to grip the packaging bag, first start the motor so that its output end drives the disc-shaped grooved cam to rotate. When the disc-shaped grooved cam rotates, it drives the cam rocker arm to swing. One end of the disc-shaped grooved cam rotates along the connecting part one. When the disc-shaped grooved cam swings, it drives one end of the connecting rod two to swing together. Under the drive of the disc-shaped grooved cam, the other end of the connecting rod two drives the transition rocker arm to swing on the connecting part two. The swing of the transition rocker arm drives the connecting rod one connected to it to slide back and forth. The movement of the connecting rod one drives the gripping assembly to grip the packaging bag. Compared with the traditional packaging machine bag gripping device, this packaging machine bag gripping device reduces the tension spring structure. By using the disc-shaped grooved cam, the stability of the cam operation is increased, and the maintenance of the device is more convenient.

[0015] 2. With the cooperation of the long drive swing arm, short drive swing arm, hydraulic buffer, cylinder, bag-picking claw, steering stabilizing link, bag-picking swing arm, material picker, bag storage bin, and conveying trolley, the 10° swing motion of the bag-picking swing arm of this device is completed by the joint assistance of the short drive swing arm and the steering stabilizing link. This allows the rotation center of the bag-picking swing arm to be set close to the center of gravity of the workpiece, making its swing operation more stable. At the same time, the steering stabilizing link is connected to the tail of the bag-picking swing arm through a joint bearing, which also avoids the shaking of the bag-picking swing arm during operation. This allows the entire bag-picking structure to complete the bag-picking action smoothly and accurately in both low-speed and high-speed operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front structure of this utility model.

[0017] Figure 2 This is a top view of the overall structure of this utility model.

[0018] Figure 3 This is a side view of the connecting plate system of this utility model.

[0019] Figure 4 This is a schematic diagram of the overall side structure of this utility model.

[0020] In the diagram: 1. Mounting plate; 11. Connector 1; 12. Cam rocker arm; 13. Link 2; 14. Transition rocker arm; 15. Connector 2; 16. Disc groove cam; 17. Connecting plate; 18. Link 1; 2. Clamping assembly; 21. Long drive rocker arm; 22. Short drive rocker arm; 23. Hydraulic buffer; 24. Cylinder; 25. Bag picking claw; 26. Steering stabilizing link; 27. Bag picking rocker arm; 3. Material picking machine; 31. Bag storage bin; 4. Conveying trolley. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0022] Please see Figure 1 - Figure 3 A bag-picking device for a packaging machine includes a mounting plate 1 fixedly installed on the ground and a material picker 3 installed on the side of the mounting plate 1. A connector 11 is fixedly installed on the side of the mounting plate 1. A cam rocker arm 12 is rotatably connected to the side of the connector 11. A disc-shaped groove cam 16 is engaged with the side wall of the cam rocker arm 12. A connecting rod 13 is rotatably connected to one end of the cam rocker arm 12. A transition rocker arm 14 is rotatably connected to one end of the connecting rod 13. A connector 15 is fixedly installed on the side wall of the mounting plate 1. The transition rocker arm 14 is rotatably connected to the connector 15. A connecting rod 18 is rotatably connected to one end of the transition rocker arm 14. A clamping assembly 2 is connected to one end of the connecting rod 18.

[0023] When starting the device to grip the packaging bag, the motor is first started so that its output end drives the disc-shaped grooved cam 16 to rotate. When the disc-shaped grooved cam 16 rotates, it drives the cam rocker arm 12 to swing. One end of the disc-shaped grooved cam 16 rotates along the connecting part 11. When the disc-shaped grooved cam 16 swings, it drives one end of the connecting rod 13 to swing together. Under the drive of the disc-shaped grooved cam 16, the other end of the connecting rod 13 drives the transition rocker arm 14 to swing on the connecting part 15. The swing of the transition rocker arm 14 drives the connecting rod 18 connected to it to slide back and forth. The movement of the connecting rod 18 drives the gripping assembly 2 to grip the packaging bag. Compared with the traditional bag-grabbing device of the packaging machine, this device reduces the tension spring structure. By using the disc-shaped grooved cam, the stability of the cam operation is increased, and the maintenance of the device is more convenient. Example 2

[0024] Please see Figure 2 - Figure 4 A connecting plate 17 is fixedly installed on the side wall of the mounting plate 1. The clamping assembly 2 includes a long drive swing rod 21 rotatably connected to the connecting plate 17. With the cooperation between the mounting plate 1, the connecting plate 17 and the long drive swing rod 21, the long drive swing rod 21 can rotate on the connecting plate 17.

[0025] A short drive rocker arm 22 is rotatably connected to the side wall of the connecting plate 17. One end of the short drive rocker arm 22 is rotatably connected to the connecting rod 18. With the cooperation between the connecting plate 17, the short drive rocker arm 22 and the connecting rod 18, the movement of the connecting rod 18 will drive the short drive rocker arm 22 to move.

[0026] Two hydraulic buffers 23 are fixedly installed on the side wall of the connecting plate 17. The two hydraulic buffers 23 are respectively set on both sides of the short drive swing arm 22. With the cooperation between the connecting plate 17, the hydraulic buffers 23 and the short drive swing arm 22, the hydraulic buffers 23 can limit the swing range of the short drive swing arm 22.

[0027] A steering stabilizing link 26 is fixedly installed on one side of the connecting plate 17. One end of the steering stabilizing link 26 is rotatably connected to a bag-retrieving swing arm 27. The bag-retrieving swing arm 27 is fixedly connected to a short drive swing arm 22. With the cooperation between the connecting plate 17, the steering stabilizing link 26, the bag-retrieving swing arm 27 and the short drive swing arm 22, when the short drive swing arm 22 is driven to move, it simultaneously drives the bag-retrieving swing arm 27 to move.

[0028] A cylinder 24 is fixedly installed at one end of the long drive swing arm 21, and a bag-grabbing claw 25 is fixedly connected to one end of the cylinder 24. With the cooperation between the long drive swing arm 21, the cylinder 24 and the bag-grabbing claw 25, the cylinder 24 starts to drive the bag-grabbing claw at the lower end of the long drive swing arm 21 to move and clamp the packaging bag.

[0029] A storage bag bin 31 is fixedly installed at the upper end of the material handling machine 3, and a conveying trolley 4 is movably installed on the side of the connecting plate 17.

[0030] When the device needs to grip the packaging bag, the motor rotates, driving the disc-shaped cam 16 to rotate as well. The rotation of the disc-shaped cam 16 causes the connecting rod 18 to swing back and forth on the surface of the connecting plate 17. As the connecting rod 18 moves, it drives the short drive swing rod 22 to rotate on the surface of the connecting plate 17. When the short drive swing rod 22 swings back and forth, it contacts the hydraulic buffers 23 on both sides. The hydraulic buffers 23 limit the swing range of the short drive swing rod 22, reducing the force exerted on the two ends of the short drive swing rod 22, thus increasing the service life of the device. When the short drive swing rod 22 swings, it drives the bag-grabbing swing rod 27 to swing together. During the swing, the steering stabilizing link 26 causes the bag-grabbing swing rod 27 to swing 90°, driving the bag-grabbing claw 25 to the position of the storage compartment 31. Under the action of the cylinder 24, it is then driven... The moving bag-grabbing claw 25 closes to grasp the prepared empty bag. As the motor continues to run, the disc-type slotted cam 16 drives the bag-grabbing swing arm 27 to swing 90° in the opposite direction to the fixed bag-feeding position. At the same time, the conveying trolley 4 clamps the empty bag, and the cylinder 24 drives the bag-grabbing claw 25 to open and release the empty bag. At this time, the conveying trolley 4 moves outward to transport the opened bag to the next station to complete one bag-grabbing cycle. The 90° swing action of the bag-grabbing swing arm 27 of this device is completed by the cooperation of the short drive swing arm 3 and the steering stabilizing link 26, so that the rotation center of the bag-grabbing swing arm 27 can be set at a position close to the center of gravity of the workpiece, making it more stable during swinging operation. At the same time, the steering stabilizing link 26 and the tail of the bag-grabbing swing arm 27 are connected by a joint bearing, which also avoids the shaking of the bag-grabbing swing arm 27 during operation. This allows the entire bag-grabbing structure to complete the bag-grabbing action smoothly and accurately in both low-speed and high-speed operation.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A bag-picking device for a packaging machine, comprising a mounting plate (1) fixedly installed on the ground and a material-picking machine (3) installed on the side of the mounting plate (1), characterized in that: A connector (11) is fixedly installed on the side of the mounting plate (1). A cam rocker arm (12) is rotatably connected to the side of the connector (11). A disc groove cam (16) is snapped into the side wall of the cam rocker arm (12). A connecting rod (13) is rotatably connected to one end of the cam rocker arm (12). A transition rocker arm (14) is rotatably connected to one end of the connecting rod (13). A connector (15) is fixedly installed on the side wall of the mounting plate (1). The transition rocker arm (14) is rotatably connected to the connector (15). A connecting rod (18) is rotatably connected to one end of the transition rocker arm (14). A clamping assembly (2) is connected to one end of the connecting rod (18).

2. The bag-picking device for a packaging machine according to claim 1, characterized in that: A connecting plate (17) is fixedly installed on the side wall of the mounting plate (1), and the clamping assembly (2) includes a long drive lever (21) rotatably connected to the connecting plate (17).

3. The bag-picking device for a packaging machine according to claim 2, characterized in that: The side wall of the connecting plate (17) is rotatably connected to a short drive rocker arm (22), and one end of the short drive rocker arm (22) is rotatably connected to the connecting rod (18).

4. The bag-picking device for a packaging machine according to claim 3, characterized in that: Two hydraulic buffers (23) are fixedly installed on the side wall of the connecting plate (17), and the two hydraulic buffers (23) are respectively arranged on both sides of the short drive rocker arm (22).

5. A bag-picking device for a packaging machine according to claim 4, characterized in that: A steering stabilizing link (26) is fixedly installed on one side of the connecting plate (17), and a bag-retrieving swing arm (27) is rotatably connected to one end of the steering stabilizing link (26). The bag-retrieving swing arm (27) is fixedly connected to the short drive swing arm (22).

6. A bag-picking device for a packaging machine according to claim 5, characterized in that: A cylinder (24) is fixedly installed at one end of the long drive lever (21), and a bag-retrieving claw (25) is fixedly connected to one end of the cylinder (24).

7. A bag-picking device for a packaging machine according to claim 6, characterized in that: The upper end of the material handling machine (3) is fixedly installed with a storage bag bin (31), and the side of the connecting plate (17) is movably installed with a conveying trolley (4).

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