A bag opening system

Abstract

The utility model discloses a kind of bag opening systems, including bag feeding device, overturning bag feeding device, bag arranging positioning device, punching device, bag hanging transfer device, clamping device, bag cutting device and discharge device, the overturning bag feeding device can be docked with bag feeding device, the first baffle of movable is equipped on overturning bag feeding device, bag arranging positioning device is positioned in the top of overturning bag feeding device, the punching device is located in one side of bag arranging positioning device, the bag hanging transfer device includes at least two bag hanging components and transfer driving mechanism, the bag hanging component is used to be formed on the hole of material bag through punching device, the transfer driving mechanism is used to drive bag hanging component transfer to clamping device, the bag cutting device is located in one side of clamping device, the discharge device is located below clamping device.The utility model has the advantages that bag is found by punching bag hanging to find bag sewing line, avoid scratching inner bag, and strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of food and pharmaceutical packaging equipment technology, specifically to a bag opening system. Background Technology

[0002] As the initial stage of the raw material production line, unpacking the outer packaging bag is generally automated to speed up production. For example, patent CN109715505B discloses an opening assembly for bags used to hold pharmaceutical containers. This assembly clamps the end cap of the outer packaging bag using a clamping mechanism and cuts the end cap with a cutting element to open the bag. However, this opening assembly lacks precision in cutting the bag. For outer bags with sewn seams, it is difficult to accurately locate the seams and cut the bag, which may tear the inner bag. Furthermore, it is not suitable for bags of different sizes, meaning that bags of different sizes cannot be hung on the clamp and opened simultaneously. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a bag opening system that can accurately locate the sewing thread by punching holes and hanging the bag, avoid scratching the inner bag, and is highly adaptable.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A bag opening system includes a bag feeding device, a flipping bag feeding device, a bag positioning device, a punching device, a bag hanging and transferring device, a clamping device, a bag cutting device, and a discharge device. The flipping bag feeding device can be connected to the bag feeding device. The flipping bag feeding device is provided with a movable first baffle. The bag positioning device is located above the flipping bag feeding device. The punching device is located on one side of the bag positioning device. The bag hanging and transferring device includes at least two bag hanging components and a transfer drive mechanism. The bag hanging components are used to pass through holes formed on the bag by the punching device. The transfer drive mechanism is used to drive the bag hanging components to transfer to the clamping device. The bag cutting device is located on one side of the clamping device, and the discharge device is located below the clamping device.

[0006] As a further improvement to the above technical solution:

[0007] The bag feeding device includes a first conveyor line, and shaping push plates that can move closer to or further away from each other are provided on both sides of the first conveyor line.

[0008] The flipping bag-loading device includes a first support frame, a second conveyor line, and a first flipping drive. The input end of the second conveyor line can be connected to the bag-loading device, and the output end of the second conveyor line is rotatably connected to the first support frame. The first baffle is located at the rotatable connection end of the second conveyor line. One end of the first flipping drive is hinged to the first support frame, and the other end is hinged to the second conveyor line.

[0009] The bag positioning device includes a second support frame, a first lifting drive, a second lifting drive, multiple bag-strapping clamps, and multiple first grippers. The multiple bag-strapping clamps are connected by connecting rods. Each bag-strapping clamp includes a first gripper and a second gripper. The first gripper and the second gripper are respectively hinged to both sides of the second support frame. At least one of the first gripper and the second gripper has a connecting rod hinged to the opposite side. The other ends of the connecting rods on both sides are hinged to the output end of the first lifting drive. The multiple first grippers are connected by a first connecting seat, and the first connecting seat is connected to the output end of the second lifting drive.

[0010] The punching device includes a third support frame and a punching mechanism. The punching mechanism is located on one side of the third support frame, and the bag hanging component is located on the other side of the third support frame. The third support frame is connected to the transfer drive mechanism.

[0011] The drilling mechanism is equipped with a pulse blowing component.

[0012] The clamping device includes a fourth support frame, multiple second grippers, and a third lifting drive. The multiple second grippers are connected by a second connecting seat. The telescopic end of the third lifting drive is connected to the fourth support frame, and the connecting seat is located on the fourth support frame.

[0013] The bag-cutting device includes a cutter and a moving drive. The cutter is movably mounted on the fourth support frame and located below the second gripper. The moving drive is used to drive the cutter to reciprocate.

[0014] The discharge device includes a fifth support frame, a third conveyor line, a tail bag clamping mechanism, a second flipping drive, and an outer bag collecting mechanism. One end of the second flipping drive is hinged to the fifth support frame, and the other end is hinged to the third conveyor line. One end of the third conveyor line is rotatably mounted on the fifth support frame, and a second baffle is provided at the rotatable connection end. The top of the second baffle is rotatably connected to the third conveyor line. The tail bag clamping mechanism is located at the other end of the third conveyor line, and the outer bag collecting mechanism is located below the tail bag clamping mechanism.

[0015] In one method of opening a bag in the above-mentioned bag opening system, the packaging material is fed into the bag inlet device and conveyed to the flipping bag inlet device. The flipping bag inlet device flips the bag upright. The bag positioning device clamps the bag. The punching device punches a hole on the lower side of the bag seam line. The bag hanging component passes through the hole punched in the bag and abuts against the bag seam line. The bag positioning device releases the packaging material. The transfer drive mechanism drives the bag hanging component and the bag to the clamping device. The clamping device clamps the upper edge of the bag. The bag cutting device can then accurately cut the bag. The cut bag falls into the discharge device and is output.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] The bag opening system and method disclosed in this utility model first arranges and positions the material bag using a bag positioning device, then punches holes in the material bag using a punching device, and then hangs the bag through the holes using a bag hanging component. Under the weight of the material bag, the bag hanging component can accurately find the sewing line, which plays a role in pre-positioning the bag cutting position. This makes it easy for the clamping device to hold the upper edge of the sewing line and for the bag cutting device to accurately find the sewing line to cut the bag, avoiding tearing the inner bag. In addition, the first baffle of the flipping bag device is movable, which can adapt to various sizes of material bags, making it highly adaptable and easy to adjust. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the bag opening system of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the bag-feeding device in this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the flip-over bag-top device in this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the bag positioning device in this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the punching device and the bag-carrying transfer device in this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the clamping device and the bag cutting device in this utility model.

[0024] Figure 7 This is a three-dimensional structural diagram of the discharge device in this utility model.

[0025] The labels in the diagram represent: 1. Bag feeding device; 11. First conveyor line; 12. Shaping pusher plate; 2. Turning bag loading device; 21. First support frame; 22. Second conveyor line; 23. First turning drive; 24. First baffle; 25. Screw drive assembly; 3. Bag positioning device; 31. Second support frame; 32. First lifting drive; 33. Second lifting drive; 34. Bag clamp; 341. First gripper; 342. Second gripper; 343. Connecting rod; 35. First gripper; 36. Connecting rod; 37. 1. First connecting seat; 4. Punching device; 41. Third support frame; 42. Punching mechanism; 5. Bag hanging and transferring device; 51. Bag hanging component; 52. Transfer drive mechanism; 6. Clamping device; 61. Fourth support frame; 62. Second gripper; 63. Third lifting drive; 7. Bag cutting device; 71. Cutting knife; 72. Moving drive; 8. Discharge device; 81. Fifth support frame; 82. Third conveyor line; 83. Tail bag clamping mechanism; 84. Second flipping drive; 85. Outer bag collection mechanism; 86. Second baffle. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Example 1

[0031] Figures 1 to 7 This illustration shows an embodiment of the bag opening system of the present invention. The bag opening system of this embodiment includes a bag feeding device 1, a flipping bag feeding device 2, a bag positioning device 3, a punching device 4, a bag hanging and transferring device 5, a clamping device 6, a bag cutting device 7, and a discharge device 8. The flipping bag feeding device 2 can be connected to the bag feeding device 1. The flipping bag feeding device 2 is provided with a movable first baffle 24. The bag positioning device 3 is located above the flipping bag feeding device 2. The punching device 4 is located on one side of the bag positioning device 3. The bag hanging and transferring device 5 includes at least two bag hanging components 51 and a transfer drive mechanism 52. The bag hanging components 51 are used to pass through the holes formed on the bag by the punching device 4. The transfer drive mechanism 52 is used to drive the bag hanging components 51 to transfer to the clamping device 6. The bag cutting device 7 is located on one side of the clamping device 6. The discharge device 8 is located below the clamping device 6.

[0032] The bag opening process of this bag opening system is as follows: The bag is input from the bag inlet device 1 and enters the flipping bag top device 2. The flipping bag top device 2 flips, and at this time the first baffle 24 supports the bag so that the bag is in an upright state. Then the bag positioning device 3 above sorts and positions the bag so that the inner bag falls naturally, leaving a hole for punching. Then the punching device 4 on one side punches a hole in the bag. Then the bag hanging component 51 passes through the holes on both sides of the bag. The bag positioning device 3 releases the bag, and the bag falls. The bag hanging component 51 can then accurately abut against the sewing line. Then the transfer drive mechanism 52 drives the bag hanging component 51 to transfer the bag to the clamping device 6. The clamping device 6 can then clamp the bag along the upper edge of the sewing line. The bag cutting device 7 cuts the bag, and the bag falls into the discharge device 8 below for output.

[0033] This unsealing system first arranges and positions the material bag using the bag positioning device 3, then punches holes in the bag using the punching device 4, and finally hangs the bag through the holes using the bag hanging component 51. Under the weight of the material bag, the bag hanging component 51 can accurately locate the sewing thread, playing a pre-positioning role in the bag cutting position. This facilitates the clamping device 6 to hold the upper edge of the sewing thread and allows the bag cutting device 7 to accurately locate the sewing thread and cut the bag, avoiding tearing the inner bag. In addition, the first baffle 24 of the flipping bag device 2 is movable, which can adapt to various sizes of material bags, has strong adaptability, and is easy to adjust. Preferably, the first baffle 24 is driven by a drive component and a screw transmission assembly 25 to ensure the adjustment range.

[0034] Furthermore, such as Figure 2 As shown, in this embodiment, the bag feeding device 1 includes a first conveyor line 11, with shaping push plates 12 on both sides of the first conveyor line 11 that can move closer or further apart. The first conveyor line 11 conveys the bags; during the conveying process, the shaping push plates 12 move closer together to shape the bags, ensuring they are positioned centrally on the first conveyor line 11 for easier subsequent conveying. Preferably, the shaping push plates 12 are driven by cylinders, resulting in a simple structure and low cost.

[0035] Furthermore, such as Figure 3 As shown, in this embodiment, the bag-flipping device 2 includes a first support frame 21, a second conveyor line 22, and a first flipping drive 23. The input end of the second conveyor line 22 can be connected to the bag-feeding device 1, and the output end of the second conveyor line 22 is rotatably connected to the first support frame 21. A first baffle 24 is movably disposed at the rotatable connection end of the second conveyor line 22. One end of the first flipping drive 23 is hinged to the first support frame 21, and the other end is hinged to the second conveyor line 22. In the initial state, the second conveyor line 22 is connected to the first conveyor line 11 to convey the bag. After the bag is in place, the first flipping drive 23 drives the second conveyor line 22 to flip, and the bag is supported and held upright by the first baffle 24.

[0036] Furthermore, such as Figure 4 As shown, in this embodiment, the bag positioning device 3 includes a second support frame 31, a first lifting drive 32, a second lifting drive 33, multiple bag-strapping clamps 34, and multiple first grippers 35. The multiple bag-strapping clamps 34 are connected by connecting rods 36. Each bag-strapping clamp 34 includes a first gripper 341 and a second gripper 342. The first gripper 341 and the second gripper 342 are respectively hinged to both sides of the second support frame 31. At least one first gripper 341 and the second gripper 342 are hinged to the opposite side of a connecting rod 343. The other ends of the connecting rods 343 on both sides are hinged to the output end of the first lifting drive 32. The multiple first grippers 35 are connected by a first connecting seat 37, and the first connecting seat 37 is connected to the output end of the second lifting drive 33. After the bag is flipped over, the first lifting drive 32 drives the first gripper 341 and the second gripper 342 to swing through lifting, thereby smoothing the upper part of the bag. After smoothing, the bag-straightening gripper 34 opens, and the second lifting drive 33 drives the first gripper 35 to descend, clamp the bag, and lift it up, so that the bag is in a natural hanging state, which is convenient for subsequent hole opening.

[0037] Furthermore, such as Figure 5 As shown, in this embodiment, the punching device 4 includes a third support frame 41 and a punching mechanism 42. The punching mechanism 42 is located on one side of the third support frame 41, and the bag hanging component 51 is located on the other side of the third support frame 41. The third support frame 41 is connected to the transfer drive mechanism 52. The transfer drive mechanism 52 drives the third support frame 41 to move, so that the punching mechanism 42 faces the bag and punches a hole in the bag in its naturally hanging state. After punching, the transfer drive mechanism 52 drives the third support frame 41 to move to the position where the bag hanging component 51 faces the hole, facilitating hanging. Both the punching mechanism 42 and the bag hanging component 51 are located on the third support frame 41, resulting in a compact structure and cost savings. Preferably, the bag hanging component 51 is a hook.

[0038] Furthermore, such as Figure 5 As shown, in this embodiment, the punching mechanism 42 is equipped with a pulse air blowing component to prevent the inner bag from being scratched when the outer bag is punched.

[0039] Furthermore, such as Figure 6 As shown, in this embodiment, the clamping device 6 includes a fourth support frame 61, multiple second grippers 62, and a third lifting drive 63. The multiple second grippers 62 are connected by a second connecting seat, and the telescopic end of the third lifting drive 63 is connected to the fourth support frame 61, with the connecting seat located on the fourth support frame 61. The transfer drive mechanism 52 drives the bag hanging component 51 to move the bag to the clamping device 6, and the third lifting drive 63 drives the second grippers 62 to descend and clamp the upper edge of the bag's sewing thread. Furthermore, the provision of two clamping components, the first gripper 35 and the second gripper 62, allows the bag to be fed in and out simultaneously, reducing waiting time and improving bag opening efficiency. Of course, in other embodiments, only one movable clamping component can be provided to achieve the feeding purpose.

[0040] Furthermore, such as Figure 6 As shown, in this embodiment, the bag cutting device 7 includes a cutter 71 and a moving drive 72. The cutter 71 is movably mounted on the fourth support frame 61 and located below the second gripper 62. The moving drive 72 is used to drive the cutter 71 to reciprocate. The moving drive 72 drives the cutter 71 below the second gripper 62 to cut open the outer bag of the material bag.

[0041] Furthermore, such as Figure 7 As shown, in this embodiment, the discharge device 8 includes a fifth support frame 81, a third conveyor line 82, a tail bag clamping mechanism 83, a second flipping drive 84, and an outer bag collecting mechanism 85. One end of the second flipping drive 84 is hinged to the fifth support frame 81, and the other end is hinged to the third conveyor line 82. One end of the third conveyor line 82 is rotatably mounted on the fifth support frame 81, and a second baffle 86 is provided at the rotatable connection end. The top end of the second baffle 86 is rotatably connected to the third conveyor line 82. The tail bag clamping mechanism 83 is located at the other end of the third conveyor line 82, and the outer bag collecting mechanism 85 is located below the tail bag clamping mechanism 83. The cut outer bag falls onto the third conveyor line 82 below. At this time, the second flip drive 84 drives the third conveyor line 82 to flip, causing the bag to stand up again and be blocked by the second baffle 86. The inner bag slides down, leaving a gap at the tail of the bag. The tail bag clamping mechanism 83 clamps the edge of the bag tail. Then, the second baffle 86 flips, no longer blocking the inner bag. The inner bag comes out under the action of gravity and the conveying action of the third conveyor line 82. Finally, the second flip drive 84 drives the third conveyor line 82 to reset, and the tail bag clamping mechanism 83 clamps the tail bag and moves it to the outside of the third conveyor line 83, where it falls into the outer bag collection mechanism 85 for collection. Preferably, the tail bag clamping mechanism 83 is connected to a telescopic drive, and a structure such as a positioning plate is provided between the clamping device 6 and the discharge device 8, so that when the bag falls, the uncut end of the bag falls towards the tail bag clamping mechanism 83.

[0042] Example 2

[0043] Figure 1 This illustration shows an embodiment of the bag opening method of the present invention. In this embodiment, the bag opening system involves the packaging material entering the bag from the bag inlet device 1, being conveyed to the flipping bag loading device 2, which flips the bag upright. The bag positioning device 3 clamps the bag, and the punching device 4 punches a hole on the lower side of the bag's seam line. The bag hanging component 51 passes through the hole punched by the punching device 4 into the bag and rests against the packaging material's seam line. The bag positioning device 3 releases the packaging material, and the transfer drive mechanism 52 drives the bag hanging component 51 and the bag to the clamping device 6. The clamping device 6 clamps the upper edge of the bag, and the bag cutting device 7 precisely cuts the bag. The cut bag falls into the discharge device 8 for output.

[0044] This unstitching method first arranges and positions the bag using the bag positioning device 3, then punches holes in the bag using the punching device 4, and then hangs the bag using the hanging component 51. Under the weight of the bag, the hanging component 51 can accurately locate the sewing thread, which plays a role in pre-positioning the bag cutting position. This makes it easier for the clamping device 6 to hold the upper edge of the sewing thread and for the bag cutting device 7 to accurately locate the sewing thread and cut the bag, avoiding tearing the inner bag. In addition, the first baffle 24 of the flipping bag device 2 is movable and can adapt to various sizes of bags, making it highly adaptable.

[0045] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A bag-opening system, characterized in that: The device includes a bag feeding device (1), a flipping bag feeding device (2), a bag positioning device (3), a punching device (4), a hanging bag transfer device (5), a clamping device (6), a bag cutting device (7), and a discharge device (8). The flipping bag feeding device (2) can be connected to the bag feeding device (1). The flipping bag feeding device (2) is provided with a movable first baffle (24). The bag positioning device (3) is located above the flipping bag feeding device (2). The punching device (4) is located on one side of the bag positioning device (3). The hanging bag transfer device (5) includes at least two hanging bag components (51) and a transfer drive mechanism (52). The hanging bag components (51) are used to pass through the holes formed on the bag by the punching device (4). The transfer drive mechanism (52) is used to drive the hanging bag components (51) to transfer to the clamping device (6). The bag cutting device (7) is located on one side of the clamping device (6). The discharge device (8) is located below the clamping device (6).

2. The bag-opening system according to claim 1, characterized in that: The bag feeding device (1) includes a first conveyor line (11), and shaping push plates (12) that can move closer to or further away from each other are provided on both sides of the first conveyor line (11).

3. The bag-opening system according to claim 1, characterized in that: The flipping bag-loading device (2) includes a first support frame (21), a second conveyor line (22) and a first flipping drive (23). The input end of the second conveyor line (22) can be connected to the bag-loading device (1), and the output end of the second conveyor line (22) is rotatably connected to the first support frame (21). The first baffle (24) is located at the rotatable connection end of the second conveyor line (22). One end of the first flipping drive (23) is hinged to the first support frame (21), and the other end is hinged to the second conveyor line (22).

4. The bag-opening system according to claim 1, characterized in that: The bag positioning device (3) includes a second support frame (31), a first lifting drive (32), a second lifting drive (33), a plurality of bag-strapping clamps (34) and a plurality of first grippers (35). The plurality of bag-strapping clamps (34) are connected by connecting rods (36). Each bag-strapping clamp (34) includes a first gripper (341) and a second gripper (342). The first gripper (341) and the second gripper (342) are respectively hinged to both sides of the second support frame (31). At least one of the first gripper (341) and the second gripper (342) is hinged to a connecting rod (343) on the opposite side. The other end of the connecting rods (343) on both sides is hinged to the output end of the first lifting drive (32). The plurality of first grippers (35) are connected by a first connecting seat (37). The first connecting seat (37) is connected to the output end of the second lifting drive (33).

5. The bag-opening system according to any one of claims 1 to 4, characterized in that: The punching device (4) includes a third support frame (41) and a punching mechanism (42). The punching mechanism (42) is located on one side of the third support frame (41), and the bag hanging component (51) is located on the other side of the third support frame (41). The third support frame (41) is connected to the transfer drive mechanism (52).

6. The bag-opening system according to claim 5, characterized in that: The punching mechanism (42) is equipped with a pulse blowing component.

7. The bag-opening system according to any one of claims 1 to 4, characterized in that: The clamping device (6) includes a fourth support frame (61), a plurality of second grippers (62) and a third lifting drive (63). The plurality of second grippers (62) are connected by a second connecting seat. The telescopic end of the third lifting drive (63) is connected to the fourth support frame (61). The connecting seat is located on the fourth support frame (61).

8. The bag-opening system according to claim 7, characterized in that: The bag cutting device (7) includes a cutter (71) and a moving drive (72). The cutter (71) is movably mounted on the fourth support frame (61) and located below the second gripper (62). The moving drive (72) is used to drive the cutter (71) to move back and forth.

9. The bag-opening system according to any one of claims 1 to 4, characterized in that: The discharge device (8) includes a fifth support frame (81), a third conveyor line (82), a tail bag clamping mechanism (83), a second flipping drive (84), and an outer bag collecting mechanism (85). One end of the second flipping drive (84) is hinged to the fifth support frame (81), and the other end is hinged to the third conveyor line (82). One end of the third conveyor line (82) is rotatably mounted on the fifth support frame (81), and the rotatable connection end is provided with a second baffle (86). The top of the second baffle (86) is rotatably connected to the third conveyor line (82). The tail bag clamping mechanism (83) is located at the other end of the third conveyor line (82), and the outer bag collecting mechanism (85) is located below the tail bag clamping mechanism (83).

Images