A bag clamping and shifting device

Abstract

The utility model provides a kind of bag clamping displacement device, including rack, bag clamping mechanism and displacement mechanism, bag clamping mechanism includes bag clamping motor, bag clamping linkage assembly, bag clamping guide rod, first clamping assembly and second clamping assembly, two ends of bag clamping guide rod extend along first direction and connect in rack, first clamping assembly and second clamping assembly are arranged in bag clamping guide rod along first direction, first clamping assembly and second clamping assembly are connected with bag clamping linkage assembly, bag clamping motor is connected with bag clamping linkage assembly, first clamping assembly and second clamping assembly are equipped with more than two stations, displacement mechanism is located in rack, displacement mechanism is connected with first clamping assembly and second clamping assembly respectively, to drive first clamping assembly and second clamping assembly move along second direction, second direction is perpendicular to first direction.The bag clamping displacement device of the utility model can efficiently accurately move multiple packaging bags between different stations, and improve the work efficiency of packaging operation.

Description

Technical Field

[0001] This utility model relates to the field of material packaging technology, specifically to a bag clamping and shifting device. Background Technology

[0002] To improve packaging efficiency, existing packaging machines typically have multiple workstations operating simultaneously. A shifting device is used to transfer the packaging bags to different workstations, allowing the bags to sequentially pass through each station to complete the packaging process. However, existing shifting devices generally only have one clamping mechanism for shifting, resulting in low efficiency and slowing down the overall production cycle. Utility Model Content

[0003] The purpose of this invention is to provide a bag-clamping and shifting device, which aims to solve the problem of low working efficiency of existing shifting devices.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A bag shifting device is provided, comprising:

[0006] frame;

[0007] A bag clamping mechanism includes a bag clamping motor, a bag clamping linkage assembly, a bag clamping guide rod, a first clamping assembly, and a second clamping assembly. The two ends of the bag clamping guide rod extend along a first direction and are connected to the frame. The first clamping assembly and the second clamping assembly are arranged along the first direction on the bag clamping guide rod. Both the first clamping assembly and the second clamping assembly are connected to the bag clamping linkage assembly. The bag clamping motor is connected to the bag clamping linkage assembly to drive the first clamping assembly and the second clamping assembly to move closer to or further away from each other. Both the first clamping assembly and the second clamping assembly have two or more working stations.

[0008] A shifting mechanism is disposed on the frame and is connected to the first clamping assembly and the second clamping assembly respectively to drive the first clamping assembly and the second clamping assembly to move along a second direction, the second direction being perpendicular to the first direction.

[0009] Optionally, the first clamping assembly includes a first guide seat, a first sliding seat, a first empty bag clamping plate, and a first filling clamping plate. The first guide seat is slidably connected to the bag clamping guide rod and is connected to the bag clamping linkage assembly. The first sliding seat is slidably connected to the first guide seat. The shifting mechanism is connected to the first sliding seat to drive the first sliding seat to move along the second direction. The first empty bag clamping plate and the first filling clamping plate are arranged on the first sliding seat along the second direction.

[0010] Optionally, the second clamping assembly includes a second guide seat, a second sliding seat, a second empty bag clamping plate, and a second filling clamping plate. The second guide seat is slidably connected to the bag clamping guide rod and connected to the bag clamping linkage assembly. The second sliding seat is slidably connected to the second guide seat. The shifting mechanism is connected to the second sliding seat to drive the second sliding seat to move along the second direction. The second empty bag clamping plate and the second filling clamping plate are arranged on the second sliding seat along the second direction.

[0011] Optionally, the first clamping assembly further includes a first bag opening suction cup disposed on the first empty bag clamping plate; the second clamping assembly further includes a second bag opening suction cup disposed on the second empty bag clamping plate.

[0012] Optionally, the first clamping assembly further includes a first clamping support rod and a first bag body suction cup, the first clamping support rod being connected to the first empty bag clamping plate, and the first bag body suction cup being disposed on the first clamping support rod; the second clamping assembly further includes a second clamping support rod and a second bag body suction cup, the second clamping support rod being connected to the second empty bag clamping plate, and the second bag body suction cup being disposed on the second clamping support rod.

[0013] Optionally, the first clamping assembly further includes a first bag body limiting plate, which is disposed on the first clamping support rod; the second clamping assembly further includes a second bag body limiting plate, which is disposed on the second clamping support rod.

[0014] Optionally, the first clamping assembly further includes a first anti-spin bar, which is disposed on the first filling clamping plate and located on the side away from the first empty bag clamping plate; the second clamping assembly further includes a second anti-spin bar, which is disposed on the second filling clamping plate and located on the side away from the second empty bag clamping plate.

[0015] Optionally, the first clamping assembly further includes a first clamping pad, and both the first empty bag clamping plate and the first filling clamping plate are provided with the first clamping pad; the second clamping assembly further includes a second clamping pad, and both the second empty bag clamping plate and the second filling clamping plate are provided with the second clamping pad.

[0016] Optionally, the shifting mechanism includes a shifting motor and a shifting linkage component. The shifting motor is connected to the shifting linkage component, and the shifting linkage component is connected to the first sliding seat and the second sliding seat respectively, so as to drive the first sliding seat and the second sliding seat to move along the second direction.

[0017] Optionally, the shifting mechanism further includes an encoder, and the shifting linkage assembly includes a shifting shaft, a first shifting rocker arm, a second shifting rocker arm, a first shifting link, and a second shifting link. The shifting motor is mounted on the frame, the shifting shaft is rotatably connected to the frame, the encoder is connected to the shifting shaft, the shifting motor is connected to the shifting shaft, the first shifting rocker arm and the second shifting rocker arm are both connected to the shifting shaft, one end of the first shifting link is rotatably connected to the first shifting rocker arm via a spherical bearing, and the other end of the first shifting link is rotatably connected to the first sliding seat via a spherical bearing. One end of the second shifting link is rotatably connected to the second shifting rocker arm via a spherical bearing, and the other end of the second shifting link is rotatably connected to the second sliding seat via a spherical bearing.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] In the bag clamping and shifting device provided by this utility model, the frame provides a supporting foundation for the entire device. The bag clamping motor is connected to the first clamping component and the second clamping component through the bag clamping linkage component, which can drive the two components to move closer or further apart to clamp and release the packaging bag. The first clamping component and the second clamping component are each provided with two or more workstations, which can clamp multiple packaging bags at the same time. The shifting mechanism is located on the frame and, through connection with the first clamping component and the second clamping component, can realize the movement of multiple packaging bags in the second direction, thereby completing the shifting work. Through the coordinated work of these mechanisms, multiple packaging bags can be moved efficiently and accurately between different workstations, improving the work efficiency of packaging operations. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the bag-clamping and shifting device of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the bag-clamping and shifting device of this utility model from another angle.

[0023] Figure 3 This is a left view of the bag-clamping and shifting device of this utility model;

[0024] Figure 4 This is a front view of the bag-clamping and shifting device of this utility model.

[0025] In the diagram: 1. Frame; 2. Bag clamping mechanism; 21. Bag clamping motor; 22. Bag clamping linkage assembly; 221. Bag clamping linkage swing arm; 222. First bag clamping link; 223. Second bag clamping link; 224. Bag clamping shaft; 225. Bag clamping link structure; 23. Bag clamping guide rod; 24. First clamping assembly; 241. First guide seat; 242. First sliding seat; 243. First empty bag clamping plate; 244. First filling clamping plate; 245. First bag mouth suction cup; 246. First clamping support rod; 247. First bag body suction cup; 248. First bag body limiting plate; 249. First anti-swing bar; 2410 1. First clamping pad; 25. Second clamping assembly; 251. Second guide seat; 252. Second sliding seat; 253. Second empty bag clamping plate; 254. Second filling clamping plate; 255. Second bag mouth suction cup; 256. Second clamping support rod; 257. Second bag body suction cup; 258. Second bag body limiting plate; 259. Second anti-swing bar; 2510. Second clamping pad; 3. Shifting mechanism; 31. Shifting motor; 32. Encoder; 33. Shifting shaft; 34. First shifting rocker arm; 35. Second shifting rocker arm; 36. First shifting link; 37. Second shifting link; 38. Shifting reinforcing rod. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[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 with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0029] The following is combined Figures 1 to 4 This invention describes a bag-clamping and shifting device.

[0030] like Figures 1 to 4 As shown, this utility model provides a bag clamping and shifting device, including a frame 1, a bag clamping mechanism 2 and a shifting mechanism 3.

[0031] The bag clamping mechanism 2 includes a bag clamping motor 21, a bag clamping linkage assembly 22, a bag clamping guide rod 23, a first clamping assembly 24, and a second clamping assembly 25. The two ends of the bag clamping guide rod 23 extend along a first direction and are connected to the frame 1. The first clamping assembly 24 and the second clamping assembly 25 are arranged along the first direction on the bag clamping guide rod 23. Both the first clamping assembly 24 and the second clamping assembly 25 are connected to the bag clamping linkage assembly 22. The bag clamping motor 21 is connected to the bag clamping linkage assembly 22 to drive the first clamping assembly 24 and the second clamping assembly 25 to move closer to each other or further away from each other. Both the first clamping assembly 24 and the second clamping assembly 25 have two or more working positions.

[0032] Furthermore, the shifting mechanism 3 is disposed on the frame 1, and the shifting mechanism 3 is connected to the first clamping assembly 24 and the second clamping assembly 25 respectively, so as to drive the first clamping assembly 24 and the second clamping assembly 25 to move along the second direction, which is perpendicular to the first direction.

[0033] For ease of explanation, in this embodiment, each orientation is as follows: Figure 1 As shown, the first direction is the front-back direction, and the second direction is the left-right direction.

[0034] In the bag clamping and shifting device provided by this utility model, the frame 1 provides a supporting foundation for the entire device. The bag clamping motor 21 is connected to the first clamping component 24 and the second clamping component 25 through the bag clamping linkage component 22, which can drive the two components to move closer or further apart to clamp and release the packaging bag. The first clamping component 24 and the second clamping component 25 are each provided with two or more workstations, which can clamp multiple packaging bags at the same time. The shifting mechanism 3 is provided on the frame 1. By connecting with the first clamping component 24 and the second clamping component 25, it can realize the movement of multiple packaging bags in the second direction, thereby completing the shifting work. Through the coordinated work of these mechanisms, multiple packaging bags can be moved efficiently and accurately between different workstations, improving the work efficiency of packaging operations.

[0035] In some embodiments, the first clamping assembly 24 includes a first guide seat 241, a first sliding seat 242, a first empty bag clamping plate 243, and a first filling clamping plate 244. The first guide seat 241 is slidably connected to the bag clamping guide rod 23 and is connected to the bag clamping linkage assembly 22. The first sliding seat 242 is slidably connected to the first guide seat 241. The shifting mechanism 3 is connected to the first sliding seat 242 to drive the first sliding seat 242 to move along the second direction. The first empty bag clamping plate 243 and the first filling clamping plate 244 are arranged on the first sliding seat 242 along the second direction.

[0036] Specifically, the first guide seat 241 is slidably connected to the bag clamping guide rod 23, enabling stable back-and-forth movement. The bottom of the first guide seat 241 is provided with a first slider and a first slide rail extending in the left-right direction. The first sliding seat 242 is mounted on the first slider. The first sliding seat 242 not only serves as the mounting platform for the first empty bag clamping plate 243 and the first filling clamping plate 244, but is also driven by the shifting mechanism 3 to move precisely in the left-right direction. The first empty bag clamping plate 243 and the first filling clamping plate 244 are arranged on the first sliding seat 242 in the left-right direction. The first empty bag clamping plate 243 is located to the left of the first filling clamping plate 244. The first empty bag clamping plate 243 clamps the empty packaging bag to the filling station. At the same time, the first filling clamping plate 244 moves the filled packaging bag to another station on the right. One action completes the transfer between two stations, effectively improving work efficiency.

[0037] In some embodiments, the second clamping assembly 25 includes a second guide seat 251, a second sliding seat 252, a second empty bag clamping plate 253, and a second filling clamping plate 254. The second guide seat 251 is slidably connected to the bag clamping guide rod 23 and is connected to the bag clamping linkage assembly 22. The second sliding seat 252 is slidably connected to the second guide seat 251. The shifting mechanism 3 is connected to the second sliding seat 252 to drive the second sliding seat 252 to move along a second direction. The second empty bag clamping plate 253 and the second filling clamping plate 254 are arranged on the second sliding seat 252 along the second direction.

[0038] Specifically, the second guide seat 251 is slidably connected to the bag clamping guide rod 23, enabling stable back-and-forth movement. The bottom of the second guide seat 251 is provided with a second slider and a second slide rail extending in the left-right direction. The second sliding seat 252 is mounted on the second slider. The second sliding seat 252 not only serves as the mounting platform for the second empty bag clamping plate 253 and the second filling clamping plate 254, but is also driven by the shifting mechanism 3 to move precisely in the left-right direction. The second empty bag clamping plate 253 and the second filling clamping plate 254 are arranged in the left-right direction on the second sliding seat 252. The second empty bag clamping plate 253 is located to the left of the second filling clamping plate 254. The second empty bag clamping plate 253 clamps the empty packaging bag to the filling station. At the same time, the second filling clamping plate 254 moves the filled packaging bag to another station on the right. One action completes the transfer between two stations, effectively improving work efficiency.

[0039] In some embodiments, the first clamping assembly 24 further includes a first bag mouth suction cup 245 disposed on the first empty bag clamping plate 243; the second clamping assembly 25 further includes a second bag mouth suction cup 255 disposed on the second empty bag clamping plate 253.

[0040] Specifically, in the first clamping assembly 24, the first bag mouth suction cup 245 is used to fix the bag mouth of the empty bag, keeping it stable during machine operation and preventing the bag mouth from slipping during displacement. In the second clamping assembly 25, the second bag mouth suction cup 255 has a similar function to the first bag mouth suction cup 245, also to fix the bag mouth of the empty bag, but it is applied to the other side to ensure that the empty bag is subjected to uniform force on both sides during clamping, avoiding deformation or damage to the bag mouth. The first empty bag clamping plate 243 and the second empty bag clamping plate 255 are used to fix the bag mouth of the empty bag. The clamping plates 253 serve as bases for supporting the first bag mouth suction cup 245 and the second bag mouth suction cup 255, respectively, providing the necessary clamping force and stability to firmly clamp the empty bag. More specifically, by fixing the two sides of the empty bag with the first bag mouth suction cup 245 and the second bag mouth suction cup 255, and combining the stable support and clamping force provided by the first empty bag clamping plates 243 and the second empty bag clamping plates 253, the empty bag maintains accurate position and is not affected by external forces during subsequent relocation, ensuring the quality and efficiency of subsequent packaging.

[0041] In some embodiments, the first clamping assembly 24 further includes a first clamping support rod 246 and a first bag body suction cup 247, the first clamping support rod 246 being connected to the first empty bag clamping plate 243, and the first bag body suction cup 247 being disposed on the first clamping support rod 246; the second clamping assembly 25 further includes a second clamping support rod 256 and a second bag body suction cup 257, the second clamping support rod 256 being connected to the second empty bag clamping plate 253, and the second bag body suction cup 257 being disposed on the second clamping support rod 256.

[0042] Specifically, in this design, the various components of the first clamping assembly 24 work together to achieve precise gripping of empty bags. The first clamping support rod 246 supports and stabilizes the first bag suction cup 247, ensuring its stability during operation and preventing deformation or displacement due to external forces. The first bag suction cup 247 generates negative pressure to adsorb the empty bag, firmly fixing it to the first empty bag clamping plate 243 and preventing the empty bag from slipping or shifting during operation. Similarly, the second clamping support rod 256 in the second clamping assembly 25 also provides support and stability for the second bag suction cup 257, ensuring its structural stability. The second bag suction cup 257 generates negative pressure to adsorb the empty bag in the same way as the first bag suction cup 247, ensuring it is firmly fixed to the second empty bag clamping plate 253.

[0043] In some embodiments, the first clamping assembly 24 further includes a first bag body limiting plate 248, which is disposed on the first clamping support rod 246; the second clamping assembly 25 further includes a second bag body limiting plate 258, which is disposed on the second clamping support rod 256.

[0044] Specifically, in this design, the main function of the first bag body limiting plate 248 is to restrict and fix the position of the bag body, ensuring accurate positioning of the packaging bag in the first clamping assembly 24 after filling with materials. The second bag body limiting plate 258 plays a similar role, ensuring accurate positioning of the bag body in the second clamping assembly 25 and preventing loosening during the displacement process.

[0045] In some embodiments, the first clamping assembly 24 further includes a first anti-swing bar 249, which is disposed on the first filling clamping plate 244 and located on the side away from the first empty bag clamping plate 243; the second clamping assembly 25 further includes a second anti-swing bar 259, which is disposed on the second filling clamping plate 254 and located on the side away from the second empty bag clamping plate 253.

[0046] Specifically, the packaging bag after being filled with materials has a certain weight and a large inertia, and will shake during the relocation process. The first anti-swing bar 249 and the second anti-swing bar 259 are respectively provided on the first filling clamping plate 244 and the second filling clamping plate 254, and are located on the side away from the first empty bag clamping plate 243 and the second empty bag clamping plate 253. The function of the first anti-swing bar 249 and the second anti-swing bar 259 is to prevent the packaging bag after being filled with materials from being thrown out due to inertia during the relocation process, thereby ensuring the stability of the relocation process.

[0047] In some embodiments, the first clamping assembly 24 further includes a first clamping pad 2410, and both the first empty bag clamping plate 243 and the first filling clamping plate 244 are provided with the first clamping pad 2410; the second clamping assembly 25 further includes a second clamping pad 2510, and both the second empty bag clamping plate 253 and the second filling clamping plate 254 are provided with the second clamping pad 2510.

[0048] Specifically, the first clamping pad 2410 and the second clamping pad 2510 are used to increase the friction between the pad and the packaging bag, ensuring that the pad will not slip during clamping and improving the stability and reliability of clamping.

[0049] In some embodiments, the bag clamping linkage assembly 22 includes a bag clamping linkage swing rod 221, a first bag clamping link 222, a second bag clamping link 223, a bag clamping rotating shaft 224, and a bag clamping link structure 225. The bag clamping rotating shaft 224 is rotatably connected to the frame 1. The bag clamping motor 21 drives the bag clamping rotating shaft 224 to rotate through the bag clamping link structure 225. The middle part of the bag clamping linkage swing rod 221 is connected to the bag clamping rotating shaft 224. One end of the first bag clamping link 222 is rotatably connected to the bag clamping linkage swing rod 221, and the other end of the first bag clamping link 222 is rotatably connected to the first guide seat 241. One end of the second bag clamping link 223 is rotatably connected to the bag clamping linkage swing rod 221, and the other end of the second bag clamping link 223 is rotatably connected to the second guide seat 251.

[0050] Specifically, the bag-clamping linkage swing rod 221 is responsible for guiding the key movements of the entire clamping process, and achieves flexible movement of the overall structure by being hinged in the middle to the bag-clamping rotating shaft 224. The bag-clamping rotating shaft 224 is driven by the bag-clamping motor 21 through the bag-clamping connecting rod structure 225, thereby achieving periodic rotational movement. The first bag-clamping connecting rod 222 and the second bag-clamping connecting rod 223 are respectively connected at one end to the bag-clamping linkage swing rod 221, and rotatably connected at the other end to the first guide seat 241 and the second guide seat 251. They can move back and forth accordingly with the swing rod, thereby driving the first guide seat 241 and the second guide seat 251 to move closer or further apart, thereby realizing the opening and closing action of the first clamping component 24 and the second clamping component 25, thus completing the entire clamping process and improving work efficiency.

[0051] In some embodiments, the shifting mechanism 3 includes a shifting motor 31 and a shifting linkage component. The shifting motor 31 is connected to the shifting linkage component, and the shifting linkage component is connected to the first sliding seat 242 and the second sliding seat 252 respectively, so as to drive the first sliding seat 242 and the second sliding seat 252 to move along the second direction.

[0052] Specifically, the shift motor 31 is responsible for providing power to ensure that the shift mechanism 3 can start and run. The first sliding seat 242 and the second sliding seat 252 are connected together through the shift linkage component, which can move left and right in the same direction and speed to complete the shift operation, resulting in higher work efficiency.

[0053] In some embodiments, the shifting mechanism 3 further includes an encoder 32, and the shifting linkage assembly includes a shifting shaft 33, a first shifting rocker arm 34, a second shifting rocker arm 35, a first shifting link 36, a second shifting link 37, and a shifting reinforcing rod 38. A shifting motor 31 is mounted on the frame 1, the shifting shaft 33 is rotatably connected to the frame 1, the encoder 32 is connected to the shifting shaft 33, the shifting motor 31 is connected to the shifting shaft 33, and both the first shifting rocker arm 34 and the second shifting rocker arm 35 are connected to the shifting mechanism 33. The first shifting link 36 is rotatably connected to the first shifting rocker arm 34 via a spherical bearing, and the other end of the first shifting link 36 is rotatably connected to the first sliding seat 242 via a spherical bearing. One end of the second shifting link 37 is rotatably connected to the second shifting rocker arm 35 via a spherical bearing, and the other end of the second shifting link 37 is rotatably connected to the second sliding seat 252 via a spherical bearing. A shifting reinforcing rod 38 is connected between the first shifting rocker arm 34 and the second shifting rocker arm 35.

[0054] Specifically, the shifting shaft 33 is the axis of rotation. The shifting mechanism 3 drives the shifting shaft 33 to rotate through the shifting motor 31, causing the first shifting rocker arm 34 and the second shifting rocker arm 35 to swing accordingly. The first shifting link 36 and the second shifting link 37, supported by the joint bearing, convert the swing of the rocker arm into linear motion of the first sliding seat 242 and the second sliding seat 252 in the left and right directions. The first shifting link 36 and the second shifting link 37 are connected to the rocker arm and the sliding seat through the joint bearing, effectively transmitting the force from the rocker arm. Moreover, the joint bearing itself can also achieve universal rotation, which can better drive the first sliding seat 242 and the second sliding seat 252 to move left and right. This allows the entire shifting mechanism 3 to precisely control the position changes of the first sliding seat 242 and the second sliding seat 252, achieving the requirement of precise shifting.

[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A bag shifting device, characterized in that, include: Rack (1); The bag clamping mechanism (2) includes a bag clamping motor (21), a bag clamping linkage assembly (22), a bag clamping guide rod (23), a first clamping assembly (24), and a second clamping assembly (25). The two ends of the bag clamping guide rod (23) extend along a first direction and are connected to the frame (1). The first clamping assembly (24) and the second clamping assembly (25) are arranged along the first direction on the bag clamping guide rod (23). The first clamping assembly (24) and the second clamping assembly (25) are both connected to the bag clamping linkage assembly (22). The bag clamping motor (21) is connected to the bag clamping linkage assembly (22) to drive the first clamping assembly (24) and the second clamping assembly (25) to move closer to each other or further away from each other. The first clamping assembly (24) and the second clamping assembly (25) are each provided with two or more workstations. A shifting mechanism (3) is provided on the frame (1). The shifting mechanism (3) is connected to the first clamping assembly (24) and the second clamping assembly (25) respectively, so as to drive the first clamping assembly (24) and the second clamping assembly (25) to move along a second direction, which is perpendicular to the first direction.

2. The bag shifting device according to claim 1, characterized in that, The first clamping assembly (24) includes a first guide seat (241), a first sliding seat (242), a first empty bag clamping plate (243), and a first filling clamping plate (244). The first guide seat (241) is slidably connected to the bag clamping guide rod (23). The first guide seat (241) is connected to the bag clamping linkage assembly (22). The first sliding seat (242) is slidably connected to the first guide seat (241). The shifting mechanism (3) is connected to the first sliding seat (242) to drive the first sliding seat (242) to move along the second direction. The first empty bag clamping plate (243) and the first filling clamping plate (244) are arranged on the first sliding seat (242) along the second direction.

3. The bag shifting device according to claim 2, characterized in that, The second clamping assembly (25) includes a second guide seat (251), a second sliding seat (252), a second empty bag clamping plate (253), and a second filling clamping plate (254). The second guide seat (251) is slidably connected to the bag clamping guide rod (23). The second guide seat (251) is connected to the bag clamping linkage assembly (22). The second sliding seat (252) is slidably connected to the second guide seat (251). The shifting mechanism (3) is connected to the second sliding seat (252) to drive the second sliding seat (252) to move along the second direction. The second empty bag clamping plate (253) and the second filling clamping plate (254) are arranged on the second sliding seat (252) along the second direction.

4. The bag shifting device according to claim 3, characterized in that, The first clamping assembly (24) further includes a first bag mouth suction cup (245), which is disposed on the first empty bag clamping plate (243); the second clamping assembly (25) further includes a second bag mouth suction cup (255), which is disposed on the second empty bag clamping plate (253).

5. The bag shifting device according to claim 4, characterized in that, The first clamping assembly (24) further includes a first clamping support rod (246) and a first bag body suction cup (247). The first clamping support rod (246) is connected to the first empty bag clamping plate (243), and the first bag body suction cup (247) is disposed on the first clamping support rod (246). The second clamping assembly (25) further includes a second clamping support rod (256) and a second bag body suction cup (257). The second clamping support rod (256) is connected to the second empty bag clamping plate (253), and the second bag body suction cup (257) is disposed on the second clamping support rod (256).

6. The bag shifting device according to claim 5, characterized in that, The first clamping assembly (24) further includes a first bag body limiting plate (248), which is disposed on the first clamping support rod (246); the second clamping assembly (25) further includes a second bag body limiting plate (258), which is disposed on the second clamping support rod (256).

7. The bag shifting device according to claim 6, characterized in that, The first clamping assembly (24) further includes a first anti-spin bar (249), which is disposed on the first filling clamping plate (244) and located on the side away from the first empty bag clamping plate (243); the second clamping assembly (25) further includes a second anti-spin bar (259), which is disposed on the second filling clamping plate (254) and located on the side away from the second empty bag clamping plate (253).

8. The bag shifting device according to claim 7, characterized in that, The first clamping assembly (24) further includes a first clamping pad (2410), and the first empty bag clamping plate (243) and the first filling clamping plate (244) are both provided with the first clamping pad (2410); the second clamping assembly (25) further includes a second clamping pad (2510), and the second empty bag clamping plate (253) and the second filling clamping plate (254) are both provided with the second clamping pad (2510).

9. The bag shifting device according to claim 3, characterized in that, The shifting mechanism (3) includes a shifting motor (31) and a shifting linkage component. The shifting motor (31) is connected to the shifting linkage component, and the shifting linkage component is connected to the first sliding seat (242) and the second sliding seat (252) respectively, so as to drive the first sliding seat (242) and the second sliding seat (252) to move along the second direction.

10. The bag shifting device according to claim 9, characterized in that, The shifting mechanism (3) further includes an encoder (32). The shifting linkage assembly includes a shifting shaft (33), a first shifting rocker arm (34), a second shifting rocker arm (35), a first shifting link (36), and a second shifting link (37). The shifting motor (31) is mounted on the frame (1). The shifting shaft (33) is rotatably connected to the frame (1). The shifting motor (31) is connected to the shifting shaft (33). The encoder (32) is connected to the shifting shaft (33). The first shifting rocker arm (34) Both the first displacement rocker arm (34) and the second displacement rocker arm (35) are connected to the displacement shaft (33). One end of the first displacement link (36) is rotatably connected to the first displacement rocker arm (34) through a joint bearing. The other end of the first displacement link (36) is rotatably connected to the first sliding seat (242) through a joint bearing. One end of the second displacement link (37) is rotatably connected to the second displacement rocker arm (35) through a joint bearing. The other end of the second displacement link (37) is rotatably connected to the second sliding seat (252) through a joint bearing.

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