Bag opening device and bagging machine

Abstract

The invention belongs to the technical field of bag opening equipment, and particularly discloses a bag opening device which is characterized in that the bag opening device comprises a box body, a first adsorption mechanism, at least one door body and a bag supply mechanism, and the box body is provided with an internal space with an opening in the top face; the first adsorption mechanism is located above the opening, and the first adsorption mechanism is movably arranged on the box body through a first lifting mechanism; the at least one door body is movably arranged at the opening of the box body through an opening and closing driving mechanism, and a second adsorption mechanism is arranged on the door body; the bag supply mechanism is located below the opening, so that a consumer does not need to prepare a bag by himself, the bag can be automatically opened, shoes can be conveniently put into the bag to be packaged, and the use experience of a user is improved.

Description

Technical Field

[0001] This invention relates to the field of bag opening equipment technology, and particularly to a bag opening device and a bag filling machine. Background Technology

[0002] Shared shoe washing machines are devices that replace manual shoe washing, greatly simplifying people's daily lives. Similar to shared washing machines, they achieve efficient utilization of the equipment through sharing. Currently, shared shoe washing machines on the market only have washing, spin-drying, and drying functions; after drying, consumers take their shoes away.

[0003] However, the dried shoes are not packaged in bags. Currently, consumers need to bring their own bags, put the dried shoes in the bags, and take them away, which makes the experience of the shared shoe washing machine unpleasant. Therefore, it is necessary to develop a bag opening device and a bag filling machine. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, the present invention provides a bag opening device and a bag filling machine, which solves the problem that current shoe washing machines require consumers to bring their own bags and open them, resulting in a poor user experience.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a bag opening device, comprising:

[0006] The box-shaped structure has an open interior space at the top.

[0007] The first adsorption mechanism is located above the opening, and the first adsorption mechanism is movably mounted on the box body via the first lifting mechanism;

[0008] At least one door is provided, which is movably disposed at the opening of the box via an opening and closing drive mechanism, and the door is provided with a second suction mechanism.

[0009] A bag-feeding mechanism is located below the opening.

[0010] As a further embodiment, the door is provided in two parts, which are arranged opposite each other at the opening, and the two doors together form a shelf.

[0011] As a further solution, fan-shaped guide holes are provided on both the left and right side panels of the enclosure.

[0012] One side of each of the two doors is rotatably connected to the opening of the box body;

[0013] The opening and closing drive mechanism is provided in two sets, which correspond to the side plates on the left and right sides of the box body respectively. The opening and closing drive mechanism includes a first lifting drive component and a push block. The first lifting drive component is disposed on the side plate, and the push block is movably disposed on the side plate. The output end of the first lifting drive component is connected to the push block in a transmission manner. The push block has a movable hole. The other side of the two doors is provided with a guide shaft. The two ends of the two guide shafts pass through the guide hole and the movable hole respectively.

[0014] As a further embodiment, the guide shafts of the two doors pass through two movable holes of the same push block;

[0015] Both ends of the guide shaft are provided with end caps. The end cap at each end of the guide shaft is located outside the push block, and the diameter of the end cap is larger than the diameter of the movable hole.

[0016] Both ends of the guide shaft are equipped with pulleys, and the pulleys at each end of the guide shaft are located in the movable hole.

[0017] As a further embodiment, the first adsorption mechanism includes a connecting plate and a plurality of first suction cups distributed on the bottom surface of the connecting plate, wherein the connecting plate is movably mounted on the box body via the first lifting mechanism.

[0018] As a further embodiment, the first lifting mechanism includes a base plate, a cantilever, a first lead screw, and a first servo motor. The base plate is parallel to the rear side plate of the housing and fixed to the rear side plate. One end of the cantilever is connected to the connecting plate through multiple connecting rods, and the other end of the cantilever passes through the base plate and is movably connected to the base plate through a sliding mechanism. The first servo motor is mounted on the base plate, and the first lead screw is rotatably connected to the base plate. One end of the first lead screw is drivenly connected to the output end of the first servo motor, and the first lead screw passes through the cantilever and is drivenly connected to the first lead screw nut on the cantilever.

[0019] As a further solution, a bag-holding window is provided on the side panel at the front of the box.

[0020] The bag supply mechanism includes a bag placement plate and a second lifting mechanism that drives the bag placement plate to move up and down within the internal space.

[0021] As a further embodiment, the second lifting mechanism includes a second servo motor and a second lead screw. The second servo motor is equipped with a mounting plate, which is connected to the bag-holding plate through multiple guide rods. The multiple guide rods are movably engaged with linear bearings on the bottom plate of the box. One end of the second lead screw is drivenly connected to the output end of the second servo motor, and the other end of the second lead screw is rotatably connected to the bag-holding plate. The second lead screw passes through the bottom plate and is drivenly connected to the second lead screw nut on the bottom plate.

[0022] The base plate is provided with a plurality of positioning rods, which pass through the first clearance hole on the bag plate;

[0023] The bag-holding plate is provided with limiting rods on both sides, and the bottom ends of the limiting rods on both sides are fixed to the base plate.

[0024] As a further embodiment, the second adsorption mechanism includes a second lifting drive and a second suction cup. The second lifting drive is disposed on the bottom surface of the door body, and the second suction cup is disposed at the output end of the second lifting drive. A second clearance hole is provided on the door body to cooperate with the second suction cup.

[0025] In addition, the present invention also provides a bagging machine, including the bag opening device described above, and further comprising:

[0026] frame;

[0027] The bag opening device is mounted on the frame, and the frame has a retrieval window on its side, which is close to the storage table.

[0028] A multi-axis robotic arm is mounted on a frame and located on one side of the bag-opening device, and the output end of the multi-axis robotic arm is equipped with a gripper.

[0029] The beneficial effects of this invention are as follows: In this embodiment, the door is opened by the opening and closing drive mechanism, and the first suction mechanism is lowered by the first lifting mechanism, allowing the first suction mechanism to pass through the opening and descend into the interior space. A bag is provided to the first suction mechanism by the bag supply mechanism, so that the consumer does not need to bring their own bag. The first suction mechanism adsorbs the top surface of the bag, and then the first lifting mechanism drives the first suction mechanism and the bag to rise above the opening. The opening and closing drive mechanism drives the door to close the opening, and the first lifting mechanism drives the first suction mechanism and the bag to descend, so that the second suction mechanism on the door can adsorb the bottom surface of the bag. The first lifting mechanism then drives the first suction mechanism to rise, thereby automatically opening the bag, making it easy to put shoes into the bag for packaging, thus improving the user experience. Attached Figure Description

[0030] Figure 1 The three-dimensional representation of Embodiment 1 of the present invention Figure 1 ;

[0031] Figure 2 The three-dimensional representation of Embodiment 1 of the present invention Figure 2 ;

[0032] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0033] Figure 4 This is a left view of Embodiment 1 of the present invention;

[0034] Figure 5The three-dimensional representation of Embodiment 1 of the present invention Figure 3 .

[0035] Figure 6 The three-dimensional representation of Embodiment 1 of the present invention Figure 4 ;

[0036] Figure 7 The three-dimensional form of the door in Embodiment 1 of the present invention Figure 1 ;

[0037] Figure 8 The three-dimensional form of the door in Embodiment 1 of the present invention Figure 2 ;

[0038] Figure 9 This is a perspective view of the second adsorption mechanism in Embodiment 1 of the present invention;

[0039] Figure 10 The three-dimensional representation of Embodiment 2 of the present invention Figure 1 .

[0040] Figure 11 The three-dimensional representation of Embodiment 2 of the present invention Figure 2 ;

[0041] Figure 12 This is a schematic diagram of the bag structure in Embodiments 1 and 2 of the present invention.

[0042] In the picture,

[0043] 1-Box body, 11-Open opening, 12-Internal space, 13-Side panel, 131-Guide hole, 132-Bag placement window, 14-Bottom plate, 141-Positioning rod, 142-Limiting rod;

[0044] 2-First adsorption mechanism, 21-Connecting plate, 22-First suction cup;

[0045] 3-First lifting mechanism, 31-Base plate, 32-Cantilever, 33-First lead screw, 34-First servo motor, 35-Connecting rod, 36-First lead screw nut;

[0046] 4-Door body, 41-Second clearance hole, 42-Showcase;

[0047] 5-Opening and closing drive mechanism, 51-First lifting drive component, 52-Push block, 521-Modible hole, 53-Guide shaft, 531-End cover, 532-Pulley;

[0048] 6-Second adsorption mechanism, 61-Second lifting drive component, 62-Second suction cup;

[0049] 7-Bag feeding mechanism, 71-Bag placement plate, 711-First clearance hole, 72-Second lifting mechanism, 721-Second servo motor, 722-Mounting plate, 723-Guide rod, 724-Linear bearing, 725-Second lead screw, 726-Second lead screw nut;

[0050] 8-Rack, 81-Item retrieval window;

[0051] 9 - Multi-axis robotic arm; 91 - Gripper;

[0052] 10 - Bag, 101 - Handle opening. Detailed Implementation

[0053] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] Example 1

[0055] As attached Figure 1 As shown, this embodiment provides a bag opening device, including a box body 1, a first adsorption mechanism 2, at least one door body 4, and a bag supply mechanism 7.

[0056] Among them, as attached Figure 3 As shown, the box 1 has an internal space 12 with an opening 11 on the top surface.

[0057] As attached Figure 1 As shown, the first adsorption mechanism 2 is located above the opening 11 and is movably mounted on the box body 1 via the first lifting mechanism 3. Specifically, the first adsorption mechanism 2 is used to adsorb the top surface of the bag 10. The first lifting mechanism 3 drives the first adsorption mechanism 2 to rise and fall, allowing the first adsorption mechanism 2 to pass through the opening 11 and descend into the internal space 12.

[0058] As attached Figure 1-2 As shown, at least one door 4 is movably mounted at the opening 11 of the box 1 via an opening and closing drive mechanism 5, and a second adsorption mechanism 6 is provided on the door 4. Specifically, the opening and closing drive mechanism 5 drives the door 4 to open and close the opening 11. The second adsorption mechanism 6 is used to adsorb the bottom surface of the bag 10. The first adsorption mechanism 2 and the second adsorption mechanism 6 cooperate to open the opening of the bag 10, making it easy to put shoes into the bag 10 through the opening.

[0059] As attached Figure 2-3 As shown, the bag supply mechanism 7 provides a bag 10 to the first adsorption mechanism 2, and the bag supply mechanism 7 is located below the opening 11, which facilitates the first adsorption mechanism 2 to adsorb the bag 10.

[0060] In this embodiment, the door 4 is opened by the opening and closing drive mechanism 5, and the first suction mechanism 2 is lowered by the first lifting mechanism 3, allowing the first suction mechanism 2 to pass through the opening 11 and descend into the internal space 12. The bag supply mechanism 7 provides a bag 10 to the first suction mechanism 2, so that the consumer does not need to bring their own bag 10. The first suction mechanism 2 adsorbs the top surface of the bag 10. Then, the first lifting mechanism 3 drives the first suction mechanism 2 and the bag 10 to rise above the opening 11. The opening and closing drive mechanism 5 drives the door 4 to close the opening 11. The first lifting mechanism 3 drives the first suction mechanism 2 and the bag 10 to descend, so that the second suction mechanism 6 on the door 4 can adsorb the bottom surface of the bag 10. The first lifting mechanism 3 then drives the first suction mechanism 2 to rise, thereby automatically opening the bag 10, making it easy to put shoes into the bag 10 for packaging, thus improving the user experience.

[0061] Furthermore, existing technologies that use independently designed bag supply and opening devices occupy a significant amount of space, failing to meet the requirements of commercial shared equipment for compact and aesthetically pleasing designs (small footprint and low space cost). In this embodiment, the bag supply mechanism 7 is integrated into the bag opening device comprised of the first adsorption mechanism 2, the first lifting mechanism 3, and the second adsorption mechanism 6, which greatly reduces the space required.

[0062] In some implementation schemes, such as the appendix Figure 1 , 4 As shown, there are two doors 4, which open opposite each other at the opening 11. The advantage of this opposite arrangement is that it shortens the driving stroke of the opening and closing drive mechanism 5, thereby reducing the space occupied by the opening and closing drive mechanism 5 and making it more aesthetically pleasing. When the two doors 4 are opened, the opening 11 is opened; when the two doors 4 are closed, the opening 11 is closed. After the two doors 4 are closed, they come together to form a shelf 42, allowing the bag 10 containing shoes to be placed on the shelf 42. In this way, the first lifting mechanism 3 can drive the first suction mechanism 2 to rise, making it easy to remove the bag 10 containing shoes.

[0063] In the above-mentioned scheme, as shown in the appendix Figure 3As shown, fan-shaped guide holes 131 are provided on the side plates 13 on both sides of the box body 1. There is a pair of guide holes 131 on the same side plate 13, corresponding to the two doors 4 that open in opposite directions. One side of each of the two doors 4 is rotatably connected to the opening 11 of the box body 1. There are two sets of opening and closing drive mechanisms 5, which correspond to the side plates 13 on the left and right sides of the box body 1, respectively. The opening and closing drive mechanism 5 includes a first lifting drive component 51 and a push block 52. The first lifting drive component 51 is installed and fixed on the side plate 13, and the push block 52 is movably disposed on the side plate 13. Specifically, guide grooves are provided on both sides of the side plate 13, and the two ends of the push block 52 are slidably disposed in the guide grooves on both sides, thereby limiting the push block 52 in the left and right directions and guiding the push block 52 in the up and down directions. The output end of the first lifting drive 51 is connected to the push block 52. The push block 52 has a movable hole 521, which is strip-shaped and extends along the front-back direction. Guide shafts 53 are provided on the other side of each of the two door bodies 4. The two ends of the guide shafts 53 pass through the guide hole 131 and the movable hole 521 respectively. Specifically, the first lifting drive 51 can be a cylinder. The first lifting drive 51 drives the push block 52 to rise, and the push block 52 pushes the guide shaft 53. The guide shaft 53 engages with the guide hole 131, thereby rotating the two door bodies 4 and causing them to close from both sides of the opening 11 towards the middle. During this process, the guide shaft 53 engages with the movable hole 521, moving from one end of the movable hole 521 towards the middle of the movable hole 521. The first lifting drive 51 then drives the push block 52 to descend, causing the two door bodies 4 to open from the middle of the opening 11 to both sides.

[0064] It is known that the first lifting drive component 51 can also be selected from other options, such as a servo motor, as long as it can drive the push block 52 to lift.

[0065] Further details are attached. Figure 3 As shown, the guide shafts 53 of the two door bodies 4 pass through the two movable holes 521 of the same push block 52, so that when the first lifting drive 51 drives the push block 52, the two door bodies 4 open and close synchronously.

[0066] Furthermore, as attached Figure 3 As shown, both ends of the guide shaft 53 are provided with end caps 531. The end cap 531 at each end of the guide shaft 53 is located outside the push block 52, and the diameter of the end cap 531 is larger than the diameter of the movable hole 521. The end cap 531 serves as a limit, thereby confining both ends of the guide shaft 53 within the guide hole 131 and the movable hole 521, preventing the guide shaft 53 from detaching. At the same time, both ends of the guide shaft 53 are provided with pulleys 532. The pulleys 532 at each end of the guide shaft 53 are located within the movable hole 521. The pulleys 532 serve to reduce frictional resistance, thereby making the opening and closing of the two door bodies 4 smoother.

[0067] In the above-mentioned scheme, as shown in the appendix Figure 1 As shown, the first adsorption mechanism 2 includes a connecting plate 21 and a plurality of first suction cups 22 distributed on the bottom surface of the connecting plate 21. The connecting plate 21 is movably mounted on the box 1 via a first lifting mechanism 3. Optionally, the plurality of first suction cups 22 are distributed at the four corners of the connecting plate 21, and the plurality of first suction cups 22 are connected into one unit by the connecting plate 21, so that they can adsorb the same bag 10 together.

[0068] Among them, as attached Figure 5 As shown, the first lifting mechanism 3 includes a base plate 31, a cantilever 32, a first lead screw 33, and a first servo motor 34. The base plate 31 is parallel to and fixed to the rear side plate 13 of the housing 1. One end of the cantilever 32 is connected to the connecting plate 21 via multiple connecting rods 5, and the other end of the cantilever 32 passes through the base plate 31 and is movably connected to the base plate 31 via a sliding mechanism. The first servo motor 34 is mounted on the base plate 31, and the first lead screw 33 is rotatably connected to the base plate 31. One end of the first lead screw 33 is driven to the output end of the first servo motor 34, and the first lead screw 33 passes through the cantilever 32 and is driven to the first lead screw nut 36 on the cantilever 32. Specifically, the sliding mechanism is a conventional slider and slide rail sliding mechanism, which is conventional prior art and will not be described in detail. The first servo motor 34 drives the cantilever 32 to rise and fall on the base plate 31, thereby driving the first adsorption mechanism 2 to rise and fall.

[0069] It is worth mentioning that, as shown in the attached document Figure 6 As shown, the side panel 13 on the front side of the box 1 has a bag placement window 132. When the bag supply mechanism 7 has finished supplying the bags 10, a whole stack of bags 10 can be supplied again through the bag placement window 132.

[0070] In some embodiments, the bag supply mechanism 7 described above is specifically as follows:

[0071] As attached Figure 2-3As shown, the bag supply mechanism 7 includes a bag-holding plate 71 and a second lifting mechanism 72 that drives the bag-holding plate 71 to rise and fall within the internal space 12. The bag-holding plate 71 is used to hold stacks of bags 10. Specifically, the second lifting mechanism 72 includes a second servo motor 721 and a second lead screw 725. The second servo motor 721 is equipped with a mounting plate 722, which is connected to the bag-holding plate 71 via multiple guide rods 723. The multiple guide rods 723 are movably engaged with linear bearings 724 on the bottom plate 14 of the housing 1, providing stability and guidance. One end of the second lead screw 725 is drivenly connected to the output end of the second servo motor 721, and the other end of the second lead screw 725 is rotatably connected to the bag-holding plate 71. The second lead screw 725 passes through the bottom plate 14 and is drivenly connected to a second lead screw nut 726 on the bottom plate 14. The second servo motor 721 drives the second lead screw 725, which, in conjunction with the second lead screw nut 726, drives the bag-holding plate 71 to rise and fall within the internal space 12 (the second servo motor 721 and the second lead screw 725 rise and fall synchronously). As the number of bags 10 on the bag-holding plate 71 gradually decreases during the feeding process, the second servo motor 721 drives the bag-holding plate 71 to rise gradually within the internal space 12, ensuring that the first adsorption mechanism 2 has a consistent lifting and lowering stroke each time it adsorbs bags 10, making the adsorption of bags 10 by the first adsorption mechanism 2 more accurate. After the bags 10 on the bag-holding plate 71 are empty, the second servo motor 721 drives the bag-holding plate 71 to fall, and a new stack of bags 10 can be provided through the bag-dispensing window 132.

[0072] It is worth noting that, as shown in the attached document... Figure 1 , 6 As shown in Figure 12, the base plate 14 is provided with several positioning rods 141. The positioning rods 141 pass through the first clearance holes 711 on the bag holding plate 71, allowing the handle 101 of the bag 10 to be fitted onto the positioning rods 141, thereby positioning one end of the bag 10 and preventing misalignment of the handles 101 of the entire stack of bags 10. Simultaneously, when the first adsorption mechanism 2 adsorbs the first bag 10, the second bag 10 remains stationary due to the friction between the bag 10 and the positioning rods 141, preventing it from being adsorbed along with the first bag 10. Furthermore, the bag holding plate 71 is provided with limiting rods 142 on both sides, with the bottom ends of the limiting rods 142 fixed to the base plate 14, thereby limiting the bag 10 on the bag holding plate 71 and ensuring that the bag 10 is accurately adsorbed by the first adsorption mechanism 2.

[0073] It should be noted that, as shown in the attached document... Figure 7-9As shown, the second adsorption mechanism 6 includes a second lifting drive 61 and a second suction cup 62. The second lifting drive 61 is fixed to the bottom surface of the door body 4, and the second suction cup 62 is fixed to the output end of the second lifting drive 61 via a connecting piece. The door body 4 has a second clearance hole 41 for cooperating with the second suction cup 62. Specifically, the second adsorption mechanism 6 can be a cylinder. When it is necessary to open the bag, the second lifting drive 61 drives the second suction cup 62 to pass through the second clearance hole 41 and rise above the door body 4, thereby cooperating with the first suction cup 22 to adsorb both sides of the bag 10 and open the bag 10. After the shoes are put into the bag 10, the second lifting drive 61 drives the second suction cup 62 to descend from the second clearance hole 41, so that the shelf 42 formed by the two door bodies 4 remains flat, making it easy to remove the bag 10 and preventing the second suction cup 62 from hooking onto the bag 10. It is worth mentioning that the second clearance hole 41 on the door 4 is close to the handle opening 101, which makes it easier for the first suction cup 22 and the second suction cup 62 to open the bag opening of the bag 10.

[0074] Example 2

[0075] As attached Figure 10-11 As shown, this embodiment provides a bagging machine, including a bag opening device as described in Embodiment 1 above, and further including:

[0076] Rack 8;

[0077] The bag opening device is installed on the frame 8, and the frame 8 has a retrieval window 81 on its side, which is close to the storage table 42.

[0078] A multi-axis robotic arm 9 is mounted on the frame 8 and located on one side of the bag opening device, and the output end of the multi-axis robotic arm 9 is provided with a clamp 91.

[0079] The specific workflow is as follows: After the first adsorption mechanism 2 and the second adsorption mechanism 6 open the bag 10, the gripper 91 of the multi-axis robotic arm 9 picks up the shoe and places it into the bag 10. The bag 10 then rests on the shelf 42, and the consumer can directly take the bag containing the shoes from the retrieval window 81, completing the entire shoe washing process. Shoes packaged in bags 10 avoid the inconvenience and embarrassment of consumers walking around with the shoes directly, thus improving the consumer experience.

[0080] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. An opening device, characterized by: The utility model relates to a kind of bag opening device, including: Box (1), with the internal space (12) of top opening (11); First suction mechanism (2) is located in the upper of opening (11), and the first suction mechanism (2) is movably arranged on the box (1) by first lifting mechanism (3); At least one door body (4), the door body (4) is movably arranged at the opening (11) of the box (1) by opening and closing drive mechanism (5), and second suction mechanism (6) is provided on door body (4); Bag mechanism (7) is located below the opening (11).

2. An apparatus for opening a bag according to claim 1, wherein: The door body (4) is provided with two, and the two door body (4) is oppositely arranged at opening (11), and the two door body (4) is closed to form the goods table (42).

3. The bag opening device of claim 2, wherein: The side plate (13) on the left and right sides of the box (1) is provided with a fan-shaped guide hole (131); One side of the two door body (4) is rotatably connected at the opening (11) of the box (1); The opening and closing drive mechanism (5) is provided with two groups, and the two groups of opening and closing drive mechanism (5) are correspondingly arranged on the side plate (13) on the left and right sides of the box (1), and the opening and closing drive mechanism (5) includes a first lifting drive (51) and a push block (52), the first lifting drive (51) is arranged on the side plate (13), the push block (52) is movably arranged on the side plate (13), and the output end of the first lifting drive (51) is in transmission connection with the push block (52), the push block (52) is provided with a movable hole (521), and the other side of the two door body (4) is provided with a guide shaft (53), and the two ends of the two guide shafts (53) pass through the guide hole (131) and the movable hole (521) in sequence.

4. An apparatus for opening a bag according to claim 3, wherein: The guide shaft (53) of the two door body (4) passes through the two movable holes (521) of the same push block (52) respectively; The two ends of the guide shaft (53) are provided with end covers (531), and the end cover (531) on each end of the guide shaft (53) is located on the outside of the push block (52), and the diameter of the end cover (531) is greater than the diameter of the movable hole (521); The two ends of the guide shaft (53) are provided with pulleys (532), and the pulley (532) on each end of the guide shaft (53) is located in the movable hole (521).

5. An apparatus for opening a bag according to claim 1, wherein: The first suction mechanism (2) includes a connecting plate (21) and a plurality of first suction cups (22) distributed on the bottom surface of the connecting plate (21), and the connecting plate (21) is movably arranged on the box (1) by the first lifting mechanism (3).

6. An apparatus for opening a bag according to claim 5, wherein: The first lifting mechanism (3) comprises a base plate (31), a cantilever (32), a first lead screw (33) and a first servo motor (34), the base plate (31) is parallel to the rear side plate (13) of the box body (1) and is fixed on the rear side plate (13), one end of the cantilever (32) is connected with the connecting plate (21) through a plurality of connecting rods (5), the other end of the cantilever (32) passes through the base plate (31) and is movably connected with the base plate (31) through a sliding mechanism, the first servo motor (34) is installed on the base plate (31), the first lead screw (33) is rotatably connected with the base plate (31), one end of the first lead screw (33) is in transmission connection with the output end of the first servo motor (34), and the first lead screw (33) passes through the cantilever (32) and is in transmission connection with the first lead screw nut (36) on the cantilever (32).

7. The bag opening device according to claim 1, characterized in that: The side plate (13) of the front side of the box body (1) is provided with a bag placing window (132); The bag supplying mechanism (7) comprises a bag placing plate (71) and a second lifting mechanism (72) for driving the bag placing plate (71) to lift in the internal space (12).

8. The bag opening device according to claim 7, characterized in that: The second lifting mechanism (72) comprises a second servo motor (721) and a second lead screw (725), the second servo motor (721) is provided with a mounting plate (722), the mounting plate (722) is connected with the bag placing plate (71) through a plurality of guide rods (723), the plurality of guide rods (723) are movably matched with the linear bearings (724) on the bottom plate (14) of the box body (1), one end of the second lead screw (725) is in transmission connection with the output end of the second servo motor (721), the other end of the second lead screw (725) is rotatably connected with the bag placing plate (71), and the second lead screw (725) passes through the bottom plate (14) and is in transmission connection with the second lead screw nut (726) on the bottom plate (14); A plurality of positioning rods (141) are arranged on the bottom plate (14), and the positioning rods (141) pass through the first avoiding holes (711) on the bag placing plate (71); Limit rods (142) are arranged on the two sides of the bag placing plate (71), and the bottom ends of the limit rods (142) on the two sides are fixed on the bottom plate (14).

9. An apparatus for opening a bag according to claim 1, wherein: The second suction mechanism (6) comprises a second lifting driving member (61) and a second suction disc (62), the second lifting driving member (61) is arranged on the bottom surface of the door body (4), the second suction disc (62) is arranged on the output end of the second lifting driving member (61), and the door body (4) is provided with a second avoiding hole (41) matched with the second suction disc (62).

10. A bagging machine characterized by: The bag opening device comprises the bag opening device according to any one of claims 2-4, and further comprises: A rack (8); The bag opening device is mounted on the rack (8), and a taking window (81) is arranged on the side surface of the rack (8), and the taking window (81) is close to the object placing table (42). A multi-axis mechanical arm (9) is installed on the rack (8) and located on one side of the bag opening device, and the output end of the multi-axis mechanical arm (9) is provided with a clamp (91).

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