Automatic bale breaker

Abstract

The utility model provides an automatic bale breaker. The automatic bale breaker comprises a bale breaking box body, a conveying mechanism used for guiding and conveying packaging bags to the bale breaking box body, and a bag folding mechanism arranged on the side, away from the conveying mechanism, of the bale breaking box body. The conveying mechanism comprises a fixed conveying frame body connected with the unpacking box body and an adjusting conveying frame body rotationally installed on one side of the fixed conveying frame body so that the position of the adjusting conveying frame body can be changed to correspond to a packing bag unloading point. The adjusting motor controls the pulley to rotate, the adjusting conveying frame body rotates along the rotating seat, and the side, away from the fixed conveying frame body, of the adjusting conveying frame body abuts against a truck unloading point or a packaging bag stacking point, so that workers can conveniently place packaging bags on the conveying mechanism; and a shaping limiting assembly for adjusting the position of the packaging bag is further arranged on the fixed conveying frame body, so that the clamping conveyors symmetrically arranged on the two sides are used for clamping the two sides of the packaging bag, the packaging bag is prevented from deviating on the fixed conveying frame body, and accurate butt joint of the packaging bag and the unpacking box body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of package unpacking machines, in particular to an automatic package unpacking machine. Background Art

[0002] Powder particles are generally packed in packaging bags. During the supply process, trucks will transport the packaging bags to designated locations. Personnel will carry the packaging bags to the conveyor in turn, and then transport them to the corresponding positions for stacking through the conveyor. When the packaging bags are placed, they need to be lifted by a forklift, and then the packaging bags are cut open to allow the powder to fall into the bin. There are also methods that use conveyors to transport them to the corresponding positions, cut the packaging bags open, and allow the powder to fall into the bin. The above method cannot completely discharge the powder in the packaging bags, and personnel need to shake the packaging bags and then remove and collect the packaging bags. The operation is cumbersome and the work efficiency is low. Utility Model Content

[0003] The technical problem solved by the utility model is to provide an automatic unpacking machine which can adjust the docking feeding, unpacking and arranging of empty bags, so as to solve the problems raised in the above-mentioned background technology.

[0004] The technical problem solved by the utility model is achieved by adopting the following technical scheme: an automatic unpacking machine comprises an unpacking box, a conveying mechanism for guiding packaging bags to the unpacking box, and a bag stacking mechanism arranged on a side of the unpacking box away from the conveying mechanism; the conveying mechanism comprises a fixed conveying frame connected to the unpacking box and an adjusting conveying frame rotatably mounted on one side of the fixed conveying frame, so as to correspond to the unloading point of the packaging bags by changing the position of the adjusting conveying frame, so as to facilitate the transportation of the packaging bags to the conveying mechanism;

[0005] The unpacking box is provided with a guiding component for conveying the packaging bag and a clamping component for clamping the upper end of the packaging bag. The guiding component is provided with a cutter to cut the bottom of the packaging bag. The lower end of the unpacking box is provided with a silo for receiving materials. The clamping component conveys the empty packaging bag to the bag dropping slide, and the packaging bag is transferred to the bag stacking mechanism through the bag dropping slide for automatic stacking.

[0006] As a further solution of the utility model:

[0007] The upper ends of the adjustable conveying frame and the fixed conveying frame are respectively provided with conveyor belts to cooperate with conveying packaging bags. One side of the adjustable conveying frame is rotatably connected with the fixed conveying frame through a rotating seat. Two groups of pulleys are arranged in parallel at the bottom of the side of the adjustable conveying frame away from the rotating seat, and one group of pulleys is connected to the adjusting motor for driving to control the moving position of the adjusting conveying frame.

[0008] As a further solution of the utility model:

[0009] The fixed conveying frame is provided with a shaping and limiting component for guiding the packaging bags, and the shaping and limiting component includes a gantry installed on the fixed conveying frame and clamping conveyors arranged on both sides of the gantry. A shaping motor is installed on the gantry, and the shaping motor is synchronously connected with the clamping conveyors on both sides through a synchronous shaft. The clamping conveyor is provided with a circulating clamping conveyor belt to clamp on both sides of the packaging bags to prevent the packaging bags from deviating on the fixed conveying frame and ensure accurate docking with the unpacking box.

[0010] As a further solution of the utility model:

[0011] The guiding assembly includes a guiding frame and rollers distributedly installed on the guiding frame. The guiding frame is provided with a drag chain for conveying packaging bags located in the middle of the rollers. The drag chain is driven to move in a circulation by a guiding motor on one side of the guiding frame. The rollers are provided with guide wheels connected to the drag chain to drive the rollers to rotate synchronously. The rollers at the corresponding positions of the guiding frame are provided with cutters to cut the bottom of the packaging bag with the cutters.

[0012] As a further solution of the utility model:

[0013] The upper end of the guide frame is also provided with a limiting frame for guiding the packaging bag, and the limiting frame is symmetrically installed on both sides of the guide frame.

[0014] As a further solution of the utility model:

[0015] The clamping assembly includes a first clamping belt and a second clamping belt arranged at the upper end of the unpacking box, and a clamping assembly arranged on a side of the unpacking box close to the bag stacking mechanism, the two ends of the first clamping belt and the second clamping belt are respectively sleeved on the driving shaft, a clamping motor for driving the first clamping belt and the second clamping belt to move synchronously is provided at one end of the unpacking box, the clamping motor is connected to the driving shaft in a transmission manner, the first clamping belt and the second clamping belt are located on the driving shaft on one side of the clamping motor and are connected through a gear synchronous transmission so that the clamping belt can move in a circulation manner, and limiting rollers for limiting the first clamping belt and the second clamping belt are also distributed on the unpacking box so that the first clamping belt and the second clamping belt can be moved in a close relationship so as to utilize the first clamping belt and the second clamping belt to be clamped on both sides of the upper end of the packaging bag.

[0016] As a further solution of the utility model:

[0017] The clamping and releasing assembly includes a first clamping arm and a second clamping arm rotatably mounted on the unpacking box, the first clamping arm and the second clamping arm are arranged in conjunction with a first clamping belt and a second clamping belt, and a clamping and releasing cylinder is provided at the corresponding position of the unpacking box, the clamping and releasing cylinder is symmetrically mounted on both sides of the unpacking box, and is used to drive the first clamping arm and the second clamping arm respectively, so that the first clamping arm and the second clamping arm are synchronously closed or unfolded, so that the packaging bag falls into the bag dropping slide.

[0018] As a further solution of the utility model:

[0019] The first clamping arm and the second clamping arm are sleeved with clamping belts, and the clamping bag is drivingly connected to the driving shaft to push the packaging bag to move forward.

[0020] As a further solution of the utility model:

[0021] A bag shaking assembly is also provided on the side of the unpacking box away from the guiding assembly to beat the packaging bags so that the materials in the packaging bags fall out as quickly as possible. The bag shaking assembly includes bag shaking shafts installed on both sides of the inner end of the unpacking box. Rubber strips are distributed on the bag shaking shafts. The bag shaking shafts rotate to beat the packaging bags with the rubber strips. A pulley is provided on the outer end of the bag shaking shaft. One group of bag shaking shafts is connected to the bag shaking motor through transmission, and is synchronously connected to other bag shaking shafts through a synchronous belt.

[0022] As a further solution of the utility model:

[0023] The bag stacking mechanism includes an adsorption component for sucking packaging bags and a bag stacking conveyor arranged on one side of the adsorption component. The adsorption component includes a displacement box, an adsorption frame slidably mounted on the displacement box, and a first cylinder. One side of the first cylinder is rotatably mounted on a cylinder plate and slidably mounted on a first sliding shaft through the cylinder plate. The outer end of the output rod of the first cylinder is rotatably connected to the adsorption frame. The bottom of the adsorption frame is rotatably mounted on a second sliding shaft through a frame plate, and the frame plate is slidably mounted on the second sliding shaft. The first cylinder controls the rotation angle of the adsorption frame along the second sliding shaft. The displacement box is also provided with a second cylinder for driving the first cylinder and the adsorption frame to move horizontally, so that the adsorption frame can switch between the bag dropping slide and the bag stacking conveyor.

[0024] As a further solution of the utility model:

[0025] The adsorption rack is fixed with a third cylinder, and a sticking plate is installed on the adsorption rack for lifting and lowering. The sticking plate is controlled to lift and lower by the third cylinder, and suction nozzles are distributed on the sticking plate. The third cylinder controls the sticking plate to move forward and backward to absorb the packaging bags, and stack the packaging bags on the bag stacking conveyor in sequence.

[0026] Compared with the prior art, the utility model has the following beneficial effects: the motor is adjusted to control the rotation of the pulley, and the conveying frame is adjusted to rotate along the rotating seat, so that the side of the adjustable conveying frame away from the fixed conveying frame is abutted against the truck unloading point or the packaging bag stacking point, so that personnel can place the packaging bags on the conveying mechanism; the fixed conveying frame is also provided with a shaping limit assembly for adjusting the position of the packaging bag, so that the clamping conveyors symmetrically arranged on both sides are clamped on both sides of the packaging bag to avoid the packaging bag from deviating on the fixed conveying frame, thereby ensuring accurate docking with the unpacking box; when the packaging bag enters the unpacking box, the upper end of the packaging bag is clamped and conveyed by the clamping assembly, the lower end of the packaging bag is abutted against the guiding assembly, and the bottom of the packaging bag is cut open by the cutting knife on the guiding assembly, so that the material in the packaging bag falls into the silo, and in order to make the material of the packaging bag discharged cleanly, a bag shaking assembly is also provided, and the distributed bag shaking shafts are rotated so that the rubber strips on the bag shaking shafts beat the packaging bags, thereby shaking the packaging bags and accelerating the discharge. After the packaging bags are discharged, they are guided to the upper end of the bag-dropping slide by the clamping and placing components, and are released and fall into the bag-dropping slide. The adsorption components grab the packaging bags to transfer and stack them on the bag stacking conveyor, realizing automatic feeding, unpacking, and sorting and stacking of empty bags. It has a high degree of intelligence and greatly improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the unpacking box of the utility model;

[0029] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0030] Figure 4 This is a side structural schematic diagram of the unpacking box of the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the conveying mechanism of the utility model;

[0032] Figure 6 This is a schematic diagram of the bag stacking mechanism structure of the utility model;

[0033] The following are marked in the figure: 1. Unpacking box; 2. Conveying mechanism; 3. Bag stacking mechanism; 4. Packing bag; 5. Guide frame; 6. Clamping assembly; 11. Cutter; 12. Bin; 13. Bag drop slide; 14. Bag shaking shaft; 15. Bag shaking motor; 21. Fixed conveying frame; 22. Adjustable conveying frame; 23. Pulley; 24. Adjusting motor; 25. Gantry; 26. Clamping conveyor; 27. Shaping motor; 28. Rotating seat; 31. Bag stacking conveyor; 3 2. Displacement box; 33. Adsorption frame; 34. First cylinder; 35. First slide shaft; 36. Second slide shaft; 37. Third cylinder; 38. Paste plate; 39. Suction nozzle; 51. Support roller; 52. Drag chain; 53. Guide motor; 54. Guide wheel; 55. Limiting frame; 61. First clamping belt; 62. Second clamping belt; 63. Driving shaft; 64. Clamping motor; 65. Limiting roller; 66. First clamping arm; 67. Second clamping arm; 68. Clamping and releasing cylinder. DETAILED DESCRIPTION

[0034] In order to make the technical means for realizing the utility model, creative features, objectives and effects easy to understand, the utility model is further explained below with reference to specific illustrations.

[0035] like Figures 1 to 6 As shown,

[0036] The present embodiment provides an automatic unpacking machine, comprising an unpacking box 1, a conveying mechanism 2 for guiding a packaging bag 4 onto the unpacking box 1, and a bag stacking mechanism 3 arranged on a side of the unpacking box 1 away from the conveying mechanism 2; the conveying mechanism 2 comprises a fixed conveying frame 21 connected to the unpacking box 1 and an adjustable conveying frame 22 rotatably mounted on one side of the fixed conveying frame 21, so as to correspond to the unloading point of the packaging bag 4 by changing the position of the adjustable conveying frame 22, so as to facilitate the transportation of the packaging bag 4 to the conveying mechanism 2;

[0037] The unpacking box 1 is provided with a guiding assembly for conveying the packaging bag 4 and a clamping assembly 6 for clamping the upper end of the packaging bag 4. The guiding assembly is provided with a cutter 11 for cutting the bottom of the packaging bag 4. The lower end of the unpacking box 1 is provided with a silo 12 for receiving materials. The clamping assembly 6 conveys the empty packaging bag 4 to the bag dropping slide 13, and transfers the packaging bag 4 to the bag stacking mechanism 3 through the bag dropping slide 13 for automatic stacking.

[0038] In this embodiment, conveyor belts are respectively provided at the upper ends of the adjustable conveying frame 22 and the fixed conveying frame 21 to cooperate with the conveying of packaging bags 4. One side of the adjustable conveying frame 22 is rotatably connected to the fixed conveying frame 21 through a rotating seat 28. Two groups of pulleys 23 are arranged in parallel at the bottom of the side of the adjusting conveying frame 22 away from the rotating seat 28, one group of pulleys 23 is transmission-connected to the adjusting motor 24 to control the moving position of the adjusting conveying frame 22.

[0039] The fixed conveying frame 21 is provided with a shaping and limiting component for guiding the packaging bag 4, and the shaping and limiting component includes a gantry 25 installed on the fixed conveying frame 21 and clamping conveyors 26 arranged on both sides of the gantry 25. A shaping motor 27 is installed on the gantry 25, and the shaping motor 27 is synchronously connected with the clamping conveyors 26 on both sides through a synchronous shaft. The clamping conveyor 26 is provided with a circulating clamping conveyor belt to clamp on both sides of the packaging bag 4 to prevent the packaging bag 4 from deviating on the fixed conveying frame 21 and ensure accurate docking with the unpacking box 1.

[0040] In this embodiment, the guiding assembly includes a guiding frame 5 and rollers 51 distributedly installed on the guiding frame 5. The guiding frame 5 is provided with a drag chain 52 for conveying the packaging bag 4 located in the middle of the rollers 51. The drag chain 52 is driven to move in a circulation manner by a guiding motor 53 on one side of the guiding frame 5. The rollers 51 are provided with guide wheels 54 connected to the drag chain 52 to drive the rollers 51 to rotate synchronously. The rollers 51 at the corresponding positions of the guiding frame 5 are provided with cutters 11 to cut the bottom of the packaging bag 4 through the cutter 11.

[0041] The upper end of the guide frame 5 is also provided with a limiting frame 55 for guiding the packaging bag 4 , and the limiting frame 55 is symmetrically installed on both sides of the guide frame 5 .

[0042] In this embodiment, the clamping assembly 6 includes a first clamping belt 61 and a second clamping belt 62 arranged at the upper end of the unpacking box 1, and a clamping assembly arranged on the side of the unpacking box 1 close to the bag stacking mechanism 3, the two ends of the first clamping belt 61 and the second clamping belt 62 are respectively sleeved on the driving shaft 63, and one end of the unpacking box 1 is provided with a clamping motor 64 for driving the first clamping belt 61 and the second clamping belt 62 to move synchronously, the clamping motor 64 is connected to the driving shaft 63 through transmission, the first clamping belt 61 and the second clamping belt 62 are located on the driving shaft 63 on one side of the clamping motor 64 through gear synchronous transmission connection, so that the clamping belt moves in a cycle, and the unpacking box 1 is also distributed with limiting rollers 65 for limiting the first clamping belt 61 and the second clamping belt 62, so that the first clamping belt 61 and the second clamping belt 62 can be moved in a close relationship, so as to utilize the first clamping belt 61 and the second clamping belt 62 to be clamped on both sides of the upper end of the packaging bag 4.

[0043] The clamping and releasing assembly includes a first clamping arm 66 and a second clamping arm 67 rotatably mounted on the unpacking box 1. The first clamping arm 66 and the second clamping arm 67 are arranged in conjunction with the first clamping belt 61 and the second clamping belt 62. A clamping and releasing cylinder 68 is provided at the corresponding position of the unpacking box 1. The clamping and releasing cylinder 68 is symmetrically mounted on both sides of the unpacking box 1, and is used to drive the first clamping arm 66 and the second clamping arm 67 respectively, so that the first clamping arm 66 and the second clamping arm 67 are synchronously closed or unfolded, so that the packaging bag 4 falls into the bag dropping slide 13.

[0044] The first clamping arm 66 and the second clamping arm 67 are sleeved with clamping belts, and the clamping bag is in driving connection with the driving shaft 63 to push the packaging bag 4 to move forward.

[0045] A bag shaking assembly is also provided on the side of the unpacking box 1 away from the guiding assembly to beat the packaging bag 4 so that the material in the packaging bag 4 falls out as soon as possible. The bag shaking assembly includes bag shaking shafts 14 distributed and installed on both sides of the inner end of the unpacking box 1. Rubber strips are distributed on the bag shaking shafts 14. The bag shaking shafts 14 rotate to beat the packaging bag 4 with the rubber strips. A pulley is provided at the outer end of the bag shaking shafts 14. One group of bag shaking shafts 14 is connected to the bag shaking motor 15 for transmission, and is synchronously connected to other bag shaking shafts 14 through a synchronous belt.

[0046] In this embodiment, the bag stacking mechanism 3 includes an adsorption component for sucking the packaging bag 4 and a bag stacking conveyor 31 arranged on one side of the adsorption component. The adsorption component includes a displacement box 32 and an adsorption frame 33 and a first cylinder 34 slidably mounted on the displacement box 32. One side of the first cylinder 34 is rotatably mounted on the cylinder plate and slidably mounted on the first sliding shaft 35 through the cylinder plate. The outer end of the output rod of the first cylinder 34 is rotatably connected to the adsorption frame 33. The bottom of the adsorption frame 33 is rotatably mounted on the second sliding shaft 36 through the frame plate, and the frame plate is slidably mounted on the second sliding shaft 36. The first cylinder 34 controls the rotation angle of the adsorption frame 33 along the second sliding shaft 36. The displacement box 32 is also provided with a second cylinder that drives the first cylinder 34 and the adsorption frame 33 to move horizontally, so that the adsorption frame 33 can switch between the bag dropping slide 13 and the bag stacking conveyor 31.

[0047] The suction rack 33 is fixed with a third cylinder 37, and a sticking plate 38 is installed on the suction rack 33 for lifting. The sticking plate 38 is lifted and lowered by the third cylinder 37, and suction nozzles 39 are distributed on the sticking plate 38. The third cylinder 37 controls the sticking plate 38 to move forward and backward to absorb the packaging bags 4, and stack the packaging bags 4 on the bag stacking conveyor 31 in sequence.

[0048] The working principle of the utility model is as follows: the adjusting motor 24 controls the pulley 23 to rotate, and the adjusting conveying frame 22 rotates along the rotating seat, so that the adjusting conveying frame 22 is away from the side of the fixed conveying frame 21 and is set against the truck unloading point or the packaging bag 4 stacking point, so that the personnel can place the packaging bag 4 on the conveying mechanism 2; the fixed conveying frame 21 is also provided with a shaping limit assembly for adjusting the position of the packaging bag 4, so that the clamping conveyor 26 symmetrically arranged on both sides is clamped on both sides of the packaging bag 4 to prevent the packaging bag 4 from being on the fixed conveying frame 21. The packaging bag 4 is offset to ensure accurate docking with the unpacking box 1; the packaging bag 4 enters the unpacking box 1, and the upper end of the packaging bag 4 is clamped and conveyed by the clamping component 6, and the lower end of the packaging bag 4 is against the guide component, and the bottom of the packaging bag 4 is cut by the cutter 11 on the guide component, so that the material in the packaging bag 4 falls into the silo 12. In order to make the material discharge of the packaging bag 4 clean, a bag shaking component is also provided, and the distributed bag shaking shaft 14 is rotated to make the rubber strip on the bag shaking shaft 14 beat the packaging bag 4, so that the packaging bag 4 shakes and accelerates the discharge. After the packaging bag 4 is discharged, it is guided to the upper end of the bag drop slide 13 by the clamping component, and released and falls into the bag drop slide 13. The suction component grabs the packaging bag 4 to transfer and stack it on the bag stacking conveyor 31, realizing the automatic feeding, unpacking and sorting and stacking of the packaging bag 4, with a high degree of intelligence, greatly improving production efficiency.

[0049] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. It should be noted that in this article, if there are first and second relationship terms such as only used to distinguish one entity or operation from another entity or operation, it does not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or equipment. Without more constraints, an element defined by the phrase "comprising a..." does not exclude the existence of other identical elements in the process, method, article or apparatus comprising the element.

Claims

1. An automatic unpacking machine, comprising an unpacking box, a conveying mechanism for conveying packaging bags to the unpacking box, and a bag stacking mechanism arranged on a side of the unpacking box away from the conveying mechanism, characterized in that: The conveying mechanism includes a fixed conveying frame connected to the unpacking box and an adjustable conveying frame rotatably mounted on one side of the fixed conveying frame, so as to correspond to the unloading point of the packaging bag by changing the position of the adjustable conveying frame, so as to facilitate the transportation of the packaging bag to the conveying mechanism; The unpacking box is provided with a guiding component for conveying the packaging bag and a clamping component for clamping the upper end of the packaging bag. The guiding component is provided with a cutter to cut the bottom of the packaging bag. The lower end of the unpacking box is provided with a silo for receiving materials. The clamping component conveys the empty packaging bag to the bag dropping slide, and the packaging bag is transferred to the bag stacking mechanism through the bag dropping slide for automatic stacking.

2. The automatic unpacking machine according to claim 1, characterized in that: The upper ends of the adjustable conveying frame and the fixed conveying frame are respectively provided with conveyor belts to cooperate with conveying packaging bags. One side of the adjustable conveying frame is rotatably connected with the fixed conveying frame through a rotating seat. Two groups of pulleys are arranged in parallel at the bottom of the side of the adjustable conveying frame away from the rotating seat, and one group of pulleys is connected to the adjusting motor for driving to control the moving position of the adjusting conveying frame.

3. The automatic package unpacking machine according to claim 2, characterized in that: The fixed conveying frame is provided with a shaping and limiting component for guiding the packaging bags. The shaping and limiting component includes a gantry installed on the fixed conveying frame and clamping conveyors arranged on both sides of the gantry. A shaping motor is installed on the gantry. The shaping motor is synchronously connected with the clamping conveyors on both sides through a synchronous shaft. The clamping conveyor is provided with a circulated clamping conveyor belt to be clamped on both sides of the packaging bags.

4. The automatic package unpacking machine according to claim 1, characterized in that: The guiding assembly includes a guiding frame and rollers distributedly installed on the guiding frame. A drag chain for conveying packaging bags is installed at the middle of the guiding frame and the drag chain is driven to move in a cycle by a guiding motor on one side of the guiding frame. A guide wheel connected to the drag chain is provided on the roller to drive the roller to rotate synchronously. A cutter is provided on the roller at the corresponding position of the guiding frame to cut the bottom of the packaging bag with the cutter. A limit frame for guiding the packaging bag is also provided at the upper end of the guiding frame and the limit frame is symmetrically installed on both sides of the guiding frame.

5. The automatic unpacking machine according to claim 4, characterized in that: The clamping assembly includes a first clamping belt and a second clamping belt arranged at the upper end of the unpacking box, and a clamping assembly arranged on a side of the unpacking box close to the bag stacking mechanism, the two ends of the first clamping belt and the second clamping belt are respectively sleeved on the driving shaft, a clamping motor for driving the first clamping belt and the second clamping belt to move synchronously is provided at one end of the unpacking box, the clamping motor is connected to the driving shaft in a transmission manner, the first clamping belt and the second clamping belt are located on the driving shaft on one side of the clamping motor and are connected through a gear synchronous transmission so that the clamping belt can move in a circulation manner, and limiting rollers for limiting the first clamping belt and the second clamping belt are also distributed on the unpacking box so that the first clamping belt and the second clamping belt can be moved in a close relationship so as to utilize the first clamping belt and the second clamping belt to be clamped on both sides of the upper end of the packaging bag.

6. The automatic package unpacking machine according to claim 5, characterized in that: The clamping and releasing assembly includes a first clamping arm and a second clamping arm rotatably mounted on the unpacking box, the first clamping arm and the second clamping arm are arranged in conjunction with a first clamping belt and a second clamping belt, and a clamping and releasing cylinder is provided at the corresponding position of the unpacking box, the clamping and releasing cylinder is symmetrically mounted on both sides of the unpacking box, and is used to drive the first clamping arm and the second clamping arm respectively, so that the first clamping arm and the second clamping arm are synchronously closed or unfolded, so that the packaging bag falls into the bag dropping slide.

7. The automatic package unpacking machine according to claim 6, characterized in that: The first clamping arm and the second clamping arm are sleeved with clamping belts, and the clamping bag is drivingly connected to the driving shaft to push the packaging bag to move forward.

8. The automatic package unpacking machine according to claim 1, characterized in that: A bag shaking assembly is also provided on the side of the unpacking box away from the guiding assembly to beat the packaging bags so that the materials in the packaging bags fall out as quickly as possible. The bag shaking assembly includes bag shaking shafts installed on both sides of the inner end of the unpacking box. Rubber strips are distributed on the bag shaking shafts. The bag shaking shafts rotate to beat the packaging bags with the rubber strips. A pulley is provided on the outer end of the bag shaking shaft. One group of bag shaking shafts is connected to the bag shaking motor through transmission, and is synchronously connected to other bag shaking shafts through a synchronous belt.

9. The automatic package unpacking machine according to claim 1, characterized in that: The bag stacking mechanism includes an adsorption component for sucking packaging bags and a bag stacking conveyor arranged on one side of the adsorption component. The adsorption component includes a displacement box, an adsorption frame slidably mounted on the displacement box, and a first cylinder. One side of the first cylinder is rotatably mounted on a cylinder plate and slidably mounted on a first sliding shaft through the cylinder plate. The outer end of the output rod of the first cylinder is rotatably connected to the adsorption frame. The bottom of the adsorption frame is rotatably mounted on a second sliding shaft through a frame plate, and the frame plate is slidably mounted on the second sliding shaft. The first cylinder controls the rotation angle of the adsorption frame along the second sliding shaft. The displacement box is also provided with a second cylinder for driving the first cylinder and the adsorption frame to move horizontally, so that the adsorption frame can switch between the bag dropping slide and the bag stacking conveyor.

10. The automatic package unpacking machine according to claim 9, characterized in that: The adsorption rack is fixed with a third cylinder, and a sticking plate is installed on the adsorption rack for lifting. The lifting of the sticking plate is controlled by the third cylinder. Suction nozzles are distributed on the sticking plate. The third cylinder controls the sticking plate to move forward and backward to absorb the packaging bags and stack the packaging bags on the bag stacking conveyor in sequence.

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