A packaging bag outer bag unpacking machine and unpacking method

Abstract

The application discloses a packaging bag outer bag unpacking machine, which comprises a rack, a turnover assembly rotatably arranged on the rack and used for driving the packaging bag to turn over, a grabbing assembly, a cutter assembly, a waste bag collecting assembly and an inner bag conveyor arranged on the rack, the grabbing assembly being slidably arranged on the rack and located above the turnover assembly, the cutter assembly being located on one side of the turnover assembly and used for cutting the packaging bag, the waste bag collecting assembly being located on the other side of the turnover assembly and used for collecting the packaging bag, and the inner bag conveyor being located below the turnover assembly and used for conveying the inner bag. In the application, the packaging bag is conveyed to the turnover assembly and rotates along with the turnover assembly, the grabbing assembly clamps and fixes one side of the packaging bag, the cutter assembly cuts the packaging bag, then the turnover assembly rotates in the opposite direction, the grabbing assembly clamps and fixes the other end of the packaging bag, the inner bag can fall onto the inner bag conveyor for conveying, and the outer bag can be conveyed to the waste bag collecting assembly for treatment.

Description

Technical Field

[0001] This invention relates to the field of packaging bag unpacking technology, and in particular to a packaging bag outer bag unpacking machine and unpacking method. Background Technology

[0002] In industries such as food, pharmaceuticals, fine chemicals, new energy materials (lithium battery cathode and anode materials, etc.), and traditional Chinese medicine processing, raw materials are generally packaged in bags. To prevent contamination during transportation, these bags are typically double-layered: an inner plastic layer for sealing the materials, and an outer kraft paper bag for dust protection and to protect the inner plastic bag. However, during production, the bags need to be unpacked to allow the materials inside to smoothly enter the production line. For industries with high hygiene standards, such as food and pharmaceuticals, manual cutting should be avoided as much as possible to reduce human contamination. However, because the relative positions of the inner and outer bags are not fixed and wrinkles easily form, equipment may not accurately identify the outer bag during cutting, causing the inner bag to be torn and resulting in material leakage, thus affecting normal production. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the prior art by providing a packaging bag unpacking machine and unpacking method.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0005] A packaging bag unpacking machine, including a frame;

[0006] A flipping assembly, rotatably mounted on the frame, is used for flipping the packaging bags;

[0007] A gripping component is positioned above the flipping component and is used for gripping the packaging bag;

[0008] A cutting assembly, located on one side of the flipping assembly, is used for cutting the packaging bag;

[0009] A waste bag collection component is disposed on the side of the flipping component away from the cutting component, and is used for collecting packaging bags;

[0010] An inner bag conveyor, located below the flipping assembly, is used for conveying the inner bags.

[0011] Preferably, the flipping assembly includes a flipping frame, which is rotatably mounted on the frame. A packaging conveyor is mounted on the flipping frame, and a first support frame is fixedly mounted on the flipping frame. A first cylinder is fixedly mounted on the first support frame, and a pressure plate is fixedly connected to the movable end of the first cylinder. The pressure plate is located above the packaging conveyor.

[0012] Preferably, a second support frame is fixedly mounted on the flipping frame, a second cylinder is fixedly mounted on the second support frame, and a first baffle is mounted on the movable end of the second cylinder. The first baffle is located on the left and right sides of the packaging conveyor.

[0013] Preferably, a third cylinder is also fixedly installed on the flipping frame. The third cylinder is located on the front and rear sides of the packaging conveyor, and a second baffle is provided on the movable end of the third cylinder.

[0014] Preferably, the gripping assembly includes a movable plate slidably disposed on the frame, the movable plate sliding along the conveying direction of the packaging conveyor, a connecting plate vertically slidably disposed on the movable plate, a gripping plate disposed on the connecting plate, the connecting plate and the gripping plate being connected by a fifth cylinder, a gripping cylinder disposed on the connecting plate, and a clamping plate disposed on the movable end of the gripping cylinder for clamping and fixing the outer packaging bag.

[0015] Preferably, the cutting assembly includes a cutting frame that is horizontally slidably disposed on the frame, and the cutting frame is provided with a cutting blade for cutting the outer packaging bag.

[0016] Preferably, a mounting bracket is horizontally slidably mounted on the cutting frame, the sliding direction of the mounting bracket is perpendicular to the sliding direction of the cutting frame, and the cutter is fixedly mounted on the mounting bracket.

[0017] Preferably, the waste bag collection assembly includes a chute fixedly mounted on the frame. The chute is located on one side of the output end of the flipping assembly. The chute is inclined and used to transport the cut outer packaging bags to the outside.

[0018] Preferably, a sorting component is provided on one side of the frame, the sorting component is located on one side of the input end of the flipping component, the sorting component includes a conveyor, a sorting frame is fixedly provided on the conveyor, a fourth cylinder is fixedly provided on the sorting frame, and a sorting plate is provided on the movable end of the fourth cylinder for sorting the packaging bags.

[0019] A method for unpacking outer packaging includes the following steps:

[0020] S1: The packaging bag is conveyed along the conveyor belt. During the conveying process, the fourth cylinder drives the sorting plate to slide horizontally, and the packaging bag is patted and sorted to make the packaging bag flatter.

[0021] S2: After the packaging bags are sorted, they are conveyed to the packaging conveyor, and the pressure plate slides down to press the packaging bags tightly;

[0022] S3: The rotating frame tilts the packaging bag, the gripping component clamps and fixes the end of the packaging bag at the higher position, the pressure plate moves upward to release the packaging bag, and the inner bag of the packaging bag falls to the side away from the gripping component.

[0023] S4: The cutter cuts the outer bag of the packaging bag, the gripping component releases the packaging bag, and the packaging bag slides into the flipping frame under the action of gravity. After the cutting is completed, the flipping frame rotates to a horizontal state.

[0024] S5: The gripping component slides on the frame to the other side of the packaging bag, preparing to clamp the other side of the packaging bag, and the pressure plate slides down to press the packaging bag tightly.

[0025] S6: The flipping frame rotates in the opposite direction, the gripping component clamps and fixes the other side of the packaging bag, the pressure plate slides upward and releases the packaging bag, so that the inner bag can be discharged from the cut of the outer bag and fall onto the inner bag conveyor for conveying.

[0026] S7: The flipping frame rotates to a horizontal state, and the gripping component conveys the cut outer bag of the packaging bag to the chute.

[0027] The beneficial effects of adopting the above technical solution are as follows:

[0028] 1. In this invention, when unpacking the outer bag of the packaging bag, the packaging bag is first conveyed to the packaging conveyor, the pressure plate presses the packaging bag tightly, then the flipping frame rotates to tilt the packaging bag, and the gripping component clamps and fixes the end of the outer bag at the higher position, and the inner bag of the packaging bag will fall to the lower position. At this time, the cutting component cuts the packaging bag at the higher position, which can effectively avoid damage to the inner bag; after the cutting is completed, the flipping frame rotates in the opposite direction, and the gripping component grips the other end of the packaging bag. The inner bag can fall from the cut of the outer bag to the inner bag conveyor for conveying. Therefore, when cutting the outer bag, damage to the inner bag can be avoided, thereby preventing material leakage.

[0029] 2. In this invention, before the packaging bag is conveyed to the packaging conveyor, while the packaging bag is being conveyed on the conveyor, the fourth cylinder drives the sorting plate to beat and sort the packaging bag, making the packaging bag flatter, avoiding wrinkles, and making the material inside the packaging bag looser and more uniform, which is easier to grasp and cut later. Attached Figure Description

[0030] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0031] Figure 2 This is a three-dimensional schematic diagram of the present invention from another angle;

[0032] Figure 3 This is a three-dimensional schematic diagram of the flipping component of the present invention;

[0033] Figure 4 This is a three-dimensional schematic diagram of the flipping component of the present invention from another angle;

[0034] Figure 5 This is a three-dimensional schematic diagram of the grasping component of the present invention;

[0035] Figure 6 This is a three-dimensional schematic diagram of the gripping component of the present invention from another angle;

[0036] Figure 7 This is a three-dimensional schematic diagram of the cutting component of the present invention;

[0037] Figure 8 This is a three-dimensional schematic diagram of the waste bag collection component of the present invention;

[0038] Figure 9 This is a three-dimensional schematic diagram of the finishing component of the present invention.

[0039] In the diagram: 1 is the frame, 2 is the tilting assembly, 3 is the gripping assembly, 4 is the cutting assembly, 5 is the waste bag collection assembly, 6 is the inner bag conveyor, 7 is the tilting frame, 8 is the packaging conveyor, 9 is the first support frame, 10 is the first cylinder, 11 is the pressure plate, 12 is the second support frame, 13 is the second cylinder, 14 is the first baffle, 15 is the third cylinder, 16 is the second baffle, 17 is the moving plate, 18 is the connecting plate, 19 is the gripping cylinder, 20 is the clamping plate, and 21 is the cutting device. 22 is the cutter, 23 is the mounting bracket, 24 is the chute, 25 is the sorting assembly, 26 is the conveyor, 27 is the sorting rack, 28 is the fourth cylinder, 29 is the sorting plate, 30 is the gripping plate, 31 is the fifth cylinder, 32 is the drive motor, 33 is the positioning plate, 34 is the rotating shaft, 35 is the positioning groove, 36 is the position sensor, 37 is the limit bar, 38 is the finger cylinder, 39 is the bag-strapping claw, 40 is the stop bar, 41 is the telescopic rod, and 42 is the sixth cylinder. Detailed Implementation

[0040] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] like Figure 1 and Figure 2 As shown, a packaging bag outer bag unpacking machine includes a frame 1, which is fixedly installed on the ground. The left side of the frame 1 is the input end of the packaging bag, and the right side of the frame 1 is the output end of the packaging bag. A flipping component 2 is rotatably installed on the frame 1, with the left side of the flipping component 2 being the input end and the right side being the output end. The flipping component 2 is used to drive the packaging bag to rotate, thereby tilting the packaging bag. A gripping component 3 is slidably installed on the frame 1, sliding horizontally along the frame 1. The gripping component 3 slides along the left and right sides of the frame 1 and is used to grip the packaging bag. A cutting component 4 is also installed on the frame 1, located on one side of the input end of the flipping component 2. The cutting component 4 is used to cut the outer bag of the packaging bag. A waste bag collection component 5 is installed on one side of the right output end of the flipping component 2, and is used for the centralized collection of the outer bag of the packaging bag. An inner bag conveyor 6 is installed below the flipping component 2 for conveying the inner bag of the packaging bag.

[0044] In this invention, the packaging bag is fed onto the flipping assembly 2 from the input end on the left side. The flipping assembly 2 then rotates clockwise, causing the packaging bag to tilt. The gripping assembly 3 slides along the frame 1 to the high end of the packaging bag, i.e., the left end of the packaging bag, and grips the left end of the outer bag. The inner bag falls to the lowest point of the outer bag, i.e., the right side of the outer bag. Since the end of the outer bag is generally sealed with a rope, it has an extended portion. Therefore, the gripping assembly 3 does not affect the inner bag when gripping this portion, allowing the inner bag to slide inside the outer bag. After the gripping assembly 3 grips, the cutting assembly cuts one side of the outer bag at its high position, forming a side surface of the outer bag. The packaging bag is cut into a long strip shape. After cutting, the gripping component 3 releases the packaging bag, and the flipping component 2 rotates counterclockwise. The gripping component 3 slides to the other side of the packaging bag and clamps it in place. As the flipping component 2 continues to rotate, the packaging bag rotates in the opposite direction until it tilts at a certain angle. The inner bag of the packaging bag slides inside the outer bag and finally falls from the cut of the outer bag onto the inner bag conveyor 6 for transport. The gripping component 3 drives the cut outer bag of the packaging bag to the waste bag collection component 5. After the gripping component 3 releases the outer bag of the packaging bag, the outer bag falls into the waste bag collection component 5 for centralized collection and processing. Through the above steps, the outer bag of the packaging bag can be cut and unpacked without damaging the inner bag, ensuring the integrity of the inner bag and preventing material leakage.

[0045] refer to Figure 3 and Figure 4As shown, the flipping assembly 2 includes a flipping frame 7, which is rotatably mounted on the frame 1. A packaging conveyor 8 is mounted on the flipping frame 7 and can rotate synchronously with the flipping frame 7. A first support frame 9 is fixedly mounted on the flipping frame 7, and a first cylinder 10 is fixedly mounted on the first support frame 9. A pressure plate 11 is fixedly connected to the movable end of the first cylinder 10. The extension and retraction of the movable end of the first cylinder 10 can drive the pressure plate 11 to slide up and down. The pressure plate 11 is located above the packaging conveyor 8. In this embodiment, the packaging bag can be... The packaging conveyor 8 transports the packaging bag. Once the bag is on the conveyor 8, the conveyor 8 stops, allowing the bag to remain on it. The first cylinder 10 moves the pressure plate 11 downwards, pressing the bag firmly onto the conveyor 8. Then, the tilting frame 7 rotates the conveyor 8 clockwise. The pressure plate 11's compression prevents the bag from sliding on the conveyor 8. When the tilting frame 7 reaches its position, the gripping component 3 moves to the higher left side of the bag and... The left end of the packaging bag is clamped and fixed. The first cylinder 10 drives the pressure plate 11 to reset, separating the pressure plate 11 from the packaging bag. The inner bag of the packaging bag can slide to the lower right position in the outer bag. The cutting assembly 4 makes a horizontal cut on one side of the upper position of the outer bag of the packaging bag, forming a cut. After the cut is completed, the first cylinder 10 drives the pressure plate 11 to press the packaging bag. The flipping frame 7 drives the packaging conveyor 8 and the packaging bag to rotate counterclockwise. At the same time, the gripping assembly 3 releases the packaging bag and slides it to the right side of the packaging bag. As the flipping frame 7 continues to rotate, the packaging bag tilts to a certain degree. After the angle is adjusted, the right end of the packaging bag rotates to a high position. The gripping component 3 clamps and fixes the right end of the packaging bag. The first cylinder 10 drives the pressure plate 11 to reset, causing the pressure plate 11 to separate from the packaging bag. Under the action of gravity, the inner bag of the packaging bag can fall from the cut of the outer bag onto the inner bag conveyor 6 below the flipping component 2 for conveying. Then the flipping component 2 rotates clockwise to a horizontal state. At the same time, the gripping component 3 drives the outer bag of the packaging bag to the waste bag collection component 5 on the right side of the flipping component 2, so that the outer bag of the packaging bag can be collected and processed in a centralized manner.

[0046] It should be noted that a drive motor is fixedly installed on the frame 1. The drive motor 32 is located on one side of the flipping frame 7. The output shaft of the drive motor 32 is fixedly connected to one side of the flipping frame 7. Therefore, the drive motor 32 can drive the flipping frame 7 to rotate. By rotating the drive motor 32 forward and backward, the flipping frame 7 can be driven to rotate clockwise or counterclockwise.

[0047] See Figure 4As shown, a positioning plate 33 is fixedly installed on the side of the frame 1 opposite to the drive motor 32, and a rotating shaft 34 is fixedly installed on one side of the tilting frame 7. The rotating shaft 34 is rotatably mounted on the positioning plate 33. An arc-shaped positioning groove 35 is opened on the positioning plate 33. The positioning groove 35 is coaxially arranged with the rotating shaft 34. Two position sensors 36 are arranged symmetrically in the positioning groove 35. A limit strip 37 is fixedly installed at one end of the rotating shaft 34. When the tilting frame 7 rotates, the rotating shaft 34 and the limit strip 37 rotate synchronously. When the limit strip 37 blocks the sensing end of one of the position sensors 36, the tilting frame 7 stops rotating. Similarly, when the tilting frame 7 rotates in the opposite direction, the limit strip 37 blocks the sensing end of the other position sensor 36, and the tilting frame 7 can also stop rotating, so that the tilting frame 7 is limited when rotating in both directions.

[0048] Furthermore, the lower end face of the pressure plate 11 is provided with a pressing block with an inverted triangular structure. The tip of the pressure plate 11 faces downward. During the process of squeezing the packaging bag, the pressing block can be embedded in the powdery or granular material of the packaging bag, so that the pressure plate 11 can press and fix the packaging bag.

[0049] refer to Figure 3 and Figure 4 As shown, a second support frame 12 is fixedly installed on the flipping frame 7. There are two sets of second support frames 12, which are located on the left and right sides of the packaging conveyor 8, respectively. A second cylinder 13 is fixedly installed on the second support frame 12. A first baffle 14 is installed on the movable end of the second cylinder 13. Similarly, there are two first baffles 14, which are located on the left and right sides of the packaging conveyor 8, respectively. In this embodiment, the second cylinders 13 on the two sets of support frames 12 can be controlled separately, thereby driving the first baffles 14 to slide up and down. The first baffles 14 are used to block the packaging bag and prevent the packaging bag from falling off the packaging conveyor 8 during the cutting process.

[0050] It should be noted that a slide rail is fixedly installed on the second support frame 12, and the slide rail is set in the vertical direction. A slider is fixedly installed on the first baffle 14, and the slider is slidably set on the slide rail, so that the first baffle 14 slides more smoothly and steadily. At the same time, the support of the slide rail makes the first baffle 14 more stable.

[0051] Furthermore, a third cylinder 15 is fixedly installed on the flipping frame 7. There are two sets of third cylinders 15, which are located on the front and rear sides of the packaging conveyor 8, respectively. The movable end of the third cylinder 15 is provided with a second baffle 16. Similarly, there are two second baffles 16, which are located on the front and rear sides of the packaging conveyor 8. The two second baffles 16 can limit the front and rear direction of the packaging bag, so that the packaging bag can be located in the middle position of the packaging conveyor 8.

[0052] refer to Figure 5 and Figure 6 As shown, the gripping assembly 3 includes a movable plate 17 slidably mounted on the frame 1. The movable plate 17 slides along the conveying direction of the packaging conveyor 8. A connecting plate 18 is vertically slidably mounted on the movable plate 17. A gripping plate 30 is mounted on the connecting plate 18. The connecting plate 18 and the gripping plate 30 are connected by a fifth cylinder 31. A gripping cylinder 19 is mounted on the connecting plate 18. A clamping plate 20 is mounted on the movable end of the gripping cylinder 19 for clamping and fixing the outer packaging bag. In this embodiment, when gripping the end of the packaging bag, the packaging bag rotates with the flipping frame 7, causing one end of the packaging bag to tilt upwards. The movable plate 17 slides horizontally along the frame 1 to the end of the packaging bag at the higher position. The movable end of the fifth cylinder 31 extends downwards, driving the gripping plate 30 to move downwards, so that the end of the outer packaging bag at the higher position is between the two clamping plates 20. Then, the movable end of the gripping cylinder 19 drives the two clamping plates 20 to move towards each other, so that the clamping plates 20 clamp and fix the end of the packaging bag.

[0053] It should be noted that a slide rail is fixedly mounted horizontally on the frame 1, and a slider is fixedly mounted on the movable plate 17, sliding on the slide rail to make the movable plate 17 slide more smoothly. A lead screw is rotatably mounted on the frame 1, and the lead screw is parallel to the slide rail. A lead screw nut is mounted on the movable plate 17 (the lead screw and lead screw nut are located inside the guard on one side of the slide rail, not shown in the figure). The lead screw nut is threadedly connected to the lead screw. The motor drives the lead screw to rotate, which can drive the movable plate 17 to slide horizontally along the slide rail. A sixth cylinder 42 is fixedly mounted on the movable plate 17. The movable end of the sixth cylinder 42 is fixedly connected to the connecting plate 18. Therefore, the extension and retraction of the movable end of the sixth cylinder 42 can drive the connecting plate 18 to slide up and down. Multiple guide rods are fixedly mounted on the upper surface of the connecting plate 18. The guide rods are vertically mounted and slidably connected to the movable plate 17. During the up and down movement of the connecting plate 18, the guide rods can make the connecting plate 18 more stable.

[0054] Furthermore, the connecting plate 18 is equipped with a finger cylinder 38, model HFR25;AIRTAC. The movable end of the finger cylinder 38 is fixedly equipped with a bag straightening claw 39. During the bag conveying process, due to the high plasticity of the bag, the end of the bag may be bent or wrinkled, making it impossible to be clamped and fixed by the clamping plate 20. Therefore, the finger cylinder 38 can drive the bag straightening claw 39 to straighten and arrange the end of the bag, so that the end of the outer bag of the bag is in a straight state, which makes it easier for the clamping plate 20 to clamp and fix the bag.

[0055] refer to Figure 7As shown, the cutter assembly 4 includes a cutting frame 21 that is horizontally slidably mounted on the frame 1. The sliding direction of the cutting frame 21 is perpendicular to the conveying direction of the packaging bag. A cutter 22 is mounted on the cutting frame 21, with the tip of the cutter 22 facing one side of the packaging conveyor 8. In this embodiment, when the packaging bag is tilted, the side of the packaging bag at the higher position is close to the cutter 22. At this time, the cutting frame 21 drives the cutter 22 to slide horizontally, so that the packaging bag can form a horizontal cut, making it easy for the inner bag to fall from the cut.

[0056] It should be noted that a lead screw is horizontally rotatable on the frame 1. The lead screw is driven to rotate by a motor fixed on the frame 1. A lead screw nut is provided on the cutting frame 21. The lead screw nut and the lead screw are threaded together (the lead screw and lead screw nut are located inside the guard on one side of the slide rail, which is not shown in the figure). Therefore, during the rotation of the lead screw, the cutting frame 21 can be driven to slide along the length of the lead screw, so that the cutter 22 can horizontally cut the outer bag of the packaging bag.

[0057] Furthermore, a mounting frame 23 is horizontally slidably mounted on the cutting frame 21. The sliding direction of the mounting frame 23 is perpendicular to the sliding direction of the cutting frame 21. The cutter 22 is fixedly mounted on the mounting frame 23. In this embodiment, when the cutter 22 cuts the packaging bag, the mounting frame 23 drives the cutter 22 to slide towards the side closer to the packaging bag, so that the tip of the cutter 22 is inserted into the packaging bag. Then the cutting frame 21 slides horizontally along the frame 1, which can cut the outer bag of the packaging bag into a long strip-shaped cut.

[0058] It should be noted that a rotary motor 43 is fixedly installed on the cutting frame 21. The output shaft of the rotary motor 43 is fixedly connected to a rotary wheel 44. The output shaft of the rotary motor 43 and the rotary wheel 44 are coaxially arranged. A connecting rod 45 is hinged to the side of the rotary wheel 44 away from the rotary motor 43. The hinge point between the connecting rod 45 and the rotary wheel 44 is located at the edge of the rotary wheel 44. The other end of the connecting rod 45 is hinged to the mounting frame 23. A slide rail is fixedly installed on the cutting frame 21, and a slider is fixedly installed on the mounting frame 23. The slider is slidably mounted on the slide rail. Therefore, after the rotary motor 43 is started, it drives the rotary wheel 44 to rotate, so that the mounting frame 23 can slide along the slide rail and insert the cutter 22 into the outer bag of the packaging bag.

[0059] Furthermore, a stop bar 40 is fixedly installed on the frame 1. The stop bar 40 is located above the cutter 22. When the clamping assembly 3 clamps the left end of the packaging bag for cutting, the clamping assembly moves the packaging bag to the stop bar 40, so that the stop bar 40 can press against the packaging bag and prevent the packaging bag from shaking during cutting.

[0060] refer to Figure 8As shown, the waste bag collection assembly 5 includes a chute 24 fixedly mounted on the frame 1. The chute 24 is located on one side of the output end of the flipping assembly 2. The chute 24 is inclined and its lowest end extends to the outside of the frame 1. In this embodiment, after the outer bag of the packaging bag is cut, the inner bag falls from the outer bag of the packaging bag onto the inner bag conveyor 6 for conveying. The outer bag can be conveyed to the chute 24 through the packaging clamping assembly 3. The outer bag slides down the chute 24 to the outside of the frame 1.

[0061] Furthermore, a telescopic rod 41 is provided on the frame 1. The telescopic rod 41 is located on the front side of the chute 24. The telescopic rod 41 slides horizontally on the frame 1. When the clamping assembly 3 conveys the packaging bag to the chute 24, the packaging bag and the chute 24 are in a vertical state. Therefore, the horizontal sliding of the telescopic rod 41 on the frame 1 can drive the packaging bag and the chute 24 to be in a parallel state. Then, the clamping assembly 3 releases the outer bag of the packaging bag so that the outer bag of the packaging bag can fall more stably into the chute 24.

[0062] refer to Figure 9 As shown, a sorting component 25 is provided on the left side of the frame 1. The sorting component is located on one side of the input end of the flipping component 2. The sorting component includes a conveyor 26, which can be a square roller conveyor. A sorting frame 27 is fixedly installed on the conveyor 26. The sorting frame 27 is fixedly installed on the front and rear sides of the conveyor 26. A fourth cylinder 28 is fixedly installed on the sorting frame 27. There are two sets of fourth cylinders 28, which are located on the two sorting frames 27 respectively. A sorting plate 29 is provided at the movable end of the fourth cylinder 28. In this embodiment, when the packaging bag is conveyed to the conveyor 26, the packaging bag may be skewed, wrinkled or other irregular shapes. At this time, after the packaging bag is conveyed to the flipping component 2, the gripping component 3 may not be able to clamp and fix the packaging bag. Therefore, the fourth cylinder 28 can drive the sorting plate 29 to slide back and forth on the conveyor 26. The sorting plate 29 can pat the packaging bag and sort it so that the packaging bag can form a more regular shape, which is convenient for subsequent unpacking.

[0063] It should be noted that multiple square conveyor rollers are rotatably installed on the conveyor 26 to provide power for forward conveying of the packaging bags. This effectively prevents the packaging bags from slipping on the conveyor, allowing them to be conveyed forward normally. It also ensures that the materials inside the packaging bags are evenly dispersed and distributed, facilitating the packing and sorting of the packaging bags.

[0064] It should be noted that a sliding rod is fixedly installed between the two sorting racks 27. The sliding rod is set horizontally, and the sorting plate 29 is slidably set on the sliding rod, so that the sorting plate 29 slides more smoothly.

[0065] In another embodiment, the fourth cylinder 28 can be positioned above the conveyor 26, and the sorting plate 29 is fixedly positioned at the movable end of the fourth cylinder 28. The fourth cylinder 28 can drive the sorting plate 29 to move up and down, so that the sorting plate 29 can pat the packaging bag up and down, thus achieving the sorting operation of the packaging bag.

[0066] A method for unpacking outer packaging includes the following steps:

[0067] S1: The packaging bag is conveyed along the conveyor 26. During the conveying process, the fourth cylinder drives the sorting plate 29 to slide horizontally, and sorts the packaging bag by tapping it to make the packaging bag flatter.

[0068] S2: After the packaging bags are sorted, they are conveyed to the packaging conveyor 8, and the pressure plate 11 slides down to press the packaging bags tightly.

[0069] S3: The rotating frame 7 tilts the packaging bag, the gripping component clamps and fixes the end of the packaging bag at the higher position, the pressure plate 11 moves upward to release the packaging bag, and the inner bag of the packaging bag falls to the side away from the gripping component; at the same time, the first baffle 14 on the rotating frame 7 away from the gripping component slides downward until the lower end of the first baffle 14 abuts against the conveyor 8.

[0070] S4: The cutter 22 cuts the outer bag of the packaging bag, the gripping component releases the packaging bag, and the packaging bag slides into the flipping frame 7 under the action of gravity. During the process of the packaging bag sliding down the flipping frame 7, it can be blocked by the first baffle 14 on the side away from the gripping component, which can prevent the packaging bag from falling outside the flipping frame 7; after the cutting is completed, the flipping frame 7 rotates to a horizontal state.

[0071] S5: The gripping component 3 slides on the frame 1 to the other side of the packaging bag, preparing to clamp the other side of the packaging bag. The pressure plate 11 slides down to press the packaging bag; the first baffle 14 slides up to reset.

[0072] S6: The flipping frame 1 rotates in the opposite direction, the gripping component 3 clamps and fixes the other side of the packaging bag, the pressure plate 11 slides upward and releases the packaging bag, so that the inner bag can be discharged from the cut of the outer bag and fall onto the inner bag conveyor 6 for conveying.

[0073] S7: The flipping frame 7 rotates to a horizontal position, and the gripping component 3 conveys the cut outer bag of the packaging bag to the chute 24.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A packaging bag outer bag unpacking machine, characterized in that, Including rack (1); The flipping component (2) is rotatably mounted on the frame (1) for flipping the packaging bag; The gripping component (3) is positioned above the flipping component (2) and is used for gripping the packaging bag; The cutting component (4), located on one side of the flipping component (2), is used for cutting the packaging bag; Waste bag collection component (5) is disposed on the side of the flipping component (2) away from the cutter component (4) for collecting packaging bags; The inner bag conveyor (6), located below the flipping assembly (2), is used for conveying the inner bag.

2. The packaging bag unpacking machine according to claim 1, characterized in that, The flipping assembly (2) includes a flipping frame (7), which is rotatably mounted on the frame (1). A packaging conveyor (8) is mounted on the flipping frame (7). A first support frame (9) is fixedly mounted on the flipping frame (7). A first cylinder (10) is fixedly mounted on the first support frame (9). A pressure plate (11) is fixedly connected to the movable end of the first cylinder (10). The pressure plate (11) is located above the packaging conveyor (8).

3. The packaging bag unpacking machine according to claim 2, characterized in that, A second support frame (12) is fixedly installed on the flipping frame (7), and a second cylinder (13) is fixedly installed on the second support frame (12). A first baffle (14) is installed on the movable end of the second cylinder (13), and the first baffle (14) is located on the left and right sides of the packaging conveyor (8).

4. A packaging bag unpacking machine according to claim 2, characterized in that, A third cylinder (15) is also fixedly installed on the flipping frame (7). The third cylinder (15) is located on the front and rear sides of the packaging conveyor (8). A second baffle (16) is provided on the movable end of the third cylinder (15).

5. A packaging bag outer bag unpacking machine according to claim 2, characterized in that, The gripping assembly (3) includes a movable plate (17) slidably disposed on the frame (1). The movable plate (17) slides along the conveying direction of the packaging conveyor (8). A connecting plate (18) is vertically slidably disposed on the movable plate (17). A gripping plate (30) is disposed on the connecting plate (18). The connecting plate (18) and the gripping plate (30) are connected by a fifth cylinder (31). A gripping cylinder (19) is disposed on the connecting plate (18). A clamping plate (20) is disposed on the movable end of the gripping cylinder (19) for clamping and fixing the outer bag packaging bag.

6. A packaging bag unpacking machine according to claim 1, characterized in that, The cutting assembly (4) includes a cutting frame (21) that is horizontally slidably mounted on the frame (1), and a cutting blade (22) is mounted on the cutting frame (21) for cutting the outer packaging bag.

7. A packaging bag outer bag unpacking machine according to claim 6, characterized in that, A mounting bracket (23) is horizontally slidably mounted on the cutting frame (21). The sliding direction of the mounting bracket (23) is perpendicular to the sliding direction of the cutting frame (21). The cutter (22) is fixedly mounted on the mounting bracket (23).

8. A packaging bag unpacking machine according to claim 1, characterized in that, The waste bag collection component (5) includes a chute (24) fixedly installed on the frame (1). The chute (24) is located on one side of the output end of the flipping component (2). The chute (24) is inclined and is used to transport the cut outer packaging bag to the outside.

9. A packaging bag unpacking machine according to claim 1, characterized in that, A sorting component (25) is provided on one side of the frame (1). The sorting component is located on one side of the input end of the flipping component (2). The sorting component includes a conveyor (26). A sorting frame (27) is fixedly provided on the conveyor (26). A fourth cylinder (28) is fixedly provided on the sorting frame (27). A sorting plate (29) is provided on the movable end of the fourth cylinder (28) for sorting the packaging bags.

10. A method for unpacking outer bag packaging, applied to the unpacking machine according to any one of claims 1-9, characterized in that, Includes the following steps: S1: The packaging bag is conveyed along the conveyor (26). During the conveying process, the fourth cylinder drives the sorting plate (29) to slide horizontally and pat the packaging bag to make it flatter. S2: After the packaging bags are sorted, they are conveyed to the packaging conveyor (8), and the pressure plate (11) slides down to press the packaging bags tightly; S3: The flipping frame (7) rotates to tilt the packaging bag, the gripping component clamps and fixes the end of the packaging bag at the higher position, the pressure plate (11) moves upward to release the packaging bag, and the inner bag of the packaging bag falls to the side away from the gripping component. S4: The cutter (22) cuts the outer bag of the packaging bag, the gripping component releases the packaging bag, and the packaging bag slides into the flipping frame (7) under the action of gravity. After the cutting is completed, the flipping frame (7) rotates to a horizontal state. S5: The gripping component (3) slides on the frame (1) to the other side of the packaging bag, ready to clamp the other side of the packaging bag, and the pressure plate (11) slides down to press the packaging bag; S6: The flipping frame (1) rotates in the opposite direction, the gripping assembly (3) clamps and fixes the other side of the packaging bag, the pressure plate (11) slides upward and releases the packaging bag, so that the inner bag can be discharged from the cut of the outer bag and fall onto the inner bag conveyor (6) for conveying. S7: The flipping frame (7) rotates to a horizontal state, and the gripping component (3) transports the cut outer bag of the packaging bag to the chute (24).

Images