Soft handle packaging bag packaging unit

Abstract

The utility model relates to a kind of soft handle packaging bag packaging unit, including the push bag mechanism, bag blocking mechanism, rotary bag taking mechanism and bag moving mechanism in the order of being arranged along soft handle packaging bag conveying direction, the push bag mechanism below is provided with side bag protection mechanism, the bag taking mouth structure is provided with bag opening mechanism above, the bag blocking mechanism, side bag protection mechanism between form packaging bag discharge space for limiting each soft handle packaging bag, the push bag mechanism includes the bag hanging mechanism for storing soft handle packaging bag and the push bag mechanism for each soft handle packaging bag is sequentially pushed to bag taking station towards bag blocking mechanism by soft handle packaging bag. The utility model is simple in structure, reasonable in design, convenient to use, adapts to the conveying, filling operation of soft handle packaging bag, can avoid soft handle and carry out efficient and stable conveying, filling and other packaging work to soft handle packaging bag, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to a packaging machine unit for soft-handled packaging bags. Background Technology

[0002] Traditional material packaging methods involve manually filling materials into bags, sealing the bags, and handling them. This method is time-consuming, labor-intensive, and inefficient. Furthermore, common rice packaging bags on the market include handle-sealed bags and ordinary laminated woven bags; therefore, conventional semi-automatic or fully automatic packaging machines are designed around these two types of bags. While existing fully automatic rice packaging equipment is relatively mature, it is not compatible with soft-handled bags. This invention was developed to address the issue of circumventing soft handles and efficiently and stably conveying and filling soft-handled bags. Utility Model Content

[0003] This invention addresses the aforementioned problems by providing a soft-handle packaging bag unit that is convenient and efficient to use.

[0004] This utility model is constructed as follows: it includes a bag-pushing mechanism, a bag-blocking mechanism, a rotating bag-picking mechanism, and a bag-moving opening mechanism arranged sequentially along the conveying direction of the soft-handled packaging bags. A side-protecting bag mechanism is provided below the bag-pushing mechanism, and a bag-opening mechanism is provided above the bag-picking opening structure. The bag-blocking mechanism and the side-protecting bag mechanism form a packaging bag discharge space to limit the material discharge of each soft-handled packaging bag. The bag-pushing mechanism includes a bag-hanging mechanism for storing the soft-handled packaging bags and a bag-pushing mechanism for pushing each soft-handled packaging bag toward the bag-blocking mechanism toward the bag-picking station one by one.

[0005] Compared with the prior art, this utility model has the following advantages: The device has a simple structure, reasonable design, and is easy to use. It suspends the outer soft handles of multiple soft-handled packaging bags on the hanging rod of the bag-hanging mechanism; the bag-pushing mechanism pushes each soft-handled packaging bag outwards along the length of the hanging rod, so that the outermost soft-handled packaging bag is inside the bag-blocking mechanism. The position inside the bag-blocking mechanism is the bag-removing station, and simultaneously, each soft-handled packaging bag is within the packaging bag discharge space formed between the bag-blocking mechanism and the side-protecting bag mechanism. The packaging bag discharge space ensures that the soft-handle packaging bags remain vertical during transport; the rotating bag-picking mechanism removes the soft-handle packaging bags from the bag-picking station, rotates them 180 degrees, and then sends them to the front clamping cylinder assembly of the bag-moving mechanism; the front clamping cylinder of the bag-moving mechanism transports the soft-handle packaging bags to the bag-opening station, where the bag-opening mechanism opens the bag opening; the bag-supporting plate assembly of the bag-moving mechanism inserts into the bag opening, and the rear clamping cylinder assembly clamps the soft-handle packaging bags; the rear clamping cylinder... The assembly continues to transport the open-mouthed soft-handled packaging bag to the filling station, where the bag opening is fitted and secured to the filling port of the filling equipment, and material is filled into the soft-handled packaging bag. After the material is filled, the bag-pulling and clamping cylinder assembly takes over the filled soft-handled packaging bag, straightens the bag opening, and then transports the soft-handled packaging bag to the bag guiding mechanism. The filled soft-handled packaging bag is then transported to the folding and sewing station, where the bag opening is folded, sewn, and sealed before being output.

[0006] Unlike common packaging equipment, this device employs a bag-pushing mechanism that ensures there is always a bag available for retrieval at the bag-picking position; a side-protecting bag mechanism that ensures the bag opening height and width are basically consistent during bag retrieval; a bag-stopping mechanism that positions the bag and prevents the next bag from being pulled out during retrieval; a rotating bag-picking mechanism that enables alternating bag retrieval, which is highly efficient and stable; and a three-section bag-moving mechanism that performs the functions of receiving, opening, and sealing bags, with smooth operation that effectively avoids soft handles during bag retrieval, opening, filling, and conveying operations. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0008] Figure 2 for Figure 1 Local magnification in Figure 1 ;

[0009] Figure 3 for Figure 1 Local magnification in Figure 2 ;

[0010] Figure 4 This is a schematic diagram of the hanging strap mechanism and the bag pushing mechanism in an embodiment of this utility model;

[0011] Figure 5 This is a schematic diagram of the hanging mechanism structure according to an embodiment of the present utility model;

[0012] Figure 6 This is a schematic diagram of the bag-pushing mechanism in an embodiment of the present invention;

[0013] Figure 7 This is a schematic diagram of the hanging state of the soft-handled packaging bag according to an embodiment of this utility model;

[0014] Figure 8 This is a schematic diagram of a soft-handled packaging bag according to an embodiment of the present utility model;

[0015] Figure 9 This is a schematic diagram of the baffle structure according to an embodiment of the present utility model;

[0016] Figure 10 This is a schematic diagram of the working function of the baffle structure in an embodiment of this utility model. Figure 1 ;

[0017] Figure 11 This is a schematic diagram of the working function of the baffle structure in an embodiment of this utility model. Figure 2 ;

[0018] Figure 12 This is a schematic diagram of the side protective bag mechanism in an embodiment of the present invention;

[0019] Figure 13 This is a schematic diagram of the side protective bag mechanism in an embodiment of the present invention. Figure 1 ;

[0020] Figure 14 This is a schematic diagram of the side protective bag mechanism in an embodiment of the present invention. Figure 2 ;

[0021] Figure 15 This is a schematic diagram of the flipping of the protective bag plate in the side protective bag mechanism of this utility model embodiment;

[0022] Figure 16 This is a schematic diagram of the rotating bag-retrieving mechanism according to an embodiment of the present invention;

[0023] Figure 17 This is a schematic diagram of the bag-opening mechanism in an embodiment of the present utility model;

[0024] Figure 18 The three-dimensional structure of the bag-opening mechanism in this embodiment of the utility model Figure 1 ;

[0025] Figure 19 The three-dimensional structure of the bag-opening mechanism in this embodiment of the utility model Figure 2 ;

[0026] Figure 20 This is a schematic diagram of the bag-transfer mechanism in an embodiment of the present invention. Figure 1 ;

[0027] Figure 21 This is a schematic diagram of the bag-transfer mechanism in an embodiment of the present invention. Figure 2 ;

[0028] Figure 22 This is a schematic diagram of the rotating bag-taking mechanism, the bag-opening mechanism, and the bag-moving mechanism in an embodiment of this utility model;

[0029] Figure 23 This is a schematic diagram of the bag-holding mechanism and bag-patting mechanism in an embodiment of this utility model. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0031] Example 1: As Figure 1-23 As shown, a soft-handle packaging bag packaging unit is provided, including a bag-pushing mechanism, a bag-blocking mechanism B, a rotating bag-picking mechanism F, and a bag-moving opening mechanism D arranged sequentially along the conveying direction of the soft-handle packaging bags. A side-protecting bag mechanism C is arranged below the bag-pushing mechanism, and a bag-opening mechanism E is arranged above the bag-picking opening mechanism. The bag-blocking mechanism and the side-protecting bag mechanism form a packaging bag discharge space for limiting each soft-handle packaging bag A3. The bag-pushing mechanism includes a bag-hanging mechanism A1 for storing the soft-handle packaging bags and a bag-pushing mechanism A2 for pushing each soft-handle packaging bag toward the bag-picking station one by one towards the bag-blocking mechanism.

[0032] The working steps are as follows: (1) Hang the outer soft handles of multiple soft-handled packaging bags on the hanging rod of the bag hanging mechanism; (2) The bag pushing mechanism pushes each soft-handled packaging bag outward along the length of the hanging rod, so that the outermost soft-handled packaging bag is inside the bag blocking mechanism. The position inside the bag blocking mechanism is the bag picking station. At the same time, each soft-handled packaging bag is in the packaging bag discharge space formed between the bag blocking mechanism and the side bag protection mechanism. The packaging bag discharge space can ensure that the soft handle packaging bag is in a vertical state during transportation; (3) The rotating bag picking mechanism takes out the soft handle packaging bag from the bag picking station, rotates it 180 degrees and sends it to the front clamping cylinder assembly of the bag transfer mechanism; (4) The front clamping cylinder of the bag transfer mechanism transports the soft handle packaging bag to the bag opening station, and the bag opening mechanism opens the bag opening of the soft handle packaging bag; (5) The bag support plate assembly of the bag transfer mechanism is inserted into the bag opening, and the soft handle packaging bag is clamped by the rear clamping cylinder assembly; (6) The rear clamping... The bag cylinder assembly continues to transport the soft handle packaging bag with the bag opening open to the filling station, so that the bag opening of the soft handle packaging bag is put into the filling port of the filling equipment and fixed, and the material is filled into the soft handle packaging bag; (7) After the material filling is completed, the bag pulling and clamping cylinder assembly takes the soft handle packaging bag filled with material, straightens the bag opening of the soft handle packaging bag, and transports the soft handle packaging bag to the bag guiding mechanism; (8) The soft handle packaging bag filled with material is transported to the folding and sewing station, and output after folding the bag opening and sewing the bag.

[0033] Unlike common bag storage mechanisms, this device employs a bag pushing mechanism that ensures there is always a bag available for retrieval at the bag retrieval position; a side bag protection mechanism that ensures the bag opening height and width are basically consistent during bag retrieval; a bag blocking mechanism that positions the bag and prevents the next bag from being pulled out during retrieval; a rotating bag retrieval mechanism that enables alternating bag retrieval, which is efficient and stable; and a three-section bag moving mechanism that performs the functions of receiving, opening, and placing bags, with smooth operation that effectively avoids soft handles during bag retrieval, opening, filling, and conveying operations.

[0034] Example 2: Based on Example 1, in this embodiment of the utility model, the bag-hanging mechanism includes a bag-hanging mechanism A1 for suspending multiple soft-handled packaging bags, and a bag-pushing mechanism A2 is provided above the bag-hanging mechanism to press down the soft-handled packaging bags, so that the outermost soft-handled packaging bag A3 on the bag-hanging mechanism is kept in a position close to the outer end of the bag-hanging mechanism.

[0035] The aforementioned soft-handle packaging bag A3 includes a bag body A31 and soft handles located on both sides of the bag body. One soft handle is the outer soft handle A32, and the other soft handle is the inner soft handle A33. The outer soft handle is suspended on the bag hanging rod of the bag hanging mechanism, while the inner soft handle is not suspended on the bag hanging rod and generally hangs down naturally. The bag hanging requirement is that only the outer soft handle is hung, and the inner soft handle must be ensured to hang down. The two soft handles of the packaging bags should not be stacked as much as possible.

[0036] In this embodiment of the utility model, the bag hanging mechanism A1 includes a bag hanging frame A101, a bag hanging mounting base plate A102, and at least two bag hanging rods A103 spaced apart on the bag hanging mounting base plate. One bag hanging rod corresponds to the bag pushing mechanism. The bag hanging frame and the bag hanging mounting base plate are connected by a bag hanging sliding assembly A104. A bag hanging switching cylinder A105 is provided below the bag hanging mounting base plate to drive the bag hanging base plate and the bag hanging rods to move. When the soft handle packaging bag on one bag hanging rod is used up, the soft handle packaging bag on the other hanging rod is switched to move to the position of the bag pushing mechanism. The bag hanging switching cylinder is connected to the bag hanging mounting base plate by a bag hanging switching cylinder ear seat A106. The bag hanging switching cylinder ear seat is installed on the bag hanging mounting base plate, and the output shaft of the bag hanging switching cylinder is hinged to the bag hanging switching cylinder ear seat.

[0037] In this embodiment of the utility model, the bag hanging sliding assembly A104 includes a bag hanging slider A1041 disposed behind the bag hanging mounting base plate, and a bag hanging slide rail A1042 disposed on the side of the bag hanging frame near the bag hanging slider. The bag hanging slider and the bag hanging slide rail slide in a sliding fit. The bag hanging switching cylinder can push the bag hanging mounting base plate and the two bag hanging rods to move along the bag hanging slide rail to realize the bag hanging compartment switching function.

[0038] In this embodiment of the utility model, a bag-hanging brush A107 is provided near the outer end of the bag-hanging rod; the bag-hanging brush plays a limiting role on the soft handle of the packaging bag, reducing the probability of taking the next bag out when taking out the bag.

[0039] In this embodiment of the utility model, the bag hanging rod A103 includes two spaced straight rods A1031, and an arc-shaped block A1032 is provided at the outer end of the two straight rods; a soft-handled bag is hung on the bag hanging rod, and the smooth arc-shaped block is installed at the end of the bag hanging rod to facilitate workers to hang the bag and the bag retrieval mechanism to retrieve the bag; the inner ends of the two straight rods are connected to the bag hanging mounting base plate; the bag hanging brush is installed in the gap between the two straight rods, and the upper surface of the bag hanging brush is higher than the upper surface of the straight rod.

[0040] In this embodiment of the utility model, the bag pushing mechanism A2 includes a bag pushing machine base A201, a lifting bag pushing module A202, and a bag pushing cylinder A203. The lifting bag pushing module and the bag pushing machine base are slidably engaged via a bag pushing sliding component A204. The bag pushing cylinder is used to drive the lifting bag pushing module to move along the length direction of the bag pushing mechanism.

[0041] In this embodiment of the utility model, the lifting and pushing bag module A202 includes a pushing bag cylinder fixing plate A2021, a guide shaft mounting seat A2022, a lifting guide shaft A2023, and a pushing bag plate A2024 arranged sequentially from top to bottom. The upper end of the lifting guide shaft is slidably engaged with a linear bearing A2025 disposed on the guide shaft mounting seat, and the lower end of the lifting guide shaft is connected to the pushing bag plate. Pushing bag lifting cylinders A2026 for driving the pushing bag plate to rise and fall are disposed on both sides of the guide shaft mounting seat.

[0042] The aforementioned pusher plate A2024 has an "E" shaped cross section, meaning that the lower part of the pusher plate is provided with an avoidance groove A2027 to avoid the two hanging bag rods, thereby allowing the protrusion at the lower part of the pusher plate to extend downward and contact the inner side of the hanging soft handle packaging bag.

[0043] In this embodiment of the utility model, one end of the push-bag cylinder is connected to the lower part of one side of the push-bag cylinder, and the telescopic end of the push-bag cylinder is connected to the push-bag cylinder fixing plate via the push-bag cylinder connecting seat A2028.

[0044] In this embodiment of the utility model, a bag-pushing lifting cylinder seat A2029 is provided on both sides of the guide shaft mounting seat, and the bag-pushing cylinder is fixed on the bag-pushing lifting seat.

[0045] In this embodiment of the utility model, the bag pushing sliding assembly A204 includes a bag pushing slider A2041 disposed on the bag pushing cylinder fixing plate and a bag pushing slide rail A2042 disposed below the bag pushing machine base, wherein the bag pushing slider and the bag pushing slide rail are slidably engaged.

[0046] In this embodiment of the invention, when the bag-hanging mechanism is working: the outer soft handle of the soft-handled packaging bag is filled with two bag-hanging rods, one of which corresponds to the working position of the bag-pushing mechanism; after the worker completes the bag-hanging work, the bag-pushing cylinder of the bag-pushing mechanism extends to its longest position, and the bag-pushing cylinder drives the bag-pushing plate to descend, so that the bag-pushing plate is located behind the last soft-handled packaging bag. Then the bag-pushing cylinder retracts, pushing the soft-handled packaging bag hanging on the bag-pushing rod towards the position of the bag-hanging rod near the bag-hanging brush, until the outer soft handle of the foremost soft-handled packaging bag is moved as close as possible to the position of the bag-hanging brush at the outer end of the bag-hanging rod. This confines all the soft-handled bags between the bag-hanging brush and the bag-pushing plate. As the first soft-handled bag is removed, the bag-pushing plate gradually moves closer to the bag-hanging brush, ensuring that a soft-handled bag is always in contact with the bag-hanging brush for easy bag removal. When all the soft-handled bags on a bag-hanging bar are used up, the bag-pushing mechanism resets, and the bag-hanging switching cylinder drives the bag-hanging mounting plate and bag-hanging bar to move away from the bag-pushing mechanism. Meanwhile, another bag-hanging bar full of soft-handled bags moves to the position of the bag-pushing mechanism, thus realizing the bag-hanging switching function of the bag-hanging bar.

[0047] Example 3: Based on Example 1, in this embodiment of the utility model, the bag-blocking mechanism B includes a bag-hanging rod A103 and a plurality of soft-handled packaging bags A3 suspended on the bag-hanging rod. The outermost soft-handled packaging bags are provided with rotatable bag-blocking plates B1 on both sides to limit the soft-handled packaging bags. The distance between the two bag-blocking plates is adjustable.

[0048] When the bag-blocking mechanism is working: Multiple soft-handle bags are suspended by individual handles on a hanging rod, which is then moved to the bag-blocking mechanism's position. First, the distance between the two bag-blocking plates is adjusted according to the width of the soft-handle bags to accommodate bags of the appropriate size. This adjustment is achieved by a bag-blocking opening and closing cylinder driving the two bag-blocking plates to move left and right. A bag-blocking rotation cylinder then drives the two bag-blocking plates to swing downwards, creating a limiting space for the soft-handle bags. When the bag-pushing mechanism pushes all the soft-handle bags suspended on the hanging rod towards the bag-blocking plates until the outermost bag stops at the bag-blocking plate, it is in the optimal bag-picking position. The handle of the soft-handle bag is positioned at the pusher brush position, facilitating the subsequent bag-picking mechanism to pick up the outermost bag for retrieval.

[0049] When the soft-handled bags on the bag-hanging rod are used up and it is necessary to switch bag storage, the bag-hanging rod can be replaced when it is full of soft-handled bags. The bag-blocking rotary cylinder drives the two bag-blocking plates to swing upward, leaving space for the bag-hanging rod to move and avoid collision.

[0050] In this embodiment of the utility model, it also includes a bag-blocking opening and closing cylinder fixing frame B2 and a bag-blocking opening and closing cylinder B3 installed at the bottom of the bag-blocking opening and closing cylinder fixing frame. The output shafts on both sides of the bag-blocking opening and closing cylinder are provided with bag-blocking moving blocks B4. The bag-blocking moving blocks are connected to the bag-blocking plates on the corresponding sides via a bag-blocking rotating assembly B5.

[0051] In this embodiment of the utility model, the bag-blocking rotating assembly B5 includes a bag-blocking rotating cylinder fixing frame B501 installed on the outside of the bag-blocking moving block and a bag-blocking rotating cylinder B502 disposed on the bag-blocking rotating cylinder fixing frame, wherein the driving end of the bag-blocking rotating cylinder is connected to the bag-blocking plate.

[0052] In this embodiment of the utility model, the bag baffle B1 includes a swing arm B101, a first side plate B102, a second side plate B103, and a top plate B104. The top plate is connected to the middle of the swing arm, the first side plate is connected to the swing arm and the second side plate respectively, and the first side plate is connected to the second side plate. The top plate has an upturned part B105 in front. The top plate, the first side plate, the second side plate, and the swing arm of the bag baffles on both sides form a limiting space for the soft handle packaging bag. The angle between the first side plate and the second side plate can be 120 degrees to 150 degrees, so that the second side plates on both sides form an outward octagonal structure to facilitate the movement of the soft handle packaging bag into the limiting space.

[0053] In this embodiment of the utility model, a push-bag brush B8 is installed below the push-bag detection switch mounting plate, and the push-bag brush extends to the bag hanging brush of the bag hanging rod; the push-bag brush can effectively reduce the probability of bringing the next bag out when taking out a bag.

[0054] In this embodiment of the utility model, the outer end of the bag hanging rod extends outward from the bottom of the bag opening and closing cylinder. The bag hanging rod A103 includes two straight rods A1031 spaced apart, and the outer ends of the two straight rods are provided with arc-shaped blocks A1032. The soft-handled packaging bag is hung on the bag hanging rod, and the smooth arc-shaped blocks are installed at the end of the bag hanging rod to facilitate workers to hang and take the bags.

[0055] In this embodiment of the utility model, the soft handle packaging bag A3 includes a bag body A31, an outer soft handle A32 and an inner soft handle A33, with the outer soft handle suspended on a bag hanging rod.

[0056] In another embodiment of this utility model, a bag push detection switch mounting plate B6 is installed on the side of the bag opening and closing cylinder near the bag hanging rod, and a photoelectric switch B7 is installed on the bag push detection switch mounting plate; the photoelectric switch is prior art.

[0057] When the bag pushing mechanism pushes the soft-handled bag to the end of the hanging bar, the outermost soft-handled bag is sensed by the photoelectric switch, and the bag pushing mechanism stops pushing the bag, so that the outermost soft-handled bag stops at the bag stop plate, which is the optimal bag picking position; the bag pushing mechanism can be a bag pushing plate driven by a cylinder, which is electrically connected to the photoelectric switch.

[0058] Example 4: Based on Example 1, in this embodiment of the present invention, the side bag protection mechanism C includes a bag protection mounting frame C1 and two bag protection width adjustment plates C2 disposed on the bag protection mounting frame. Each bag protection width adjustment plate is provided with a flip-able bag protection plate C3 above it. The bag protection plate is rotatably engaged with the bag protection width adjustment plate C2 via a bag protection rotating frame C4. A bag protection flipping cylinder C5 is disposed below the bag protection width adjustment plate. The piston guide rod of the bag protection flipping cylinder is hinged to the bag protection rotating frame.

[0059] The protective bag panels are symmetrically designed, allowing them to be flipped over simultaneously or on one side only.

[0060] When the side bag protection mechanism is working: When the handles of multiple soft-handled packaging bags A3 are suspended on the bag hanging rod, the multiple soft-handled packaging bags need to be pushed towards the bag picking station along the length of the bag hanging rod. The two vertically erected bag protection plates and top bag plates play a limiting role for these soft-handled packaging bags, thereby ensuring that the height and width of each soft-handled packaging bag are basically the same when picking up the bag. When the bag protection plates need to be erected, the two bag protection flipping cylinders drive the bag protection plates to flip upward and erect through the bag protection rotating frame. When the bag protection plates need to be flattened, the two bag protection flipping cylinders drive the bag protection plates to flip downward and flatten through the bag protection rotating frame.

[0061] To accommodate soft-handle packaging bags of different sizes, the spacing between the two protective bag plates can be adjusted using a protective bag width adjustment component. When the protective bag width adjustment component is in operation, the protective bag screw is rotated via a handwheel, which in turn moves the two protective bag width adjustment plates closer together or further apart via the protective bag slider and the moving seat, thus adapting to the different widths of soft-handle packaging bags for protection. At the same time, to accommodate the different sizes of soft-handle packaging bags, a top bag cylinder drives the top bag plate to move up and down, allowing the top bag plate to adapt to different soft-handle packaging bags. A protective bag switching cylinder drives the protective bag mounting frame to move up or down as a whole, adapting to the height of the soft-handle packaging bags.

[0062] In this embodiment of the utility model, a bag width adjustment component C6 is provided between the bag width adjustment plate and the bag mounting frame. The bag width adjustment component C6 includes a bag screw C61 and a bag slide rail C62 respectively disposed on both sides of the bag mounting frame. A movable seat C63 is provided below one side of the bag width adjustment plate, and the movable seat is threadedly engaged with the bag screw. A bag slider C64 is provided below the other side of the bag width adjustment plate, and the bag slider is slidably engaged with the bag slide rail.

[0063] Both protective bag plates have an input and output end in a figure-eight shape to facilitate the movement of soft-handled bags between or out of the two protective bag plates.

[0064] In this embodiment of the utility model, a seated bearing C7 is provided above the protective bag mounting bracket C1, the protective bag screw passes through the seated bearing and rotates with it, and a handwheel C8 is provided at the outer end of the protective bag screw.

[0065] In this embodiment of the utility model, the protective screw C61 is provided with threaded portions with opposite directions at both ends, and the internal threaded holes of the two movable seats respectively cooperate with the corresponding threaded portions. When the protective screw rotates, the two movable seats move closer or further away synchronously.

[0066] In another embodiment of this utility model, there are two movable seats. One of the movable seats of the protective bag width adjustment plate is provided with a positive thread nut C65 below the movable seat, and the other of the movable seats of the protective bag width adjustment plate is provided with a negative thread nut C66 below the movable seat. The positive thread nut and the negative thread nut respectively cooperate with the threaded parts on both sides of the protective bag screw.

[0067] In this embodiment of the utility model, a top bag plate C9 is provided between the output ends of the two protective bag plates, and a top bag mounting frame C10 is provided on the protective bag mounting frame. The top bag mounting frame is equipped with a top bag cylinder C11 for driving the top bag plate to rise and fall.

[0068] The aforementioned top bag panel includes an L-shaped top bag panel and a downward-folding curved top bag panel.

[0069] In this embodiment of the utility model, a protective bag frame C12 is provided below the protective bag mounting frame, and a protective bag switching cylinder C13 is installed on the protective bag mounting frame to drive the protective bag mounting frame to lift and lower as a whole.

[0070] In this embodiment of the utility model, the protective bag rotating frame C4 includes a protective bag rotating frame shaft C401 and a plurality of arc-shaped rotating frame arms C402 disposed on the protective bag rotating frame shaft. The arc-shaped rotating frame arms are fixedly connected to the outer side of the protective bag plate. The protective bag rotating frame shaft is rotatably engaged with two second joint bearings C403 disposed on the protective bag width adjustment plate. A rotating frame connecting rod C404 is provided in the middle of the protective bag rotating frame shaft. The rotating frame connecting rod is hinged to the piston guide rod of the protective bag flipping cylinder.

[0071] In this embodiment of the utility model, two first joint bearings C14 are provided below the protective bag width adjustment plate, and the protective bag flipping cylinder is rotated and engaged with the first joint bearings via a first rotating shaft.

[0072] In this embodiment of the utility model, a hanging rod A103 is provided above the side protective bag mechanism, and the outer soft handle of the soft handle packaging bag is suspended on the hanging rod.

[0073] The soft-handle packaging bag A3 includes a bag body A31, an outer soft handle A32, and an inner soft handle A33, with the outer soft handle suspended on a hanging bar.

[0074] Example 5: Based on Example 1, in this embodiment of the utility model, the rotating bag-retrieving mechanism includes a rotating bag-retrieving mounting plate F1 that can rotate 180 degrees at a time and two bag-retrieving cylinders F2 disposed above the rotating bag-retrieving mounting plate. The output ends of the two bag-retrieving cylinders are arranged in opposite directions, and each of the output ends of the two bag-retrieving cylinders is provided with a vacuum suction bag assembly F3.

[0075] When the rotating bag-picking mechanism is working: the bag-picking cylinder near the bag-hanging bar extends, driving the vacuum bag-suction assembly to approach the soft-handled packaging bag at the outermost end of the bag-hanging bar. The bag-picking suction cup of the vacuum bag-suction assembly maintains negative pressure to suck up the soft-handled packaging bag. The bag-picking cylinder retracts, removing the soft-handled packaging bag from the outermost end of the bag-hanging bar. Then, the rotating cylinder rotates 180 degrees, and the bag-picking cylinder extends again to transport the soft-handled packaging bag to the bag-transfer mechanism for the next conveying process. Meanwhile, the vacuum bag-suction assembly on the other side repeatedly removes the soft-handled packaging bag from the bag-hanging bar. This cycle of bag picking, rotating 180 degrees, and then bag dispensing is repeated. The vacuum bag-suction assembly on one side sucks up the bag, and the vacuum bag-suction assembly on the other side dispenses the bag, which helps improve work efficiency.

[0076] In this embodiment of the present invention, the vacuum suction bag assembly F3 includes a bag-taking cylinder guide rod F31 disposed at the output end of the bag-taking cylinder, a bag-taking suction cup tube frame F32 disposed on the outside of the bag-taking cylinder guide rod, a bag-taking handle baffle F33 disposed on the upper part of the bag-taking suction cup tube frame, and two bag-taking suction cups F34 disposed on the outer part of the bag-taking suction cup tube frame; the two bag-taking suction cups are connected to an external vacuum pump via bag-taking suction cup tubes.

[0077] In this embodiment of the invention, the rotating bag-retrieving mounting plate is driven to rotate by a rotating cylinder F4.

[0078] In this embodiment of the utility model, a rotary cylinder mounting column F5 is provided below the rotary cylinder.

[0079] In this embodiment of the utility model, a vacuum suction bag assembly on one bag-removing cylinder is used to suction the soft-handled packaging bag on the hanging bag rod A103 and remove it, while a vacuum suction cup assembly on another bag-removing cylinder is used to transfer the soft-handled packaging bag A3 to the bag-transferring mechanism D.

[0080] In another embodiment of this utility model, a photoelectric bracket F6 is provided on the upper surface of the rotating cylinder mounting column near the bag hanging rod. A detection photoelectric device F7 is provided on the photoelectric bracket. When the soft handle packaging bag is at the end of the bag hanging rod and the detection photoelectric device can detect the packaging bag, the bag taking cylinder extends and sucks the packaging bag with the negative pressure of the vacuum suction cup assembly, maintains negative pressure contraction and takes the packaging bag out from the bag hanging rod.

[0081] Example 6: Based on Example 1, in this embodiment of the present invention, a bag-opening mechanism is provided above the bag-moving mechanism. The bag-opening mechanism E includes a bag-opening cylinder mounting plate E1 and two bag-opening components E2 arranged symmetrically below the bag-opening cylinder mounting plate. Each bag-opening component has a lifting handle cylinder component E3 in the middle. Before the soft handle packaging bag rises and is between the two bag-opening components, the lifting handle cylinder component extends to block the soft handle, so that the bag-opening component can avoid the soft handle when sucking up the bag.

[0082] When the bag-opening mechanism is in place: Soft-handle packaging bag A3 is conveyed to the bottom of the bag-opening station. As the soft-handle packaging bag rises to the bag-opening station, the handle cylinders on both sides drive the handle baffles to extend towards the soft-handle packaging, blocking the soft handles and preventing them from moving upwards, keeping them drooping and preventing them from interfering with the operation of the bag-opening suction cup assembly. Once the soft-handle packaging bag is fully in the bag-opening station, the bag-opening cylinder drives the bag-opening drive frame and the bag-opening suction cup assembly to extend. The suction cup assembly then attaches to both sides of the opening of the soft-handle packaging bag. Finally, the bag-opening cylinder retracts, causing the soft-handle packaging bag to open.

[0083] It is worth noting that the bag clamping auxiliary plate helps to flatten the opening of the previous soft-handled packaging bag as it is about to enter the bag opening station. At the same time, the bag lifting cylinder of the bag moving mechanism descends, which drives the soft-handled packaging bag on the front bag clamping cylinder assembly to rise and fall synchronously, so that the soft handle can be pulled down to a hanging position.

[0084] In this embodiment of the utility model, the bag-opening assembly E2 includes a bag-opening cylinder E21 mounted on a bag-opening cylinder mounting plate E1. A bag-opening drive frame E22 is provided at the output end of the bag-opening cylinder. The bag-opening drive frame is arc-shaped, and a bag-opening suction cup assembly E23 is provided at the lower part of the bag-opening drive frame. The bag-opening suction cup assembly is existing technology. The bag-opening suction cup assembly includes two bag-opening negative pressure suction cups, a suction cup negative pressure pump, and a connecting pipeline. The suction cup negative pressure pump draws suction, causing the bag-opening negative pressure suction cups to generate suction force, thereby adhering to the soft handle packaging bag, and then opening the soft handle packaging bag.

[0085] In this embodiment of the utility model, the lever cylinder assembly E3 is inclined, and the lever cylinder assemblies on both sides are in an inverted V-shape; the angle between the lever cylinder assembly and the horizontal line can be 30-60 degrees.

[0086] In this embodiment of the utility model, the lever cylinder assembly E3 includes a lever cylinder mounting plate E31 and a lever cylinder E32 disposed on the lever cylinder mounting plate. The output end of the lever cylinder is provided with a handle stop block E33, and the inner side of the handle stop block is provided with a handle baffle E34 to block the handle of the soft handle packaging bag.

[0087] The aforementioned lever cylinder mounting plate can be fixed to the bag-opening cylinder mounting plate or to the bag-opening cylinder itself.

[0088] In this embodiment of the utility model, a bag clamping auxiliary arm E4 is provided on the side of the bag feeding end of the bag with soft handle on the bag mounting plate E1, and a bag clamping auxiliary plate E5 is provided on the lower side of the bag clamping auxiliary arm; the cross-section of the bag clamping auxiliary arm and the bag clamping auxiliary plate are both L-shaped.

[0089] In this embodiment of the utility model, a bag-opening mechanism mounting frame E6 is provided above the bag-opening cylinder mounting plate.

[0090] Example 7: Based on Example 1, in this embodiment of the present invention, a bag-shifting mechanism D is provided below the bag-opening mechanism; the bag-shifting mechanism is provided with a bag-opening station D16, a filling station D17 and a bag-guiding station D18 arranged sequentially from front to back in the middle of the bag-shifting mechanism. The bag-opening mechanism is located at the bag-opening station, and a filling device D19 for filling materials into the soft-handle packaging is provided at the filling station.

[0091] In this embodiment of the utility model, the bag-transferring mechanism D includes two symmetrically arranged bag-transferring machine bases D1 and a bag-transferring mounting plate D2 disposed on each bag-transferring machine base. The bag-transferring mounting plate is connected to the bag-transferring machine base via a bag-transferring sliding assembly D3. The front and rear parts of the bag-transferring mounting plate are respectively provided with a bag-supporting mounting base D4 and a bag-pulling and clamping cylinder assembly D5. A bag-fitting lifting cylinder D6 is installed inside the bag-supporting mounting base D4. A bag-supporting lifting transition plate D10 is installed on the upper output shaft of the bag-fitting lifting cylinder. A front bag-clamping cylinder assembly D7, a bag-supporting plate assembly D8, and a rear bag-clamping cylinder assembly D9 are arranged sequentially from front to back on the bag-supporting lifting transition plate.

[0092] In this embodiment of the present invention, the front bag clamping cylinder assembly D7 includes a front bag clamping cylinder D71 and two front bag clamping bodies D72 disposed on the inner output end of the front bag clamping cylinder. The two front bag clamping bodies can rotate relative to each other to clamp or rotate in opposite directions to separate. Each front bag clamping body is provided with a front bag opening guard plate D73 on its exterior.

[0093] In this embodiment of the utility model, the bag support plate assembly D8 includes a bag support plate D81 and a bag support plate lifting cylinder D82 for driving the bag support plate to rise and fall. The bag support plate D81 includes a bag support connecting arm D811 and an L-shaped bag support bracket D812 connected to the inner side of the bag support connecting arm.

[0094] In this embodiment of the utility model, the rear bag clamping cylinder assembly D9 includes a rear bag clamping cylinder D91 and two rear bag clamping bodies D92 disposed on the inner output end of the rear bag clamping cylinder. The two rear bag clamping bodies can rotate relative to each other to clamp or rotate away from each other to separate. Each rear bag clamping body is provided with a rear bag opening guard plate D93 on its outside.

[0095] In this embodiment of the present invention, the bag-clamping cylinder assembly D5 includes a bag-clamping base D51 and a clamping cylinder assembly D52 disposed on the bag-clamping base. The clamping cylinder assembly D52 includes a clamping sliding plate D521 and a clamping cylinder D522 disposed on the clamping sliding plate. The output end of the clamping cylinder is provided with two clamping opening and closing bodies D523. A clamping guard plate D524 is installed on the clamping opening and closing body. A bag-clamping electric cylinder D525 for driving the clamping cylinder assembly to move left and right is installed on the outside of the bag-clamping base. The telescopic shaft of the bag-clamping electric cylinder is hinged to the clamping cylinder assembly. The bag-clamping base and the clamping sliding plate are connected by a bag-clamping sliding assembly. The bag-clamping sliding assembly includes a bag-clamping slide rail D526 disposed on the bag-clamping base and a bag-clamping slider D527 disposed below the bag-clamping sliding plate. The bag-clamping slide rail and the bag-clamping slider are slidably engaged.

[0096] In this embodiment of the utility model, the bag transfer sliding assembly D3 includes a bag transfer slide rail D31 disposed on the bag transfer mouth machine base and a bag transfer slider D32 disposed below the bag transfer upper mounting plate, wherein the bag transfer slide rail and the bag transfer slider are slidably engaged;

[0097] In this embodiment of the utility model, an engineering drag chain D11 is provided on the bag transfer machine base. One end of the engineering drag chain is fixed on the bag transfer machine base, and the other end is fixed on the bag transfer mounting plate.

[0098] In this embodiment of the utility model, a linkage block D12 is provided on the upper mounting plate of the pack transfer device. The linkage block is driven by the pack transfer drive device to move the entire upper mounting plate of the pack transfer device forward and backward along the pack transfer slide rail. The pack transfer drive device here includes, but is not limited to, a cylinder, a linear slide structure, and other drive devices.

[0099] In this embodiment of the utility model, the surface of the mounting plate on the transfer package is provided with a solenoid valve assembly D13.

[0100] In this embodiment of the utility model, a bag-holding mechanism D14 is provided below the bag-pulling and bag-clamping mechanism. The bag-holding mechanism includes two symmetrically arranged bag-holding plates D141, each of which is driven by a bag-holding electric cylinder D142 located on the outer side. The bag-holding mechanism can move forward and backward. A bag-holding base D143 is provided below the bag-holding mechanism. The bag-holding mechanism and the bag-holding base are connected by a bag-holding sliding component.

[0101] In this embodiment of the utility model, a bag-tapping mechanism D15 is provided below the filling station. The bag-tapping mechanism includes a bag-tapping plate D151 and a bag-tapping electric cylinder D152 for driving the bag-tapping plate to rise and fall.

[0102] In this embodiment of the utility model, when the bag-moving mechanism is working: the rotating bag-picking mechanism removes the outermost soft-handled packaging bag from the bag-hanging rod and rotates it 180 degrees to transport it to the position of the front bag-clamping cylinder assembly of the bag-moving mechanism. At this time, the bag-feeding lifting cylinder rises, driving the upper mounting plate of the bag-moving mechanism and the front bag-clamping cylinder assembly to rise synchronously. Then, the front bag-clamping cylinder assembly clamps the two sides of the bag opening of the soft-handled packaging bag, and the rotating bag-picking cylinder releases it. Then, the bag-feeding lifting cylinder descends, driving the upper mounting plate of the bag-moving mechanism and the front bag-clamping cylinder assembly to descend synchronously. The upper mounting plate drives the front bag-clamping cylinder assembly to move towards the bag-opening station. When it moves to below the bag-opening station, the bag-feeding lifting cylinder rises, driving the soft-handled packaging bag to rise to the bag-opening station.

[0103] The pneumatic cylinder of the bag-opening mechanism drives the handle baffle to extend towards the soft handle packaging bag, so that the handle baffle blocks the soft handle of the soft handle packaging bag, preventing the soft handle from moving upward with the soft handle packaging bag and preventing the soft handle from affecting the bag-opening suction cup assembly's bag suction work. When the soft handle packaging bag is completely in the bag-opening station, the bag-opening cylinder drives the bag-opening drive frame and the bag-opening suction cup assembly to extend. The bag-opening suction cup assembly sucks on both sides of the opening of the soft handle packaging bag. Finally, the bag-opening cylinder retracts, causing the bag opening of the soft handle packaging bag to open.

[0104] After the bag opening mechanism opens the bag, the front bag clamping cylinder assembly releases the packaging bag. The upper mounting plate drives the front bag clamping cylinder assembly, the bag support plate assembly, and the rear bag clamping cylinder assembly to move forward synchronously. At this time, the rear bag clamping cylinder assembly and the bag support plate assembly are in the bag opening position. The bag support plate lifting cylinder of the bag support plate assembly retracts, driving the bag support plate to descend, so that the bag support plate is inserted into the bag opening of the soft handle packaging bag, and the rear bag clamping cylinder assembly clamps the soft handle packaging bag.

[0105] The upper mounting plate drives the rear bag clamping cylinder assembly and the bag support plate assembly to move backward to the filling station. The bag lifting cylinder rises, putting the bag opening of the soft handle packaging bag onto the filling port of the filling station, and fixing it through the filling bag clamping mechanism of the filling equipment (the filling bag clamping mechanism can be a pair of filling bag clamping bodies and a filling bag clamping electric cylinder to drive the opening and closing of the filling bag clamping bodies). Then, the soft handle packaging bag is filled with rice. In addition, during the filling process, the bag patting plate of the bag patting mechanism strikes the bottom of the soft handle packaging bag to make the filling more even.

[0106] The bag support plate lifting cylinder of the bag support plate assembly drives the bag support plate to rise upwards, avoiding the bag opening of the soft handle packaging bag; the rear bag clamping cylinder assembly releases; the upper mounting plate drives the rear bag clamping cylinder assembly, the bag support plate assembly, and the bag pulling and clamping cylinder assembly to move forward synchronously, so that the rear bag clamping cylinder assembly and the bag support plate assembly correspond to the bag opening station, while the bag pulling and clamping cylinder assembly corresponds to the filling station;

[0107] The bag clamping cylinder of the bag pulling and clamping cylinder assembly drives the two bag clamping opening and closing bodies to close and clamp the soft handle packaging bag filled with rice; the bag pulling cylinders on both sides push the bag clamping cylinder assembly to move away from the soft handle packaging bag, straightening the bag opening of the soft handle packaging bag.

[0108] Finally, the upper mounting plate drives the bag-pulling and clamping cylinder assembly and the soft-handle packaging bag to move backward. The bag-pulling and clamping cylinder assembly releases, transferring the soft-handle packaging bag to the next process, where the bag guiding mechanism continues to transport and package. When the soft-handle packaging bag is output from the filling station to the next process, the bag-holding plate of the lower bag-holding mechanism clamps the lower part of the soft-handle packaging bag and outputs it outward together synchronously.

[0109] It is worth noting that the above describes the working process of the bag-transfer mechanism for a single soft-handle packaging bag.

[0110] In actual operation, when the front clamping cylinder assembly conveys a soft-handled packaging bag to the bag opening station, the rear clamping cylinder assembly simultaneously conveys another soft-handled packaging bag that has already been successfully opened to the filling station for filling. The bag pulling and clamping cylinder assembly also simultaneously straightens the bag opening of the filled rice soft-handled packaging bag and outputs it to the bag guiding mechanism for the next process, such as conveying the bag, folding the bag opening, and sewing the bag.

[0111] When the front bag clamping cylinder assembly transports a soft-handled packaging bag to the position below the bag opening station, the bag lifting cylinder will drive the bag lifting transition plate to rise, causing the front bag clamping cylinder assembly and the rear bag clamping cylinder assembly to rise simultaneously. The soft-handled packaging bag on the front bag clamping cylinder assembly rises up and enters the bag opening station, where the bag opening mechanism unfolds the bag opening operation. The soft-handled packaging bag on the rear bag clamping cylinder assembly is at the filling station and also rises up to fit into the filling port of the filling station and be fixed.

[0112] Then the front bag clamping cylinder assembly and the rear bag clamping cylinder assembly reset again. The front bag clamping cylinder assembly then transports the new soft-handle packaging bag to the bag opening station, while the rear bag clamping cylinder assembly transports the soft-handle packaging bag to the filling station.

[0113] In this embodiment of the utility model, the soft-handle packaging bag A3 includes a bag body A31, an outer soft handle A32, and an inner soft handle A33.

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A soft-handle packaging bag packaging unit, characterized in that, The device includes a bag-pushing mechanism, a bag-blocking mechanism, a rotating bag-picking mechanism, and a bag-moving mechanism arranged sequentially along the conveying direction of the soft-handled packaging bags. A side-protecting bag mechanism is provided below the bag-pushing mechanism, and a bag-opening mechanism is provided above the bag-picking structure. The bag-blocking mechanism and the side-protecting bag mechanism form a packaging bag discharge space to limit the material discharge of each soft-handled packaging bag. The bag-pushing mechanism includes a bag-hanging mechanism for storing the soft-handled packaging bags and a bag-pushing mechanism for pushing each soft-handled packaging bag toward the bag-blocking mechanism toward the bag-picking station one by one.

2. The soft-handle packaging bag packaging unit according to claim 1, characterized in that, The bag-hanging mechanism includes a bag-hanging frame, a bag-hanging mounting base plate, and at least two bag-hanging rods spaced apart on the bag-hanging mounting base plate. One bag-hanging rod corresponds to a bag-pushing mechanism. The bag-hanging frame and the bag-hanging mounting base plate are connected via a bag-hanging sliding assembly. A bag-hanging switching cylinder is provided below the bag-hanging mounting base plate to drive the bag-hanging base plate and the bag-hanging rods to move. When the soft-handled bags on one bag-hanging rod are used up, the soft-handled bags on the other bag-hanging rod are switched to the position of the bag-pushing mechanism. The bag-hanging switching cylinder is connected to the bag-hanging mounting base plate via a bag-hanging switching cylinder lug. The bag-hanging sliding assembly includes a bag-hanging slider located behind the bag-hanging mounting base plate. A bag-hanging slide rail is provided on the side of the bag-hanging frame near the bag-hanging slider, and the bag-hanging slider slides in cooperation with the bag-hanging slide rail. A bag-hanging brush is provided near the outer end of each bag-hanging rod. Each bag-hanging rod includes two spaced-apart straight rods with arc-shaped blocks at their outer ends, and the inner ends of the two straight rods are connected to the bag-hanging mounting base plate.

3. The soft-handle packaging bag packaging unit according to claim 1, characterized in that, The bag pushing mechanism includes a bag pushing machine base, a lifting bag pushing module, and a bag pushing cylinder. The lifting bag pushing module is slidably engaged with the bag pushing machine base via a bag pushing sliding assembly. The bag pushing cylinder drives the lifting bag pushing module to move along the length of the bag pushing mechanism. The lifting bag pushing module includes, from top to bottom, a bag pushing cylinder fixing plate, a guide shaft mounting base, a lifting guide shaft, and a bag pushing plate. The upper end of the lifting guide shaft is slidably engaged with a linear bearing mounted on the guide shaft mounting base, and the lower end of the lifting guide shaft is connected to the bag pushing plate. Bag pushing lifting cylinders for driving the bag pushing plate to rise and fall are provided on both sides of the guide shaft mounting base. A clearance groove is provided at the lower part of the bag pushing plate. One end of the bag pushing cylinder is connected to the lower part of one side of the bag pushing cylinder, and the telescopic end of the bag pushing cylinder is connected to the bag pushing cylinder fixing plate via a bag pushing cylinder connecting seat. Bag pushing lifting cylinder seats are provided on both sides of the guide shaft mounting base, and the bag pushing cylinder is fixed on the bag pushing lifting seat. The bag pushing sliding assembly includes a bag pushing slider mounted on the bag pushing cylinder fixing plate and a bag pushing slide rail mounted below the bag pushing machine base, wherein the bag pushing slider and the bag pushing slide rail are slidably engaged.

4. The soft-handle packaging bag packaging unit according to claim 1, characterized in that, The bag-blocking mechanism includes a bag-hanging rod and a soft-handled packaging bag suspended on the bag-hanging rod. Rotatable bag-blocking plates are provided on both sides of the outermost soft-handled packaging bag to limit its movement. The distance between the two bag-blocking plates is adjustable. The bag-blocking mechanism also includes a bag-blocking opening and closing cylinder fixing frame and a bag-blocking opening and closing cylinder installed at the bottom of the fixing frame. Bag-blocking moving blocks are provided on both sides of the output shaft of the bag-blocking opening and closing cylinder. The bag-blocking moving blocks are connected to the corresponding bag-blocking plates via a bag-blocking rotating assembly. The bag-blocking rotating assembly includes a mounting... A bag-blocking rotating cylinder fixing frame is located outside the bag-blocking moving block, and a bag-blocking rotating cylinder is installed on the bag-blocking rotating cylinder fixing frame. The driving end of the bag-blocking rotating cylinder is connected to the bag-blocking plate. The bag-blocking plate includes a swing arm, a first side plate, a second side plate, and a top plate. The top plate is connected to the middle of the swing arm. The first side plate is connected to the swing arm and the second side plate respectively. The first side plate is connected to the second side plate. The top plate has an upward-curving part in front. The top plate, the first side plate, the second side plate, and the swing arm of the bag-blocking plates on both sides form a limiting space for the soft handle packaging bag.

5. The soft-handle packaging bag packaging unit according to claim 1, characterized in that, The side bag protection mechanism includes a bag protection mounting frame and two bag width adjustment plates mounted on the frame. Each bag width adjustment plate has a flip-up bag protection plate on top, which is rotatably engaged with the bag width adjustment plate via a bag rotation frame. A bag flipping cylinder is located below each bag width adjustment plate, and the piston guide rod of the cylinder is hinged to the bag rotation frame. A bag width adjustment assembly is provided between the bag width adjustment plate and the frame. The assembly includes a bag screw and a bag slide rail respectively located on both sides of the frame. A movable seat is located below one side of the adjustment plate, threadedly engaged with the screw. A bag slider is located below the other side of the plate, slidingly engaged with the slide rail. A bearing with a seat is located above the frame, through which the screw passes and rotates. A handwheel is located at the outer end of the screw. The screw has threads with opposite directions at both ends. The internal threaded holes of the moving seats respectively mate with the corresponding threaded parts. When the protective bag screw rotates, the two moving seats move closer or further away synchronously. A top bag plate is provided between the output ends of the two protective bag plates. A top bag mounting frame is provided on the protective bag mounting frame. The top bag mounting frame is equipped with a top bag cylinder for driving the top bag plate to rise and fall. A protective bag frame is provided below the protective bag mounting frame. A protective bag switching cylinder is installed on the protective bag frame for driving the protective bag mounting frame to rise and fall as a whole. The protective bag rotating frame includes a protective bag rotating frame shaft and multiple arc-shaped rotating frame arms set on the protective bag rotating frame shaft. The arc-shaped rotating frame arms are fixedly connected to the outer side of the protective bag plate. The protective bag rotating frame shaft is rotatably engaged with two second joint bearings set on the protective bag width adjusting plate. A rotating frame connecting rod is provided in the middle of the protective bag rotating frame shaft. The rotating frame connecting rod is hinged to the piston guide rod of the protective bag flipping cylinder. Two first joint bearings are provided below the protective bag width adjusting plate. The protective bag flipping cylinder is rotatably engaged with the first joint bearings via the first rotating shaft.

6. The soft-handle packaging bag packaging unit according to claim 1, characterized in that, The rotating bag-picking mechanism includes a rotating bag-picking mounting plate that can rotate 180 degrees at a time and two bag-picking cylinders disposed above the rotating bag-picking mounting plate. The output ends of the two bag-picking cylinders are arranged in opposite directions, and each output end of the bag-picking cylinder is provided with a vacuum suction bag assembly. The vacuum suction bag assembly includes a bag-picking cylinder guide rod disposed at the output end of the bag-picking cylinder. A bag-picking suction cup tube frame is disposed on the outside of the bag-picking cylinder guide rod. A bag-picking handle baffle is disposed on the upper part of the bag-picking suction cup tube frame, and a bag-picking suction cup is disposed on the outer part of the bag-picking suction cup tube frame. The rotating bag-picking mounting plate is driven to rotate by the rotating cylinder. A rotating cylinder mounting column is disposed below the rotating cylinder. The vacuum suction bag assembly on one bag-picking cylinder is used to suck up and remove the soft handle packaging bag on the bag hanging rod, and the vacuum suction cup assembly on the other bag-picking cylinder is used to transfer the soft handle packaging bag to the bag transfer mechanism.

7. The soft-handle packaging bag packaging unit according to claim 1, characterized in that, The bag-transfer mechanism includes two symmetrically arranged bag-transfer machine bases and a bag-transfer mounting plate mounted on each bag-transfer machine base. The bag-transfer mounting plate is connected to the bag-transfer machine base via a bag-transfer sliding assembly. The front and rear portions of the bag-transfer mounting plate are respectively provided with a bag-supporting mounting base and a bag-pulling and clamping cylinder assembly. A bag-feeding lifting cylinder is mounted inside the bag-supporting mounting base. A bag-supporting lifting transition plate is mounted on the upper output shaft of the bag-feeding lifting cylinder. A front bag-clamping cylinder assembly, a bag-supporting plate assembly, and a rear bag-clamping cylinder assembly are sequentially arranged from front to back on the bag-supporting lifting transition plate. The front bag-clamping cylinder assembly includes a front clamp... The bag clamping cylinder includes a bag clamping cylinder and two front bag clamping bodies located at the inner output ends of the front bag clamping cylinder. The two front bag clamping bodies can rotate relative to each other to clamp or rotate in opposite directions to separate. Each front bag clamping body is provided with a front bag opening guard plate on its exterior. The bag support plate assembly includes a bag support plate and a bag support plate lifting cylinder for driving the bag support plate to rise and fall. The bag support plate includes a bag support connecting arm and an L-shaped bag support bracket connected to the inner side of the bag support connecting arm. The rear bag clamping cylinder assembly includes a rear bag clamping cylinder and two rear bag clamping bodies located at the inner output ends of the rear bag clamping cylinder. The two rear bag clamping bodies can rotate relative to each other to clamp or rotate in opposite directions to separate. Each rear bag clamping body is provided with a rear bag opening guard plate on its exterior. The bag-clamping cylinder assembly includes a bag-clamping base and a clamping cylinder assembly mounted on the bag-clamping base. The clamping cylinder assembly includes a clamping sliding plate and a clamping cylinder mounted on the clamping sliding plate. The output end of the clamping cylinder is provided with two clamping opening and closing bodies, and a clamping guard plate is installed on the clamping opening and closing bodies. A bag-clamping electric cylinder for driving the clamping cylinder assembly to move left and right is installed on the outside of the bag-clamping base. The telescopic shaft of the bag-clamping electric cylinder is hinged to the clamping cylinder assembly. The bag-clamping base and the clamping sliding plate are connected by a bag-clamping sliding assembly. The bag-clamping sliding assembly includes a bag-clamping slide rail mounted on the bag-clamping base and a bag-clamping slider mounted below the bag-clamping sliding plate. The bag-clamping slide rail and the bag-clamping slider are slidably engaged.

8. The soft-handle packaging bag packaging unit according to claim 1, characterized in that, The bag-opening mechanism includes a bag-opening cylinder mounting plate and two bag-opening assemblies symmetrically arranged below the mounting plate. Each bag-opening assembly has a lifting handle cylinder assembly in its center. When the soft-handled packaging bag rises and is positioned between the two bag-opening assemblies, the lifting handle cylinder assembly extends to block the soft handle, allowing the bag-opening assembly to avoid the soft handle when sucking up the bag. Each bag-opening assembly includes a bag-opening cylinder mounted on the mounting plate. The output end of the bag-opening cylinder is equipped with a bag-opening drive frame. The lower part is provided with a bag-opening suction cup assembly; the lifting handle cylinder assembly is inclined; the lifting handle cylinder assembly includes a lifting handle cylinder mounting plate and a lifting handle cylinder disposed on the lifting handle cylinder mounting plate, the output end of the lifting handle cylinder is provided with a handle stop block, and the inner side of the handle stop block is provided with a handle baffle to block the handle of the soft handle packaging bag; the side of the bag-opening cylinder mounting plate near the feeding end of the soft handle packaging bag is provided with a bag clamping auxiliary arm, and the lower side of the bag clamping auxiliary arm is provided with a bag clamping auxiliary plate.

9. A soft-handle packaging bag packaging unit according to claim 1, characterized in that, The soft-handle packaging bag includes a bag body and soft handles on both sides of the bag body, one of which is an outer soft handle and the other is an inner soft handle.

Images