A filling packaging line

Abstract

The utility model discloses a kind of material filling packaging production lines, including rack, control mechanism, weighing and discharging mechanism, packaging bag placement bag storehouse, bag taking mechanism, bag sending mechanism, bag opening and bagging mechanism, circulating material filling mechanism, bag clamping and bag moving mechanism, bag supporting and bag guiding mechanism and packaging bag sealing mechanism;The circulating material filling mechanism includes vertical rotating frame, vertical rotating frame upper portion is provided with at least two first supports, one hopper is fixedly connected on each first support, the lower portion of each hopper is equipped with gate;Packaging bag is moved to bag opening and bagging mechanism by bag sending mechanism to open bag opening and rotate and be wrapped in the lower portion of gate, after packaging bag is filled or packaging bag is in the filling process vertical rotating frame rotates and switches position is in unloading bag state, the bag clamping and bag moving mechanism clamps packaging bag both sides and after filling packaging bag is sent to bag supporting and bag guiding mechanism, bag supporting and bag guiding mechanism moves filled packaging bag to sealing mechanism on.The utility model is high in degree of automation, and packaging efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment manufacturing technology, and in particular to a filling and packaging production line. Background Technology

[0002] In the field of granular material packaging production line manufacturing technology, materials need to be filled into packaging bags, and the bags need to be unloaded after filling. Since the bag filling process takes a lot of time, it often cannot keep up with the pace of other processes, which will affect the packaging efficiency of the entire packaging production line.

[0003] To improve packaging efficiency, a Chinese invention patent with patent number ZL201510308051.5, entitled "A Continuous Dual-Station Vacuum Packaging Mechanism," was announced on January 4, 2017. This mechanism is used for batch vacuum packaging of materials and includes a frame, filling components, a quantitative scale, first and second shaping sections, first and second sealing components, first and second discharging devices, guide shafts, guide rails, and a PLC control system. The lower part of the frame has a packaging drive unit, the two sides are discharging positions, and the upper part has a filling drive unit and a horizontal guide rail. A quantitative scale is located above the center of the guide shaft. The filling assembly, including first and second clamping filling sections and a filling platform, is located at the guide shaft. Packaging bags are filled simultaneously as the filling platform slides on the guide shaft. First and second shaping sections and first and second discharging devices are fixed in groups at the guide rail slider. The distance between the shaping section and the discharging device in any group matches the translation distance of the filling and discharging mechanism. This invention achieves a dual-station design on the filling assembly and, through structural matching, enables continuous filling, shaping, sealing, and discharging actions, improving efficiency. However, this packaging mechanism cannot achieve simultaneous filling and bag unloading operations; production efficiency and automation levels still need improvement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a filling and packaging production line with a high degree of automation. The circulating filling mechanism enables filling and unloading of bags to be carried out simultaneously, effectively improving packaging efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is: a filling and packaging production line, including a frame and a control mechanism. The upper part of the frame is equipped with a weighing and feeding mechanism, which also includes a bag storage bin, a bag picking mechanism, a bag feeding mechanism, a bag opening and bag loading mechanism, a circulating filling mechanism, a bag clamping and bag moving mechanism, a bag supporting and bag guiding mechanism, and a packaging bag sealing mechanism.

[0006] The bag-retrieving mechanism takes out packaging bags one by one from the packaging bag storage and places them on the bag-feeding mechanism;

[0007] The circulating filling mechanism includes a base, on which a vertical rotating frame is pivotally connected. The vertical rotating frame is driven by a first driving mechanism to rotate intermittently or rotate back. At least two first supports are installed on the upper part of the vertical rotating frame, and a hopper is fixedly connected to each first support. A gate is provided at the lower part of each hopper. A first packaging bag clamping mechanism is installed on the vertical rotating frame on both sides of each gate. When in the filling state, at least one hopper corresponds to the position of the weighing and discharging mechanism.

[0008] When the packaging bag is moved by the bag feeding mechanism to the bag opening and bag loading mechanism to open the bag opening and rotate it to fit the lower part of the gate, the first packaging bag clamping mechanism on both sides of the gate clamps the packaging bag at the same time. After the packaging bag is filled or when the vertical rotating frame rotates to switch positions during the filling process and is in the unloading state, the first packaging bag clamping mechanism on both sides of the gate releases the packaging bag at the same time after the bag clamping and bag moving mechanism clamps the packaging bag.

[0009] The bag clamping and transferring mechanism connects to the bag holding and guiding mechanism to deliver the filled packaging bag to the bag holding and guiding mechanism. The bag holding and guiding mechanism connects to the sealing mechanism to deliver the packaging bag to the sealing mechanism for sealing. The control mechanism coordinates and controls the actions of each mechanism.

[0010] Preferably, the gate includes two gate bodies hinged at the bottom of the hopper. The two gate bodies are driven by a first cylinder to rotate in opposite directions. The gate is closed when the two gate bodies are close to each other and opened when the two gate bodies are spread apart.

[0011] Two first hinge seats are fixed on each first bracket, a second hinge seat is fixed on the outside of each gate body, the housing of each first cylinder is hinged to a first hinge seat, and the piston rod of each first cylinder is hinged to a second hinge seat.

[0012] Each gate body is also fixedly equipped with a third hinge seat on its outer side. Each second hinge seat is also hinged to the housing of a second cylinder. Each third hinge seat is hinged to one hinge position of a first clamping block. The piston rod of each second cylinder is hinged to the other hinge position of a first clamping block. The second cylinder drives the first clamping block to rotate, causing the first clamping block to clamp one side of the bag opening onto the outer surface of the gate body or to release one side of the bag opening. This not only facilitates driving the two gate bodies closer or further apart to open or close the gate, but also clamps the side of the bag opening in the middle onto the outer surface of the gate body to prevent leakage and bag detachment. Furthermore, when the first cylinder is a double-stroke cylinder, there are two states when the gate opening is open: a large opening and a small opening, to accommodate large and small packaging bags, improving the versatility and filling efficiency of the equipment.

[0013] Preferably, the first packaging bag clamping mechanism includes a second bracket, a third cylinder, and two second clamping blocks. The second bracket is mounted on a vertical rotating frame and can move back and forth relative to the vertical rotating frame.

[0014] The upper parts of the two second clamping blocks are pivotally connected to the second bracket, and the two second clamping blocks are provided with meshing teeth on opposite sides. The housing of the third cylinder is hinged to the second bracket, and the piston rod of the third cylinder is hinged to the lower part of one of the second clamping blocks. The third cylinder drives one clamping block to rotate and then drives the two second clamping blocks to rotate in opposite directions through the meshing teeth to clamp or release the packaging bag.

[0015] The vertical rotating frame is also equipped with a fourth cylinder, which is connected to the second support. The fourth cylinder drives the second support to move back and forth relative to the vertical rotating frame to straighten or loosen the bag opening. Each first support can move up and down via a second drive mechanism mounted on the vertical rotating frame. Furthermore, both second clamping blocks are equipped with vacuum detection pipes connected to the clamping surface to detect whether the bag opening is clamped. The advantages of this structure are: 1. Preventing the bag clamping mechanism from filling the bag before filling, thus preventing malfunctions; 2. Straightening the bag opening during filling effectively prevents leakage during filling or when the vertical rotating frame rotates to change positions; 3. In the unloading state, straightening the bag opening makes it more even, facilitating subsequent processes such as sewing or heat sealing.

[0016] Secondly, each first bracket can move up and down via a second drive mechanism mounted on a vertical rotating frame, so that the gate can be inserted into the opening of the packaging bag for reliable filling or the gate can be detached from the packaging bag to reliably make way at the unloading station.

[0017] Further improvements include at least two third supports mounted in the center of the vertical rotating frame. Each third support is equipped with a fifth cylinder, and each fifth cylinder is connected to a support with a horizontal upper surface. The support can move up and down under the drive of the fifth cylinder to tap or support the packaging bag. The third supports are adjusted in position via a third drive mechanism. This design improves both the compaction of the packaging bag by tapping it, and the support's assistance in preventing larger or heavier bags from falling off, ensuring the reliability of the entire process. Furthermore, the relative position of the support and the packaging bag can be adjusted to accommodate different bag sizes, enhancing the equipment's versatility.

[0018] Preferably, the bag clamping and bag transferring mechanism includes a sliding frame mounted on the frame. The sliding frame can move back and forth along the frame via a fourth drive mechanism. Two rotating brackets are pivotally connected to the sliding frame. The two rotating brackets are driven to rotate back and forth via a fifth drive mechanism. Each rotating bracket is equipped with a second packaging bag clamping mechanism. Each second packaging bag clamping mechanism includes a clamping cylinder and two clamping blocks. The clamping cylinder is mounted on the rotating bracket and drives at least one clamping block to clamp or release the packaging bag.

[0019] In a further improvement, the fifth driving mechanism includes a driving cylinder, a slider, and a first connecting rod. The first connecting rod is hinged at both ends to a rotating bracket and the slider, respectively. The housing of the driving cylinder is fixed to the sliding frame, and the slider is movable back and forth on the sliding frame. The piston rod of the driving cylinder is connected to the slider. This facilitates the driving of the rotating bracket to rotate back and forth, and allows for easy switching of positions between the two sets of second packaging bag clamping mechanisms.

[0020] Further improvements include a sliding frame comprising a left sliding frame, a middle sliding frame, and a right sliding frame. The left and right sliding frames are each pivotally connected to a rotating support and equipped with a fifth drive mechanism. The middle sliding frame is connected to a fourth drive mechanism and houses a second motor. The drive shaft of the second motor is connected to the middle of a drive rod, enabling the drive rod to rotate in both directions. One end of a second connecting rod is hinged to one end of the drive rod, and the other end is hinged to the left sliding frame. One end of a third connecting rod is hinged to the other end of the drive rod, and the other end is hinged to the right sliding frame. The main functions of this structure are: firstly, to ensure reliable clamping of both sides of the packaging bag and to adapt to different sizes of packaging bags, improving the equipment's versatility; secondly, the rotation of the drive rod can straighten the bag opening, facilitating sewing or heat sealing of the bag opening.

[0021] Preferably, the packaging bag storage area includes a first bag storage area and a second bag storage area, and the bag retrieval mechanism includes a first bag retrieval mechanism and a second bag retrieval mechanism; the first bag storage area is used to store a stack of packaging bags without handles; the second bag storage area is used to suspend a stack of packaging bags with lifting rings.

[0022] The first bag-picking mechanism includes a first bag-picking bracket, a first bag-picking cylinder, a first suction cup, and a first bag-picking finger cylinder. The first suction cup is mounted on the first bag-picking bracket. The first bag-picking cylinder drives the first bag-picking bracket to move up and down so that the first suction cup picks up the handleless packaging bags one by one from the first bag magazine. The first bag-picking finger cylinder clamps one side of the packaging bag and moves the packaging bag to the bag-feeding mechanism under the drive of the first horizontal drive mechanism.

[0023] The second bag-picking mechanism includes a second bag-picking bracket, a second bag-picking cylinder, a second suction cup, a third packaging bag clamping mechanism, and a fourth packaging bag clamping mechanism. The second suction cup is mounted on the second bag-picking bracket, which is pivotally connected to an upper and lower movable frame. The housing of the second bag-picking cylinder is hinged to the upper and lower movable frame. A slider moves back and forth horizontally under the drive of a second horizontal drive mechanism. A first vertical drive mechanism is mounted on the slider. The first vertical drive mechanism is connected to the upper and lower movable frame and drives the upper and lower movable frame to move up and down. The piston rod of the second bag-picking cylinder is connected to the second bag-picking bracket, which drives the second bag-picking bracket to rotate and drives the second suction cup to pick up the packaging bag with the lifting ring on the second bag magazine. After the third packaging bag clamping mechanism clamps the lower two sides of the packaging bag, the fourth packaging bag clamping mechanism clamps the lower part of the packaging bag and moves the packaging bag with the lifting ring to the bag feeding mechanism under the drive of the third horizontal drive mechanism. The second bag magazine includes multiple vertical rods with packaging bag handle rings, a support that can move up and down on the vertical rods and support the packaging bag, and a second vertical drive mechanism that drives the support to move upward.

[0024] The bag feeding mechanism includes a bag placement platform, a drive component for moving the bag, and a correction component for adjusting the bag's position. This mechanism can accommodate bags without handles as well as bags with lifting rings, greatly improving the equipment's versatility and efficiency.

[0025] Preferably, the bag opening and bag loading mechanism includes an upper opening cylinder, a lower opening cylinder, a flipping frame, a flipping cylinder, and a bag opening support cylinder; the flipping frame is equipped with two sets of fifth packaging bag clamping mechanisms, and the flipping frame is also pivotally connected to a bag opening support, and the bag opening support cylinder is installed on the flipping frame and drives the bag opening support to rotate back and forth.

[0026] The piston rod of the upper-opening cylinder is connected to the upper-opening bracket, which is equipped with an upper-opening suction cup. The piston rod of the lower-opening cylinder is connected to the lower-opening bracket, which is equipped with a lower-opening suction cup. The upper and lower opening suction cups respectively suction the two sides of the bag opening to open the bag. The bag opening support flips and inserts into the bag opening to keep the bag opening open. Two sets of fifth-stage bag clamping mechanisms clamp the two sides of the bag and rotate with the flipping frame to put the bag opening onto the lower part of the gate. This mechanism ensures that the bag opening is put onto the lower part of the gate while it is open, achieving automatic and reliable bag loading.

[0027] Preferably, the bag holding and guiding mechanism includes a horizontal conveyor belt and two sets of synchronous belt drive mechanisms arranged on the horizontal conveyor belt. The horizontal conveyor belt supports the packaged bag after filling, and the two synchronous belts of the two sets of synchronous belt drive mechanisms clamp the two sides of the packaged bag, drive the packaged bag after filling to move and guide it into the packaged bag sealing mechanism.

[0028] The packaging bag sealing mechanism is either an automatic sewing machine for the packaging bag opening or a heat-sealing mechanism for the packaging bag opening; the base is fixedly connected to the frame as one unit.

[0029] This utility model's circulating filling mechanism, when in the filling state and the bag opening is open, and the bag-loading mechanism places the bag opening under the lower part of the gate, simultaneously clamps the bag on both sides of the gate. After the bag is filled, or when the vertical rotating frame rotates to switch positions during the filling process and is in the unloading state, the bag-loading mechanisms on both sides of the gate simultaneously release the bag. In this way, by rotating the vertical rotating frame to switch positions, one set of hoppers and gates can fill the bag, while another set of hoppers and gates can unload the bag. That is, the filling and unloading processes can be carried out simultaneously. Especially, rotating and switching positions while the bag is being filled further saves time and ensures synchronized operation with other mechanisms, improving production efficiency. Furthermore, through the coordinated actions of each mechanism, the bag loading, filling, unloading, and sealing operations are fully automated and cyclical, greatly improving packaging efficiency. Attached Figure Description

[0030] Figure 1 This is a top-view perspective view of the present invention;

[0031] Figure 2 This is a top-view perspective view of the hidden part of the frame of this utility model;

[0032] Figure 3 This is a top-view perspective view of the hidden part of the frame of this utility model from another angle;

[0033] Figure 4 This is a bottom-view perspective view of the hidden part of the frame of this utility model;

[0034] Figure 5 This is a top view of the hidden part of the frame of this utility model;

[0035] Figure 6 This is a front view of the circulating filling mechanism of this utility model;

[0036] Figure 7 yes Figure 6 The left view;

[0037] Figure 8 This is a perspective view of the circulating filling mechanism of this utility model;

[0038] Figure 9 yes Figure 6 Enlarged view at point F;

[0039] Figure 10 This is a front perspective view of the bag clamping and transferring mechanism of this utility model, showing the preparation of the bag clamping process.

[0040] Figure 11This is a rear perspective view of the bag clamping and transferring mechanism of this utility model, showing the preparation of the bag clamping.

[0041] Figure 12 This is a front perspective perspective view of the bag clamping and bag transferring mechanism of this utility model after the bag is released and returned to its original position.

[0042] Figure 13 This is a rear view of the bag clamping and transferring mechanism of this utility model after the bag is released and returned to its original position;

[0043] Figure 14 yes Figure 2 Enlarged view of point A;

[0044] Figure 15 This is a three-dimensional view of part of the second bag-retrieving mechanism;

[0045] Figure 16 yes Figure 2 Enlarged view of point B;

[0046] Figure 17 This is a perspective view of the hidden part of the second bag storage frame of this utility model;

[0047] Figure 18 yes Figure 4 Enlarged view of point E;

[0048] Figure 19 yes Figure 2 Enlarged view of point C;

[0049] Figure 20 yes Figure 3 Enlarged view of point D. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0051] Figures 1 to 20 As shown, a filling and packaging production line includes a frame 10, a control mechanism 20, a weighing and unloading mechanism 30, a bag storage hopper 40, a bag picking mechanism 50, a bag feeding mechanism 60, a bag opening and loading mechanism 70, a circulating filling mechanism 80, a bag clamping and transferring mechanism 90, a bag supporting and guiding mechanism 100, and a bag sealing mechanism 110. The bag picking mechanism 50 picks up the packaging bags 200 one by one from the bag storage hopper 40 and places them on the bag feeding mechanism 60. The weighing and unloading mechanism 30 is mounted on the upper part of the frame 10.

[0052] Figures 6 to 9As further shown, the circulating filling mechanism 80 includes a base 1, which is fixedly connected to the frame 10 or can be integrated with it. A vertical rotating frame 2 is pivotally connected to the base 1. The vertical rotating frame 2 is driven by a first driving mechanism 3 to rotate intermittently or rotate back. Two first supports 4 that can move vertically up and down are installed on the upper part of the vertical rotating frame 2. The two first supports 4 are symmetrically installed with respect to the vertical rotating frame 2. A hopper 5 is fixedly connected to each first support 4. A gate 6 is provided at the lower part of each hopper 5. Filling is realized by opening the gate 6 or stopping filling by closing the gate 6.

[0053] The first drive mechanism 3 includes a first motor 31, a reducer 32, a drive gear 33, and a driven gear 34. The reducer 32 is fixedly connected to the base 1. The drive shaft of the first motor 31 is connected to the input shaft of the reducer 32. The output shaft of the reducer 32 is fixedly connected to the drive gear 33. The driven gear 34 is fixedly connected to the vertical rotating frame 2. The drive gear 33 and the driven gear 34 mesh with each other. In this way, the first drive mechanism 3 can drive the vertical rotating frame 2 to rotate to switch the position of the hopper 5, so that the hopper 5 can be in the position of feeding material to the weighing and feeding mechanism 30 or in the unloading position.

[0054] Each gate 6 has a first packaging bag clamping mechanism 7 mounted on a vertical rotating frame 2 on both sides. When the bag is in the filling state, a hopper 5 is positioned corresponding to the weighing and unloading mechanism 30. When the packaging bag 200 is moved by the bag feeding mechanism 60 to the point where the bag opening is open and the bag loading mechanism 70 opens the bag and rotates it to fit the lower part of the gate 6, the first packaging bag clamping mechanisms 7 on both sides of the gate 6 simultaneously clamp the packaging bag 200. After the packaging bag 200 is filled or when the packaging bag 200 is in the filling process, the vertical rotating frame 2 rotates and switches to the unloading state. When the packaging bag 200 is in the unloading state, the first packaging bag clamping mechanisms 7 on both sides of the gate 6 simultaneously release the packaging bag 200.

[0055] The gate 6 includes two gate bodies 61 that are hinged to the lower part of the hopper 5. Each gate body 61 is driven to rotate by a first cylinder 62. When the two first cylinders 62 drive the two gate bodies 61 at the same time, the two gate bodies 61 rotate in opposite directions. When the two gate bodies 61 approach each other, the gate 6 is closed. When the two gate bodies 61 spread out, the gate 6 is opened.

[0056] Two first hinge seats 41 are fixed on each first bracket 4, and a second hinge seat 63 is fixed on the outside of each gate body 61. The housing of each first cylinder 62 is hinged to a first hinge seat 41, and the piston rod of each first cylinder 62 is hinged to a second hinge seat 63.

[0057] Each gate body 61 is also fixedly provided with a third hinge seat 64 on its outer side. Each second hinge seat 63 is also hinged to the housing of a second cylinder 65. Each third hinge seat 64 is hinged to one hinge position of a first clamping block 66. The piston rod of each second cylinder 65 is hinged to the other hinge position of a first clamping block 66. The second cylinder 65 drives the first clamping block 66 to rotate, so that the first clamping block 66 clamps the middle side of the bag opening of the packaging bag 200 on the outer side of the gate body 61 or releases the middle side of the bag opening of the packaging bag 200. The first clamping block 66 is provided with a vacuum detection pipe 661 to detect whether the middle side of the bag opening of the packaging bag 200 is clamped, so as to prevent leakage during filling.

[0058] The first cylinder 62 is a double-stroke cylinder, so that when the gate 6 is opened, there are two states: a large opening and a small opening, so as to correspond to the large packaging bag 200 and the small packaging bag 200, thereby improving the versatility of the equipment and the filling efficiency; when the two gate bodies 61 are close to each other, they form a pointed cone shape, so as to facilitate insertion into the bag opening of the packaging bag 200 or the insertion of the bag opening of the packaging bag 200.

[0059] The first packaging bag clamping mechanism 7 includes a second bracket 71, a third cylinder 72, and two second clamping blocks 73. The second bracket 71 can move back and forth laterally relative to the vertical rotating frame 2. The vertical rotating frame 2 is provided with a horizontal track. The second bracket 71 moves back and forth laterally by means of a slider cooperating with the horizontal track. As a variation, the second bracket 71 and the vertical rotating frame 2 can also be fixedly connected, but this is only suitable for packaging bags 200 that are relatively fixed and whose openings cannot be straightened.

[0060] The upper parts of the two second clamping blocks 73 are pivotally connected to the second bracket 71, respectively. Each of the two second clamping blocks 73 has meshing teeth 731 on opposite sides. The housing of the third cylinder 72 is hinged to the second bracket 71, and the piston rod of the third cylinder 72 is hinged to the lower part of one of the second clamping blocks 73. The third cylinder 72 drives one of the second clamping blocks 73 to rotate, and then, through the meshing teeth 731, simultaneously drives both second clamping blocks 73 to rotate in opposite directions to clamp or release the packaging bag 200. Each of the two second clamping blocks 73 is equipped with a vacuum detection pipe 731 connected to the clamping surface to detect whether the bag opening is clamped, preventing malfunction.

[0061] When the second support 71 can move back and forth relative to the vertical rotating frame 2, the vertical rotating frame 2 is also equipped with a fourth cylinder 74. The fourth cylinder 74 is connected to the second support 71. The fourth cylinder 74 drives the second support 71 to move back and forth relative to the vertical rotating frame 2 to straighten or loosen the opening of the packaging bag 200. Specifically, the housing of the fourth cylinder 74 is fixed to the vertical rotating frame 2, and the piston rod of the fourth cylinder 74 is connected to the second support 71. The fourth cylinder 74 is a double-stroke cylinder to accommodate packaging bags 200 of different sizes.

[0062] The first support 4 is driven to move up and down by a second drive mechanism mounted on the vertical rotating frame 2. The second drive mechanism is preferably two sixth cylinders 42. The first support 4 moves up and down by a slider and a vertical track fixed on the vertical rotating frame 2. The housings of the two sixth cylinders 42 are fixed to the vertical rotating frame 2, and the piston rods of the two sixth cylinders 42 are connected to the first support 4 to drive the first support 4 to move up and down.

[0063] The vertical rotating frame 2 is equipped with two third supports 8 in the middle. Each third support 8 is equipped with a fifth cylinder 81, and each fifth cylinder 81 is connected to a support 82 with a horizontal upper surface. The support 82 can move up and down under the action of the fifth cylinder 81 to tap or support the packaging bag 200. The support 82 moves up and down through a slider and a vertical track fixed on the vertical rotating frame 2. Specifically, the housing of the fifth cylinder 81 is fixed to the third support 8, and the piston rod of the fifth cylinder 81 is connected to the support 82.

[0064] The third support 8 is connected together and driven by the third drive mechanism 9 to adjust its vertical position. The third support 8 moves up and down by means of a slider and a vertical track fixed on the vertical rotating frame 2.

[0065] The third drive mechanism 9 includes a second motor 91 mounted on the vertical rotating frame 2, a vertical screw 92 pivotally connected to the vertical rotating frame 2, and a nut 83 fixed to the third support 8. The drive shaft of the second motor 91 drives the vertical screw 92 to rotate through a transmission mechanism. The vertical screw 92 cooperates with the nut 83 to adjust the vertical position of the third support 8. The transmission mechanism includes a drive sprocket 93 fixed to the second motor 91 and a driven sprocket 94 fixed to the vertical screw 92. The drive sprocket 93 and the driven sprocket 94 are connected by a chain 95.

[0066] The fifth cylinder 81 is a double-stroke cylinder to accommodate packaging bags 200 of different sizes and specifications, and it has sufficient clearance when working with the bag opening and bag loading mechanism 70.

[0067] The bag clamping and transferring mechanism 90 connects to the bag holding and guiding mechanism 100 to deliver the packaging bag to the bag holding and guiding mechanism 100. The bag holding and guiding mechanism 100 connects to the sealing mechanism to deliver the packaging bag to the sealing mechanism for sealing. The control mechanism 20 coordinates and controls the actions of each mechanism.

[0068] Figures 10 to 13As further shown, the bag clamping and transferring mechanism 90 includes a sliding frame 2a mounted on the frame 10. The sliding frame 2a is driven by a fourth drive mechanism 4a to move back and forth laterally along the frame 10. Two rotating supports 31a are pivotally connected to the sliding frame 2a. The two rotating supports 31a are driven by a fifth drive mechanism 5a to rotate back and forth in the vertical and horizontal directions, respectively. Each rotating support 31a is equipped with a second packaging bag clamping mechanism 3a. Each second packaging bag clamping mechanism 3a includes a clamping cylinder 32a and two clamping blocks 33a. The clamping cylinder 32a is mounted on the rotating support 31a and drives the two clamping blocks 33a to clamp or release the packaging bag 200. As a variation, one clamping block 33a can also be set as fixed, and then the clamping cylinder 32a drives a movable clamping block 33a to cooperate with the fixed clamping block 33a to clamp or release the packaging bag 200.

[0069] In this embodiment, the housing of the clamping cylinder 32a is pivotally connected to the rotating bracket 31a, and the two clamping blocks 33a are pivotally connected to the rotating bracket 31a respectively. Each of the two clamping blocks 33a has meshing teeth 331a on an adjacent side. The piston rod of the clamping cylinder 32a is hinged to one of the clamping blocks 33a. The clamping cylinder 32a drives one of the clamping blocks 33a to rotate, and then through the meshing of the meshing teeth 331a, it simultaneously drives the two clamping blocks 33a to rotate in opposite directions to clamp or release the packaging bag 200.

[0070] The fourth drive mechanism 4a includes a first motor 41a mounted on the frame 10 and a transmission mechanism. The first motor 41a drives the sliding frame 2a to move back and forth laterally along the frame 10 through the transmission mechanism. The transmission mechanism includes a driving synchronous pulley 42a mounted on one side of the frame 10, a driven synchronous pulley 43a mounted on the other side of the frame 10, and a synchronous belt 44a. The synchronous belt 44a connects the driving synchronous pulley 42a and the driven synchronous pulley 43a. A portion of the synchronous belt 44a is fixedly connected to the sliding frame 2a. The drive shaft of the first motor 41a is connected to the driving synchronous pulley 42a and can drive the driving synchronous pulley 42a to rotate in both directions.

[0071] Furthermore, the sliding frame 2a includes a left sliding frame 21a, a middle sliding frame 22a, and a right sliding frame 23a. The left sliding frame 21a, the middle sliding frame 22a, and the right sliding frame 23a are all connected to the transverse guide rail mounted on the frame 10 via sliders. The left sliding frame 21a and the right sliding frame 23a are respectively pivotally connected to a rotating bracket 31a and equipped with a fifth drive mechanism 5a. The middle sliding frame 22a is connected to the fourth drive mechanism 4a, specifically, the middle sliding frame 22a is fixedly connected to a portion of the synchronous belt 44a.

[0072] The intermediate sliding frame 22a is equipped with a second motor 6a. The drive shaft of the second motor 6a is connected to the middle of a drive rod 7a and can drive the drive rod 7a to rotate in both directions. One end of a second connecting rod 8a is hinged to one end of the drive rod 7a, and the other end of the second connecting rod 8a is hinged to the left sliding frame 21a. One end of a third connecting rod 9a is hinged to the other end of the drive rod 7a, and the other end of the third connecting rod 9a is hinged to the right sliding frame 23a. The intermediate sliding frame 22a is also equipped with a reducer 61a. The drive shaft of the second motor 6a is connected to the input shaft of the reducer 61a, and the output shaft of the reducer 61a is fixedly connected to the middle of the drive rod 7a.

[0073] The fifth driving mechanism 5a includes a driving cylinder 51a, a slider 52a, and a first connecting rod 53a. The two ends of the first connecting rod 53a are respectively hinged to the rotating bracket 31a and the slider 52a. The housing of the driving cylinder 51a is fixedly connected to the left sliding bracket 21a or the right sliding bracket 23a of the sliding frame 2a. The slider 52a can be moved back and forth vertically and is installed on the left sliding bracket 21a or the right sliding bracket 23a of the sliding frame 2a. The piston rod of the driving cylinder 51a is connected to the slider 52a.

[0074] The sliding frame 2a is equipped with a first buffer positioning post 54a and a second buffer positioning post 55a, which buffer and position the upper and lower moving ends of the slider 52a.

[0075] The frame 10 is equipped with multiple position sensors 11a, which are used to detect the movement position of the sliding frame 2a. The first motor 41a and the second motor 6a can be servo motors.

[0076] The packaging bag storage 40 includes a first bag storage 401 and a second bag storage 402, and the bag retrieval mechanism 50 includes a first bag retrieval mechanism 501 and a second bag retrieval mechanism 502; the first bag storage 401 is used to store a stack of packaging bags 200 without handles; the second bag storage 402 is used to suspend a stack of packaging bags 200 with lifting rings.

[0077] The first bag storage 401 includes a placement platform 4011 for handleless packaging bags 200, a set of push rods 4012 for handleless packaging bags 200, and a set of position correction rods 4013 for handleless packaging bags 200.

[0078] Combination Figure 2 , Figure 14As further shown, the first bag-picking mechanism 501 includes a first bag-picking bracket 1b, a first bag-picking cylinder 11b, four first suction cups 12b, and three first bag-picking finger cylinders 13b. The four first suction cups 12b are mounted on the first bag-picking bracket 1b. The first bag-picking cylinder 11b drives the first bag-picking bracket 1b to move up and down, so that the four first suction cups 12b pick up the handleless packaging bags 200 one by one from the first bag magazine 401. The three first bag-picking finger cylinders 13b clamp one side of the packaging bag 200 and move the packaging bag 200 laterally to the bag-feeding mechanism 60 under the drive of the first horizontal drive mechanism 14b. The first horizontal drive mechanism 14b can be a servo motor and transmission mechanism. The three first bag-picking finger cylinders 13b are simultaneously mounted on a slide 131b. The first horizontal drive mechanism 14b drives the slide 131b to slide laterally.

[0079] Combination Figure 2 , Figure 15 , Figure 16 As shown, the second bag-taking mechanism 502 includes a second bag-taking bracket 2b, a second bag-taking cylinder 21b, two second suction cups 22b, a third packaging bag clamping mechanism 23b, and a fourth packaging bag clamping mechanism 24b. The two second suction cups 22b are mounted on the second bag-taking bracket 2b, which is pivotally connected to an upper and lower movable frame 25b. The housing of the second bag-taking cylinder 21b is hinged to the upper and lower movable frame 25b. A slider 26b moves back and forth along the horizontal longitudinal direction under the drive of a second horizontal drive mechanism 27b. A first vertical drive mechanism 28b is mounted on the slider 26b. The first vertical drive mechanism 28b is connected to the upper and lower movable frame 25b and drives the upper and lower movable frame 25b to move up and down. The second horizontal drive mechanism 27b is a cylinder, and the first vertical drive mechanism 28b can be a cylinder or a drive module driven by a motor and transmission mechanism.

[0080] The piston rod of the second bag-retrieving cylinder 21b is connected to the second bag-retrieving bracket 2b, driving the second bag-retrieving bracket 2b to rotate and causing the two second suction cups 22b to pick up the packaging bag 200 with the lifting ring on the second bag magazine 402. After the third packaging bag clamping mechanism 23b clamps the lower two sides of the packaging bag 200, the fourth packaging bag clamping mechanism 24b clamps the lower part of the packaging bag 200 and moves longitudinally under the drive of the third horizontal drive mechanism 29b, moving the packaging bag 200 with the lifting ring onto the bag feeding mechanism 60. The horizontal drive mechanism 29b is a servo motor and transmission mechanism; the third packaging bag clamping mechanism 23b includes two finger cylinders 231b, which drive two movable grippers 232b to clamp the lower two sides of the packaging bag 200; the fourth packaging bag clamping mechanism 24b includes a rotating cylinder 241b, a fixed gripper 242b, and a rotating gripper 243b, which drive the rotating gripper 243b to cooperate with the fixed gripper 242b to clamp the lower part of the packaging bag 200;

[0081] Combination Figure 2 , Figure 3 , Figure 17 As further shown, the second bag storage 402 includes a gap rotating frame 3b, multiple vertical rods 31b through which the handles of the packaging bags 200 are threaded, a support 32b that is fitted on the vertical rods 31b and can move up and down to support the packaging bags 200, and a second vertical drive mechanism 33b that drives the support 32b to move upward. Two vertical rods 31b are fixedly fixed at intervals on the rotating frame 3b, and the handles of the packaging bags 200 are fitted on the two vertical rods 31b. The second vertical drive mechanism 33b includes a vertical drive module 331b, a bracket 332b, a telescopic cylinder 333b, and a bracket 334b ​​that supports the support 32b. The vertical drive module 331b drives the bracket 332b to move up and down. The housing of the telescopic cylinder 333b is fixedly connected to the bracket 332b, and the piston rod of the telescopic cylinder 333b is connected to the bracket 334b. In this way, the second vertical drive mechanism 33b can drive the support 32b or detach from the support 32b.

[0082] Combination Figure 2 , Figure 4 , Figure 5 , Figure 18 , Figure 19 As further shown, the bag feeding mechanism 60 includes a bag placement platform 4b, a drive assembly 41b for moving the bag 200, and a correction assembly 42b for correcting the position of the bag 200. The lower part of one side of the bag placement platform 4b is hinged to the frame 10, and the lower part of the other side of the bag placement platform 4b is hinged to the piston rod of the bag-removing cylinder 43b. The housing of the bag-removing cylinder 43b is hinged to the frame 10. The drive assembly 41b includes a drive motor 411b installed below the bag placement platform 4b. The drive shaft of the drive motor 411b connects to two drive wheels 412b, which are exposed on the bag placement platform 4b. The highest point of the two drive wheels 412b is flush with or slightly higher than the upper surface of the bag placement platform 4b. The housing of a bag-pressing cylinder 44b is fixed to the frame 10. The piston rod connects to two driven pressure rollers 441b. The two driven pressure rollers 441b and two drive rollers 412b cooperate to press down on both sides of the packaging bag 200 and then drive the packaging bag 200 to move horizontally and longitudinally. The correction component 42b includes two rows of multiple correction rods 421b arranged longitudinally. The two rows of correction rods 421b can move closer to each other or further away from each other under the drive of the drive component 422b. When they move closer to each other, the position of the packaging bag 200 is adjusted so that the bag can be opened accurately. When the bag opening fails, the bag removal cylinder 43b can drive the packaging bag placement platform 4b to rotate and remove the packaging bag 200 to ensure the continuous operation and avoid machine stoppage.

[0083] Combination Figure 3 , Figure 19 , Figure 20As further shown, the bag opening and bag-attaching mechanism 70 includes an upper opening cylinder 1c, a lower opening cylinder 2c, a flipping frame 3c, a flipping cylinder 4c, and a bag-opening cylinder 5c; the flipping frame 3c is equipped with two sets of fifth packaging bag clamping mechanisms 6c, and a bag-opening support 7c is also pivotally connected to the flipping frame 3c. The housing of the bag-opening cylinder 5c is hinged to the flipping frame 3c, and the piston rod is hinged to the support 7c and drives the bag-opening support 7c to rotate back and forth; the piston rod of the upper opening cylinder 1c is connected to the upper opening support 11c, and the upper opening support 11c is equipped with two upper opening suction cups 1 2c, the piston rod of the lower opening cylinder 2c is connected to the lower opening bracket 21c. The lower opening bracket 21c is equipped with two lower opening suction cups 22c. The upper opening suction cup 12c and the lower opening suction cup 22c respectively suck on both sides of the bag opening of the packaging bag 200 to open the bag opening of the packaging bag 200. The bag opening support 7c flips and inserts into the bag opening of the packaging bag 200 to keep the bag opening of the packaging bag 200 in an open state. Two sets of fifth packaging bag clamping mechanisms 6c clamp the two sides of the packaging bag 200 and rotate with the flipping frame 3c to put the bag opening of the packaging bag 200 onto the lower part of the gate 6.

[0084] Each fifth packaging bag clamping mechanism 6c includes a bag clamping cylinder 61c and two grippers 62c. Both grippers 62c are hinged to the flipping frame 3c. Each gripper 62c has meshing teeth 621c on opposite sides. The housing of the bag clamping cylinder 61c is hinged to the flipping frame 3c, and the piston rod is hinged to one gripper 62c. The bag clamping cylinder 61c drives one gripper 62c to rotate and then drives both grippers 62c to rotate and clamp the packaging bag 200 through the meshing teeth 621c.

[0085] The bag holding and guiding mechanism 100 includes a horizontal conveyor belt 1d and two sets of synchronous belt drive mechanisms 2d set on the horizontal conveyor belt 1d. The horizontal conveyor belt 1d holds the packaged bag 200 after filling. The two synchronous belts of the two sets of synchronous belt drive mechanisms 2d clamp the two sides of the packaged bag 200, drive the packaged bag 200 after filling to move and guide it into the packaged bag sealing mechanism 110.

[0086] The packaging bag sealing mechanism 110 is either an automatic sewing machine for the opening of a packaging bag 200 or a heat-sealing mechanism for the opening of a packaging bag 200. When the packaging bag sealing mechanism 110 is an automatic sewing machine for the opening of a packaging bag 200, a front guide mechanism 1e is also provided in front of the automatic sewing machine to connect with the bag support and guide mechanism 100, and a horizontal conveyor belt 1d is also provided below the automatic sewing machine.

[0087] In this embodiment, for example, when packaging rice, a stack of handle-less packaging bags 200 are placed on the first bag storage 401, and a stack of packaging bags 200 with lifting rings are suspended on the two vertical bars 31b of the second bag storage 402; the weighing and feeding mechanism 30 feeds a fixed amount of rice into a hopper 5 corresponding to the circulating filling mechanism 80, and the gate 6 below the hopper 5 is in a closed state.

[0088] When a handleless packaging bag 200 is needed, the four first suction cups 12b of the first bag picking mechanism 501 pick up the packaging bag 200 one by one from the placement platform 4011 of the first bag storage 401 and transfer it to the first bag picking finger cylinder 13b. The multiple first bag picking finger cylinders 13b then move the packaging bag 200 to the packaging bag placement platform 4b of the bag feeding mechanism 60.

[0089] When a packaging bag 200 with a lifting ring is needed, the second suction cup 22b of the second bag picking mechanism 502 picks up the packaging bag 200 with the lifting ring on the second bag magazine 402, and then moves and rotates the direction of the packaging bag 200 so that the third packaging bag clamping mechanism 23b can clamp the lower two sides of the packaging bag 200. Then, the fourth packaging bag clamping mechanism 24b clamps the lower part of the packaging bag 200 and moves longitudinally under the drive of the third horizontal drive mechanism 29b to move the packaging bag 200 with the lifting ring onto the packaging bag placement platform 4b of the bag feeding mechanism 60.

[0090] Next, the correction component 42b of the bag feeding mechanism 60 corrects the position of the packaging bag 200. Then, the drive component 41b moves the packaging bag 200 to the position where the bag opening is located and the bag feeding mechanism 70 is engaged. Two sets of fifth packaging bag clamping mechanisms 6c clamp the two sides of the packaging bag 200. The upper opening suction cup 12c and the lower opening suction cup 22c respectively suck up the two sides of the bag opening of the packaging bag 200 to open the bag opening. The bag opening support 7c flips and inserts into the bag opening of the packaging bag 200 to keep the bag opening of the packaging bag 200 in the open state. The two sets of fifth packaging bag clamping mechanisms 6c continue to clamp the two sides of the packaging bag 200 and rotate with the flipping frame 3c to put the bag opening of the packaging bag 200 onto the lower part of the gate 6 of the circulating filling mechanism 80. The two sets of first packaging bag clamping mechanisms 7 clamp the two sides of the packaging bag 10. The bag opening support 7c rotates in the opposite direction to disengage from the packaging bag 200. The two sixth air... Cylinder 42 drives the first support 4, hopper 5 and gate 6 to move downwards, so that the lower part of gate 6 can be reliably inserted into the opening of the packaging bag 200. The two second cylinders 65 act simultaneously, respectively driving the two first clamping blocks 66 to clamp the two sides of the middle position of the opening of the packaging bag 200 to the outer surfaces of the two gate bodies 61. The two fourth cylinders 74 respectively drive the two second supports 71 to move away from each other relative to the vertical rotating frame 2 to straighten the opening of the packaging bag 200 and prevent leakage during feeding. During filling, the two first cylinders 62 drive the two gate bodies 61 to rotate in opposite directions, so that the two gate bodies 61 open each other and open the gate 6 to fill the packaging bag 200. During the filling process, the fifth cylinder 81 drives the support 82 to move up and down and tap the lower end of the packaging bag 200 to make the filling of the packaging bag 200 more compact. After filling is completed, the gate 6 closes, and the support 82 can also help support the packaging bag 200. To further improve production efficiency, in this embodiment, the vertical rotating frame 2 can rotate and switch positions while the packaging bag 200 is being filled.

[0091] The vertical rotating frame 2 rotates 180° to switch positions under the drive of the first drive mechanism 3. The packaged bag 200 after filling moves to the unloading station. When unloading, the two second cylinders 65 act simultaneously to drive the two first clamping blocks 66 to rotate in opposite directions to release the two sides of the middle position of the bag opening of the packaged bag 200. The two sixth cylinders 42 drive the first support 4, hopper 5 and gate 6 to move upward and separate from the packaged bag. The two rotating supports 31a of the bag clamping and bag moving mechanism 90 are driven to rotate to the horizontal direction by a set of fifth drive mechanisms 5a. The two sets of second packaged bag clamping mechanisms 3a clamp the two sides of the packaged bag 200 after filling. The two second clamping blocks 73 of the two sets of first packaged bag clamping mechanisms 7 rotate in opposite directions to release the two sides of the packaged bag 200 to realize the transfer of the packaged bag 200. At this time, if it is necessary to straighten the bag opening of the packaged bag 200 so that the subsequent process is more convenient to seal, the drive rod 7a rotates through the second connecting rod 8a and the third connecting rod 9a to drive the left sliding frame 21a and the right sliding frame 23a away from each other.

[0092] Next, the two sets of second packaging bag clamping mechanisms 3a clamp the two sides of the filled packaging bag 200 and move the filled packaging bag 200 onto the bag holding and guiding mechanism 100. Then, the two sets of second packaging bag clamping mechanisms 3a release the packaging bag 200. Then, the two rotating brackets 31a of the bag clamping and moving mechanism 90 are driven by the two fifth driving mechanisms 5a to rotate to the vertical direction. The two sets of second packaging bag clamping mechanisms 3a return to their positions in the vertical direction, which can better avoid other mechanisms.

[0093] Next, the horizontal conveyor belt 1d supports the packaged bag 200 after filling, and the two synchronous belts of the two sets of synchronous belt drive mechanisms 2d clamp the two sides of the packaged bag 200, driving the packaged bag 200 after filling to move and be guided into the front guide mechanism 1e of the packaged bag sealing mechanism 110. Finally, it is sealed by the automatic sewing machine, completing one packaging cycle. This cycle is repeated to realize the automated packaging of materials.

[0094] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A filling packaging production line comprising a frame, a control mechanism, a weighing and discharging mechanism mounted on the upper part of the frame, characterized in that: It also includes a bag storage unit, a bag retrieval mechanism, a bag feeding mechanism, a bag opening and loading mechanism, a circulating filling mechanism, a bag clamping and transferring mechanism, a bag supporting and guiding mechanism, and a bag sealing mechanism. The bag-retrieving mechanism takes out packaging bags one by one from the packaging bag storage and places them on the bag-feeding mechanism; The circulating filling mechanism includes a base, on which a vertical rotating frame is pivotally connected. The vertical rotating frame is driven by a first driving mechanism to rotate intermittently or rotate back. At least two first supports are installed on the upper part of the vertical rotating frame, and a hopper is fixedly connected to each first support. A gate is provided at the lower part of each hopper. A first packaging bag clamping mechanism is installed on the vertical rotating frame on both sides of each gate. When in the filling state, at least one hopper corresponds to the position of the weighing and discharging mechanism. When the packaging bag is moved by the bag feeding mechanism to the bag opening and bag loading mechanism to open the bag opening and rotate it to fit the lower part of the gate, the first packaging bag clamping mechanism on both sides of the gate clamps the packaging bag at the same time. After the packaging bag is filled or when the vertical rotating frame rotates to switch positions during the filling process and is in the unloading state, the first packaging bag clamping mechanism on both sides of the gate releases the packaging bag at the same time after the bag clamping and bag moving mechanism clamps the packaging bag. The bag clamping and transferring mechanism connects to the bag holding and guiding mechanism to deliver the filled packaging bag to the bag holding and guiding mechanism. The bag holding and guiding mechanism connects to the sealing mechanism to deliver the packaging bag to the sealing mechanism for sealing. The control mechanism coordinates and controls the actions of each mechanism.

2. A filled package production line according to claim 1, characterized in that: The gate includes two gate bodies that are hinged to the lower part of the hopper. The two gate bodies are driven by a first cylinder to rotate in opposite directions. The gate is closed when the two gate bodies are close to each other and opened when the two gate bodies are spread apart. Two first hinge seats are fixed on each first bracket, a second hinge seat is fixed on the outside of each gate body, the housing of each first cylinder is hinged to a first hinge seat, and the piston rod of each first cylinder is hinged to a second hinge seat. Each gate body is also fixed with a third hinge seat on the outside. Each second hinge seat is also hinged to the housing of a second cylinder. Each third hinge seat is hinged to one hinge position of a first clamping block. The piston rod of each second cylinder is hinged to another hinge position of a first clamping block. The second cylinder drives the first clamping block to rotate so that the first clamping block clamps the bag opening side of the packaging bag on the outer surface of the gate body or releases the bag opening side of the packaging bag.

3. A filled package production line according to claim 1, characterized in that: The first packaging bag clamping mechanism includes a second bracket, a third cylinder, and two second clamping blocks. The second bracket is mounted on a vertical rotating frame and can move back and forth relative to the vertical rotating frame. The upper parts of the two second clamping blocks are pivotally connected to the second bracket, and the two second clamping blocks are provided with meshing teeth on opposite sides. The housing of the third cylinder is hinged to the second bracket, and the piston rod of the third cylinder is hinged to the lower part of one of the second clamping blocks. The third cylinder drives one clamping block to rotate and then drives the two second clamping blocks to rotate in opposite directions through the meshing teeth to clamp or release the packaging bag. The vertical rotating frame is also equipped with a fourth cylinder, which is connected to the second support. The fourth cylinder drives the second support to move back and forth relative to the vertical rotating frame to straighten or loosen the opening of the packaging bag. Each first support can move up and down via a second drive mechanism mounted on a vertical rotating frame.

4. A filled package production line according to claim 1, characterized in that: At least two third supports are installed in the middle of the vertical rotating frame. Each third support is equipped with a fifth cylinder. Each fifth cylinder is connected to a support with a horizontal upper surface. The support can move up and down under the drive of the fifth cylinder to tap or support the packaging bag. The third support is driven by a third drive mechanism to adjust its up and down position.

5. A filled package production line according to claim 1, characterized in that: The bag clamping and bag transferring mechanism includes a sliding frame mounted on the frame. The sliding frame can move back and forth along the frame via a fourth drive mechanism. Two rotating brackets are pivotally connected to the sliding frame. The two rotating brackets are driven to rotate back and forth via a fifth drive mechanism. Each rotating bracket is equipped with a second packaging bag clamping mechanism. Each second packaging bag clamping mechanism includes a clamping cylinder and two clamping blocks. The clamping cylinder is mounted on the rotating bracket and drives at least one clamping block to clamp or release the packaging bag.

6. A filled package production line according to claim 5, characterized in that: The fifth driving mechanism includes a driving cylinder, a slider, and a first connecting rod. The two ends of the first connecting rod are respectively hinged to a rotating bracket and a slider. The housing of the driving cylinder is fixed to the sliding frame. The slider can move back and forth on the sliding frame. The piston rod of the driving cylinder is connected to the slider.

7. A filled package production line according to claim 5, characterized in that: The sliding frame includes a left sliding frame, a middle sliding frame, and a right sliding frame. The left and right sliding frames are each pivotally connected to a rotating bracket and equipped with a fifth drive mechanism. The middle sliding frame is connected to a fourth drive mechanism and is equipped with a second motor. The drive shaft of the second motor is connected to the middle of a drive rod and can drive the drive rod to rotate in both directions. One end of a second connecting rod is hinged to one end of the drive rod, and the other end of the second connecting rod is hinged to the left sliding frame. One end of a third connecting rod is hinged to the other end of the drive rod, and the other end of the third connecting rod is hinged to the right sliding frame.

8. The filling and packaging production line according to claim 1, characterized in that: The packaging bag storage area includes a first bag storage area and a second bag storage area, and the bag retrieval mechanism includes a first bag retrieval mechanism and a second bag retrieval mechanism; the first bag storage area is used to store a stack of packaging bags without handles; the second bag storage area is used to suspend a stack of packaging bags with lifting rings. The first bag-picking mechanism includes a first bag-picking bracket, a first bag-picking cylinder, a first suction cup, and a first bag-picking finger cylinder. The first suction cup is mounted on the first bag-picking bracket. The first bag-picking cylinder drives the first bag-picking bracket to move up and down so that the first suction cup picks up the handleless packaging bags one by one from the first bag magazine. The first bag-picking finger cylinder clamps one side of the packaging bag and moves the packaging bag to the bag-feeding mechanism under the drive of the first horizontal drive mechanism. The second bag-picking mechanism includes a second bag-picking bracket, a second bag-picking cylinder, a second suction cup, a third packaging bag clamping mechanism, and a fourth packaging bag clamping mechanism. The second suction cup is mounted on the second bag-picking bracket, which is pivotally connected to an upper and lower movable frame. The housing of the second bag-picking cylinder is hinged to the upper and lower movable frame. A slider moves back and forth horizontally under the drive of a second horizontal drive mechanism. A first vertical drive mechanism is mounted on the slider. The first vertical drive mechanism is connected to the upper and lower movable frame and drives the upper and lower movable frame to move up and down. The piston rod of the second bag-picking cylinder is connected to the second bag-picking bracket, which drives the second bag-picking bracket to rotate and drives the second suction cup to pick up the packaging bag with the lifting ring on the second bag magazine. After the third packaging bag clamping mechanism clamps the lower two sides of the packaging bag, the fourth packaging bag clamping mechanism clamps the lower part of the packaging bag and moves the packaging bag with the lifting ring to the bag feeding mechanism under the drive of the third horizontal drive mechanism. The second bag magazine includes multiple vertical rods with packaging bag handle rings, a support that can move up and down on the vertical rods and support the packaging bag, and a second vertical drive mechanism that drives the support to move upward. The bag feeding mechanism includes a packaging bag placement platform, a drive component for moving the packaging bags, and a correction component for correcting the position of the packaging bags.

9. A filling and packaging production line according to claim 1, characterized in that: The bag opening and bag loading mechanism includes an upper opening cylinder, a lower opening cylinder, a flipping frame, a flipping cylinder, and a bag opening support cylinder; the flipping frame is equipped with two sets of fifth packaging bag clamping mechanisms, and the flipping frame is also pivotally connected to a bag opening support. The bag opening support cylinder is installed on the flipping frame and drives the bag opening support to rotate back and forth. The piston rod of the upper opening cylinder is connected to the upper opening bracket, which is equipped with an upper opening suction cup. The piston rod of the lower opening cylinder is connected to the lower opening bracket, which is equipped with a lower opening suction cup. The upper and lower opening suction cups respectively suck on both sides of the bag opening to open the bag opening. The bag opening support flips and inserts into the bag opening to keep the bag opening in the open state. Two sets of fifth packaging bag clamping mechanisms clamp the two sides of the packaging bag and rotate with the flipping frame to put the bag opening of the packaging bag onto the lower part of the gate.

10. A filling and packaging production line according to any one of claims 1 to 9, characterized in that: The bag support and guide mechanism includes a horizontal conveyor belt and two sets of synchronous belt drive mechanisms set on the horizontal conveyor belt. The horizontal conveyor belt supports the packaged bag after filling, and the two synchronous belts of the two sets of synchronous belt drive mechanisms clamp the two sides of the packaged bag, drive the packaged bag after filling to move and guide it into the packaged bag sealing mechanism. The packaging bag sealing mechanism is either an automatic sewing machine for the packaging bag opening or a heat-sealing mechanism for the packaging bag opening; the base is fixedly connected to the frame as one unit.

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