Chemical fertilizer bagging device with automatic discharging function

Abstract

The invention relates to the technical field of chemical fertilizer bagging, and discloses a chemical fertilizer bagging device with an automatic discharging function, the chemical fertilizer bagging device comprises a bag filling machine, an opening sewing machine arranged on one side of the bag filling machine and a conveyor belt arranged below the bag filling machine and the opening sewing machine, and a righting mechanism is arranged on the conveyor belt; the righting mechanism comprises an equipment box arranged above the conveying belt, a driving shaft rotationally arranged on the bottom wall in the equipment box, a rotating arm fixed to the driving shaft, hinge rods hinged to the two ends of the rotating arm, a connecting plate hinged to the other ends of the hinge rods and a connecting rod fixed to the connecting plate. The clamping plate is fixed at the bottom end of the connecting rod; and the first electric push rod is mounted on the inner bottom wall of the equipment box. According to the chemical fertilizer bagging device with the automatic discharging function, the straightening mechanism is arranged to squeeze and straighten a chemical fertilizer bag, the posture of the chemical fertilizer bag can be tidied in advance when the chemical fertilizer bag enters a hemming machine, and the situation that when the chemical fertilizer bag enters the hemming machine, a hemming opening inclines in the wrong direction is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizer bag filling, and in particular to a fertilizer bag filling device with an automatic unloading function. Background Art

[0002] Chemical fertilizers, also known as inorganic fertilizers, include nitrogen fertilizers, phosphate fertilizers, compound fertilizers, etc. During the production process of fertilizers, a filling device is required to centrally fill and package the fertilizers. A conveyor belt is spliced ​​at the bottom of the filling device. The fertilizer bags filled with fertilizers are transported to the seam position with the help of the conveyor belt to complete the subsequent seam operation. After that, the bagged fertilizers with the seams completed are transported by the conveyor belt to complete automatic unloading.

[0003] The existing publication number CN212861942U discloses a functional weighing and packaging device for organic fertilizer production, comprising a frame and a hopper, wherein the top end of the frame is fixedly connected to the hopper, the bottom end of the frame is installed with a supporting member, baffles are fixedly connected to the centers of both sides of the inner wall of the frame, the outer wall of the baffle is fixedly connected to a support rod, and the top end of the baffle is installed with a clamping member. Although the above technical scheme can be used in conjunction with a cross bar, a first sleeve, a support plate and a threaded block, when the organic fertilizer enters the fertilizer bag, the weight increase can be used to support the organic fertilizer, and the fertilizer bag can be clamped and fixed by the coordination of a vertical plate, a spring, a top block, a support rod, a clamping plate and a pull rod. After the feed enters the inside of the fertilizer bag, it will not affect the removal of the fertilizer bag. By the coordination of the support block, the fixed block, the second sleeve and the handle, the clamping member can be opened.

[0004] However, in the prior art, in order to allow the fertilizer bags to enter the sewing machine in the correct posture, the conventional practice is that the staff is required to manually straighten the fertilizer bags on the conveyor belt, and then manually squeeze the bag mouth of the fertilizer bag to make the bag mouth fit tightly, so as to achieve a state that is convenient for the sewing machine to operate. However, when placing the fertilizer bags, the operators are disturbed by factors such as proficiency, concentration and work rhythm, and it is difficult to ensure that the fertilizer bags are accurately placed every time. Once the placement angle deviates, the fertilizer bag will be skewed in the wrong direction when entering the sewing process, resulting in the bag mouth being skewed, and the fertilizer bags on both sides of the seam being difficult to align neatly. The skewed seam and uneven sides will make it impossible to sew tightly in some areas of the seam, forming a gap. In the subsequent fertilizer storage and transportation stage, under external vibration, handling and squeezing, the fertilizer is very likely to leak from the gap, causing resource loss. Therefore, a fertilizer filling device with automatic unloading function is needed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a fertilizer bag filling device with an automatic unloading function to solve the problem that the fertilizer bags on the conveyor belt are placed at a deviation angle as mentioned in the above background technology, and the fertilizer bags are easily skewed in the wrong direction when entering the sewing process, making it difficult to align the fertilizer bags on both sides of the seam.

[0006] The present invention provides a fertilizer bag filling device with automatic unloading function, which adopts the following technical solution:

[0007] A fertilizer bag filling device with automatic unloading function, comprising a bag filling machine for filling fertilizer bags, a bag fixing mechanism arranged on the bag filling machine for clamping the fertilizer bags, a seaming machine arranged on one side of the bag filling machine for sewing the bag openings of the fertilizer bags, and a conveyor belt arranged below the bag filling machine and the seaming machine for conveying the fertilizer bags, wherein a straightening mechanism is arranged on the conveyor belt, and the straightening mechanism is located between the bag filling machine and the seaming machine;

[0008] The straightening mechanism comprises an equipment box arranged above the conveyor belt, a driving shaft rotatably arranged on the bottom wall of the equipment box, a rotating arm fixed on the driving shaft, a hinged rod hinged at both ends of the rotating arm, a connecting plate hinged to the other end of the hinged rod, a connecting rod fixed on the connecting plate, a clamping plate fixed at the bottom end of the connecting rod, and a first electric push rod installed on the bottom wall of the equipment box, wherein the output end of the first electric push rod is connected to one set of connecting plates;

[0009] When the first electric push rod contracts, one group of connecting plates is controlled to move, and the other group of connecting plates is controlled to move through the cooperation of the hinge rod, the rotating arm and the driving shaft, so that the two groups of clamping plates are close to each other to squeeze and straighten the fertilizer bag. A positioning plate is also fixed on the side where the two groups of clamping plates are close to each other.

[0010] Furthermore, the equipment box is also provided with a plug-in mechanism for pulling the bag mouth of the fertilizer bag, the plug-in mechanism includes a traction component symmetrically arranged at the bottom end of the equipment box, a spline rod crossing the traction component, a sleeve block fixed at both ends of the spline rod, and a threaded rod threadedly connected to one group of the sleeve blocks, the threaded rod is rotatably connected to the equipment box, each group of the traction components includes a first traction plate and a second traction plate, and the first traction plate and the second traction plate are arranged opposite to each other;

[0011] A clamping mechanism is also provided at the bottom end of the equipment box, and the clamping mechanism includes a connecting plate slidably arranged at the bottom end of the equipment box, tracks symmetrically opened on the connecting plate, sliding columns slidably arranged in each group of tracks, a guide plate fixedly connected to the sliding columns, a fixing plate fixed on the connecting plate, and a second electric push rod fixedly installed at the bottom end of the equipment box, and the output end of the second electric push rod is connected to the fixing plate.

[0012] Furthermore, an insertion rod is symmetrically fixed to the bottom end of each group of guide plates, and a plug hole for movably inserting the insertion rod is provided on the first traction plate.

[0013] Furthermore, another group of the blocks is penetrated by a column, which is fixed on the equipment box, and discs for limiting are fixed on the upper and lower parts of the column respectively, and switch buttons for controlling the opening and closing of the second electric push rod are installed on the sides where the two groups of discs are close to each other.

[0014] Furthermore, the plug-in mechanism also includes a connecting shaft fixedly connected to the threaded rod, a driven gear fixed to the top of the connecting shaft, a transmission gear meshing with the driven gear, and a driving gear meshing with the transmission gear, the driving gear is fixed on the driving shaft, the transmission gear is rotatably arranged in the equipment box through the shaft, and the connecting shaft is rotatably arranged in the equipment box.

[0015] Furthermore, the connecting rods are fixed in pairs on each set of connecting plates, and the equipment box is provided with guide grooves for the connecting rods to slide.

[0016] Furthermore, a sliding seat is symmetrically fixed to the bottom end of each group of the connecting plates, a sliding groove is provided on the sliding seat, and a guide seat slidably connected to the sliding groove is fixed to the inner bottom wall of the equipment box.

[0017] Furthermore, a convex pad is provided on one side of the first traction plate and the second traction plate that are close to each other, and a hook-shaped plate is fixed on the top of each of the first traction plate and the second traction plate.

[0018] Furthermore, side plates are symmetrically fixed on both sides of the connecting plate, grooves are formed on the side plates, protruding rods are slidably connected in the grooves, and the protruding rods are fixed to the bottom end of the equipment box.

[0019] Furthermore, the bag filling machine is also provided with a controller, and the bag filling machine, the bag fixing mechanism, the seaming machine, the conveyor belt and the first electric push rod are all electrically connected to the controller.

[0020] Beneficial effects of the present invention:

[0021] 1. By providing a straightening mechanism, the fertilizer bag can be squeezed and straightened by the straightening mechanism, and the posture of the fertilizer bag can be "rectified" in advance when the fertilizer bag enters the sewing machine, thereby preventing the fertilizer bag from having an angle deviation or tilt during the transmission process, which causes the seam of the fertilizer bag to be skewed in the wrong direction when entering the sewing machine. At the same time, it reduces the reliance on manual intervention and improves the seam quality. In addition, through the squeezing and straightening of the straightening mechanism, the clamping plate can adapt to the shape and size of the fertilizer bag, thereby ensuring the consistency of the position of the fertilizer bag and reducing the problem of deviation due to the placement angle of the fertilizer bag.

[0022] 2. By providing a plug-in mechanism and a clamping mechanism, the plug-in mechanism controls the first traction plate and the second traction plate to be located inside and outside the bag mouth of the fertilizer bag respectively, and then the clamping mechanism is used to clamp the first traction plate and the second traction plate on both sides of the bag mouth of the fertilizer bag respectively, and then the bag mouth of the fertilizer bag is pulled upward, so that the heights of both sides of the bag mouth are aligned when the sewing machine is working, so that the seam can be tightly and evenly pressurized and sewn, thereby improving the firmness and sealing of the seam, improving the seam quality, and avoiding fertilizer leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the conveyor belt, the straightening mechanism and the plug-in mechanism of the present invention;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the straightening mechanism, the plug-in mechanism and the clamping mechanism of the present invention;

[0026] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the righting mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting plate, connecting rod and clamping plate of the present invention;

[0028] Figure 6 It is a schematic cross-sectional view of the three-dimensional structure of the equipment box of the present invention;

[0029] Figure 7 It is a three-dimensional structural schematic diagram of the plug-in mechanism, column, disc and switch button of the present invention;

[0030] Figure 8 It is a three-dimensional structural schematic diagram of the plug-in mechanism and the clamping mechanism of the present invention;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the clamping mechanism and the first traction plate of the present invention;

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the equipment box, the connecting plate, the fixing plate and the second electric push rod of the present invention;

[0033] Fig.11 It is a schematic exploded view of the three-dimensional structure of the guide plate and the first traction plate of the present invention.

[0034] In the figure:

[0035] 1. Bag filling machine; 2. Bag fixing mechanism; 3. Seaming machine; 4. Conveyor belt; 5. Straightening mechanism; 51. Equipment box; 511. Guide groove; 52. Driving shaft; 53. Rotating arm; 54. Articulated rod; 55. Connecting plate; 551. Sliding seat; 552. Sliding groove; 553. Guide seat; 56. Connecting rod; 57. Clamping plate; 571. Positioning plate; 58. First electric push rod; 6. Plug-in mechanism; 61. Traction component; 611. First traction plate; 612. Second traction plate; 613. Convex pad; 614 , hook plate; 62, spline rod; 63, sleeve block; 631, column; 632, disc; 64, threaded rod; 65, connecting shaft; 66, driven gear; 67, transmission gear; 68, driving gear; 69, shaft; 7, clamping mechanism; 71, connecting plate; 711, side plate; 712, groove; 713, convex rod; 72, track; 73, sliding column; 74, guide plate; 741, plug rod; 742, socket; 75, fixing plate; 76, second electric push rod; 77, switch button; 8, controller. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] Reference Figure 1-Figure 2 A fertilizer bagging device with automatic unloading function includes a bagging machine 1 for bagging fertilizer, a bag fixing mechanism 2 arranged on the bagging machine 1 for clamping the fertilizer bag, a seaming machine 3 arranged on one side of the bagging machine 1 for sewing the fertilizer bag, and a conveyor belt 4 arranged below the bagging machine 1 and the seaming machine 3 for conveying and unloading the fertilizer bag. The conveyor belt 4 rotates intermittently and is used to convey and automatically unload the fertilizer bag when the conveyor belt 4 rotates.

[0038] Reference Figure 1-Figure 5 A straightening mechanism 5 for straightening the fertilizer bag is provided on the conveyor belt 4 , and the straightening mechanism 5 is located between the bag filling machine 1 and the seaming machine 3 .

[0039] Specifically, the straightening mechanism 5 includes an equipment box 51 arranged above the conveyor belt 4, a driving shaft 52 rotatably arranged on the bottom wall of the equipment box 51, a rotating arm 53 fixed on the driving shaft 52, a hinged rod 54 hinged at both ends of the rotating arm 53, a connecting plate 55 hinged to the other end of the hinged rod 54, a connecting rod 56 fixed on the connecting plate 55, a clamping plate 57 fixed at the bottom end of the connecting rod 56, and a first electric push rod 58 installed on the bottom wall of the equipment box 51, and the output end of the first electric push rod 58 is connected to one of the groups The connecting plates 55 are connected, wherein the bottom end of the driving shaft 52 is rotatably connected to the center position of the bottom wall inside the equipment box 51 through a bearing. When the first electric push rod 58 is started and retracted, one group of connecting plates 55 is controlled to move, and then the rotating arm 53 is rotated around the driving shaft 52 through the hinged cooperation of the hinged rod 54 to control the movement of the other group of connecting plates 55, thereby making the two groups of connecting plates 55 approach each other, driving the connecting rod 56 to drive the two groups of clamping plates 57 to approach each other and squeeze and straighten the fertilizer bag.

[0040] Reference Figure 5-Figure 6 The connecting rods 56 are fixed in pairs on each set of connecting plates 55. The connecting rods 56 arranged in pairs can improve the firmness and stability of the clamping plate 57 in the process of squeezing and straightening the fertilizer bag. The equipment box 51 is provided with guide grooves 511 for the connecting rods 56 to slide. When the two sets of connecting plates 55 are close to or away from each other in the equipment box 51, the connecting rods 56 can slide back and forth in the corresponding guide grooves 511.

[0041] A sliding seat 551 is symmetrically fixed to the bottom end of each set of connecting plates 55, and a slide groove 552 is opened on the sliding seat 551. A guide seat 553 slidably connected to the slide groove 552 is fixed to the inner bottom wall of the equipment box 51. By symmetrically fixing the sliding seat 551 at the bottom end of each set of connecting plates 55, when the two sets of connecting plates 55 approach or move away from each other, the sliding seat 551 can be slidably connected on the guide seat 553 through the slide groove 552, thereby improving the stability of the two sets of connecting plates 55 during movement.

[0042] By utilizing the straightening mechanism 5, the fertilizer bag can be squeezed and straightened, and the posture of the fertilizer bag can be "rectified" in advance when the fertilizer bag enters the sewing machine 3, thereby preventing the fertilizer bag from having an angular deviation or tilt during the transmission process, which causes the seam to be skewed in the wrong direction when the fertilizer bag enters the sewing machine 3. At the same time, it reduces the reliance on manual intervention and improves the quality of the seam. It should be noted that a positioning plate 571 is fixed on the side where the two groups of clamping plates 57 are close to each other, and the positioning plate 571 is located on the inner and upper sides of the clamping plate 57. The positioning plate 571 can fix the two sides of the fertilizer bag in advance, thereby further improving the stability of the clamping plate 57 when squeezing and straightening the fertilizer bag.

[0043] During use, when the fertilizer bag is filled by the bag filling machine 1, the conveyor belt 4 is in the open state, the bag fixing mechanism 2 releases the fixation of the fertilizer bag, and the fertilizer bag falls onto the conveyor belt 4 for transportation. When the fertilizer bag is transported to the straightening mechanism 5, the conveyor belt 4 is in the closed state, and the first electric push rod 58 is in the open state. The first electric push rod 58 controls the contraction so that the corresponding set of connecting plates 55 moves toward the driving shaft 52, and the hinged rod 54 hinged to the set of connecting plates 55 starts to rotate, which is beneficial to the The rotating arm 53 is controlled by the rotation of the hinged rod 54 to rotate around the active shaft 52, and then the other set of connecting plates 55 is controlled to move toward the active shaft 52 through the hinged cooperation of another set of hinged rods 54. At this time, the two sets of connecting plates 55 are close to each other, so that the connecting rod 56 slides in the corresponding guide groove 511 and drives the two sets of clamping plates 57 to approach each other. When the two sets of clamping plates 57 are close to each other, the positioning plate 571 can first contact and fix the fertilizer bag, and then the two sets of clamping plates 57 squeeze and straighten the fertilizer bag.

[0044] Reference Figure 3 , Figure 7-Figure 8 The equipment box 51 is also provided with a plug-in mechanism 6 for pulling the bag opening of the fertilizer bag.

[0045] Specifically, the plug-in mechanism 6 includes a traction component 61 symmetrically arranged at the bottom end of the equipment box 51, a spline rod 62 that crosses the traction component 61, a sleeve block 63 fixed at both ends of the spline rod 62, and a threaded rod 64 threadedly connected to one group of the sleeve blocks 63, one group of the sleeve blocks 63 is provided with a threaded groove matched with the threaded rod 64, the threaded rod 64 is rotatably connected to the equipment box 51, and a column 631 passes through the other group of the sleeve blocks 63, and the column 631 is fixed at the bottom end of the equipment box 51. When the threaded rod 64 rotates to control the sleeve block 63 to drive the spline rod 62 to move up and down, the column 631 plays a role in limiting the spline rod 62, so that the spline rod 62 drives the traction component 61 as a whole to move vertically up and down.

[0046] The plug-in mechanism 6 also includes a connecting shaft 65 fixedly connected to the threaded rod 64, a driven gear 66 fixed to the top of the connecting shaft 65, a transmission gear 67 meshing with the driven gear 66, and a driving gear 68 meshing with the transmission gear 67. The driving gear 68 is fixed on the driving shaft 52, and the transmission gear 67 is rotatably arranged in the equipment box 51 through the shaft 69. The connecting shaft 65 is rotatably arranged in the equipment box 51 through the bearing. When the first electric push rod 58 starts to control the two groups of connecting plates 55 to approach each other, the meshing between the driving gear 68, the transmission gear 67 and the driven gear 66 is utilized to make the connecting shaft 65 control the threaded rod 64 to rotate. During the rotation of the threaded rod 64, the spline rod 62 can be controlled to drive the traction component 61 to move up and down as a whole.

[0047] Among them, each group of traction components 61 includes a first traction plate 611 and a second traction plate 612. The first traction plate 611 and the second traction plate 612 located on the same side are arranged opposite to each other, and the two groups of second traction plates 612 are arranged back to back and fit each other, and the two groups of first traction plates 611 are provided with spline grooves for the spline rod 62 to movably insert. When the spline rod 62 drives the traction component 61 to move downward as a whole, the second traction plate 612 moves downward and is inserted into the bag mouth of the fertilizer bag after straightening, and the first traction plate 611 is outside the bag mouth of the fertilizer bag. Since the traction component 61 is symmetrically arranged, the two groups of first traction plates 611 are respectively located on both sides outside the bag mouth of the fertilizer bag, and the two groups of second traction plates 612 are both inserted into the bag mouth of the fertilizer bag.

[0048] Among them, refer to Figure 3 , Figure 8-Figure 10 The bottom end of the equipment box 51 is also provided with a clamping mechanism 7 for controlling the two groups of first traction plates 611 to approach each other.

[0049] Specifically, the clamping mechanism 7 includes a connecting plate 71 slidably arranged at the bottom end of the equipment box 51, a track 72 symmetrically opened on the connecting plate 71, a slide column 73 slidably arranged in each group of tracks 72, a guide plate 74 fixedly connected to the slide column 73, a fixed plate 75 fixed on the connecting plate 71, and a second electric push rod 76 fixedly installed at the bottom end of the equipment box 51. The output end of the second electric push rod 76 is fixedly connected to the fixed plate 75. By controlling the second electric push rod 76 to contract and control the fixed plate 75 to move, the connecting plate 71 is driven to slide at the bottom end of the equipment box 51. Through the sliding cooperation of the track 72 and the slide column 73, the two groups of guide plates 74 drive the first traction plate 611 to approach each other, so that the first traction plate 611 and the second traction plate 612 on the same side can clamp the bag mouth of the fertilizer bag.

[0050] Reference Fig.11 Each set of guide plates 74 is telescopically connected to the corresponding first traction plate 611 through an insertion rod 741, and the insertion rod 741 is symmetrically fixed at the bottom end of the guide plate 74. The first traction plate 611 is provided with a socket 742 for the insertion rod 741 to be movably inserted. When the threaded rod 64 rotates to control the spline rod 62 to drive the two sets of first traction plates 611 and the second traction plates 612 to move up and down, the insertion rod 741 can move up and down in the socket 742, so that the guide plate 74 can easily control the two sets of first traction plates 611 to approach each other.

[0051] Among them, refer to Figure 9-10The side panels 711 are symmetrically fixed on both sides of the connecting plate 71. The side panels 711 are provided with grooves 712. A protruding rod 713 is slidably connected in the grooves 712. The protruding rod 713 is fixed to the bottom end of the equipment box 51. The connecting plate 71 can be stably moved at the bottom end of the equipment box 51 through the sliding cooperation of the side panels 711, the grooves 712 and the protruding rod 713.

[0052] By clamping both sides of the bag opening to correct the position of the bag opening and ensure the flatness of the bag opening, the two sides of the bag opening are aligned at the same height when the sewing machine 3 is in operation, so that the seam can be tightly and evenly pressed and sewn, the firmness and sealing of the seam are improved, and fertilizer leakage is avoided.

[0053] It should be noted that, refer to Figure 7 Discs 632 for limiting are fixed to the upper and lower parts of the column 631, and switch buttons 77 for controlling the opening and closing of the second electric push rod 76 are installed on the sides where the two sets of discs 632 are close to each other. The switch button 77 is electrically connected to the second electric push rod 76.

[0054] During use, when the two groups of connecting plates 55 approach each other under the control of the first electric push rod 58 and drive the clamping plate 57 to straighten the fertilizer bag, the driving shaft 52 rotates. At this time, the rotation of the driving shaft 52 drives the driving gear 68 to rotate, and then controls the transmission gear 67 and the driven gear 66 to rotate, so that the driven gear 66 drives the connecting shaft 65 and the threaded rod 64 to rotate. At this time, the sleeve block 63 drives the spline rod 62 and the traction component 61 to move downward as a whole through the limit of the column 631. When the spline rod 62 drives the traction component 61 to move downward as a whole, the insertion rod 741 can slide in the insertion hole 742, and then the two groups of second traction plates 612 move downward and are inserted into the bag mouth of the fertilizer bag after straightening. The two groups of first traction plates 611 are respectively in the fertilizer bag. On both sides outside the bag opening, when the spline rod 62 moves down to the disk 632 fixed below the column 631, the spline rod 62 contacts the switch button 77 on the lower disk 632, and the second electric push rod 76 is activated at this time, so that the second electric push rod 76 contracts and pulls the fixing plate 75 and the connecting plate 71 to slide along the direction of the protruding rod 713. While the connecting plate 71 slides, the guide plate 74 drives the plugging rod 741 and the first traction plate 611 to move in the direction of the second traction plate 612 through the sliding cooperation of the track 72 and the sliding column 73. At this time, the first traction plate 611 can move on the surface of the spline rod 62, that is, the two groups of first traction plates 611 are close to each other. After the first traction plate 611 and the second traction plate 612 are close, they clamp the two sides of the bag opening of the fertilizer bag;

[0055] At this time, the first electric push rod 58 is controlled to reset again, so that the two sets of connecting plates 55 are separated from each other and reset through the cooperation of the active shaft 52, the rotating arm 53 and the hinge rod 54. The active gear 68, the transmission gear 67 and the driven gear 66 are meshed, so that the connecting shaft 65 drives the threaded rod 64 to reverse, and the spline rod 62 drives the first traction plate 611 and the second traction plate 612 to move upward. While the first traction plate 611 and the second traction plate 612 move upward, they are still in a state of clamping the two sides of the bag mouth of the fertilizer bag, so that the bag mouth of the fertilizer bag can be pulled and pulled, so that the fertilizer bag can be moved. The heights of both sides of the bag mouth are aligned. When the first traction plate 611 and the second traction plate 612 are separated from the bag mouth of the fertilizer bag, the spline rod 62 moves up to the disk 632 fixed above the column 631. At this time, the spline rod 62 contacts the switch button 77 on the upper disk 632, and controls the second electric push rod 76 to reset again, so that the connecting plate 71 slides and resets along the direction of the convex rod 713 again, and then the two groups of first traction plates 611 are reset, waiting for the regularization and correction of the bag mouth of the next fertilizer bag to be filled. After that, the conveyor belt 4 is in the open state to transport the fertilizer bag to the sewing machine 3 for sewing operation.

[0056] Through the cooperation of the plug-in mechanism 6 and the clamping mechanism 7, the plug-in mechanism 6 controls the first traction plate 611 and the second traction plate 612 to be respectively located inside and outside the bag mouth of the fertilizer bag, and then through the clamping mechanism 7, the first traction plate 611 and the second traction plate 612 clamp the two sides of the bag mouth of the fertilizer bag respectively, and then the bag mouth of the fertilizer bag is pulled upward, so that the bag mouth of the fertilizer bag reaches an ideal shape and position before the sewing, which helps to better complete the sewing operation, reduce the problem of loose or uneven seams at the bag mouth, and improve the quality of the seam.

[0057] In addition, the plug-in mechanism 6 can plug the bag mouth of the fertilizer bag while the straightening mechanism 5 is working, and the clamping mechanism 7 can quickly clamp the bag mouth of the fertilizer bag after the plug-in is completed. Later, when the straightening mechanism 5 is reset, the bag mouth of the fertilizer bag can be corrected at the same time, so that the heights of both sides of the bag mouth are aligned consistently, thereby automatically completing the regularization of the bag mouth, reducing the involvement of operators, and simplifying the operation process.

[0058] Further, refer to Fig. 9A convex pad 613 is provided on the side where the first traction plate 611 and the second traction plate 612 are close to each other. The setting of the convex pad 613 can increase the friction between the first traction plate 611 and the second traction plate 612 and the bag mouth of the fertilizer bag when the two groups of first traction plates 611 are close to each other. A hook plate 614 is fixed to the top of the first traction plate 611 and the second traction plate 612. The setting of the hook plate 614 can smooth the inside and outside of the bag mouth of the fertilizer bag when the first traction plate 611 and the second traction plate 612 clamp the bag mouth of the fertilizer bag and pull it upward, and can also guide the first traction plate 611 to be inserted into the fertilizer bag. The end of the hook plate 614 close to the fertilizer bag is rounded, so it will not cause damage to the fertilizer bag.

[0059] Reference Figure 1 The bag filling machine 1 is also provided with a controller 8, and the bag filling machine 1, the bag fixing mechanism 2, the seaming machine 3, the conveyor belt 4 and the first electric push rod 58 are all electrically connected to the controller 8. Among them, the specific composition and specific principles of the bag filling machine 1, the bag fixing mechanism 2, the seaming machine 3 and the conveyor belt 4 are the existing technologies well known in the art, so they are not described in detail here.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fertilizer bagging device with an automatic unloading function, comprising a bagging machine (1) for bagging fertilizer, a bag fixing mechanism (2) arranged on the bagging machine (1) for clamping the fertilizer bag, a seaming machine (3) arranged on one side of the bagging machine (1) for sewing the bag mouth of the fertilizer bag, and a conveyor belt (4) arranged below the bagging machine (1) and the seaming machine (3) for conveying the fertilizer bag, characterized in that: The conveyor belt (4) is provided with a straightening mechanism (5), and the straightening mechanism (5) is located between the bag filling machine (1) and the seaming machine (3); The straightening mechanism (5) comprises an equipment box (51) arranged above the conveyor belt (4), a driving shaft (52) rotatably arranged on the bottom wall of the equipment box (51), a rotating arm (53) fixed on the driving shaft (52), a hinged rod (54) hinged at both ends of the rotating arm (53), a connecting plate (55) hinged to the other end of the hinged rod (54), a connecting rod (56) fixed on the connecting plate (55), a clamping plate (57) fixed at the bottom end of the connecting rod (56), and a first electric push rod (58) installed on the bottom wall of the equipment box (51), wherein the output end of the first electric push rod (58) is connected to one set of the connecting plates (55); When the first electric push rod (58) contracts, one group of connecting plates (55) is controlled to move, and the other group of connecting plates (55) is controlled to move through the cooperation of the hinge rod (54), the rotating arm (53) and the driving shaft (52), so that the two groups of clamping plates (57) are brought close to each other to squeeze and straighten the fertilizer bag. A positioning plate (571) is also fixed on the side where the two groups of clamping plates (57) are close to each other.

2. The fertilizer bag filling device with automatic unloading function according to claim 1 is characterized in that: The equipment box (51) is also provided with a plug-in mechanism (6) for pulling the bag mouth of the fertilizer bag, the plug-in mechanism (6) comprising a traction component (61) symmetrically arranged at the bottom end of the equipment box (51), a spline rod (62) crossing the traction component (61), sleeves (63) fixed at both ends of the spline rod (62), and a threaded rod (64) threadedly connected to one group of the sleeves (63), the threaded rod (64) being rotatably connected to the equipment box (51), each group of the traction components (61) comprising a first traction plate (611) and a second traction plate (612), the first traction plate (611) and the second traction plate (612) being arranged opposite to each other; The bottom end of the equipment box (51) is also provided with a clamping mechanism (7), the clamping mechanism (7) comprising a connecting plate (71) slidably arranged at the bottom end of the equipment box (51), rails (72) symmetrically arranged on the connecting plate (71), sliding posts (73) slidably arranged in each group of rails (72), a guide plate (74) fixedly connected to the sliding posts (73), a fixing plate (75) fixed on the connecting plate (71), and a second electric push rod (76) fixedly installed at the bottom end of the equipment box (51), wherein the output end of the second electric push rod (76) is connected to the fixing plate (75).

3. The fertilizer bag filling device with automatic unloading function according to claim 2 is characterized in that: The bottom end of each group of guide plates (74) is symmetrically fixed with an insertion rod (741), and the first traction plate (611) is provided with an insertion hole (742) for the insertion rod (741) to be movably inserted.

4. The fertilizer bag filling device with automatic unloading function according to claim 2 is characterized in that: Another set of the sleeve blocks (63) has a column (631) running through it. The column (631) is fixed on the equipment box (51). Discs (632) for limiting are fixed above and below the column (631) respectively. Switch buttons (77) for controlling the opening and closing of the second electric push rod (76) are installed on the sides of the two sets of discs (632) that are close to each other.

5. The fertilizer bag filling device with automatic unloading function according to claim 2 is characterized in that: The plug-in mechanism (6) further comprises a connecting shaft (65) fixedly connected to the threaded rod (64), a driven gear (66) fixed to the top end of the connecting shaft (65), a transmission gear (67) meshing with the driven gear (66), and a driving gear (68) meshing with the transmission gear (67); the driving gear (68) is fixed on the driving shaft (52); the transmission gear (67) is rotatably disposed in the equipment box (51) via a shaft (69); and the connecting shaft (65) is rotatably disposed in the equipment box (51).

6. The fertilizer bag filling device with automatic unloading function according to claim 1 is characterized in that: The connecting rods (56) are fixed in pairs on each set of connecting plates (55), and the equipment box (51) is provided with guide grooves (511) for the connecting rods (56) to slide.

7. The fertilizer bag filling device with automatic unloading function according to claim 1 is characterized in that: A sliding seat (551) is symmetrically fixed to the bottom end of each group of the connecting plates (55), and a sliding groove (552) is provided on the sliding seat (551). A guide seat (553) slidably connected to the sliding groove (552) is fixed to the inner bottom wall of the equipment box (51).

8. The fertilizer bag filling device with automatic unloading function according to claim 2 is characterized in that: A convex pad (613) is provided on one side of the first traction plate (611) and the second traction plate (612) that are close to each other, and a hook-shaped plate (614) is fixed on the top of each of the first traction plate (611) and the second traction plate (612).

9. The fertilizer bag filling device with automatic unloading function according to claim 2, characterized in that: Side plates (711) are symmetrically fixed on both sides of the connecting plate (71), and a groove (712) is provided on the side plate (711). A convex rod (713) is slidably connected in the groove (712), and the convex rod (713) is fixed to the bottom end of the equipment box (51).

10. The fertilizer bag filling device with automatic unloading function according to claim 1, characterized in that: The bag filling machine (1) is also provided with a controller (8), and the bag filling machine (1), the bag fixing mechanism (2), the seaming machine (3), the conveyor belt (4) and the first electric push rod (58) are all electrically connected to the controller (8).

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