A fully automatic loading machine

Abstract

The present invention relates to a fully automatic feeding machine, which includes a primary conveying unit arranged on the ground, a turning unit arranged at the tail of the primary conveying unit, a secondary conveying unit arranged on one side of the turning unit, and a stacking evacuation unit arranged at the tail of the secondary conveying unit for evacuating stacked cardboard; a material pushing unit for stripping the materials of the turning unit is arranged on one side of the turning unit. The advantages of the present invention are: replacing manual labor to achieve automated operation, reducing labor intensity, and improving production efficiency.

Description

Technical Field

[0001] The invention relates to the field of packaging conveying machinery, in particular to a full-automatic feeding machine. Background Art

[0002] Corrugated cardboard is widely used as the main raw material for carton production due to its high mechanical strength and ability to withstand collisions and falls during transportation. Carton packaging is a common form of packaging.

[0003] In the process of carton production, there are roughly two ways of feeding materials to equipment such as die-cutters or printing machines. One is the manual method, which requires one or two people to carry the paper stacks (i.e., several cardboards stacked to a certain height) in batches to the paper feed table of the die-cutting machine or printing machine; the other is the semi-automatic method, which uses a loader to raise the entire stack of cardboard, and then manually delivers the cardboard to the paper feed table of the die-cutting machine or printing machine.

[0004] Regardless of the above methods, personnel are required to control the entire paper feeding process, which has a low degree of automation, increases labor intensity, and reduces production efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, one of the purposes of the present invention is to provide a fully automatic feeding machine, which has the advantage of replacing manual labor to achieve automated operation, reduce labor intensity and improve production efficiency.

[0006] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0007] A fully automatic loading machine comprises a primary conveying unit arranged on the ground, a turning unit arranged at the tail of the primary conveying unit, a secondary conveying unit arranged at one side of the turning unit, and a stacking and evacuating unit arranged at the tail of the secondary conveying unit for evacuating stacked cardboards; a material stripping unit for stripping materials from the turning unit is arranged at one side of the turning unit.

[0008] By adopting the above technical solution, when the staff transports the stacked cardboard, first place the stacked cardboard on the primary conveying unit. Through the conveyance of the primary conveying unit, the cardboard is conveyed to the end of the primary conveying unit of the cardboard conveyor belt, and the cardboard is transferred to the flipping unit. The flipping unit lifts and rotates the stacked cardboard to keep the cardboard in a standing state. The feeding unit can dial the stacked cardboard in batches, so that the cardboard falls on the secondary conveying unit. Through the conveyance of the secondary conveying unit, the cardboard in batches is conveyed to the stacking and evacuation unit. Since the path of the secondary conveying unit is relatively long and the cardboard is conveyed in batches, the height of the cardboard conveyance can be reduced, thereby improving the stability during the cardboard conveyance. Finally, the cardboard will gather on the stacking and evacuation unit, so that the cardboard in batches is stacked again and dispersed into single-layer boards for conveyance, and the single-layer boards are used in subsequent work. In the work again, the automatic conveyance of the board materials is realized through the primary conveying unit, the flipping unit, the feeding unit, the secondary conveying unit, and the stacking and evacuation unit, replacing manual labor to achieve automated operation, reducing the labor consumption of the staff, and improving the production efficiency.

[0009] In a preferred example of the present invention, it can be further configured that: the flipping unit includes a first support frame, a supporting and lifting assembly is arranged on the first support frame, a second support frame is rotatably connected to both sides of the first support frame, and a third support frame fixed on the ground is rotatably connected to both sides of the second support frame. The rotation axes of the first support frame and the second support frame are parallel to the rotation axes of the second support frame and the third support frame. A number of first hydraulic cylinders for rotating and lifting the second support frame are arranged in the third support frame, and a number of second hydraulic cylinders for further lifting the first support frame are arranged on the second support frame.

[0010] By adopting the above technical solution, when the cardboard moves to the end of the primary conveying unit, the cardboard will be placed on the supporting and lifting assembly. Through the operation of the first hydraulic cylinder, the second support frame and the first frame body are driven to rotate together. Since the telescopic distance of the first hydraulic cylinder is limited, the telescopic movement of the second hydraulic cylinder is required to drive the first support frame to rotate, so that the cardboard on the supporting and lifting assembly rotates to a standing state, which is convenient for the feeding unit to perform the grouping and conveying work on the stacked cardboard.

[0011] In a preferred example of the present invention, it can be further configured that: the supporting and lifting assembly includes a first driving roller horizontally arranged on the first support frame, a number of first sprockets are sleeved on the first driving roller, a number of second sprockets corresponding to the number and position of the first sprockets are arranged at the tail of the first support frame, the second sprockets are rotatably connected to the first support frame, a first chain is sleeved on each of the corresponding first sprocket and second sprocket, and a supporting arm for supporting the cardboard is fixedly connected to one side of each first chain facing the primary conveying unit; a driving assembly for driving the first driving roller to rotate is also arranged on the first support frame.

[0012] By adopting the above technical solution, the driving component starts to drive the first driving roller to rotate. Through the transmission of the first sprocket and the second sprocket, a plurality of first chains are driven to rotate, thereby driving the supporting arm to lift along the moving track of the first chain. When the first support frame rotates and the cardboard remains standing, the movement of the supporting arm will drive the cardboard to move towards the material pushing unit, thus cooperating with the work of the material pushing unit. Since the supporting arm is directly fixed on the first chain, the movement of the first chain will directly drive the displacement of the supporting arm and cause the displacement of the cardboard. The structure is simple and the driving effect is remarkable.

[0013] In a preferred example of the present invention, it can be further configured that: the driving component includes a driving motor fixed on the back side of the first support frame. A driving sprocket is fixed on the output shaft of the driving motor. A driven sprocket is sleeved on the first driving roller. A second chain is commonly sleeved on the driving sprocket and the driven sprocket.

[0014] By adopting the above technical solution, when the driving component works, the driving motor starts to drive the driving sprocket to rotate. Through the transmission of the second chain, the driven sprocket is driven to rotate, and the first driving roller is driven to rotate accordingly. The overall structure of the driving component is simple and convenient for maintenance. Since the driving motor is located on the back of the first support frame, when the first hydraulic cylinder and the second hydraulic cylinder start, the first support frame will be driven to rise, thereby lifting the driving motor, which is convenient for later maintenance.

[0015] In a preferred example of the present invention, it can be further configured that: the secondary conveying unit includes a frame arranged at the tail of the flipping unit. A plurality of third conveyor belts are arranged side by side in the cardboard conveying direction inside the frame, and the third conveyor belts are arranged at intervals.

[0016] By adopting the above technical solution, when the material pushing unit pushes the cardboard out of the stacked cardboard, the cardboard will flip and fall on the third conveyor belt, and the long-distance transportation of the cardboard can be realized through the transmission of the third conveyor belt. Since the thickness of the pushed cardboard is limited, the center of gravity of the moving cardboard is relatively low and it is not easy to loosen, thereby improving the efficiency of cardboard transportation.

[0017] In a preferred example of the present invention, it can be further configured that: the material pushing unit includes a column erected on one side of the third support frame, a fixed arm horizontally arranged at the end of the column, a first cylinder horizontally arranged below the fixed arm along the cardboard conveying direction. The end of the piston rod of the first cylinder is fixed with a moving plate slidably connected to the fixed arm. A second cylinder is fixed on one side of the moving plate. The piston rod of the second cylinder extends and retracts in the vertical direction. The end of the piston rod of the second cylinder is fixed with a push plate inserted between adjacent cardboard.

[0018] By adopting the above technical solution, when the first support frame rotates to the point where the cardboard is in an upright state, the piston rod of the first cylinder extends out, driving the movable plate to slide on one side of the fixed arm, and then the second cylinder is started to drive the piston rod of the second cylinder to extend out, and the paddle plate is inserted into the gap between adjacent cardboards, and the extension and retraction of the first cylinder drives a number of cardboards to be flipped and fall onto the third conveyor belt. The staff can adjust the number of cardboards to be paddled at a time by the extension and retraction of the first cylinder, and the cardboard close to the support arm is made closer to the paddle assembly by the movement of the support arm, thereby realizing the transmission of all cardboards on the support arm.

[0019] In a preferred example, the present invention can be further configured as follows: the stacking and evacuation unit includes a fourth frame arranged at the tail of the secondary conveying unit, a plurality of fourth conveyor belts are arranged side by side on the fourth frame along the cardboard conveying aspect, a limit plate is vertically arranged at the tail of the fourth frame away from the secondary conveying unit, the limit plate is vertically slidably connected to the fourth frame, and a gap is left between the lower edge of the limit plate and the upper surface of the fourth conveyor belt.

[0020] By adopting the above technical solution, when the cardboard is conveyed to the end of the secondary conveying mechanism, the cardboard will fall onto the fourth conveyor belt and make the cardboard rest against the limiting plate, so that the cardboard is stacked more neatly. When the fourth conveyor belt is started, the cardboard will pass through the gap between the fourth conveyor belt and the limiting plate under the restriction of the lower edge of the limiting plate, so that the cardboard is conveyed on the fourth conveyor belt in a fish scale shape, thereby facilitating the subsequent processing of the cardboard.

[0021] In a preferred example, the present invention can be further configured as follows: a rotating shaft is horizontally arranged between the frames, a plurality of limit baffles are fixedly connected to the circumference of the rotating shaft along the length direction of the rotating shaft, the limit baffles are coplanarly arranged, the limit baffles are located between adjacent third conveyor belts, and a cylinder connecting rod assembly for driving the rotating shaft to rotate is arranged at one end of the rotating shaft.

[0022] By adopting the above technical solution, when the cardboard is conveyed on the third conveyor belt, it is inevitable that the cardboard will be misplaced or loose when it rotates from a vertical state to a horizontal state. When the limit baffle is in the initial state, the limit baffle is located above the third conveyor belt, and the stacked cardboard will abut against one side of several limit baffles during the conveyance process, so that the stacked cardboard is neatly limited.

[0023] In a preferred example, the present invention can be further configured as follows: the cylinder connecting rod assembly includes a drive plate fixedly connected to the end of the rotating shaft, and a fifth cylinder arranged on the outer side wall of the frame, the fifth cylinder is hinged on the outer side wall of the frame, and the end of the fifth cylinder piston rod is hinged to the drive plate.

[0024] By adopting the above technical solution, the telescopic movement of the fifth cylinder drives the driving plate to rotate around the rotating shaft, thereby driving the limiting baffle to rotate, realizing the material blocking function of the limiting baffle. The cylinder connecting rod assembly has a simple structure, which is convenient for the later maintenance of the staff.

[0025] In summary, the present invention includes at least one of the following beneficial technical effects:

[0026] First, reduce labor intensity and improve production efficiency. Through the primary conveying unit, the flipping unit, the material pushing unit, the secondary conveying unit, and the stacking and evacuation unit, the automatic conveying of the plates is realized, replacing manual labor with automated operation, reducing the labor consumption of the staff, and improving production efficiency;

[0027] Second, improve the neatness of the cardboard stacking. When the cardboard is being conveyed on the third conveyor belt, it is inevitable that the cardboard will be misaligned or loose when it rotates from the standing state to the horizontal state. When the limiting baffle is in the initial state, the limiting baffle is located above the third conveyor belt. During the conveying process of the stacked cardboard, it will abut against one side of several limiting baffles, thereby making the stacked cardboard neatly limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram of the fully automatic loading machine;

[0029] Figure 2 is the structural schematic diagram showing the flipping unit;

[0030] Figure 3 is the schematic diagram showing the working state of the flipping unit;

[0031] Figure 4 is the internal structural schematic diagram showing the first support frame;

[0032] Figure 5 is the structural schematic diagram showing the driving block;

[0033] Figure 6 is the structural schematic diagram showing the secondary conveying unit;

[0034] Figure 7 is the partial structural schematic diagram showing the material pushing unit;

[0035] Figure 8 is Figure 7 the partial enlarged schematic diagram of part A in

[0036] Figure 9 is the structural schematic diagram showing the position adjustment component;

[0037] Figure 10 is the schematic diagram showing the connection relationship between the connecting sleeve and the column;

[0038] Figure 11 Structural schematic diagram showing a stacked evacuation unit;

[0039] Figure 12 is a structural schematic diagram showing a displacement component;

[0040] Figure 13 is a sectional view showing a fixed block;

[0041] Figure 14 is a partial schematic diagram showing a displacement component.

[0042] In the figure, 1 is a primary conveying unit; 11 is a first conveyor belt; 2 is a flipping unit; 21 is a third support frame; 22 is a second support frame; 221 is a support rod; 23 is a first support frame; 231 is a support plane; 232 is a strip hole; 24 is a supporting lifting component; 241 is a first driving roller; 242 is a second sprocket; 243 is a first sprocket; 244 is a first chain; 245 is a driving block; 246 is a sliding groove; 247 is a supporting arm; 25 is a first hydraulic cylinder; 26 is a second hydraulic cylinder; 27 is a driving component; 271 is a driving motor; 272 is a driving sprocket; 273 is a driven sprocket; 274 is a second chain; 3 is a supporting and feeding unit; 31 is a fifth conveyor belt; 4 is a secondary conveying unit; 41 is a frame; 42 is a third conveyor belt; 5 is a stacked evacuation unit; 51 is a fourth frame; 52 is a fourth conveyor belt; 53 is a third hydraulic cylinder; 54 is a U-shaped frame; 55 is a limiting plate; 56 is a displacement component; 561 is a fixed block; 5611 is a mounting groove; 562 is a second lead screw; 563 is a second nut; 564 is a slide bar; 565 is a first slideway; 566 is a second motor; 567 is a fifth sprocket; 568 is an annular rack; 569 is a third chain; 6 is a material pushing unit; 61 is a column; 62 is a connecting sleeve; 63 is a connecting arm; 64 is a fixed arm; 65 is an adjusting component; 651 is a housing; 652 is a first motor; 653 is a first bevel gear; 654 is a first lead screw; 655 is a second bevel gear; 656 is a first nut; 657 is a first pulley; 66 is a third air cylinder; 67 is a first air cylinder; 671 is a moving plate; 672 is a sixth air cylinder; 673 is a seventh air cylinder; 68 is a partition plate; 681 is a first connecting plate; 682 is a partition block; 69 is a pushing plate; 7 is a rectifying component; 71 is a rotating shaft; 72 is a limiting baffle; 73 is a cylinder connecting rod component; 731 is a driving plate; 732 is a fifth air cylinder; 81 is a first slider; 82 is a first screw; 83 is a handwheel; 84 is a second slideway; 85 is a second slider; 86 is a second screw; 87 is a servo motor; 9 is a aligning component; 91 is an extension arm; 911 is a sliding groove; 92 is a third slider; 94 is a third screw; 95 is a third motor; 96 is a fifth frame; 97 is an eighth air cylinder; 98 is a clamping plate. Detailed implementation manners

[0043] The present invention will be further described in detail below with reference to the accompanying drawings.

[0044] A fully automatic loading machine, as Figure 1 shown, includes a primary conveying unit 1, a flipping unit 2, a supporting and guiding unit 3, a secondary conveying unit 4, a stacking and evacuating unit 5 arranged in sequence along the cardboard conveying direction; and a material pushing unit 6 arranged on one side of the flipping unit 2.

[0045] As Figure 1 shown, the primary conveying unit 1 includes two first conveyor belts 11 arranged on the ground. The two first conveyor belts 11 are arranged side by side, and there is a gap between the two first conveyor belts 11. The staff arranges the stacked cardboard at the end of the primary conveying unit 1, so that the two first conveyor belts 11 support the bottom of the cardboard, and drive the cardboard to move towards the flipping unit 2 under the conveyance of the first conveyor belts 11.

[0046] As Figure 2 and Figure 3 shown, the flipping unit 2 includes a third support frame 21 erected at the tail of the primary conveying unit 1. A second support frame 22 is rotatably connected inside the third support frame 21. A first support frame 23 is rotatably connected inside the second support frame 22. A supporting and lifting assembly 24 for supporting the cardboard is further arranged on the first support frame 23, and the rotation axes 71 of the third support frame 21 and the second support frame 22 are parallel to the rotation axes 71 of the second support frame 22 and the first support frame 23. Two first hydraulic cylinders 25 are arranged in parallel inside the third support. The first hydraulic cylinders 25 are abutted against the opposite inner walls of the third support frame 21, and the end of the body of the first hydraulic cylinder 25 is hinged to the inner wall of the third support frame 21. The end of the piston rod of the first hydraulic cylinder 25 is hinged to the side wall of the second support frame 22, and the two hinge axes of the first hydraulic cylinder 25 with the third support frame 21 and the second support frame 22 are parallel to the rotation axis 71 of the third support frame 21 and the second support frame 22; A support rod 221 is horizontally arranged inside the second support frame 22. Two second hydraulic cylinders 26 are arranged on the support rod 221. The cylinder body of the second hydraulic cylinder 26 is rotatably connected to the support rod 221. The end of the piston rod of the second hydraulic cylinder 26 is hinged to the back side of the first support frame 23. The rotation axis 71 of the second hydraulic cylinder 26 with the support rod 221 and the hinge axis of the second hydraulic cylinder 26 with the first support frame 23 are parallel to each other, and are parallel to the rotation axis 71 of the first support frame 23 and the second support frame 22.

[0047] As Figure 3 and Figure 5As shown, the supporting lifting assembly 24 includes a first active roller 241 horizontally arranged in the first support frame 23, the first active roller 241 is parallel to the rotating shaft 71 of the first support frame 23 and the second support frame 22, and the two ends of the first active roller 241 are rotatably connected with the relative inner part of the first support frame 23; the first active roller 241 is sleeved with three first sprocket wheels 243, and the three first sprocket wheels 243 are arranged at intervals. The tail of the first support frame 23 is provided with three second sprocket wheels 242, which are coaxially arranged and rotatably connected with the first support frame 23, and the three second sprocket wheels 242 are located at the tail of the corresponding first sprocket wheels 243, the three first sprocket wheels 243 are located between the two first conveyor belts 11 and the outside of the two conveyor belts, and the corresponding first sprocket wheels 243 and the second sprocket wheels 242 are located in the same plane, and the first sprocket wheels 243 and the first sprocket wheels 242 are sleeved with a first chain 244, and the back side of the first support frame 23 is also provided with a driving assembly 27 for driving the first active roller 241 to rotate. A support plane 231 is provided on one side of the first support frame 23 away from the second support frame 22 (here as Figure 2 As shown), the support plane 231 (here as Figure 2 Three bar holes 232 (as shown in FIG. 2 ) are provided along the distribution direction of each first chain 244 to expose the first chain 244. Figure 2 As shown in FIG. 1 ), a driving block 245 (here as shown) is fixedly connected to one of the links of the first chain 244. Figure 2 As shown in FIG. 2 , the two opposite side walls of the driving block 245 are provided with sliding grooves 246 that are inserted into the edge of the bar hole 232, so that during the rotation of the first chain 244, the driving block 245 is driven to slide along the length direction of the bar hole 232 under the restriction of the side walls of the bar hole 232. A supporting arm 247 is fixedly connected to the side of the driving block 245 away from the first chain 244. The supporting arm 247 is perpendicular to the supporting plane 231, and the supporting planes of the three supporting arms 247 are located in the same plane.

[0048] like Figure 4 As shown, the driving assembly 27 includes an active motor 271 fixedly connected to the back side of the first support frame 23, the output shaft of the active motor 271 is parallel to the first active roller 241, a driving sprocket 272 is coaxially fixedly connected to the output shaft of the active motor 271, and a driven sprocket 273 is coaxially fixedly connected to the circumferential surface of the first active roller 241, the driving sprocket 272 and the driven sprocket 273 are located in the same plane, and a second chain 274 is commonly sleeved on the driving sprocket 272 and the driven sprocket 273.

[0049] When the flipping unit 2 is in the initial state, the first support frame 23 is in the vertical state, while the three supporting arms 247 are in the horizontal state and are located below the two first conveyor belts 11. When the cardboard placed above the first conveyor belt 11 is conveyed to the end of the first conveyor belt 11, the cardboard is positioned directly above the three supporting arms 247. At this time, the driving motor 271 is started to drive the first chain 244 to rotate, thereby driving the three supporting arms 247 to slide upward along the length direction of the strip holes 232, and the stacked cardboard is supported on the three supporting arms 247. Then the first hydraulic cylinder 25 is activated to drive the second support frame 22 and the first support frame 23 to rotate simultaneously. Since the stroke of the first hydraulic cylinder 25 is limited, after the first hydraulic cylinder 25 extends and retracts to the maximum stroke, the second hydraulic cylinder 26 operates to drive the first support frame 23 to continue rotating. When the cardboard rotates to 80 degrees with respect to the ground, the second hydraulic cylinder 26 stops operating. At this time, the stacked cardboard faces the side of the supporting arms 247, so that the cardboard will not automatically flip and affect the subsequent work.

[0050] As Figure 6 and Figure 7 shown, the material pushing unit 6 includes a column 61 vertically fixed on the ground. A connecting sleeve 62 is sleeved on the column 61 (as shown here Figure 10 ). One side of the connecting sleeve 62 is horizontally fixed with a connecting arm 63, and the end of the connecting arm 63 is fixed with a horizontally arranged fixed arm 64. The fixed arm 64 is arranged along the cardboard conveying direction. A position adjusting component 65 for controlling the vertical displacement of the connecting sleeve 62 is also provided on the column 61. A third cylinder 66 is horizontally fixed on the lower surface of the fixed arm 64. The third cylinder 66 is arranged along the length direction of the fixed arm 64, and the piston rod of the third cylinder 66 faces the flipping unit 2. The end of the piston rod of the third cylinder 66 is fixed with a first cylinder 67. The first cylinder 67 is mounted below the fixed arm 64 and slides along the length direction of the fixed arm 64. The end of the piston rod of the first cylinder 67 is fixed with a vertically arranged moving plate 671. The moving plate 671 is also mounted on the lower surface of the fixed arm 64 and slides along the length direction of the fixed arm 64. One side of the moving plate 671 is fixed with a sixth cylinder 672 (as shown Figure 8 ) and a seventh cylinder 673 (as shown Figure 8 ). The sixth cylinder 672 and the seventh cylinder 673 are vertically arranged, and the end of the piston rod of the sixth cylinder 672 is fixed with a pair of separating plates 68 that abut against and separate the cardboard (as shown Figure 8 ), and the end of the piston rod of the seventh cylinder 673 is fixed with a pushing plate 69 that is inserted into the gap between the cardboard (as shown Figure 8 ).

[0051] As Figure 7 and Figure 8As shown, the partition plate 68 includes a horizontally arranged first connecting plate 681 and a partition block 682 fixedly connected to the lower surface of the first connecting plate 681. The cross-section of the partition block 682 is a right triangle, and one right side of the partition block 682 is fixed to the lower surface of the first connecting plate 681 and arranged along the width direction of the cardboard. When the first support frame 23 rotates to the state where the cardboard is erected, the first cylinder 67 extends to drive the moving plate 671 to slide under the fixed arm 64, and the partition plate 68 is located directly above the cardboard. Then the piston rod of the second cylinder extends, causing the partition plate 68 to move downward. When the partition block 682 touches the edge of the stacked cardboard, the cardboard will first contact the hypotenuse of the partition block 682, and the adjacent cardboard will be separated under the guidance of the hypotenuse of the partition block 682. Then the piston rod of the sixth cylinder 672 extends to insert the dial plate 69 into the gap between the cardboards. Through the retraction of the first cylinder 67, part of the cardboard is separated from the stacked cardboard and abuts against the supporting and guiding unit 3 for subsequent cardboard conveying. As the dial plate 69 separates, the stacked cardboard is getting farther and farther away from the dial plate 69. At this time, the staff can extend the working range of the first cylinder 67 by the telescoping of the third cylinder 66, or the staff can also move the three supporting arms 247 to make the stacked cardboard closer to the dial plate 69, thereby improving the feeding efficiency of the dial plate 69.

[0052] As Figure 9 and Figure 10 shown, the position adjustment assembly 65 includes a housing 651 installed on one side of the column 61. A first motor 652 is horizontally and fixedly connected to the outside of the housing 651. The output shaft of the first motor 652 penetrates into the housing 651. The output shaft of the first motor 652 is coaxially and fixedly connected to a first bevel gear 653. A first lead screw 654 is vertically arranged in the housing 651. The upper end of the first lead screw 654 penetrates out of the housing 651 and is rotatably connected to the column 61. The lower end of the first lead screw 654 is rotatably connected to the bottom of the housing 651. A second bevel gear 655 meshing with the first bevel gear 653 is coaxially and fixedly connected to the peripheral surface of the first lead screw 654. A first nut 656 is sleeved on the first lead screw 654. The first nut 656 is threadedly connected to the first lead screw 654. One side of the first nut 656 is fixedly connected to the outer side wall of the connecting sleeve 62.

[0053] As Figure 10 shown, there is the same gap between each inner wall of the connecting sleeve 62 and the corresponding inner wall of the column 61, and four first pulleys 657 are rotatably connected to each inner wall of the connecting sleeve 62. The rotation axis 71 of the connecting sleeve 62 and the first pulley 657 is horizontally arranged, and the outer peripheral surface of the first pulley 657 abuts against the outer side wall of the column 61. Through the setting of the first pulley 657, the friction force of the direct contact and sliding between the connecting sleeve 62 and the column 61 is reduced, and the smoothness of the sliding of the connecting sleeve 62 is improved.

[0054] When cardboard of different sizes is used, the working areas of the dialing plate 69 and the partition plate 68 may not be able to act on the cardboard. Therefore, it is necessary to drive the first lead screw 654 to rotate by the first motor 652. Through the threaded fit of the first lead screw 654 and the first nut 656, the first nut 656 slides along the direction of the column 61 under the limiting action of the connecting sleeve 62, so that the fixed arm 64 moves vertically, realizing the separation and dialing work of the dialing plate 69 and the partition plate 68 on cardboard of different sizes.

[0055] As Figure 6 shown, the secondary conveying unit 4 includes a frame 41 provided at the tail of the flipping unit 2. Four third conveyor belts 42 are arranged in the frame 41 along the cardboard conveying direction. The third conveyor belts 42 are arranged side by side, and there is a gap between adjacent third conveyor belts 42. And the above-mentioned supporting and guiding unit 3 is arranged at the connection between the secondary conveying unit 4 and the flipping unit 2. The supporting and guiding unit 3 includes two fifth conveyor belts 31 arranged side by side. The fifth conveyor belts 31 are connected end to end with the two middle third conveyor belts 42, and the fifth conveyor belts 31 are inclined, so that the end of the fifth conveyor belt 31 far from the third conveyor belt 42 is at the lowest point of the fifth conveyor belt 31.

[0056] When the dialing plate 67 dials a certain amount of cardboard away from the stacked cardboard, the flipped cardboard will rotate and contact the surface of the fifth conveyor belt 31. The cardboard is conveyed to the third conveyor belt 42 through the conveying of the fifth conveyor belt 31. Since the stacked cardboard on the supporting arm 247 is relatively high, it is not conducive to the long-distance movement of the cardboard. The staff divides the stacked cardboard into several groups through the dialing unit 6, thereby reducing the thickness of the cardboard conveyed each time, lowering the center of gravity during the cardboard conveying process, and improving the stability during the cardboard conveying process.

[0057] As Figure 11 shown, a rectifying component 7 for limiting and aligning the cardboard is further arranged on the frame 41. The rectifying component 7 includes a horizontally arranged rotating shaft 71. The rotating shaft 71 is arranged along the width direction of the frame 41. The two ends of the rotating shaft 71 are rotatably connected to the inner side walls of the frame 41. Four limiting baffles 72 are fixedly connected to the circumferential surface of the rotating shaft 71. The four limiting baffles 72 are arranged along the length direction of the rotating shaft 71. The four limiting baffles 72 are coplanar, and the four limiting baffles 72 are arranged at the gaps between adjacent third conveyor belts 42. A cylinder-link assembly 73 for driving the rotating shaft 71 to rotate is arranged on the outer side wall of the frame 41.

[0058] As Figure 11As shown, one end of the rotating shaft 71 extends out of the frame 41. The cylinder connecting rod assembly 73 includes a driving plate 731 arranged outside the frame 41 and a fifth cylinder 732. The driving plate 731 is fixedly connected to the circumferential surface of the rotating shaft 71. The cylinder body of the fifth cylinder 732 is rotatably connected to the outer side wall of the frame 41, and the end of the piston rod of the fifth cylinder 732 is hinged to the driving plate 731. The rotating shaft 71 of the fifth cylinder 732 and the frame 41 and the hinge shaft of the piston rod of the fifth cylinder 732 and the driving plate 731 are parallel to each other and are also parallel to the rotating shaft 71 at the same time. When the stacked cardboard is conveyed on the third conveyor belt 42, the piston rod of the fifth cylinder 732 extends out, driving the rotating shaft 71 to rotate through the driving plate 731, so that the limiting baffle 72 protrudes vertically from the upper surface of the third conveyor belt 42. When the stacked cardboard contacts one side of the limiting baffle 72, the loose cardboard becomes neater under the rectification of the limiting baffle 72.

[0059] As Figure 11 shown, the stacking and evacuation unit 5 includes a fourth frame body 51 arranged at the tail of the secondary conveying unit 4. Four fourth conveyor belts 52 are horizontally arranged above the fourth frame body 51. The ends of the four fourth conveyor belts 52 facing the frame 41 are rotatably connected to the fourth frame body 51. Two mutually parallel third hydraulic cylinders 53 are arranged inside the fourth frame body 51. The cylinder bodies of the third hydraulic cylinders 53 are hinged to the inner wall of the fourth frame body 51, and the ends of the piston rods of the third hydraulic cylinders 53 are hinged under the fourth conveyor belts 52. Thus, by the telescopic movement of the pistons of the third hydraulic cylinders 53, the rotation of the third hydraulic cylinders 53 is adjusted to adapt to the cardboard conveying in different situations. An inverted U-shaped frame 54 with an opening downward is erected above the fourth frame body 51. A space for placing the cardboard is left between the inverted U-shaped frame 54 and the tail of the third conveyor belt 42. A limiting plate 55 is vertically arranged on one side of the inverted U-shaped frame 54 facing the frame 41. The limiting plate 55 is perpendicular to the cardboard conveying direction. A displacement assembly 56 for driving the limiting plate 55 to displace in three directions is also arranged on the inverted U-shaped frame 54.

[0060] As Figure 12 and Figure 13As shown in the figure, the displacement component 56 includes a fixed block 561 fixed on the upper surface of the U-shaped frame 54. The fixed block 561 is rectangular and arranged along the length direction of the U-shaped frame 54. An installation groove 5611 is vertically opened on the upper surface of the fixed block 561. A second lead screw 562 is horizontally inserted through the fixed block 561 along the conveying direction of the cardboard. The second lead screw 562 is slidably connected to the fixed block 561. The second lead screw penetrates into the installation groove 5611. A second nut 563 that is threadedly engaged with the second lead screw 562 is arranged in the installation groove 5611. A slide bar 564 is arranged on each side of the second lead screw 562. The two slide bars 564 are parallel to the second lead screw. And the two slide bars 564 penetrate through the fixed block 561 and are slidably connected to the fixed block 561. One end of the second lead screw 562 and the two slide bars 564 facing the limiting plate 55 are simultaneously fixedly connected with a horizontally arranged first slideway 565. The first slideway 565 is connected to the back side of the limiting plate 55. A second motor 566 is horizontally fixedly connected to the upper surface of the fixed block 561. The output shaft of the second motor 566 is parallel to the length direction of the second lead screw. A fifth sprocket 567 is coaxially fixedly connected to the output shaft of the second motor 566. The fifth sprocket 567 is located directly above the installation groove 5611. An annular rack 568 is coaxially fixedly connected to the circumferential surface of the second nut 563 described above. And a third chain 569 is simultaneously sleeved on the fifth sprocket 567 and the annular rack 568.

[0061] When the staff needs to control the limiting plate 55 to move towards the third conveyor belt 42, the second motor 566 drives the second nut 563 to rotate through the third chain 569. Through the threaded engagement between the second nut 563 and the second lead screw 562, the first slideway 565 slides along the length direction of the second lead screw 562 under the limitation of the two slide bars 564, thereby driving the movement of the limiting plate 55. As the cardboard falls from the tail of the third conveyor belt 42 onto the fourth conveyor belt 52, the cardboard will abut against one side of the limiting plate 55, which helps to make the stacking of the cardboard neat.

[0062] As Figure 11 and Figure 13As shown in the figure, a first slider 81 is slidably connected in a first slideway 565. A first screw rod 82 is arranged in the first slideway 565 along the length direction of the first slideway 565. The first screw rod 82 is rotatably connected to the opposite inner walls of the first slideway 565. The first screw rod 82 penetrates through the first slider 81 and is threadedly connected to the first slider 81. One end of the first screw rod 82 passes through the side wall of the first slideway 565 and a hand wheel 83 is fixedly connected to the end of the first screw rod 82. A second slideway 84 is vertically and fixedly connected to the side of the first slider 81 facing the limiting plate 55. A second slider 85 is slidably connected in the second slideway 84. The second slider 85 is fixedly connected to the back side of the limiting plate 55. A second screw rod 86 is vertically arranged in the second slideway 84. The second screw rod 86 is rotatably connected to the opposite inner walls of the second slideway 84. The second screw rod 86 penetrates through the second slider 85 and is threadedly connected to the second slider 85. And a servo motor 87 is fixedly connected to the upper end of the second slider 85. The staff can respectively control the rotation of the hand wheel 83 and the operation of the servo motor 87 to drive the horizontal and vertical positions of the limiting plate 55, so as to adjust the specific position of the limiting plate 55 according to the size of the conveyed cardboard.

[0063] When the cardboard is arranged on the fourth conveyor belt 52, one side of the cardboard abuts against the limiting plate 55. The staff drives the vertical position of the limiting plate 55 by starting the servo motor 87, so as to adjust the interval between the limiting plate 55 and the upper surface of the fourth conveyor belt 52. When the fourth conveyor belt 52 starts, it will drive the cardboard to be conveyed from the gap between the limiting plate 55 and the fourth conveyor belt 52 to the rear side of the fourth conveyor belt 52, and make the cardboard arranged in a fish-scale shape on the fourth conveyor belt 52.

[0064] As Figure 11As shown in the figure, a neatening component 9 is provided on each side of the fourth frame body 51. The neatening component 9 includes an extension arm 91 horizontally and fixedly connected to the outer side wall of the fourth frame body 51. The extension arm 91 is in the shape of a cuboid. A sliding groove 911 is formed in the upper surface of the extension arm 91 along the length direction of the extension arm 91. A third slider 92 is slidably connected in the sliding groove 911 along the length direction of the sliding groove 911. A third screw rod 94 is arranged in the sliding groove 911 along the length direction of the extension arm 91. Both ends of the third screw rod 94 are rotatably connected to the inner wall of the sliding groove 911. The third screw rod 94 penetrates through the third slider 92 and is threadedly connected to the third slider 92. A third motor 95 is fixedly connected to the side wall of the extension arm 91 away from the fourth frame body 51. The output shaft of the third motor 95 penetrates into the extension arm 91 and is coaxially and fixedly connected to the third screw rod 94. An L-shaped fifth frame body 96 is fixedly connected to the upper surface of the third slider 92. An eighth air cylinder 97 is fixedly connected to one side of the fifth frame body 96. A vertically arranged clamping plate 98 is fixedly connected to the piston rod of the eighth air cylinder 97. The clamping plate 98 is parallel to the side wall of the frame 41. When the cardboard is stacked on the fourth conveyor belt 52 in sequence, the telescopic movement of the piston rods of the two eighth air cylinders 97 can drive the two clamping plates 98 to clamp against both sides of the cardboard, making the stacked cardboard neater, so as to facilitate the subsequent conveying of the cardboard on the fourth conveyor belt 52. When conveying cardboard of different sizes, the staff can drive the third screw rod 94 to rotate through the third motor 95, so that the third slider 92 slides along the length direction of the sliding groove 911 under the limitation of the chute 911246, thereby adjusting the movement of the fifth frame body 96, so that the clamping plate 98 can act on both sides of the cardboard.

[0065] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An automatic feeding machine, characterized in that: It includes a primary conveying unit (1) arranged on the ground, a turning unit (2) arranged at the tail of the primary conveying unit (1), a secondary conveying unit (4) arranged on one side of the turning unit (2), and a stacking evacuation unit (5) arranged at the tail of the secondary conveying unit (4) for evacuating stacked cardboard; a material pushing unit (6) for peeling the materials of the turning unit (2) is arranged on one side of the turning unit (2); The secondary conveying unit (4) includes a frame (41) arranged at the tail of the turning unit (2), and a plurality of third conveyor belts (42) are arranged side by side in the frame (41) along the cardboard conveying direction, and the third conveyor belts (42) are arranged at intervals; A rotating shaft (71) is horizontally arranged between the frames (41), and a plurality of limiting baffles (72) are fixedly connected to the peripheral surface of the rotating shaft (71) along the length direction of the rotating shaft (71). The limiting baffles (72) are coplanar and are located between adjacent third conveyor belts (42). One end of the rotating shaft (71) is provided with a cylinder connecting rod assembly (73) for driving the rotation of the rotating shaft (71); The stacking evacuation unit (5) includes a fourth frame body (51) arranged at the tail of the secondary conveying unit (4), and a plurality of fourth conveyor belts (52) are arranged side by side on the fourth frame body (51) along the cardboard conveying direction. A limiting plate (55) is vertically arranged at the tail of the fourth frame body (51) facing away from the secondary conveying unit (4). The limiting plate (55) is slidably connected to the fourth frame body (51) in the vertical direction, and a gap is left between the lower edge of the limiting plate (55) and the upper surface of the fourth conveyor belt (52); The turning unit (2) includes a first support frame (23), a supporting lifting assembly (24) is arranged on the first support frame (23), a second support frame (22) is rotatably connected to both sides of the first support frame (23), a third support frame (21) fixed on the ground is rotatably connected to both sides of the second support frame (22). The rotating shafts (71) of the first support frame (23) and the second support frame (22) are parallel to the rotating shafts (71) of the second support frame (22) and the third support frame (21). A plurality of first hydraulic cylinders (25) for rotating and lifting the second support frame (22) are arranged in the third support frame (21), and a plurality of second hydraulic cylinders (26) for further lifting the first support frame (23) are arranged on the second support frame (22); The material pushing unit (6) includes a column (61) erected on one side of the third support frame (21), a fixed arm (64) horizontally arranged at the end of the column (61), a first cylinder (67) is horizontally arranged below the fixed arm (64) along the cardboard conveying direction. The end of the piston rod of the first cylinder (67) is fixedly connected with a moving plate (671) slidably connected to the fixed arm (64). A second cylinder is fixedly connected to one side of the moving plate (671), and the piston rod of the second cylinder extends and retracts in the vertical direction. The end of the piston rod of the second cylinder is fixedly connected with a pushing plate (69) inserted between adjacent cardboard; The supporting lifting assembly (24) includes a first driving roller (241) horizontally arranged on the first support frame (23). A plurality of first sprockets (243) are sleeved on the first driving roller (241). A plurality of second sprockets (242) corresponding to the first sprockets (243) in number and position are arranged at the tail of the first support frame (23). The second sprockets (242) are rotatably connected to the first support frame (23). A first chain (244) is sleeved on each of the corresponding first sprockets (243) and second sprockets (242). A supporting arm (247) for supporting cardboard is fixedly connected to one side of each first chain (244) facing the primary conveying unit (1). The supporting surfaces of all the supporting arms (247) are located in the same plane. A driving assembly (27) for driving the first driving roller (241) to rotate is further arranged on the first support frame (23).

2. The automatic feeding machine according to claim 1, characterized in that; The driving assembly (27) includes a driving motor (271) fixedly connected to the back side of the first support frame (23). A driving sprocket (272) is fixedly connected to the output shaft of the driving motor (271). A driven sprocket (273) is sleeved on the first driving roller (241). A second chain (274) is sleeved on the driving sprocket (272) and the driven sprocket (273) together.

3. The automatic feeding machine according to claim 1, characterized in that: The air cylinder connecting rod assembly (73) includes a driving plate (731) fixedly connected to the end of the rotating shaft and a fifth air cylinder (732) arranged on the outer side wall of the frame (41). The fifth air cylinder (732) is hinged to the outer side wall of the frame (41). The end of the piston rod of the fifth air cylinder (732) is hinged to the driving plate (731).

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