Flour bag stacking device for flour production

Abstract

The invention relates to the technical field of agricultural product stacking, in particular to a flour bag stacking device for flour production, which comprises two symmetrically arranged conveying modules, each conveying module comprises a main frame, a plurality of rotating plates are equidistantly arranged on the upper surface of the main frame, and a plurality of upper guide wheel groups are also equidistantly arranged on the upper surface of the main frame; according to the flour bag correcting and positioning device, the driving motor drives the conveying belt to convey flour bags, the driving rod drives the driving toothed plate to be meshed with the gear set to enable the second guide wheel to be staggered, and flour bag correcting and positioning are completed; a hydraulic rod and a sliding rod support a rotating plate, an elastic telescopic rod adapts to deformation of a conveying belt, a hydraulic cylinder pushes a conveying module to turn over around a rotating shaft vertically to form a height difference, finally the rotating plate is pulled out through the cooperation of a frame, the flour bags are stacked in a staggered mode, and all the parts are reset reversely to complete circulation.

Description

Technical Field

[0001] This invention relates to the field of agricultural product stacking technology, specifically to a flour bag stacking device for flour production. Background Technology

[0002] In the flour production and processing industry, the stacking of finished flour bags is mostly done manually or with traditional mechanical palletizing equipment. Manual stacking relies on workers to move the flour bags one by one from the end of the conveyor line to the pallet and stack them layer by layer according to the preset arrangement. Traditional mechanical palletizing equipment uses a gripping robot, a transfer conveyor belt and a lifting pallet to place the flour bags layer by layer on the pallet through positioning, gripping, transfer and stacking processes, thus completing the batch stacking of flour bags.

[0003] However, existing technologies for manual stacking suffer from drawbacks such as high labor intensity, low work efficiency, and poor stacking consistency. Traditional mechanical stacking equipment is characterized by complex structure, large footprint, and high purchase and maintenance costs. Furthermore, it cannot complete the posture correction and precise positioning of flour bags during the conveying process. Flour bags are prone to slipping and shifting during stacking, making it difficult to achieve synchronous stacking of multiple bags. The stacked structure after stacking has poor stability and is prone to collapse. It cannot achieve integrated operation of conveying, correction, and stacking, and is difficult to adapt to the continuous and efficient operation requirements of flour production. Summary of the Invention

[0004] The purpose of this invention is to provide a flour bag stacking device for flour production, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flour bag stacking device for flour production, comprising two symmetrically placed conveying modules. Each conveying module includes a main frame, and a plurality of rotating plates are equidistantly arranged on the upper surface of the main frame. A plurality of upper guide wheel groups are also equidistantly arranged on the upper surface of the main frame, and each upper guide wheel group is adjacent to a rotating plate. A plurality of lower guide wheel groups corresponding to the positions of the upper guide wheel groups are arranged on the lower side of the main frame. A conveyor belt is sleeved between the upper guide wheel groups and the lower guide wheel groups, and the conveyor belt is attached to the upper surface of the rotating plates. Each of the rotating plates is rotatably connected to a shaft plate at one end away from the corresponding guide wheel assembly. The lower end of the shaft plate is fixed to a cooperating frame, and the cooperating frame can move up and down. On the upper surface of the main frame, a sliding long plate is slidably connected to one side near each rotating plate. Each sliding long plate and its corresponding rotating plate are provided with an inclined push structure, which can push the rotating plate to a state perpendicular to the main frame. Both ends of each sliding long plate are fixedly connected to an active rod. Several connecting seats are fixedly connected to the outer wall of the active rod. The lower end of each connecting seat is rotatably connected to an inclined elastic telescopic rod with a corresponding lower guide wheel group.

[0006] Preferably, the upper guide wheel assembly includes two guide wheels 2, and a guide wheel 3 is provided between the two guide wheels 2. Each end of the guide wheel 2 is provided with a misaligned structure, which can drive the two guide wheels 2 to move up and down in a misaligned manner. Each of the conveying modules is provided with a lifting structure at its lower end, which can change the conveying module from horizontal to vertical placement.

[0007] Preferably, the lower guide wheel assembly includes two guide wheels, the outer side walls of the two guide wheels are in contact with the conveyor belt, and both ends of the two guide wheels are rotatably connected to a guide wheel positioning seat. The upper surface of the guide wheel positioning seat is rotatably connected to the lower end of the elastic telescopic rod. The upper surface of the guide wheel positioning seat is fixed with two symmetrically positioned positioning columns, and the outer side walls of the positioning columns are slidably connected to the main frame.

[0008] Preferably, the inclined push structure includes two liquid rods, which are symmetrically rotatably connected to the upper surface of the sliding plate. Each liquid rod has a sliding rod slidably connected to its end away from the sliding plate. Each rotating plate has two sliding grooves on its lower surface that are opposite to the sliding rods. A transverse sliding cylinder is fixedly connected to the end of the sliding rod away from the liquid rod. A limiting rod is slidably connected to both sides of the transverse sliding cylinder, and the limiting rod is slidably inserted into the cavity on both sides of the sliding groove.

[0009] Preferably, the misalignment structure includes a longitudinal slider, which is rotatably connected to both ends of each guide wheel. A longitudinal sliding frame is provided on the side of the outer wall of the main frame near the longitudinal slider, and the cavity of the longitudinal sliding frame is slidably connected to the longitudinal slider. A toothed rod is fixedly connected to the side of the two longitudinal sliders that are close to each other, and a main gear meshes between the two toothed rods. A torsion spring shaft is fixedly connected between the main gear and the main frame. A secondary gear is fixedly connected to the side of the main gear away from the main frame. A drive toothed plate is provided on the lower side of each secondary gear and is fixedly connected to the drive rod. The drive toothed plate can mesh with the secondary gear when it moves away from the shaft plate.

[0010] Preferably, two symmetrically positioned equipment housings are screwed to the outer side wall of the main frame. The lower ends of the two equipment housings are fixedly connected to a base plate. Two outer guide wheels are rotatably connected between the two equipment housings, and the outer side walls of the two outer guide wheels abut against the conveyor belt. A drive motor is fixedly connected to the outer side wall of the equipment housing, and the output end of the drive motor is fixedly connected to the outer guide wheels. Two symmetrically positioned side guide wheels are rotatably connected to both ends of the main frame, and the side guide wheels abut against the outer side walls of the conveyor belt.

[0011] Preferably, an electric actuator is fixedly connected to the outer wall of the device housing, and a connector is fixedly connected between the output end of the electric actuator and the corresponding cooperating frame. An electric actuator is also fixedly connected to the outer wall of the device housing, and a connector is fixedly connected between the output end of the electric actuator and the driving rod.

[0012] Preferably, the lifting structure includes an equipment support frame, which is disposed on the lower side of the conveying module and does not contact the bottom plate inside the cavity of the equipment support frame. A hydraulic cylinder is rotatably connected between the equipment support frame and the bottom plate. Two symmetrically positioned rotating shafts are fixedly connected to the inner wall of the upper end of the equipment support frame, and the end of each rotating shaft away from the inner wall of the equipment support frame is fixedly connected to the outer shell of the equipment.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This device uses an active rod to drive the main gear and auxiliary gear to rotate and raise the guide wheel 2, causing a local concavity in the conveyor belt to create resistance to the movement of the passing flour bags. This achieves precise posture correction and initial positioning of the material. Simultaneously, by utilizing the tilting of the internal water-filled hydraulic rod and sliding rod, and in conjunction with the hydraulic clamping mechanism of the transverse sliding cylinder and limit rod, the rotating plate and flour bags are stably and safely supported to a vertical state while preventing derailment. Combined with the elastic telescopic rod raising the lower guide wheel assembly, the folding allowance of the conveyor belt is dynamically released. Furthermore, a hydraulic cylinder drives two conveying modules to rotate around an asymmetrical rotating axis to a vertical state. By cleverly relying on the offset distance difference of the two rotating axes, the conveying modules create a height difference of half the length of the rotating plate when they close. Finally, with the help of the cooperating frame, the rotating plate is pulled outward, allowing the flour bags on both sides to fall and be stably stacked in a vertically interlaced manner under the action of gravity. This not only effectively overcomes the technical defects of traditional unidirectional stacking, which is prone to tilting and collapse, but also significantly improves the overall structural rigidity and operational efficiency of three-dimensional interlaced stacking through the three-dimensional spatial linkage of multiple mechanisms. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the device housing of the present invention; Figure 3 This is a schematic diagram of the internal structure of the conveying module after removing one of the device shells according to the present invention; Figure 4 This is an enlarged view of point A in Figure 3 of the present invention; Figure 5 This is an enlarged view of point B in Figure 3 of the present invention; Figure 6 This is a partial cross-sectional view of the conveying module of the present invention; Figure 7This is an enlarged view of point C in Figure 6 of the present invention; Figure 8 This is a schematic diagram of the structure of the liquid rod of the present invention; Figure 9 This is a schematic diagram of the bottom structure of the rotating plate of the present invention; Figure 10 This is a cross-sectional view of the rotating plate of the present invention; Figure 11 This is a schematic diagram of the equipment support frame structure of the present invention; Figure 12 This is a cross-sectional view of the torsion spring shaft of the present invention.

[0015] Explanation of reference numerals in the attached figures: 1. Conveying module; 2. Upper guide wheel assembly; 3. Lower guide wheel assembly; 4. Main frame; 5. Turning plate; 6. Shaft plate; 7. Cooperative frame; 8. Conveyor belt; 9. Sliding long plate; 10. Hydraulic rod; 11. Slide rod; 12. Transverse slide cylinder; 13. Limiting rod; 14. Sliding groove; 15. Driving rod; 16. Connecting seat; 17. Elastic telescopic rod; 18. Guide wheel positioning seat; 19. Guide wheel one; 191. Outer guide wheel; 20. Guide wheel two; 21. 1. Guide wheel 3; 22. Longitudinal slider; 23. Gear rack; 24. Main gear; 25. Secondary gear; 26. Positioning column; 27. Longitudinal slide frame; 28. Equipment housing; 29. ​​Drive motor; 30. Electric actuator 1; 31. Connector 1; 32. Electric actuator 2; 33. Connector 2; 34. Base plate; 35. Equipment support frame; 36. Hydraulic cylinder; 37. Rotating shaft; 38. Side guide wheel; 39. Torsion spring shaft; 40. Active gear plate. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-12 The present invention provides a technical solution: a flour bag stacking device for flour production, comprising two symmetrically placed conveying modules 1, each conveying module 1 comprising a main frame 4, wherein a plurality of rotating plates 5 are equidistantly arranged on the upper surface of the main frame 4, and a plurality of upper guide wheel groups 2 are also equidistantly arranged on the upper surface of the main frame 4, and each upper guide wheel group 2 is adjacent to a rotating plate 5. A plurality of lower guide wheel groups 3 corresponding to the positions of the upper guide wheel groups 2 are arranged on the lower side of the main frame 4, and a conveyor belt 8 is sleeved between the upper guide wheel groups 2 and the lower guide wheel groups 3, and the conveyor belt 8 is attached to the upper surface of the rotating plate 5. Each rotating plate 5 is rotatably connected to a shaft plate 6 at one end away from the corresponding guide wheel assembly 2. The lower end of the shaft plate 6 is fixed to a cooperating frame 7, and the cooperating frame 7 can move up and down. On the upper surface of the main frame 4, a sliding long plate 9 is slidably connected to one side of each rotating plate 5. An oblique push structure is provided between each sliding long plate 9 and the corresponding rotating plate 5, which can push the rotating plate 5 to a state perpendicular to the main frame 4. Both ends of each sliding long plate 9 are fixedly connected to an active rod 15. Several connecting seats 16 are fixedly connected to the outer wall of the active rod 15. The lower end of each connecting seat 16 is rotatably connected to an inclined elastic telescopic rod 17 with the lower guide wheel group 3 at the corresponding position.

[0018] Specifically, when the two conveyor modules 1 are placed horizontally, there is a gap of two to five centimeters between them. During use, the conveyor belts 8 on both conveyor modules 1 transmit in a single direction. (Refer to...) Figure 1 When workers move the bagged flour from the truck onto the upper surface of the left conveyor belt 8, the bagged flour on the conveyor belt 8 will be smoothly transported from left to right. At the same time, baffles are set on both sides of the input end of the left conveyor module 1 to help workers accurately place the bagged flour on the upper end of the conveyor belt 8, preventing the bagged flour from deviating from the upper surface of the conveyor belt 8 after being placed. The end of the right conveyor module 1 is also equipped with a limit plate to prevent the bagged flour from accidentally falling after moving to the end, which plays a safety protection role. The active rod 15 can perform horizontal lateral movement. When the active rods 15 on the two conveyor modules 1 move in opposite directions, they will drive the sliding plate 9 to move in the opposite direction of the shaft plate 6, thereby driving the inclined push structure to smoothly support the rotating plate 5, so that the rotating plate 5 rotates around the position of the shaft plate 6 until the rotating plate 5 is perpendicular to the main frame 4. At the same time, the elastic telescopic rod 17 is composed of a spring and a telescopic rod, which can ensure that the upper guide wheel group 2 and the lower guide wheel group The outer surface of the conveyor belt 8 is always taut to prevent transmission slippage. When the active rods 15 on the two conveyor modules 1 move away from each other, the distance between the connecting seat 16 and the lower guide wheel group 3 increases, causing the elastic telescopic rod 17 to tilt and move in a horizontal position. Since the elastic telescopic rod 17 is close to its maximum stretch length in the normal state, it will not undergo a large length change when the elastic telescopic rod 17 is pulled by the active rod 15. Simultaneously, it will pull the lower guide wheel group 3 upward, thereby effectively releasing the conveyor belt 8 on the surface of the lower guide wheel group 3 and the upper guide wheel group 2, so that the rotation of the turntable 5 can have sufficient deformation space. At this time, the tension of the conveyor belt 8 on the upper surface of the main frame 4 will also change during the rotation of the turntable 5. When the turntable 5 is in a vertical position, the conveyor belt 8 between the two adjacent upper guide wheel groups 2 will be pushed into an approximately right-angled triangle shape with the contact surface with the main frame 4, thereby effectively adapting to the folding requirements of the mechanism.

[0019] In this embodiment, the upper guide wheel group 2 includes two guide wheels 20, and a guide wheel 3 21 is provided between the two guide wheels 20. Both ends of the guide wheels 20 are provided with a misalignment structure, which can drive the two guide wheels 20 to move up and down in a misaligned manner. Each conveying module 1 has a lifting structure at its lower end, which can change the conveying module 1 from a horizontal position to a vertical position.

[0020] In this embodiment, the lower guide wheel assembly 3 includes two guide wheels 19. The outer sidewalls of the two guide wheels 19 are in contact with the conveyor belt 8. Both ends of the two guide wheels 19 are rotatably connected to a guide wheel positioning seat 18. The upper surface of the guide wheel positioning seat 18 is rotatably connected to the lower end of the elastic telescopic rod 17. Two symmetrically positioned positioning posts 26 are fixedly attached to the upper surface of the guide wheel positioning seat 18. The outer sidewalls of the positioning posts 26 are slidably connected to the main frame 4.

[0021] For details, please refer to Figure 7 Among them, guide roller 19, guide roller 20, and guide roller 321 form an inverted "W" shape, which greatly improves the folding and storage efficiency of the conveyor belt 8 in a confined space, making the overall equipment more compact. In Example 2, when guide wheel 19 is damaged, guide wheel 3 21 can be moved down and directly connected to guide wheel positioning seat 18. The contact surface between the conveyor belt 8 and guide wheel 3 21 is changed to be in contact from the lower end of guide wheel 3 21, so that the conveyor belt 8 forms a "V" shape between the two guide wheels 20. This is used as an emergency solution to ensure the tension of the conveyor belt 8. The corresponding elastic telescopic rod 17 needs to be replaced with an electric telescopic rod that can be controlled by the system to ensure that the guide wheel positioning seat 18 has stable and reliable power during the upward movement.

[0022] In this embodiment, the inclined push structure includes two liquid rods 10, which are symmetrically rotatably connected to the upper surface of the sliding plate 9. Each liquid rod 10 has a sliding rod 11 slidably connected to the end away from the sliding plate 9. Each rotating plate 5 has two sliding grooves 14 on its lower surface that are opposite to the sliding rods 11. A transverse sliding cylinder 12 is fixedly connected to the end of the sliding rod 11 away from the liquid rod 10. A limiting rod 13 is slidably connected to both sides of the transverse sliding cylinder 12, and the limiting rod 13 is slidably inserted into the cavity on both sides of the sliding groove 14.

[0023] Specifically, the hydraulic rod 10, the sliding rod 11, and the transverse sliding cylinder 12 are connected and filled with a hydraulic medium. (Refer to...) Figure 9During the process of the sliding plate 9 being pushed towards the shaft plate 6 by the active rod 15, the transverse sliding cylinder 12 and the limiting rod 13 are stuck at the end of the sliding groove 14 cavity and cannot move further towards the shaft plate 6. Therefore, the liquid rod 10 and the sliding rod 11 will start to tilt and support the rotating plate 5, so that the rotating plate 5 rotates around the shaft plate 6 and supports the conveyor belt 8 as well. During the support process, the bagged flour above the conveyor belt 8 will also be lifted together. At this time, the lifting structure will also operate together and lift the main frame 4 as a whole into a vertical state. During this coordinated movement, the flour above the conveyor belt 8 will cleverly remain in a horizontal state to prevent the material from slipping. During the process of the hydraulic rod 10 and the sliding rod 11 pushing the rotating plate 5, the water pressure inside the hydraulic rod 10 and the sliding rod 11 increases, thereby pushing the limiting rods 13 on both sides of the transverse sliding cylinder 12 to extend outward and closely contact the inner wall of the sliding groove 14. This effectively prevents the components from derailing and sliding inside the sliding groove 14 during the process of the hydraulic rod 10 and the sliding rod 11 pushing the rotating plate 5, ensuring the rigidity and safety of the pushing process. Then, after the rotating plate 5 is in a vertical state, that is, when the rotating plate 5 and the shaft plate 6 are in a horizontal line, the cooperating frame 7 will pull the shaft plate 6 to move away from the main frame 4. At the same time, the rotating plate 5 will also be forcibly pulled out, smoothly withdrawing from the moving track of the shaft plate 6. During the process of withdrawing the rotating plate 5, the driving rod 15 will enter... During the reverse movement of the drive lever 15, the lower guide wheel assembly 3 is reset, causing the released conveyor belt 8 to regain tension. Simultaneously, the reverse movement of the drive lever 15 causes the hydraulic rod 10 and slide rod 11 to undergo a pulling and stretching motion, extending their combined length to a position perpendicular to the rotating plate 5. During the pulling of the rotating plate 5, the external mechanical force stretches the hydraulic rod 10 and slide rod 11, reducing the internal water pressure of the transverse slide cylinder 12. This negative pressure then draws the limiting rod 13 back into the transverse slide cylinder 12, preventing it from forcibly resisting the inner wall of the sliding groove 14. The transverse slide cylinder 12 and the limiting rod 13 can then... The rotating plate 5 slides smoothly within the chamber of the sliding groove 14 until it reaches the end of the chamber furthest from the shaft plate 6. At this point, the rotating plate 5 no longer makes physical contact with the conveyor belt 8, and the liquid rod 10 is in a folded and stored state parallel to the main frame 4. Simultaneously, the conveying module 1 is now completely vertical. Therefore, when the rotating plate 5 is removed, the bagged flour above each rotating plate 5, having lost its support, will fall smoothly and synchronously from top to bottom. However, when both conveying modules 1 are vertical, and because the preset height difference between the two conveying modules 1 is exactly half the length of a single rotating plate 5, when the two conveying modules 1 come together, each bag of flour on the conveying module 1 will form a staggered vertical arrangement in space. When one bag of flour comes into contact with the conveyor belt 8 on another conveyor module 1, the conveyor belt 8 on the other conveyor module 1 has already been pushed into an approximately right-angled triangle state by the rotating plate 5, with the hypotenuse of the triangle facing away from the main frame 4. Therefore, when the bag of flour on each conveyor module 1 comes into contact with the conveyor belt 8 on the other conveyor module 1, the flexible tension and inclined surface resistance generated when the conveyor belt 8 is collected by the lower guide wheel group 3 will center and correct the flour bag's posture. Then, by placing a receiving trolley at the bottom between the two conveyor modules 1, and then when the rotating plates 5 on the two conveyor modules 1 are simultaneously pulled outward by the cooperating frame 7, the bag of flour on the two conveyor modules 1 will fall vertically due to gravity.Furthermore, due to the aforementioned height difference design, the bagged flour on the two conveying modules 1 will descend in a vertically interlaced manner. After the turntable 5 is fully extended, the bagged flour will fall compactly onto the trolley and be instantly stacked in an interlaced manner, significantly improving the overall structural strength of the stacking and effectively preventing collapse. Afterwards, the staff can quickly transfer the trolley and the stacked bagged flour. The turntable 5 will be pushed back to its original position by the cooperating frame 7 and moved away from the equipment support frame 35. During the resetting process of the turntable 5, the active rod 15 will also push the sliding plate 9 towards the shaft plate 6 again. During the movement, the transverse slide cylinder 12 will be... The sliding frame 7 is pushed to the starting position of the sliding groove 14 chamber closest to the shaft plate 6 until it is completely in contact with the side of the main frame 4 away from the sliding plate 9. At this time, the driving rod 15 starts to push the sliding plate 9 to reset, moving it away from the shaft plate 6. Then, during the reset process of the sliding plate 9, the traction force generated by the hydraulic rod 10 and the sliding rod 11 on the rotating plate 5, as well as the natural descent of the rotating plate 5 under its own weight, will make the rotating plate 5 once again be in a parallel and contacted state with the main frame 4. Finally, the lifting structure will rotate and reset the entire conveying module 1, so that the conveying module 1 is once again in a horizontal position that is convenient for feeding.

[0024] In this embodiment, the misalignment structure includes a longitudinal slider 22, which is rotatably connected to both ends of each guide wheel 20. A longitudinal sliding frame 27 is provided on the side of the outer wall of the main frame 4 near the longitudinal slider 22, and the cavity of the longitudinal sliding frame 27 is slidably connected to the longitudinal slider 22. A toothed rod 23 is fixedly connected to the side of the two longitudinal sliders 22 that are close to each other. A main gear 24 is meshed between the two toothed rods 23. A torsion spring shaft 39 is fixedly connected between the main gear 24 and the main frame 4. A secondary gear 25 is fixedly connected to the side of the main gear 24 away from the main frame 4. A drive toothed plate 40 is provided on the lower side of each secondary gear 25 and is fixedly connected to the drive rod 15. The drive toothed plate 40 can mesh with the secondary gear 25 when it moves away from the shaft plate 6.

[0025] Specifically, during the process of conveying bagged flour in a horizontal position in the conveying module 1, the drive rod 15 can push the drive toothed plate 40 to move away from the shaft plate 6. At this time, the sliding plate 9 is still in its initial position and begins to push the rotating plate 5 to rotate upward. Therefore, as the drive rod 15 continues to push, the sliding plate 9 will also move away from the shaft plate 6. During the movement of the sliding plate 9, it will pull the oblique push structure. At this time, the mechanical resistance required for the oblique push structure to be stretched and moved is greater than the turning force required for the rotating plate 5 to rotate around the shaft plate 6. Therefore, during the movement of the sliding plate 9 away from the shaft plate 6, it will pull the rotating plate 5 to rotate slightly downward, causing the rotating plate 5 to sink and move into the internal space of the main frame 4. Then, as the drive toothed plate 40 continues to move, it will begin to make physical contact with the secondary gear 25. Figure 4 As the active gear plate 40 moves to the right, it drives the secondary gear 25 and the main gear 24 to rotate counterclockwise. During the counterclockwise rotation of the main gear 24, the position of the gear bar 23 meshing with it on the right is forcibly raised. At the same time, the longitudinal slider 22 and the guide wheel 20 on the right are also raised synchronously. Correspondingly, the position of the longitudinal slider 22 and the guide wheel 20 on the left is lowered due to gear transmission. Therefore, at this time, the rotating plate 5, the two guide wheels 20 and the guide wheel 3 21 at the current position will form an obvious inverted obtuse angle concave structure on the conveyor surface. When the bagged flour passes through this concave position, it will be subject to a certain movement resistance caused by the deformation of the conveyor belt structure. Thus, when the bagged flour needs to pass the position of the protruding guide wheel 20 on the right, it will be fully contacted and strongly resisted by the guide wheel 20 on the right to obtain sufficient transmission friction. Therefore, this ingenious deformation and misalignment structure plays an extremely effective role in the initial limiting, anti-slip positioning and posture correction of the moving bagged flour. In the second embodiment, the height misalignment of the two guide rollers 20 can also be achieved by modifying the structure of the two longitudinal sliders 22 and installing a dedicated electric lifting device. The device can be precisely controlled by the central control system to accurately change the absolute height of the lifting. This allows the device to intelligently make one of the guide rollers 20 bulge when encountering bagged flour of different thicknesses or weights, so as to generate sufficient matching moving resistance to the flour bag and assist in the smooth correction and alignment of bagged flour of various specifications.

[0026] In this embodiment, two symmetrically positioned equipment housings 28 are screwed to the outer side wall of the main frame 4. The lower ends of the two equipment housings 28 are fixedly connected to a base plate 34. Two outer guide wheels 191 are rotatably connected between the two equipment housings 28, and the outer side walls of the two outer guide wheels 191 abut against the conveyor belt 8. A drive motor 29 is fixedly connected to the outer side wall of the equipment housing 28, and the output end of the drive motor 29 is fixedly connected to the outer guide wheels 191. Two symmetrically positioned side guide wheels 38 are rotatably connected to both ends of the main frame 4, and the side guide wheels 38 abut against the outer side wall of the conveyor belt 8.

[0027] Specifically, the drive motor 29 is used to provide stable power to drive the outer guide wheel 191 to rotate continuously. At the same time, when the two conveying modules 1 are in a horizontal state and synchronously convey the bagged flour, the stepping direction of the left and right modules is completely consistent to ensure that the material is fed synchronously. In this second embodiment, when the bagged flour being transported and stacked is of a lighter weight, in order to save overall system energy consumption, the two outer guide wheels 191 on the same conveying module 1 can be connected by adding a transmission pulley at their ends, and then a transmission belt can be used to flexibly connect them. A drive motor can then drive the two wheels to rotate synchronously, which effectively reduces manufacturing costs.

[0028] In this embodiment, an electric actuator 30 is fixedly connected to the outer wall of the device housing 28. A connector 31 is fixedly connected between the output end of the electric actuator 30 and the corresponding position of the cooperating frame 7. An electric actuator 32 is also fixedly connected to the outer wall of the device housing 28, and a connector 33 is fixedly connected between the output end of the electric actuator 32 and the active rod 15.

[0029] Specifically, electric actuator 232 and electric actuator 130 are both reliable unidirectional linear drive devices on the market. Depending on the different factory usage environment conditions, they can also be replaced by equivalent linear drive devices such as cylinders and precision electric slide rails. Since electric actuator 130 and similar replacement parts require the drive frame to move as a whole, their mechanical power requirements and rated load are relatively high.

[0030] In this embodiment, the lifting structure includes an equipment support frame 35, which is disposed on the lower side of the conveying module 1. The cavity of the equipment support frame 35 does not contact the base plate 34. A hydraulic cylinder 36 is rotatably connected between the equipment support frame 35 and the base plate 34. Two symmetrically positioned rotating shafts 37 are fixedly connected to the inner wall of the upper end of the equipment support frame 35, and the end of each rotating shaft 37 away from the inner wall of the equipment support frame 35 is fixedly connected to the equipment housing 28.

[0031] For details, please refer to Figure 1The hinge positions connecting the rotating shafts 37 on the two equipment support frames 35 to the two conveying modules 1 are not the same. Specifically, the dimensional geometry is that the lateral distance of the left rotating shaft 37 near the intersection of the two conveying modules 1 minus the lateral distance of the right rotating shaft 37 near the intersection of the two conveying modules 1 is exactly equal to half the length of the rotating plate 5. Therefore, when the two hydraulic cylinders 36 synchronously push the corresponding base plate 34 upwards and flips, the base plate 34, the equipment housing 28, and the entire conveying module 1 will rotate in an arc around their respective rotating shafts 37. Simultaneously, through precise positional space calculations, the equipment housing 28 and the conveying module... 1. During the entire rotation process, there will be no rigid interference or physical contact with other peripheral equipment. When the hydraulic cylinder 36 pushes to the end of the stroke, the conveying module 1 will be completely vertical. At this time, due to the different offset positions of the rotating shaft 37 connected to the two conveying modules 1, the height of the two conveying modules 1 after flipping will be different. The absolute height difference is exactly half the length of the rotating plate 5. Therefore, this asymmetrical hinge design can perfectly interlock the bagged flour carried on the two conveying modules 1 after the conveying module 1 is completely vertical to facilitate high-stability interlocking and stacking. In this second embodiment, the hydraulic cylinder 36 that provides high power for tilting can also be replaced by a large-tonnage electric jack, or a high-torque reduction motor can be directly connected to the axis of the rotating shaft 37 for direct control and drive. At the same time, when the conveying module 1 rotates to the vertical position, it is safely locked by an electromagnetic brake, so that the normal stacking operation of the equipment can be completed stably and reliably.

[0032] Working principle: In the initial horizontal state, the device drives the outer guide wheel 191 via the drive motor 29 to transport flour bags unidirectionally via the conveyor belt 8. During this process, the drive rod 15 drives the drive toothed plate 40 to move and mesh with the secondary gear 25 and the main gear 24 to rotate. This, in turn, raises the longitudinal slider 22 and the guide wheel 20 via the toothed rod 23, causing the conveyor belt 8 to form a local concavity to generate resistance against the passing flour bags, thereby completing posture correction and initial positioning. Subsequently, the drive rod 15 continues to move outward, causing the sliding plate 9 and the internal water-filled liquid rod 10 and slide rod 11 to tilt. This overcomes the friction of the limiting rods 13 on both sides of the transverse slide cylinder 12, lifting the rotating plate 5 together with the flour bags on it to be perpendicular to the main frame 4. At the same time, the drive rod 15 pulls the elastic telescopic rod 17 through the connecting seat 16 to tilt and raise the lower guide wheel assembly 3 to release the excess of the conveyor belt 8, causing the conveyor belt 8 to fold between the rotating plates 5 to form a near- The structure resembles a right-angled triangle. The hydraulic cylinder 36 at the bottom pushes the base plate 34, causing the two conveying modules 1 to rotate around the asymmetrically arranged rotating shaft 37 to a vertical position. Utilizing the offset distance difference between the two rotating shafts 37, the two conveying modules 1 create a height difference equal to half the length of the rotating plate 5 when they close, resulting in a staggered arrangement of the flour bags on both sides. Finally, the cooperating frame 7 pulls the shaft plate 6 outwards, removing the rotating plate 5 from the bottom of the flour bags. Combined with the tension generated when the lower guide wheel group 3 resets and tensions the conveyor belt 8, and the inclined surface resistance, all the flour bags on the two conveying modules 1 fall synchronously and vertically, stacking securely on the trolley at the bottom. This effectively prevents the material from tilting or collapsing. After stacking, each component is orderly restored under the reverse action of the hydraulic cylinder 36, electric push rod 30, and electric push rod 32 to prepare for the next work cycle.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flour bag stacking device for flour production, comprising two symmetrically placed conveying modules (1), characterized in that: The conveying module (1) includes a main frame (4), and a number of rotating plates (5) are equidistantly arranged on the upper surface of the main frame (4). A number of upper guide wheel groups (2) are also equidistantly arranged on the upper surface of the main frame (4), and each upper guide wheel group (2) is adjacent to a rotating plate (5). A number of lower guide wheel groups (3) corresponding to the positions of the upper guide wheel groups (2) are arranged on the lower side of the main frame (4). A conveyor belt (8) is sleeved between the upper guide wheel groups (2) and the lower guide wheel groups (3), and the conveyor belt (8) is attached to the upper surface of the rotating plate (5). Each of the rotating plates (5) is rotatably connected to a shaft plate (6) at one end away from the guide wheel group (2) at the corresponding position. The lower end of the shaft plate (6) is fixed to a cooperating frame (7), and the cooperating frame (7) can move up and down. On the upper surface of the main frame (4), a sliding long plate (9) is slidably connected to one side of each rotating plate (5). A slanted push structure is provided between each sliding long plate (9) and the corresponding rotating plate (5), which can push the rotating plate (5) to a state perpendicular to the main frame (4). Both ends of each sliding long plate (9) are fixedly connected to an active rod (15). Several connecting seats (16) are fixedly connected to the outer wall of the active rod (15). The lower end of each connecting seat (16) is rotatably connected to an inclined elastic telescopic rod (17) with the corresponding lower guide wheel group (3).

2. As described in claim 1, characterized in that: The upper guide wheel assembly (2) includes two guide wheels (20), and a guide wheel (21) is provided between the two guide wheels (20). Both ends of the guide wheels (20) are provided with a misaligned structure, which can drive the two guide wheels (20) to move up and down in a misaligned manner. Each of the conveying modules (1) is provided with a lifting structure at its lower end, which can change the conveying module (1) from being placed horizontally to being placed vertically.

3. As described in claim 1, characterized in that: The lower guide wheel assembly (3) includes two guide wheels (19). The outer walls of the two guide wheels (19) are in contact with the conveyor belt (8). Both ends of the two guide wheels (19) are rotatably connected to a guide wheel positioning seat (18). The upper surface of the guide wheel positioning seat (18) is rotatably connected to the lower end of the elastic telescopic rod (17). The upper surface of the guide wheel positioning seat (18) is fixed with two symmetrically positioned positioning columns (26). The outer walls of the positioning columns (26) are slidably connected to the main frame (4).

4. As described in claim 1, characterized in that: The inclined push structure includes two liquid rods (10), which are symmetrically rotated and connected to the upper surface of the sliding plate (9). Each liquid rod (10) has a sliding rod (11) slidably connected to one end away from the sliding plate (9). Each rotating plate (5) has two sliding grooves (14) on its lower surface that are opposite to the sliding rods (11). A transverse sliding cylinder (12) is fixed to one end of the sliding rod (11) away from the liquid rod (10). A limiting rod (13) is slidably connected to both sides of the transverse sliding cylinder (12), and the limiting rod (13) is slidably inserted into the cavity on both sides of the sliding groove (14).

5. As described in claim 2, characterized in that: The misalignment structure includes a longitudinal slider (22), which is rotatably connected to both ends of each guide wheel (20). A longitudinal sliding frame (27) is provided on the side of the outer wall of the main frame (4) close to the longitudinal slider (22), and the cavity of the longitudinal sliding frame (27) is slidably connected to the longitudinal slider (22). A toothed rod (23) is fixedly connected to the side of the two longitudinal sliders (22) that are close to each other. A main gear (24) is meshed between the two toothed rods (23). A torsion spring shaft (39) is fixedly connected between the main gear (24) and the main frame (4). A secondary gear (25) is fixedly connected to the side of the main gear (24) away from the main frame (4). A drive toothed plate (40) is provided on the lower side of each secondary gear (25) and is fixedly connected to the drive rod (15). The drive toothed plate (40) can mesh with the secondary gear (25) when it moves away from the shaft plate (6).

6. As described in claim 1, characterized in that: Two symmetrically positioned equipment housings (28) are screwed onto the outer side wall of the main frame (4). The lower ends of the two equipment housings (28) are fixedly connected to a base plate (34). Two outer guide wheels (191) are rotatably connected between the two equipment housings (28), and the outer side walls of the two outer guide wheels (191) abut against the conveyor belt (8). A drive motor (29) is fixedly connected to the outer side wall of the equipment housing (28), and the output end of the drive motor (29) is fixedly connected to the outer guide wheel (191). Two symmetrically positioned side guide wheels (38) are rotatably connected to both ends of the main frame (4), and the side guide wheels (38) abut against the outer side wall of the conveyor belt (8).

7. As described in claim 6, characterized in that: An electric actuator (30) is fixedly connected to the outer wall of the device housing (28). A connector (31) is fixedly connected between the output end of the electric actuator (30) and the corresponding position of the cooperating frame (7). An electric actuator (32) is also fixedly connected to the outer wall of the device housing (28), and a connector (33) is fixedly connected between the output end of the electric actuator (32) and the active rod (15).

8. As described in claim 2, characterized in that: The lifting structure includes an equipment support frame (35), which is located on the lower side of the conveying module (1). The cavity of the equipment support frame (35) does not contact the base plate (34). A hydraulic cylinder (36) is rotatably connected between the equipment support frame (35) and the base plate (34). Two symmetrically positioned rotating shafts (37) are fixed to the inner wall of the upper end of the equipment support frame (35), and the end of each rotating shaft (37) away from the inner wall of the equipment support frame (35) is fixed to the outer shell (28).

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