A mobile powder feeding device and a feeding method

Abstract

The present invention discloses a mobile powder feeding device and method, and its technical solution: includes a PLC controller, at least one small bag feeding mechanism, a large bag feeding mechanism, a metering storage tank, and a mixer. It also includes a feeding platform, a mobile container, and a conveying mechanism. The mobile container receives the material in the metering storage tank and is conveyed to the mixer through the conveying mechanism for feeding. It meets the requirements of hygiene and reduced cleaning, improves the automation level, avoids human contact with the product, reduces manual operation and standby time, realizes automatic feeding, improves production efficiency, and reduces the labor intensity of personnel.

Description

Technical Field

[0001] The present invention relates to the field of new energy, and particularly to a mobile powder feeding device and method. Background Art

[0002] In recent years, with the accelerating development of powder equipment in China's new energy battery industry, the upward space of the equipment will be further improved. At the same time, it is facing severe challenges of having to meet the requirements of rational resource utilization, energy conservation and consumption reduction, and environmental protection. While conforming to the economies of scale and variety diversification of the device, the powder equipment should develop towards automatic control and mechatronics.

[0003] Since a battery raw material requires a variety of powder materials to be mixed, the existing technology process is that a variety of powder materials go through processes such as bag opening → metering → screw feeding → sending to a storage tank for mixing → kneader. The disadvantages are particularly obvious. For such a kneader, a set of such equipment for feeding is required, and the cost is high, and the number of operating workers invested also increases exponentially. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the present invention provides a mobile powder feeding device and method, which meet the requirements of hygiene and reduced cleaning, improve the automation level, avoid the contact between people and products, reduce manual operation and standby time, realize automatic feeding, improve production efficiency, and reduce the labor intensity of personnel.

[0005] To achieve the above object, the present invention is realized through the following technical solutions:

[0006] Preferably: A mobile powder feeding device includes a PLC controller, at least one small bag feeding mechanism, a large bag feeding mechanism, a metering storage tank, and a kneader. It further includes a feeding platform, a mobile container, and a conveying mechanism. The mobile container receives the materials in the metering storage tank and is conveyed to the kneader through the conveying mechanism for feeding.

[0007] Preferably, the conveying mechanism includes a horizontal conveying line, a vertical conveying line, a container rotation and docking device, and a container positioning device. The feeding platform adopts a three-layer structure. The small-bag feeding mechanism and the large-bag feeding mechanism are installed on the third layer of the feeding platform at uniform intervals. The metering storage tanks are installed on the second layer of the feeding platform through a metering rack, and each metering storage tank corresponds to the positions below the small-bag feeding mechanism and the large-bag feeding mechanism respectively. One horizontal conveying line is arranged below each row of metering storage tanks, and one container positioning device is arranged below each metering storage tank. The vertical conveying line intersects with the horizontal conveying line, and the container rotation and docking device is installed at the intersection position. The mixer is installed on the first layer of the feeding platform, and one container positioning device corresponds to each mixer. The moving container moves to the position below each metering storage tank in turn through the horizontal conveying line. The metering storage tank conveys the material to the moving container through a metering screw. One moving container can convey the material to multiple mixers. The overall structure is simple, and the feeding and material conveying are fully automatically controlled by a PLC controller, improving the production efficiency.

[0008] Preferably, the container positioning device includes a first moving mechanism, a first limiting mechanism, a positioner, and four pairs of first photoelectric sensors. The first moving mechanism is used to convey the moving container. The four pairs of first photoelectric sensors are evenly installed on the first moving mechanism and can sense the moving container in both forward and reverse directions. The first limiting mechanism is installed between the first moving mechanisms to limit the moving container body through the first limiting mechanism, and then the positioner is used to position the moving container. The container positioning device allows the moving container to run at high speed along the rolling axis. When positioning is required, through the first photoelectric sensors, the moving container can be sensed regardless of its forward or reverse movement, and the first moving mechanism is controlled to decelerate and stop to reduce the impact during positioning. The cooperation of the first limiting mechanism and the positioner can effectively position the moving container, realizing automatic positioning, with a large allowable load and high positioning accuracy. After positioning, the moving container can meet the requirements of automatic feeding, reducing the manual operation time and improving the product hygiene level.

[0009] Preferably, the first moving mechanism includes a base, a first conveying seat, a first driving motor, a long driving shaft, and a plurality of rollers. The first conveying seat is installed on the upper side of the base. An installation seat is arranged in the middle of the first conveying seat. First baffles are installed on both sides of the first conveying seat. Rollers are respectively pivoted between both sides of the installation seat and the first baffles. A gear is provided at one end of each roller, and adjacent gears are connected by a chain. The first driving motor and the long driving shaft are installed at the bottom of the first conveying seat. The first driving motor drives the long driving shaft to rotate through a chain. Both ends of the long driving shaft are respectively connected to one of the rollers on both sides of the installation seat through a chain. Weight sensors are provided around the upper side of the base, and the weight sensors are located between the first conveying seat and the base. The first driving motor is a servo motor, which can drive the long driving shaft to rotate forward and backward, thereby driving the rollers on both sides to rotate forward and backward, facilitating the reciprocating movement of the moving container. The weight sensors weigh the moving container, which can review the weight of the powder falling into the moving container, thereby judging whether the powder has fallen completely.

[0010] Preferably, the first limiting mechanism includes a first buffer limiter, a first hard limiter, a second buffer limiter, and a second hard limiter. The first buffer limiter and the first hard limiter are located on one side of the installation seat, and the second buffer limiter and the second hard limiter are located on the other side of the installation seat. The first buffer limiter and the second buffer limiter have the same structure, and the first hard limiter and the second hard limiter have the same structure. The moving container can be roughly positioned between the first hard limiter and the second hard limiter, and the rough positioning of the moving container is completed.

[0011] Preferably, the first buffer limiter includes a first bottom plate, a first mounting block, a first cylinder, a first lifting block, and an oil buffer. The first mounting block is connected to the upper side of the first bottom plate. The first cylinder is fixed to the inner bottom of the first mounting block. The upper side of the first mounting block is movably matched with the first lifting block. The first cylinder drives the first lifting block to lift and lower, and the oil buffer is installed on the first lifting block. The second hard limiter includes a second bottom plate, a second mounting block, a second cylinder, a second lifting block, an adjustable screw rod, and a striking block. The second mounting block is connected to the upper side of the second bottom plate. The second cylinder is fixed to the inner bottom of the second mounting block. The upper side of the second mounting block is movably matched with the second lifting block. The second cylinder drives the second lifting block to lift and lower, and the adjustable screw rod is installed on the second lifting block, and a striking block is fixed to one end of the adjustable screw rod. The oil buffer can buffer the moving container and absorb the impact of the moving container, while the moving container can be directly stopped by the striking block.

[0012] Preferably, the locator consists of a pair of positioning components and a pair of adjusting components. The adjusting components are parallel to the positioning components. The positioning components include a third cylinder, a movable block, and a third positioning pin. The third cylinder is connected to the mounting base. The piston rod on the third cylinder is connected to the movable block. The third positioning pin is installed on the upper side of the movable block. Guide rods are arranged on both sides of the movable block. The adjusting components include a fourth cylinder, an adjusting plate, and at least two bull's-eye bearings. The piston rod on the fourth cylinder is connected to the adjusting plate, and the bull's-eye bearings are installed on the adjusting plate. The bull's-eye bearings are used to adjust the position of the moving container. Finally, it is connected to the third positioning pin seat on the moving container through the third positioning pin to complete the positioning.

[0013] Preferably, the container rotation and docking device includes a rotation mechanism, a second moving mechanism, a second limiting mechanism, and four pairs of second photoelectric sensors. The four pairs of second photoelectric sensors are evenly spaced and installed on the second moving mechanism. They can sense the moving container during both forward and reverse movements. The second limiting mechanism is installed between the second moving mechanisms to limit the moving container body, so that the rotation mechanism drives the second moving mechanism to rotate. Coarse positioning of the two sides of the moving container is performed through the second limiting mechanism to prevent the moving container from slipping during rotation. Finally, the rotation mechanism drives the drum chassis on the rotary support to rotate together. The rotation angle is detected and controlled by an angle sensor, and then the rotary table reduction motor is decelerated and stopped by a PLC controller. After the rotation is completed, the second limiting mechanism descends, and the moving container can be transferred to the next conveyor line.

[0014] Preferably, the rotation mechanism includes a rotary table reduction motor, a rotary base, a rotary table bearing, a rotary support, and a drum chassis. The rotary table reduction motor is fixed to the rotary base through a motor mounting plate. The rotary table reduction motor can be a worm and gear reduction motor. The bottom of the rotary support is connected to the rotary base through the rotary table bearing. The outer ring of the rotary table bearing is provided with external teeth. A driving gear is connected to the rotary table reduction motor. The rotary table reduction motor drives the driving gear to mesh with the external teeth, thereby driving the rotary support to rotate. The drum chassis is fixed on the upper side of the rotary support. Bull's-eye bearings are provided around the upper side of the drum chassis. Brackets are respectively provided at the front and rear ends of the drum on the drum chassis, and idler rollers are provided on the brackets. The rotation mechanism can rotate the moving container to enable it to perform a turning movement between the horizontal conveyor line and the vertical conveyor line. The bull's-eye bearings and the idler rollers are used for assisting the movement of the moving container after turning.

[0015] Preferably, two bumper strips and two angle sensors are sequentially installed on the four sides of the rotary base. The two bumper strips are installed on two adjacent sides of the rotary base, and the two angle sensors are installed on the other two adjacent sides of the rotary base. A limit block and a detection block are installed on the rotary support. On the opposite surfaces of the limit block and the detection block, when the limit block and the detection block on the rotary support rotate back and forth, the limit block contacts the two bumper strips respectively, and the detection block senses the two angle sensors respectively. The angle sensors send signals to the PLC controller to control the turntable reduction motor to stop rotating, and the limit block prevents further rotation through contact with the bumper strip, thereby limiting the rotation angle range of the rotary support. The angle sensor is used to control the rotation angle and simultaneously control the start and stop of the turntable reduction motor to ensure more accurate docking. The bumper strip is used for limiting.

[0016] Preferably, the second moving mechanism includes a second conveying seat, a second driving motor, and a number of rollers. The second conveying seat is installed on the upper side of the second roller chassis. Second baffle plates are installed on both sides of the second conveying seat, and rollers are installed between the second baffle plates. A gear is provided at one end of each roller, and adjacent gears are connected by a chain. The driving motor is connected to one of the rollers through a chain. The second limiting mechanism includes a third buffer limiter, a third hard limiter, a fourth buffer limiter, and a fourth hard limiter. The third buffer limiter and the third hard limiter are located on one side of the roller chassis, and the fourth buffer limiter and the fourth hard limiter are located on the other side of the roller chassis. The structures of the first buffer limiter, the second buffer limiter, the third buffer limiter, and the fourth buffer limiter are the same, and the structures of the first hard limiter position, the second hard limiter position, the third hard limiter position, and the fourth hard limiter position are the same. The second driving motor can be a servo motor, which drives the rollers to rotate forward and backward, thereby driving the moving container to rotate forward and backward, facilitating the movement of the moving container in any direction. The second photoelectric sensor is used to sense whether the moving container is approaching, and then sends a signal to the PLC controller. The PLC controller controls the second driving motor to slow down or stop. The third hard limiter and the fourth hard limiter are also used for rough limiting. After the rotation of the roller chassis is completed, it is released to dock with the next conveyor line.

[0017] Preferably, the mobile container includes a mobile rack, a container body, an upper automatic opening and closing assembly, and a lower automatic opening and closing assembly. Feeding ports and discharging ports are respectively arranged on the upper and lower sides of the container body. The container body is installed on the upper side of the mobile rack, and a bottom cushion plate and a surrounding edge are installed on the lower side of the mobile rack. A buffer stop bar is fixedly arranged on the side surface of the surrounding edge. The feeding port is matched with the upper automatic opening and closing assembly, and the discharging port is matched with the lower automatic opening and closing assembly. A pair of third positioning pin seats are further arranged at the bottom of the mobile rack, and a docking installation device is arranged on the side surface of the mobile rack. Since the bottom of the mobile rack is a flat surface and the whole bottom is covered by a high-strength non-metallic surrounding edge and a bottom cushion plate, it can be conveyed on a conveyor line, and the conveyor line can be a roller line, a chain plate line or other line bodies. The upper wafer type pneumatic butterfly valve and the lower wafer type pneumatic butterfly valve corresponding to the feeding port and the discharging port are respectively controlled to open and close by a PLC, and automatic feeding and discharging operations can be carried out; the third positioning pin seats are convenient for positioning, and the mobile container can run safely and reliably on the conveyor line. With positioning and pneumatic docking, the automatic opening and closing of the valve can be realized, ensuring the tightness and safety during the powder conveying process. The buffer stop bar has the function of anti-collision and buffering.

[0018] Preferably, the upper automatic opening and closing assembly includes an upper cover, an upper docking pipe, an upper rotating connection seat, an upper rotating cover plate, and an upper wafer type pneumatic butterfly valve. The upper cover is connected to the feeding port, and the upper wafer type pneumatic butterfly valve is arranged on the upper side of the upper cover. The upper docking pipe is installed on the upper side of the upper wafer type pneumatic butterfly valve, and the upper rotating connection seat is installed on the side surface of the upper docking pipe. A first rotating cylinder is arranged on the upper rotating connection seat, and the first rotating cylinder drives the upper rotating cover plate to open and close in cooperation with the upper side of the upper docking pipe; the lower automatic opening and closing assembly includes a lower cover, a lower docking pipe, a lower rotating connection seat, a lower rotating cover plate, and a lower wafer type pneumatic butterfly valve. The lower cover is connected to the discharging port, and the lower wafer type pneumatic butterfly valve is arranged on the lower side of the lower cover. The lower docking pipe is installed on the lower side of the lower wafer type pneumatic butterfly valve, and the lower rotating connection seat is installed on the side surface of the lower docking pipe. A second rotating cylinder is arranged on the lower rotating connection seat, and the second rotating cylinder drives the lower rotating cover plate to open and close in cooperation with the lower side of the lower docking pipe. The automatic opening and closing of the valve can be realized, reducing manual operation and improving efficiency. The upper surface of the feeding port of the upper docking pipe is a plane, which can contact the sealing strip of the docking mechanism at other workstations to ensure tightness.

[0019] Preferably, a floating docking mechanism is arranged on one side of each container positioning device. The floating docking mechanism includes an installation rack, a lifting device, a floating device, and a locking device. The lifting device is connected to the installation rack, the lifting device is connected to the floating device, and the lifting device drives the floating device to dock with the docking installation device and fixes the floating device and the docking installation device through the locking device. The lifting device can drive the floating device to complete the air source inlet and outlet docking with the docking installation device. After the floating device and the docking installation device are fixedly clamped through the locking device, the air source sealing docking is completed; the high-precision automatic docking of the air source of the mobile container is realized, and the docking is stable and reliable, so as to realize the high-degree automatic feeding of powder when the container moves.

[0020] Preferably, the lifting device includes a fixed seat, a fifth cylinder, a lifting seat, a sixth cylinder and a sliding seat. A pair of slide rails are provided on the front side of the mounting frame. The lifting seat and the sliding seat are both slidably connected to the slide rails. The fixed seat is fixedly installed on the top of the mounting frame. The fifth cylinder is installed on the fixed seat. The piston rod of the fifth cylinder is connected to the lifting seat. A pair of sixth cylinders are installed on the lifting seat. The piston rods of the sixth cylinders are connected to the sliding seat. A pair of seventh cylinders are symmetrically provided on both sides of the sliding seat. The seventh cylinders are connected with first positioning pins. The fifth cylinder is used to drive the lifting seat and the sliding seat to descend preliminarily, and then the sixth cylinder is used to drive the sliding seat to accurately control the descending range, so as to complete the precise cooperation of each component.

[0021] Preferably, the floating device includes a first floating plate, a second floating plate, a first ball linear slide rail, a second ball linear slide rail and a second positioning pin. A pair of first ball linear slide rails are horizontally installed on the upper side of the first floating plate. The top of the first ball linear slide rail is connected to the bottom of the sliding seat. A pair of first ball linear slide rails are vertically installed between the first floating plate and the second floating plate. There is an activity hole between the first floating plate and the second floating plate. First positioning pin seats are provided on both sides of the second floating plate. A number of air inlets are also provided on the upper part of the second floating plate. An air outlet communicated with the air inlets is arranged at the lower part of the second floating plate. An O-ring seal is provided between the air outlet and the second floating plate. A pair of second positioning pins are symmetrically installed at the lower part of the second floating plate. The O-ring seal is designed at the air outlet for effective sealing and leakage prevention. By driving the first positioning pins to retract by the seventh cylinders, the first positioning pins are disengaged from the first positioning pin seats. At this time, the sixth cylinder can drive the sliding seat to continue to move downward, and the second positioning pins also continue to move downward. The bottom shape of the second positioning pins adopts an inclined conical surface. By contacting the inclined conical surface with the first positioning pin seats, the first floating plate and the second floating plate can move slightly in the X direction and the Y direction. After the second positioning pins completely descend and are inserted into the first positioning pin seats, the docking installation device and the floating device are completely aligned, realizing the precise docking of the air source.

[0022] Preferably, the docking and installation device includes a third base plate, a dust-proof component, and a pair of docking blocks. A pair of docking blocks are installed on the upper side of the third base plate. A cavity is provided between the docking blocks on the third base plate. The docking blocks are provided with second positioning pin seats and a plurality of docking air inlets. An air outlet pipe is arranged below the docking air inlets, and the other end of the air outlet pipe passes through the bottom of the docking block. The dust-proof component is movably installed on the upper side of the third base plate. The dust-proof component includes a dust-proof cover plate, guide rods, a pushing cylinder, a nylon protection seat, a vacuum generator, and a vacuum suction cup. The dust-proof cover plate is provided with a stainless steel suction plate. The guide rods are respectively installed on both sides of the third base plate. Guide blocks slidably connected to the guide rods are provided on both sides of the bottom of the dust-proof cover plate. The pushing cylinder is installed on the side of the mounting frame. The piston rod of the pushing cylinder is connected to the nylon protection seat. A vacuum suction cup is provided on the front side of the nylon protection seat. The pushing cylinder drives the vacuum suction cup to be connected to the stainless steel suction plate, thereby pushing the dust-proof cover plate to move and be hermetically fitted with the docking block. When in use, the dust-proof cover is opened, and when not in use, the dust-proof cover is closed to protect the docking air inlets and keep them clean.

[0023] Preferably, the locking device includes a clamping cylinder, a clamping seat, a telescopic block, a pair of cams, and a pair of connecting rods. The connecting rods are respectively fixedly installed on both sides of the bottom of the cavity. The top of the clamping cylinder is fixed to the bottom of the sliding seat through a nylon protection sleeve. The clamping seat is installed at the bottom of the second floating plate. The bottom of the clamping cylinder passes through the inside of the clamping seat and is connected to the telescopic block. One end of a pair of cams is rotatably connected to the inside of the clamping seat, and both sides of the telescopic block are movably connected to the other end of the cams. The telescopic block is driven to expand and contract by the clamping cylinder, thereby driving the cams to rotate and cooperate with the connecting rods for clamping.

[0024] A mobile powder feeding method includes the following steps:

[0025] S1. Manually put the ton bags into the metering storage tank through the large bag feeding mechanism on the third layer of the feeding platform, and also put the small bags into the corresponding metering storage tank through the small bag feeding mechanism.

[0026] S2. The mobile container on the second layer of the feeding platform moves on the transverse conveyor line, and then successively moves under multiple metering storage tanks to receive materials. When receiving materials, the powder pipeline mechanism is connected to the upper feeding port of the mobile container. The mobile container opens the upper pair-clamp pneumatic butterfly valve, and then the materials in the metering storage tank are conveyed to the mobile container through the metering screw. Each time it moves under the corresponding metering storage tank, the mobile container is positioned by the container positioning device.

[0027] S3. After the mobile container has successively received materials, the mobile container moves on the transverse conveyor line, rotates when passing through the container rotation and docking device, and then moves on the longitudinal conveyor line until it reaches above the corresponding mixer, and the mobile container is positioned again by the corresponding container positioning device.

[0028] S4. The discharge opening of the mobile container is connected to the mixer through the powder pipeline mechanism, and then the lower pneumatic butterfly valve is opened to connect with the mixer for feeding.

[0029] S5. After the feeding is completed, the mobile container moves back under the metering storage tank to receive materials in sequence, and then repeats the above steps in a cycle to feed the mixed materials into another mixer.

[0030] The beneficial effects of the present invention are as follows:

[0031] The number of large-bag feeding mechanisms and small-bag feeding mechanisms is set accordingly according to the type of powder. Multiple metering storage tanks are also set accordingly. One mobile container can receive the powder from multiple metering storage tanks in sequence. After receiving, the weight of the powder can be rechecked. Then it rotates when passing through the container rotary docking device, and then moves on the longitudinal conveyor line until it is transported above the corresponding mixer to feed the mixed materials into the mixer. With this feeding method, only one mobile container is needed to feed multiple mixers, saving site space. It can also be actually expanded according to needs, improving the automation level, avoiding human contact with the product, reducing manual operation and standby time, realizing automatic feeding, improving production efficiency, and meeting the requirement of reducing the labor intensity of personnel. Brief Description of the Drawings

[0032] Figure 1 It is a front elevation schematic diagram of the mobile powder feeding method of the present invention;

[0033] Figure 2 It is a plan schematic diagram of the mobile powder feeding method of the present invention;

[0034] Figure 3 It is a partial connection schematic diagram of the mobile powder feeding equipment of the present invention;

[0035] Figure 4 It is a partial schematic diagram of the mobile powder feeding equipment of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the container positioning device in the present invention;

[0037] Figure 6 It is a partial schematic diagram of the container positioning device in the present invention;

[0038] Figure 7 It is a side elevation schematic diagram of the structure of the container positioning device in the present invention;

[0039] Figure 8 It is a schematic diagram of the structure of the locator in the present invention;

[0040] Figure 9 It is a schematic diagram of the bull eye bearing in the present invention;

[0041] Figure 10 Schematic diagram of the first buffer limiter in the present invention;

[0042] Figure 11 Internal schematic diagram of the first buffer limiter in the present invention;

[0043] Figure 12 Internal schematic diagram of the second hard limiter in the present invention;

[0044] Figure 13 Schematic diagram of the structure of the container rotation docking device in the present invention;

[0045] Figure 14 Planar schematic diagram of the container rotation docking device in the present invention;

[0046] Figure 15 Schematic diagram of the bottom structure of the container rotation docking device in the present invention;

[0047] Figure 16 Semi-sectional structure schematic diagram of the container rotation docking in the present invention;

[0048] Figure 17 Schematic diagram of the docking of the floating mechanism in the present invention;

[0049] Figure 18 Schematic diagram of the structure of the floating mechanism in the present invention;

[0050] Figure 19 Schematic diagram of the structure of the docking and installation device in the present invention;

[0051] Figure 20 Schematic diagram of the bottom of the docking and installation device in the present invention;

[0052] Figure 21 Schematic diagram of the structure of the floating mechanism from another angle in the present invention;

[0053] Figure 22 Schematic diagram of the structure of the floating device in the present invention;

[0054] Figure 23 Internal schematic diagram of the floating device in the present invention;

[0055] Figure 24 Schematic diagram of the structure of the locking device in the present invention;

[0056] Figure 25 Schematic diagram of the structure of the moving container in the present invention;

[0057] Figure 26 Planar schematic diagram of the locking device in the present invention.

[0058] Reference numerals:

[0059] 1. Mobile container; 11. Mobile rack; 12. Container body; 13. Bottom backing plate; 14. Perimeter edge; 15. Buffer stop bar; 16. Third positioning pin seat; 181. Upper cover; 182. Upper docking pipe; 183. First rotary cylinder; 184. Upper rotary cover plate; 185. Upper wafer type pneumatic butterfly valve; 191. Lower cover; 192. Lower docking pipe; 193. Lower rotary connection seat; 194. Lower rotary cover plate; 195. Lower wafer type pneumatic butterfly valve; 196. Second rotary cylinder;

[0060] 21. Horizontal conveyor line; 22. Vertical conveyor line; 23. Small bag feeding mechanism; 24. Large bag feeding mechanism; 25. Feeding platform; 26. Kneader; 27. Metering storage tank;

[0061] 3. Container positioning device; 31. First moving mechanism; 311. Base; 312. First conveyor seat; 313. First driving motor; 314. Long driving shaft; 315. Roller; 316. Mounting seat; 317. First baffle; 32. Positioner; 321. Third cylinder; 322. Movable block; 323. Third positioning pin; 324. Guide rod; 325. Fourth cylinder; 326. Adjusting plate; 327. Ball bearing; 33. First limiting mechanism; 34. First photoelectric inductor; 35. Weighing sensor; 36. First buffer limiter; 361. First bottom plate; 362. First mounting block; 363. First cylinder; 364. First lifting block; 365. Oil buffer; 37. First hard limiter; 38. Second buffer limiter; 39. Second hard limiter; 391. Second bottom plate; 392. Second mounting block; 394. Second lifting block; 395. Adjustable screw; 396. Bumper block;

[0062] 4. Container rotary docking device; 41. Rotary mechanism; 411. Turntable reduction motor; 412. Rotary base; 413. Turntable bearing; 414. Rotary support; 415. Drum chassis; 416. External teeth; 417. Support; 418. Idle roller; 42. Second moving mechanism; 421. Second conveyor seat; 422. Second driving motor; 423. Drum; 424. Second baffle; 43. Second limiting mechanism; 431. Third buffer limiter; 432. Third hard limiter; 433. Fourth buffer limiter; 434. Fourth hard limiter; 44. Second photoelectric inductor; 45. Bump bar; 46. Angle sensor; 47. Limit block; 48. Detection block;

[0063] 5. Floating docking mechanism; 51. Mounting frame;

[0064] 6. Lifting device; 61. Fixed seat; 62. Fifth cylinder; 63. Lifting seat; 64. Sixth cylinder; 65. Sliding seat; 66. Slide rail; 67. Seventh cylinder; 68. First positioning pin;

[0065] 7. Floating device; 71. First floating plate; 72. Second floating plate; 73. First ball linear slide rail; 74. Second ball linear slide rail; 75. Second positioning pin; 76. Moving hole; 77. First positioning pin seat; 78. Air inlet; 79. Air outlet;

[0066] 8. Locking device; 81. Clamping cylinder; 82. Clamping seat; 83. Telescopic block; 84. Cam; 85. Connecting rod;

[0067] 9. Docking and installation device; 91. Third bottom plate; 92. Dust-proof component; 921. Dust-proof cover plate; 922. Guide rod; 923. Pushing cylinder; 924. Nylon protection seat; 925. Vacuum generator; 926. Vacuum chuck; 927. Stainless steel suction plate; 93. Docking block; 94. Cavity; 95. Second positioning pin seat; 96. Air inlet; 97. Outlet pipe;

[0068] 10. Powder pipeline docking mechanism. Detailed implementation manners

[0069] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0070] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0071] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0072] In combination with the drawings, the preferred embodiments of the present invention will be further described in detail.

[0073] As Figure 1-26The described mobile powder feeding equipment includes a PLC controller, at least one small-bag feeding mechanism 23, a large-bag feeding mechanism 24, a metering storage tank 27, a mixer 26, a feeding platform 25, a mobile container 1, and a conveying mechanism. The mobile container 1 receives the materials in the metering storage tank 27 and is conveyed to the mixer 26 through the conveying mechanism. The conveying mechanism includes a horizontal conveying line 21, a vertical conveying line 22, a container rotation docking device 4, and a container positioning device 3. The feeding platform 25 adopts a three-layer structure and is equipped with an elevator. The small-bag feeding mechanism 23 and the large-bag feeding mechanism 24 are installed on the third layer of the feeding platform 25 at uniform intervals. The actual numbers of the large-bag feeding mechanism 24 and the small-bag feeding mechanism 23 are set according to the types of powders. The metering storage tank 27 is installed on the second layer of the feeding platform 25 through a metering rack, and each metering storage tank 27 corresponds to the positions below the small-bag feeding mechanism 23 and the large-bag feeding mechanism 24 respectively. Usually, the number of the metering storage tanks 27 is the sum of the large-bag feeding mechanism 24 and the small-bag feeding mechanism 23. One horizontal conveying line 21 corresponds to the positions below each row of the metering storage tanks 27, and one container positioning device 3 corresponds to the position below each metering storage tank 27. The vertical conveying line 22 intersects with the horizontal conveying line 21, and the container rotation docking device 4 is installed at the intersection position. A plurality of mixers 26 are installed on the first layer of the feeding platform 25, and one container positioning device 3 corresponds to the position above each mixer 26. Actually, multiple rows of horizontal conveying lines 21 and vertical conveying lines 22 can be set according to the number of the metering storage tanks 27 or the number of the mixers 26. The mobile container 1 moves to the position below the metering storage tank 27 through the horizontal conveying line 21. The metering storage tank 27 conveys the materials to the mobile container 1 through a metering screw. The mobile container 1 moves to the position above the mixer 26 through the horizontal conveying line 21, the container rotation docking device 4, and the vertical conveying line 22. The mobile container 1 is docked with the mixer 26 for feeding. One mobile container 1 can sequentially receive the powders from multiple metering storage tanks 27 and can feed the mixed powder materials into multiple mixers 26. The PLC controller fully automatically controls the material receiving and feeding to improve the production efficiency.

[0074] The container positioning device 3 includes a first moving mechanism 31, a first limiting mechanism 33, a positioner 32 and four pairs of first photoelectric sensors 34. The first moving mechanism 31 is used to transport the mobile container 1. The four pairs of first photoelectric sensors 34 are evenly spaced and installed on the first moving mechanism 31. The mobile container 1 can be sensed in both forward and reverse directions. The first limiting mechanism 33 is installed between the first moving mechanisms 31. The container positioning device 3 allows the mobile container 1 to run at high speed along the roller 315 line. When positioning is required, the first photoelectric sensor 34 can sense the mobile container 1 in both forward and reverse directions, and control the first moving mechanism 31 to slow down and stop to reduce the impact during positioning. The first limiting mechanism 33 limits the mobile container 1 body, and then the positioner 32 positions the mobile container 1. The first limiting mechanism 33 and the positioner 32 cooperate to effectively position the mobile container 1, realize automatic positioning, and allow large load and high positioning accuracy. After positioning, the mobile container 1 can meet the requirements of automatic feeding, reduce manual operation time, and improve product hygiene.

[0075] The first moving mechanism 31 includes a base 311, a first conveying seat 312, a first driving motor 313, a long driving shaft 314 and a plurality of rollers 315. The first conveying seat 312 is installed on the upper side of the base 311. A mounting seat 316 is arranged in the middle of the first conveying seat 312. First baffles 317 are installed on both sides of the first conveying seat 312. Rollers 315 are respectively connected between the two sides of the mounting seat 316 and the first baffles 317. A gear is arranged at one end of each roller 315, and adjacent gears are connected by a chain. The first driving motor 313 and the long driving shaft 314 are installed at the bottom of the first conveying seat 312. The first driving motor 313 drives the long driving shaft 314 to rotate through a chain. The two ends of the long driving shaft 314 are respectively connected to one of the rollers 315 on both sides of the mounting seat 316 through a chain. The first driving motor 313 adopts a servo motor to drive the long driving shaft 314 to rotate forward and reverse, thereby driving the rollers 315 on both sides to rotate forward and reverse, so as to facilitate the mobile container 1 to move back and forth.

[0076] The upper side of the base 311 is surrounded by weighing sensors 35, which are located between the first conveying seat 312 and the base 311. The weighing sensors 35 weigh the mobile container 1 to check the weight of the powder dropped into the mobile container 1, thereby judging whether the powder in the metering tank 27 has dropped completely.

[0077] The first limiting mechanism 33 includes a first buffer limiter 36, a first hard limiter 37, a second buffer limiter 38 and a second hard limiter 39. The first buffer limiter 36 and the first hard limiter 37 are located on one side of the mounting base 316, and the second buffer limiter 38 and the second hard limiter 39 are located on the other side of the mounting base 316. The first buffer limiter 36 and the second buffer limiter 38 have the same structure, and the first hard limiter 37 and the second hard limiter 39 have the same structure. The mobile container 1 can be roughly positioned between the first hard limiter 37 and the second hard limiter 39, and the rough positioning of the mobile container 1 is completed.

[0078] The first buffer limiter 36 includes a first bottom plate 361, a first mounting block 362, a first cylinder 363, a first lifting block 364 and an oil buffer 365. The first mounting block 362 is connected to the upper side of the first bottom plate 361. The first cylinder 363 is fixed to the inner bottom of the first mounting block 362. The upper side of the first mounting block 362 is movably matched with the first lifting block 364. The first cylinder 363 drives the first lifting block 364 to lift and lower. The oil buffer 365 is installed on the first lifting block 364. The second hard limiter 39 includes a second bottom plate 391, a second mounting block 392, a second cylinder, a second lifting block 395, an adjustable screw 396 and a striker 397. The second mounting block 392 is connected to the upper side of the second bottom plate 391. The second cylinder is fixed to the inner bottom of the second mounting block 392. The upper side of the second mounting block 392 is movably matched with the second lifting block 395. The second cylinder drives the second lifting block 395 to lift and lower. The adjustable screw 396 is installed on the second lifting block 395, and the striker 397 is fixed to one end of the adjustable screw 396. The oil buffer 365 can buffer the moving container and absorb the impact of the mobile container 1, and the mobile container 1 can be directly stopped by the striker 397.

[0079] The positioner 32 is composed of a pair of positioning components and a pair of adjusting components. The adjusting components are parallel to the positioning components. The positioning components include a third cylinder 321, a movable block 322 and a third positioning pin 323. The third cylinder 321 is connected to the mounting base 316. The piston rod on the third cylinder 321 is connected to the movable block 322. The third positioning pin 323 is installed on the upper side of the movable block 322. Guide rods 324 are arranged on both sides of the movable block 322. The adjusting components include a fourth cylinder 325, an adjusting plate 326 and at least two bull's-eye bearings 327. The piston rod on the fourth cylinder 325 is connected to the adjusting plate 326, and the bull's-eye bearings 327 are installed on the adjusting plate 326. The bull's-eye bearings 327 are used to adjust the position of the mobile container 1. Finally, it is connected to the third positioning pin seat 16 on the mobile container 1 through the third positioning pin 323 to complete the positioning.

[0080] When the actual container positioning device 3 works, first, the mobile container 1 moves from the conveyor line onto the roller 315. For example, Figure 5The mobile container 1 is transported from left to right. When the mobile container 1 approaches the first first photoelectric sensor 34 on the left, the photoelectric sensor sends a signal to the PLC controller to control the first drive motor 313 to decelerate. At the same time, the PLC controller also controls the second buffer stopper 38 and the second hard stopper 39 to rise, that is, it is in a blocking state. The mobile container 1 continues to run, and the roller 315 decelerates. When the second first photoelectric sensor 34 on the left detects the mobile container 1, the first drive motor 313 is controlled to stop. After the roller 315 stops, due to the effect of inertia, the mobile container 1 will not stop immediately, but will continue to run to the second buffer stopper 38. Under the action of the oil pressure buffer 365, the impact of the mobile container 1 will be absorbed until the mobile container 1 hits the second hard stopper 39, and the mobile container 1 stops; after the mobile container 1 stops, the first buffer stopper 36 and the first hard stopper 37 are raised, that is, the mobile container 1 is roughly positioned between the two hard stoppers. At this point, the rough positioning of the mobile container 1 is completed. Then, the precise positioning of the mobile container 1 begins. The fourth cylinder 325 drives the bull's eye bearing 327 on the adjustment plate 326 to lift up. The bull's eye bearing 327 contacts the mobile container 1 and causes the mobile container 1 to separate from the roller 315. The third positioning pin 323 is lifted up. The inclined surface of the head of the third positioning pin 323 can drive the mobile container 1 to move slightly on the bull's eye bearing 327. Finally, under the guidance of the third positioning pin 323 and the floating of the bull's eye bearing 327, the third positioning pin 323 can be smoothly introduced into the third positioning pin seat 16 of the mobile container 1. Since the two are precisely matched, the mobile container 1 has been accurately positioned at this time. After the third positioning pin 323 is introduced, the bull's eye bearing 327 drops, causing the mobile container 1 to fall back onto the roller 315. At this point, the positioning of the mobile container 1 is completed.

[0081] The container rotation docking device 4 includes a rotation mechanism 41, a second moving mechanism 42, a second limiting mechanism 43 and four pairs of second photoelectric sensors 44. The four pairs of second photoelectric sensors 44 are evenly spaced and installed on the second moving mechanism 42. The moving container 1 can be sensed in both forward and reverse directions. The second limiting mechanism 43 is installed between the second moving mechanisms 42. The moving container 1 body is limited by the second limiting mechanism 43, so that the rotation mechanism 41 drives the second moving mechanism 42 to rotate. The moving container 1 is roughly positioned on both sides by the second limiting mechanism 43 to prevent the moving container 1 from slipping during rotation.

[0082] The rotation mechanism 41 includes a turntable reduction motor 411, a rotating base 412, a turntable bearing 413, a slewing bracket 414, and a chassis 415 of the roller 423. The turntable reduction motor 411 is fixed to the rotating base 412 through a motor mounting plate. The turntable reduction motor 411 can adopt a worm and worm gear reduction motor. The bottom of the slewing bracket 414 is connected to the rotating base 412 through the turntable bearing 413. The outer ring of the turntable bearing 413 is provided with external teeth 416. A driving gear is connected to the turntable reduction motor 411. The turntable reduction motor 411 drives the driving gear to mesh with the external teeth 416, thereby driving the slewing bracket 414 to rotate. The upper side of the slewing bracket 414 is fixed with the chassis 415 of the roller 423. Bull's-eye bearings are provided around the upper side of the chassis 415 of the roller 423. Brackets 417 are respectively provided at the front and rear ends of the roller 423 on the chassis 415 of the roller 423. Power-free rollers 418 are provided on the brackets 417. The rotation mechanism 41 can rotate the moving container 1 so that it can turn and move between the horizontal conveyor line 21 and the vertical conveyor line 22. The bull's-eye bearings and the power-free rollers 418 are used for assisting the movement after the moving container 1 turns.

[0083] Two bumper strips 45 and two angle sensors 46 are sequentially installed on the four sides of the rotating base 412. The two bumper strips 45 are installed on two adjacent sides of the rotating base 412, and the two angle sensors 46 are installed on the other two adjacent sides of the rotating base 412. A limit block 47 and a detection block 48 are installed on the slewing bracket 414. The limit block 47 and the detection block 48 are on opposite surfaces. When the limit block 47 and the detection block 48 on the slewing bracket 414 rotate back and forth, the limit block 47 contacts the two bumper strips 45 respectively, and the detection block 48 senses the two angle sensors 46 respectively. The angle sensors 46 send signals to the PLC controller, thereby controlling the turntable reduction motor 411 to stop rotating. The limit block 47 prevents further rotation through contact with the bumper strip 45, thereby limiting the rotation angle range of the slewing bracket 414. In this embodiment, the turntable reduction motor 411 drives the driving gear to rotate. The gear rotates and meshes with the external teeth 416, thereby driving the slewing bracket 414 to rotate, and at the same time driving the chassis 415 of the roller 423 to rotate. When the detection block 48 rotates 90 degrees along with the slewing bracket 414 and senses one of the angle sensors 46, this angle sensor 46 can send a signal to the PLC controller, thereby controlling the turntable reduction motor 411 to stop rotating. The limit block 47 prevents further rotation through contact with the bumper strip 45, thereby limiting the rotation angle range of the slewing bracket 414. After the rotation is completed, the second limiting mechanism 43 descends, and the moving container 1 can be transferred to the next conveyor line. The angle sensors 46 are used to control the rotation angle and at the same time control the start and stop of the turntable reduction motor 411 to ensure more accurate docking. The bumper strips 45 are used for limiting.

[0084] The second moving mechanism 42 includes a second conveying seat 421, a second driving motor 422, and a number of rollers 423. The second conveying seat 421 is installed on the upper side of the underframe 415 of the second roller 423. Second baffle plates 424 are installed on both sides of the second conveying seat 421, and the rollers 423 are installed between the second baffle plates 424. A gear is provided at one end of each roller 423, and adjacent gears are connected by a chain. The driving motor is connected to one of the rollers 423 through a chain. The second limiting mechanism 43 includes a third buffer limiter 431, a third hard limiter 432, a fourth buffer limiter 433, and a fourth hard limiter 434. The third buffer limiter 431 and the third hard limiter 432 are located on one side of the underframe 415 of the roller 423, and the fourth buffer limiter 433 and the fourth hard limiter 434 are located on the other side of the underframe 415 of the roller 423. The structures of the first buffer limiter 36, the second buffer limiter 38, the third buffer limiter 431, and the fourth buffer limiter 433 are the same, and the structures of the first hard limiter 37, the second hard limiter 39, the third hard limiter 432, and the fourth hard limiter 434 are the same. The second driving motor 422 can be a servo motor, which drives the roller 423 to rotate forward and backward, thereby driving the moving container 1 to rotate forward and backward, facilitating the movement of the moving container 1 in any direction. The second photoelectric sensor is used to sense whether the moving container 1 is approaching, and then sends a signal to the PLC controller. The PLC controller controls the second driving motor 422 to slow down or stop. The third hard limiter 432 and the fourth hard limiter 434 are also used for rough positioning. After the rotation of the underframe 415 of the roller 423 is completed, it is released to dock with the next conveying line.

[0085] The moving container 1 includes a moving frame 11, a container body 12, an upper automatic opening and closing component, and a lower automatic opening and closing component. Feeding ports and discharging ports are respectively provided on the upper and lower sides of the container body 12. The container body 12 is installed on the upper side of the moving frame 11. A bottom cushion plate 13 is installed on the lower side of the moving frame 11, and a surrounding edge 14 is covered. A buffer stop bar 15 is fixedly provided on the side surface of the surrounding edge 14, and the buffer stop bar 15 has the function of anti-collision and buffering. A pair of third positioning pin seats 16 are also provided at the bottom of the moving frame 11, and the third positioning pin seats 16 are convenient for positioning. A docking installation device 9 is provided on the side surface of the moving frame 11. The moving container 1 can run safely and reliably on the conveying line. At the same time, through the cooperation of the docking installation device 9 and the pneumatic docking with the floating docking mechanism 5, the automatic opening and closing of the valve can be realized, ensuring the tightness and safety during the powder conveying process.

[0086] The feeding port is matched with the upper automatic opening and closing assembly. The upper automatic opening and closing assembly includes an upper cover 181, an upper docking pipe 182, an upper rotary connecting seat, an upper rotary cover plate 184, and an upper wafer type pneumatic butterfly valve 185. The upper cover 181 is connected to the feeding port. The upper wafer type pneumatic butterfly valve 185 is arranged on the upper side of the upper cover 181. The upper docking pipe 182 is installed on the upper side of the upper wafer type pneumatic butterfly valve 185. The upper rotary connecting seat is installed on the side of the upper docking pipe 182. A first rotary cylinder 183 is arranged on the upper rotary connecting seat. The first rotary cylinder 183 drives the upper rotary cover plate 184 to cooperate with the upper side of the upper docking pipe 182 for opening and closing. The discharging port is matched with the lower automatic opening and closing assembly. The lower automatic opening and closing assembly includes a lower cover 191, a lower docking pipe 192, a lower rotary connecting seat 193, a lower rotary cover plate 194, and a lower wafer type pneumatic butterfly valve 195. The lower cover 191 is connected to the discharging port. The lower wafer type pneumatic butterfly valve 195 is arranged on the lower side of the lower cover 191. The lower docking pipe 192 is installed on the lower side of the lower wafer type pneumatic butterfly valve 195. The lower rotary connecting seat 193 is installed on the side of the lower docking pipe 192. A second rotary cylinder is arranged on the lower rotary connecting seat 193. The second rotary cylinder drives the lower rotary cover plate 194 to cooperate with the lower side of the lower docking pipe 192 for opening and closing. The automatic opening and closing of the valve can be realized, manual operation can be reduced, and the efficiency can be improved. The upper surface of the feeding port of the upper docking pipe 182 is flat, which can contact the sealing strip of the docking mechanism at other workstations to ensure the sealing performance. Since the bottom of the moving frame 11 is a flat surface and the whole bottom is covered by a high-strength non-metallic border 14 and a bottom cushion plate 13, it can be conveyed on the conveying line. The conveying line can be a roller 423 line, a chain plate line or other line bodies. The upper wafer type pneumatic butterfly valve 185 and the lower wafer type pneumatic butterfly valve 195 corresponding to the feeding port and the discharging port are respectively controlled to open and close by a PLC, and automatic feeding and discharging operations can be carried out.

[0087] A floating docking mechanism 5 is arranged on one side of each container positioning device 3. The floating docking mechanism 5 includes a mounting frame 51, a lifting device 6, a floating device 7, and a locking device 8. The lifting device 6 is connected to the mounting frame 51. The lifting device 6 is connected to the floating device 7. The lifting device 6 drives the floating device 7 to dock with the docking and mounting device 9, and the floating device 7 and the docking and mounting device 9 are fixed by the locking device 8. The lifting device 6 can drive the floating device 7 to complete the air source inlet and outlet docking with the docking and mounting device 9. After the floating device 7 and the docking and mounting device 9 are fixed and clamped by the locking device 8, the air source sealing docking is completed; the high-precision automatic docking of the air source of the moving container 1 is realized, and the docking is stable and reliable, so as to realize the high-degree automatic feeding of powder when the container moves.

[0088] The lifting device 6 includes a fixed seat 61, a fifth cylinder 62, a lifting seat 63, a sixth cylinder 64 and a sliding seat 65. A pair of slide rails 66 are provided on the front side of the mounting frame 51. Both the lifting seat 63 and the sliding seat 65 are slidably connected to the slide rails 66. The fixed seat 61 is fixedly installed on the top of the mounting frame 51. The fifth cylinder 62 is installed on the fixed seat 61. The piston rod of the fifth cylinder 62 is connected to the lifting seat 63. A pair of sixth cylinders 64 are installed on the lifting seat 63. The piston rods of the sixth cylinders 64 are connected to the sliding seat 65. The fifth cylinder 62 drives the lifting seat 63 and the sliding seat 65 to make a preliminary descent, and then the sixth cylinder 64 drives the sliding seat 65 to accurately control the descent amplitude to complete the precise cooperation of each component. On both sides of the sliding seat 65, seventh cylinders 67 are symmetrically provided, and the seventh cylinders 67 are connected with first positioning pins 68.

[0089] The floating device 7 includes a first floating plate 71, a second floating plate 72, a first ball linear slide rail 73, a second ball linear slide rail 66 and a second positioning pin 75. A pair of first ball linear slide rails 73 are horizontally installed on the upper side of the first floating plate 71. The tops of the first ball linear slide rails 73 are connected to the bottom of the sliding seat 65. A pair of first ball linear slide rails 73 are vertically installed between the first floating plate 71 and the second floating plate 72. There is an activity hole 76 between the first floating plate 71 and the second floating plate 72. First positioning pin seats 77 are provided on both sides of the second floating plate 72. A plurality of air inlets 78 are also provided on the upper part of the second floating plate 72. An air outlet 79 communicated with the air inlets 78 is arranged at the lower part of the second floating plate 72. An O-ring seal is provided between the air outlet 79 and the second floating plate 72. A pair of second positioning pins 75 are symmetrically installed at the lower part of the second floating plate 72. The O-ring seal is designed at the air outlet 79 for effective sealing and leakage prevention. By driving the first positioning pin 68 to retract with the seventh cylinder 67, the first positioning pin 68 is disengaged from the first positioning pin seat 77. At this time, the sixth cylinder 64 can drive the sliding seat 65 to continue to move downward, and the second positioning pin 75 also moves downward. The bottom shape of the second positioning pin 75 is an inclined conical surface. By contacting the second positioning pin 95 with the inclined conical surface, the first floating plate 71 and the second floating plate 72 can move slightly in the X direction and the Y direction. After the second positioning pin 75 completely descends and inserts into the second positioning pin 95, the docking installation device 9 and the floating device 7 are completely aligned to achieve precise docking of the gas source.

[0090] The docking and installation device 9 includes a third base plate 91, a dust-proof component 92, and a pair of docking blocks 93. The third base plate 91 is fixed on the moving frame 11. A pair of docking blocks 93 are installed on the upper side of the third base plate 91. A cavity 94 is provided between the docking blocks 93 on the third base plate 91. The docking blocks 93 are provided with second positioning pins 95 and a number of docking air inlets 96. An air outlet pipe 97 is arranged below the docking air inlet 96, and the other end of the air outlet pipe 97 passes through the bottom of the docking block 93. The dust-proof component 92 is movably installed on the upper side of the third base plate 91. The dust-proof component 92 includes a dust-proof cover plate 921, guide rods 922, a pushing cylinder 923, a nylon protection seat 924, a vacuum generator 925, and a vacuum suction cup 926. The vacuum generator 925 is connected to the vacuum suction cup 926. The dust-proof cover plate 921 is provided with a stainless steel suction plate 927. The guide rods 922 are respectively installed on both sides of the third base plate 91. Guide blocks slidably connected to the guide rods 922 are provided on both sides of the bottom of the dust-proof cover plate 921. The pushing cylinder 923 is installed on the side of the mounting frame 51. The piston rod of the pushing cylinder 923 is connected to the nylon protection seat 924. The vacuum suction cup 926 is provided on the front side of the nylon protection seat 924. The pushing cylinder 923 drives the vacuum suction cup 926 to be connected to the stainless steel suction plate 927, thereby driving the dust-proof cover plate 921 to move and being hermetically matched with the docking block 93. When in use, the dust-proof cover is opened, and when not in use, the dust-proof cover is closed to protect the docking air inlet 96 and keep it clean.

[0091] The locking device 8 includes a clamping cylinder 81, a clamping seat 82, a telescopic block 83, a pair of cams 84, and a pair of connecting rods 85. The connecting rods 85 are respectively fixedly installed on both sides of the bottom of the cavity 94. The top of the clamping cylinder 81 is fixed to the bottom of the sliding seat 65 through a nylon protective sleeve. The clamping seat 82 is installed at the bottom of the second floating plate 72. The bottom of the clamping cylinder 81 passes through the inside of the clamping seat 82 and is connected to the telescopic block 83. One end of a pair of cams 84 is rotatably connected to the inner side of the clamping seat 82. Both sides of the telescopic block 83 are movably connected to the other end of the cam 84. The telescopic block 83 is driven to expand and contract by the clamping cylinder 81, thereby driving the cam 84 to rotate and cooperate with the connecting rod 85 for clamping. During actual gas source docking, the entire docking and installation device 9 is installed on a mobile container and can move with the mobile container. When the mobile container moves to a specified position, the above-mentioned lifting device 6 is used to drive the floating device 7 to complete the gas source inlet and outlet docking with the docking and installation device 9 after it arrives.

[0092] A mobile powder feeding method includes the following steps:

[0093] S1. Manually put the ton bags into the metering storage tank 27 through the large bag feeding mechanism 24 on the third layer of the feeding platform 25, and also put the small bags into the corresponding metering storage tank 27 through the small bag feeding mechanism 23. In this embodiment, four large bag feeding mechanisms 24 are provided, six small bag feeding mechanisms 23 are provided, and ten mixers are provided;

[0094] S2. On the second layer of the feeding platform 25, two moving containers 1 are provided. The moving containers 1 move on the horizontal conveyor line 21. Refer to the appendix Figure 2 In this embodiment, ten metering storage tanks 27 are provided, divided into two rows, respectively provided with metering storage tank D, metering storage tank C, metering storage tank B, metering storage tank X and metering storage tank A. The left moving container 1 is responsible for the feeding, feeding station one, feeding station two, feeding station three, feeding station four and feeding station five of metering storage tank D, metering storage tank C, metering storage tank B, metering storage tank X and metering storage tank A. The right moving container 1 is responsible for the feeding, feeding station six, feeding station seven, feeding station eight, feeding station nine and feeding station ten of metering storage tank A, metering storage tank X, metering storage tank B, metering storage tank C and metering storage tank D. When feeding, the powder pipeline mechanism 10 is used to connect to the feeding port of the moving container 1. The moving container 1 opens the upper wafer type pneumatic butterfly valve 185, and then the material in the metering storage tank 27 is conveyed to the moving container 1 through the metering screw. Each time it moves to the position below the corresponding metering storage tank 27, the moving container 1 is positioned by the container positioning device 3;

[0095] S3. After the moving container 1 finishes receiving materials in sequence, the moving container 1 moves on the horizontal conveyor line 21, rotates when passing through the container rotary docking device 4, and then moves to the longitudinal conveyor line 22 and moves to the feeding station where feeding is required.

[0096] S4. After moving to the corresponding feeding station, the moving container 1 is positioned by the corresponding container positioning device 3. The discharging port of the container is connected to the mixer 26 through the powder pipeline mechanism, and then the lower wafer type pneumatic butterfly valve 195 is opened, so as to be connected to the mixer 26 for feeding;

[0097] S5. After feeding is completed, the moving container 1 moves back to the position below the above-mentioned metering storage tank 27 to receive materials in sequence, and then repeats the above steps in a cycle, and the mixed materials are put into the mixer 26 below another feeding station until all feeding is completed. A departure station and a cleaning station can be designed on the horizontal conveyor line 21. After feeding is completed, the inside of the container body can be cleaned through the cleaning station.

[0098] Through the above feeding method, only one moving container 1 is needed to feed multiple mixers 26, saving site space, and can also be actually expanded according to needs, improving the automation level, avoiding human contact with products, reducing manual operation and standby time, realizing automatic feeding, improving production efficiency, and reducing the labor intensity requirements of personnel.

[0099] The above embodiments are only used to explain the inventive concept of the present invention, rather than limiting the protection scope of the rights of the present invention. Any non-substantive modification made to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A mobile powder feeding device, comprising a PLC controller, at least one small bag feeding mechanism, a large bag feeding mechanism, a metering storage tank, and a mixer, characterized in that: It further includes a feeding platform, a moving container and a conveying mechanism. The moving container receives the materials in the metering storage tank and is conveyed to the mixer through the conveying mechanism for feeding; The moving container includes a moving frame, a container body, an upper automatic opening and closing component and a lower automatic opening and closing component. Feeding ports and discharging ports are respectively arranged on the upper and lower sides of the container body. The container body is installed on the upper side of the moving frame, and a bottom cushion plate is installed on the lower side of the moving frame and is covered with a border. A buffer stop strip is fixedly arranged on the side of the border. The feeding port cooperates with the upper automatic opening and closing component, and the discharging port cooperates with the lower automatic opening and closing component. A pair of third positioning pin seats are also arranged at the bottom of the moving frame, and a docking installation device is arranged on the side of the moving frame; The docking installation device includes a third bottom plate, a dust-proof component and a pair of docking blocks. A pair of docking blocks are installed on the upper side of the third bottom plate. A cavity is arranged on the third bottom plate between the docking blocks. Second positioning pin seats and a number of docking air inlets are arranged on the docking blocks. An air outlet pipe is arranged at the lower part of the docking air inlet, and the other end of the air outlet pipe passes through the bottom of the docking block; The dust-proof component is movably installed on the upper side of the third bottom plate. The dust-proof component includes a dust-proof cover plate, a guide rod, a pushing cylinder, a nylon protection seat, a vacuum generator and a vacuum suction cup. A stainless steel suction plate is arranged on the dust-proof cover plate. The guide rods are respectively installed on both sides of the third bottom plate. Guide blocks slidably connected with the guide rods are arranged on both sides of the bottom of the dust-proof cover plate. The pushing cylinder is installed on the side of the mounting frame, and the piston rod of the pushing cylinder is connected with the nylon protection seat. A vacuum suction cup is arranged on the front side of the nylon protection seat. The pushing cylinder drives the vacuum suction cup to be connected with the stainless steel suction plate, so as to push the dust-proof cover plate to move and be hermetically matched with the docking block; The conveying mechanism includes a container positioning device. A floating docking mechanism is arranged on one side of each container positioning device. The floating docking mechanism includes a mounting frame, a lifting device, a locking device and a floating device. The lifting device is connected to the mounting frame, the lifting device is connected to the floating device, and the lifting device drives the floating device to be docked with the docking installation device and fixes the floating device and the docking installation device through the locking device; The lifting device includes a fixed seat, a fifth cylinder, a lifting seat, a sixth cylinder and a sliding seat. A pair of slide rails are arranged on the front side of the mounting frame. The lifting seat and the sliding seat are both slidably connected to the slide rails. The fixed seat is fixedly installed on the top of the mounting frame. The fifth cylinder is installed on the fixed seat, and the piston rod of the fifth cylinder is connected with the lifting seat. A pair of sixth cylinders are installed on the lifting seat, and the piston rods of the sixth cylinders are connected with the sliding seat. A pair of seventh cylinders are symmetrically arranged on both sides of the sliding seat, and the seventh cylinders are connected with first positioning pins; The floating device comprises a first floating plate, a second floating plate, a first ball linear slide rail, a second ball linear slide rail and a second positioning pin, a pair of second ball linear slide rails are vertically installed between the first floating plate and the second floating plate, a pair of first ball linear slide rails are horizontally installed on the upper side of the first floating plate, the top of the first ball linear slide rail is connected to the bottom of the sliding seat, a movable hole is arranged between the first floating plate and the second floating plate, first positioning pin seats are arranged on both sides of the second floating plate, a plurality of air inlets are also arranged on the upper part of the second floating plate, an air outlet communicated with the air inlet is arranged at the lower part of the second floating plate, an O-ring is arranged between the air outlet and the second floating plate, and a pair of second positioning pins are symmetrically installed at the lower part of the second floating plate; The locking device includes a clamping cylinder, a clamping seat, a telescopic block, a pair of cams and a pair of connecting rods. The connecting rods are fixedly installed on both sides of the bottom of the cavity, the top of the clamping cylinder is fixed to the bottom of the sliding seat through a nylon protective cover, the clamping seat is installed at the bottom of the second floating plate, the bottom of the clamping cylinder passes through the inside of the clamping seat and is connected to the telescopic block, one end of a pair of cams is rotatably connected to the inner side of the clamping seat, and both sides of the telescopic block are movably connected to the other end of the cam. The telescopic block is driven to extend and retract by the clamping cylinder, thereby driving the cam to rotate and cooperate with the connecting rod for clamping.

2. The mobile powder feeding device according to claim 1, wherein: The conveying mechanism includes a transverse conveying line, a longitudinal conveying line and a container rotation docking device. The feeding platform adopts a three-layer structure. The small bag feeding mechanism and the large bag feeding mechanism are installed on the third layer of the feeding platform at even intervals. The metering storage tanks are installed on the second layer of the feeding platform through the metering rack, and each metering storage tank corresponds to the small bag feeding mechanism and the large bag feeding mechanism respectively. There is a transverse conveying line under each row of metering storage tanks, and a container positioning device under each metering storage tank. The transverse conveying line is crossed with the longitudinal conveying line, and a container rotation docking device is installed at the intersection. A mixer is installed on the first layer of the feeding platform, and there is a container positioning device above each mixer.

3. The mobile powder feeding device according to claim 2, characterized in that: The container positioning device includes a first moving mechanism, a first limiting mechanism, a positioner and four pairs of first photoelectric sensors. The first moving mechanism is used to transport the moving container. The four pairs of first photoelectric sensors are evenly installed on the first moving mechanism at intervals. The moving container can be sensed in both forward and reverse directions. The first limiting mechanism is installed between the first moving mechanisms. The moving container is limited by the first limiting mechanism, and then the moving container is positioned by the positioner.

4. A mobile powder feeding device according to claim 3, characterized in that: The first moving mechanism includes a base, a first conveying base, a first driving motor, a long driving shaft and a plurality of rollers. The first conveying base is installed on the upper side of the base, a mounting base is arranged in the middle of the first conveying base, first baffles are installed on both sides of the first conveying base, rollers are respectively connected between both sides of the mounting base and the first baffles, a gear is arranged at one end of each roller, and adjacent gears are connected by a chain, a first driving motor and a long driving shaft are installed at the bottom of the first conveying base, the first driving motor drives the long driving shaft to rotate by a chain, and two ends of the long driving shaft are respectively connected to one of the rollers on both sides of the mounting base by a chain, and weighing sensors are arranged around the upper side of the base, and the weighing sensors are located between the first conveying base and the base.

5. A mobile powder feeding device according to claim 3 or 4, characterized in that: The first limiting mechanism includes a first buffer limiter, a first hard limiter, a second buffer limiter and a second hard limiter. The first buffer limiter and the first hard limiter are located on one side of the mounting base, and the second buffer limiter and the second hard limiter are located on the other side of the mounting base. The first buffer limiter and the second buffer limiter have the same structure, and the first hard limiter and the second hard limiter have the same structure.

6. The mobile powder feeding device according to claim 5, characterized in that: The first buffer limiter includes a first bottom plate, a first mounting block, a first cylinder, a first lifting block and an oil buffer. The first mounting block is connected to the upper side of the first bottom plate. The first cylinder is fixed to the inner bottom of the first mounting block. The upper side of the first mounting block is movably matched with the first lifting block. The first cylinder drives the first lifting block to lift and lower, and the oil buffer is installed on the first lifting block. The second hard limiter includes a second bottom plate, a second mounting block, a second cylinder, a second lifting block, an adjustable screw rod and a striker. The second mounting block is connected to the upper side of the second bottom plate. The second cylinder is fixed to the inner bottom of the second mounting block. The upper side of the second mounting block is movably matched with the second lifting block. The second cylinder drives the second lifting block to lift and lower, and the adjustable screw rod is installed on the second lifting block, and a striker is fixed to one end of the adjustable screw rod.

7. A mobile powder feeding device according to claim 3, characterized in that: The locator is composed of a pair of positioning components and a pair of adjusting components. The adjusting components are parallel to the positioning components. The positioning components include a third cylinder, a movable block and a third positioning pin. The third cylinder is connected to the mounting base. The piston rod on the third cylinder is connected to the movable block. The third positioning pin is installed on the upper side of the movable block, and guide rods are arranged on both sides of the movable block. The adjusting components include a fourth cylinder, an adjusting plate and at least two bull's-eye bearings. The piston rod on the fourth cylinder is connected to the adjusting plate, and the bull's-eye bearings are installed on the adjusting plate.

8. A mobile powder feeding device according to claim 2 or 3, characterized in that: The container rotation docking device includes a rotating mechanism, a second moving mechanism, a second limiting mechanism and four pairs of second photoelectric sensors. The four pairs of second photoelectric sensors are evenly spaced and installed on the second moving mechanism, and can sense the moving container in both forward and reverse directions. The second limiting mechanism is installed between the second moving mechanisms, and the moving container body is limited by the second limiting mechanism, so that the rotating mechanism drives the second moving mechanism to rotate.

9. The mobile powder feeding device according to claim 8, wherein: The rotating mechanism includes a turntable reduction motor, a rotating base, a turntable bearing, a slewing bracket and a roller chassis. The turntable reduction motor is fixed to the rotating base through a motor mounting plate. The bottom of the slewing bracket is connected to the rotating base through the turntable bearing. The outer ring of the turntable bearing is provided with external teeth. A driving gear is connected to the turntable reduction motor. The turntable reduction motor drives the driving gear to mesh with the external teeth, thereby driving the slewing bracket to rotate. The upper side of the slewing bracket is fixed with the roller chassis. Bull's-eye bearings are arranged around the upper side of the roller chassis. Brackets are respectively arranged at the front and rear ends of the roller on the roller chassis, and idler rollers are arranged on the brackets.

10. A mobile powder feeding device according to claim 9, characterized in that: On four sides of the rotating base, two bumper strips and two angle sensors are sequentially installed. The two bumper strips are installed on two adjacent sides of the rotating base, and the two angle sensors are installed on the other two adjacent sides of the rotating base. A limit block and a detection block are installed on the slewing support. On the opposite surfaces of the limit block and the detection block, when the limit block and the detection block on the slewing support rotate back and forth, the limit block contacts the two bumper strips respectively, and the detection block senses the two angle sensors respectively. The angle sensors send signals to the PLC controller, thereby controlling the turntable reduction motor to stop rotating, and the limit block prevents further rotation through contact with the bumper strip, thereby limiting the rotation angle range of the slewing support.

11. A mobile powder feeding device according to claim 8, characterized in that: The second moving mechanism includes a second conveying seat, a second driving motor, and a number of rollers. The second conveying seat is installed on the upper side of the second roller chassis. Second baffles are installed on both sides of the second conveying seat, and rollers are installed between the second baffles. A gear is provided at one end of each roller, and adjacent gears are connected by a chain. The second driving motor is connected to one of the rollers through a chain. The second limiting mechanism includes a third buffer limiter, a third hard limiter, a fourth buffer limiter, and a fourth hard limiter; the third buffer limiter and the third hard limiter are located on one side of the roller chassis, and the fourth buffer limiter and the fourth hard limiter are located on the other side of the roller chassis. The structures of the first buffer limiter, the second buffer limiter, the third buffer limiter, and the fourth buffer limiter are the same, and the structures of the first hard limiter position, the second hard limiter position, the third hard limiter position, and the fourth hard limiter position are the same.

12. The mobile powder feeding device according to claim 1, characterized in that: The upper automatic opening and closing assembly includes an upper cover, an upper docking pipe, an upper rotary connection seat, an upper rotary cover plate, and an upper wafer type pneumatic butterfly valve. The upper cover is connected to the feeding port. An upper wafer type pneumatic butterfly valve is provided on the upper side of the upper cover. The upper docking pipe is installed on the upper side of the upper wafer type pneumatic butterfly valve. An upper rotary connection seat is installed on the side of the upper docking pipe. A first rotary cylinder is provided on the upper rotary connection seat, and the first rotary cylinder drives the upper rotary cover plate to cooperate with the upper side of the upper docking pipe for opening and closing; the lower automatic opening and closing assembly includes a lower cover, a lower docking pipe, a lower rotary connection seat, a lower rotary cover plate, and a lower wafer type pneumatic butterfly valve. The lower cover is connected to the discharging port. A lower wafer type pneumatic butterfly valve is provided on the lower side of the lower cover. The lower docking pipe is installed on the lower side of the lower wafer type pneumatic butterfly valve. A lower rotary connection seat is installed on the side of the lower docking pipe. A second rotary cylinder is provided on the lower rotary connection seat, and the second rotary cylinder drives the lower rotary cover plate to cooperate with the lower side of the lower docking pipe for opening and closing.

13. A mobile powder feeding method using the mobile powder feeding equipment as described in any one of claims 1-12, comprising the following steps: S1. Manually put the ton bags into the metering storage tank through the large bag feeding mechanism on the third layer of the feeding platform, and also put the small bags into the corresponding metering storage tank through the small bag feeding mechanism; S2. The mobile container on the second layer of the feeding platform moves on the horizontal conveyor line, and then moves successively under multiple metering storage tanks to receive materials. When receiving materials, the powder pipeline mechanism is used to connect to the feeding port of the mobile container. The mobile container opens the upper double-flange pneumatic butterfly valve, and then the materials in the metering storage tank are conveyed to the mobile container through the metering screw. Each time it moves under the corresponding metering storage tank, the mobile container is positioned by the container positioning device. S3. After the mobile container has successively received materials, it moves on the horizontal conveyor line, rotates when passing through the container rotary docking device, and then moves on the vertical conveyor line until it is transported above the corresponding mixer. The mobile container is positioned again by the corresponding container positioning device. S4. The discharging port of the mobile container is connected to the mixer through the powder pipeline mechanism, and then the lower double-flange pneumatic butterfly valve is opened to dock with the mixer for feeding. S5. After feeding is completed, the mobile container moves back under the metering storage tank to receive materials successively, and then repeats the cycle according to the above steps to feed the mixed materials into another mixer again.

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