Multi-station crucible loading machine

Abstract

The invention discloses a multi-station crucible loading machine, and relates to the technical field of graphite crucible packing, the multi-station crucible loading machine comprises a rack and a feeding platform mounted at the top of the rack, a feeding pipe is arranged in the middle of the feeding platform in a penetrating manner, the feeding pipe penetrates out of the lower part of the feeding platform and is connected with an eight-cone stock bin, the bottom of the eight-cone stock bin is connected with a discharging pipe, and the discharging pipe is connected with a feeding pipe. The bottom of the discharging pipe is connected with a sealing plate, and a vibration platform is installed below the sealing plate. By arranging the sealing plates and the clamping assemblies, the stability of the crucibles in the filling process is kept in the mode that the hollow clamping blocks clamp the crucibles inside, the problem that the occupied space of outer clamping type clamping is large is solved, the multiple crucibles on the tray can be tightly arranged, and the clamping efficiency is improved. Not only can multi-station crucible filling be carried out, but also a plurality of crucibles can be stably clamped; by arranging the connecting rod and the fixing rod, the hydraulic lifting assembly can drive the clamping assembly to clamp the crucible while driving the eight-cone bin to move downwards for filling, and the linkage effect of moving downwards for filling and clamping the crucible is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of graphite crucible fillers, and particularly to a multi-station crucible loading machine. Background Art

[0002] When graphite materials are used to prepare the anode materials of lithium-ion batteries, the massive or large granular graphite precursors need to be first crushed into powdered particles, and then the powdered particles are loaded into a crucible. The graphite powder is placed in a carbonization furnace or a graphitization furnace together with the crucible for carbonization and graphitization treatment. The process of loading the graphite powder particles into the crucible usually uses a graphite crucible filling machine for automatic filling.

[0003] The existing graphite crucible filling machines usually place the crucible movably on a hydraulic lifting platform, and drive the crucible to rise through the hydraulic lifting platform so that the crucible is docked with the feeding port of the silo for filling. In order to ensure stable filling of the crucible, a clamping assembly is usually installed to clamp the two side walls of the crucible. However, under a silo with a fixed size, the space available for placing the crucible is limited. The clamping process of the clamping assembly requires sufficient moving space, and it is impossible to place multiple crucibles for filling and clamping, resulting in the problem that it is difficult to achieve both multi-station crucible filling and crucible clamping; in addition, in some use scenarios, graphite powder can optimize its own performance through compaction, which can reduce the gap between graphite particles, improve the thermal conductivity uniformity and structural stability, and avoid loosening and collapse of graphite due to thermal expansion and contraction or vibration during heating. However, the existing graphite crucible filling machines do not have the function of compacting the graphite powder filled into the crucible, and can only perform the compaction operation separately after the filling is completed. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-station crucible loading machine to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A multi-station crucible loading machine, including a frame and a feeding platform installed on the top of the frame. A feeding pipe runs through the middle of the feeding platform. The feeding pipe passes out from below the feeding platform and is connected to an eight-cone silo. The bottom of the eight-cone silo is connected to a feeding pipe. The bottom of the feeding pipe is connected to a sealing plate. A vibration platform is installed below the sealing plate. A tray is movably placed on the vibration platform. A crucible is movably placed on the upper surface of the tray. A hydraulic lifting assembly is installed outside the eight-cone silo. An activity pipe is installed inside the sealing plate below the feeding pipe. The number of the activity pipes is eight, and four of them are symmetrically arranged front and back relative to the sealing plate as a group. An activity groove is opened inside the sealing plate between two adjacent activity pipes in the same group. A clamping assembly is installed inside the activity groove; The clamping assembly includes a hollow clamping block penetrating through the sealing plate. A filter screen is installed at the bottom of the hollow clamping block. Rotating shafts are connected to both the front and rear sides of the hollow clamping block. Torsion springs are sleeved on the outer sides of the two rotating shafts. A top block is installed inside the moving slot on one side of the hollow clamping block. A sliding rod penetrates through the top block. A head is connected to the bottom of the sliding rod. A through hole is penetratingly opened inside the sealing plate below the top block.

[0006] Preferably, dust suction holes are penetratingly opened on the inner wall of the feeding pipe. A conical ton bag cutter is installed at the bottom of the inner cavity of the feeding pipe. Dust removal ports are opened on both the left and right side walls of the feeding pipe. The side wall of the feeding pipe is a double-layer wall. A gap exists between the double-layer walls of the feeding pipe to form a dust suction channel. The dust suction channel is communicated with the dust suction holes and the dust removal ports. The dust removal ports are externally connected to a bag filter through pipes.

[0007] Preferably, a stirring rod is installed inside the eight-cone bin. One end of the stirring rod extends out from the side wall of the eight-cone bin and is connected to a stirring motor. The eight-cone bin is communicated with a feeding pipe. A feeding valve is installed on the feeding pipe.

[0008] Preferably, the hydraulic lifting assembly includes a lifting frame installed outside the eight-cone bin. Vertical rods are vertically connected to the middle parts of the inner walls on both the left and right sides of the lifting frame. Guide blocks are sleeved on both the upper and lower ends of the vertical rods. Hydraulic telescopic rods are connected to the four corners at the bottom of the lifting frame. The bottom of the hydraulic telescopic rod is connected to the machine frame. A support rod is installed on the machine frame on one side of the hydraulic telescopic rod.

[0009] Preferably, the lifting frame is in the shape of a rectangular frame. The inner walls on the front and rear sides of the lifting frame are connected to the front and rear side walls of the eight-cone bin. The telescopic end of the hydraulic telescopic rod is connected to the lifting frame. When the hydraulic telescopic rod contracts, the lifting frame rests on the upper surface of the support rod. The number of guide blocks is two, and both guide blocks are installed on the inner wall of the machine frame. The upper and lower ends of the vertical rod penetrate through the guide block and form a sliding connection with the guide block. The vertical rod is slidably connected to the machine frame through the guide block.

[0010] Preferably, a limiting groove is opened inside the sealing plate on the outer side of the movable pipe. A spring is installed inside the limiting groove. A sliding groove is opened inside the sealing plate on one side of the limiting groove. A limiting edge is integrally connected to the outer edge at the top of the movable pipe. A sliding block is connected to one side of the limiting edge. An electric push rod is connected to the upper surface of the sliding block. A pressing plate is installed at the bottom of the movable pipe. A central shaft penetrates through the middle of the pressing plate. A bearing is connected between one end of the central shaft and the side wall of the movable pipe. The other end of the central shaft extends out from the side wall of the movable pipe and is connected to a turning motor. The pressing plate is circular. The pressing plate is rotationally connected to the movable pipe through the central shaft.

[0011] Preferably, the movable tube penetrates through the spring and is inserted into the inside of the sealing plate. The telescopic end of the electric push rod is connected to the slider, and the slider is slidably connected to the chute. The movable tube and the limiting flange are both slidably connected to the sealing plate.

[0012] Preferably, the number of the hollow clamping blocks is sixteen, and two of them form a group and are symmetrically arranged left and right relative to the movable tube. The inside of the hollow clamping block is hollow. The sides of the two hollow clamping blocks in the same group facing away from each other are arc-shaped, and the hollow clamping block contacts the inner wall of the crucible through the arc-shaped surface. The hollow clamping block is rotatably connected to the sealing plate through a rotating shaft.

[0013] Preferably, the top blocks at the left and right edges of the sealing plate are right trapezoids. The two top blocks between two adjacent movable tubes are integrally connected to form an isosceles trapezoid. The hypotenuse of the top block contacts the side wall of the hollow clamping block. The sliding rod penetrates through the top block and is slidably connected to the top block. The end head passes through the through hole and extends out from below the sealing plate.

[0014] Preferably, the number of the sliding rods is ten, and five of them form a group and are symmetrically arranged front and back relative to the sealing plate. The tops of the sliding rods in the same group are commonly connected with a connecting rod. The sliding rods at the left and right edges of the sealing plate are vertically connected with fixed rods at the tops. The connecting rod is bent towards one side at the position corresponding to the movable tube to form a semi-circular ring shape. The end of the fixed rod away from the sliding rod is connected to the support rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this multi-station crucible loading machine, by setting the hydraulic lifting assembly, when filling the crucible with materials, the hydraulic telescopic rod contracts to pull the lifting frame downward. The lifting frame drives the vertical rod to slide downward in the middle of the guiding block to guide the lifting of the lifting frame. At the same time, the lifting frame drives the eight-cone material storage bin downward. The eight-cone material storage bin drives the feeding pipe and the sealing plate to move downward until the movable tube is inserted into the crucible. After the feeding valve in the feeding pipe is opened, materials are filled into the crucible. Relying on the hydraulic lifting assembly to drive the eight-cone material storage bin to descend and dock with the crucible, it changes the traditional way of driving the crucible to rise to receive materials, avoiding the situation of shaking or even tipping over of the crucible during the lifting process.

[0016] 2. In this multi-station crucible loading machine, by setting a sealing plate and a clamping assembly, when the sealing plate moves downward and drives the movable tube to insert into the crucible, the hollow clamping blocks on both left and right sides of the movable tube also insert into the crucible. Moreover, as the sealing plate moves downward relative to the sliding rod, the top block moves downward relative to the sliding rod along with the sealing plate until the end passes through the through hole and presses the lower surface of the top block, and the end pushes the top block upward. When the top block moves upward, the inclined side angle of the top block pushes the hollow clamping block to rotate relative to the sealing plate around the rotating shaft until the arc surface of the hollow clamping block contacts the inner wall of the crucible. At this time, the hollow clamping block rotates from an inclined state to a vertical state, and the crucible is held stably by the way of the hollow clamping block clamping the crucible inside, avoiding the problem that the external clamping method occupies a large space. Multiple crucibles on the tray can be placed closely side by side, and it can not only perform multi-station crucible filling but also stably clamp multiple crucibles.

[0017] 3. In this multi-station crucible loading machine, by setting a connecting rod and a fixed rod, the sliding rod and the frame are kept in a relatively static state through the connection of the fixed rod and the support rod. During the process that the hydraulic lifting assembly drives the eight-cone hopper to move downward, the sealing plate moves downward relative to the sliding rod, and the end pushes the top block upward. When the top block moves upward, it pushes the hollow clamping block to rotate to clamp the crucible, enabling the hydraulic lifting assembly to drive the eight-cone hopper to move downward for filling while also driving the clamping assembly to clamp the crucible, achieving the linkage effect of downward filling and crucible clamping.

[0018] 4. In this multi-station crucible loading machine, by setting a movable tube and a pressing plate, after the graphite powder in the crucible is filled, the feeding valve on the feeding pipe is closed, and the central shaft is driven to rotate by the flipping motor. The central shaft drives the pressing plate to flip 90°, sealing the bottom of the movable tube. Then, the electric push rod extends to push the slider to move downward inside the chute, and the slider drives the movable tube to move downward relative to the sealing plate through the limiting edge, so that the movable tube extends deep into the crucible until the pressing plate presses the surface of the graphite powder, and the graphite powder is compacted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the internal structural schematic diagram of the frame of the present invention; Figure 3 is the front cross-sectional view of the present invention; Figure 4 is the side cross-sectional view of the present invention; Figure 5 is the front cross-sectional view of the sealing plate and the crucible of the present invention; Figure 6 is the structural schematic diagram of the crucible clamping state of the present invention; Figure 7 is the side cross-sectional view of the sealing plate of the present invention; Figure 8 is of the present invention Figure 6 enlarged schematic diagram of the structure of part A; Figure 9 Schematic diagram of the connection structure of two adjacent hollow clamping blocks of the present invention; Figure 10 Schematic diagram of the connection structure of the movable pipe of the present invention.

[0020] In the figure: 1, frame; 2, feeding platform; 3, feeding pipe; 31, dust suction hole; 32, conical ton bag cutter; 33, dust removal port; 4, eight-cone silo; 41, stirring rod; 42, stirring motor; 5, discharging pipe; 51, discharging valve; 6, sealing plate; 61, movable pipe; 611, limiting edge; 612, slider; 613, electric push rod; 614, pressing plate; 615, central axis; 616, bearing; 617, flipping motor; 62, limiting groove; 63, spring; 64, sliding groove; 65, movable groove; 66, clamping assembly; 661, hollow clamping block; 662, filter screen; 663, rotating shaft; 664, torsion spring; 665, top block; 666, through hole; 667, sliding rod; 668, end; 669, connecting rod; 6610, fixed rod; 7, vibrating platform; 8, tray; 9, crucible; 10, hydraulic lifting assembly; 101, lifting frame; 102, vertical rod; 103, guiding block; 104, hydraulic telescopic rod; 105, support rod. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying 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 creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] As Figures 1 to 10 shown, a multi-station crucible loading machine in this embodiment includes a frame 1 and a feeding platform 2 installed on the top of the frame 1. A staircase for the staff to walk is installed on one side of the feeding platform 2, which is convenient for the staff to reach the feeding platform 2. A feeding pipe 3 is disposed through the middle of the feeding platform 2. Since the feeding pipe 3 can be lifted and lowered with the eight-cone bin 4, the outer wall of the feeding pipe 3 is not connected to the feeding platform 2. The feeding pipe 3 passes out from below the feeding platform 2 and is connected to an eight-cone bin 4 for storing graphite powder. A discharging pipe 5 is connected to the bottom of the eight-cone bin 4 for discharging the graphite powder in the eight-cone bin 4. A sealing plate 6 is connected to the bottom of the discharging pipe 5. After the lifting frame 101 drives the sealing plate 6 to move downward, the sealing plate 6 presses on the upper surface of the crucible 9. On the one hand, it is used to squeeze the crucible 9 to stably receive materials on the tray 8, and on the other hand, it seals the crucible 9 to prevent the powder particles from floating upward during the graphite powder filling process and polluting the working environment. The number of discharging pipes 5 is eight, and the eight discharging pipes 5 are commonly connected to the sealing plate 6. A vibrating platform 7 is installed below the sealing plate 6. A vibrating motor is installed at the bottom of the vibrating platform 7 for driving the tray 8 and the crucible 9 placed on the tray 8 to vibrate, so that the graphite powder filled in the crucible 9 vibrates and compacts. The tray 8 is movably placed on the vibrating platform 7, and the crucible 9 is movably placed on the upper surface of the tray 8. The tray 8 is transferred on the vibrating platform 7 by a forklift. A hydraulic lifting assembly 10 is installed outside the eight-cone bin 4. An active pipe 61 is installed inside the sealing plate 6 below the discharging pipe 5. The active pipe 61 is used to both guide the graphite powder falling from the discharging pipe 5 into the crucible 9 and compact the filled crucible 9. The number of active pipes 61 is eight, and four of them are symmetrically arranged in the front and back with respect to the sealing plate 6 as a group. The position of the active pipe 61 corresponds to the position of the crucible 9 placed on the tray 8. This device can fill up to eight crucibles 9 simultaneously. An active slot 65 is opened inside the sealing plate 6 between two adjacent active pipes 61 in the same group. A clamping assembly 66 is installed inside the active slot 65 for clamping the crucible 9 to prevent the crucible 9 from shifting and toppling during the filling process; The clamping assembly 66 includes a hollow clamping block 661 that penetrates through the sealing plate 6. A filter screen 662 is installed at the bottom of the hollow clamping block 661. The hollow clamping block 661 penetrates through the sealing plate 6 within the moving slot 65, that is, the top of the hollow clamping block 661 extends out from the upper surface of the sealing plate 6, and the bottom of the hollow clamping block 661 extends out from the lower surface of the sealing plate 6. When the sealing plate 6 covers the crucible 9 for filling, the inner cavity of the crucible 9 is communicated with the external environment through the hollow clamping block 661, facilitating the exhaust during the filling process of the crucible 9, and the filter screen 662 filters out the graphite powder carried in the exhausted gas, avoiding polluting the working environment. Rotating shafts 663 are connected to both the front and rear sides of the hollow clamping block 661, and torsion springs 664 are sleeved on the outer sides of the two rotating shafts 663. When the hollow clamping block 661 is in an inclined state, the torsion spring 664 is in a normal state. When the top block 665 moves upward to push the hollow clamping block 661 to rotate, the torsion spring 664 generates a restoring force, which is used to push the hollow clamping block 661 to rotate back to its original position when the clamping assembly 66 cancels the clamping of the crucible 9. A top block 665 is installed inside the moving slot 65 on one side of the hollow clamping block 661. A sliding rod 667 penetrates through the top block 665, and the bottom of the sliding rod 667 is connected to an end head 668. A through hole 666 is penetrated and opened inside the sealing plate 6 below the top block 665. The inner diameter size of the through hole 666 is adapted to the inner diameter size of the end head 668, and the end head 668 can move within the through hole 666. A round hole for the sliding rod 667 to pass through is opened on the top block 665, and the outer diameter size of the end head 668 is larger than the inner diameter size of the round hole, facilitating the sliding rod 667 to drive the top block 665 to move through the end head 668.

[0025] Specifically, dust suction holes 31 are penetrated and opened on the inner wall of the feeding pipe 3. The number of dust suction holes 31 is several, and they are arranged at equal circumferential intervals on the inner wall of the feeding pipe 3. A conical ton bag cutter 32 is installed at the bottom of the inner cavity of the feeding pipe 3, with the blade of the conical ton bag cutter 32 facing upward, which is used to break the falling ton bag material so that the material falls into the eight - cone material bin 4. Dust removal ports 33 are opened on both the left and right side walls of the feeding pipe 3. The side wall of the feeding pipe 3 is a double - layer wall, and there is a gap between the double - layer walls of the feeding pipe 3 to form a dust suction channel. The dust suction channel is communicated with the dust suction holes 31 and the dust removal ports 33. The dust removal ports 33 are externally connected to a bag filter through a pipeline. By setting the feeding pipe 3 as a double - layer wall, when the graphite powder enters the eight - cone material bin 4 from the feeding pipe 3, dust is raised. The dust enters the dust suction channel from the dust suction holes 31 and enters the bag filter from the dust removal ports 33, achieving the effect of dust removal for the dust generated during the feeding of graphite powder.

[0026] Further, a stirring rod 41 is installed inside the eight-cone bin 4. One end of the stirring rod 41 extends out from the side wall of the eight-cone bin 4 and is connected to a stirring motor 42. The outer side wall of the stirring rod 41 is connected with V-shaped stirring blades. Observation windows are installed on the front and rear side walls of the eight-cone bin 4. The stirring shaft is driven by the stirring motor 42, and the stirring shaft drives the V-shaped stirring blades to rotate to disperse the graphite powder in the eight-cone bin 4, preventing the graphite powder from forming an arch and affecting the material discharge. The eight-cone bin 4 is communicated with the material discharge pipe 5. A material discharge valve 51 is installed on the material discharge pipe 5. The material discharge valve 51 uses a pneumatic butterfly valve, and the number is eight, which respectively control the interception of the graphite powder in the eight material discharge pipes 5. The eight material discharge pipes 5 can discharge materials simultaneously or separately.

[0027] Further, the hydraulic lifting assembly 10 includes a lifting frame 101 installed outside the eight-cone bin 4. Vertical rods 102 are vertically connected to the middle parts of the inner walls on the left and right sides of the lifting frame 101. Guide blocks 103 are sleeved on the upper and lower ends of the vertical rods 102. Hydraulic telescopic rods 104 are connected to the four corners of the bottom of the lifting frame 101. The number of the hydraulic telescopic rods 104 is four, which are symmetrically arranged relative to the lifting frame 101. The four hydraulic telescopic rods 104 are connected to the same hydraulic pump and oil cylinder to realize synchronous telescoping, and are used to drive the lifting frame 101 to lift and lower. The bottom of the hydraulic telescopic rod 104 is connected to the frame 1. A support rod 105 is installed on the frame 1 on one side of the hydraulic telescopic rod 104, and the support rod 105 is used to support the lifting frame 101 after the lifting frame 101 descends.

[0028] Further, the lifting frame 101 is in the shape of a rectangular frame. The inner walls of the front and rear sides of the lifting frame 101 are connected to the front and rear side walls of the eight-cone bin 4. The telescopic ends of the hydraulic telescopic rods 104 are connected to the lifting frame 101. By contracting the hydraulic telescopic rods 104, the lifting frame 101 is pulled downwards, and the lifting frame 101 drives the eight-cone bin 4 to move downwards. The eight-cone bin 4 drives the material discharge pipe 5 and the sealing plate 6 to move downwards until the movable pipe 61 is inserted into the crucible 9. After the material discharge valve 51 on the material discharge pipe 5 is opened, the crucible 9 is filled with materials. When the hydraulic telescopic rods 104 contract, the lifting frame 101 rests on the upper surface of the support rod 105. Since the downward movement of the lifting frame 101 drives the eight-cone bin 4 to descend, the eight-cone bin 4 is large in volume and stores graphite powder inside, and the support of the support rod 105 can enhance the overall stability of the equipment. The number of the guide blocks 103 is two, and both of the two guide blocks 103 are installed on the inner wall of the frame 1. The upper and lower ends of the vertical rod 102 penetrate through the guide blocks 103 and form a sliding connection with the guide blocks 103. The vertical rod 102 is slidably connected to the frame 1 through the guide blocks 103. During the lifting and lowering process of the lifting frame 101, the lifting and lowering of the vertical rod 102 is guided by the guide blocks 103, so as to maintain the stability of the lifting and lowering of the lifting frame 101.

[0029] Further, a limiting groove 62 is formed inside the sealing plate 6 outside the movable tube 61. A spring 63 is installed inside the limiting groove 62. When the movable tube 61 moves downward relative to the sealing plate 6, the limiting edge 611 is driven to move downward in the limiting groove 62. The limiting edge 611 presses the spring 63 to compress the spring 63. After the movable tube 61 moves upward and resets, the spring 63 rebounds. A sliding groove 64 is formed inside the sealing plate 6 on one side of the limiting groove 62. A limiting edge 611 is integrally connected to the outer edge of the top of the movable tube 61. A slider 612 is connected to one side of the limiting edge 611. An electric push rod 613 is connected to the upper surface of the slider 612. The electric push rod 613 is installed on the sealing plate 6 and is used to push the slider 612 to move downward in the sliding groove 64, so that the movable tube 61 moves downward relative to the sealing plate 6. A pressing plate 614 is installed at the bottom of the movable tube 61. A central shaft 615 is disposed through the middle of the pressing plate 614. A bearing 616 is connected between one end of the central shaft 615 and the side wall of the movable tube 61. The central shaft 615 is rotatably connected to the movable tube 61 through the bearing 616. The other end of the central shaft 615 extends out from the side wall of the movable tube 61 and is connected to a flipping motor 617. The flipping motor 617 is installed on the side wall of the movable tube 61. The pressing plate 614 is circular. The pressing plate 614 is rotatably connected to the movable tube 61 through the central shaft 615. When graphite powder passes through the movable tube 61, the pressing plate 614 is in a vertical state to facilitate the graphite powder to pass through and fill into the crucible 9. When the movable tube 61 compacts the graphite powder filled in the crucible 9, the pressing plate 614 is in a horizontal state and is flush with the bottom of the movable tube 61.

[0030] Further, the movable tube 61 penetrates through the spring 63 and is inserted into the inside of the sealing plate 6. The telescopic end of the electric push rod 613 is connected to the slider 612. The slider 612 forms a sliding connection with the sliding groove 64. The movable tube 61 and the limiting edge 611 both form sliding connections with the sealing plate 6. The electric push rod 613 extends to push the slider 612 to move downward inside the sliding groove 64. The slider 612 drives the movable tube 61 to move downward relative to the sealing plate 6 through the limiting edge 611, so that the movable tube 61 extends deep into the crucible 9 until the pressing plate 614 presses the surface of the graphite powder to compact the graphite powder, reduce the gaps between graphite particles, improve the thermal conductivity uniformity and structural stability, and avoid the situation that the graphite loosens or collapses due to thermal expansion and contraction or vibration during heating.

[0031] Furthermore, the number of the hollow clamping blocks 661 is sixteen, and two of them form a group and are symmetric about the left and right of the movable tube 61. The inside of the hollow clamping block 661 is hollow. The sides of the two hollow clamping blocks 661 in the same group that are far away from each other are arc-shaped, so that when the hollow clamping block 661 contacts the inner wall of the crucible 9, it fits more closely. And the hollow clamping block 661 contacts the inner wall of the crucible 9 through the arc surface. When the crucible 9 is limited by the hollow clamping blocks 661 on both inner walls, it will no longer shift or topple, but it can still vibrate up and down relative to the hollow clamping block 661. The hollow clamping block 661 is rotationally connected to the sealing plate 6 through a rotating shaft 663. The hollow clamping block 661 rotates relative to the sealing plate 6 around the rotating shaft 663 until the arc surface of the hollow clamping block 661 contacts the inner wall of the crucible 9. At this time, the hollow clamping block 661 clamps the crucible 9 inside to maintain the stability of the crucible 9 during the filling process.

[0032] Furthermore, the top blocks 665 at the left and right edges of the sealing plate 6 are right trapezoids. The two top blocks 665 between two adjacent movable tubes 61 are integrally connected to form an isosceles trapezoid. The hypotenuse of the top block 665 contacts the side wall of the hollow clamping block 661. The sliding rod 667 penetrates through the top block 665 and forms a sliding connection with the top block 665. The end 668 passes through the through hole 666 and extends out from below the sealing plate 6. When the sealing plate 6 moves down, it also moves down relative to the sliding rod 667. The top block 665 moves down relative to the sliding rod 667 along with the sealing plate 6 until the end 668 passes through the through hole 666 and presses the lower surface of the top block 665, and the end 668 pushes the top block 665 to move up. When the top block 665 moves up, the included angle of its hypotenuse pushes the hollow clamping block 661 to rotate relative to the sealing plate 6 around the rotating shaft 663.

[0033] Even further, the number of the sliding rods 667 is ten, and five of them form a group and are symmetric about the front and back of the sealing plate 6. The tops of the sliding rods 667 in the same group are jointly connected with a connecting rod 669, so that the multiple sliding rods 667 move synchronously through the connecting rod 669. The tops of the sliding rods 667 at the left and right edges of the sealing plate 6 are vertically connected with fixed rods 6610. The connecting rod 669 is bent towards one side at the position corresponding to the movable tube 61 to form a semi-circular ring to avoid blocking the feeding pipe 5. The end of the fixed rod 6610 away from the sliding rod 667 is connected to the support rod 105. By connecting the fixed rod 6610 with the support rod 105, the sliding rod 667 is kept in a relatively static state with the frame 1, so that when the hydraulic lifting assembly 10 drives the eight-cone bin 4 to move down for filling, it can also drive the clamping assembly 66 to clamp the crucible 9, realizing the linkage effect of moving down for filling and clamping the crucible 9.

[0034] The usage method of this embodiment is as follows: When the user actually uses the multi-station crucible 9 filling machine to fill the crucible 9 with graphite powder, first, the graphite powder ton bag material is put into the feeding pipe 3 through a hoist or the workshop crane. The ton bag material falls and presses on the edge of the conical ton bag cutter 32, and the conical ton bag cutter 32 breaks open the ton bag material, so that the graphite powder falls into the eight-cone bin 4 through the feeding pipe 3. Dust is raised during the falling process of the graphite powder, and the dust enters the dust suction channel from the dust suction hole 31 and finally is discharged into the bag filter for treatment through the dust removal port 33. When preparing to fill the crucible 9, place the eight crucibles 9 on the tray 8, and then the staff uses a forklift to send the tray 8 and the crucible 9 to the vibration platform 7. Then turn on the power supply, and the hydraulic telescopic rod 104 starts to contract. The hydraulic telescopic rod 104 pulls the lifting frame 101 to move downward. The lifting frame 101 drives the vertical rod 102 to slide downward in the middle of the guide block 103 to guide the lifting of the lifting frame 101. At the same time, the lifting frame 101 drives the eight-cone bin 4 to move downward. The eight-cone bin 4 drives the feeding pipe 5 and the sealing plate 6 to move downward until the sealing plate 6 presses on the crucible 9. When the sealing plate 6 moves downward, it drives the movable pipe 61 to insert into the crucible 9. At the same time, the hollow clamping blocks 661 on the left and right sides of the movable pipe 61 also insert into the crucible 9. And because the fixed rod 6610 is connected to the support rod 105, the sealing plate 6 moves downward relative to the sliding rod 667. At this time, the top block 665 moves downward relative to the sliding rod 667 along with the sealing plate 6 until the end 668 passes through the through hole 666 and presses on the lower surface of the top block 665. The end 668 limits and pushes the top block 665 to move upward relative to the sealing plate 6. The inclined side angle of the top block 665 moving upward pushes the hollow clamping block 661 to rotate relative to the sealing plate 6 around the rotating shaft 663, and the torsion spring 664 generates a resilience force until the arc surface of the hollow clamping block 661 contacts the inner wall of the crucible 9. At this time, the hollow clamping block 661 rotates from an inclined state to a vertical state, and the hollow clamping block 661 clamps the crucible 9 inside to maintain the stability of the crucible 9 during the filling process, which can effectively prevent the crucible 9 from shifting and tilting during the filling process. Then control the driving motor to start. The driving motor drives the stirring rod 41 to rotate to stir and disperse the graphite powder in the eight-cone bin 4 to prevent the graphite powder from forming an arch and affecting the feeding. Then open the feeding valve 51. At the same time, the flipping motor 617 starts to drive the central shaft 615 to rotate. The central shaft 615 drives the pressing plate 614 to rotate and open. The graphite powder passes through the movable pipe 61 from the feeding pipe 5 and enters the crucible 9. At the same time, the vibration platform 7 starts to drive the crucible 9 to vibrate, so that the materials inside the crucible 9 vibrate and compact. After the graphite powder filling in the crucible 9 is completed, close the feeding valve 51 on the feeding pipe 5, and the flipping motor 617 drives the central shaft 615 to rotate in the reverse direction. The central shaft 615 drives the pressing plate 614 to flip 90°, sealing the bottom of the movable pipe 61. Then the electric push rod 613 extends to push the slider 612 to move downward inside the chute 64. The slider 612 drives the movable pipe 61 to move downward relative to the sealing plate 6 through the limiting edge 611, and the spring 63 stretches, so that the movable pipe 61 deepens inside the crucible 9 until the pressing plate 614 presses on the surface of the graphite powder.Compact the graphite powder, then the electric push rod 613 pulls the movable tube 61 back to its original position, the hydraulic telescopic rod 104 drives the eight-cone bin 4 and the sealing plate 6 to move up and reset, and then use a forklift to fork out the filled crucible 9.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-station crucible loading machine, comprising a frame (1) and a feeding platform (2) installed on the top of the frame (1), characterized in that: A feeding pipe (3) is arranged through the middle of the feeding platform (2). The feeding pipe (3) passes through from below the feeding platform (2) and is connected to an eight-cone bin (4). The bottom of the eight-cone bin (4) is connected to a blanking pipe (5). The bottom of the blanking pipe (5) is connected to a sealing plate (6). A vibration platform (7) is installed below the sealing plate (6). A tray (8) is movably placed on the vibration platform (7). A crucible (9) is movably placed on the upper surface of the tray (8). A hydraulic lifting assembly (10) is installed outside the eight-cone bin (4). An active pipe (61) is installed inside the sealing plate (6) below the blanking pipe (5). The number of the active pipes (61) is eight, and four of them are symmetrically arranged in the front and back with respect to the sealing plate (6) as a group. An active groove (65) is formed inside the sealing plate (6) between two adjacent active pipes (61) in the same group. A clamping assembly (66) is installed inside the active groove (65). The clamping assembly (66) includes a hollow clamping block (661) penetrating through the sealing plate (6). A filter screen (662) is installed at the bottom of the hollow clamping block (661). Rotating shafts (663) are connected to both the front and rear sides of the hollow clamping block (661). Torsion springs (664) are sleeved outside both of the rotating shafts (663). A top block (665) is installed inside the active groove (65) on one side of the hollow clamping block (661). A sliding rod (667) is arranged through the top block (665). A head (668) is connected to the bottom of the sliding rod (667). A through hole (666) is penetratingly formed inside the sealing plate (6) below the top block (665).

2. The multi-station crucible loading machine according to claim 1, characterized in that: Dust suction holes (31) are penetratingly formed in the inner wall of the feeding pipe (3). A conical ton bag cutter (32) is installed at the bottom of the inner cavity of the feeding pipe (3). Dust removal ports (33) are formed in both the left and right side walls of the feeding pipe (3). The side wall of the feeding pipe (3) is a double-layer wall, and a gap is formed between the double-layer walls of the feeding pipe (3) to form a dust suction channel. The dust suction channel is communicated with the dust suction holes (31) and the dust removal ports (33). The dust removal ports (33) are externally connected to a bag filter through pipes.

3. The multi-station crucible loading machine according to claim 1, characterized in that: A stirring rod (41) is installed inside the eight-cone bin (4). One end of the stirring rod (41) extends out from the side wall of the eight-cone bin (4) and is connected to a stirring motor (42). The eight-cone bin (4) is communicated with the blanking pipe (5). A blanking valve (51) is installed on the blanking pipe (5).

4. The multi-station crucible loading machine according to claim 1, characterized in that: The hydraulic lifting assembly (10) includes a lifting frame (101) installed outside the eight-cone bin (4). Vertical rods (102) are vertically connected to the middle parts of the inner walls on both the left and right sides of the lifting frame (101). Guide blocks (103) are sleeved on both the upper and lower ends of the vertical rods (102). Hydraulic expansion rods (104) are connected to the four corners at the bottom of the lifting frame (101). The bottoms of the hydraulic expansion rods (104) are connected to the frame (1). A support rod (105) is installed on the frame (1) on one side of the hydraulic expansion rod (104).

5. The multi-station crucible loading machine according to claim 4, wherein: The lifting frame (101) is in the shape of a rectangular frame. The inner walls of the front and rear sides of the lifting frame (101) are connected to the front and rear side walls of the eight-cone silo (4). The telescopic end of the hydraulic telescopic rod (104) is connected to the lifting frame (101). When the hydraulic telescopic rod (104) contracts, the lifting frame (101) rests on the upper surface of the support rod (105). The number of guide blocks (103) is two, and both guide blocks (103) are installed on the inner wall of the frame (1). The upper and lower ends of the vertical rod (102) pass through the guide blocks (103) and form a sliding connection with the guide blocks (103). The vertical rod (102) is slidably connected to the frame (1) through the guide blocks (103).

6. The multi-station crucible loading machine according to claim 1, characterized in that: A limiting groove (62) is formed inside the sealing plate (6) on the outer side of the movable pipe (61). A spring (63) is installed inside the limiting groove (62). A sliding groove (64) is formed inside the sealing plate (6) on one side of the limiting groove (62). A limiting edge (611) is integrally connected to the outer edge of the top of the movable pipe (61). A slider (612) is connected to one side of the limiting edge (611). An electric push rod (613) is connected to the upper surface of the slider (612). A pressing plate (614) is installed at the bottom of the movable pipe (61). A central shaft (615) is disposed through the middle of the pressing plate (614). A bearing (616) is connected between one end of the central shaft (615) and the side wall of the movable pipe (61). The other end of the central shaft (615) extends out from the side wall of the movable pipe (61) and is connected to a turning motor (617). The pressing plate (614) is circular, and the pressing plate (614) is rotatably connected to the movable pipe (61) through the central shaft (615).

7. The multi-station crucible loading machine according to claim 6, characterized in that: The movable pipe (61) passes through the spring (63) and is inserted into the sealing plate (6). The telescopic end of the electric push rod (613) is connected to the slider (612). The slider (612) forms a sliding connection with the sliding groove (64). The movable pipe (61) and the limiting edge (611) are both slidably connected to the sealing plate (6).

8. The multi-station crucible loading machine according to claim 1, characterized in that: The number of the hollow clamping blocks (661) is sixteen, and two of them form a group and are symmetrically arranged on the left and right sides of the movable pipe (61). The inside of the hollow clamping block (661) is hollow. The mutually remote sides of the two hollow clamping blocks (661) in the same group are arc-shaped, and the hollow clamping block (661) contacts the inner wall of the crucible (9) through the arc-shaped surface. The hollow clamping block (661) is rotatably connected to the sealing plate (6) through a rotating shaft (663).

9. The multi-station crucible loading machine according to claim 1, characterized in that: The top blocks (665) at the left and right edges of the sealing plate (6) are in the shape of a right trapezoid. The two top blocks (665) between two adjacent movable pipes (61) are integrally connected to form an isosceles trapezoid. The hypotenuse of the top block (665) contacts the side wall of the hollow clamping block (661). The sliding rod (667) passes through the top block (665) and forms a sliding connection with the top block (665). The end head (668) passes through the through hole (666) and extends out from below the sealing plate (6).

10. The multi-station crucible loading machine according to claim 4, characterized in that: The number of the sliding rods (667) is ten, and five of them are arranged in a group and symmetrically arranged front and back with respect to the sealing plate (6). The tops of the sliding rods (667) in the same group are commonly connected with a connecting rod (669). The tops of the sliding rods (667) at the left and right edges of the sealing plate (6) are vertically connected with fixing rods (6610). The connecting rod (669) is bent towards one side to form a semi-circular ring at a position corresponding to the movable tube (61). One end of the fixing rod (6610) far away from the sliding rod (667) is connected with the support rod (105).

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