Graphite filling device

Abstract

The invention discloses a graphite filling device. The graphite filling device comprises a powder bin used for storing powder, a feeder used for conveying the powder in the powder bin, a feeding switching device, a hanging bracket used for installing the feeding switching device, a first feeding pipe, a second feeding pipe and a third feeding pipe, the feeder is installed at a discharging port of the powder bin, the hanging bracket is installed on the powder bin, and the first feeding pipe, the second feeding pipe and the third feeding pipe are arranged on the hanging bracket. The first feeding pipe, the second feeding pipe and the third feeding pipe are installed on the feeding switching device, the feeding switching device comprises a material box with a first discharging port, a second discharging port and a third discharging port, a first valve plate, a second valve plate, a shaft rod and a switching driver, the feeder is connected with the material box, the first valve plate and the second valve plate are connected with the shaft rod through connecting rods, and the switching driver is connected with the first valve plate and the second valve plate. The feeder is connected with the material box, and the switching driver is installed on the material box. According to the graphite filling device, the feeding pipes can be selected for feeding according to requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of graphite embryo firing, and particularly to a graphite filling device. Background Art

[0002] For graphite embryo firing, the powder in the powder bin needs to be filled into the graphite embryo box first, and then the graphite embryo box is removed by a trolley. Since the discharge port of the powder bin is fixed, only after the previous graphite embryo box is removed can the next graphite embryo box be filled. At the same time, the trolley needs a certain amount of time to vacate the loading position when hoisting the graphite embryo box, thus reducing the filling efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a graphite filling device that can send powder into the corresponding graphite embryo box according to requirements.

[0004] To solve the above problems, the present invention provides a graphite filling device, which includes a powder bin for storing powder, a feeder for conveying the powder in the powder bin, a feeding switching device for switching the powder feeding position, a hanger for installing the feeding switching device, and a first feeding pipe, a second feeding pipe and a third feeding pipe for feeding powder to the corresponding graphite embryo box. The powder bin has a discharge port, the feeder is installed at the discharge port of the powder bin, the hanger is installed on the powder bin, the first feeding pipe, the second feeding pipe and the third feeding pipe are installed on the feeding switching device. The feeding switching device includes a box with a first discharge port, a second discharge port and a third discharge port, a first valve plate and a second valve plate for opening or closing the first discharge port, the second discharge port or the third discharge port, a shaft rod for driving the first valve plate and the second valve plate to rotate synchronously, and a switching driver for driving the shaft rod to rotate. The first valve plate and the second valve plate are connected to the shaft rod through a connecting rod. The first feeding pipe is installed at the first discharge port, the second feeding pipe is installed at the second discharge port, the third feeding pipe is installed at the third discharge port. The feeder is connected to the box, the switching driver is installed on the box, and the distance between the first valve plate and the second valve plate is greater than the diameter of the second discharge port and less than the minimum distance between the first discharge port and the third discharge port.

[0005] Further, the feeding switching device further includes a connecting pipe for connecting with the feeder, and the connecting pipe is arranged on the box.

[0006] Further, it further includes a telescopic dust cover for dust prevention and a telescopic driving mechanism for the telescopic dust cover for pulling up or down. The first feeding pipe, the second feeding pipe, and the third feeding pipe are all correspondingly provided with a telescopic dust cover and a telescopic driving mechanism. The telescopic dust cover is installed on the corresponding first feeding pipe, second feeding pipe, and third feeding pipe, and the telescopic driving mechanism is installed on the hanger.

[0007] Further, the telescopic driving mechanism includes a traction rope for pulling up or down the telescopic dust cover, a pulley for winding or releasing the traction rope, and a telescopic driver for driving the pulley to rotate. The telescopic driver is installed on the hanger. The telescopic driver has two coaxial output ends, and the two pulleys are installed on the output ends. One end of the traction rope is fixed on the pulley, and the other end of the traction rope is connected to the lower end of the telescopic dust cover.

[0008] Further, the telescopic driving mechanism further includes a guide pulley for changing the direction of the traction rope, a rotating shaft for installing the guide pulley, and a mounting plate for installing the rotating shaft. The mounting plate is installed on the hanger. There are two guide pulleys. One end of the traction rope is fixed on the pulley, and the other end of the traction rope passes around the guide pulley and then is connected to the lower end of the telescopic dust cover.

[0009] Further, the first feeding pipe includes a first guiding pipe for guiding the powder material above the corresponding graphite blank box and a first mounting pipe for installing the telescopic dust cover. The upper end of the first guiding pipe is connected to the material box of the feeding switching device, and the middle part of the first guiding pipe is connected to the first mounting pipe. Two symmetrical through holes are provided on the first mounting pipe for two traction ropes to pass through.

[0010] Further, the second feeding pipe includes a second guiding pipe for guiding the powder material above the corresponding graphite blank box and a second mounting pipe for installing the telescopic dust cover. The upper end of the second guiding pipe is connected to the material box of the feeding switching device, and the middle part of the second guiding pipe is connected to the second mounting pipe. Two symmetrical through holes are provided on the second mounting pipe for two traction ropes to pass through.

[0011] Further, the third feeding pipe includes a third guiding pipe for guiding the powder material above the corresponding graphite blank box and a third mounting pipe for installing the telescopic dust cover. The upper end of the third guiding pipe is connected to the material box of the feeding switching device, and the middle part of the third guiding pipe is connected to the third mounting pipe.

[0012] Further, two symmetrical through holes are provided on the third mounting pipe for two traction ropes to pass through.

[0013] Further, it further includes a negative pressure dust suction pipe for dust suction, and negative pressure dust suction pipes are connected to the first feeding pipe, the second feeding pipe, and the third feeding pipe.

[0014] When the graphite packing device of the present invention needs to switch the feeding, only need to switch the driver to drive the first valve plate and the second valve plate to rotate, then the first feeding pipe, the second feeding pipe or the third feeding pipe can be selected for feeding according to the needs. Changing the feeding position is convenient and fast, and during the switching process, only the first valve plate and the second valve plate need to rotate, and the first valve plate and the second valve plate are located in the material box, which will not affect the outside and does not need to be switched by swinging, improving the safety. Brief Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a preferred embodiment of the graphite packing device of the present invention.

[0016] Figure 2 It is a schematic structural diagram of the feeding switching device.

[0017] Figure 3 It is a schematic structural diagram of the telescopic drive mechanism.

[0018] Figure 4 It is a schematic structural diagram of the first feeding pipe.

[0019] Figure 5 It is a schematic structural diagram of the second feeding pipe.

[0020] Figure 6 It is a schematic structural diagram of the third feeding pipe.

[0021] The meanings of the reference numerals in the drawings are as follows:

[0022] Powder bin 11, hanger 12, feeder 2, feeding switching device 3, material box 31, switching driver 32, shaft rod 33, first valve plate 34, second valve plate 35, connecting pipe 36, connecting rod 37, first feeding pipe 41, first guide pipe 411, first installation pipe 412, second feeding pipe 42, second guide pipe 421, second installation pipe 422, third feeding pipe 43, third guide pipe 431, third installation pipe 432, perforation 441, telescopic dust-proof cover 5, telescopic drive mechanism 6, telescopic driver 61, traction rope 62, mounting plate 63, rotating shaft 64, pulley 65, reversing wheel 66, negative pressure dust suction pipe 7. Detailed Embodiments

[0023] The present invention will be further described below with reference to the drawings.

[0024] As Figure 1 and Figure 2As shown in the figure, a preferred embodiment of the graphite packing device of the present invention includes a powder bin 11, a hanging bracket 12, a feeder 2, a feeding switching device 3, a first feeding pipe 41, a second feeding pipe 42, a third feeding pipe 43, a telescopic dust-proof cover 5, a telescopic driving mechanism 6 and a negative pressure dust suction pipe 7. The powder bin 11 is used for storing the powder for firing graphite blanks. An outlet is provided at the lower end of the powder bin 11 for discharging the powder in the powder bin 11. The inlet of the feeder 2 is connected to the outlet of the powder bin 11, and the outlet of the feeder 2 is connected to the feeding switching device 3. In this way, the feeder 2 can send the powder in the powder bin 11 into the feeding switching device 3. The hanging bracket 12 is installed on the powder bin 11, and the feeding switching device 3 is fixed on the hanging bracket 12. The first feeding pipe 41, the second feeding pipe 42 and the third feeding pipe 43 are all connected to the feeding switching device 3. The feeding switching device 3 is used to send the powder into the first feeding pipe 41, the second feeding pipe 42 or the third feeding pipe 43 according to requirements. The first feeding pipe 41, the second feeding pipe 42 and the third feeding pipe 43 are all used to send materials into the corresponding graphite blank boxes 31. The telescopic dust-proof covers 5 are installed on the first feeding pipe 41, the second feeding pipe 42 and the third feeding pipe 43. The telescopic dust-proof covers 5 are used to gather the powder and discharge it into the graphite blank box 31. By using the telescopic dust-proof covers 5, the position of the powder discharge can be lowered into the graphite blank box 31, that is, the telescopic dust-proof covers 5 reduce the height difference of the powder from the outlet to the inside of the graphite blank box 31, and can reduce the generation of dust. The first feeding pipe 41, the second feeding pipe 42 and the third feeding pipe 43 are all correspondingly provided with telescopic driving mechanisms 6. The telescopic driving mechanisms 6 are installed on the hanging bracket 12, and the telescopic driving mechanisms 6 are used to drive the telescopic dust-proof covers 5 to expand and contract. The negative pressure dust suction pipes 7 are installed on the first feeding pipe 41, the second feeding pipe 42 and the third feeding pipe 43. The negative pressure dust suction pipes 7 are used to suck the dust floating in the telescopic dust-proof covers 5 after the feeding is completed.

[0025] The feeding switching device 3 includes a feed bin 31, a switching driver 32, a shaft 33, a first valve plate 34, a second valve plate 35 and a connecting pipe 36. The connecting pipe 36 is arranged at the top of the feed bin 31 and is used to connect with the feeder 2. The connecting pipe 36 receives the powder delivered by the feeder 2 and guides it into the feed bin 31. The feed bin 31 is provided with a first discharge port, a second discharge port and a third discharge port. The powder in the feed bin 31 is discharged through the first discharge port, the second discharge port and the third discharge port. The first discharge port, the second discharge port and the third discharge port are evenly distributed on the feed bin 31. The first feed pipe 41 is installed at the first discharge port, the second feed pipe 42 is installed at the second discharge port, and the third feed pipe 43 is installed at the third discharge port. The switching driver 32 is installed on the outer wall of the feed bin 31. The output end of the switching driver 32 is fixed to the shaft 33. The shaft 33 is rotatably arranged in the feed bin 31. The switching driver 32 is used to drive the shaft 33 to rotate. The first valve plate 34 and the second valve plate 35 are both fixed to the shaft 33 through a connecting rod 37. The first valve plate 34 and the second valve plate 35 are both used to close the first discharge port, the second discharge port or the third discharge port. The first valve plate 34 and the second valve plate 35 are arranged at intervals, and the distance between the first valve plate 34 and the second valve plate 35 is greater than the diameter of the second discharge port and less than the minimum distance between the first discharge port and the third discharge port. In this way, the first valve plate 34 and the second valve plate 35 can only close two of the first discharge port, the second discharge port or the third discharge port, ensuring that only the first discharge port, the second discharge port or the third discharge port can feed the material during feeding, so as to feed the powder into the corresponding first feed pipe 41, second feed pipe 42 or third feed pipe 43. Specifically, when the first valve plate 34 closes the first discharge port and the second valve plate 35 closes the third discharge port, the second discharge port is opened. When the first valve plate 34 closes the first discharge port and the second discharge port, the third discharge port is opened, that is, the second valve plate 35 does not close any discharge port. When the second valve plate 35 closes the second discharge port and the third discharge port, the first valve plate 34 can simultaneously close the first discharge port and the second discharge port, and the second discharge port and the third discharge port.

[0026] Such as Figure 3As shown, the telescopic drive mechanism 6 corresponding to the second feeding pipe 42 includes a telescopic driver 61, a traction rope 62, a mounting plate 63, a rotating shaft 64, a pulley 65 and a reversing pulley 66. The telescopic driver 61 is mounted on the hanging bracket 12. The telescopic driver 61 has two coaxial output ends, and pulleys 65 are mounted on the output ends of the telescopic driver 61. The telescopic driver 61 is used to drive the pulley 65 to rotate. A rotating shaft 64 is provided on the mounting plate 63, and reversing pulleys 66 are provided at both ends of the rotating shaft 64. Each pulley 65 on the telescopic driver is fixed with a traction rope 62, that is, there are two traction ropes 62. One end of each traction rope 62 is fixed to the corresponding pulley 65. The pulley 65 is used to tighten or release the traction rope 62. The other end of the traction rope 62 is fixed to the telescopic dust cover 5 after passing around the reversing pulley 66. The traction rope 62 is used to pull up or lower the telescopic dust cover 5, so that the telescopic dust cover 5 stretches or contracts. The telescopic driver 61 drives the pulley 65 to rotate. The pulley 65 rotates to tighten or release the traction rope 62. The traction rope 62 pulls up or lowers the telescopic dust cover 5. When the telescopic dust cover 5 is pulled up by the traction rope 62, it folds. When the telescopic dust cover 5 is lowered by the traction rope 62, it stretches. That is, when the telescopic dust cover 5 is stretched, the lower end of the telescopic dust cover 5 will fall into the graphite blank box 31, and at this time, the graphite blank can be filled. The telescopic drive mechanism 6 is provided to continuously adjust the length of the telescopic dust cover 5 during the process of filling the graphite blank, so that the height difference between the lower end of the telescopic dust cover 5 and the powder in the graphite blank box 31 is kept at a small distance, so as to reduce the generation of dust. There are two traction ropes 62, which is convenient for smoothly pulling the telescopic dust cover 5. The telescopic drive mechanism 6 is a double-end motor. The telescopic dust cover 5 uses a corrugated telescopic dust cover for dust use, and its structure is a conventional existing technology, which will not be elaborated here. The telescopic drive mechanisms 6 corresponding to the first feeding pipe 41 and the third feeding pipe 43 do not have the mounting plate 63, the rotating shaft 64, the pulley 65 and the reversing pulley 66, and the other end of the traction rope 62 is directly connected to the telescopic dust cover 5.

[0027] As Figure 4As shown in the figure, the first feeding pipe includes a first guiding pipe 411 and a first mounting pipe 412. The first guiding pipe 411 is used to guide the powder material above the corresponding graphite blank box 31. The upper end of the first guiding pipe 411 is connected to the material box 31 of the feeding switching device 3, that is, the upper end of the first guiding pipe 411 is installed at the first discharging port, and the lower end of the first guiding pipe 411 is connected to the first mounting pipe 412. The first mounting pipe 412 is used to install the telescopic dust-proof cover 5 and the negative-pressure dust suction pipe 7. The upper end of the first mounting pipe 412 is connected to the negative-pressure dust suction pipe 7. The middle part of the first guiding pipe 411 is connected to the first mounting pipe 412. The lower end of the first mounting pipe 412 is connected to the telescopic dust-proof cover 5. The first mounting pipe 412 is vertically arranged. The powder material enters the first mounting pipe 412 from the first guiding pipe 411 and then drops downward along the first mounting pipe 412. The setting of the first mounting pipe 412 facilitates the installation of the telescopic dust-proof cover 5 and the negative-pressure dust suction pipe 7. Two symmetrical perforations 441 are arranged on the first mounting pipe 412. The two perforations 441 are used for two traction ropes 62 to pass through, that is, each traction rope 62 is fixed to the lower end of the telescopic dust-proof cover 5 after passing through the perforation 441, which can prevent the traction ropes 62 from being exposed.

[0028] As Figure 5 shown in the figure, the second feeding pipe includes a second guiding pipe 421 and a second mounting pipe 422. The second guiding pipe 421 is used to guide the powder material above the corresponding graphite blank box 31. The upper end of the second guiding pipe 421 is connected to the material box 31 of the feeding switching device 3, that is, the upper end of the second guiding pipe 421 is installed at the second discharging port, and the lower end of the second guiding pipe 421 is connected to the second mounting pipe 422. The second mounting pipe 422 is used to install the telescopic dust-proof cover 5 and the negative-pressure dust suction pipe 7. The upper end of the second mounting pipe 422 is connected to the negative-pressure dust suction pipe 7. The middle part of the second guiding pipe 421 is connected to the second mounting pipe 422. The lower end of the second mounting pipe 422 is connected to the telescopic dust-proof cover 5. The second mounting pipe 422 is vertically arranged. The powder material enters the second mounting pipe 422 from the second guiding pipe 421 and then drops downward along the second mounting pipe 422. The setting of the second mounting pipe 422 facilitates the installation of the telescopic dust-proof cover 5 and the negative-pressure dust suction pipe 7. Two symmetrical perforations 441 are arranged on the second mounting pipe 422. The two perforations 441 are used for two traction ropes 62 to pass through, that is, each traction rope 62 is fixed to the lower end of the telescopic dust-proof cover 5 after passing through the perforation 441, which can prevent the traction ropes 62 from being exposed.

[0029] As Figure 6As shown, the third feeding pipe includes a third guiding pipe 431 and a third mounting pipe 432. The third guiding pipe 431 is used to guide the powder material above the corresponding graphite blank box 31. The upper end of the third guiding pipe 431 is connected to the material box 31 of the feeding switching device 3, that is, the upper end of the third guiding pipe 431 is installed at the third discharging port, and the lower end of the third guiding pipe 431 is connected to the third mounting pipe 432. The third mounting pipe 432 is used to install the telescopic dust-proof cover 5 and the negative pressure dust suction pipe 7. The upper end of the third mounting pipe 432 is connected to the negative pressure dust suction pipe 7. The middle part of the third guiding pipe 431 is connected to the third mounting pipe. The lower end of the third mounting pipe 432 is connected to the telescopic dust-proof cover 5, and the third mounting pipe 432 is arranged vertically. The powder material enters the third mounting pipe 432 from the third guiding pipe 431 and then drops downward along the third mounting pipe 432. The third mounting pipe 432 is provided to facilitate the installation of the telescopic dust-proof cover 5 and the negative pressure dust suction pipe 7. Two symmetrical perforations 441 are provided on the third mounting pipe 432. The two perforations 441 are used for two traction ropes 62 to pass through. That is, each traction rope 62 passes through the perforation 441 and is fixed to the lower end of the telescopic dust-proof cover 5, which can prevent the traction ropes 62 from being exposed.

[0030] When the first feeding pipe 41 needs to feed, the switching driver 32 drives the shaft rod 33 to rotate. The rotation of the shaft rod 33 drives the first valve plate 34 and the second valve plate 35 to rotate, so that the second valve plate 35 closes the second discharging port and the third discharging port. The telescopic driver 61 of the telescopic driving mechanism 6 corresponding to the first feeding pipe 41 drives the pulley 65 to rotate, and the pulley 65 releases the traction rope 62, so that the lower part of the telescopic dust-proof cover 5 falls into the corresponding graphite blank box 31. During the filling process, the telescopic driver 61 rotates in the reverse direction, driving the pulley 65 to rotate in the reverse direction to wind up the traction rope 62, so that the rear end of the traction rope 62 is pulled up, gradually or step by step folding up the telescopic dust-proof cover 5 until the graphite blank box 31 is filled. At this time, the telescopic dust-proof cover 5 is just folded up. After the filling is completed, the negative pressure dust suction pipe 7 starts to suck the dust in the telescopic dust-proof cover 5 and the first feeding pipe 41 under negative pressure.

[0031] When the second feed pipe 42 is required for feeding, the switching driver 32 drives the shaft rod 33 to rotate. The rotation of the shaft rod 33 drives the first valve plate 34 and the second valve plate 35 to rotate, so that the first valve plate 34 closes the first discharge port, and at the same time the second valve plate 35 closes the third discharge port. The telescopic driver 61 of the telescopic drive mechanism 6 corresponding to the second feed pipe 42 drives the pulley 65 to rotate, and the pulley 65 releases the traction rope 62, so that the corresponding graphite blank box 31 falls below the telescopic dust cover 5. During the filling process, the telescopic driver 61 rotates in the reverse direction, driving the pulley 65 to rotate in the reverse direction to wind up the traction rope 62, so that the rear end of the traction rope 62 is pulled up, gradually or step by step folding the telescopic dust cover 5 until the graphite blank box 31 is filled. At this time, the telescopic dust cover 5 is just folded. After the filling is completed, the negative pressure suction pipe 7 starts to suck the dust in the telescopic dust cover 5 and the second feed pipe 42 by negative pressure.

[0032] When the third feed pipe 43 is required for feeding, the switching driver 32 drives the shaft rod 33 to rotate. The rotation of the shaft rod 33 drives the first valve plate 34 and the second valve plate 35 to rotate, so that the first valve plate 34 closes the first discharge port and the second discharge port. The telescopic driver 61 of the telescopic drive mechanism 6 corresponding to the third feed pipe 43 drives the pulley 65 to rotate, and the pulley 65 releases the traction rope 62, so that the corresponding graphite blank box 31 falls below the telescopic dust cover 5. During the filling process, the telescopic driver 61 rotates in the reverse direction, driving the pulley 65 to rotate in the reverse direction to wind up the traction rope 62, so that the rear end of the traction rope 62 is pulled up, gradually or step by step folding the telescopic dust cover 5 until the graphite blank box 31 is filled. At this time, the telescopic dust cover 5 is just folded. After the filling is completed, the negative pressure suction pipe 7 starts to suck the dust in the telescopic dust cover 5 and the third feed pipe 43 by negative pressure.

[0033] When the feed needs to be switched, only the switching driver 32 needs to drive the first valve plate 34 and the second valve plate 35 to rotate, and the first feed pipe 41, the second feed pipe 42 or the third feed pipe 43 can be selected for feeding according to the needs. Changing the feeding position is convenient and fast. During the switching process, only the first valve plate 34 and the second valve plate 35 need to rotate, and the first valve plate 34 and the second valve plate 35 are located in the material box 31, which will not affect the outside and does not need to be switched by swinging, improving the safety.

[0034] The above is only the embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made by using the specification and drawings of the present invention, directly or indirectly applied to other related technical fields, is equally within the patent protection scope of the present invention.

Claims

1. A graphite packing device, characterized in that: The invention comprises a powder bin for storing powder, a feeder for conveying powder in the powder bin, a feeding switching device for switching the feeding position of powder, a hanger for installing the feeding switching device, and a first feeding pipe, a second feeding pipe and a third feeding pipe for feeding powder to a corresponding graphite blank box, wherein the powder bin has a discharge port, the feeder is installed at the discharge port of the powder bin, the hanger is installed on the powder bin, the first feeding pipe, the second feeding pipe and the third feeding pipe are installed on the feeding switching device, the feeding switching device comprises a material box having a first discharge port, a second discharge port and a third discharge port, a first discharge port for opening or closing the first discharge port, a second discharge port for opening or closing the second discharge port, a third ... and closing the third discharge port, a third discharge port for opening and closing the first discharge port, a second discharge port for opening and closing the third discharge port, a third feed pipe for feeding powder to a corresponding graphite blank box, the powder bin has a discharge port, the feeder is installed at the discharge port of the powder bin, the hanger is installed on the powder bin, the first feeding pipe, the second feeding pipe and the third feeding pipe are installed on the feeding switching device, the feeding switching device comprises a material box having a first discharge port, a second discharge port and a third discharge port, a first discharge port for opening or closing the first discharge port, a second discharge port for opening and closing the third discharge port, a second discharge port for opening and closing the third discharge port, a second discharge port for opening and closing the third discharge port, a second discharge port for opening and closing the third discharge port, a second discharge port for opening and closing the third discharge port, a second discharge port for opening and closing the third discharge port, a second discharge port for opening and closing the third discharge port, a second discharge port for opening and closing the A first valve plate and a second valve plate at a discharge port, a second discharge port or a third discharge port, a shaft rod for driving the first valve plate and the second valve plate to rotate synchronously, and a switching driver for driving the shaft rod to rotate, the first valve plate and the second valve plate are connected to the shaft rod through a connecting rod, the first feed pipe is installed at the first discharge port, the second feed pipe is installed at the second discharge port, the third feed pipe is installed at the third discharge port, the feeder is connected to the material box, the switching driver is installed on the material box, the spacing between the first valve plate and the second valve plate is greater than the diameter of the second discharge port and smaller than the minimum distance between the first discharge port and the third discharge port.

2. The graphite packing device according to claim 1, characterized in that: The feeding switching device also includes a connecting pipe for connecting with the feeder, and the connecting pipe is arranged on the material box.

3. The graphite packing device according to claim 1, characterized in that: It also includes a telescopic dust cover for dust prevention and a telescopic driving mechanism for pulling up or lowering the telescopic dust cover. The first feeding tube, the second feeding tube and the third feeding tube are each correspondingly provided with a telescopic dust cover and a telescopic driving mechanism. The telescopic dust cover is installed on the corresponding first feeding tube, the second feeding tube and the third feeding tube, and the telescopic driving mechanism is installed on the hanger.

4. The graphite packing device according to claim 3, characterized in that: The telescopic drive mechanism includes a traction rope for pulling up or lowering the telescopic dust cover, a pulley for winding or releasing the traction rope, and a telescopic driver for driving the pulley to rotate. The telescopic driver is installed on a hanger. The telescopic driver has two coaxial output ends, two pulleys are installed on the output ends, and two reversing wheels. One end of the traction rope is fixed on the pulley, and the other end of the traction rope is connected to the lower end of the telescopic dust cover.

5. The graphite packing device according to claim 4, characterized in that: The telescopic drive mechanism also includes a reversing wheel for changing the direction of the traction rope, a rotating shaft for installing the reversing wheel, and a mounting plate for installing the rotating shaft. The mounting plate is installed on the hanger. There are two reversing wheels. One end of the traction rope is fixed on the pulley, and the other end of the traction rope is connected to the lower end of the telescopic dust cover after passing around the reversing wheel.

6. The graphite packing device according to claim 3, characterized in that: The first feeding pipe includes a first guide tube for guiding powder to the top of the corresponding graphite blank box and a first mounting tube for installing a telescopic dust cover. The upper end of the first guide tube is connected to the box of the feeding switching device, and the first guide tube is connected to the middle part of the first installation. The first mounting tube is provided with two symmetrical through holes, and the two through holes are used for two traction ropes to pass through.

7. The graphite packing device according to claim 3, characterized in that: The second feeding pipe includes a second guide tube for guiding the powder to the top of the corresponding graphite blank box and a second mounting tube for installing a telescopic dust cover. The upper end of the second guide tube is connected to the box of the feeding switching device, and the second guide tube is connected to the middle part of the second installation. The second mounting tube is provided with two symmetrical through holes, and the two through holes are used for two traction ropes to pass through.

8. The graphite packing device according to claim 3, characterized in that: The third feeding pipe includes a third guide tube for guiding the powder to the top of the corresponding graphite blank box and a third mounting tube for installing a telescopic dust cover. The upper end of the third guide tube is connected to the box of the feeding switching device, and the third guide tube is connected to the middle part of the third mounting.

9. The graphite packing device according to claim 8, characterized in that: The third mounting tube is provided with two symmetrical through holes, and the two through holes are used for two traction ropes to pass through.

10. The graphite packing device according to claim 1, characterized in that: It also includes a negative pressure dust suction pipe for dust suction, and the first feeding pipe, the second feeding pipe and the third feeding pipe are all connected with the negative pressure dust suction pipe.

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