CN110369165B

CN110369165B - Split combined nozzle

Info

Publication number: CN110369165B
Application number: CN201910633903.6A
Authority: CN
Inventors: 周成; 周益城; 周成平
Original assignee: Changxing Zhengfa Thermoelectrtric Refractory Material Co ltd
Current assignee: Changxing Zhengfa Thermoelectrtric Refractory Material Co ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-07-17
Anticipated expiration: 2039-07-15
Also published as: CN110369165A

Abstract

The invention discloses a split combined nozzle, which comprises a gear disc, a connecting pipe, an injection pipe and a supporting plate, wherein the gear disc is rotatably connected with the supporting plate, an output shaft of a motor penetrates through the supporting plate to be connected with a first gear, the first gear is meshed with the gear disc, a plurality of cavities are arranged in the gear disc, a first round hole is formed in the left end of each cavity, a second round hole is formed in the right end of each cavity, a first sliding block and a plurality of springs matched with the first sliding block are arranged in each cavity, the right end of each sliding block is connected with a nozzle, one end of each nozzle is connected with the first sliding block, the other end of each nozzle penetrates through the gear disc, the springs are distributed on the side surface of each nozzle, one end of each spring is connected with the first sliding block, the other end of each sliding block is provided with a first through hole, one end of the connecting, the third gear is meshed with the second gear. The invention has the beneficial effects that: the working efficiency is improved.

Description

Split combined nozzle

Technical Field

The invention relates to the technical field of nozzles, in particular to a split combined nozzle.

Background

The nozzle is a key part in various spraying, atomizing, oil spraying, sand blasting, spraying and other equipment and plays an important role.

The nozzle is widely applied in industries, the material of the nozzle is from stainless steel, plastics to silicon carbide, polytetrafluoroethylene, PP (engineering plastics), aluminum alloy, tungsten steel and the like, and the nozzle is generally applied in various industries such as automobile, electroplating, surface treatment, high-pressure cleaning, dust removal, cooling, desulfurization, humidification, stirring, garden and the like.

The nozzles need to be maintained, periodically inspected, cleaned and even replaced during use in order to ensure the quality of the final product and to maintain the economics of the production process. Especially in the metallurgical industry, the nozzle needs to enter a high-temperature furnace to work, when the nozzle breaks down, equipment operation is often needed to be suspended, the nozzle is maintained or replaced after being cooled, and the working efficiency is greatly reduced while the nozzle is inconvenient to replace.

Disclosure of Invention

The invention provides a split combined nozzle which is convenient to replace and improves the working efficiency, and aims to overcome the problems that the nozzle is inconvenient to replace and the working efficiency is reduced in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a split combined nozzle comprises a gear disc, a connecting pipe, an injection pipe and a supporting plate, wherein a main shaft and a first gear are arranged on the right side of the supporting plate, the gear disc is rotatably connected with the supporting plate through the main shaft, a first motor and a second motor are arranged on the left side of the supporting plate, an output shaft of the first motor penetrates through the supporting plate to be fixedly connected with the first gear, the first gear is meshed with the gear disc, a plurality of cavities are arranged in the gear disc and form a circular ring, the central shaft of the circular ring and the central shaft of the gear disc are the same axis, a first round hole is formed in the left end of each cavity, a second round hole is formed in the right end of each cavity, a first sliding block and a plurality of springs matched with the first sliding block are arranged in each cavity, a threaded hole is formed in the right end of the first sliding block, a, the other end of nozzle runs through the toothed disc through round hole two, spring evenly distributed is in the side of nozzle, the one end and the slider fixed connection of spring, the other end and the toothed disc fixed connection of spring, the left end of slider one is equipped with through-hole one, the one end and the injection pipe of connecting pipe are connected, the position at the other end place of connecting pipe is corresponding with the position at round hole one place, threaded connection has gear two on the connecting pipe, the gear two is located between injection pipe and the backup pad, motor two is located the left side of backup pad, the output of motor two is equipped with gear three, gear three and the meshing of gear two.

The right side of the supporting plate is provided with a main shaft and a first gear, the gear disc is rotatably connected with the supporting plate through the main shaft, the left side of the supporting plate is provided with a first motor and a second motor, an output shaft of the first motor penetrates through the supporting plate and is fixedly connected with the first gear, the first gear is meshed with the gear disc, the first motor is started and rotates for a certain number of turns, the first motor drives the first gear to rotate, the gear drives the gear disc to rotate, so that a nozzle in the high-temperature furnace can be conveniently rotated out for maintenance or replacement, an external nozzle is rotated into the high-temperature furnace to continue; the gear disc is internally provided with a plurality of cavities, the cavities form a circular ring, the central shaft of the circular ring and the central shaft of the gear disc are on the same axis, the left end of the cavity is provided with a first round hole, the right end of the cavity is provided with a second round hole, a first sliding block and a plurality of springs matched with the first round hole are arranged in the cavity, the right end of the first sliding block is provided with a threaded hole, a nozzle is connected with the thread in the threaded hole, one end of the nozzle is in threaded connection with the first sliding block, the other end of the nozzle penetrates through the gear disc; the spring is uniformly distributed on the side face of the nozzle, one end of the spring is fixedly connected with the first sliding block, the other end of the spring is fixedly connected with the gear disc, a first through hole is formed in the left end of the first sliding block, one end of the connecting pipe is connected with the injection pipe, the position of the other end of the connecting pipe corresponds to the position of the first circular hole, a second gear is connected to the connecting pipe in a threaded mode and is located between the injection pipe and the supporting plate, a second motor is located on the left side of the supporting plate, a third gear is arranged at the output end of the second motor and meshed with the second gear, the second motor is started to rotate for a certain number of turns, the second motor drives the second gear to rotate, the second gear drives the third gear to rotate, the third gear is connected with the connecting pipe in a threaded mode, the connecting pipe; when the nozzle in the high-temperature furnace needs to be replaced or maintained, the connecting pipe moves leftwards, the spring resets, the sliding block drives the nozzle to reset, the nozzle moves out of the high-temperature furnace, at the moment, the first motor is started, the gear disc rotates to a certain position to be maintained or replaced, and meanwhile, the external nozzle continues to enter the high-temperature furnace to work. The design achieves the purposes of convenient replacement and improving the working efficiency.

Preferably, the cavity is cylindrical, the diameter of the first round hole is smaller than that of the cavity and larger than that of the first through hole, and when the spring is reset, the position of the baffle is fixed conveniently and the baffle is installed conveniently; the diameter of the round hole II is smaller than the outer diameter of the sliding block I, so that the spring can be conveniently installed and fixed; the left end of cavity is equipped with two baffle I, two baffle I distribute from top to bottom, the one end of baffle I is articulated with the toothed disc, the other end of baffle I is located the center of round hole I, two baffle I contact and cover round hole I completely, baffle one is located the left end of slider I and is located the junction of round hole I and cavity, baffle I can prevent that the liquid of storing in the liquid reserve tank from leaking outward, and simultaneously, when the connecting pipe removes, the connecting pipe is used in baffle I, the one end of baffle I is articulated with the toothed disc, the other end of baffle I is used in slider I can make slider I move in the same direction, thereby send into the nozzle or send out high temperature furnace, when the connecting pipe breaks away from baffle I, the spring resets, two baffle I are closed, slider I is used in baffle I.

Preferably, the outer diameter of the connecting pipe is larger than that of the first through hole and smaller than that of the first sliding block, and when the baffle is completely opened, the connecting pipe can directly act on the first sliding block.

As preferred, be equipped with the liquid reserve tank between toothed disc and the backup pad, the liquid reserve tank is located the side of main shaft, the left side and the backup pad fixed connection of liquid reserve tank, the right side of liquid reserve tank and the one end and the injection pipe of toothed disc sliding connection connecting pipe are connected, in the liquid reserve tank is arranged in to the other end of connecting pipe, when the toothed disc of being convenient for of liquid reserve tank rotates the change nozzle, the liquid that spouts is stored temporarily, the incessant work of in-process injection pipe of assurance change nozzle improves work efficiency.

Preferably, be equipped with the push pedal in the liquid reserve tank, the top of liquid reserve tank is equipped with the cylinder, cylinder and backup pad fixed connection, the top panel and the push pedal fixed connection that the output of cylinder passed the liquid reserve tank, the inner wall sliding connection of push pedal and liquid reserve tank, the bottom of liquid reserve tank is equipped with through-hole two, the one end and the injection pipe of connecting pipe are connected, the other end of connecting pipe is arranged in through-hole two, the diameter of through-hole two is greater than the external diameter of connecting pipe. Spray liquid and spray through the injection pipe, the nozzle is sent into to the rethread connecting pipe, spout the work in the high temperature furnace by the nozzle, when needs are changed or the maintenance nozzle, two reversals of motor drive the connecting pipe and move left, send out the high temperature furnace with the nozzle, when the connecting pipe breaks away from the baffle for one time, spring reset, two baffles are closed once, spray intraductal injection liquid passes through the connecting pipe and temporarily sprays to the liquid reserve tank in, and meanwhile, starter motor drives the gear plate and rotates, send into the high temperature furnace with outside nozzle, the cylinder promotes the push pedal down, discharge the nozzle with the liquid in the liquid reserve tank, two corotation of motor, repetitive operation.

Preferably, the left side of toothed disc is equipped with the spout, and the cross sectional shape of spout is the T type, and the bottom of liquid reserve tank is equipped with spout assorted slider two, and the liquid reserve tank passes through slider two and toothed disc sliding connection, and when the toothed disc rotated, the liquid reserve tank removed in the spout for the toothed disc.

Preferably, the second sliding block is circular, the central shaft of the second through hole and the central shaft of the second sliding block are on the same axis, the sliding chute is circular in shape, the central shaft of the sliding chute and the central shaft of the gear disc are on the same axis, and the first round holes are uniformly distributed at the bottom of the sliding chute. During the rotation of the gear disc, the second sliding block at the bottom of the liquid storage box is always in the sliding groove, and when the central shaft of the second through hole and the central shaft of the first round hole are on the same axis, the connecting pipe penetrates through the bottom of the liquid storage box and the second sliding block and sends the injection liquid into the nozzle through the first round hole.

Preferably, the material adopted by the nozzle is a high-temperature-resistant material, a third through hole is formed in the nozzle, the diameter of the left end of the third through hole is the same as that of the first through hole, the diameter of the third through hole is gradually reduced or increased from the left end to the right end, and different specifications can be selected according to different requirements; the left end of the nozzle is in threaded connection with the first sliding block, so that the nozzle is convenient to disassemble; the right end of the nozzle is provided with a high-temperature furnace, and the nozzle is butted with the high-temperature furnace, so that the nozzle can be detached conveniently for maintenance or replacement under the action of external force on the right end of the nozzle.

Preferably, the outer diameter of the high-temperature furnace is smaller than that of the gear disc, so that one nozzle is positioned in the high-temperature furnace, and the other nozzles are positioned outside the high-temperature furnace; be equipped with on the high temperature furnace with nozzle assorted pay-off mouth, the nozzle is located the left side of pay-off mouth, and the right side of pay-off mouth is equipped with baffle two, and baffle two is articulated with the high temperature furnace inner wall and covers the pay-off mouth completely, and when the nozzle got into the high temperature furnace, baffle two was by the top-open upwards rotation, and when the nozzle sent out the high temperature furnace, baffle two received the action of gravity, and the downward rotation was until covering the pay-off mouth completely, guaranteed personnel's safety.

The invention has the beneficial effects that: the nozzle in the high-temperature furnace is sent out of the high-temperature furnace for maintenance or replacement, so that the operation is convenient; when the nozzle is maintained or replaced, the spraying pipe continuously sprays liquid without pause, and the external nozzle is transferred into the furnace to continue working, so that the time is greatly saved, and the working efficiency is improved; the safety of personnel is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation as soon as the shutter is closed;

FIG. 3 is a schematic view of the installation of the flap once open;

FIG. 4 is a left side view of the gear plate;

fig. 5 is a right side view of the gear plate.

In the figure: 1. the device comprises a gear disc, a connecting pipe, a spray pipe, a supporting plate, a main shaft, a gear I, a motor II, a liquid storage tank 9, a cavity 10, a circular hole I11, a circular hole II 12, a sliding block I13, a sliding block I14, a spring 15, a nozzle 16, a through hole I17, a gear II 18, a gear III 19, a baffle I20, a push plate 21, an air cylinder 21, a through hole II 22, a sliding groove 23, a sliding block II 24, a through hole III 25, a high-temperature furnace 26, a feeding port 27, a baffle II 28.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

In the embodiment shown in fig. 1, a split combined nozzle comprises a gear disc 1, a connecting pipe 2, an injection pipe 3 and a support plate 4, a main shaft 5 and a first gear 6 are arranged on the right side of the support plate 4, the gear disc 1 is rotatably connected with the support plate 4 through the main shaft 5, a first motor 7 and a second motor 8 are arranged on the left side of the support plate 4, an output shaft of the first motor 7 penetrates through the support plate 4 and is fixedly connected with the first gear 6, the first gear 6 is meshed with the gear disc 1, a plurality of cavities 10 are arranged in the gear disc 1, the cavities 10 form a circular ring, a central shaft of the circular ring and a central shaft of the gear disc 1 are the same axis, a first round hole 11 is arranged at the left end of the cavity 10, a second round hole 12 is arranged at the right end of the cavity 10, a first slider 13 and a plurality of springs 14 which are matched with the cavities, one end and the first 13 threaded connection of slider of nozzle 15, the other end of nozzle 15 runs through toothed disc 1 through two 12 round holes, spring 14 evenly distributed is in the side of nozzle 15, the one end and the first 13 fixed connection of slider of spring 14, the other end and toothed disc 1 fixed connection of spring 14, the left end of a slider 13 is equipped with through-hole 16, the one end and the injection pipe 3 of connecting pipe 2 are connected, the position at the other end place of connecting pipe 2 corresponds with the position at round hole 11 place, threaded connection has two gears 17 on the connecting pipe 2, two gears 17 are located between injection pipe 3 and the backup pad 4, two 8 motors are located the left side of backup pad 4, the output of two 8 motors is equipped with three 18 gears, three 18 gears are meshed with two gears 17.

As shown in fig. 1, 2 and 3, the cavity 10 is cylindrical, the diameter of the first round hole 11 is smaller than the diameter of the cavity 10 and larger than the diameter of the first through hole 16, the diameter of the second round hole 12 is smaller than the outer diameter of the first sliding block 13, the first baffle 19 is arranged at the left end of the cavity 10, the first baffle 19 is distributed vertically, one end of the first baffle 19 is hinged to the gear disc 1, the other end of the first baffle 19 is located at the center of the first round hole 11, the first baffle 19 is in contact with and completely covers the first round hole 11, and the first baffle 19 is located at the left end of the first sliding block 13 and located at the joint of the first round hole 11 and the cavity 10.

As shown in FIG. 1, the outer diameter of the connecting tube 2 is larger than the diameter of the first through hole 16 and smaller than the outer diameter of the first sliding block 13. Be equipped with liquid reserve tank 9 between toothed disc 1 and the backup pad 4, liquid reserve tank 9 is located the side of main shaft 5, the left side and the backup pad 4 fixed connection of liquid reserve tank 9, the right side and the toothed disc 1 sliding connection of liquid reserve tank 9, the one end and the injection pipe 3 of connecting pipe 2 are connected, and the other end of connecting pipe 2 is arranged in liquid reserve tank 9. Be equipped with push pedal 20 in the liquid reserve tank 9, the top of liquid reserve tank 9 is equipped with cylinder 21,

cylinder

21 and 4 fixed connection of backup pad, the top panel and the push pedal 20 fixed connection of liquid reserve tank 9 are passed to the output of cylinder 21, the inner wall sliding connection of push pedal 20 and liquid reserve tank 9, the bottom of liquid reserve tank 9 is equipped with two through-holes 22, the one end and the injection pipe 3 of connecting pipe 2 are connected, two 22 in the through-holes are arranged in to the other end of connecting pipe 2, the diameter of two 22 in the through-holes is greater than the external diameter of connecting pipe.

As shown in fig. 4, a sliding groove 23 is formed in the left side of the gear plate 1, the cross section of the sliding groove 23 is T-shaped, a second sliding block 24 matched with the sliding groove 23 is arranged at the bottom of the liquid storage tank 9, and the liquid storage tank 9 is connected with the gear plate 1 in a sliding mode through the second sliding block 24.

As shown in fig. 1, the second sliding block 24 is circular, the central axis of the second through hole 22 and the central axis of the second sliding block 24 are the same axis, the sliding chute 23 is circular, the central axis of the sliding chute 23 and the central axis of the gear disc 1 are the same axis, and the first round holes 11 are uniformly distributed at the bottom of the sliding chute 23.

As shown in fig. 5, the number of the nozzles 15 is four, the material used for the nozzles 15 is a high temperature resistant material, a third through hole 25 is arranged in the nozzle 15, the diameter of the left end of the third through hole 25 is the same as that of the first through hole 16, the diameter of the third through hole 25 is gradually reduced or gradually increased from the left end to the right end, the left end of the nozzle 15 is in threaded connection with the first slider 13, a high temperature furnace 26 is arranged at the right end of the nozzle 15, and the nozzle 15 is butted with the high temperature furnace 26.

As shown in figure 1, the outer diameter of the high-temperature furnace 26 is smaller than that of the gear plate 1, a feeding port 27 matched with the nozzle 15 is formed in the high-temperature furnace 26, the nozzle 15 is located on the left side of the feeding port 27, a second baffle 28 is arranged on the right side of the feeding port 27, and the second baffle 28 is hinged with the inner wall of the high-temperature furnace 26 and completely covers the feeding port 27.

The working principle is as follows: before the operation, the push plate 20 is positioned at the top of the liquid storage tank 9, the first motor 7 is started, the first motor 7 rotates for a certain number of turns, the first motor 7 drives the first gear 6 to rotate, the first gear 6 drives the gear disc 1 to rotate, a nozzle 15 needing to be fed into the high-temperature furnace 26 is aligned to the feeding port 27, and the first motor 7 stops operating; starting a second motor 8, enabling the second motor 8 to rotate forwards, enabling the connecting pipe 2 to move to one side of the high-temperature furnace 26 through gear transmission, enabling one end of the connecting pipe 2 to act on the first baffle 19, enabling one end of the first baffle 19 to be hinged with the gear disc 1, enabling the other end of the first baffle 19 to act on the first sliding block 13 under the pushing of the connecting pipe 2, enabling the first sliding block 13 to move in the same direction, and accordingly sending the nozzle 15 into the high-temperature furnace 26, and stopping the second motor 8; when the nozzle 15 needs to be replaced or maintained, the second motor 8 is started again, the second motor 8 rotates reversely to drive the connecting pipe 2 to move reversely, the nozzle 15 is sent out of the high-temperature furnace 26, when the connecting pipe 2 is separated from the first baffle 19, the spring 14 resets, the first two baffles 19 are closed, the spraying liquid in the spraying pipe 3 is temporarily sprayed into the liquid storage tank 9 through the connecting pipe 2, meanwhile, the first motor 7 is started, the external nozzle 15 is sent into the high-temperature furnace 26 through gear transmission, the air cylinder 21 pushes the push plate 20 to move downwards, the liquid in the liquid storage tank 9 is discharged into the nozzle 15, the second motor 8 rotates forwards, and repeated operation is carried out.

Claims

1. A split combined nozzle is characterized by comprising a gear disc (1), a connecting pipe (2), an injection pipe (3) and a supporting plate (4), wherein a main shaft (5) and a first gear (6) are arranged on the right side of the supporting plate (4), the gear disc (1) is rotatably connected with the supporting plate (4) through the main shaft (5), a first motor (7) and a second motor (8) are arranged on the left side of the supporting plate (4), an output shaft of the first motor (7) penetrates through the supporting plate (4) to be fixedly connected with the first gear (6), the first gear (6) is meshed with the gear disc (1), a plurality of cavities (10) are arranged in the gear disc (1), the cavities (10) form a circular ring, the central shaft of the circular ring and the main shaft (5) of the gear disc (1) are the same axial line, and a first round hole (11) is arranged at the left end of the cavity (10), the right end of the cavity (10) is provided with a round hole II (12), a first slider (13) and a plurality of springs (14) which are matched with the round hole II are arranged in the cavity (10), a threaded hole is formed in the right end of the first slider (13), a nozzle (15) is connected with the threaded hole in an internal thread manner, one end of the nozzle (15) is in threaded connection with the first slider (13), the other end of the nozzle (15) penetrates through the gear disc (1) through the round hole II (12), the springs (14) are uniformly distributed on the side face of the nozzle (15), one end of the spring (14) is fixedly connected with the first slider (13), the other end of the spring (14) is fixedly connected with the gear disc (1), a through hole I (16) is formed in the left end of the first slider (13), one end of the connecting pipe (2) is connected with the injection pipe (3), and the position where the other end of the connecting pipe (2) is corresponding to the position, threaded connection has gear two (17) on connecting pipe (2), gear two (17) are located between injection pipe (3) and backup pad (4), motor two (8) are located the left side of backup pad (4), the output of motor two (8) is equipped with gear three (18), gear three (18) and gear two (17) meshing.

2. The split combined type nozzle as claimed in claim 1, wherein the cavity (10) is cylindrical, the diameter of the first round hole (11) is smaller than that of the cavity (10) and larger than that of the first through hole (16), the diameter of the second round hole (12) is smaller than the outer diameter of the first sliding block (13), the left end of the cavity (10) is provided with the first two baffle plates (19), the first two baffle plates (19) are vertically distributed, one end of the first baffle plate (19) is hinged to the gear disc (1), the other end of the first baffle plate (19) is located in the center of the first round hole (11), the first two baffle plates (19) are in contact with each other and completely cover the first round hole (11), and the first baffle plate (19) is located at the left end of the first sliding block (13) and located at the joint of the first round hole (11) and the cavity (10).

3. A split nozzle according to claim 1 or 2, wherein the outer diameter of the connecting tube (2) is larger than the diameter of the first through hole (16) and smaller than the outer diameter of the first slide (13).

4. A split combined nozzle as claimed in claim 1, wherein a liquid storage tank (9) is arranged between the gear disc (1) and the support plate (4), the liquid storage tank (9) is arranged at the side of the main shaft (5), the left side of the liquid storage tank (9) is fixedly connected with the support plate (4), the right side of the liquid storage tank (9) is slidably connected with the gear disc (1), one end of the connecting pipe (2) is connected with the injection pipe (3), and the other end of the connecting pipe (2) is arranged in the liquid storage tank (9).

5. The split combined nozzle as claimed in claim 4, wherein a push plate (20) is arranged in the liquid storage tank (9), a cylinder (21) is arranged at the top of the liquid storage tank (9), the cylinder (21) is fixedly connected with the support plate (4), the output end of the cylinder (21) penetrates through the top panel of the liquid storage tank (9) and is fixedly connected with the push plate (20), the push plate (20) is slidably connected with the inner wall of the liquid storage tank (9), a second through hole (22) is arranged at the bottom of the liquid storage tank (9), one end of the connecting pipe (2) is connected with the injection pipe (3), the other end of the connecting pipe (2) is arranged in the second through hole (22), and the diameter of the second through hole (22) is larger than the outer diameter of the connecting pipe (2).

6. The split combined nozzle as claimed in claim 4, wherein a sliding groove (23) is formed in the left side of the gear disc (1), the cross section of the sliding groove (23) is T-shaped, a second sliding block (24) matched with the sliding groove (23) is arranged at the bottom of the liquid storage tank (9), and the liquid storage tank (9) is connected with the gear disc (1) in a sliding mode through the second sliding block (24).

7. The split combined nozzle as claimed in claim 6, wherein the second sliding block (24) is circular, the central axis of the second through hole (22) and the central axis of the second sliding block (24) are coaxial, the sliding chute (23) is circular, the central axis of the sliding chute (23) and the central axis of the gear disc (1) are coaxial, and the first circular holes (11) are uniformly distributed at the bottom of the sliding chute (23).

8. The split combined type nozzle as claimed in claim 1, wherein the nozzle (15) is made of a high temperature resistant material, a third through hole (25) is formed in the nozzle (15), the diameter of the left end of the third through hole (25) is the same as that of the first through hole (16), the diameter of the third through hole (25) is gradually reduced or increased from the left end to the right end, the left end of the nozzle (15) is in threaded connection with the first sliding block (13), the right end of the nozzle (15) is provided with a high temperature furnace (26), and the nozzle (15) is butted with the high temperature furnace (26).

9. The split combined type nozzle as claimed in claim 8, wherein the outer diameter of the high temperature furnace (26) is smaller than that of the gear plate (1), a feeding port (27) matched with the nozzle (15) is formed in the high temperature furnace (26), the nozzle (15) is located on the left side of the feeding port (27), a second baffle plate (28) is arranged on the right side of the feeding port (27), and the second baffle plate (28) is hinged with the inner wall of the high temperature furnace (26) and completely covers the feeding port (27).