Metal iron casting processing device adapted to anti-oxidation environment

Abstract

The present invention discloses a metal iron casting processing device adapted to an anti-oxidation environment, relates to the field of metal casting technology, and solves the problem that the existing casting equipment is difficult to avoid oxidation during the processing, does not have an anti-oxidation environment, and does not have a good casting auxiliary environment. The metal iron casting processing device adapted to an anti-oxidation environment includes a base, and two sets of docking plates are fixedly arranged at the front and rear ends of the right side of the base; a plate conveyor belt, the plate conveyor belt is rotatably arranged outside the two sets of rollers, and the rear roller is rotatably arranged on the top of the rear docking plate through a bracket; an anti-oxidation environment is provided for the processing equipment by providing a containing bin, and after the containing bin is evacuated to a vacuum, heater A and heater B are connected to heat, filter and fall into the inside of the crucible, and the recasting step is completed. The anti-oxidation effect can be maintained during the process, and the temperature loss is reduced. The inside of the containing bin is provided with circulating water to ensure its own temperature to prevent deformation.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting, in particular to a metal iron casting processing device adapted to an anti-oxidation environment. Background Art

[0002] Casting is a process of pouring liquid metal into a casting mold cavity that matches the shape of the part. After the liquid cools and solidifies, parts or blanks are obtained. When processing iron, it also needs to go through a melting and recrystallization process, which is generally achieved through a furnace.

[0003] After searching, for example, the patent number CN110756790B discloses an automatic intelligent processing equipment for casting forming, including a base, on which two brackets are arranged; a casting bucket, on whose outer wall two connecting arms are symmetrically connected, and the connecting arms are rotatably arranged on the bracket; a driving device for driving the casting bucket to flip relative to the bracket; a cleaning device for cleaning the solidified material on the upper layer of the molten iron in the casting bucket; an end cover, rotatably arranged on the casting bucket, and provided with an extension plate and a fan-shaped opening; an end cover driving device for driving the end cover to switch positions between a first position and a second position. The cleaning component in the present invention can scrape off a layer of solidified material on the upper surface of the molten iron, thereby improving the quality of the casting obtained by processing; and the amount of molten iron discharged can be adjusted and limited, thereby realizing the controllability of the discharge.

[0004] Similar to the above-mentioned application casting equipment, there are still the following shortcomings:

[0005] First, it is difficult to avoid oxidation during the processing of existing casting equipment, and it does not have an anti-oxidation environment, a good casting auxiliary environment and casting accident detection functions; second, it does not have the injection function realized by automatic transportation and docking automation, which is not conducive to the rapid and automatic injection of molten iron into the mold; third, it does not have an automated transportation and material control structure, and does not have a surplus structure.

[0006] Therefore, the existing demand is not met, and we have proposed a metal iron casting processing device that is adapted to an anti-oxidation environment. Summary of the invention

[0007] 1. Technical issues

[0008] The purpose of the present invention is to provide a metal iron casting processing device that is adapted to an anti-oxidation environment, so as to solve the problems raised in the above background technology that the existing casting equipment is difficult to avoid oxidation during the processing process, does not have an anti-oxidation environment, does not have a good casting auxiliary environment and casting accident detection function, does not have automatic transportation and docking automation to realize injection function, is not conducive to the rapid and automatic injection of molten iron into the mold, does not have an automated transportation and material control structure, and does not have a surplus structure.

[0009] (II) Technical solution

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a metal iron casting processing device adapted to an anti-oxidation environment, comprising a base, wherein two groups of docking plates are fixedly arranged at the front and rear ends of the right side of the base; a plate conveyor belt, wherein the plate conveyor belt is rotatably arranged outside the two groups of rollers, and the rear roller is rotatably arranged on the top of the rear docking plate through a bracket; a U-shaped frame, wherein the number of the U-shaped frames is set to six groups, and the six groups of U-shaped frames are fixedly arranged in two rows on the top right side of the base; a containing bin, wherein the containing bin is fixedly arranged on the top of the base through a bracket, a vacuum pump is connected to the rear side of the containing bin, and a circulating water circuit is arranged in the overall wall of the containing bin; and a feeding cylinder, wherein the feeding cylinder is fixedly arranged in the middle of the top of the base.

[0011] Preferably, the plate conveyor belt also includes: a movable shaft frame, two groups of movable shaft frames are rotatably arranged at both ends of the front roller, and the movable shaft frame is slidably arranged on the top of the front docking plate through a guide rail; a tensioning guide rod, a tensioning guide rod is fixedly arranged in the middle of the rear end of the movable shaft frame, and an alignment strip is passed through the outside of the tensioning guide rod; a self-locking block, two groups of self-locking blocks are fixedly arranged on the top of the front docking plate, and the tensioning guide rod passes through the alignment strip and is provided with a spring and is slidably connected with the self-locking block.

[0012] Preferably, the U-shaped frame also includes: an H slider, an H slider is slidably arranged in the middle of the U-shaped frame, and a lifting plate is fixedly arranged in the middle of the two rows of H sliders; a connecting bar, a connecting bar is fixedly arranged on the outer sides of the two rows of H sliders, and an alignment cylinder is rotatably arranged in the middle of the bottom of the connecting bar through a hinge connection, and the other end of the alignment cylinder is rotatably arranged on the top of the base through a hinge connection and installed in an inclined state.

[0013] Preferably, the containing bin also includes: a melting bin, in which a melting bin is integrally arranged in the middle of the top of the containing bin, a heater A is fixedly arranged inside the melting bin through an insulating graphite bracket, and a center hole plate is fixedly arranged at the bottom of the melting bin; a sealing plate, in which the right side of the containing bin is an opening structure, and a sealing plate is sealed outside the opening structure by bolts and rubber rings; an isolation plate is fixedly arranged on the inner side of the sealing plate; a lifting cylinder, in which four groups of lifting cylinders are fixedly arranged around the top of the containing bin, a top cover is fixedly arranged on the top of the lifting cylinder, and a sealing ring is arranged at the bottom of the top cover; a cylindrical structure is integrally arranged in the middle of the bottom of the containing bin, and a discharge pipe is integrally arranged on the right side of the cylindrical structure, the discharge pipe is a double-layer structure and is inclined downward; a trapezoidal bin, in which a trapezoidal bin is fixedly arranged on the right end of the discharge pipe, and a discharge interface is connected in the middle of the bottom of the trapezoidal bin; a residual bin, in which a residual bin is connected to the front side of the trapezoidal bin, and the main body of the residual bin is a bottled structure inclined forward.

[0014] Preferably, the top cover also includes: a heater B, which is suspended in the middle of the bottom of the top cover through an insulating graphite rod; a charging barrel, which is suspended at the bottom of the top cover, and the height of the charging barrel is half the height of the melting bin; the bottom end of the charging barrel does not contact the center hole plate; a liquid outlet hole, the inner bottom surface of the charging barrel is set as a conical structure with a middle height, and the taper is 1-1.5°, and a liquid outlet hole is opened on the outer periphery of the bottom of the charging barrel.

[0015] Preferably, the isolation plate further comprises: an overflow ring, two groups of overflow rings are embedded on the inner side of the top of the isolation plate, the two groups of overflow rings are parallel, and the rear sides of the overflow rings are connected to electricity; a circular hole is opened in the middle of the bottom of the isolation plate.

[0016] Preferably, a crucible is arranged on the top of the isolation plate, the crucible is cylindrical, and the diameter of the crucible is smaller than the diameter of the overflow ring; two groups of slots are opened at the bottom of the crucible; a cylindrical structure is integrally arranged in the middle of the bottom of the crucible, and the bottom cylinder of the crucible fits in the bottom cylinder of the containing bin.

[0017] Preferably, a cylindrical plug is fixedly arranged on the top of the feeding cylinder, and a limiting valve is fixedly arranged in the middle of the top of the cylindrical plug. The main body of the limiting valve is a cylindrical structure, and a through groove is opened in the middle of the limiting valve; the cylindrical plug is slidably arranged in the bottom cylinder of the accommodating bin; the limiting valve is slidably arranged in the bottom cylinder of the crucible.

[0018] (III) Beneficial effects

[0019] The present invention provides a metal iron casting processing device adapted to an anti-oxidation environment. By providing a containing chamber, an anti-oxidation environment is provided for processing equipment. After the containing chamber is evacuated to a vacuum, heater A and heater B are turned on for heating. After the iron material is melted, it is discharged from a liquid outlet to the top of a central hole plate, filtered and falls into a crucible, and a recasting step is completed. During the process, the anti-oxidation effect can be maintained and the temperature loss can be reduced. Circulating water is provided inside the containing chamber to ensure its own temperature and prevent deformation.

[0020] Secondly, the H slider, connecting strip and alignment cylinder constitute a lifting mechanism, which provides a docking function for the processing equipment. The lifting plate is raised, a group of molds are raised, and the mold mouth is docked on the outside of the discharge interface, and then the cylindrical piston is contracted to intercept part of the molten iron by the limiting valve, and the molten iron is input into the discharge pipe, flows into the discharge pipe, and further enters the discharge interface; in the event of a calculation problem causing the molten iron stock to overflow the mold, the molten iron will flow into the residual bin for storage to avoid blockage, providing a residual storage structure; the discharge interface needs to be replaced after each furnace opening, and the residual bin can be selectively replaced depending on the stock, which is easy to operate.

[0021] Furthermore, the setting of the isolation plate and the overflow ring provides a monitoring and detection function, which can detect the condition of the crucible. When the crucible is damaged and molten iron flows out, the overflow ring will be connected, and then the circuit will be connected to sound an alarm, which can remind of processing accidents and has a good monitoring effect. Moreover, the overflow ring is an inlaid setting, so the power-on monitoring effect can be achieved even if it is melted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a three-dimensional structure in an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the shaft side structure in an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of a side tilt structure in an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of a partially disassembled structure in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a half-section structure in an embodiment of the present invention;

[0027] Figure 6 A is a schematic diagram of a local enlarged structure of an embodiment of the present invention;

[0028] Figure 7 It is a schematic diagram of a partially enlarged structure of B in an embodiment of the present invention;

[0029] Figure 8 It is a schematic diagram of a partially enlarged structure of C in an embodiment of the present invention;

[0030] exist Figures 1 to 8 In the figure, the corresponding relationship between the component names or lines and the figure numbers is as follows:

[0031] 1. Base; 101. Docking plate; 2. Plate conveyor belt; 201. Roller; 202. Moving shaft frame; 203. Tensioning guide rod; 204. Alignment strip; 205. Self-locking block; 3. U-shaped frame; 301. H slider; 302. Lifting plate; 303. Connecting strip; 304. Alignment cylinder; 4. Accommodating bin; 401. Melting bin; 402. Sealing plate; 403. Lifting cylinder; 404. Heater A; 405. Discharge pipe; 406. Trapezoidal bin; 407. Discharge interface; 408. Residual bin; 5. Top cover; 501. Heater B; 502. Charging barrel; 503. Liquid outlet; 6. Center hole plate; 7. Isolation plate; 701. Overflow ring; 8. Crucible; 9. Feeding cylinder; 10. Cylindrical plug; 1001. Limiting valve. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figures 1 to 8 , the present invention provides an embodiment: a metal iron casting processing device adapted to an anti-oxidation environment, comprising a base 1, two groups of docking plates 101 are fixedly arranged at the front and rear ends of the right side of the base 1; a plate conveyor belt 2, the plate conveyor belt 2 is rotatably arranged outside the two groups of rollers 201, and the rear roller 201 is rotatably arranged on the top of the rear docking plate 101 through a bracket, and accordingly, a motor transmission connection is arranged at one end of the rear roller 201; a U-shaped frame 3, the number of the U-shaped frames 3 is set to six groups, and the six groups of U-shaped frames 3 are fixedly arranged on the top right side of the base 1 in two rows; a accommodating bin 4, the accommodating bin 4 is fixedly arranged on the top of the base 1 through a bracket, a vacuum pump is connected to the rear side of the accommodating bin 4, and a circulating water channel is arranged in the overall wall of the accommodating bin 4; a feeding cylinder 9, the feeding cylinder 9 is fixedly arranged in the middle of the top of the base 1.

[0036] Among them, the plate conveyor belt 2 also includes: a movable shaft frame 202, two groups of movable shaft frames 202 are rotatably arranged at both ends of the front roller 201, and the movable shaft frame 202 is slidably arranged on the top of the front docking plate 101 through a guide rail; a tensioning guide rod 203, a tensioning guide rod 203 is fixedly arranged in the middle of the rear end of the movable shaft frame 202, and an alignment strip 204 is passed through the tensioning guide rod 203; a self-locking block 205, two groups of self-locking blocks 205 are fixedly arranged on the top of the front docking plate 101, the tensioning guide rod 203 passes through the alignment strip 204 and is sleeved with a spring and is slidably connected with the self-locking block 205.

[0037] refer to Figure 6 By setting the tensioning guide rod 203 and the movable shaft frame 202, the plate conveyor belt 2 is provided with an automatic tensioning function, which can keep the plate conveyor belt 2 tensioned during the material clamping step.

[0038] Among them, the U-shaped frame 3 also includes: an H slider 301, an H slider 301 is slidably arranged in the middle of the U-shaped frame 3, and a lifting plate 302 is fixedly arranged in the middle of two rows of H sliders 301; a connecting bar 303, a connecting bar 303 is fixedly arranged on the outer side of the two rows of H sliders 301, and a positioning cylinder 304 is rotatably arranged in the middle of the bottom of the connecting bar 303 through a hinge connection, and the other end of the positioning cylinder 304 is rotatably arranged on the top of the base 1 through a hinge connection and installed in an inclined state.

[0039] refer to Figure 7 By setting the H slider 301, the connecting bar 303 and the positioning cylinder 304, a lifting mechanism is formed according to the principle of the crank slider mechanism, which can realize the lifting of the lifting plate 302. By placing the lifting plate 302 on the mold, it can provide pressure bearing capacity and lift the mold to facilitate subsequent material feeding.

[0040] The containing bin 4 further comprises: a melting bin 401, wherein the melting bin 401 is integrally arranged in the middle of the top of the containing bin 4, a heater A404 is fixedly arranged inside the melting bin 401 through an insulating graphite bracket, and a central hole plate 6 is fixedly arranged at the bottom of the melting bin 401; a sealing plate 402, wherein the right side of the containing bin 4 is an opening structure, and a sealing plate 402 is sealed outside the opening structure through bolts and rubber rings; an isolation plate 7 is fixedly arranged on the inner side of the sealing plate 402; a lifting cylinder 403, wherein four groups of lifting cylinders 403 are fixedly arranged around the top of the containing bin 4, and the lifting cylinder 4 A top cover 5 is fixedly provided on the top of 03, and a sealing ring is provided on the bottom of the top cover 5; a discharge pipe 405, a cylindrical structure is integrally provided in the middle of the bottom of the accommodating bin 4, a discharge pipe 405 is integrally provided on the right side of the cylindrical structure, the discharge pipe 405 is a double-layer structure and tilted downward; a trapezoidal bin 406, a trapezoidal bin 406 is fixedly provided on the right end of the discharge pipe 405, and a discharge interface 407 is connected in the middle of the bottom of the trapezoidal bin 406; a residual bin 408, a residual bin 408 is connected to the front side of the trapezoidal bin 406, and the main body of the residual bin 408 is a bottled structure tilted forward.

[0041] refer to Figure 8 The discharge pipe 405 can provide a discharge function, and the surplus bin 408 can store excess molten iron during pouring, thereby avoiding condensation inside the discharge pipe 405.

[0042] Among them, the top cover 5 also includes: a heater B501, a heater B501 is suspended in the middle of the bottom of the top cover 5 through an insulating graphite rod; a loading barrel 502, a loading barrel 502 is suspended at the bottom of the top cover 5, and the height of the loading barrel 502 is half the height of the melting bin 401; the bottom end of the loading barrel 502 does not contact the center hole plate 6; a liquid outlet 503, the inner bottom surface of the loading barrel 502 is set as a conical structure with a middle height, and the taper is 1-1.5°, and a liquid outlet 503 is opened on the outer periphery of the bottom of the loading barrel 502.

[0043] refer to Figure 5 By setting up the charging barrel 502, the iron material can be carried, and the molten iron can be discharged from the liquid outlet 503 after melting.

[0044] Among them, the isolation plate 7 also includes: an overflow ring 701, two groups of overflow rings 701 are inlaid on the inner side of the top of the isolation plate 7, the two groups of overflow rings 701 are parallel, and the back side of the overflow ring 701 is connected to electricity; a circular hole is opened in the middle of the bottom of the isolation plate 7; a crucible 8 is arranged on the top of the isolation plate 7, the crucible 8 is cylindrical, and the diameter of the crucible 8 is smaller than the diameter of the overflow ring 701; two groups of slots are opened at the bottom of the crucible 8; a cylindrical structure is integrally arranged in the middle of the bottom of the crucible 8, and the bottom cylinder of the crucible 8 fits in the bottom cylinder of the containing bin 4.

[0045] refer to Figure 5By setting the overflow ring 701, a normally closed circuit can be formed. When the crucible 8 is damaged and the molten iron flows out, the overflow ring 701 will be connected, and then the circuit will be connected to sound an alarm, which can remind of processing accidents. The material of the isolation plate 7 is boron nitride. Boron nitride is a crystal composed of nitrogen atoms and boron atoms. It has high thermal conductivity, high resistivity, high mobility, low dielectric constant, high breakdown electric field, can achieve dual-type doping and has good stability. The overflow ring 701 monitoring effect that can be achieved by using high resistivity.

[0046] Among them, a cylindrical plug 10 is fixedly arranged on the top of the feeding cylinder 9, and a limiting valve 1001 is fixedly arranged in the middle of the top of the cylindrical plug 10. The main body of the limiting valve 1001 is a cylindrical structure, and a through groove is opened in the middle of the limiting valve 1001; the cylindrical plug 10 is slidably arranged in the bottom cylinder of the containing bin 4; the limiting valve 1001 is slidably arranged in the bottom cylinder of the crucible 8.

[0047] refer to Figure 5 By setting the limiting valve 1001, the function of controlling the discharge of materials can be provided. By raising and lowering the limiting valve 1001, the molten iron can be input into the trapezoidal bin 406, thereby preventing the air from entering the internal part of the equipment during the injection molding process and achieving an anti-oxidation environment.

[0048] Working principle: Place the iron material in the charging barrel 502 in advance, set the mold on the top of the plate conveyor belt 2, retract the lifting cylinder 403 to close the top cover 5, turn on the heater A404 and the heater B501 for heating, melt the iron material for subsequent casting, and the molten iron is discharged from the liquid outlet 503 on the top of the central hole plate 6 after melting, filtered and falls into the crucible 8, completing the recasting step.

[0049] Start the alignment cylinder 304, use the H slider 301, the connecting bar 303 and the alignment cylinder 304 to form a lifting mechanism, lift the lifting plate 302, lift a group of molds, and connect the mold openings to the outside of the discharge interface 407, and then shrink the cylindrical piston 10 to intercept part of the molten iron with the limiting valve 1001, and input the molten iron into the discharge pipe 405, flow into the discharge pipe 405, and further enter the discharge interface 407; in the event of a calculation problem causing the molten iron stock to overflow the mold, the molten iron will flow into the residual bin 408 for storage to avoid blockage; the discharge interface 407 needs to be replaced after each furnace opening, and the residual bin 408 is selectively replaced depending on the stock.

[0050] While the lifting plate 302 is rising, the movable shaft frame 202 and the tensioning guide rod 203 are moved backward by tensioning, and the movable shaft frame 202 and the tensioning guide rod 203 provide rebound force through the spring and the self-locking block 205 to keep the plate conveyor belt 2 tensioned; after one group of molds is cast, the motor is started to feed the plate conveyor belt 2 forward to change groups.

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A metal iron casting processing device adapted to an anti-oxidation environment, characterized in that: include: A base, wherein two sets of docking plates are fixedly arranged at the front and rear ends of the right side of the base; A plate conveyor belt, wherein the plate conveyor belt is rotatably arranged outside the two sets of rollers, and the rear roller is rotatably arranged on the top of the rear docking plate through a bracket; The plate conveyor belt also includes: The movable shaft frame has two sets of movable shaft frames rotatably arranged at both ends of the front roller, and the movable shaft frames are slidably arranged on the top of the front docking plate through guide rails; A tensioning guide rod is fixedly arranged in the middle of the rear end of the movable shaft frame, and an alignment strip is arranged outside the tensioning guide rod; Self-locking blocks, two sets of self-locking blocks are fixedly arranged on the top of the front docking plate, and the tensioning guide rod passes through the alignment strip and is sleeved with a spring and is slidably connected with the self-locking blocks; U-shaped frames, the number of which is set to six groups, and the six groups of U-shaped frames are fixedly arranged in two rows on the top right side of the base; The U-shaped frame also includes: H sliders, H sliders are slidably arranged in the middle of the U-shaped frame, and lifting plates are fixedly arranged in the middle of the two rows of H sliders; A connecting bar is fixedly arranged on the outer sides of the two rows of H sliding blocks, and a positioning cylinder is rotatably arranged at the middle of the bottom of the connecting bar through a hinge connection, and the other end of the positioning cylinder is rotatably arranged at the top of the base through a hinge connection and installed in an inclined state; A containing chamber, wherein the containing chamber is fixedly arranged on the top of the base through a bracket, a vacuum pump is connected to the rear side of the containing chamber, and a circulating water channel is arranged in the integral wall of the containing chamber; The storage compartment also includes: A melting chamber is integrally provided in the middle of the top of the containing chamber, a heater A is fixedly provided inside the melting chamber through an insulating graphite bracket, and a central orifice plate is fixedly provided at the bottom of the melting chamber; Sealing plate: the right side of the receiving chamber is an opening structure, and a sealing plate is provided outside the opening structure through bolts and rubber rings for sealing; an isolation plate is fixedly provided inside the sealing plate; Lifting cylinders: four groups of lifting cylinders are fixedly arranged around the top of the accommodating bin, a top cover is fixedly arranged on the top of the lifting cylinder, and a sealing ring is arranged at the bottom of the top cover; The isolation board comprises: Overflow rings: two sets of overflow rings are embedded on the inner side of the top of the isolation plate. The two sets of overflow rings are parallel, and the back side of the overflow rings is connected to electricity; A circular hole is provided in the middle of the bottom of the isolation plate; A crucible is arranged on the top of the isolation plate. The crucible is cylindrical and has a diameter smaller than that of the overflow ring. Two groups of slots are provided at the bottom of the crucible. A cylindrical structure is integrally arranged in the middle of the bottom of the crucible. The bottom cylinder of the crucible fits in the bottom cylinder of the containing bin. A feeding cylinder, which is fixedly arranged in the middle of the top of the base; The storage compartment also includes: A discharge pipe, a cylindrical structure is integrally arranged in the middle of the bottom of the storage bin, and a discharge pipe is integrally arranged on the right side of the cylindrical structure. The discharge pipe is a double-layer structure and tilted downward; Trapezoidal bin: the right end of the discharge pipe is fixed with a trapezoidal bin, and the middle of the bottom of the trapezoidal bin is connected with a discharge interface; The residual bin is connected to the front side of the trapezoidal bin, and the residual bin body is a bottled structure tilted forward. The top cover also includes: Heater B: Heater B is suspended in the middle of the bottom of the top cover through an insulating graphite rod; A charging barrel is suspended at the bottom of the top cover, and the height of the charging barrel is half of the height of the melting bin; the bottom end of the charging barrel does not contact the central hole plate; Liquid outlet hole: the inner bottom surface of the charging barrel is set as a conical structure with a middle height, and the taper is 1-1.5°. The outer periphery of the bottom of the charging barrel is provided with a liquid outlet hole; A cylindrical plug is fixedly arranged on the top of the feeding cylinder, and a limiting valve is fixedly arranged in the middle of the top of the cylindrical plug. The limiting valve body is a cylindrical structure, and a through groove is opened in the middle of the limiting valve; the cylindrical plug is slidably arranged in the bottom cylinder of the accommodating bin; the limiting valve is slidably arranged in the bottom cylinder of the crucible.

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