CN109501198B

CN109501198B - 3D printing consumables wire drawing device of high accuracy

Info

Publication number: CN109501198B
Application number: CN201811425327.8A
Authority: CN
Inventors: 顾小莉; 梁敏; 许娜; 周聪; 桂凯旋
Original assignee: Anhui Polytechnic University
Current assignee: Anhui Polytechnic University
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2020-12-25
Anticipated expiration: 2038-11-27
Also published as: CN109501198A

Abstract

The invention discloses a high-precision 3D printing consumable wire drawing device which comprises a support, wherein a controller is installed at one end of the top of the support, a fixing cylinder is arranged at the other end of the top of the support, a material collecting part is arranged at the bottom of the fixing cylinder, and a fourth heating pipe is arranged inside the side wall of the fixing cylinder outside the material collecting part. According to the invention, the high-temperature wire can be initially cooled by the liquid wax flowing in the funnel cavity, the annular groove corresponding to the circle guiding roller can lift the wire upwards to further eliminate the influence of gravity on the wire, and the wire can be rounded and rolled, a thin wax protective layer can be formed on the surface of the wire, the condensation speed of the liquid wax on the surface of the wire is accelerated by 3 fans, the wire is prevented from being influenced by gravity in the horizontal direction, the wire is guided into water with the water temperature of 64 ℃, the wax protective layer on the surface of the wire is removed, the wax is recycled, resources are saved, the cross section of the formed wire is prevented from being in a water drop shape or a D shape, the prepared wire is high in roundness and good in uniformity.

Description

3D printing consumables wire drawing device of high accuracy

Technical Field

The invention relates to the field of consumable wire drawing, in particular to a high-precision 3D printing consumable wire drawing device.

Background

The additive manufacturing technology (also called 3D printing) is a method for directly manufacturing a three-dimensional physical entity by adopting a layer-by-layer accumulation mode based on a computer three-dimensional CAD model, can quickly and precisely manufacture parts with any complex shapes and structures on one device, thereby realizing free manufacturing, and compared with the traditional processing technology, the additive manufacturing can reduce the processing cost by more than 20-40 percent, shorten the product research and development period by about 80 percent, and is taken as a prospective and strategic technology, the additive manufacturing has strong engineering applicability and large field span, thereby being very important for the development of future manufacturing industry, especially high-end manufacturing. The fused deposition rapid prototyping (FDM) is a technology for heating, melting and extruding various hot-melt filamentous/powder materials, and has the advantages of simple equipment, clean process, low operation cost, no waste, capability of rapidly constructing hollow parts and the like. Compared with selective laser melting equipment (SLM) for military industry, the FDM printer is low in price, easy to popularize and applicable to civil industries such as direct manufacture of artware, molds and automobile parts as soon as possible.

At present, domestic 3D printing consumables still adopt traditional extrusion, cooling, wire winding technology, because 3D printing consumables require very strictly to the line footpath of silk material, mostly adopt 1.75 +/-0.02 mm's specification on the market at present, so high accuracy requirement, wire drawing technology has strict requirement, especially to materials such as crystallization or semi-crystalline polypropylene, polyamide, high temperature melting back viscosity is lower, in traditional horizontal wire drawing technology, because the influence of gravity, the silk material cross-section of formation is mostly water droplet type or "D" font.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a high-precision 3D printing consumable wire drawing device to solve the problems in the background technology.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

the high-precision 3D printing consumable drawing device comprises a support, a controller is installed at one end of the top of the support, a fixed cylinder is arranged at the other end of the top of the support, a material collecting part is arranged at the bottom of the fixed cylinder, a fourth heating pipe is arranged inside a side wall of the fixed cylinder outside the material collecting part and electrically connected with the controller, a material guide cylinder is installed on the inner side wall of the fixed cylinder above the material collecting part through 2 bearing seats, a water bath cavity is arranged inside a side wall of the material guide cylinder, a plurality of second heating pipes are arranged inside the water bath cavity at equal intervals and electrically connected with the controller, a second temperature sensor is arranged inside the water bath cavity, the output end of the second temperature sensor is electrically connected with the input end of the controller, an overflow groove is formed in the side wall of the material guide cylinder above the water bath cavity, a hopper cavity, a cladding channel and a circular guide cavity are sequentially arranged on the inner side of the material, The guide circular cavity is communicated, an extruder is arranged right above the funnel cavity, an extrusion port of the extruder is positioned at the position of the central line of the funnel cavity, a second gear is arranged on the outer side wall of the guide circular cylinder outside the cladding channel, a first motor is fixed on the inner side wall of a fixed cylinder on one side of the second gear and is electrically connected with the controller, the output end of the first motor is fixedly connected with a first gear, the first gear is mutually meshed with the second gear, 3 guide circular rollers are vertically arranged on two sides inside the guide circular cavity, an annular groove is arranged on the outer side of each guide circular roller, the output end of each guide circular roller extends to one side of the fixed cylinder and is fixedly connected with a third gear, a fourth motor is fixed on the outer side wall of the fixed cylinder above the third gear and is electrically connected with the controller, a fourth gear is fixed on the output end of the fourth motor, and a chain is connected between the outer side of the fourth gear and the outer side of the corresponding third gear, the top of one side of the fixed cylinder is welded with a storage box, a plurality of third heating pipes are arranged in the side wall of the storage box at equal intervals, the third heating pipes are electrically connected with a controller, the top end of the side of the storage box, which is close to the guide cylinder, is provided with a connecting pipe, one end of the connecting pipe, which is far away from the storage box, extends into the overflow trough, the outer side wall of the fixed cylinder below the storage box is fixed with a water suction pump, the water suction pump is electrically connected with the controller, an input pipe of the water suction pump extends to the bottom end of the interior of the material collecting part, an output pipe of the water suction pump extends to the bottom end of the interior of the storage box, the top of the support at one side of the fixed cylinder is provided with a heating box, the interior of the side wall of the heating box is provided with a plurality of first heating pipes, the first heating pipes are electrically connected with the controller, the heating cabinet internally mounted of fourth leading wheel below has the third leading wheel, the inside baffle that is equipped with of heating cabinet that fourth leading wheel one side was kept away from to the third leading wheel, the inside fifth leading wheel that is equipped with of heating cabinet that third leading wheel one side was kept away from to the baffle, the inside first leading wheel that is equipped with of heating cabinet of fifth leading wheel top, the welding has the bracing piece between heating cabinet and the solid fixed cylinder, and the equidistant 3 fans that are equipped with on the bracing piece, the fan is connected with the controller electricity, the support top that solid fixed cylinder one side was kept away from to the heating cabinet is equipped with the support frame, and one side of support frame installs the second motor, the second motor is connected with the controller electricity, the output of second motor extends to the inside fixedly connected with wire winding axle.

Preferably, a fifth guide wheel is arranged inside the fixed cylinder below the guide cylinder, and a third through hole is formed in the side wall of the fixed cylinder on one side of the fifth guide wheel.

Preferably, the top of both sides of the heating box is provided with a second through hole.

Preferably, the bottom of the fifth guide wheel, the third through hole, the second through hole, the top of the fourth guide wheel, the top of the first guide wheel and the top of the winding shaft are located at the same height.

Preferably, the third guide wheel and the fifth guide wheel are located at the same height, and a first through hole is formed in a partition plate between the third guide wheel and the fifth guide wheel.

Preferably, the radius of the annular groove of the rounding roller is 1.76mm, and the radius of the extrusion opening of the extruder is 1.75 mm.

Preferably, the collecting part is funnel-shaped.

3. Advantageous effects

1. According to the invention, the inner side of the guide cylinder is sequentially provided with the funnel cavity, the coating channel and the round guide cavity from top to bottom, liquid wax is filled in the funnel cavity, the liquid wax flows into the round guide cavity from the funnel cavity through the coating channel, and when wires extruded by an extruder sequentially pass through the funnel cavity, the coating channel and the round guide cavity, as the melting point of the liquid wax is 57-63 ℃, the high-temperature wires can be preliminarily cooled, and the liquid wax can form a paraffin layer on the surfaces of the wires, so that the function of a protective film is achieved, the wires are prevented from being influenced by gravity, and the cross section of the formed wires is of a water drop type.

2. The invention is characterized in that the outer side wall of a guide cylinder covering the outer side of a channel is provided with a second gear, the inner side wall of a fixed cylinder at one side of the second gear is fixed with a first motor, the output end of the first motor is fixedly connected with a first gear, the first gear and the second gear are meshed with each other, 3 guide circular rollers are vertically arranged at two sides of the inner part of the guide circular cavity, the outer side of each guide circular roller is provided with an annular groove, the output end of each guide circular roller extends to one side of the fixed cylinder and is fixedly connected with a third gear, the outer side wall of the fixed cylinder above the third gear is fixed with a fourth motor, the output end of the fourth motor is fixed with a fourth gear, a chain is connected between the outer side of the fourth gear and the outer side of the corresponding third gear, wires enter the guide circular cavity and pass through the annular grooves of the 3 guide circular rollers arranged at two sides of the guide circular cavity, because the annular groove of the guide circular roller has a radius of 1, and the output of 2 fourth motors rotates and drives 2 fourth gears and rotates towards the reverse rotation opposite to the direction of motion of the silk material, and the fourth gear rotates and drives the third gear through the chain and rotate, make 3 circle guide rollers that circle guide cavity both sides set up rotate reverse and silk material direction of motion, and simultaneously, the output of first motor rotates and drives through first gear and lead the whole emergence rotation of drum, so when the silk material passes through the annular groove of 3 circle guide rollers that circle guide cavity both sides set up, at this moment the annular groove of 2 corresponding circle guide rollers, can play the power of upwards holding up to the silk material and further eliminate the influence of gravity to the silk material, and played the purpose of circle guide rounding again to the silk material, the silk material circularity has been improved, can make the silk material surface form the thin wax protective layer of one deck simultaneously.

3. According to the invention, the water bath cavity is arranged in the side wall of the guide cylinder, the plurality of second heating pipes are arranged in the water bath cavity at equal intervals, the second temperature sensor is arranged in the water bath cavity, the guide cylinder is heated in a water bath manner, and meanwhile, the temperature is detected, so that the liquid wax on the inner side of the guide cylinder is prevented from being solidified.

4. The invention is characterized in that an overflow groove is arranged on the side wall of a guide cylinder above a water bath cavity, a material collecting part is arranged at the bottom of a fixed cylinder, a fourth heating pipe is arranged inside the side wall of the fixed cylinder outside the material collecting part, a material storage box is welded at the top of one side of the fixed cylinder, a plurality of third heating pipes are arranged at equal intervals inside the side wall of the material storage box, a connecting pipe is arranged at the top end of one side of the material storage box close to the guide cylinder, one end of the connecting pipe far away from the material storage box extends into the overflow groove, a water suction pump is fixed on the outer side wall of the fixed cylinder below the material storage box, an input pipe of the water suction pump extends to the bottom end inside the material collecting part, an output pipe of the water suction pump extends to the bottom end inside the material storage box, the water wax at the bottom of the material collecting part is guided into the material storage box by the water, the impact force of the entering liquid wax is prevented from being overlarge, the liquid wax is ensured to flow uniformly and stably, and the phenomenon of wire diameter fluctuation caused by liquid wax fluctuation can be effectively avoided.

5. According to the invention, the supporting rods are welded between the heating box and the fixed cylinder, and 3 fans are arranged on the supporting rods at equal intervals, so that liquid wax is quickly condensed on the surfaces of wires when the wires pass above the fans, the wires are prevented from being influenced by gravity in the horizontal direction, the cross sections of the wires are in a water drop shape or a D shape, and the wires are cooled again.

6. The invention is characterized in that a plurality of first heating pipes are arranged inside the side wall of a heating box, a first temperature sensor is arranged on one side inside the heating box, a fourth guide wheel is arranged on one side of the top end inside the heating box, which is close to the first temperature sensor, a third guide wheel is arranged inside the heating box below the fourth guide wheel, a partition plate is arranged inside the heating box, which is far away from the fourth guide wheel, of the third guide wheel, a fifth guide wheel is arranged inside the heating box, which is far away from the third guide wheel, of the partition plate, a first guide wheel is arranged inside the heating box above the fifth guide wheel, the first heating pipes heat water in the heating box, the first temperature sensor detects water in the heating box, so that the water temperature of the heating box is kept at 64 ℃, when wires enter the heating box, the wires are basically solidified and molded after air cooling, so that the wires enter the water with the temperature of 64 ℃ and can form a wax protective layer on the surfaces of, dissolve fast, because the wax is insoluble in water, so can float on the surface of water, and the heating cabinet baffle divide into 2 parts with the heating cabinet, make the wax melt and float on the surface of water of baffle one side, when preventing that the silk material from deriving the heating cabinet, be stained with paraffin on the silk material.

In summary, the invention can carry out primary cooling on the high-temperature wire material through the liquid wax flowing in the funnel cavity, the liquid wax can form a paraffin layer on the surface of the wire material to play a role of a protective film, the annular grooves of the 3 rounding guide rollers arranged at the two sides of the rounding guide cavity can play a role of supporting the wire material upwards to further eliminate the influence of gravity on the wire material, and also play a role of rounding the wire material, and can form a thin wax protective layer on the surface of the wire material to accelerate the solidification speed of the liquid wax, and simultaneously, the liquid wax is recycled, so that the liquid wax slowly and uniformly enters the funnel cavity to prevent the entering liquid wax from having overlarge impact force, the liquid wax flows uniformly and stably, the wire diameter fluctuation phenomenon caused by the fluctuation of the liquid wax can be effectively avoided, the solidification speed of the liquid wax on the surface of the wire material is accelerated through the 3 fans, and the influence of the gravity on the wire material in the horizontal direction is prevented, the silk material is led into water with the water temperature of 64 ℃, the wax protective layer on the surface of the silk material is removed, the wax is recycled, the resources are saved, the prepared silk material has high roundness and good uniformity, and the section of the formed silk material is prevented from being in a water drop shape or a D shape.

Drawings

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

FIG. 2 is a front view of a guide cylinder of the present invention;

FIG. 3 is a schematic view of the structure of the rounding roller of the present invention

FIG. 4 is a schematic view of the rotation direction of the rounding roller according to the present invention.

Reference numerals: 1-a winding shaft, 2-a support frame, 3-a first guide wheel, 4-a clapboard, 41-a first through hole, 5-a third guide wheel, 6-a heating box, 61-a first heating pipe, 62-a first temperature sensor, 63-a second through hole, 7-a support rod, 8-a fifth guide wheel, 9-a fixed cylinder, 91-a third through hole, 10-a second heating pipe, 11-a bearing seat, 12-a first motor, 13-a first gear, 14-a cladding channel, 15-a guide cylinder, 16-a funnel cavity, 17-an extruder, 18-an overflow groove, 19-a connecting pipe, 20-a storage box, 21-a second gear, 22-a third heating pipe, 23-a water bath cavity and 24-a second temperature sensor, 25-rounding roller, 251-annular groove, 26-rounding cavity, 27-water pump, 28-aggregate part, 29-fourth heating pipe, 30-bracket, 31-fan, 32-fourth guide wheel, 33-fifth guide wheel, 34-second motor, 35-third gear, 36-fourth gear, 37-fourth motor, 38-chain and 39-controller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1-4, the high-precision 3D printing consumable wire drawing device comprises a bracket 30, a controller 39 is installed at one end of the top of the bracket 30, a fixed cylinder 9 is installed at the other end of the top of the bracket 30, a material collecting part 28 is installed at the bottom of the fixed cylinder 9, the material collecting part 28 is funnel-shaped, a fourth heating pipe 29 is installed inside the side wall of the fixed cylinder 9 outside the material collecting part 28, the fourth heating pipe 29 is electrically connected with the controller 39, a guide cylinder 15 is installed on the inner side wall of the fixed cylinder 9 above the material collecting part 28 through 2 bearing seats 11, a water bath cavity 23 is installed inside the side wall of the guide cylinder 15, a plurality of second heating pipes 10 are arranged inside the water bath cavity 23 at equal intervals, the second heating pipes 10 are electrically connected with the controller 39, a second temperature sensor 24 is arranged inside the water bath cavity 23, the output end of the second temperature sensor 24 is electrically connected with the input end of the controller 39, the inner side of the guide cylinder 15 is sequentially provided with a funnel cavity 16, a coating channel 14 and a round guide cavity 26 from top to bottom, the coating channel 14 is respectively communicated with the funnel cavity 16 and the round guide cavity 26, an extruder 17 is arranged right above the funnel cavity 16, an extrusion opening of the extruder 17 is positioned at the central line position of the funnel cavity (16), the outer side wall of the round guide cylinder 15 at the outer side of the coating channel 14 is provided with a second gear 21, the inner side wall of a fixed cylinder 9 at one side of the second gear 21 is fixedly provided with a first motor 12, the first motor 12 is electrically connected with a controller 39, the output end of the first motor 12 is fixedly connected with a first gear 13, the first gear 13 is mutually meshed with the second gear 21, two sides in the round guide cavity 26 are vertically provided with 3 round guide rollers 25, the outer side of each round guide roller 25 is provided with an annular groove 251, the radius of the annular groove 251 of each round guide roller 25 is 1.76mm, the radius of the extrusion opening of the extruder 17 is 1., the output end of the round guide roller 25 extends to one side of the fixed cylinder 9, and is fixedly connected with a third gear 35, the outer side wall of the fixed cylinder 9 above the third gear 35 is fixed with a fourth motor 37, the fourth motor 37 is electrically connected with a controller 39, the output end of the fourth motor 37 is fixed with a fourth gear 36, a chain 38 is connected between the outer side of the fourth gear 36 and the outer side of the corresponding third gear 35, the top of one side of the fixed cylinder 9 is welded with a storage box 20, a plurality of third heating pipes 22 are arranged in the side wall of the storage box 20 at equal intervals, the third heating pipes 22 are electrically connected with the controller 39, the top end of one side of the storage box 20 close to the guide cylinder 15 is provided with a connecting pipe 19, one end of the connecting pipe 19 far away from the storage box 20 extends to the inside of the overflow groove 18, the outer side wall of the fixed cylinder 9 below the storage box 20 is fixed with a water suction pump 27, the water suction pump 27 is electrically connected, the output pipe of the water pump 27 extends to the bottom end inside the storage box 20, a fifth guide wheel 8 is arranged inside a fixed cylinder 9 below a guide cylinder 15, a third through hole 91 is arranged on the side wall of the fixed cylinder 9 on one side of the fifth guide wheel 8, a heating box 6 is arranged on the top of a support 30 on one side of the fixed cylinder 9, second through holes 63 are arranged on the tops of the two sides of the heating box 6, the bottom of the fifth guide wheel 8, the third through hole 91, the second through hole 63, the top of a fourth guide wheel 32, the top of a first guide wheel 3 and the top of a winding shaft 1 are positioned at the same height, a plurality of first heating pipes 61 are arranged inside the side wall of the heating box 6, the first heating pipes 61 are electrically connected with a controller 39, a first temperature sensor 62 is arranged on one side inside the heating box 6, the output end of the first temperature sensor 62 is electrically connected with the input end of the controller 39, a fourth guide wheel 32 is arranged on one side, close, a third guide wheel 5 is arranged in the heating box 6 below the fourth guide wheel 32, a partition plate 4 is arranged in the heating box 6 at one side of the third guide wheel 5, which is far away from the fourth guide wheel 32, a fifth guide wheel 33 is arranged in the heating box 6 at one side of the partition plate 4, which is far away from the third guide wheel 5, the third guide wheel 5 and the fifth guide wheel 33 are positioned at the same height, a first through hole 41 is arranged on the partition plate 4 between the third guide wheel 5 and the fifth guide wheel 33, a first guide wheel 3 is arranged in the heating box 6 above the fifth guide wheel 33, a support rod 7 is welded between the heating box 6 and the fixed

cylinder

9, 3 fans 31 are arranged on the support rod 7 at equal intervals, the fans 31 are electrically connected with a controller 39, a support frame 2 is arranged at the top of a support frame 30 at one side of the heating box 6, which is far away from the fixed cylinder 9, a second motor 34 is arranged at one side of the support frame 2, and the, the output end of the second motor 34 extends to the inside of the support frame 2 and is fixedly connected with the winding shaft 1.

The specific application process comprises the following steps:

the funnel cavity 16 is internally filled with liquid wax, the liquid wax flows into the round guide cavity 26 from the funnel cavity 16 through the coating channel 14, when wires extruded by the extruder 17 pass through the funnel cavity 16 and the coating channel 14, the melting point of the liquid wax is 57-63 ℃, high-temperature wires can be preliminarily cooled, the liquid wax can form a paraffin layer on the surfaces of the wires to play a role of a protective film, the wires are prevented from being influenced by gravity, the cross section of the formed wires is of a water drop type, when the wires extruded by the extruder 17 enter the round guide cavity 26 and pass through the annular grooves 251 of 3 round guide rollers 25 arranged on two sides of the round guide cavity 26, the controller 39 controls the output ends of 2 fourth motors 37 to rotate to drive the 2 fourth gears 36 to rotate in the opposite direction to the moving direction of the wires, the fourth gears 36 rotate to drive the third gears 35 to rotate through the chains 38, so that the 3 round guide rollers 25 arranged on two sides of the round guide cavity 26 rotate in the opposite direction to the moving direction of the wires, meanwhile, the output end of the first motor 12 rotates to drive the guide cylinder to integrally rotate through the first gear 13, so when the wire passes through the annular grooves 251 of the 3 guide circular rollers 25 arranged at the two sides of the guide circular cavity 26, the annular grooves 251 of the 2 corresponding guide circular rollers 25 can lift the wire upwards to further eliminate the influence of gravity on the wire, and also achieve the purpose of guiding and rounding the wire, so that the roundness of the wire is improved, meanwhile, because the radius of the annular grooves 251 of the guide circular rollers 25 is 1.85mm, and the radius of an extrusion opening of the extruder 17 is 1.75mm, a thin wax protective layer can be formed on the surface of the wire, the paraffin condensation speed is increased, the water drop type is prevented from being generated during the cooling of the wire, the water temperature is detected by the second temperature sensor 24 arranged in the water bath cavity 23 in the process, the information is transmitted to the controller 39, the controller 39 controls the second heating pipe 10 to heat the water in the water bath cavity 23, the temperature is kept at a proper temperature, the liquid wax on the inner side of the guide cylinder is prevented from being solidified, the liquid wax flows into the guide cylinder 26 from the funnel cavity 16 through the coating channel 14 and drops into the material collecting part 28, the water suction pump 27 feeds the liquid wax at the bottom of the material collecting part 28 into the material storage box 20, when the liquid level of the liquid wax in the material storage box 20 reaches the position of the connecting pipe 19, the liquid wax enters the overflow groove 18 through the connecting pipe 19, when the liquid wax in the overflow groove 18 is filled, the liquid wax overflows and flows into the funnel cavity 16, the excessive impact force of the entered liquid wax is prevented, the uniform and stable flow of the liquid wax is ensured, the phenomenon of wire diameter fluctuation caused by the fluctuation of the liquid wax can be effectively avoided, then the wire is guided into the fixed cylinder 9 through the fifth guide wheel 8 and the third through hole 91, when the wire passes through the upper part of the support rod 7, the controller 39 controls the rotation of the 3 fans 31 to enable the liquid wax to be quickly condensed, the transversal water droplet type or the D style of calligraphy of making the silk material, cool off the silk material once more simultaneously, then the silk material is through passing through the fourth leading wheel 32 in proper order, third leading wheel 5, export after first through-hole 41 and first leading wheel 3 get into heating cabinet 6, at last by the rolling to the reel 1, because the silk material has solidified the shaping basically after the forced air cooling, so the silk material gets into the inside temperature of heating cabinet 6 is 64 ℃ aquatic, can make the wax protective layer on silk material surface, dissolve fast, because the wax is insoluble in water, so can float on the surface of water, and heating cabinet 6 baffle 4 divide into 2 parts with the heating cabinet, make the wax melt the surface of water that floats in baffle 4 one side, when preventing the silk material to derive heating cabinet 6, be stained with paraffin on the silk material.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The high-precision 3D printing consumable wire drawing device comprises a support (30) and is characterized in that a controller (39) is installed at one end of the top of the support (30), a fixed barrel (9) is arranged at the other end of the top of the support (30), a material collecting part (28) is arranged at the bottom of the fixed barrel (9), a fourth heating pipe (29) is arranged inside the side wall of the fixed barrel (9) outside the material collecting part (28), the fourth heating pipe (29) is electrically connected with the controller (39), a guide cylinder (15) is installed on the inner side wall of the fixed barrel (9) above the material collecting part (28) through 2 bearing seats (11), a water bath cavity (23) is arranged inside the side wall of the guide cylinder (15), a plurality of second heating pipes (10) are arranged inside the water bath cavity (23) at equal intervals, the second heating pipes (10) are electrically connected with the controller (39), and a second temperature sensor (24) is arranged inside the water bath cavity (23, the output end of the second temperature sensor (24) is electrically connected with the input end of the controller (39), an overflow groove (18) is arranged on the side wall of the guide cylinder (15) above the water bath cavity (23), the inner side of the guide cylinder (15) is sequentially provided with a hopper cavity (16), a coating channel (14) and a round guide cavity (26) from top to bottom, the coating channel (14) is respectively communicated with the hopper cavity (16) and the round guide cavity (26), an extruder (17) is arranged right above the hopper cavity (16), an extrusion opening of the extruder (17) is positioned at the central line position of the hopper cavity (16), a second gear (21) is arranged on the outer side wall of the guide cylinder (15) outside the coating channel (14), a first motor (12) is fixed on the inner side wall of the fixed cylinder (9) on one side of the second gear (21), the first motor (12) is electrically connected with the controller (39), and the output end of the first motor (12) is fixedly connected with a first gear (13), and the first gear (13) and the second gear (21) are meshed with each other, 3 circle guiding rollers (25) are vertically arranged on two sides of the interior of the circle guiding cavity (26), an annular groove (251) is formed in the outer side of each circle guiding roller (25), the output end of each circle guiding roller (25) extends to one side of the fixed cylinder (9), a third gear (35) is fixedly connected with the output end of the fourth motor (37), a fourth motor (37) is fixed on the outer side wall of the fixed cylinder (9) above the third gear (35), the fourth motor (37) is electrically connected with the controller (39), a fourth gear (36) is fixed at the output end of the fourth motor (37), a chain (38) is connected between the outer side of the fourth gear (36) and the outer side of the corresponding third gear (35), a material storage box (20) is welded at the top of one side of the fixed cylinder (9), a plurality of third heating pipes (22) are arranged in the side wall of the material storage box (20) at, the third heating pipe (22) is electrically connected with the controller (39), the top end of one side, close to the guide cylinder (15), of the storage box (20) is provided with a connecting pipe (19), one end, far away from the storage box (20), of the connecting pipe (19) extends into the overflow groove (18), the outer side wall of the fixed cylinder (9) below the storage box (20) is fixedly provided with a water suction pump (27), the water suction pump (27) is electrically connected with the controller (39), the input pipe of the water suction pump (27) extends to the bottom end inside the material collecting part (28), the output pipe of the water suction pump (27) extends to the bottom end inside the storage box (20), the top of the support (30) on one side of the fixed cylinder (9) is provided with the heating box (6), the inside of the side wall of the heating box (6) is provided with a plurality of first heating pipes (61), the first heating pipe (61) is electrically connected with the controller (39), one side inside the heating box, the output end of the first temperature sensor (62) is electrically connected with the input end of the controller (39), a fourth guide wheel (32) is arranged on one side, close to the first temperature sensor (62), of the top end in the heating box (6), a third guide wheel (5) is arranged inside the heating box (6) below the fourth guide wheel (32), a partition plate (4) is arranged inside the heating box (6) on one side, far away from the fourth guide wheel (32), of the third guide wheel (5), a fifth guide wheel (33) is arranged inside the heating box (6) on one side, far away from the third guide wheel (5), of the partition plate (4), a first guide wheel (3) is arranged inside the heating box (6) above the fifth guide wheel (33), a support rod (7) is welded between the heating box (6) and the fixed cylinder (9), 3 fans (31) are arranged on the support rod (7) at equal intervals, and the fans (31) are electrically connected with the controller (39), support (30) top of keeping away from a fixed section of thick bamboo (9) one side is equipped with support frame (2) in heating cabinet (6), and installs second motor (34) in one side of support frame (2), and second motor (34) are connected with controller (39) electricity, and the output of second motor (34) extends to support frame (2) inside fixedly connected with wire winding axle (1).

2. The high-precision drawing device for the 3D printing consumables according to claim 1, wherein a fifth guide wheel (8) is arranged inside a fixed cylinder (9) below the guide cylinder (15), and a third through hole (91) is formed in the side wall of the fixed cylinder (9) on one side of the fifth guide wheel (8).

3. The high-precision 3D printing consumable drawing device according to claim 1, wherein the top of two sides of the heating box (6) is provided with a second through hole (63).

4. The high-precision 3D printing consumable drawing device according to claims 1-3, wherein the bottom of the fifth guide wheel (8), the third through hole (91), the second through hole (63), the top of the fourth guide wheel (32), the top of the first guide wheel (3) and the top of the winding shaft (1) are located at the same height.

5. The high-precision 3D printing consumable drawing device according to claim 4, wherein the third guide wheel (5) and the fifth guide wheel (33) are located at the same height, and a first through hole (41) is formed in the partition plate (4) between the third guide wheel (5) and the fifth guide wheel (33).

6. The high-precision 3D printing consumable drawing device according to claim 1, wherein the radius of the annular groove (251) of the rounding roller (25) is 1.76mm, and the radius of the extrusion opening of the extruder (17) is 1.75 mm.

7. The high-precision drawing device for the 3D printing consumables according to claim 1, wherein the material collecting part (28) is funnel-shaped.