CN215151868U - 3D printer work or material rest device - Google Patents

Abstract

The utility model relates to the technical field of 3D printing, in particular to a 3D printer material rack device, which comprises a base; the tray is arranged on one side of the base, a plurality of rolling pieces are arranged on one side of the tray close to the base, and the rolling pieces roll on the surface of the base; the tray is fixedly arranged on one side of the tray, which is far away from the base; the rotating shaft sequentially penetrates through the base, the tray and the material tray, and the rotating shaft is rotatably connected with the base. The utility model discloses reduced the charging tray and rotated the frictional force of in-process, reduced the resistance that send a, can be used for supporting heavier consumptive material, reduced the load of extruding a motor to and reduce the moment of torsion requirement of extruding a motor, be favorable to reduction in production cost.

Description

3D printer work or material rest device

Technical Field

The utility model relates to a 3D prints technical field, especially relates to a 3D printer work or material rest device.

Background

The field of 3D printing technology application is becoming wider and wider under the push of computer digital technology intellectualization, especially FDM hot melt technology is getting more and more favored by DIY enthusiasts, and the printing size is also rapidly developing in the direction of pursuing large-size printing or smaller. When the large-size model is printed, the consumable materials with larger weight are needed to avoid frequent material changing due to the use of the conventional 500g or 1kg consumable materials. At present, 5kg and 6kg consumables appear on the market, and the material frame suitable for the consumables is rare, so that the research and development of the material frame device suitable for the consumables are necessary.

The prior art discloses a work or material rest of hanging oneself from a beam formula, the simple operation, but relies on consumptive material centre bore and hanging oneself from a beam relative slip, frictional force increases along with consumptive material weight increase, has increased and has extruded the load that send a motor, only is applicable to lighter weight consumptive material (consumptive material weight is less than or equal to 1kg), is not applicable to heavier consumptive material (consumptive material weight is greater than or equal to 5 kg). Meanwhile, the structure provides higher requirements for the torque of the extruding wire feeding motor, increases the cost and does not accord with economic consideration.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a 3D printer work or material rest device to it is too big to solve the frictional force between current work or material rest and the consumptive material, and has increased and extruded the difficult problem of saying of the work of sending a motor.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a 3D printer work or material rest device, it includes:

a base;

the tray is arranged on one side of the base, a plurality of rolling pieces are arranged on one side of the tray close to the base, and the rolling pieces roll on the surface of the base;

the tray is fixedly arranged on one side of the tray, which is far away from the base;

the rotating shaft sequentially penetrates through the base, the tray and the material tray, and the rotating shaft is rotatably connected with the base.

Through adopting above-mentioned technical scheme, in operation, the consumptive material is installed on the work or material rest, under the effect of extruding a motor that send, the material silk motion of consumptive material drives the consumptive material wholly, charging tray and tray use the pivot to rotate as the axle center is synchronous, because one side that is close to the chassis at the tray sets up a plurality of rolling parts, on the one hand, make work or material rest during operation stationarity better, difficult emergence is rocked, on the other hand, the setting up of rolling part has reduced the frictional force of charging tray rotation in-process, the resistance of sending a silk has been reduced, can be used for supporting heavier consumptive material, reduce the load of extruding a motor that send, and reduce the moment of torsion requirement to extruding a motor, be favorable to reducing production cost.

Furthermore, the base is provided with a central hole for the rotating shaft to pass through, and the inner wall of the central hole is in a sawtooth shape.

Through adopting above-mentioned technical scheme, can reduce the area of contact between base and the pivot, reduce the frictional resistance between base and the pivot and then reduce and send a resistance, make this work or material rest can support heavier consumptive material, further reduce the load of extruding and send a motor, reduce the moment of torsion requirement to extruding and send a motor, reduction in production cost. Specifically, the sawteeth on the inner wall of the central hole are rectangular sawteeth.

Further, the contact surface of the inner wall of the central hole, which is contacted with the rotating shaft, is a smooth surface.

Through adopting above-mentioned technical scheme, be favorable to further reducing the frictional resistance between pivot and the base, and then reduce and send a resistance, make this work or material rest can support heavier consumptive material, further reduce to extrude the load of sending a motor, reduce the moment of torsion requirement to extruding a motor, reduction in production cost.

Further, the roughness of the inner wall of the central hole is not more than 0.8 micron.

Through adopting above-mentioned technical scheme, more be favorable to reducing the frictional resistance between pivot and the base.

Further, a resistance wire is embedded in the base.

Through adopting above-mentioned technical scheme, the base has the heating function, can dry by fire the material to the consumptive material that wets.

Further, a humidity sensor is arranged in the base.

By adopting the technical scheme, the material rack has the function of detecting humidity, and the purposes of automatically heating, drying and heat-insulating material supply can be achieved.

Further, the pivot includes with charging tray joint complex joint portion and the rotating part of being connected with the base rotation.

Through adopting above-mentioned technical scheme, through pivot and charging tray joint cooperation, when making the charging tray rotate, pivot and charging tray rotate in step, the difficult condition that takes place the charging tray and rock makes charging tray work more stable. Specifically, the rotating shaft is a plastic rotating shaft, and is specifically made of POM materials.

Further, the lateral wall of joint portion is equipped with the chucking shell fragment, the one end and the joint portion lateral wall fixed connection of chucking shell fragment, the other end extends the setting to the direction of keeping away from the pivot axis gradually.

Through adopting above-mentioned technical scheme, the joint portion that makes the pivot can be applicable to the charging tray of different specifications, guarantees pivot and charging tray and keeps the state of chucking all the time, makes the charging tray during operation difficult more take place to rock, more is favorable to improving the stability of charging tray during operation.

Further, the surface of the rotating portion is a smooth surface.

Through adopting above-mentioned technical scheme, be favorable to reducing the frictional resistance between base and the rotating part, and then reduce and send a resistance, make this work or material rest can support heavier consumptive material, further reduce the load of extruding a motor, reduce the torque requirement to extruding a motor, reduction in production cost.

Furthermore, a driving piece for driving the rotating shaft to rotate is arranged on one side, far away from the tray, of the base.

Through adopting above-mentioned technical scheme, the driving piece can drive pivot and tray rotation, provides the feed function, prints simultaneously and accomplishes the back, and driving piece drive pivot and tray gyration, rewind consumptive material silk, and bigger rotational friction resistance and inertia can be overcome in the setting of driving piece, support bigger weight consumptive material, and the while gyration is around the silk, need not manual rewind material silk, and is more convenient. Specifically, the driving piece is a motor, and the motor is fixed with the rotating shaft through a coupler.

Further, the material rack device further comprises an outer cover with an opening on one side, the opening of the outer cover is matched with the base in a clamping mode, the tray and the material tray are located in the outer cover, and a discharge hole for the consumable material wire to pass through is formed in the side wall of the outer cover.

Through adopting above-mentioned technical scheme, the setting of dustcoat can prevent that the consumptive material from weing and by impurity pollution such as dust, is favorable to protecting the consumptive material.

Specifically, the base is kept away from the neighboring of tray one side and is set up the spacing ring, the spacing ring is protruding along the direction of keeping away from the base center and is established, the open end butt of dustcoat is in the surface of spacing ring.

Through adopting above-mentioned technical scheme, can prevent because the dustcoat is to the direction radial movement who is close to the base and influence the condition that the charging tray can normally rotate and take place, dustcoat simple to operate is swift, and the setting of spacing ring makes dustcoat and base form closed result, can effectively restrain the consumptive material and wet rotten problem.

Further, the outer cover is a wine red translucent PC outer cover.

Through adopting above-mentioned technical scheme, make the dustcoat can allow red high wavelength light to permeate through, when keeping observing inside consumptive material running state, can effectively completely cut off the shining of low wavelength blue purple light, restrain the consumptive material ageing and deteriorate.

Furthermore, inlay in the discharge gate and be equipped with the cleaning block that is used for carrying out the cleanness to the consumptive material silk surface, be equipped with the perforation that the feed silk passed on the cleaning block.

Through adopting above-mentioned technical scheme, during the use, the perforation of consumptive material silk process cleaning block under the effect of feeding traction force, impurity such as dust greasy dirt on consumptive material silk surface can effectively be cleaned to cleaning block, solves because of impurity or greasy dirt get into the nozzle and melt the intracavity and cause the problem of nozzle end cap or printing the defect. Specifically, the cleaning block is a revolving body sponge block with an I-shaped section.

The utility model has the advantages that:

this work or material rest device during operation, the consumptive material is installed on the work or material rest, under the effect of extruding a motor, the material silk motion of consumptive material drives the consumptive material wholly, charging tray and tray use the pivot to rotate as the axle center is synchronous, the rolling member rolls on the base surface, because one side that is close to the chassis at the tray sets up a plurality of rolling members, on the one hand, make work or material rest during operation stationarity better, be difficult for taking place to rock, on the other hand, the setting up of rolling member has reduced the frictional force of charging tray rotation in-process, the resistance of sending a silk has been reduced, can be used for supporting heavier consumptive material, reduce the load of extruding a motor, and reduce the moment of torsion requirement to extruding a motor, and be favorable to reduction in production cost. The utility model discloses a pivot is in the same place charging tray, tray and base assembly, can avoid the three to along radial drunkenness when pivoting, is favorable to improving the stability of work or material rest during operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a sectional view of a material rest device of the 3D printer according to an embodiment;

fig. 2 is an exploded view of the 3D printer material rest device according to an embodiment;

fig. 3 is a schematic structural diagram of a base of the 3D printer rack device according to the embodiment;

fig. 4 is a schematic structural diagram of a rotating shaft of the 3D printer material rest device according to the embodiment;

fig. 5 is a schematic perspective view of the 3D printer rack device according to an embodiment.

The labels in the figures illustrate: 1. a base; 2. a tray; 3. a rolling member; 4. a material tray; 5. a rotating shaft; 51. a clamping part; 52. a rotating part; 53. clamping the elastic sheet; 6. a central bore; 7. a housing; 71. a limiting ring; 8. a cleaning block; 81. perforating; 82. a foot pad; 9. and (4) a discharge port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

A 3D printer stack apparatus, as shown in fig. 1 and 2, comprising:

a base 1;

the tray 2 is arranged on one side of the base 1, a plurality of rolling pieces 3 are arranged on one side, close to the base 1, of the tray 2, and the rolling pieces 3 roll on the surface of the base 1;

the material tray 4 is fixedly arranged on one side of the tray 2 far away from the base 1;

the rotating shaft 5 sequentially penetrates through the base 1, the tray 2 and the material tray 4, and the rotating shaft 5 is rotatably connected with the base 1.

Through adopting above-mentioned technical scheme, in operation, the consumptive material is installed on the work or material rest, under the effect of extruding a motor, the material silk motion of consumptive material drives the consumptive material wholly, charging tray 4 and tray 2 use pivot 5 to rotate as the axle center is synchronous, rolling member 3 rolls on base 1 surface, because one side that is close to the chassis at tray 2 sets up a plurality of rolling members 3, on the one hand, make work or material rest during operation stationarity better, difficult emergence is rocked, on the other hand, rolling member 3 set up the frictional force that has reduced charging tray 4 and rotate the in-process, the resistance of sending a silk has been reduced, can be used for supporting heavier consumptive material, reduce the load of extruding a motor, and reduce the moment of torsion requirement to extruding a motor, be favorable to reduction in production cost. The utility model discloses a pivot 5 is in the same place charging tray 4, tray 2 and base 1 assembly, can avoid the three to along radial drunkenness when pivoting, is favorable to improving the stability of work or material rest during operation.

Specifically, rolling member 3 is the universal wheel, rolling member 3 passes through the screw to be connected with tray 2, simple to operate, firm reliable, and it is swift to change, maintains simply. In the present embodiment, four rolling members 3 are provided, and four rolling members 3 are uniformly distributed and installed at the bottom of the tray 2.

Further, as shown in fig. 3, the base 1 is provided with a central hole 6 for the rotating shaft 5 to pass through, and an inner wall of the central hole 6 is serrated.

Through adopting above-mentioned technical scheme, can reduce the area of contact between base 1 and the pivot 5, reduce the frictional resistance between base 1 and the pivot 5 and then reduce and send a resistance, make this work or material rest can support heavier consumptive material, further reduce the load of extruding and send a motor, reduce the torque requirement to extruding and send a motor, reduction in production cost. Specifically, the sawteeth on the inner wall of the central hole 6 are rectangular sawteeth.

Further, the contact surface of the inner wall of the central hole 6 and the rotating shaft 5 is a smooth surface.

Through adopting above-mentioned technical scheme, be favorable to further reducing the frictional resistance between pivot 5 and the base 1, and then reduce and send a resistance, make this work or material rest can support heavier consumptive material, further reduce the load of extruding a motor, reduce the moment of torsion requirement to extruding a motor, reduction in production cost.

Further, the roughness of the inner wall of the central hole 6 is not more than 0.8 micron.

Through adopting above-mentioned technical scheme, be favorable to more reducing the frictional resistance between pivot 5 and the base 1.

Further, a resistance wire (not shown in the figure) is embedded in the base 1.

Through adopting above-mentioned technical scheme, base 1 has the heating function, can dry by fire the material to the consumptive material that wets.

Further, a humidity sensor (not shown) is disposed in the base 1.

By adopting the technical scheme, the material rack has the function of detecting humidity, and the purposes of automatically heating, drying and heat-insulating material supply can be achieved.

Further, as shown in fig. 4, the rotating shaft 5 includes a clamping portion 51 that is clamped and matched with the tray 4 and a rotating portion 52 that is rotatably connected with the base 1.

Through adopting above-mentioned technical scheme, through pivot 5 and the cooperation of charging tray 4 joint, when making charging tray 4 rotate, pivot 5 rotates with charging tray 4 is synchronous, and the difficult condition that takes place charging tray 4 and rock makes charging tray 4 work more stable. Specifically, the rotating shaft 5 is a plastic rotating shaft 5, and is specifically made of a POM material.

Further, the lateral wall of joint portion 51 is equipped with chucking shell fragment 53, the one end and the joint portion 51 lateral wall fixed connection of chucking shell fragment 53, the other end extends the setting to the direction of keeping away from 5 axes of pivot gradually.

Through adopting above-mentioned technical scheme, make the joint portion 51 of pivot 5 can be applicable to the charging tray 4 of different specifications, guarantee pivot 5 and charging tray 4 and remain the chucking state throughout, make charging tray 4 during operation difficult more take place to rock, more be favorable to improving the stability of charging tray 4 during operation. Specifically, the clamping spring piece 53 with the structure has elasticity and toughness, is opened in a free state, can be contracted inwards under the extrusion of the gravity action of the material tray 4 after the material tray 4 is installed, and can keep contact with the material tray 4 and have reaction elasticity, so that the material tray 4 can be compatible with the central hole 6 in a certain range. When the tray 4 is taken out, the blades are restored as before. The problem that the middle hole diameter of the middle part of a part of the material disc 4 is not uniform in size and cannot be assembled with the outer diameter of the rotating shaft 5 is solved, and the problem of radial movement due to the gap between the middle hole of the material disc 4 and the rotating shaft 5 during assembly can be solved.

Further, the surface of the rotating portion 52 is smooth.

Through adopting above-mentioned technical scheme, be favorable to reducing the frictional resistance between base 1 and the rotating part 52, and then reduce and send a resistance, make this work or material rest can support heavier consumptive material, further reduce the load of extruding a motor, reduce the moment of torsion requirement to extruding a motor, reduction in production cost.

Further, a driving member (not shown in the figure) for driving the rotating shaft 5 to rotate is arranged on one side of the base 1 away from the tray 2.

Through adopting above-mentioned technical scheme, the driving piece can drive pivot 5 and tray 2 and rotate, provides the feed function, prints simultaneously and accomplishes the back, and driving piece drive pivot 5 and tray 2 gyration, rewind consumptive material silk, the setting of driving piece can overcome bigger rotational friction resistance and inertia, supports bigger weight consumptive material, and the silk is wound in the gyration simultaneously, need not manual rewind material silk, and is more convenient. Specifically, the driving part is a motor, and the motor is fixed with the rotating shaft 5 through a coupler.

Further, as shown in fig. 1, 2 and 5, the rack device further includes an outer cover 7 with an opening on one side, the opening of the outer cover 7 is in clamping fit with the base 1, the tray 2 and the tray 4 are located in the outer cover 7, and a discharge hole 9 (not marked in the figures) for the consumable material wire to pass through is formed in a side wall of the outer cover 7.

Through adopting above-mentioned technical scheme, the setting of dustcoat 7 can prevent that the consumptive material from weing and by impurity pollution such as dust, is favorable to protecting the consumptive material.

Specifically, as shown in fig. 3, a limiting ring 71 is disposed on an outer peripheral edge of the base 1 on a side away from the tray 2, the limiting ring 71 is protruded in a direction away from a center of the base 1, and an opening end of the cover 7 abuts on a surface of the limiting ring 71.

Through adopting above-mentioned technical scheme, can prevent because dustcoat 7 is to the direction radial movement who is close to base 1 and influence the condition that charging tray 4 can normally rotate and take place, dustcoat 7 simple to operate is swift, and spacing ring 71's setting makes dustcoat 7 and base 1 form closed result, can effectively restrain the consumptive material problem that deteriorates that wets.

Further, the outer cover 7 is a wine red translucent PC outer cover 7.

Through adopting above-mentioned technical scheme, make dustcoat 7 can allow red high wavelength light to permeate through, when keeping observing inside consumptive material running state, can effectively completely cut off the shining of low wavelength blue purple light, restrain the consumptive material ageing and deteriorate.

Further, as shown in fig. 1, the interval between the inner wall of the outer cover 7 and the edge of the material tray 4 is L, in this embodiment, L is equal to 2mm, so that the problem that the consumable wire cannot be fed due to the fact that the consumable wire is scattered or falls into the outer side of the material tray 4 to cause the consumable wire to be stuck or the consumable wire is wound and knotted.

Further, the discharge hole 9 is embedded with a cleaning block 8 for cleaning the surface of the consumable material wire, and the cleaning block 8 is provided with a through hole 81 for the material wire to pass through.

Through adopting above-mentioned technical scheme, during the use, the perforation 81 of consumptive material silk process cleaning block 8 under the effect of feeding traction force, impurity such as dust greasy dirt on consumptive material silk surface can effectively be cleaned to cleaning block 8, solves because of impurity or greasy dirt get into the nozzle and melt the intracavity and cause the problem of nozzle end cap or printing defect. Specifically, the cleaning block 8 is a revolving body sponge block with an h-shaped section.

Further, the bottom of base 1 is provided with a plurality of callus on the sole 82, callus on the sole 82 passes through the screw mounting in the bottom of base 1, simple to operate, and is firm reliable, callus on the sole 82 adopts the rubber material, can provide firm support and cushioning effect for the work or material rest device.

The utility model discloses a work or material rest device has following beneficial effect:

1. four universal wheels of 2 lower parts evenly distributed of tray pass through bolted connection, and the universal wheel slides with the bottom, and the atress is supported and is distributed balancedly, and the stationarity is better, has reduced the frictional force of charging tray 4 rotation in-process simultaneously, has reduced the resistance that send a, can support heavier consumptive material (consumptive material weight is less than or equal to 10 kg).

2. The inner wall surface of the central hole 6 of the base 1 and the rotating shaft 5 slide relatively, the contact surface is a smooth surface, and the inner wall surface of the central hole 6 of the base 1 is additionally provided with a rectangular notch characteristic, so that the assembly limiting function (without radial movement) of the base 1 and the rotating shaft 5 is kept, the sliding contact surface between the base 1 and the rotating shaft 5 is reduced, the friction force required to be overcome when the material tray 4 rotates is reduced, and the resistance of wire feeding is reduced.

3. This work or material rest device work or material rest and 3D printer separation have avoided the influence of vibrations inertia in the motion of heavier work or material rest to printing the precision.

4. The limit ring 71 is additionally arranged at the edge of the base 1, the limit ring and the outer cover 7 can form a closed structure through mutual matching, the installation is convenient, and meanwhile, the closed structure can effectively inhibit the consumable from being affected with damp and deteriorated. In addition, the distance between the edge of the charging tray 4 and the inner wall of the transparent outer cover 7 is reasonably designed, the distance is 2mm in the embodiment, and the problem that the consumable wires cannot be fed due to scattering or falling into the outer side of the charging tray 4 and then can be blocked or wound and knotted by the consumable wires can be avoided.

5. This example dustcoat 7 adopts wine red translucent dustcoat 7, can allow red high wavelength light to permeate through, when keeping observing inside consumptive material operation status, can effectively isolated the shining of low wavelength blue purple light, inhibits the consumptive material ageing and deterioration.

6. The embedded cleaning block 8 of dustcoat 7 wire outlet, central through-hole allow the consumptive material silk to pass through, can clear up impurity such as dust greasy dirt of consumptive material surface adhesion when the consumptive material passes through, solve because of impurity or greasy dirt get into the nozzle and melt the intracavity and cause the problem of nozzle end cap or printing defect.

7. The embedded resistance wire of base 1 bottom terminal surface can provide the heating function, dries by the fire the material to the consumptive material that wets.

8. The rotating shaft 5 comprises a clamping elastic sheet 53 which is opened in a free state, and after the charging tray 4 is loaded, the charging tray can be contracted inwards and kept in contact with the charging tray 4 under the action of gravity and has reaction elasticity, so that the problem of radial movement due to a gap caused by the fact that the diameter of the central hole 6 of the charging tray 4 is not consistent with the outer diameter of the rotating shaft 5 is solved, and meanwhile, the requirement on the processing precision of assembling the central hole 6 is lowered.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a 3D printer work or material rest device which characterized in that includes:

a base;

the tray is arranged on one side of the base, a plurality of rolling pieces are arranged on one side of the tray close to the base, and the rolling pieces roll on the surface of the base;

the tray is fixedly arranged on one side of the tray, which is far away from the base;

the rotating shaft sequentially penetrates through the base, the tray and the material tray, and the rotating shaft is rotatably connected with the base.

2. The 3D printer rack device according to claim 1, wherein the base is provided with a central hole for the rotating shaft to pass through, and an inner wall of the central hole is serrated.

3. The 3D printer rack device according to claim 2, wherein the contact surface of the inner wall of the central hole and the rotating shaft is a smooth surface.

4. The 3D printer stack apparatus of claim 3, wherein the roughness of the inner wall of the central hole is no greater than 0.8 microns.

5. The 3D printer rack device according to claim 1, wherein the rotation shaft comprises a clamping portion matched with the material tray in a clamping mode and a rotating portion connected with the base in a rotating mode.

6. The 3D printer rack device according to claim 5, wherein a clamping spring is arranged on a side wall of the clamping portion, one end of the clamping spring is fixedly connected with the side wall of the clamping portion, and the other end of the clamping spring extends in a direction gradually away from the axis of the rotating shaft.

7. The 3D printer stack apparatus of claim 5, wherein a surface of the rotating portion is smooth.

8. The 3D printer rack device according to claim 1, wherein a driving member for driving the rotation shaft to rotate is disposed on a side of the base away from the tray.

9. The 3D printer material rest device according to claim 1, further comprising an outer cover with an opening on one side, wherein the opening of the outer cover is in clamping fit with the base, the tray and the material tray are located in the outer cover, and a discharge hole for a consumable material wire to pass through is formed in a side wall of the outer cover.

10. The 3D printer rack device according to claim 9, wherein a cleaning block for cleaning the surface of the consumable material wire is embedded in the discharging port, and the cleaning block is provided with a through hole through which the feeding wire passes.

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