阅读说明：本技术 一种3d打印设备的耗材固定装置 (Consumable fixing device of 3D printing equipment ) 是由 李思文 何福蓉 李裴 朱涛 陈平雄 于 2020-07-15 设计创作，主要内容包括：本发明公开了一种3D打印设备的耗材固定装置,包括3D打印设备箱体、三维移动架轴,以及安装在三维移动架轴上的融腔,三维移动架轴上设有与融腔连接的耗材传送组件,耗材传送组件与融腔在三维移动架轴上同步移动,并且耗材传送组件在移动的过程中持续将耗材传送到融腔内；耗材传送组件包括固定在3D打印设备箱体侧板上的耗材安装组件,以及安装在三维移动架轴上的透明箱板,透明箱板的内部设有用于将耗材安装组件上的耗材卷轴持续转动的传动机轮,透明箱板的下端与融腔的上端连接,并且传动机轮持续将耗材卷轴上的耗材穿过透明箱板的下端转移至融腔的内部；本方案设置耗材固定装置,减少耗材的折弯和缠绕,进一步提到产品的打印效率和设备稳定性。(The invention discloses a consumable fixing device of 3D printing equipment, which comprises a 3D printing equipment box body, a three-dimensional moving frame shaft and a melting cavity arranged on the three-dimensional moving frame shaft, wherein a consumable conveying assembly connected with the melting cavity is arranged on the three-dimensional moving frame shaft, the consumable conveying assembly and the melting cavity synchronously move on the three-dimensional moving frame shaft, and the consumable conveying assembly continuously conveys consumables into the melting cavity in the moving process; the consumable conveying assembly comprises a consumable mounting assembly fixed on a side plate of the 3D printing equipment box body and a transparent box plate mounted on a three-dimensional moving frame shaft, a transmission wheel for continuously rotating a consumable reel on the consumable mounting assembly is arranged inside the transparent box plate, the lower end of the transparent box plate is connected with the upper end of the melting cavity, and the transmission wheel continuously transfers consumables on the consumable reel to the inside of the melting cavity after penetrating through the lower end of the transparent box plate; this scheme sets up consumptive material fixing device, reduces bending and the winding of consumptive material, further mentions the printing efficiency and the equipment stability of product.)

1. A consumable fixing device of a 3D printing device comprises a 3D printing device box body (1), a three-dimensional movable frame shaft (2) and a melting cavity (3) installed on the three-dimensional movable frame shaft (2), wherein the melting cavity (3) is used for heating and melting consumables, and the consumable fixing device is characterized in that a consumable conveying assembly (4) connected with the melting cavity (3) is arranged on the three-dimensional movable frame shaft (2), the consumable conveying assembly (4) and the melting cavity (3) synchronously move on the three-dimensional movable frame shaft (2), and the consumable conveying assembly (4) continuously conveys the consumables into the melting cavity (3) in the moving process;

the consumable conveying assembly (4) comprises a transparent box plate (42) installed on the three-dimensional moving frame shaft (2), a transmission wheel (43) is arranged inside the transparent box plate (42), the lower end of the transparent box plate (42) is connected with the upper end of the melting cavity (3), a consumable installing assembly (41) is arranged on the outer surface of a side plate of the 3D printing equipment box body (1), and the transmission wheel (43) continuously transmits consumables of the consumable installing assembly (41) to the inside of the melting cavity (3) through the lower end of the transparent box plate (42);

3D printing apparatus box (1) curb plate surface is in the top of consumptive material installation component (41) is equipped with consumptive material compensation mechanism (8), and the curb plate internal surface of 3D printing apparatus box (1) is equipped with consumptive material support frame (9), consumptive material compensation mechanism (8) are used for compensating consumptive material conveying assembly (4) are in shift distance on three-dimensional removal frame axle (2), consumptive material support frame (9) are used for compensating the consumptive material demand that the altitude variation of consumptive material conveying assembly (4) arouses changes.

2. The consumable fixing device of the 3D printing equipment according to claim 1, wherein: the consumable compensation mechanism (8) comprises a raised plate block (801) arranged on the outer surface of a side plate of the 3D printing equipment box body (1), and a movable compensation rod (802) movably mounted on the raised plate (801), the head end of the movable compensation rod (802) is arranged in the raised plate block (801) through a bearing piece to movably rotate, the tail end of the movable compensation rod (802) is provided with a limiting part (803) for the consumable to pass through, a hole groove (804) is arranged inside the limiting part (803), and the surface of the hole groove (804) close to the movable compensation rod (802) is provided with a groove (805), a plurality of connecting rods (806) which are uniformly distributed are arranged between two parallel surfaces of the groove (805), the connecting rod (806) is movably provided with a whistle-shaped piece (807), and the friction coefficients of the two surfaces of the whistle-shaped piece (807) are different.

3. The consumable fixing device of the 3D printing equipment according to claim 2, wherein: whistle shape piece (807) is including the cover establish lantern ring (8071) on connecting rod (806), and install triangular prism piece (8072) on lantern ring (8071), one of them surface of triangular prism piece (8072) is smooth, just the remaining surface of triangular prism piece (8072) is equipped with friction line (8073), consumptive material conveying component (4) with when the distance between consumptive material installation component (41) increases, the smooth surface of triangular prism piece (8072) is just right consumable in hole groove (804), just activity compensation pole (802) are rotatory to the horizontal component and are reduced in order to compensate the consumptive material demand, when consumptive material conveying component (4) with distance between consumptive material installation component (41) reduces, activity compensation pole (802) are rotatory to the horizontal component increase in order to reduce the consumptive material surplus, friction line (8073) of triangular prism piece (8072) are fixed consumptive material in hole groove (804) are in order to with activity compensation pole (802) with the consumptive material between transmission wheel (43) between the wheel And putting the redundant consumables into use.

4. The consumable fixing device of the 3D printing equipment according to claim 2, wherein: the rod body of the movable compensation rod (802) is provided with a plurality of uniformly distributed hook points (808), the hook points (808) are provided with gravity blocks (809), and the gravity blocks (809) regulate and control the consumable compensation strength of the movable compensation rod (802) through the position change on the hook points (808).

5. The consumable fixing device of the 3D printing equipment according to claim 1, wherein: the consumable supporting frame (9) comprises a rotating plate (901) arranged on the inner surface of a side plate of the 3D printing equipment box body (1) and two vertical containing cavities (902) arranged on the rotating plate (901) in parallel, an arch frame (903) is arranged between the two vertical containing cavities (902), an elastic component (904) used for driving the arch frame (903) to move up and down is arranged inside each vertical containing cavity (902), a through hole (905) used for penetrating through the consumable is formed in the center of each arch frame (903), and the rotating plate (901) has a moving range of-60 degrees with the central axis of the side plate of the 3D printing equipment box body (1) as the center.

6. The consumable fixing device of the 3D printing equipment according to claim 1, wherein: the outside linear extension of curb plate of 3D printing apparatus box (1) has transparent frame (5), the perpendicular limit of transparent frame (5) articulates there is open-close board (6), install driving motor (7) on the curb plate of 3D printing apparatus box (1), the output shaft of driving motor (7) has first bracing piece (10), the cover is equipped with spool consumptive material (11) on first bracing piece (10), it sinks opening (12) in being equipped with on open-close board (6), it is equipped with movable rotatory second bracing piece (13) in opening (12) to sink.

7. The consumable fixing device of the 3D printing equipment according to claim 1, wherein: transmission wheel (43) are including installing initiative running roller (431) and passive running roller (432) on transparent boxboard (42) inner wall, initiative running roller (431) with be equipped with consumptive material passageway (433) between passive running roller (432), initiative running roller (431) through short extension board (434) movable mounting transparent boxboard (42) inner wall, just passive running roller (432) through long extension board (435) fixed mounting transparent boxboard (42) inner wall, the face of short extension board (434) is equipped with and is used for the drive driving motor (436) that initiative running roller (431) is rotatory.

8. The consumable fixing device of the 3D printing equipment according to claim 1, wherein: the three-dimensional moving frame shaft (2) comprises an X moving shaft (21), a Y moving shaft (22) and a Z moving shaft (23), the X moving shaft (21) is installed on two parallel side faces of the 3D printing equipment box body (1), the Z moving shaft (23) is installed on the X moving shaft (21) and moves back and forth along with the X moving shaft (21), and the Y moving shaft (22) is installed between the two Z moving shafts (23) and moves up and down along with the Z moving shaft (23) synchronously.

9. The consumable fixing device of the 3D printing equipment according to claim 2, wherein: y removes axle (22) including two connections and is in Z removes between axle (23) and relative distribution's tiling track (221) to and respectively movable mounting is two rotatory screw rod (222) in tiling track (221), the tip of tiling track (221) is equipped with and is used for the drive rotatory servo motor (223) of rotatory screw rod (222) pivoted.

10. The consumable fixing device of the 3D printing equipment according to claim 3, wherein: each rotating screw (222) is provided with a threaded base (224) which linearly moves along the rotating screw (222), the melting cavity (3) is fixedly installed on the threaded base (224), a limiting sliding plate (225) which is sleeved on the tiled track (221) is fixedly arranged on the threaded base (224), and the bottom of the transparent box plate (42) is fixedly installed on the limiting sliding plate (225) so as to enable the transparent box plate (42) and the melting cavity (3) to synchronously move.

Technical Field

The invention relates to the technical field of 3D printing, in particular to a consumable fixing device of 3D printing equipment.

Background

The 3D printing technique, which is one of the rapid prototyping techniques, is also called additive manufacturing, and is a technique of constructing an object by using an adhesive material such as powdered metal or plastic and the like and by printing layer by layer on the basis of a digital model file. The printer is provided with linear consumables, and the consumables are stacked layer by layer under the control of a computer, so that the three-dimensional printing of the product is finally realized.

However, in the prior art, when the 3D printing apparatus is operated, the consumables are broken and wound around the X/Y axis of the lead screw due to the unreasonable consumable fixing device, and the motor may be stopped when the servo motor is operated. And present consumptive material fixed position has certain difference in height apart from the feed inlet, and at 3D printer during operation, produces certain distortion power, causes the feeding motor operation burden, leads to equipment to take place to damage under the extreme condition.

Disclosure of Invention

The invention aims to provide a consumable fixing device of 3D printing equipment, which solves the technical problem that multiple layers of materials are difficult to separate one by one in the prior art.

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

a consumable fixing device of 3D printing equipment comprises a 3D printing equipment box body, a three-dimensional moving frame shaft and a melting cavity mounted on the three-dimensional moving frame shaft, wherein the melting cavity is used for heating and melting consumables;

the consumable conveying assembly comprises a transparent box plate installed on the three-dimensional moving frame shaft, a transmission wheel is arranged inside the transparent box plate, the lower end of the transparent box plate is connected with the upper end of the melting cavity, a consumable installing assembly is arranged on the outer surface of a side plate of a box body of the 3D printing equipment, and the transmission wheel continuously transmits consumables of the consumable installing assembly to the inside of the melting cavity through the lower end of the transparent box plate;

3D printing apparatus box curb plate surface is in the top of consumptive material installation component is equipped with consumptive material compensation mechanism, and the curb plate internal surface of 3D printing apparatus box is equipped with the consumptive material support frame, consumptive material compensation mechanism is used for compensating consumptive material transport assembly is in the epaxial aversion distance of three-dimensional removal frame, the consumptive material support frame is used for compensating the consumptive material demand change that the altitude variation of consumptive material transport assembly arouses.

As a preferable scheme of the invention, the consumable compensation mechanism comprises a raised plate block mounted on the outer surface of a side plate of the 3D printing device box body, and a movable compensation rod movably mounted on the raised plate block, the head end of the movable compensation rod is movably mounted in the raised plate block through a bearing piece, the tail end of the movable compensation rod is provided with a limiting part for the consumable to pass through, a hole groove is arranged inside the limiting part, a groove is arranged on the surface of the hole groove close to the movable compensation rod, a plurality of uniformly distributed connecting rods are arranged between two parallel surfaces of the groove, a whistle-shaped piece is movably arranged on the connecting rod, and the friction coefficients of the two surfaces of the whistle-shaped piece are different.

As a preferable scheme of the present invention, the whistle-shaped piece includes a collar sleeved on the connecting rod, and a triangular prism installed on the collar, one of the surfaces of the triangular prism is smooth, and the remaining surface of the triangular prism is provided with friction lines, when the distance between the consumable material conveying assembly and the consumable material installation assembly is increased, the smooth surface of the triangular prism faces the consumable material in the hole groove, and the movable compensation rod rotates to a horizontal component to reduce the consumable material requirement, when the distance between the consumable material conveying assembly and the consumable material installation assembly is reduced, the movable compensation rod rotates to a horizontal component to increase the consumable material allowance, and the friction lines of the triangular prism fix the consumable material in the hole groove to put the redundant consumable material between the movable compensation rod and the transmission wheel into use.

As a preferable scheme of the invention, a plurality of uniformly distributed hook points are arranged on the rod body of the movable compensation rod, gravity blocks are arranged on the hook points, and the gravity blocks regulate and control the consumable compensation strength of the movable compensation rod through the position change on the hook points.

As a preferred scheme of the invention, the consumable support frame comprises a rotating plate arranged on the inner surface of a side plate of the 3D printing device box body, and two vertical cavities arranged on the rotating plate in parallel, an arch frame is arranged between the two vertical cavities, an elastic component for driving the arch frame to move up and down is arranged inside the vertical cavity, a perforation for penetrating the consumable is arranged at the center of the arch frame, the central axis of the side plate of the 3D printing device box body is taken as a central point, and the moving range of the rotating plate is-60 to-60 degrees.

As a preferable scheme of the invention, a transparent frame linearly extends outwards from a side plate of the 3D printing device box, an opening plate is hinged to a vertical edge of the transparent frame, a driving motor is mounted on the side plate of the 3D printing device box, an output shaft of the driving motor is connected with a first support rod, a consumable reel is sleeved on the first support rod, an inner sinking opening is formed in the opening plate, and a second support rod which movably rotates is arranged in the inner sinking opening.

As a preferred scheme of the invention, the transmission wheel comprises a driving roller and a driven roller which are arranged on the inner wall of the transparent box plate, a consumable material channel is arranged between the driving roller and the driven roller, the driving roller is movably arranged on the inner wall of the transparent box plate through a short support plate, the driven roller is fixedly arranged on the inner wall of the transparent box plate through a long support plate, and the surface of the short support plate is provided with a driving motor for driving the driving roller to rotate.

As a preferable aspect of the present invention, the three-dimensional moving frame axis includes an X moving axis, a Y moving axis, and a Z moving axis, the X moving axis is installed at two parallel side surfaces of the 3D printing apparatus box, the Z moving axis is installed on the X moving axis and moves back and forth synchronously with the X moving axis, and the Y moving axis is installed between the two Z moving axes and moves up and down synchronously with the Z moving axis.

As a preferable scheme of the present invention, the Y moving axis includes two tiled tracks connected between the Z moving axis and distributed oppositely, and rotating screws movably mounted in the two tiled tracks, respectively, and a servo motor for driving the rotating screws to rotate is disposed at an end of the tiled tracks.

As a preferable scheme of the present invention, each of the rotating screws is provided with a threaded base which linearly moves along the rotating screw, the melting chamber is fixedly installed on the threaded base, the threaded base is fixedly provided with a limiting sliding plate which is sleeved on the tiled track, and the bottom of the transparent box plate is fixedly installed on the limiting sliding plate so as to move the transparent box plate and the melting chamber synchronously.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the consumable fixing device is arranged at the upper end of the 3D printer, so that the bending and winding of the consumable are reduced, the printing efficiency and the equipment stability of the product are further improved, the phenomenon that the consumable is broken or wound on the lead screw in the printing process in the prior art is solved, and the twisting force caused to the feeding motor is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

FIG. 1 is a schematic view of an overall structure of a consumable fixing device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an overall structure of a consumable compensation mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a limiting portion according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a whistle piece provided by an embodiment of the invention;

FIG. 5 is a schematic structural diagram of a consumable support stand according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a Y-axis of motion according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a transmission wheel provided in an embodiment of the present invention.

The reference numerals in the drawings denote the following, respectively:

1-3D printing equipment box body; 2-three-dimensional moving frame shaft; 3-melting the cavity; 4-consumable transport assembly; 5-a transparent frame; 6-a plywood; 7-driving a motor; 8-consumable compensation mechanism; 9-consumable support frame; 10-a first support bar; 11-consumable reel; 12-an inner sunken opening; 13-a second support bar;

21-X axis of motion; 22-Y axis of motion; 23-Z axis of motion;

221-tiled tracks; 222-rotating the screw; 223-a servo motor; 224-a threaded base; 225-limit slide plate;

41-consumable mounting component; 42-transparent boxboard; 43-a transmission wheel; 44-consumable reel;

431-a driving roller; 432-a passive roller; 433-consumable channel; 434-short support plate; 435-long support plate; 436-drive motor;

801-raised plate; 802-an active compensation rod; 803-a limiting part; 804-hole slot; 805-grooves; 806-connecting rod; 807-whistle shaped pieces; 808-hooking points; 809-gravity block;

8071-a collar; 8072-triangular prism; 8073 friction reducing;

901-a rotating plate; 902-vertical volume; 903-arch frame; 904-elastic component; 905-perforation.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the invention provides a consumable fixing device of a 3D printing apparatus, a nozzle of the 3D printing apparatus continuously changes on a three-dimensional moving shaft, when the nozzle moves down or moves back and forth, the supply amount of the consumable needs to automatically compensate the height of the nozzle moving down, otherwise, the consumable will be broken, when the nozzle moves up and returns to an initial position, the redundant amount of the consumable needs to be automatically stored, otherwise, the consumable will be wound on the three-dimensional moving shaft.

In order to solve the problem, this embodiment causes the redundant problem of consumptive material through compensation consumptive material demand increase and consumptive material demand reduction to bending and the winding of effectual reduction consumptive material further mention the printing efficiency and the equipment stability of product, solve the phenomenon of printing in-process consumptive material rupture or winding lead screw that exists among the prior art, reduce the distortion power influence to the feeding motor.

The consumable fixing device specifically includes 3D printing apparatus box 1, three-dimensional removal frame axle 2, and install and melt the chamber 3 on three-dimensional removal frame axle 2, it is used for melting the consumable heating to melt the chamber 3, be equipped with on three-dimensional removal frame axle 2 and melt the consumptive material conveying assembly 4 that the chamber 3 is connected, consumptive material conveying assembly 4 with melt chamber 3 synchronous motion on three-dimensional removal frame axle 2, and consumptive material conveying assembly 4 lasts to convey the consumptive material in melting chamber 3 at the in-process that removes.

Consumable conveying component 4 is equipped with drive wheel 43 including installing transparent boxboard 42 on three-dimensional removal frame axle 2 in transparent boxboard 42's inside, and transparent boxboard 42's lower extreme is connected with the upper end of melting chamber 3, and 1 curb plate surface of 3D printing apparatus box is equipped with consumable installation component 41 to drive wheel 43 continuously passes the lower extreme of transparent boxboard 42 with consumable installation component 41 and transmits to the inside of melting chamber 3.

Specifically, this embodiment sets up the consumptive material spool on the consumptive material installation component 41 of 1 curb plate surface of 3D printing apparatus box, and consumptive material installation component 41 provides rotatory release power supply to the consumptive material spool, and transmission wheel 43 transmits the consumptive material of release to the inside of melting chamber 3, and the consumptive material release amount of consumptive material installation component 41 is the same with the consumptive material transmission amount of transmission wheel 43, confirms the stable output of consumptive material.

As shown in fig. 2 to 4, the outer surface of the side plate of the 3D printing apparatus box 1 is provided with a consumable compensation mechanism 8 above the consumable mounting assembly 41, the inner surface of the side plate of the 3D printing apparatus box 1 is provided with a consumable support frame 9, the consumable compensation mechanism 8 is used for compensating the displacement distance of the consumable transmission assembly 4 on the three-dimensional movable frame shaft 2, and the consumable support frame 9 is used for compensating the consumable demand change caused by the height change of the consumable transmission assembly 4.

Generally speaking, the spatial structure that 3D printed has the component of horizontal direction and vertical direction, therefore 3D prints shower nozzle from the bottom up's removal in-process, and the redundant volume of consumptive material in the consumptive material transmission direction is more and more, and this embodiment is through consumptive material compensation mechanism 8 and the work jointly of consumptive material support frame 9, comes the redundant volume of the reasonable consumptive material of holding and reasonable compensation consumptive material.

Consumable compensation mechanism 8 is including installing the protruding plate 801 at 3D printing apparatus box 1 curb plate surface to and movable mounting is at the activity compensation pole 802 on protruding plate 801, the head end of activity compensation pole 802 passes through the bearing spare and installs the activity rotation in protruding plate 801, the end of activity compensation pole 802 is equipped with the spacing portion 803 that supplies the consumable to pass through, the inside of spacing portion 803 is equipped with hole groove 804, and the surface that hole groove 804 is close to activity compensation pole 802 is equipped with recess 805, be equipped with a plurality of evenly distributed's connecting rod 806 between two parallel surfaces of recess 805, the activity is equipped with whistle shape piece 807 on the connecting rod 806, the coefficient of friction on two surfaces of whistle shape piece 807 is different.

Activity compensation pole 802 is rotatory around protruding plate 801 through the bearing spare, when activity compensation pole 802 rotates to the level, then the consumptive material increases at the length of the support position of activity compensation pole 802, thereby can carry out reasonable the holding with the redundant consumptive material that consumptive material transport assembly 4 connects, when activity compensation pole 802 rotates towards vertical direction, then the length of consumptive material at the support position of activity compensation pole 802 reduces, the consumptive material that comes out more compensates the required consumptive material volume of consumptive material transport assembly 4.

Whistle shape piece 807 is including establishing the lantern ring 8071 on connecting rod 806, and install triangular prism 8072 on lantern ring 8071, one of them surface of triangular prism 8072 is smooth, and triangular prism 8072's remaining surface is equipped with friction line 8073, when the distance between consumptive material transfer assembly 4 and the consumptive material installation component 41 increases, triangular prism 8072's smooth surface is just to the consumptive material in the hole groove 804, and activity compensation pole 802 is rotatory to the horizontal component reduction in order to compensate the consumptive material demand, when the distance between consumptive material transfer assembly 4 and the consumptive material installation component 41 reduces, triangular prism 8072's friction line 8073 is just to the consumptive material in the hole groove 804, and activity compensation pole 802 is rotatory to the horizontal component increase in order to reduce the consumptive material surplus.

Whistle shape piece 807 is passed through lantern ring 8071 and is rotated around connecting rod 806, and under the general condition, in the drive in-process of transmission wheel 43, the smooth surface of triangular prism 8072 is just to the consumptive material in the hole groove 804, realize the consumptive material normal transportation on the consumptive material spool this moment, consequently when transmission wheel 43 and consumptive material installation component 41 rotate in step, move on consumptive material installation component 41 or can arouse the redundant condition of consumptive material when shifting toward central point, redundant consumptive material reduces the pulling force of activity compensation pole 802, activity compensation pole 802 is rotatory to the horizontal component increase in order to reduce the consumptive material surplus simultaneously.

When the distance between consumable conveying component 4 and consumable installation component 41 reduces, triangular prism 8072 rotates under the drive of the consumable and rotates around connecting rod 806, until triangular prism 8072's friction line 8073 just to the consumable in hole groove 804, friction line 8073 is very big to the frictional force of consumable, and activity compensation pole 802 is constantly sent into to melt chamber 3 to the consumable between transmission wheel 43, and the consumable between activity compensation pole 802 and the consumable spool is piled up by a small amount.

Thus, the friction lines 8073 of the triangular prism 8072 of the embodiment temporarily prevent the consumable supply of the consumable mounting assembly 41 and the rotary motion of the movable compensation rod 802, so that the length of the consumable connected with the transmission wheel 43 is reduced, the condition that redundant consumable is wound on the three-dimensional movable frame shaft 2 is effectively avoided, and the stability of 3D printing work is improved.

When redundant consumptive material is put into use, transmission wheel 43 increases the pulling force of consumptive material, therefore consumptive material pulling triangular prism 8072 rotates to the smooth surface of triangular prism 8072 just to the consumptive material in hole groove 804 to the consumptive material can continue the transmission in hole groove 804.

When 3D printed that the shower nozzle moves down or the back-and-forth movement is big enough to the demand of consumptive material, the pulling force increase that consumptive material itself bore drives activity compensation pole 802 and rotates to the horizontal component and reduce, and the consumption redundancy that activity compensation pole 802 rotation arouses compensates the demand that 3D printed the shower nozzle and remove.

The rod body of the movable compensation rod 802 is provided with a plurality of uniformly distributed hook points 808, the hook points 808 are provided with gravity blocks 809, and the gravity blocks 809 regulate and control the consumable compensation strength of the movable compensation rod 802 through the position change on the hook points 808.

In order to increase the timeliness when the movable compensation rod 802 rotates to increase the horizontal component, the embodiment is realized only by the self weight of the movable compensation rod 802, and meanwhile, the gravity block 809 can be added, so that the fixed position of the gravity block 809 at the hook point 808 is changed, and the pulling effect of the gravity block 809 on the movable compensation rod 802 is changed.

As shown in fig. 5, the consumable supporting frame 9 includes a rotating plate 901 disposed on the inner surface of the side plate of the 3D printing apparatus box 1, and two vertical cavities 902 disposed in parallel on the rotating plate 901, an arch 903 is disposed between the two vertical cavities 902, an elastic component 904 for driving the arch 903 to move up and down is disposed inside the vertical cavity 902, a perforation 905 for passing through the consumable is disposed at the center of the arch 903, the central axis of the side plate of the 3D printing apparatus box 1 is used as the central point, and the moving range of the rotating plate 901 is-60 ° to-60 °.

Work of consumptive material support frame 9 cooperation activity compensation pole 802, when 3D prints the shower nozzle and moves down, the pulling force at arch frame 903 is applyed to the consumptive material, pulling arch frame 903 moves down in vertical appearance chamber 902, elastic component 904 warp and produces the bounce-back force, when 3D prints the shower nozzle and shifts up, elastic component 904 promotes arch frame 903 and shifts up, upwards stimulates the consumptive material, in order to avoid unnecessary consumptive material winding at three-dimensional removal frame axle 2, otherwise, can realize the compensation to the consumptive material.

As shown in fig. 5 to 7, the outside linear extension of curb plate of 3D printing apparatus box 1 has transparent frame 5, transparent frame 5's vertical limit articulates there is open-close board 6, install driving motor 7 on 3D printing apparatus box 1's the curb plate, driving motor 7's output shaft has first bracing piece 10, the cover is equipped with consumptive material spool 11 on first bracing piece 10, open-close board 6 is last to be equipped with interior heavy opening 12, be equipped with movable rotatory second bracing piece 13 in the interior heavy opening 12.

The transmission wheel 43 comprises an active roller 431 and a passive roller 432 which are arranged on the inner wall of the transparent box plate 42, a consumable material channel 433 is arranged between the active roller 431 and the passive roller 432, the active roller 431 is movably arranged on the inner wall of the transparent box plate 42 through a short supporting plate 434, the passive roller 432 is fixedly arranged on the inner wall of the transparent box plate 42 through a long supporting plate 435, and a driving motor 436 for driving the active roller 431 to rotate is arranged on the surface of the short supporting plate 434.

The three-dimensional moving frame shaft 2 comprises an X moving shaft 21, a Y moving shaft 22 and a Z moving shaft 23, wherein the X moving shaft 21 is installed on two parallel side surfaces of the 3D printing device box body 1, the Z moving shaft 23 is installed on the X moving shaft 21 and moves back and forth synchronously with the X moving shaft 21, and the Y moving shaft 22 is installed between the two Z moving shafts 23 and moves up and down synchronously with the Z moving shaft 23.

The Y moving axis 22 includes two parallel tracks 221 connected between the Z moving axes 23 and distributed oppositely, and rotary screws 222 movably installed in the two parallel tracks 221, and a servo motor 223 for driving the rotary screws 222 to rotate is disposed at an end of the parallel tracks 221.

Each rotating screw 222 is provided with a threaded base 224 which linearly moves along the rotating screw 222, the melting chamber 3 is fixedly arranged on the threaded base 224, the threaded base 224 is fixedly provided with a limiting sliding plate 225 which is sleeved on the flat laying rail 221, and the bottom of the transparent box plate 42 is fixedly arranged on the limiting sliding plate 225 so as to synchronously move the transparent box plate 42 and the melting chamber 3.

According to the invention, the consumable fixing device is arranged at the upper end of the 3D printer, so that the bending and winding of the consumable are reduced, the printing efficiency and the equipment stability of the product are further improved, the phenomenon that the consumable is broken or wound on the lead screw in the printing process in the prior art is solved, and the twisting force caused to the feeding motor is reduced.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.