CN208020736U - A kind of 3D printing head - Google Patents

Abstract

A kind of 3D printing head, including pedestal, stepper motor, biography line wheel, pressure head, trunnion fixed seat, Filamentous consumptive material, consumptive material wheel, spring, the first fan, trunnion, the heating print module being connected on feed mechanism, the pressure head direction passes in the one side of line wheel integrally formed with upper conducting wire boss, in the trunnion fixed seat upper conducting wire boss and lower wire boss are passed through integrally formed with lower wire boss, the filiform consumptive material towards on the surface of upper conducting wire boss；Filamentous consumptive material can be made fast and accurately to pass through pressure head and trunnion fixed block, replaced convenient for consumptive material, efficiency is improved.

Description

A kind of 3D printing head

Technical field

The utility model is related to 3D printer fields, more specifically, it relates to a kind of 3D printing head.

Background technology

3D printer is also known as three-dimensional printer (3DP), is a kind of cumulative manufacturing technology, i.e. a kind of machine of rapid prototyping technology Device, it is based on a digital model file, and with adhesive materials such as special wax material, powdery metal or plastics, passes through Jointing material from level to level is printed to manufacture three-dimensional object.Three-dimensional printer is used to manufacture product at this stage.Successively print Mode construct the technology of object.The principle of 3D printer is that data and raw material are put into 3D printer, and machine can be according to Program is from level to level created product.The operation principle and conventional printer of 3D printer are essentially the same, be all by control assembly, The frameworks such as mechanical component, print head, consumptive material and medium composition.

Existing notification number is that the utility model patent of CN205997355U discloses a kind of 3D printing head, including print head base Seat, the stepper motor being set in printing head base, and be set on printing head base same side consumptive material wheel, trunnion and Heating module；Motor shaft is arranged on the output shaft of the stepper motor, the central shaft of motor shaft is flat with the central shaft of consumptive material wheel It goes and in same level, the gap between motor shaft and consumptive material wheel is less than the diameter of Filamentous consumptive material；The heating module It is set to the underface of motor shaft and consumptive material wheel, the gap between one end face motor shaft and consumptive material wheel of the trunnion, trunnion The other end extend in heating module, be provided with nozzle on the heating module.Its is reasonable in design, identical size Print head can reach the print volume of bigger, perfect heat-dissipating, and circuit is built in print head, reduces security risk, with The mode that short range squeezes out is fed, and plug, pumpback be accurate and control accuracy higher.

But the 3D printing head is during wearing Filamentous consumptive material, is spaced excessive between briquetting and trunnion fixed seat, leads to filiform Consumptive material is difficult that threading hole, threading will be attempted succeed many times up and down for alignment, and threading is difficult.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of 3D printing head, realize Filamentous The fast and accurately threading of consumptive material improves production efficiency.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of 3D printing head, including The pedestal that is connected on feed mechanism, the stepper motor being fixedly connected on pedestal, the biography on stepper motor output shaft Line wheel, be hinged on pedestal and positioned at pass line wheel side pressure head, be fixedly mounted on the pedestal and positioned at pass line wheel it is another The trunnion fixed seat of side, is rotatably connected on the one of pressure head at the Filamentous consumptive material through pressure head and trunnion fixed seat and for printing It holds and compresses the consumptive material wheel of the Filamentous consumptive material close to the biography line wheel by pressure head rotates and with biography line wheel cooperation, is fixed on The other end of pressure head and spring between the pressure head and the trunnion fixed seat are fixedly connected on pressure head and trunnion is fixed The first fan, the trunnion being fixedly connected in trunnion fixed seat on the surface of seat, the heating impression block that is fixedly connected with trunnion Block；The pressure head towards in the one side for passing line wheel integrally formed with upper conducting wire boss, towards upper conducting wire in the trunnion fixed seat On the surface of boss upper conducting wire boss and lower wire boss are passed through integrally formed with lower wire boss, the filiform consumptive material.

By using above-mentioned technical proposal, Filamentous consumptive material is located at after pressure head to be passed line wheel and consumptive material wheel, due to bullet Spring withstands on one end of pressure head, makes the consumptive material wheel of the other end close to line wheel is passed, to compress Filamentous consumptive material, Filamentous consumptive material is worn successively again Trunnion fixed seat, trunnion, heating print module are crossed, is printed after silk material dissolves by heating to realize, stepper motor rotation, which drives, to be passed Line wheel rotation pulls Filamentous consumptive material to realize the continuous supply of material, in print procedure by the first fan to heating print module into Row fan heat avoids heating print module overheat, the lower wire on upper conducting wire boss and trunnion fixed seat being arranged on pressure head convex Platform is used cooperatively, and decrement reduces the gap between pressure head and trunnion fixed seat, to avoiding Filamentous consumptive material from being bent in gap It is difficult across trunnion fixed seat.

The utility model is further arranged to：The lower wire boss is arranged to wedge block, and wedge block top is arranged to put down Face.

By using above-mentioned technical proposal, wedge block can enable wedge block make lower wire boss conducting wire boss side upward as possible To extension, gap between the two is made to become smaller, while empty avoiding passes line wheel and consumptive material wheel, is arranged to plane on top, is conducive to filiform The perforative through-hole of consumptive material processes chamfering, is conducive to Filamentous consumptive material rapid-aligning.

In conclusion the utility model has the advantages that：

When wearing Filamentous consumptive material to heating print module, pressure head and trunnion fixed block can be fast and accurately passed through, is convenient for Consumptive material is replaced, and efficiency is improved.

Description of the drawings

Fig. 1 is the structural schematic diagram of the present embodiment；

Fig. 2 is that the present embodiment removes the structural schematic diagram after fan.

In figure：1, pedestal；2, stepper motor；3, line wheel is passed；4, pressure head；5, consumptive material wheel；6, trunnion fixed seat；7, Filamentous consumption Material；8, spring；9, trunnion；10, print module is heated；11, upper conducting wire boss；12, lower wire boss；13, the first fan；14, Plane.

Specific implementation mode

With reference to the accompanying drawings and examples, the utility model is described in detail.

A kind of 3D printing head includes as shown in Figure 1 and Figure 2 the pedestal 1 being connected on feed mechanism, solid on pedestal 1 Surely it is connected with stepper motor 2, is fixedly connected with by key on the output shaft of stepper motor 2 and passes line wheel 3, passed outside 3 upper edge of line wheel Profile be uniformly distributed it is with teeth, on pedestal 1 and positioned at pass line wheel 3 side be hinged with pressure head 4,4 outer profile of pressure head is L-shaped, hinge Chain is located at bending place, is rotatably connected to consumptive material wheel 5 by bearing in the short end of pressure head 4, consumptive material wheel 5 passes through 4 around hinge of pressure head It rotates close to line wheel 3 is passed, trunnion fixed seat 6 is fixedly connected with by screw on pedestal 1, trunnion fixed seat 6, which is located at, passes line The other side of wheel 3 is located at consumptive material on pressure head 4 and trunnion fixed seat 6 through the Filamentous consumptive material 7 for being useful for printing, Filamentous consumptive material 7 Between wheel 5 and biography line wheel 3, when transmitting consumptive material, consumptive material wheel 5 and the Filamentous consumptive material 7 of the biography cooperation compression of line wheel 3, in the other end of pressure head 4 There is spring 8 by screw inlay card, spring 8 passes through between pressure head 4 and trunnion fixed seat 6 in the lower surface of trunnion fixed seat 6 Be threaded with trunnion 9, with trunnion 9 be fixedly connected with heating print module 10, Filamentous consumptive material 7 run through trunnion fixed seat 6 after according to It is secondary to run through trunnion 9 and heating print module 10.

Positioned at pressure head 4 towards pass line wheel 3 one side on integrally formed with upper conducting wire boss 11, the court in 9 fixed seat 6 of trunnion Run through pressure head 4 and trunnion fixed seat 6 integrally formed with lower wire boss 12, Filamentous consumptive material 7 on the surface of upward conducting wire boss 11 While also extend through conducting wire boss 11 and lower wire boss 12.The is connected on the outer surface of pressure head 4 and trunnion fixed seat 6 One fan 13,13 air outlet of the first fan is towards 2 direction of stepper motor.

Filamentous consumptive material 7 is located at after pressure head 4 to be passed line wheel 3 and consumptive material wheel 5, since spring 8 withstands on the one of pressure head 4 End makes the consumptive material wheel 5 of the other end close to line wheel 3 is passed, and to compress Filamentous consumptive material 7, Filamentous consumptive material 7 sequentially passes through trunnion and fixes again Seat 6, trunnion 9, heating print module 10 print to realize after silk material dissolves by heating, and the rotation of stepper motor 2, which drives, passes line wheel 3 Rotation pulls Filamentous consumptive material 7 to realize the continuous supply of material, by the first fan 13 to heating print module 10 in print procedure Fan heat is carried out, avoids heating print module 10 from overheating, on the upper conducting wire boss 11 and trunnion fixed seat 6 being arranged on pressure head 4 Lower wire boss 12 is used cooperatively, and decrement reduces the gap between pressure head 4 and trunnion fixed seat 6, to avoid Filamentous consumptive material 7 from existing In gap be bent and be difficult across trunnion fixed seat 6.

The lower wire boss 12 is arranged to wedge block, and wedge block top is arranged to plane 14, and wedge block can make lower wire 11 direction of conducting wire boss upward as possible of boss 12 extends, and so that gap between the two is become smaller, while empty avoiding passes line wheel 3 and consumptive material wheel 5, it is arranged to plane 14 on top, chamfering is processed conducive to the perforative through-hole of Filamentous consumptive material 7, it is quickly right is conducive to Filamentous consumptive material 7 Position.

In conclusion when wearing Filamentous consumptive material 7 to heating print module 10, upper conducting wire boss 11 and lower wire boss 12 it Between spacing greatly reduce, can fast and accurately pass through pressure head 4 and trunnion fixed seat 6, be replaced convenient for Filamentous consumptive material 7, be improved Efficiency.

The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the scope of protection of the utility model.It should refer to Go out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (2)

1. a kind of 3D printing head, including the pedestal (1) being connected on feed mechanism, the stepping electricity being fixedly connected on pedestal (1) Machine (2), the biography line wheel (3) being mounted on stepper motor (2) output shaft are hinged on pedestal (1) and positioned at the one of biography line wheel (3) The pressure head (4) of side, runs through the trunnion fixed seat (6) for being fixedly mounted on the pedestal (1) and being located at biography line wheel (3) other side Pressure head (4) is with trunnion fixed seat (6) and is used for the Filamentous consumptive material (7) of printing, is rotatably connected on one end of pressure head (4) and passes through pressure Head (4) rotation and close to the biography line wheel (3) and with pass line wheel (3) coordinate compress the Filamentous consumptive material (7) consumptive material wheel (5), It is fixed on the other end of pressure head (4) and the spring (8) between the pressure head (4) and the trunnion fixed seat (6), fixed company The first fan (13) for being connected on the surface of pressure head (4) and trunnion fixed seat (6) is fixedly connected in trunnion fixed seat (6) Trunnion (9), the heating print module (10) being fixedly connected with trunnion (9), it is characterised in that：Pressure head (4) direction passes line wheel (3) integrally formed with upper conducting wire boss (11) in one side, towards the table of upper conducting wire boss (11) on the trunnion fixed seat (6) On face upper conducting wire boss (11) and lower wire boss are passed through integrally formed with lower wire boss (12), the filiform consumptive material (7) (12)。

2. a kind of 3D printing head according to claim 1, it is characterised in that：Wedgewise is arranged in the lower wire boss (12) Block, wedge block upper end are arranged to plane (14).