阅读说明：本技术 一种双打印头3d打印机运动结构 (A kind of double print head 3D printer motion structures ) 是由 严美霞 肖伟 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种双打印头3D打印机运动结构,包括第一打印头,第二打印头,第一X向驱动机构,第二X向驱动机构,Y向驱动机构,第一X向传动机构,第二X向传动机构,Y向传动机构；所述第一X向驱动机构用于通过所述第一X向传动机构驱动所述第一打印头沿X方向运动；所述第二X向驱动机构用于通过所述第二X向传动机构驱动所述第二打印头沿X方向运动；所述Y向驱动机构用于通过所述Y向传动机构驱动所述第一打印头和第二打印头沿Y方向运动。该双打印头3D打印机运动结构可以减少因X、Y轴运动不协调产生错位导致降低打印精度,适合长时间打印,并且有助于提高打印成功率。(The invention discloses a kind of double print head 3D printer motion structures, including the first print head, the second print head, the first X is to driving mechanism, and the 2nd X is to driving mechanism, Y-direction driving mechanism, and the first X is to transmission mechanism, and the 2nd X is to transmission mechanism, Y-direction transmission mechanism；First X is used to drive first print head to move in X direction to transmission mechanism by the first X to driving mechanism；2nd X is used to drive second print head to move in X direction to transmission mechanism by the 2nd X to driving mechanism；The Y-direction driving mechanism is used to drive first print head and the second print head to move along Y-direction by the Y-direction transmission mechanism.Double print head 3D printer motion structures can be reduced to be caused to reduce printing precision because X, Y-axis move uncoordinated generation dislocation, is suitble to print for a long time, and help to improve printing success rate.)

1. a kind of double print head 3D printer motion structures, it is characterised in that: including the first print head, the second print head, the first X To driving mechanism, the 2nd X is passed to transmission mechanism, the 2nd X to transmission mechanism, Y-direction to driving mechanism, Y-direction driving mechanism, the first X Motivation structure；First X is used to drive first print head along the side X to transmission mechanism by the first X to driving mechanism To movement；2nd X is used to drive second print head along the side X to transmission mechanism by the 2nd X to driving mechanism To movement；The Y-direction driving mechanism is used to drive first print head and the second print head edge by the Y-direction transmission mechanism Y-direction movement.

2. double print head 3D printer motion structures according to claim 1, it is characterised in that: the Y-direction driving mechanism For motor belt actuation, the Y-direction transmission mechanism is belt transmission agency or screw rod transport mechanism.

3. double print head 3D printer motion structures according to claim 2, it is characterised in that: the Y-direction driving mechanism Including third motor, third main transmission synchronizing wheel 302, third conveyer belt, the main synchronizing wheel of third duplex；The third conveyer belt is set Between the third main transmission synchronizing wheel 302 and the main synchronizing wheel of third duplex, the third motor passes through the main biography of the third Dynamic synchronizing wheel 302 and the third conveyer belt transmission connection main synchronizing wheel of third duplex.

4. double print head 3D printer motion structures according to claim 3, it is characterised in that: the Y-direction transmission mechanism X including extending in X direction rotates optical axis to main rotation optical axis and X to pair, the main synchronous belt of Y-direction and Y-direction pair extended along Y-direction Synchronous belt；The main toothed belt transmission of Y-direction connects one end that the X rotates optical axis to main rotation optical axis and X to pair, the Y-direction Secondary toothed belt transmission connects the other end that the X rotates optical axis to main rotation optical axis and X to pair；The main synchronizing wheel of third duplex The X be sequentially connected to main rotation optical axis；

The Y-direction transmission mechanism further includes Y-direction master slider, Y-direction pair sliding block, and is extended in X direction and simultaneously through described the The third of one print head and the second print head connects optical axis；The Y-direction master slider and Y-direction pair sliding block are respectively arranged on the third and connect Connect the both ends of optical axis；The Y-direction master slider and Y-direction pair sliding block respectively correspond the main synchronous belt of the transmission connection Y-direction and Y-direction pair is same Walk band.

5. double print head 3D printer motion structures according to claim 4, it is characterised in that: the first X is to driving Mechanism be motor belt actuation, the first X to transmission mechanism be belt gear or screw rod transport mechanism.

6. double print head 3D printer motion structures according to claim 5, it is characterised in that: the first X is to driving Mechanism includes first motor, the first main transmission synchronizing wheel, the first conveyer belt, the main synchronizing wheel of the first duplex；First conveyer belt Between the first main transmission synchronizing wheel and the main synchronizing wheel of the first duplex, the first motor passes through first main transmission Synchronizing wheel and the first conveyer belt transmission connection main synchronizing wheel of the first duplex.

7. double print head 3D printer motion structures according to claim 6, it is characterised in that: the first X is to transmission Mechanism includes the main rotation optical axis of the first Y-direction extended along Y-direction and the first Y-direction pair rotation optical axis, the first X extended in X direction To main synchronous belt and the first X to secondary synchronous belt；First X connects the main rotation optical axis of the first Y-direction to main toothed belt transmission With one end of the first Y-direction pair rotation optical axis, the 2nd X to secondary toothed belt transmission connect the main rotation optical axis of the first Y-direction with The other end of first Y-direction pair rotation optical axis；The main synchronizing wheel transmission connection of the first duplex main rotation optical axis of the first Y-direction；

First X further includes the first X to master slider to transmission mechanism, and the first X extends and passes through to secondary sliding block, and along Y-direction Wear the first connection optical axis of first print head；First X is respectively arranged on described to master slider and the first X to secondary sliding block The both ends of one connection optical axis；First X also respectively corresponds transmission connection the first X to master slider and the first X to secondary sliding block To main synchronous belt and the 2nd X to secondary synchronous belt.

8. double print head 3D printer motion structures according to claim 4, it is characterised in that: the 2nd X is to driving Mechanism be motor belt actuation, the 2nd X to transmission mechanism be belt gear or screw rod transport mechanism.

9. double print head 3D printer motion structures according to claim 8, it is characterised in that: the 2nd X is to driving Mechanism includes the second motor, the second main transmission synchronizing wheel, the second conveyer belt, the main synchronizing wheel of the second duplex；Second conveyer belt Between the second main transmission synchronizing wheel and the main synchronizing wheel of the second duplex, second motor passes through second main transmission Synchronizing wheel and the second conveyer belt transmission connection main synchronizing wheel of the second duplex.

10. double print head 3D printer motion structures according to claim 9, it is characterised in that: the 2nd X is to transmission Mechanism includes the main rotation optical axis of the second Y-direction extended along Y-direction and the second Y-direction pair rotation optical axis, the 2nd X extended in X direction To main synchronous belt and the 2nd X to secondary synchronous belt；2nd X connects the main rotation optical axis of the second Y-direction to main toothed belt transmission With one end of the second Y-direction pair rotation optical axis, the 2nd X to secondary toothed belt transmission connect the main rotation optical axis of the second Y-direction with The other end of second Y-direction pair rotation optical axis；The main synchronizing wheel transmission connection of the second duplex main rotation optical axis of the second Y-direction；

2nd X further includes the 2nd X to master slider to transmission mechanism, and the 2nd X extends through institute to secondary sliding block, and along Y-direction State the second connection optical axis of the second print head；2nd X is respectively arranged on described second to secondary sliding block to master slider and the 2nd X and connects Connect the both ends of optical axis；2nd X also respectively corresponds transmission connection the 2nd X to master slider and the 2nd X to secondary sliding block to master Synchronous belt and the 2nd X are to secondary synchronous belt.

Technical field

The present invention relates to 3D printing technique field more particularly to a kind of double print head 3D printer motion structures.

Background technique

FDM rapid shaping technique is one kind based on digital model file, and linear heat-fusible materials heating is melted Change, while spray head is under control of the computer, according to section profile information, by material selectivity squeezes out and cools down on the table Curing molding.After the completion of one formable layer, workbench declines lower layer of a layer height reshaping, makes until forming entire entity Type.

In independent double print head 3D printer motion structures currently on the market, two groups of independent print heads are mostly used all It is mounted on X sliding block, then X module is entirely mounted on Y sliding block again drives 3D printer handpiece in X, Y-direction Movement.Such double print head 3D printer motion structures are when X, Y-axis move simultaneously, since X, Y-axis load are different, in Y-axis Bigger inertia force can be generated, causes X, Y-axis to move uncoordinated generation dislocation, to influence the precision of printout.Especially work as 3D When printer works long hours, the disadvantage is especially prominent, even results in printing failure.

Summary of the invention

For overcome the deficiencies in the prior art, technical problem solved by the invention is a kind of double print head 3D printer fortune Dynamic structure, can reduce causes to reduce printing precision because X, Y-axis move uncoordinated generation dislocation, is suitble to print for a long time, and And help to improve printing success rate.

In order to solve the above technical problems, the technical solution adopted in the present invention content is specific as follows:

A kind of double print head 3D printer motion structures, including the first print head, the second print head, the first X is to driving machine Structure, the 2nd X is to driving mechanism, Y-direction driving mechanism, and the first X is to transmission mechanism, and the 2nd X is to transmission mechanism, Y-direction transmission mechanism；Institute The first X is stated to be used to drive first print head to move in X direction to transmission mechanism by the first X to driving mechanism；Institute The 2nd X is stated to be used to drive second print head to move in X direction to transmission mechanism by the 2nd X to driving mechanism；Institute Y-direction driving mechanism is stated for driving first print head and the second print head to transport along Y-direction by the Y-direction transmission mechanism It is dynamic.

Preferably, the Y-direction driving mechanism is motor belt actuation, and the Y-direction transmission mechanism is belt transmission Mechanism or screw rod transport mechanism.

Preferably, the Y-direction driving mechanism includes third motor, third main transmission synchronizing wheel 302, third conveyer belt, and The main synchronizing wheel of three duplexs；The third conveyer belt be set to the third main transmission synchronizing wheel 302 and the main synchronizing wheel of third duplex it Between, the third motor passes through the third main transmission synchronizing wheel 302 and the third conveyer belt transmission connection third duplex master Synchronizing wheel.

Preferably, the Y-direction transmission mechanism includes that the X extended in X direction rotates optical axis to main rotation optical axis and X to pair, The main synchronous belt of Y-direction and Y-direction pair synchronous belt extended along Y-direction；The main toothed belt transmission of Y-direction connects the X to main rotation light To one end of secondary rotation optical axis, the Y-direction pair toothed belt transmission connects the X and rotates light to main rotation optical axis and X to pair by axis and X The other end of axis；The main synchronizing wheel of the third duplex is sequentially connected the X to main rotation optical axis；

The Y-direction transmission mechanism further includes Y-direction master slider, Y-direction pair sliding block, and extends in X direction and run through institute simultaneously State the third connection optical axis of the first print head and the second print head；The Y-direction master slider and Y-direction pair sliding block are respectively arranged on described The both ends of three connection optical axises；The Y-direction master slider and Y-direction pair sliding block respectively correspond the main synchronous belt of the transmission connection Y-direction and Y-direction Secondary synchronous belt.

Preferably, the first X to driving mechanism be motor belt actuation, the first X to transmission mechanism be belt Transport mechanism or screw rod transport mechanism.

Preferably, the first X to driving mechanism include first motor, the first main transmission synchronizing wheel, the first conveyer belt, The main synchronizing wheel of one duplex；First conveyer belt is set between the first main transmission synchronizing wheel and the main synchronizing wheel of the first duplex, The first motor passes through the first main transmission synchronizing wheel and the first conveyer belt transmission connection main synchronizing wheel of the first duplex.

Preferably, the first X to transmission mechanism include along Y-direction extend the main rotation optical axis of the first Y-direction and the first Y-direction Pair rotation optical axis, the first X extended in X direction is to main synchronous belt and the first X to secondary synchronous belt；First X is to main synchronous belt One end of the main rotation optical axis of first Y-direction that is sequentially connected and the first Y-direction pair rotation optical axis, the 2nd X are passed to secondary synchronous belt The other end of dynamic connection first Y-direction main rotation optical axis and the first Y-direction pair rotation optical axis；The main synchronizing wheel of first duplex passes The dynamic connection main rotation optical axis of the first Y-direction；

First X further includes the first X to master slider to transmission mechanism, and the first X extends to secondary sliding block, and along Y-direction And through the first connection optical axis of first print head；First X is respectively arranged on institute to master slider and the first X to secondary sliding block State the both ends of the first connection optical axis；First X also respectively corresponds transmission connection described the to master slider and the first X to secondary sliding block One X is to main synchronous belt and the 2nd X to secondary synchronous belt.

Preferably, the 2nd X to driving mechanism be motor belt actuation, the 2nd X to transmission mechanism be belt Transport mechanism or screw rod transport mechanism.

Preferably, the 2nd X to driving mechanism include the second motor, the second main transmission synchronizing wheel, the second conveyer belt, the The main synchronizing wheel of two duplexs；Second conveyer belt is set between the second main transmission synchronizing wheel and the main synchronizing wheel of the second duplex, Second motor passes through the second main transmission synchronizing wheel and the second conveyer belt transmission connection main synchronizing wheel of the second duplex.

Preferably, the 2nd X to transmission mechanism include along Y-direction extend the main rotation optical axis of the second Y-direction and the second Y-direction Pair rotation optical axis, the 2nd X extended in X direction is to main synchronous belt and the 2nd X to secondary synchronous belt；2nd X is to main synchronous belt One end of the main rotation optical axis of second Y-direction that is sequentially connected and the second Y-direction pair rotation optical axis, the 2nd X are passed to secondary synchronous belt The other end of dynamic connection second Y-direction main rotation optical axis and the second Y-direction pair rotation optical axis；The main synchronizing wheel of second duplex passes The dynamic connection main rotation optical axis of the second Y-direction；

2nd X further includes the 2nd X to master slider to transmission mechanism, and the 2nd X extends and passes through to secondary sliding block, and along Y-direction Wear the second connection optical axis of second print head；2nd X is respectively arranged on described to master slider and the 2nd X to secondary sliding block The both ends of two connection optical axises；2nd X also respectively corresponds transmission connection the 2nd X to master slider and the 2nd X to secondary sliding block To main synchronous belt and the 2nd X to secondary synchronous belt.

Compared with prior art, the beneficial effects of the present invention are:

1. double print head 3D printer motion structures of the invention drive since two X have been respectively adopted in it to transmission mechanism Dynamic two different print heads make the movement in X-direction, and make the side Y using what a Y-direction transmission mechanism drove two print heads To movement, not only may be implemented self-movement of the doubles head in X-direction and Y-direction, and since two X are to transmission mechanism And the Y-direction transmission mechanism three is independent of one another, to facilitate the movement for equably driving two print heads, solves The non-uniform problem of driving force, greatly reduce appearance causes to drop because long-time moves uncoordinated generation dislocation using X, Y-axis The case where low printing precision, meets the use demand of user.

2. the Y-direction driving mechanism, the first X to driving mechanism, the 2nd X to driving mechanism be motor pulley driving machine Structure, structure very simple help to reduce production cost.

To being all using major and minor transmission optical axis with Y-direction transmission mechanism, major and minor synchronous belt and major and minor sliding block are formed 3.X Belt gear go the first print head and the second print head is driven to make X and move to movement and Y-direction, relative to using screw rod biography Motivation structure greatly reduces the motional inertia of the first print head and the second print head, so as to be accurately controlled first dozen The movement position of head and the second print head respectively in X-direction and Y-direction is printed, the quality of printing is greatly increased.

The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of double print head 3D printer motion structures more preferably embodiment of the invention.

Fig. 2 is enlarged structure schematic diagram at the A of Fig. 1；

Fig. 3 is enlarged structure schematic diagram at the B of Fig. 1.

Wherein, each appended drawing reference are as follows:

1, the main rotation optical axis of the first Y-direction；2, Y-direction pair sliding block；3, Y-direction pair synchronous belt；4, the second Y-direction pair rotates optical axis；5, Fixing seat；6, the first X is to secondary synchronous belt；7, the first X is to secondary sliding block；8, X rotates optical axis to pair；9, the 2nd X is to secondary synchronous belt； 10, the 2nd X is to secondary sliding block；11, the main rotation optical axis of the second Y-direction；12, the main synchronous belt of Y-direction；13, Y-direction master slider；14, the first Y-direction Pair rotation optical axis；15, the 2nd X is to master slider；16, the 2nd X is to main synchronous belt；17, X is to main rotation optical axis；18, the first X is to master Sliding block；19, the first X is to main synchronous belt；20, the first connection optical axis；21, the second connection optical axis；22, the first print head；23, second Print head；24, third connects optical axis；

101, first motor；102, the first main transmission synchronizing wheel；103, the first conveyer belt；104, the main synchronization of the first duplex Wheel；

201, the second motor；202, the second main transmission synchronizing wheel；203, the second conveyer belt；204, the main synchronization of the second duplex Wheel；

301, third motor；302, third main transmission synchronizing wheel；303, third conveyer belt；304, the main synchronization of third duplex Wheel.

Specific embodiment

It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with Attached drawing and preferred embodiment, to specific embodiment, structure, feature and its effect according to the present invention, detailed description are as follows:

As shown in Figure 1 to Figure 3, double print head 3D printer motion structures of the invention, including the first print head 22, second Print head 23, the first X is to driving mechanism, and the 2nd X is to driving mechanism, Y-direction driving mechanism, the first X to transmission mechanism, the 2nd X to Transmission mechanism, Y-direction transmission mechanism；First X is used to drive described the to transmission mechanism by the first X to driving mechanism One print head 22 moves in X direction；2nd X is used for through the 2nd X to driving mechanism to described in transmission mechanism driving Second print head 23 moves in X direction；The Y-direction driving mechanism is used to drive described first dozen by the Y-direction transmission mechanism Print head 22 and the second print head 23 are moved along Y-direction.

In the present embodiment, the Y-direction driving mechanism is motor belt actuation, and the Y-direction transmission mechanism is skin Tape transport.

Specifically, the Y-direction driving mechanism includes third motor 301, third main transmission synchronizing wheel 302, third conveyer belt 303, the main synchronizing wheel 304 of third duplex；It is double with third that the third conveyer belt 303 is set to the third main transmission synchronizing wheel 302 Join between main synchronizing wheel 304, the third motor 301 is passed by the third main transmission synchronizing wheel 302 and third conveyer belt 303 The dynamic connection main synchronizing wheel 304 of third duplex.

The Y-direction transmission mechanism includes that the X extended in X direction rotates optical axis 8 to main rotation optical axis 17 and X to pair, along the side Y To the main synchronous belt 12 of Y-direction and Y-direction pair synchronous belt 3 of extension；The main synchronous belt 12 of Y-direction is sequentially connected the X to main rotation light To one end of secondary rotation optical axis 8, the Y-direction pair synchronous belt 3 is sequentially connected the X to main rotation optical axis 17 and X to pair by axis 17 and X Rotate the other end of optical axis 8；The main synchronizing wheel 304 of third duplex is sequentially connected the X to main rotation optical axis 17；

The Y-direction transmission mechanism further includes Y-direction master slider 13, Y-direction pair sliding block 2, and extends in X direction and run through simultaneously First print head 22 connects optical axis 24 with the third of the second print head 23；The Y-direction master slider 13 and Y-direction pair sliding block 2 divide Not She Yu third connection optical axis 24 both ends；The Y-direction master slider 13 and Y-direction pair sliding block 2 respectively correspond transmission connection institute State the main synchronous belt 12 of Y-direction and Y-direction pair synchronous belt 3.

It is mobile that the first print head 22 and the second print head 23 of double print head 3D printer motion structures of the invention make Y-direction Working principle it is as follows:

Third main transmission synchronizing wheel 302 is driven to rotate when third motor 301 rotates, the third main transmission synchronizing wheel 302 Drive the main synchronizing wheel 304 of third duplex to rotate by third conveyer belt 303, the main rotation of synchronizing wheel 304 of third duplex then drive X to Main rotation optical axis 17 rotates, and X is rotated to main rotation optical axis 17 drives the main synchronous belt 12 of Y-direction and Y-direction pair synchronous belt 3 to slide, and leads to The sliding for crossing the main synchronous belt 12 of the Y-direction and Y-direction pair synchronous belt 3 drives X to rotate to pair rotation optical axis 8；Main 12 He of synchronous belt of Y-direction The sliding of Y-direction pair synchronous belt 3 then drives Y-direction master slider 13 and Y-direction pair sliding block 2 to slide along Y-direction, to drive the first print head 22 Make the movement of Y-direction with the second print head 23.

In the present embodiment, the first X is motor belt actuation to driving mechanism, and the first X is to transmission Mechanism is belt transmission agency

Specifically, the first X includes first motor 101 to driving mechanism, and the first main transmission synchronizing wheel 102, first passes Send band 103, the main synchronizing wheel 104 of the first duplex；First conveyer belt 103 is set to the first main transmission synchronizing wheel 102 and the Between the main synchronizing wheel 104 of one duplex, the first motor 101 passes through the first main transmission synchronizing wheel 102 and the first conveyer belt The 103 transmission connection main synchronizing wheels 104 of the first duplex.

First X includes that the main rotation optical axis 1 of the first Y-direction extended along Y-direction and the first Y-direction pair rotate to transmission mechanism Optical axis 14, the first X extended in X direction is to main synchronous belt 19 and the first X to secondary synchronous belt 6；First X is to main synchronous belt 19 One end of the main rotation optical axis 1 of first Y-direction that is sequentially connected and the first Y-direction pair rotation optical axis 14, the 2nd X is to secondary synchronous belt The other end of 9 transmission connection first Y-directions main rotation optical axis 1 and the first Y-direction pair rotation optical axis 14；The first duplex master is same The 104 transmission connection main rotation optical axis 1 of the first Y-direction of step wheel；

First X further includes the first X to master slider 18 to transmission mechanism, and the first X prolongs to secondary sliding block 7, and along Y-direction Stretch and run through the first connection optical axis 20 of first print head 22；First X is to master slider 18 and the first X to secondary sliding block 7 It is respectively arranged on the both ends of the first connection optical axis 20；First X is also right respectively to master slider 18 and the first X to secondary sliding block 7 The first X should be sequentially connected to main synchronous belt 19 and the 2nd X to secondary synchronous belt 9.

First print head 22 of double print head 3D printer motion structures of the invention makees the mobile working principle of X-direction such as Under:

First motor 101 drives the first main transmission synchronizing wheel 102 to rotate when rotating, the first main transmission synchronizing wheel 102 The main synchronizing wheel 104 of the first duplex is driven to rotate by the first conveyer belt 103, the main rotation of synchronizing wheel 104 of the first duplex then drives the The main rotation optical axis 1 of one Y-direction rotates, and the main rotation of rotation optical axis 1 of the first Y-direction drives the first X same to main synchronous belt 19 and the first X to pair It walks band 6 to slide, and drives the first Y-direction pair to turn to main synchronous belt 19 and the first X to the sliding of secondary synchronous belt 6 by the first X Dynamic optical axis 14 rotates；First X is slided to main synchronous belt 19 and the first X to secondary synchronous belt 6 then drives the first X to master slider 18 and the One X is slided in X direction to secondary sliding block 7, so that the first print head 22 of drive makees the movement of X-direction.

In the present embodiment, the 2nd X is motor belt actuation to driving mechanism, and the 2nd X is to transmission Mechanism is belt transmission agency.

Specifically, the 2nd X includes the second motor 201 to driving mechanism, and the second main transmission synchronizing wheel 202, second passes Send band 203, the main synchronizing wheel 204 of the second duplex；Second conveyer belt 203 is set to the second main transmission synchronizing wheel 202 and the Between the main synchronizing wheel 204 of two duplexs, second motor 201 passes through the second main transmission synchronizing wheel 202 and the second conveyer belt The 203 transmission connection main synchronizing wheels 204 of the second duplex.

2nd X includes that the main rotation optical axis 11 of the second Y-direction extended along Y-direction and the second Y-direction pair turn to transmission mechanism Dynamic optical axis 4, the 2nd X extended in X direction is to main synchronous belt 16 and the 2nd X to secondary synchronous belt 9；2nd X is to main synchronous belt One end of 16 transmission connection second Y-directions main rotation optical axis 11 and the second Y-direction pair rotation optical axis 4, the 2nd X are synchronous to pair The other end with 9 transmission connection second Y-directions main rotation optical axis 11 and the second Y-direction pair rotation optical axis 4；The second duplex master Synchronizing wheel 204 is sequentially connected the main rotation optical axis 11 of second Y-direction；

2nd X further includes the 2nd X to master slider 15 to transmission mechanism, and the 2nd X extends to secondary sliding block 10, and along Y-direction And through the second connection optical axis 21 of second print head 23；2nd X divides to master slider 15 and the 2nd X to secondary sliding block 10 Not She Yu it is described second connection optical axis 21 both ends；2nd X is also respectively corresponded to master slider 15 and the 2nd X to secondary sliding block 10 The 2nd X be sequentially connected to main synchronous belt 16 and the 2nd X to secondary synchronous belt 9.

Second print head 23 of double print head 3D printer motion structures of the invention makees the mobile working principle of X-direction such as Under:

Second motor 201 drives the second main transmission synchronizing wheel 202 to rotate when rotating, the second main transmission synchronizing wheel 202 Send band that the main synchronizing wheel 204 of the second duplex is driven to rotate by second, the second main synchronizing wheel rotation then drives the main rotation of the second Y-direction Optical axis 11 rotates, and the main rotation of rotation optical axis 11 of the second Y-direction drives the 2nd X sliding to main synchronous belt 16 and the 2nd X to secondary synchronous belt 9 It is dynamic, and drive the second Y-direction pair to rotate optical axis 4 to main synchronous belt 16 and the 2nd X to the sliding of secondary synchronous belt 9 by the 2nd X Rotation；2nd X is slided to main synchronous belt 16 and the 2nd X to secondary synchronous belt 9 then drives the 2nd X to master slider 15 and the 2nd X to pair Sliding block 10 slides in X direction, so that the second print head 23 of drive makees the movement of X-direction.

In the present embodiment, the Y-direction transmission mechanism, the first X is to transmission mechanism and the 2nd X to also logical between transmission mechanism Fixing seat 5 is crossed to connect, greatly increases structural stability of the invention.

It should be noted that in other embodiments, the Y-direction transmission mechanism, the first X to transmission mechanism and the 2nd X to Transmission mechanism can also be lead screw transmission mechanism.

The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto, The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention Claimed range.