CN113199758A

CN113199758A - 3D print head drive structure

Info

Publication number: CN113199758A
Application number: CN202110622714.6A
Authority: CN
Inventors: 边列峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-08-03

Abstract

The invention discloses a 3D printer nozzle driving structure which comprises a machine body, a supporting table, a fixed seat, a printing platform, a nozzle, a guiding structure, a driving structure and a fixed structure, wherein a sliding structure is arranged in the machine body and comprises a fixed block, a first guide rail, a second guide rail, a third guide rail, a fourth guide rail, a first sliding block, a second sliding block, a third sliding block, a fourth sliding block, a fifth sliding rail, a sixth sliding rail and a sliding seat, the driving structure is arranged on the sliding structure, the supporting table is fixedly connected to the bottom surface of an inner cavity of the machine body, the fixed seat is fixedly connected to the upper surface of the supporting table, an inner cavity is formed in the fixed seat, the fixed structure is arranged in the inner cavity of the fixed seat, and a limiting hole is formed in the side edge of the printing platform. According to the invention, the four driving motors are fixedly installed, so that the inertia of the spray head moving longitudinally and transversely along the horizontal plane is balanced, and the printing precision is improved.

Description

3D print head drive structure

Technical Field

The invention relates to the field of riding 3D printing, in particular to a 3D printer nozzle driving structure.

Background

The 3D printer is also called a three-dimensional printer (3DP), which is a machine of rapid prototyping technology, is an additive manufacturing technology, which is based on a digital model file, and manufactures a three-dimensional object by printing a layer of adhesive material by using a special adhesive material such as wax, powdered metal or plastic. Because 3D printing technique can be with low-cost quick product design that carries on, and because of reasons such as the price is lower, convenient to use application is more extensive, and the 3D printer is different according to theory of operation, and several kinds such as FDM, SLA, DLP mainly divide.

Because the cost of the 3D printer of FDM principle is lower some than the printer of other principles, so the 3D printer of FDM principle is more common, and the application is also more extensive, and the 3D printer of common structure also can carry out the speed governing and print, nevertheless owing to receive the influence of factors such as structure, can not realize real quick printing, FDM: the 3D printer is generally conventional printing speed, the time of making the model is longer, can not realize the printing of higher speed, and print the in-process moreover because often receive inertia influence, make to extrude the head and can't steadily pinpoint, and it has certain difference to require with the printing accuracy, conventional fdm3D printer is horizontal and longitudinal movement along the horizontal plane by two motor drive shower nozzles respectively, and remove by the vertical direction of third motor drive print platform, three-dimensional object is made to bonding material layer upon layer. The invention mainly aims at the driving of the horizontal printing nozzle, one of two motors driven in the horizontal direction can not be fixed due to the structure reason, and must move along with the nozzle along one direction to form larger inertia, and can only drive the nozzle to move along one direction respectively, and the prior art has the following defects by combining the following steps: 1. the transverse inertia and the longitudinal inertia of the spray head are uneven in size and cannot move accurately and quickly, 2. the transverse motor and the longitudinal motor can only be respectively driven and cannot increase the speed, and 3. the motor load in one direction is overlarge due to the uneven inertia. Therefore, a 3D printer head driving structure is proposed to address the above problems.

Disclosure of Invention

The 3D print head driving structure is provided in the embodiment and is used for solving the problems that the transverse inertia and the longitudinal inertia of the common 3D print head in the prior art are uneven in size, cannot move accurately and quickly, and the transverse motor and the longitudinal motor can only drive the motor which cannot increase the speed and cause overlarge motor load in one direction due to the uneven inertia.

According to one aspect of the invention, a 3D printer nozzle driving structure is provided, which comprises a machine body, a supporting table, a fixed seat, a printing platform, a nozzle, a guide structure, a driving structure and a fixed structure;

organism internally mounted is provided with sliding structure, sliding structure includes fixed block, first guide rail, second guide rail, third guide rail, fourth guide rail, first slider, second slider, third slider, fourth slider, fifth slide rail, sixth slide rail and sliding seat, the last drive structure of installing of sliding structure, the inner chamber bottom surface department fixedly connected with brace table of organism, the upper surface department fixedly connected with fixing base of brace table, the inner chamber has been seted up to the inside of fixing base, install fixed knot in the inner chamber of fixing base and construct, print platform's side department has seted up spacing hole.

Further, the equal fixedly connected with fixed block in four corners department of the inboard lateral wall of organism, four respectively fixedly connected with first guide rail, second guide rail, third guide rail and fourth guide rail between the fixed block.

Furthermore, a first sliding block is arranged on the first guide rail in a sliding mode, a second sliding block is arranged on the second guide rail in an interactive mode, a third sliding block is arranged on the third guide rail in a sliding mode, and a fourth sliding block is arranged on the fourth guide rail in a sliding mode.

Furthermore, a sixth sliding rail is fixedly connected between the first sliding block and the second sliding block, and a fifth sliding rail is fixedly connected between the third sliding block and the fourth sliding block.

Furthermore, a sliding seat is arranged on the fifth sliding rail in a sliding manner, and the sixth sliding rail penetrates through the sliding seat and is connected with the sliding seat in a sliding manner.

Furthermore, a spray head is fixedly arranged at the side edge of the sliding seat.

Further, the drive structure includes first servo motor, second servo motor, third servo motor, fourth servo motor, motor rotation wheel, rotation wheel and belt, the four corners department of organism is according to clockwise order fixed set gradually first servo motor, second servo motor, third servo motor, fourth servo motor, the equal fixedly connected with motor rotation wheel in first servo motor, second servo motor, third servo motor and fourth servo motor's output shaft end.

Furthermore, the first sliding block, the second sliding block, the third sliding block and the fourth sliding block are respectively connected with two rotating wheels in a rotating mode, the sliding seat is connected with four rotating wheels in a rotating mode, a belt is arranged between the rotating wheels and the motor rotating wheels in a surrounding mode, and the belt is distributed in a shape like a Chinese character 'tian'.

Further, a slot is formed in the bottom surface of the printing platform, a limiting cylinder is fixedly connected to the upper surface of the supporting platform, and the limiting cylinder extends into the slot of the printing platform.

Further, fixed knot constructs including spacing slider, spacing spring, connecting rod, fixed plate and spacer pin, it is provided with spacing slider to slide in the inner chamber of fixing base, one side lateral wall department fixedly connected with connecting rod's of spacing slider one end, the other end of connecting rod runs through the inner chamber lateral wall of fixing base and extends to outside the wall, the one end department fixedly connected with fixed plate of connecting rod, the lateral wall department fixedly connected with spacer pin of fixed plate, the spacer pin extends to print platform's spacing downthehole, one side lateral wall department fixedly connected with spacing spring's of spacing slider one end, spacing spring's other end fixedly connected to fixing base's inner chamber lateral wall department, spacing spring is in compression state.

According to the embodiment of the invention, the four driving motors are fixedly arranged, so that the inertia of the spray heads moving longitudinally and transversely along the horizontal plane is balanced, and the printing precision is improved; the four motors drive the spray heads to move simultaneously, so that the printing speed is increased; the load of each driving motor is reduced, and the printing stability is improved.

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, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic top view of an embodiment of the present invention;

FIG. 3 is a schematic top view of a belt according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of an internal connection structure of a printing platform according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of the structure of FIG. 4A according to an embodiment of the present invention;

fig. 6 is a schematic connection diagram of a limiting cylinder according to an embodiment of the invention.

In the figure: 1. the machine body, 2, a fixed block, 3, a first guide rail, 4, a second guide rail, 5, a third guide rail, 6, a fourth guide rail, 7, a first slider, 8, a second slider, 9, a third slider, 10, a fourth slider, 11, a fifth slide rail, 12, a sixth slide rail, 13, a sliding seat, 14, a spray head, 15, a first servo motor, 16, a second servo motor, 17, a third servo motor, 18, a fourth servo motor, 19, a motor rotating wheel, 20, a rotating wheel, 21, a belt, 22, a supporting table, 23, a fixed seat, 24, a limiting cylinder, 25, a printing platform, 26, a limiting slider, 27, a limiting spring, 28, a connecting rod, 29, a fixed plate, 30 and a limiting pin.

Detailed Description

In order to make the technical solutions of the present invention better understood, 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.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The guide structure and the driving structure in this embodiment may be applicable to various 3D printing platforms, for example, the following 3D printing platform is provided in this embodiment, and the guide structure and the driving structure in this embodiment may perform a printing work at the following 3D printing platform.

The 3D printing platform comprises a platform plate arranged at the lower end of a printer, a rotating device and a sliding device, wherein the rotating device and the sliding device are used for driving the platform plate to move; the lower end of the rotary seat is provided with a sliding device, the sliding device comprises a sliding seat, a base and a driving motor, the upper end of the sliding seat is fixedly connected with the rotary seat, the lower end of the sliding seat is slidably mounted on the base, the driving motor is fixedly mounted at the opposite position of one side of the sliding seat on the base, a thread groove is arranged in the sliding seat, the thread groove is provided with a thread head in threaded connection, the thread head is in transmission connection with the driving motor through a guide rod, preferably, a sliding groove is arranged in the base, the lower end of the sliding seat is provided with a sliding block close to one side of the driving motor, the sliding block is embedded in the sliding groove and is in sliding connection, preferably, a disc plate is fixedly mounted at the upper end of the bearing, an inserting column is arranged at the lower end of the platform plate, a slot is arranged corresponding to the disc plate, the platform plate is mounted on the disc plate in an attaching mode through the inserting column and the slot, preferably, magnets which attract each other are arranged in the inserting column and the slot, the bearing is a crossed roller bearing, the bearing is provided with a C-shaped snap ring at the outer end of the rotating shaft to abut against the bearing.

Of course, the embodiment can also be used for 3D printing platforms with other structures. Here, description is not repeated, and a 3D printer head driving structure according to an embodiment of the present invention is described below.

Referring to fig. 1-6, a 3D printer head driving structure includes a body 1, a supporting platform 22, a fixing base 23, a printing platform 25, a head 14, a guiding structure, a driving structure, and a fixing structure;

the printer comprises a machine body 1, and is characterized in that a sliding structure is arranged in the machine body 1 and comprises a fixed block 2, a first guide rail 3, a second guide rail 4, a third guide rail 5, a fourth guide rail 6, a first slide block 7, a second slide block 8, a third slide block 9, a fourth slide block 10, a fifth slide rail 11, a sixth slide rail 12 and a sliding seat 13, wherein a driving structure is arranged on the sliding structure, a supporting table 22 is fixedly connected to the bottom surface of an inner cavity of the machine body 1, a fixed seat 23 is fixedly connected to the upper surface of the supporting table 22, an inner cavity is formed in the fixed seat 23, a fixed structure is arranged in the inner cavity of the fixed seat 23, and a limit hole is formed in the side edge of a printing platform 25.

Four corners of the inner side wall of the machine body 1 are fixedly connected with fixed blocks 2, and a first guide rail 3, a second guide rail 4, a third guide rail 5 and a fourth guide rail 6 are fixedly connected among the four fixed blocks 2 respectively; a first sliding block 7 is arranged on the first guide rail 3 in a sliding manner, a second sliding block 8 is arranged on the second guide rail 4 in an interactive manner, a third sliding block 9 is arranged on the third guide rail 5 in a sliding manner, a fourth sliding block 10 is arranged on the fourth guide rail 6 in a sliding manner, and the first sliding block 7, the second sliding block 8, the third sliding block 9 and the fourth sliding block 10 can be respectively guided by the first guide rail 3, the second guide rail 4, the third guide rail 5 and the fourth guide rail 6; a sixth slide rail 12 is fixedly connected between the first slide block 7 and the second slide block 8, and a fifth slide rail 11 is fixedly connected between the third slide block 9 and the fourth slide block 10; the fifth slide rail 11 is provided with a slide seat 13 in a sliding manner, the sixth slide rail 12 penetrates through the slide seat 13 and is connected with the slide seat 13 in a sliding manner, and the fifth slide rail 11 and the sixth slide rail 12 can guide the slide seat 13; a spray head 14 is fixedly arranged at the side edge of the sliding seat 13; the driving structure comprises a first servo motor 15, a second servo motor 16, a third servo motor 17, a fourth servo motor 18, a motor rotating wheel 19, a rotating wheel 20 and a belt 21, wherein the first servo motor 15, the second servo motor 16, the third servo motor 17 and the fourth servo motor 18 are sequentially and fixedly arranged at the four corners of the machine body 1 according to a clockwise sequence, and the motor rotating wheel 19 is fixedly connected to the tail ends of output shafts of the first servo motor 15, the second servo motor 16, the third servo motor 17 and the fourth servo motor 18 and can respectively drive the four motor rotating wheels 19 to rotate through the first servo motor 15, the second servo motor 16, the third servo motor 17 and the fourth servo motor 18; the first sliding block 7, the second sliding block 8, the third sliding block 9 and the fourth sliding block 10 are respectively connected with two rotating wheels 20 in a rotating mode, the sliding seat 13 is connected with four rotating wheels 20 in a rotating mode, a belt 21 is arranged between the rotating wheels 20 and the motor rotating wheel 19 in a surrounding mode, and the belt 21 is distributed in a shape like a Chinese character 'tian'. The rotation of the motor rotating wheel 19 can drive the belt 21 to move, so as to drive the sliding seat 13 to move, and further drive the spray head 14 to move; a slot is formed in the bottom surface of the printing platform 25, a limiting cylinder 24 is fixedly connected to the upper surface of the supporting platform 22, and the limiting cylinder 24 extends into the slot of the printing platform 25; the fixing structure comprises a limiting slide block 26, a limiting spring 27, a connecting rod 28, a fixing plate 29 and a limiting pin 30, a limiting slide block 26 is slidably arranged in the inner cavity of the fixed seat 23, one end of a connecting rod 28 is fixedly connected to the side wall of one side of the limiting slide block 26, the other end of the connecting rod 28 penetrates through the side wall of the inner cavity of the fixed seat 23 and extends out of the inner cavity, one end of the connecting rod 28 is fixedly connected with a fixed plate 29, a limit pin 30 is fixedly connected to the side wall of the fixing plate 29, the limit pin 30 extends into a limit hole of the printing platform 25, one end of a limiting spring 27 is fixedly connected to the side wall of one side of the limiting slide block 26, the other end of the limiting spring 27 is fixedly connected to the side wall of the inner cavity of the fixed seat 23, the limiting spring 27 is in a compressed state, and the printing platform 25 can be fixed through the limiting action of the limiting pin 30.

When the invention is used, the first servo motor 15 and the fourth servo motor 18 rotate clockwise, the second servo motor 16 and the third servo motor 17 rotate anticlockwise to drive the sliding seat 13 to move longitudinally, the first servo motor 15 and the second servo motor 16 rotate clockwise, the third servo motor 17 and the fourth servo motor 18 rotate anticlockwise to drive the sliding seat 13 to move transversely, the spray head 14 can be driven to move by the movement of the sliding seat 13, so that the printing work is realized, when the printing platform 25 needs to be dismounted from the device, the fixing plate 29 can be manually pulled to move, the limiting pin 30 can be driven to move by the movement of the fixing plate 29, the limiting pin 30 is separated from the limiting hole of the printing platform 25 by the movement of the limiting pin 30, then the printing platform 25 moves upwards to separate the printing platform 25 from the fixing seat 23, the printing platform 25 can be detached, and the subsequent maintenance and repair work is facilitated.

The invention has the advantages that:

1. the four driving motors are fixedly installed, the inertia of the spray heads moving longitudinally and transversely along the horizontal plane is balanced, and the printing precision is improved;

2. the four motors drive the spray heads to move simultaneously, so that the printing speed is increased;

3. the load of each driving motor is reduced, and the printing stability is improved.

It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a 3D print head drive structure which characterized in that: comprises a machine body (1), a supporting platform (22), a fixed seat (23), a printing platform (25), a spray head (14), a guide structure, a driving structure and a fixed structure;

organism (1) internally mounted is provided with sliding structure, sliding structure includes fixed block (2), first guide rail (3), second guide rail (4), third guide rail (5), fourth guide rail (6), first slider (7), second slider (8), third slider (9), fourth slider (10), fifth slide rail (11), sixth slide rail (12) and sliding seat (13), the last drive structure that installs of sliding structure, the inner chamber bottom surface department fixedly connected with brace table (22) of organism (1), the last surface department fixedly connected with fixing base (23) of brace table (22), the inner chamber has been seted up to the inside of fixing base (23), install fixed knot in the inner chamber of fixing base (23) and construct, spacing hole has been seted up in the side department of print platform (25).

2. The 3D printer head driving structure according to claim 1, wherein: equal fixedly connected with fixed block (2), four in the four corners department of the inboard lateral wall of organism (1) be fixedly connected with first guide rail (3), second guide rail (4), third guide rail (5) and fourth guide rail (6) respectively between fixed block (2).

3. The 3D printer head driving structure according to claim 1, wherein: the sliding mechanism is characterized in that a first sliding block (7) is arranged on the first guide rail (3) in a sliding mode, a second sliding block (8) is arranged on the second guide rail (4) in an interactive mode, a third sliding block (9) is arranged on the third guide rail (5) in a sliding mode, and a fourth sliding block (10) is arranged on the fourth guide rail (6) in a sliding mode.

4. The 3D printer head driving structure according to claim 1, wherein: and a sixth sliding rail (12) is fixedly connected between the first sliding block (7) and the second sliding block (8), and a fifth sliding rail (11) is fixedly connected between the third sliding block (9) and the fourth sliding block (10).

5. The 3D printer head driving structure according to claim 1, wherein: the fifth slide rail (11) is provided with a slide seat (13) in a sliding manner, and the sixth slide rail (12) penetrates through the slide seat (13) and is connected with the slide seat (13) in a sliding manner.

6. The 3D printer head driving structure according to claim 1, wherein: and a spray head (14) is fixedly arranged at the side edge of the sliding seat (13).

7. The 3D printer head driving structure according to claim 1, wherein: the driving structure comprises a first servo motor (15), a second servo motor (16), a third servo motor (17), a fourth servo motor (18), a motor rotating wheel (19), a rotating wheel (20) and a belt (21), wherein the four corners of the machine body (1) are sequentially and fixedly provided with the first servo motor (15), the second servo motor (16), the third servo motor (17) and the fourth servo motor (18) according to a clockwise sequence, and the motor rotating wheel (19) is fixedly connected to the tail ends of output shafts of the first servo motor (15), the second servo motor (16), the third servo motor (17) and the fourth servo motor (18).

8. The 3D printer head driving structure according to claim 7, wherein: the utility model discloses a motor, including first slider (7), second slider (8), third slider (9), fourth slider (10) go up to rotate respectively and be connected with two and rotate wheel (20), it is connected with four and rotates wheel (20) to rotate on sliding seat (13), it is provided with belt (21) to rotate between wheel (20) and the motor and rotate wheel (19), belt (21) are "field" style of calligraphy and distribute.

9. The 3D printer head driving structure according to claim 1, wherein: the slot has been seted up to the bottom surface department of print platform (25), the upper surface department fixedly connected with of brace table (22) spacing cylinder (24), in spacing cylinder (24) extended to print platform's (25) slot.

10. The 3D printer head driving structure according to claim 1, wherein: the fixing structure comprises a limiting slide block (26), a limiting spring (27), a connecting rod (28), a fixing plate (29) and a limiting pin (30), the limiting slide block (26) is arranged in an inner cavity of the fixing seat (23) in a sliding mode, one end of the connecting rod (28) is fixedly connected to one side wall of the limiting slide block (26), the other end of the connecting rod (28) penetrates through the inner cavity side wall of the fixing seat (23) and extends out of the inner cavity side wall, the fixing plate (29) is fixedly connected to one end of the connecting rod (28), the limiting pin (30) is fixedly connected to the side wall of the fixing plate (29), the limiting pin (30) extends into a limiting hole of the printing platform (25), one end of the limiting spring (27) is fixedly connected to one side wall of the limiting slide block (26), and the other end of the limiting spring (27) is fixedly connected to the inner cavity side wall of the fixing seat (23), the limiting spring (27) is in a compressed state.