CN112477119A - Molding 3D printer - Google Patents

Abstract

A molding 3D printer provided by the present invention includes: a molding driving mechanism, on which is provided a printing head for molding and a horizontal driving part for driving the printing head; a carrying mechanism for holding a molding workpiece; the carrying mechanism includes a molding platform and Vertical drive assembly; the vertical drive assembly drives the forming platform to reciprocate in the vertical direction of the print head and the horizontal drive part drives the print head to move in the horizontal direction, so that the print head forms the workpiece on the forming platform, and the 3D printer has a simple structure , easy to use.

Description

A molding 3D printer

technical field

The invention belongs to the technical field of 3D printing, and in particular relates to a molding 3D printer.

Background technique

3D printer is a rapid prototyping technology, also known as additive manufacturing, which is a technology that builds objects by layer-by-layer printing based on digital model files, using adhesive materials such as powdered metal or plastic.

3D printing is usually achieved using digital technology material printers. It is often used to make models in the fields of mold making, industrial design, etc., and is gradually used in the direct manufacturing of some products. There are already parts printed using this technology; this technology is used in jewelry, footwear, industrial design, architecture, etc. , engineering and construction, automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms, and other fields.

However, since 3D printing uses layered processing to work, the 3D printing equipment needs high precision to achieve the quality of the printed products. The driving structure of the print head needs to ensure the accuracy. In order to make the print head move conveniently and accurately To a fixed position, compared with the common driving methods, the driving structure is often driven by a high-precision screw, which makes the driving process easy to control, while large-scale molding equipment requires a screw-driven structure with a large travel distance, but the high precision is large. The cost of the screw drive structure of the size increases, which makes the manufactured 3D printer more expensive, and it is difficult for ordinary users to bear such a cost.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the present invention proposes a molding 3D printer.

A molding 3D printer provided by the present invention includes:

a forming drive mechanism, on which a printing head for forming and a horizontal driving part for driving the printing head are arranged;

Carrying mechanism, used to hold the forming workpiece;

The carrying mechanism includes a forming platform and a vertical drive assembly;

The forming platform is driven to reciprocate in the vertical direction of the printing head by the vertical driving assembly, and the horizontal driving part drives the printing head to move in the horizontal direction, so that the printing head is moved on the forming platform Form the workpiece.

Preferably, the forming driving mechanism includes a vertical driving module, and the vertical driving module drives the printing head to move along the movement direction of the forming platform, so that the printing head and the forming platform face opposite directions move.

Preferably, the horizontal driving part includes a first driving component and a second driving component, the second driving component drives the first driving component to move, and the first driving component drives the print head to move;

By arranging the driving direction of the second driving assembly and the driving direction of the first driving assembly to be perpendicular to each other, the print head is moved in the direction of the horizontal plane.

Preferably, the first drive assembly and the second drive assembly are driven by belts;

The horizontal drive part includes a position sensor mounted on a conveying belt, and a position in the horizontal direction of the position of the print head is detected by the position sensor to limit the print head at a fixed position .

Preferably, the horizontal driving part further includes a clamping module, and the transmission belt is clamped by the clamping module to restrict the movement of the transmission belt, so that the print head is limited to a fixed position.

Preferably, the vertical drive assembly includes a drive source and a screw rod, and a nut seat is mounted on the forming platform;

The screw rod is threadedly connected with the nut seat, so that the driving source drives the screw rod to drive the forming platform to move.

Preferably, the number of the screw rods is two, and the screw rods are arranged on both sides of the connecting portion;

The vertical drive assembly further includes a timing pulley, and the timing pulley is driven to rotate by the driving source, and then the two screw rods are driven by the timing pulley to move.

Preferably, the number of the driving sources is two; the carrying mechanism further includes an alternating component, and the alternating component includes a mounting substrate for holding the two driving sources and a driving portion for driving the mounting substrate to move;

One of the driving sources drives the screw rod to move, and the drive part drives the mounting substrate to move, so that the two driving sources alternately drive the screw rod to move.

Preferably, the driving part includes an air cylinder, and the air cylinder is fixed on the base surface;

The drive source is fixed on both sides of the mounting base plate, the mounting base plate is arranged between the two screw rods, and the drive source and the screw rod are driven by gears

Through the reciprocating motion of the air cylinder, the driving source is moved to the gear coupling, thereby driving the screw rod.

Preferably, a bracket is also included, and the bracket is used for connecting the 3D printer to form a whole.

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

The present invention provides a molding 3D printer. The vertical driving component drives the molding platform to reciprocate in the vertical direction of the printing head, and the horizontal driving part drives the printing head to move in the horizontal direction, so that the printing head shapes the workpiece on the molding platform. It is convenient for rapid prototyping of workpieces, and the invention has reliable structure and convenient use.

The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, and implement it according to the content of the description, the preferred embodiments of the present invention are described in detail below with the accompanying drawings. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a schematic diagram 1 of a three-dimensional structure in an embodiment of the present invention;

Fig. 2 is the partial enlarged schematic diagram of Fig. 1;

3 is a second schematic diagram of a three-dimensional structure in an embodiment of the present invention;

4 is a front view of an embodiment of the present invention;

Fig. 5 is the partial enlarged schematic diagram of Fig. 4;

6 is a schematic diagram 1 of the three-dimensional structure of the molding drive mechanism according to an embodiment of the present invention;

Fig. 7 is the partial enlarged schematic diagram of Fig. 6;

FIG. 8 is a schematic diagram 2 of the three-dimensional structure of the molding drive mechanism according to an embodiment of the present invention;

9 is a schematic three-dimensional structural diagram of a vertical printing assembly in an embodiment of the present invention;

10 is a schematic three-dimensional structure diagram of a clamping module according to an embodiment of the present invention;

11 is a schematic three-dimensional structure diagram of a forming platform in an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of an adjustment module on a forming platform according to an embodiment of the present invention.

Shown in the picture:

1. Forming drive mechanism; 11. Vertical printing assembly; 111, Print head; 112, Slide rod; 113, Vertical drive module; 114, Screw rod; 115, Nut seat; 116, Fixed seat; ; 121, beam; 122, transmission module; 123, position sensor; 124, connecting block; 13, second drive assembly; 132, drive motor; 133, belt transmission module; 134, clamping module; 1341, finger Cylinder; 1342, clamping block; 135, transmission rod; 2, carrying mechanism; 21, forming platform; 211, receiving plate; 212, adjusting module; 2121, guide chute; 2122, adjusting rod; 2123, first wedge block; 2124, second wedge; 213, connecting part; 214, nut seat; 215, guide module; 22, vertical drive assembly; 221, drive source; 222, gear; 223, timing pulley; 225, lead screw ; 23, alternate components; 231, cylinder; 232, mounting substrate; 3, bracket.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings, and the foregoing and other objects, features, aspects and advantages of the present invention will become more apparent, so that those skilled in the art can implement them with reference to the description. In the drawings, the shapes and dimensions may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to refer to the same or like parts. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, "depth" corresponds to the dimension from front to back, and "closed" refers to the convenient passage of the carrier and the operator Can't pass, "ring" is equivalent to a loop shape. These relative terms are for convenience of description and are generally not intended to require a specific orientation. Terms referring to attachment, coupling, etc. (eg, "connected" and "attached") refer to the fixed or attached relationship, as well as the movable or rigid attachment or relationship of these structures to each other, directly or indirectly, through intervening structures, unless The other way is explicitly stated.

The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, on the premise of no conflict, the embodiments or technical features described below can be combined arbitrarily to form new embodiments. .

As shown in FIGS. 1-4 , a 3D printer includes a forming driving mechanism 1 and a carrying mechanism 2 , wherein the forming driving mechanism 1 is provided with a vertical printing assembly 11 with a built-in formed printing head 111 and a driving mechanism for driving the printing head 111 . Horizontal drive part;

The carrying mechanism 2 is used to hold the forming workpiece, and the carrying mechanism 2 includes a forming platform 21 and a vertical drive assembly 22;

The vertical printing assembly 11 is driven to move in the horizontal direction by the horizontal driving part, and the position of the printing head 111 relative to the forming platform 21 is adjusted to facilitate the printing head 11 to form the product; wherein,

The print head 111 is used to form the product layer by layer; at the same time, in order to facilitate the layer by layer forming of the print head 111, in a specific embodiment, the vertical printing assembly 11 includes a vertical drive module 113, so as to drive the print head through the vertical drive module 113 111 moves in the vertical direction, so that the distance between the print head 111 and the forming platform 21 in the vertical direction is adjusted.

At the same time, the forming platform 21 is pushed by the vertical driving assembly 22, thereby adjusting the distance between the print head 111 and the forming platform 21. Specifically, the vertical driving device includes the vertical driving assembly 22, and the forming platform 21 is driven in the horizontal direction by the vertical driving assembly 22. move up, so that both the print head 111 and the forming platform 21 can move in the vertical direction; as shown in FIG. 5 , the vertical drive assembly 22 includes a drive source 221, a screw 225, and a nut seat 214 is installed on the connecting portion 213 ; The screw rod 225 is threadedly connected with the nut seat 214, so that the driving source 221 drives the screw rod 225, thereby making the forming platform 21 move.

The lead screw 225 is used to drive the forming platform 21. Because of the high precision of the lead screw 225, it is convenient to pause, so that the product printed on the forming platform 21 has high precision. At the same time, as shown in FIG. 9, the vertical drive module 113 drives the lead bar 114. , a nut seat 115 is installed on the fixing plate 116, the vertical drive module 113 is fixed with the print head 111, and is threadedly connected with the nut seat 115 through the screw rod 114, and the vertical drive module 113 drives the screw rod 114, so that the print head 111 is in the vertical direction move.

Further, the number of the screw rods 225 is two, and the screw rods 225 are arranged on both sides of the connecting portion 213; because the size of the forming platform 21 is relatively large, and the products are placed on the top, therefore, the weight on the forming platform 21 is relatively high. The forming platform 21 is simultaneously driven by the two screw rods 225 on both sides, which facilitates applying force from both sides and reduces the torque on one side, thereby ensuring the service life of the screw rods 225 .

The vertical drive assembly 22 also includes a timing pulley 223, which is driven by the driving source 221 to rotate, and then the timing pulley 223 drives the two screw rods 225 to move, and a driving source 221 is used to drive the two screw rods 225. , simplifies the equipment, and at the same time, facilitates synchronous control and simplifies the control logic.

Further, the number of the driving sources 221 is two, and the carrying mechanism 2 further includes an alternate assembly 23 including a mounting substrate 232 for holding the two driving sources 221 and a driving part for driving the mounting substrate 232 to move; the driving source 221 and the lead screw 225 through gear 222 transmission;

At present, in terms of 3D forming technology, the printing head 111 continuously ejects materials to form part of the structure, which makes the forming platform 21 need to ensure that it works normally during the forming process. The mechanism is easily damaged due to long-term use, and the entire molding process will be forced to stop working. Since the molding materials are often shaped by hot melting, when the equipment fails, the equipment needs to be suspended for maintenance. At this time, the temperature of the formed semi-product is If the semi-finished workpiece is re-processed, it needs to be repositioned to the position where it was interrupted, and it is easy to offset at the interface. At the same time, the molten material is spliced to the solidified semi-finished product, which is easy to make the shape of the interface. Therefore, the semi-finished products formed when the equipment fails are often scrapped, wasting materials and increasing costs.

In order to solve the above problems, the alternation assembly 23 is used to drive the mounting base plate 232 through the driving part to make a driving source 221 move to be coupled with the corresponding transmission module, so that the two driving sources 221 alternately drive the screw 225 to move; the timing pulley 223 passes through the belt Linkage, so that any driving source 221 is coupled with a transmission module to move, the belt drives the other transmission module to move, and then a driving source 221 is used to drive the two screw rods 225 at the same time, so that the other driving source 221 is in a standby state, When the drive source 221 that drives the movement fails, another drive source 221 can quickly replace the failed drive source 221, thereby reducing the time for suspending work due to the failure. At the same time, only the drive source 221 is replaced, other The position has not changed, so the work can be continued directly, so that the semi-finished product can continue to be formed; after the whole product is formed, maintenance is carried out, so that the semi-finished product can be used rationally and costs can be saved.

In a preferred embodiment, the driving part includes an air cylinder 231, and the air cylinder 231 is fixed on the base surface; the driving source 221 is fixed on both sides of the installation base plate 232, and the installation base plate 232 is arranged between the two screw rods 225, through the reciprocation of the air cylinder 231. move, so that the gear 22 on the driving source 221 is coupled with the gear 225 on the corresponding screw rod 225. Specifically, the number of teeth of the gear 222 installed on the driving source 221 is smaller than the number of teeth of the gear 222 connected to the screw rod 225, thereby reducing the driving source. The rotational speed output by 221, thereby increasing the output torque, makes the movement of the lead screw 225 more stable.

In the existing 3D printing equipment, in order to improve the accuracy of the processing project, the lead screw is generally used for transmission, which is convenient to achieve accurate positioning of the fixed position. For large products, in the 3D molding process, the print head 111 needs to be Layer-by-layer molding can only be achieved by moving a larger distance, and generally speaking, the larger the size of the lead screw, the more difficult the height will be, making it more expensive. Reducing the lead screw can effectively reduce the cost.

By using two screw rods to drive the print head 111 and the forming platform 21 to move in the vertical direction, the movement stroke of a single screw rod is reduced, thereby reducing a single screw rod and reducing the cost of the printer.

The 3D printer further includes a bracket 3, and the bracket 3 is used to form a fixed base of the forming driving mechanism 1 and the carrying mechanism 2, so that the 3D printer is connected to form a whole, which is convenient for stable forming work;

A guide module 215 for guiding the movement direction of the forming platform 21 is installed on the bracket 3 , and the movement trajectory of the forming platform 21 is limited by the guide module 215 and the vertical drive assembly 22 together.

As shown in Figures 6-8, the horizontal drive assembly is used to drive the vertical printing assembly 11 to move in the direction of the horizontal plane; wherein, the horizontal drive assembly is driven by a belt to make the vertical print assembly 11 move, and a position sensor 123 is arranged in the horizontal drive assembly , the position sensor 123 is fixedly installed on the belt, and the clamping module 13 is arranged at a position close to the driving source in the horizontal drive assembly. The clamping ends of the clamping module 13 are arranged on both sides of the belt. When the clamping module 13 During operation, the clamping end of the clamping module 13 clamps the belt, thereby restricting the movement of the belt;

The position sensor 123 is used to detect the position distance relationship of the vertical printing assembly 11 in the horizontal direction; the clamping module 134 is controlled by the position sensor 123, so that the clamping module 134 clamps the belt, thereby restricting the movement of the vertical printing assembly 11 along the horizontal direction, so as to In the above-mentioned manner, oscillation is avoided when the belt is suspended, so as to ensure the precise positioning of the vertical printing assembly 11 .

In a preferred embodiment, the horizontal drive assembly includes a first drive assembly 12 and a second drive assembly 13, the second drive assembly 13 drives the first drive assembly 12 to move, and the first drive assembly 12 drives the vertical print assembly 11 to move;

By setting the driving direction of the second driving assembly 13 and the driving direction of the first driving assembly 12 to be perpendicular to each other, the movement of the printing assembly 11 along the horizontal plane direction is made vertical.

The second drive assembly 13 includes a bracket 3 for fixing the second drive assembly 13; the first drive assembly 12 includes a beam 121, the beam 121 is overlapped between the brackets 3, and the bracket 3 is provided with a guide module for guiding the movement of the beam 121. The belt drives the beam 121 to move along the direction defined by the guide module.

In order to facilitate the accurate fixation of the print head 111 at the required position, the screw drive is generally used; while the general belt drive, chain drive and other transmission mechanisms have oscillations in the transmission process, so that the belt drive, chain drive and other transmission mechanisms have oscillations. The transmission mechanism is not easy to be precisely positioned like a screw drive, and it is not widely used in printing equipment; the screw is a common transmission device in precision 3D printing equipment due to its high precision, but the high-precision screw is not widely used. The short service life and high price make the manufacturing cost of 3D printing equipment high and the price difficult to drop, which makes it difficult for 3D printing equipment to be popularized in daily production.

Specifically, the first drive assembly 12 and the second drive assembly 13 include a drive motor 132, respectively, and the belts in the first drive assembly 12 and the second drive assembly 13 are driven by the drive motors 132, so as to make the belt move.

The second drive assembly 13 further includes a belt transmission module 133 used as a belt transmission structure and a drive motor 132 for driving the belt transmission module 133; further, the belt transmission module 133 includes two pulleys, and the two pulleys pass through the two pulleys The belt is tensioned, and the drive motor 132 drives the pulley to rotate, and then uses the friction between the pulley and the belt to drive the belt to move.

As shown in FIG. 10 , the clamping module 134 includes a finger cylinder 1341 and a clamping block 1342. The clamping block 1342 is installed at the movable end of the finger cylinder 1341; Block 1342 clamps the belt, thereby limiting belt drive.

Further, the clamping block 1342 is provided with toothed protrusions and/or grooves corresponding to the toothed protrusions, so that when the clamping blocks 1342 are closed, the toothed protrusions and the grooves are engaged with each other, thereby increasing the The frictional force of the clamping block 1342 on the belt is convenient to limit the movement of the belt.

The drive motor 132 is installed on one side of the support frame 131, and the belt transmission modules 133 installed on the two support frames 131 are connected by a transmission rod 135; the second drive assembly 13 is driven by the two belt transmission modules 133, and the transmission rod 135 is used. The driving motor 132 drives the two belt transmission modules 133 to move. , so that the movement of the second drive assembly 13 is more stable. At the same time, because the transmission rod 135 connects the two belt transmission modules 133, the two belt transmission modules 133 are driven synchronously by a driving motor 132, which simplifies the control logic and facilitates synchronous movement.

As shown in FIG. 9 , the vertical printing assembly 11 includes a fixing plate 116 for fixing, and the fixing plate 116 is mounted on the belt, so that the vertical printing assembly 11 moves with the horizontal driving assembly;

A sliding rod 112 is installed between the fixing plate 116 and the vertical driving module 113 . The sliding rod 112 slides in the vertical direction, and the sliding rod 112 guides the moving direction of the print head 111 .

The 3D printer also includes a bracket 3 for supporting the vertical printing component 11, the horizontal driving component, and the forming platform 21, so that the vertical printing component 11, the horizontal driving component, and the forming platform 21 can be easily fixed on the bracket 3, thereby forming the main body of the 3D printer. work structure.

In a preferred embodiment, the bracket is formed by splicing channel steel; wherein, the position sensor 123 includes a grating sensor, and the grating scale of the grating sensor is installed on the beam 121 and the support frame 131, and the beam 121 and the support frame 131 are made of channel steel, The sensing end of the grating sensor is installed on the belt, so that the sensing end of the grating sensor corresponds to the grating ruler, so as to detect the position.

As shown in FIGS. 11 and 12 , the forming platform 21 includes a receiving plate 211 for receiving materials and an adjusting module 212 for adjusting the position of the receiving plate 211 . The adjusting module 212 is connected to the receiving plate 211 . By adjusting the adjusting module 212 The height in the vertical direction, so as to adjust the levelness of the receiving plate 211;

The number of adjustment modules 212 is not less than three, and the adjustment modules 212 are distributed and arranged at the position of the connecting portion 213 near the edge, so as to facilitate different adjustment modules 212 to adjust different positions on the receiving plate 211, so as to adjust the receiving plate The purpose of the horizontal direction of 211, in a preferred embodiment, the number of adjustment modules 212 is four, the adjustment modules 212 are arranged on the four corners of the receiving plate 211, and the adjustment modules 212 are adjusted respectively to adjust the receiving the levelness of the board 211;

The vertical drive assembly 22 is used to drive the forming platform 21 to move in the direction of the vertical horizontal plane. Since the external forming assembly forms the product layer by layer on the forming platform 21, the product is gradually formed from the surface of the forming platform 21 along the vertical direction. In order to facilitate the layer-by-layer forming , the forming platform 21 is driven to move in the vertical direction by the vertical drive assembly 22;

Further, the adjustment module 212 includes an adjustment rod 2122 and a wedge block, and the position of the wedge block is adjusted by the adjustment rod 2122, thereby driving the movement of the receiving plate 211 in the direction of the vertical horizontal plane, thereby adjusting the horizontality of the receiving plate 211; The block includes a first wedge 2123 and a second wedge 2124. The inclined surfaces of the first wedge 2123 and the second wedge 2124 fit together. The plate 211 is displaced in the vertical direction; the adjusting rod 2122 drives the second wedge 2124 to move in the horizontal direction, the first wedge 2123 is mounted on the receiving plate 211, and the second wedge 2124 is driven to move by the adjusting rod 2122 to make the first wedge 2123 move. The contact position between the wedge block 2123 and the second wedge block 2124 is changed, so that the position of the receiving plate 211 in the vertical direction is changed, so as to realize the function of adjusting the horizontality of the receiving plate 211 .

Further, the adjustment module 212 further includes a guide chute 2121, and the adjustment rod 2122 drives the second wedge 2124, so that the second wedge 2124 slides along the direction of the guide chute 2121, and the guide chute 2121 limits the movement of the second wedge 2124. Movement direction so that the second wedge 2124 pushes the first wedge 2123 precisely.

A guide is provided on the inclined surface where the first wedge 2123 and the second wedge 2124 fit, and the guide is guided to make the second wedge 2124 move in the direction of the slope relative to the first wedge 2123, so as to ensure that the first wedge 2123 and the The second wedge block 2124 is kept in a fitted state; specifically, the guide member includes a slider installed on the second wedge block 2124 and a slide rail provided on the first wedge block 2123, and the slider is slidably connected to the slide rail, so that the first wedge block 2124 is slidably connected to the slide rail. The second wedge 2124 moves relative to the first wedge 2123 .

In a preferred embodiment, the forming platform 21 further includes a connecting portion 213, the connecting portion 213 is used to support the adjusting module 212, the connecting portion 213 serves as a receiving structure of the forming platform 21, and the adjusting module 212 is arranged on the connecting portion 213 and the receiving structure. between the plates 211, so that the forming platform 21 forms a stable overall structure;

The connecting portion 213 is driven by the vertical drive assembly 22, thereby driving the receiving plate 211, so that the forming platform 21 moves in the vertical direction as a whole, which facilitates the forming platform 21 to approach or move away from the 3D printing head to meet the needs of layer-by-layer printing.

The 3D printer provided by the present invention should also have a control device, a power supply device, a corresponding action mechanism should have a corresponding power mechanism, etc., and a general assembly box, etc., to facilitate the position sensor 123 to the power mechanism and the clamping module 134. The beneficial effects produced by the control will not be repeated.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form; any person of ordinary skill in the industry can smoothly implement the present invention as shown in the accompanying drawings and above; however, any Those skilled in the art, without departing from the scope of the technical solution of the present invention, make use of the above-disclosed technical content to make some changes, modifications and equivalent changes of evolution are equivalent embodiments of the present invention; at the same time, Any alteration, modification and evolution of any equivalent changes made to the above embodiments according to the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. A molding 3D printer, comprising:

a molding drive mechanism (1) on which a print head (111) for molding and a horizontal drive section that drives the print head (111) are provided;

the bearing mechanism (2) is used for bearing a formed workpiece;

the bearing mechanism (2) comprises a forming platform (21) and a vertical driving assembly (22);

the vertical driving component (22) drives the forming platform (21) to reciprocate towards the vertical direction of the printing head (111) and the horizontal driving part drives the printing head (111) to move in the horizontal plane direction, so that the printing head (111) forms a workpiece on the forming platform (21).

2. The profiled 3D printer according to claim 1, characterized in that the profiling drive mechanism (1) comprises a vertical drive module (113), the print head (111) being driven by the vertical drive module (113) to move in the direction of movement of the profiling platform (21) such that the print head (111) and the profiling platform (21) move in opposite directions.

3. The profiled 3D printer according to claim 1, characterized in that the horizontal drive comprises a first drive assembly (12) and a second drive assembly (13), the second drive assembly (13) driving the first drive assembly (12) in movement, the first drive assembly (12) driving the print head (111) in movement;

movement of the print head (111) in a horizontal plane direction is caused by arranging the driving direction of the second driving assembly (13) and the driving direction of the first driving assembly (12) to be perpendicular to each other.

4. The profiled 3D printer according to claim 3, characterized in that the first drive assembly (12), the second drive assembly (13) are belt-driven;

the horizontal driving part includes a position sensor (123), the position sensor (123) is installed on the transport belt, and a position in a horizontal direction of a position of the printing head (111) is detected by the position sensor (123) to define the printing head (111) at a fixed position.

5. The profiled 3D printer as claimed in claim 4, characterized in that the horizontal drive further comprises a clamping module (134), by means of which clamping module (134) the transport belt is clamped to limit its movement, so that the print head (111) is defined at a fixed position.

6. The profiled 3D printer as claimed in any one of claims 1 to 5, characterized in that the vertical drive assembly (22) comprises a drive source (221), a lead screw (225), the profiled platform (21) having a nut seat (214) mounted thereon;

the screw rod (225) is in threaded connection with the nut seat (214), so that the driving source (221) drives the screw rod (225) to drive the forming platform (21) to move.

7. The profiled 3D printer as claimed in claim 6, characterized in that the number of the screws (225) is two, the screws (225) being arranged on both sides of the connecting portion (213);

the vertical driving assembly (22) further comprises a synchronous belt pulley (223), the driving source (221) drives the synchronous belt pulley (223) to rotate, and then the synchronous belt pulley (223) drives the two screw rods (225) to move.

8. The profiled 3D printer as claimed in claim 7, characterized in that the number of drive sources (221) is two; the bearing mechanism (2) further comprises an alternating assembly (23), wherein the alternating assembly (23) comprises a mounting substrate (232) for bearing the two driving sources (221) and a driving part for driving the mounting substrate (232) to move;

one of the driving sources (221) drives the screw rod (225) to move, and the mounting substrate (232) is driven to move by the driving part, so that the two driving sources (221) alternately drive the screw rod (225) to move.

9. The contoured 3D printer of claim 8, wherein the drive portion includes an air cylinder (231), the air cylinder (231) being secured to the base;

the driving source (221) is fixed on two sides of the mounting substrate (232), the mounting substrate (232) is arranged between the two screw rods (225), and the driving source (221) and the screw rods (225) are in transmission through a gear (222)

The driving source (221) is moved to the gear (222) by the reciprocating motion of the cylinder (231) to be coupled, and then the screw rod (225) is driven.

10. The profiled 3D printer as claimed in claim 6, further comprising a bracket (3), the bracket (3) being used to connect the 3D printer as a whole.

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