CN209888151U - Photocuring 3D printing apparatus - Google Patents

Abstract

The utility model relates to a photocuring 3D printing apparatus, this printing apparatus include actuating mechanism, objective table, the printing apparatus of bottom printing opacity material pond and first ray apparatus and second ray apparatus, first ray apparatus with the second ray apparatus sets up the below of material pond, the bottom formation of material pond corresponds respectively the first photocuring district of first ray apparatus and corresponding the second photocuring district of second ray apparatus, the movably setting of objective table is in the top of material pond, actuating mechanism is used for the drive respectively the objective table is kept away from the material pond removes and is in first photocuring district with reciprocating motion between the second photocuring district. The object stage of the printing device provided by the disclosure can directly execute the printing operation of the next layer after moving between the first light curing area and the second light curing area, thereby improving the printing speed and the productivity. In addition, because resin flow filling is not required to be waited, the defects of material shortage, faults and the like of a printed product are overcome, and the printing range is wide.

Description

Photocuring 3D printing apparatus

Technical Field

The utility model relates to a 3D prints the field, specifically relates to a photocuring 3D printing apparatus.

Background

In the existing rapid continuous photocuring 3D printing technology, an optical machine is generally adopted, the optical machine continuously cures raw materials such as photosensitive resin and the like, and simultaneously an object stage is continuously lifted upwards. Therefore, the rapid continuous photocuring 3D printing can only print products with grid structures or products with small cross section areas, and the range of printed products is narrow.

In addition, although the existing traditional photocuring technology can print objects with large sections, the printing speed is very slow. The printing process needs to go through the processes of curing one layer, lifting a larger distance on the objective table, waiting for resin filling, descending the objective table, repositioning and curing the next layer, and because the time for lifting the larger distance on the objective table, waiting for resin filling, descending the objective table and repositioning is increased, the printing efficiency is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a photocuring 3D printing apparatus, this photocuring 3D printing apparatus printing speed is fast, and the printing range is wide.

In order to achieve the above object, the present disclosure provides a photocuring 3D printing apparatus, including actuating mechanism, objective table, the printing opacity of bottom material pond and first ray apparatus and second ray apparatus, first ray apparatus with the second ray apparatus sets up the below of material pond, the bottom formation of material pond corresponds respectively the first photocuring district of first ray apparatus and the second photocuring district that corresponds the second ray apparatus, the objective table is movably set up the top of material pond, actuating mechanism is used for driving respectively the objective table is kept away from the material pond removes and is in first photocuring district with reciprocating motion between the second photocuring district.

Optionally, the object stage is movably disposed above the material pool through the driving mechanism, a bottom of the object stage is formed into a forming surface for fixing a printed product, and the object stage has a connecting end for connecting with the driving mechanism.

Optionally, the driving mechanism includes a driving device and a transmission device, the transmission device includes a horizontal transmission device and a vertical transmission device, the object stage is movably connected to the vertical transmission device, the vertical transmission device is movably disposed on the horizontal transmission device, and the driving device includes a first driving device for driving the object stage to move along the horizontal transmission device so as to perform the reciprocating motion, and a second driving device for driving the object stage to move along the vertical transmission device so as to move away from the material pool.

Optionally, the first driving device includes a first motor, the second driving device includes a second motor, and the horizontal transmission device and the vertical transmission device are respectively nut-and-screw mechanisms.

Optionally, the horizontal transmission device includes a horizontal substrate and a horizontal screw, the vertical transmission device includes a vertical substrate and a vertical screw, the horizontal screw is rotatably supported on the horizontal substrate, and the output end of the first motor is connected to one end of the horizontal screw, the horizontal screw is sleeved with the vertical substrate, the vertical substrate is provided with a first nut mechanism matched with the horizontal screw, two ends of the vertical screw are rotatably supported on the vertical substrate, the output end of the second motor is connected to one end of the vertical screw, the vertical screw is connected to the stage, and a second nut mechanism matched with the vertical screw is arranged on the stage.

Optionally, the horizontal base plate includes a first main plate, a first side plate and a second side plate, the first side plate and the second side plate are fixed at two ends of the first main plate respectively, two ends of the horizontal lead screw are rotatably connected with the first side plate and the second side plate respectively, the vertical base plate includes a second main plate, a top plate and a bottom plate, the top plate and the bottom plate are fixed at two ends of the second main plate respectively, and two ends of the vertical lead screw are connected with the top plate and the bottom plate respectively.

Optionally, a first guide rail extending in the horizontal direction is formed on the first main board, a first slider used for being connected with the first guide rail in a matched manner is formed on the second main board, a second guide rail extending in the vertical direction is further formed on the second main board, and the stage moves up and down along the second guide rail.

Optionally, the printing apparatus further includes a support, a end of the support is sleeved on the vertical screw, the other end of the support is fixedly connected with the top of the objective table, and a second slider is further formed on the support and is used for being connected with the second guide rail in a matching manner.

Optionally, the printing apparatus further includes a workbench, the first optical machine and the second optical machine are disposed below the workbench, an opening for installing the material tank is formed on the workbench, the material tank is fixed above the workbench, and the bottom of the material tank penetrates through the opening and is arranged opposite to the first optical machine and the second optical machine.

Optionally, the printing apparatus further comprises a housing disposed below the platen around the first light machine and the second light machine.

Through above-mentioned technical scheme, this photocuring 3D printing apparatus that this disclosure provided need not to wait for raw materials such as resin to fill when printing, and the objective table can directly carry out the printing operation of next layer after removing between first photocuring district and second photocuring district, consequently to a great extent has improved printing speed to productivity ratio has been improved. In addition, when the objective table moves between the first light curing area and the second light curing area in a reciprocating mode, resin does not need to wait for flowing filling, the printing speed is improved, the problem that large-area cross sections existing in the related technology are difficult to fill can be solved, the defects of material shortage, faults and the like of printed products are overcome, the objective table is suitable for products of all cross section types, and the range of the printed products is expanded.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic structural diagram of a photocuring 3D printing apparatus provided by an exemplary embodiment of the present disclosure, wherein a stage is located in a first photocuring region;

fig. 2 is a schematic structural diagram of a photocuring 3D printing apparatus provided in an exemplary embodiment of the present disclosure, wherein a stage is located in a second photocuring region.

Description of the reference numerals

1 objective table 2 material pool

3 first optical machine 4 second optical machine

5 horizontal transmission device 51 horizontal base plate

511 first main board 512 first side board

513 second side plate 514 first guide rail

52 horizontal lead screw 53 limiting block

6 vertical transmission 61 vertical base plate

611 second main plate 612 top plate

613 bottom plate 614 first slide block

615 vertical lead screw of second guide rail 62

63 second nut mechanism 7 support

71 second slide 8 table

9 outer cover

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present disclosure, and do not indicate or imply that the designated devices or elements must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure. Furthermore, terms such as "first," "second," and the like, are used herein to distinguish one element from another, and are not necessarily sequential or significant.

In the related art, the inventor of the present application finds that when a photo-curing 3D printer is used to print a product, a photosensitive material such as resin is usually selected as a printing raw material, and such a raw material has a relatively high viscosity and relatively poor fluidity, so that after an object stage moves upward from a material pool one layer high at a time, the raw material such as resin is difficult to fill a gap between a cured layer and the bottom of the material pool quickly, resulting in a relatively slow printing speed.

Therefore, as shown in fig. 1 to 2, the present disclosure provides a photocuring 3D printing apparatus, including a driving mechanism, an object stage 1, a material pool 2 with a transparent bottom, and a first optical machine 3 and a second optical machine 4, the first optical machine 3 and the second optical machine 4 are disposed below the material pool 2, a first photocuring area corresponding to the first optical machine 3 and a second photocuring area corresponding to the second optical machine 4 are formed at the bottom of the material pool 2, the object stage 1 is movably disposed above the material pool 2, and the driving mechanism is used for driving the object stage 1 to move away from the material pool 2 and reciprocate between the first photocuring area and the second photocuring area.

According to the structure, when a product is printed, the objective table 1 can be positioned in the first photocuring area, the first optical machine 3 is started, light is generated according to the cross-sectional shape of the printed product, the light emitted from the first optical machine 3 penetrates through the bottom of the material pool 2, so that raw materials such as resin and the like between the objective table 1 and the bottom of the material pool 2 are cured, and then a layer of product is printed; then after the driving mechanism drives the object stage 1 to move a layer height distance away from the material pool 2, the object stage 1 is driven to move from the first light curing area (as shown in fig. 1) to the second light curing area (as shown in fig. 2), at this time, the second light machine 4 is started to cure the next layer of resin and other raw materials, after printing is completed, the object stage 1 is driven to return to the first light curing area to repeatedly execute the process, so that the object stage 1 gradually moves away from the material pool 2 and reciprocates between the first light curing area and the second light curing area.

Through the scheme, the photocuring 3D printing apparatus provided by the disclosure does not need to wait for filling of raw materials such as resin during printing, and the object stage 1 can directly execute the printing operation of the next layer after moving between the first photocuring area and the second photocuring area, so that the printing speed is greatly improved, and the production efficiency is improved. In addition, when the objective table moves between the first light curing area and the second light curing area in a reciprocating mode, resin does not need to wait for flowing filling, the printing speed is improved, the problem that large-area cross sections existing in the related technology are difficult to fill can be solved, the defects of material shortage, faults and the like of printed products are overcome, the objective table is suitable for products of all cross section types, and the range of the printed products is expanded.

It should be further noted that the first optical machine 3 and the second optical machine 4 may be disposed side by side below the material pool 2, and in the process of the horizontal reciprocating motion of the object stage 1, the distance between the two light outlets is reduced as much as possible under the condition that the raw materials such as resin can be fully filled, so that the distance between the first light curing area and the second light curing area is also small to meet the requirement of fast printing.

In the specific embodiment provided by the present disclosure, as shown in fig. 1, the stage 1 is movably disposed above the material pool 2 by a driving mechanism, the bottom of the stage 1 is formed as a molding surface for fixing a printed product, and the stage 1 has a connection end for connecting with the driving mechanism. Wherein, the height of objective table 1 can be greater than the height of stock pool 2 frame, and when the bottom of objective table 1 was close to the bottom of the pool, its top still can stretch out in the upper edge of stock pool 2's frame, and like this, on the one hand is in order to prevent that the whole back of submerging of objective table 1 in raw materials such as resin, and its top is taken out the resin raw materials and is caused the waste during upward movement, and on the other hand can set up the link of objective table 1 at the top of objective table 1, prevents that the frame of stock pool 2 from causing the interference to the motion of objective table 1.

Specifically, the driving mechanism may include a driving device and a transmission device, the transmission device includes a horizontal transmission device 5 and a vertical transmission device 6, the object stage 1 is movably connected to the vertical transmission device 6, the vertical transmission device 6 is movably disposed on the horizontal transmission device 5, and the driving device includes a first driving device (not shown) for driving the object stage 1 to move along the horizontal transmission device 5 to perform a reciprocating motion, and a second driving device (not shown) for driving the object stage 1 to move along the vertical transmission device 6 to move away from the material pool 2. Alternatively, in other embodiments of the present disclosure, the object stage 1 may be movably mounted on the horizontal transmission device 5, and the horizontal transmission device 5 may be movably mounted on the vertical transmission device 6, which is not limited by the present disclosure.

As an alternative embodiment, the first driving device may include a first motor, the second driving device may include a second motor, and the horizontal transmission device 5 and the vertical transmission device 6 are each a nut screw mechanism. The first motor can be arranged near the horizontal transmission device 5, an output shaft of the first motor can be connected with a lead screw in the horizontal transmission device 5, and the horizontal transmission device 5 is driven by the first motor to drive the objective table 1 to reciprocate between the first light curing area and the second light curing area; the second motor can be installed near vertical transmission 6 to the output shaft of second motor can link to each other with the lead screw in vertical transmission 6, drives vertical transmission 6 through the second motor and drives objective table 1 and keep away from the stock bath 2 and remove.

In addition, a speed reducer can be arranged between the first motor and the horizontal transmission device 5 to reduce the speed of the horizontal movement of the object stage 1; similarly, a speed reducer may be provided between the second motor and the vertical transmission 6 to reduce the speed of the vertical movement of the stage 1, which makes it easier to control the accuracy of the movement of the stage 1.

Specifically, the horizontal transmission device 5 includes a horizontal base plate 51 and a horizontal lead screw 52, the vertical transmission device 6 includes a vertical base plate 61 and a vertical lead screw 62, the horizontal lead screw 52 is rotatably supported on the horizontal base plate 51, and an output end of a first motor can be connected with one end of the horizontal lead screw 52, the horizontal lead screw 52 is sleeved with the vertical base plate 61, a first nut mechanism (not shown in the figure) matched with the horizontal lead screw 52 is arranged on the vertical base plate 61, two ends of the vertical lead screw 62 are rotatably supported on the vertical base plate 61, an output end of a second motor is connected with one end of the vertical lead screw 62, the vertical lead screw 62 is connected with the objective table 1, and a second nut mechanism 63 matched with the vertical lead screw 62 is arranged on the objective table 1. In this way, the forward rotation and the reverse rotation of the first motor can drive the horizontal lead screw 52 to correspondingly rotate, so as to drive the first nut mechanism to reciprocate along the horizontal direction, and further drive the vertical substrate 61 to move along the horizontal direction, so as to drive the objective table 1 to reciprocate along the horizontal direction; the second motor can drive the vertical screw 62 to rotate, so as to drive the second nut mechanism 63 to move along the vertical direction, so as to realize that the object stage 1 moves away from or close to the material pool 2.

Here, it should be noted that the first nut mechanism and the second nut mechanism 63 may be separate nut assemblies, the first nut mechanism may be fixed on the vertical substrate 61 or fixed inside the vertical substrate 61 by welding, clamping, or the like, and the second nut mechanism 63 may also be fixed on the stage 1 or fixed inside the stage by welding, clamping, or the like. In other embodiments of the present disclosure, the first nut mechanism may be a part of the vertical substrate 61, that is, the first nut mechanism may be a through hole having an internal thread formed on the vertical substrate 61, or the second nut mechanism 63 may be a through hole having an internal thread formed on the stage 1, which is not limited by the present disclosure.

Further, the horizontal base plate 51 comprises a first main plate 511, a first side plate 512 and a second side plate 513, the first side plate 512 and the second side plate 513 are respectively fixed at two ends of the first main plate 511, and two ends of the horizontal screw 52 are respectively rotatably connected with the first side plate 512 and the second side plate 513, so that the vertical base plate 61 can reciprocate between the first side plate 512 and the second side plate 513; the vertical base plate 61 includes a second main plate 611, a top plate 612 and a bottom plate 613, the top plate 612 and the bottom plate 613 are respectively fixed to both ends of the second main plate 611, and both ends of the vertical screw 62 are respectively connected to the top plate 612 and the bottom plate 613, so that the stage 1 can move between the top plate 612 and the bottom plate 613. In addition, the horizontal lead screw 52 and the vertical lead screw 62 may be respectively provided with a limiting block 53, and the limiting block 53 may limit the moving range of the nut mechanism, so as to prevent the nut mechanism from impacting the side plate or the top plate 612 and the bottom plate 613 during the moving process, thereby improving the service life of the device.

Further, in order to improve the accuracy of the movement of the vertical substrate 61 on the horizontal lead screw 52, the first main plate 511 may be formed with a first guide rail 514 extending in the horizontal direction, and the second main plate 611 is formed with a first slider 614 for matching connection with the first guide rail 514, so that the vertical vibration of the vertical substrate 61 during the movement process can be reduced and the vertical substrate 61 is restricted from being displaced in the vertical direction by the matching of the first slider 614 and the first guide rail 514, thereby improving the accuracy of the horizontal movement.

Similarly, a second guide rail 615 extending in the vertical direction is also formed on the second main plate 611, and a structure matching the second guide rail 615 may be formed on the stage 1, and the horizontal displacement of the stage 1 with respect to the vertical base plate 61 is limited by the second guide rail 615, so that the stage 1 can only move up and down along the second guide rail 615 to improve the moving accuracy.

As an optional implementation mode, the photocuring 3D printing apparatus provided by the present disclosure may further include a support 7, wherein one end of the support 7 is sleeved on the vertical screw 62, and the other end is fixedly connected to the connecting end at the top of the object stage 1, and the object stage 1 is driven to move by the support 7. In this way, the second nut mechanism 63 may be formed at one end of the bracket 7 and sleeved on the vertical lead screw 62, and the bracket 7 may further be formed with a second slider 71 for matching connection with the second guide rail 615. By additionally arranging the bracket 7, the structural shape of the objective table 1 can be simplified, and the processing is easy.

As an optional implementation manner, the photocuring 3D printing apparatus provided by the present disclosure may further include a workbench 8, the first optical machine 3 and the second optical machine 4 are disposed below the workbench 8, an opening for installing the material tank 2 is formed on the workbench 8, the material tank 2 is fixed above the workbench 8, and the bottom of the material tank 2 is arranged opposite to the first optical machine 3 and the second optical machine 4 through the opening.

Further, the photocuring 3D printing apparatus further includes a housing 9, and the housing 9 is disposed below the table 8 around the first optical machine 3 and the second optical machine 4. The housing 9 can prevent external light from interfering with light generated by the first optical machine 3 and the second optical machine 4 to reduce curing accuracy, and can protect the first optical machine 3 and the second optical machine 4 and improve the aesthetic property of the printing apparatus.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. The utility model provides a photocuring 3D printing apparatus, characterized in that, includes actuating mechanism, objective table (1), the printing opacity of bottom material pond (2) and first ray apparatus (3) and second ray apparatus (4), first ray apparatus (3) with second ray apparatus (4) set up the below of material pond (2), the bottom formation of material pond (2) corresponds respectively the first photocuring district of first ray apparatus (3) and the second photocuring district of corresponding second ray apparatus (4), objective table (1) movably sets up the top of material pond (2), actuating mechanism is used for driving respectively objective table (1) is kept away from material pond (2) remove and first photocuring district with reciprocating motion between the second photocuring district.

2. The photocuring 3D printing device according to claim 1, characterized in that the object stage (1) is movably arranged above the material bath (2) by means of the drive mechanism, the bottom of the object stage (1) is formed as a profiled surface for fixing a printed product, and the object stage (1) has a connection end for connection with the drive mechanism.

3. The photocuring 3D printing apparatus according to claim 1, wherein the driving mechanism comprises a driving device and a transmission device, the transmission device comprises a horizontal transmission device (5) and a vertical transmission device (6), the object stage (1) is movably connected to the vertical transmission device (6), the vertical transmission device (6) is movably arranged on the horizontal transmission device (5), and the driving device comprises a first driving device for driving the object stage (1) to move along the horizontal transmission device (5) to perform the reciprocating motion and a second driving device for driving the object stage (1) to move along the vertical transmission device (6) to move away from the material pool (2).

4. The photocuring 3D printing device according to claim 3, characterized in that the first drive means comprises a first motor, the second drive means comprises a second motor, and the horizontal transmission means (5) and the vertical transmission means (6) are each a nut-and-screw mechanism.

5. The photocuring 3D printing apparatus according to claim 4, wherein the horizontal transmission device (5) comprises a horizontal base plate (51) and a horizontal lead screw (52), the vertical transmission device (6) comprises a vertical base plate (61) and a vertical lead screw (62), the horizontal lead screw (52) is rotatably supported on the horizontal base plate (51), the output end of the first motor is connected with one end of the horizontal lead screw (52), the vertical base plate (61) is sleeved on the horizontal lead screw (52), a first nut mechanism matched with the horizontal lead screw (52) is arranged on the vertical base plate (61), two ends of the vertical lead screw (62) are rotatably supported on the vertical base plate (61), the output end of the second motor is connected with one end of the vertical lead screw (62), and the vertical lead screw (62) is connected with the objective table (1), and a second nut mechanism (63) matched with the vertical screw rod (62) is arranged on the object stage (1).

6. The photocuring 3D printing apparatus according to claim 5, wherein the horizontal base plate (51) comprises a first main plate (511), a first side plate (512) and a second side plate (513), the first side plate (512) and the second side plate (513) are respectively fixed at two ends of the first main plate (511), two ends of the horizontal lead screw (52) are respectively rotatably connected with the first side plate (512) and the second side plate (513), the vertical base plate (61) comprises a second main plate (611), a top plate (612) and a bottom plate (613), the top plate (612) and the bottom plate (613) are respectively fixed at two ends of the second main plate (611), and two ends of the vertical lead screw (62) are respectively connected with the top plate (612) and the bottom plate (613).

7. The photocuring 3D printing apparatus according to claim 6, wherein the first main plate (511) is formed with a first guide rail (514) extending in a horizontal direction, the second main plate (611) is formed with a first slider (614) for fitting connection with the first guide rail (514), the second main plate (611) is further formed with a second guide rail (615) extending in a vertical direction, and the stage (1) moves up and down along the second guide rail (615).

8. The photocuring 3D printing apparatus according to claim 7, further comprising a support (7), wherein one end of the support (7) is sleeved on the vertical screw (62), and the other end of the support is fixedly connected with the top of the object stage (1), and a second sliding block (71) for being in fit connection with the second guide rail (615) is further formed on the support (7).

9. The photocuring 3D printing apparatus according to any one of claims 1 to 8, characterized in that the printing apparatus further comprises a table (8), the first and second photomechanical machines (3, 4) being disposed below the table (8), the table (8) having formed thereon an opening in which the stock tank (2) is mounted, the stock tank (2) being fixed above the table (8), and a bottom of the stock tank (2) being disposed opposite the first and second photomachines (3, 4) through the opening.

10. The photocuring 3D printing device according to claim 9, characterized in that the printing device further comprises a housing (9), the housing (9) being arranged below the work table (8) around the first and second optoengines (3, 4).

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