A multi-workpiece typesetting structure for DLP printer

Abstract

The present invention discloses a multi-workpiece typesetting structure for a DLP printer, comprising a workbench, a projection mechanism being provided at the bottom of the workbench, a light-transmitting resin frame being provided on the upper surface of the workbench, a vertical guide rod being fixedly connected to the upper surface of the workbench, a slider being slidably connected to the guide rod, one side of the slider being fixedly connected to a support rod, a forming plate being installed on the lower surface of the support rod, and a typesetting component being provided on one side of the resin frame on the upper surface of the workbench; by arranging the typesetting component, the typesetting component is used to reasonably arrange the positions of multiple models before printing, fully utilize the space on the lower surface of the forming plate, and print as many models as possible, which is conducive to improving the printing efficiency of the printer and increasing the success rate.

Description

Technical Field

[0001] The present invention relates to the technical field of printer typesetting, in particular to a multi-workpiece typesetting structure for a DLP printer. Background Art

[0002] Digital Light Processing (DLP) is a rapid prototyping technology that uses a projector to solidify a photosensitive polymer liquid layer by layer, creating 3D printed objects. This prototyping technique begins by using slicing software to slice the model into thin slices. A projector plays a slideshow, and each layer of the image undergoes a photopolymerization reaction in a thin area of ​​the resin layer, solidifying it to form a thin layer of the part. The prototyping table then moves one layer, and the projector plays the next slideshow, processing the next layer, and this cycle continues until the print is complete.

[0003] When printing multiple parts, pay attention to the distance between them. If the models are too close together, they will stick together during printing, resulting in printing failure. If the models are too far apart, the space under the build plate will be wasted, slowing down printing efficiency. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and provide a multi-workpiece typesetting structure for a DLP printer to solve the problems raised in the background art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A multi-workpiece typesetting structure for a DLP printer includes a workbench, a projection mechanism is provided at the bottom of the workbench, a translucent resin frame is provided on the upper surface of the workbench, a vertical guide rod is fixedly connected to the upper surface of the workbench, a slider is slidably connected to the guide rod, one side of the slider is fixedly connected to a support rod, a forming plate is installed on the lower surface of the support rod, and a typesetting component is provided on the upper surface of the workbench located on one side of the resin frame.

[0007] As a preferred embodiment of the invention, the typesetting component includes a round rod, which is rotatably connected to the workbench, the outer circle of the round rod is fixedly connected to the support rod, one end of the support rod is fixedly connected to the placement plate, the placement plate is used to place the model picture, a light-emitting component is provided on one side of the placement plate, the placement plate is a transparent plate, the upper surface of the resin frame is provided with a ring-shaped laser light strip, the upper surface of the workbench is fixedly connected to the vertical plate, one side of the vertical plate is fixedly connected to the horizontal plate, one side of the horizontal plate is fixedly connected to the first motor, the main shaft of the first motor is fixedly connected to the first gear, the outer circle of the round rod is fixedly connected to the gear ring, and the gear ring is engaged with the first gear.

[0008] As a preferred embodiment of the invention, two straight lines perpendicular to each other are provided on the placement board, and the two straight lines are respectively located at the center line of the placement board. A plurality of circular positioning points are provided on the placement board, and the circular positioning points are used for the placement and positioning of the model image. The circular positioning points are arranged in an array, and a plurality of standard lines are provided on the placement board.

[0009] As a preferred embodiment of the invention, a maintenance device is provided on the outer circle of the round rod, which is used to maintain the forming plate. The maintenance device includes a fixed block, which is fixedly connected to the round rod, one side of the fixed block is fixedly connected to the support plate, and the upper surface of the support plate is fixedly connected to the collection frame. The side walls on both sides of the inner cavity of the collection frame are provided with sliding grooves, and the sliding blocks are slidably connected in the sliding grooves, and the sponge rollers are rotatably connected between the two sliding blocks.

[0010] As a preferred embodiment of the invention, one of the slide grooves passes through the collection frame, one of the sliding blocks extends out of the slide groove, one side of the sliding block is fixedly connected to the rack, one side of the collection frame is fixedly connected to the fixed plate, one side of the fixed plate is fixedly connected to the servo motor, the main shaft of the servo motor is fixedly connected to the second gear, and the second gear is meshed with the rack.

[0011] As a preferred embodiment of the invention, the support plate is fixedly connected to a square cylinder, the inner wall of the square cylinder is slidably connected to a piston, the square cylinder and the collection frame are connected to a square tube, the side wall of the square tube is rotatably connected to a first one-way rotating plate, one side of the square tube is provided with a through groove, the side wall of the through groove is rotatably connected to a second one-way rotating plate, one side of the piston is fixedly connected to a cross bar, one end of the cross bar is fixedly connected to a connecting frame, and the other end of the connecting frame is fixedly connected to a rack.

[0012] Compared with the prior art, the present invention provides a multi-workpiece typesetting structure for a DLP printer, which has the following beneficial effects:

[0013] 1. This multi-workpiece layout structure for a DLP printer sets a placement plate. A ring-shaped laser light strip shines on the transparent placement plate to form a light strip of the same size and shape as the resin frame. At this time, under the action of the light-emitting component, the placement plate emits light, and then multiple model images are placed on the placement plate. The model pattern is located inside the laser light strip, similar to viewing an X-ray film on a light-emitting plate. At this time, there will be overlap of the models in the image. At this time, the two overlapping images are adjusted so that all the models are not connected to each other and are independent, thereby fixing the position of each model. At this time, the position of each model is the position printed by the printer on the forming plate. Then, the position of each model is adjusted on the printer. By arranging the printing position of the model in advance through the image before each printing, the possibility of model adhesion is avoided, and the model is ensured to print normally.

[0014] 2. A multi-workpiece typesetting structure for a DLP printer is provided with a sponge roller. The servo motor drives the rack to move, so that the sponge roller slides across the lower surface of the forming plate to clean the lower surface of the forming plate. The lower surface of the forming plate is where the model is formed and will be contaminated with the resin liquid in the resin frame, affecting the printing of the next model. The sponge roller wipes the resin residue on the lower surface of the forming plate and drops it into the collection frame to prevent it from falling on the workbench and contaminating the workbench. At this time, the placement plate is rotated above the resin frame to cover the resin frame to prevent stains from falling into the resin frame when the sponge roller cleans the forming plate and contaminating the resin liquid.

[0015] 3. This multi-workpiece typesetting structure for a DLP printer is provided with a square tube. The rack pulls the crossbar, which pulls the piston to move. Under the action of air pressure, the second one-way rotating plate closes and the first one-way rotating plate opens, so that the square tube is connected to the collection frame. When the piston moves, suction is generated on the collection frame to collect dust and stains cleaned by the sponge roller. A filter is provided at the opening of one end of the square tube to prevent dust from entering the square tube, further reducing dust falling and avoiding contamination of the workbench.

[0016] 4. This multi-workpiece layout structure for a DLP printer, by setting a layout component, is used to reasonably arrange the positions of multiple models before printing, fully utilize the space on the lower surface of the forming plate, and print as many models as possible, which is beneficial to improving the printing efficiency of the printer and increasing the success rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the device;

[0018] Figure 2 It is a structural diagram of the typesetting component;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the maintenance device;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the maintenance device;

[0021] Figure 5 It is a cross-sectional schematic diagram of a square tube;

[0022] Figure 6 for Figure 4 A schematic diagram of the structure enlarged in the middle;

[0023] Figure 7 A schematic diagram for placing the model image on the board;

[0024] Figure 8 Adjust the schematic diagram for placing the model image on the board.

[0025] In the figure: 1. workbench; 11. resin frame; 12. guide rod; 13. slider; 14. support rod; 15. forming plate; 2. typesetting component; 21. round rod; 22. placement plate; 23. laser light strip; 24. vertical plate; 25. horizontal plate; 26. first motor; 27. first gear; 28. gear ring; 3. straight line; 31. circular positioning point; 32. standard line; 4. maintenance device; 41. fixed block; 42. support plate; 43. collection frame; 44. sliding block; 45. sponge roller; 46. rack; 47. fixed plate; 48. servo motor; 49. second gear; 5. square cylinder; 51. piston; 52. square tube; 53. first one-way rotating plate; 54. second one-way rotating plate; 55. horizontal rod; 56. connecting frame. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-8 In this embodiment:

[0028] A multi-workpiece typesetting structure for a DLP printer includes a workbench 1, a projection mechanism is provided at the bottom of the workbench 1, a translucent resin frame 11 is provided on the upper surface of the workbench 1, a vertical guide rod 12 is fixedly connected to the upper surface of the workbench 1, a slider 13 is slidably connected to the guide rod 12, one side of the slider 13 is fixedly connected to a support rod 14, a molding plate 15 is installed on the lower surface of the support rod 14, and a typesetting component 2 is provided on the upper surface of the workbench 1, located on one side of the resin frame 11.

[0029] This device is used for typesetting when printing multiple workpieces at the same time. When the printer is printing, the forming plate 15 is lowered to the resin liquid in the resin frame 11 when necessary, and projection printing is performed through the projection mechanism at the bottom of the workbench 1. However, when printing multiple workpieces, attention must be paid to the distance between the multiple workpieces to avoid contact between the multiple workpieces, and multiple workpieces are printed into one model. The typesetting component 2 is used to reasonably arrange the positions of multiple models before printing, make full use of the space on the lower surface of the forming plate 15, and print as many models as possible, which is conducive to improving the printing efficiency of the printer and increasing the success rate.

[0030] The typesetting component 2 includes a round rod 21, which is rotatably connected to the workbench 1. The outer circle of the round rod 21 is fixedly connected to the support rod 14, and one end of the support rod 14 is fixedly connected to the placement plate 22. The placement plate 22 is used to place the model picture. A light-emitting component is provided on one side of the placement plate 22. The placement plate 22 is a transparent plate. The upper surface of the resin frame 11 is provided with a ring-shaped laser light strip 23. The upper surface of the workbench 1 is fixedly connected to the vertical plate 24, one side of the vertical plate 24 is fixedly connected to the horizontal plate 25, and one side of the horizontal plate 25 is fixedly connected to the first motor 26. The main shaft of the first motor 26 is fixedly connected to the first gear 27. The outer circle of the round rod 21 is fixedly connected to the gear ring 28, and the gear ring 28 is engaged with the first gear 27. Two straight lines 3 perpendicular to each other are provided on the placement plate 22. The two straight lines 3 are respectively located at the center line position of the placement plate 22. A plurality of circular positioning points 31 are provided on the placement plate 22. The circular positioning points 31 are used for placing and positioning the model picture. The circular positioning points 31 are arranged in an array, and a plurality of standard lines 32 are provided on the placement plate 22.

[0031] When printing multiple models, first, print a top view of a single model, draw a straight line at the center of the picture, and then before computer typesetting, the first motor 26 drives the round rod 21 to rotate through the first gear 27 and the gear ring 28, and rotates the placement plate 22 to the top of the resin frame 11. Then the annular laser light strip 23 irradiates the transparent placement plate 22, forming a light strip with the same size and shape as the resin frame 11, as shown in the figure. Figure 7 At the middle M, under the action of the light-emitting component, the placement board 22 emits light, and then multiple model images are placed on the placement board 22. The model pattern is located inside the laser light strip 23, and the midpoint of the model image coincides with the circular positioning point 31, as shown in FIG. Figure 7 , similar to viewing an X-ray film on a luminous plate, there will be overlap between the models in the image, such as Figure 7 In E and F, adjust the two overlapping pictures so that all the models are not connected to each other and are independent, thereby fixing the position of each model. At this time, the position of each model is the position printed by the printer on the build plate. Then adjust the position of each model on the printer. By arranging the printing position of the model in advance through the pictures before each printing, the possibility of model adhesion is avoided and the model is guaranteed to print normally.

[0032] The outer circle of the round rod 21 is provided with a maintenance device 4, which is used to maintain the forming plate 15. The maintenance device 4 includes a fixed block 41, which is fixedly connected to the round rod 21, and one side of the fixed block 41 is fixedly connected to the support plate 42. The upper surface of the support plate 42 is fixedly connected to the collection frame 43. The side walls on both sides of the inner cavity of the collection frame 43 are provided with a slide groove, and the sliding block 44 is slidably connected in the slide groove. The sponge roller 45 is rotatably connected between the two sliding blocks 44, one of the slide grooves passes through the collection frame 43, and one of the sliding blocks 44 extends out of the slide groove. One side of the sliding block 44 is fixedly connected to the rack 46, and one side of the collection frame 43 is fixedly connected to the fixed plate 47. One side of the fixed plate 47 is fixedly connected to the servo motor 48. The main shaft of the servo motor 48 is fixedly connected to the second gear 49, and the second gear 49 is engaged with the rack 46.

[0033] When the first motor 26 drives the round rod 21 to rotate through the first gear 27 and the gear ring 28, the placement plate 22 is rotated to the top of the resin frame 11, and the maintenance device 4 is driven to reach the bottom of the forming plate 15. The servo motor 48 in the maintenance device 4 drives the rack 46 to move, so that the sponge roller 45 slides over the lower surface of the forming plate 15 to clean the lower surface of the forming plate 15. The lower surface of the forming plate 15 is the position where the model is formed, which will be contaminated with the resin liquid in the resin frame 11, affecting the printing of the next model. The sponge roller 45 wipes off the resin residue on the lower surface of the forming plate 15 and drops it into the collection frame 43 to prevent it from falling onto the workbench 1 and contaminating the workbench. At this time, the placement plate 22 rotates to the top of the resin frame 11, covering the resin frame 11 to prevent stains from falling into the resin frame 11 when the sponge roller 45 cleans the forming plate 15, thereby contaminating the resin liquid.

[0034] The square tube 5 is fixedly connected to the support plate 42, and the inner wall of the square tube 5 is slidably connected to the piston 51. The square tube 52 is connected between the square tube 5 and the collection frame 43. The side wall of the square tube 52 is rotatably connected to the first one-way rotating plate 53. A through groove is provided on one side of the square tube 52, and the side wall of the through groove is rotatably connected to the second one-way rotating plate 54. One side of the piston 51 is fixedly connected to the cross bar 55, one end of the cross bar 55 is fixedly connected to the connecting frame 56, and the other end of the connecting frame 56 is fixedly connected to the rack 46.

[0035] The servo motor 48 drives the rack 46 to move, and the sponge roller 45 slides across the lower surface of the forming plate 15. While cleaning the lower surface of the forming plate 15, the rack 46 pulls the cross bar 55, and the cross bar 55 pulls the piston 51 to move. Under the action of air pressure, the second one-way rotating plate 54 is closed, and the first one-way rotating plate 53 is opened, so that the square tube 5 is connected to the collection frame 43. When the piston 51 moves, suction is generated on the collection frame 43 to collect the dust and stains cleaned by the sponge roller 45. A filter is provided at the opening at one end of the square tube 52 to prevent dust from entering the square tube 5, further reducing dust falling and avoiding contamination of the workbench.

[0036] The working principle and usage process of the present invention are as follows: the first motor 26 drives the round rod 21 to rotate through the first gear 27 and the gear ring 28, rotates the placement plate 22 to the top of the resin frame 11, and the support plate 42 is rotated to the bottom of the forming plate 15. At this time, the annular laser light strip 23 is irradiated on the transparent placement plate 22 to form a light strip with the same size and shape as the resin frame 11. Then, multiple model images are placed on the placement plate 22, and the model pattern is located inside the laser light strip 23. The midpoint position of the model image coincides with the circular positioning point 31. At this time, there will be overlap of the models in the image. At this time, the two overlapping images are adjusted so that all the models are not connected to each other and are independent, thereby Fix the position of each model. At this time, the position of each model is the position printed out by the printer on the forming plate. Then adjust the position of each model on the printer. At the same time, the servo motor 48 drives the rack 46 to move, so that the sponge roller 45 slides from the lower surface of the forming plate 15 to clean the lower surface of the forming plate 15. The rack 46 pulls the cross bar 55, and the cross bar 55 pulls the piston 51 to move. Under the action of air pressure, the second one-way rotating plate 54 is closed and the first one-way rotating plate 53 is opened, so that the square tube 5 is connected to the collection frame 43. When the piston 51 moves, suction is generated on the collection frame 43 to collect the dust and stains cleaned by the sponge roller 45.

[0037] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multi-workpiece typesetting structure for a DLP printer, characterized by: The invention comprises a workbench (1), wherein a projection mechanism is provided at the bottom of the workbench (1), a light-transmitting resin frame (11) is provided on the upper surface of the workbench (1), a vertical guide rod (12) is fixedly connected to the upper surface of the workbench (1), a slider (13) is slidably connected to the guide rod (12), one side of the slider (13) is fixedly connected to a first support rod (14), a molding plate (15) is installed on the lower surface of the first support rod (14), and a typesetting component (2) is provided on the upper surface of the workbench (1) on one side of the resin frame (11); The typesetting component (2) includes a round rod (21), the round rod (21) is rotatably connected to the workbench (1), the outer circle of the round rod (21) is fixedly connected to the second support rod, one end of the second support rod is fixedly connected to the placement plate (22), the placement plate (22) is used to place the model picture, a light-emitting component is provided on one side of the placement plate (22), the placement plate (22) is a transparent plate, and the upper surface of the resin frame (11) is provided with a ring-shaped laser light strip (23); The placement plate (22) is rotated to the top of the resin frame (11), and then the annular laser light strip (23) is irradiated on the transparent placement plate (22), forming a light strip with the same size and shape as the resin frame (11). Under the action of the light-emitting component, the placement plate (22) emits light, and the model pattern is located inside the laser light strip (23); The placement plate (22) is provided with two straight lines (3) perpendicular to each other, and the two straight lines (3) are respectively located at the center line position of the placement plate (22). The placement plate (22) is provided with a plurality of circular positioning points (31), and the circular positioning points (31) are used for placing and positioning the model image. The circular positioning points (31) are arranged in an array, and the placement plate (22) is provided with a plurality of standard lines (32).

2. The multi-workpiece typesetting structure for a DLP printer according to claim 1, characterized in that: The upper surface of the workbench (1) is fixedly connected to a vertical plate (24), one side of the vertical plate (24) is fixedly connected to a horizontal plate (25), one side of the horizontal plate (25) is fixedly connected to a first motor (26), a main shaft of the first motor (26) is fixedly connected to a first gear (27), and the outer circle of the round rod (21) is fixedly connected to a gear ring (28), and the gear ring (28) is meshed with the first gear (27).

3. The multi-workpiece typesetting structure for a DLP printer according to claim 2, characterized in that: The outer circle of the round rod (21) is provided with a maintenance device (4), and the maintenance device (4) is used to maintain the forming plate (15). The maintenance device (4) includes a fixed block (41), the fixed block (41) is fixedly connected to the round rod (21), one side of the fixed block (41) is fixedly connected to the support plate (42), and the upper surface of the support plate (42) is fixedly connected to the collection frame (43). The side walls on both sides of the inner cavity of the collection frame (43) are provided with sliding grooves, and the sliding blocks (44) are slidably connected in the sliding grooves. The sponge roller (45) is rotatably connected between the two sliding blocks (44).

4. The multi-workpiece typesetting structure for a DLP printer according to claim 3, characterized in that: One of the slide grooves passes through the collection frame (43), one of the sliding blocks (44) extends out of the slide groove, one side of the sliding block (44) is fixedly connected to the rack (46), one side of the collection frame (43) is fixedly connected to the fixed plate (47), one side of the fixed plate (47) is fixedly connected to the servo motor (48), the main shaft of the servo motor (48) is fixedly connected to the second gear (49), and the second gear (49) is meshed with the rack (46).

5. The multi-workpiece typesetting structure for a DLP printer according to claim 4, characterized in that: The support plate (42) is fixedly connected to a square tube (5), the inner wall of the square tube (5) is slidably connected to a piston (51), the square tube (5) is connected to the collecting frame (43), the side wall of the square tube (52) is rotatably connected to a first one-way rotating plate (53), one side of the square tube (52) is provided with a through groove, the side wall of the through groove is rotatably connected to a second one-way rotating plate (54), one side of the piston (51) is fixedly connected to a cross bar (55), one end of the cross bar (55) is fixedly connected to a connecting frame (56), and the other end of the connecting frame (56) is fixedly connected to a rack (46).

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