Surrounding type DLP printer

Abstract

The utility model discloses a surrounding type digital light processing (DLP) printer, which belongs to the technical field of DLP printers and comprises a printer body, and an adjusting structure is arranged on the inner wall of the printer body. A cleaning structure is arranged on the adjusting structure; the adjusting structure comprises a sliding rail installed on the inner wall of the printer body, a sliding block is slidably connected to the outer wall of the sliding rail, a scraper is installed on the side, away from the sliding rail, of the sliding block, a connecting block is installed on the inner wall of the scraper, a balance plate is installed on the side, away from the scraper, of the connecting block, and a sliding pipe is installed on the outer wall of the connecting block. By arranging the adjusting structure, when the scraping block expands with heat and contracts with cold, the inserting block and the spring can be driven to move upwards, meanwhile, the spring is driven to stretch out and draw back to a certain degree, the problem that resin cannot be completely scraped flat due to the fact that a gap between the roller and the printing platform is too large or too small is effectively avoided, and the attractiveness of a resin coating and the performance of the resin coating are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of DLP printers, and in particular relates to a surround-type DLP printer. Background Art

[0002] The surround DLP printer is a 3D printing device that uses digital light processing technology. It projects patterns layer by layer onto photosensitive resin through a high-resolution digital projector, which cures it quickly. Through layer-by-layer projection and curing, a complete three-dimensional object is finally constructed. The printer's light source or projection system is arranged around the printing platform or resin tank, and the resin layer is evenly illuminated from multiple angles through a surround method, reducing shadows and dead angles, and improving printing accuracy and uniformity.

[0003] Generally, after projecting the pattern onto the photosensitive resin, the printer uses a scraper to evenly process the printing platform to construct a three-dimensional object. However, when the device works in different temperature environments, the gap between the scraper and the printing platform may be affected due to the thermal expansion and contraction characteristics of the material. When the gap is too large or too small, the scraper may not be able to completely scrape the resin flat, which not only affects the aesthetics of the resin coating, but may also have a negative impact on the performance of the resin coating.

[0004] To solve the above problems, this application proposes a surround DLP printer. Utility Model Content

[0005] In view of the problems in the related art, the utility model proposes a surround DLP printer to overcome the above technical problems existing in the existing related art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A wraparound DLP printer comprises a printer body, wherein an inner wall of the printer body is provided with an adjustment structure;

[0008] The adjustment structure is provided with a cleaning structure;

[0009] The adjustment structure includes a slide rail installed on the inner wall of the printer body, the outer wall of the slide rail is slidably connected with a slider, a scraper is installed on the side of the slider away from the slide rail, a connecting block is installed on the inner wall of the scraper, a balancing plate is installed on the side of the connecting block away from the scraper, a slide tube is installed on the outer wall of the connecting block, the top wall of the slide tube is fixedly connected to the bottom wall of the balancing plate, the inner wall of the slide tube is slidably connected with an insert block, the bottom wall of the insert block is installed with a scraper block, and the top wall of the scraper block is installed with a spring.

[0010] A cylinder is installed on the bottom wall of the balance plate, a hollow tube is installed on the top wall of the scraper block, the inner wall of the hollow tube is slidably connected to the outer wall of the cylinder, the bottom wall of the cylinder is fixedly connected to the top of the scraper block, and the spring is located at the exact center of the hollow tube. The cylinder and the hollow tube are arranged to protect the spring.

[0011] The cleaning structure includes a roller rotatably connected to the inner wall of the scraper block, a resin box is installed on the inner wall of the printer body, the resin box is located below the slide rail, a printing platform is provided inside the resin box, and the bottom wall of the roller is located above the printing platform. By arranging the roller, the effect of evenly distributing the resin is further improved.

[0012] The inner wall of the scraper block is rotatably connected with a threaded rod, the outer wall of the threaded rod is threadedly connected with a connector, a scraper is installed on the bottom wall of the connector, and the inner wall of the scraper is movably connected with the outer wall of the roller. By setting the threaded rod, the resin on the roller can be effectively cleaned.

[0013] The top wall of the connecting piece is slidably connected to the inner top wall of the scraping block. By arranging the connecting piece and the scraping block to be slidably connected, the stability of the connecting piece is effectively improved.

[0014] A fixed block is installed on the bottom wall of the scraper, the outer wall of the fixed block is slidably connected to the outer wall of the slide rail, the inner wall of the fixed block is rotatably connected to a wheel, and a slide groove for the sliding of the wheel is opened on the top wall of the resin box. By arranging the wheel, the stability of the scraper when moving is effectively improved.

[0015] In summary, the technical effects and advantages of the utility model are as follows: the surround DLP printer,

[0016] 1. By setting up the adjustment structure, when the scraper block expands and contracts due to heat and cold, it will drive the plug block and spring to move upward, and at the same time drive the spring to expand and contract to a certain extent, effectively avoiding the gap between the roller and the printing platform being too large or too small, which in turn affects the problem of not being able to completely scrape the resin flat, and effectively improves the aesthetics and performance of the resin coating.

[0017] 2. By setting up a cleaning structure, starting the micro motor to drive the threaded rod to rotate, and the threaded rod drives the scraper to scrape the surface of the roller, effectively preventing too much resin from being wrapped around the roller and affecting the effect of the roller on the printing platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the internal structure of the printer body of the utility model;

[0020] Figure 3This is a schematic diagram of the cleaning structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the spring and plug structure of the utility model.

[0022] In the figure:

[0023] 1. Printer body;

[0024] 2. Adjustment structure; 201. Slide rail; 202. Sliding block; 203. Scraper; 204. Connecting block; 205. Balance plate; 206. Sliding tube; 207. Insert block; 208. Scraper block; 209. Spring; 210. Cylinder; 211. Hollow tube;

[0025] 3. Cleaning structure; 301. Roller; 302. Threaded rod; 303. Connector; 304. Scraper;

[0026] 4. Fixed block; 5. Wheel; 6. Slide; 7. Resin box; 8. Printing platform. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figure 1-4 A surround DLP printer includes a printer body 1, the inner wall of the printer body 1 is provided with an adjustment structure 2; the adjustment structure 2 includes a slide rail 201 installed on the inner wall of the printer body 1, the number of the slide rails 201 is two, symmetrically distributed with the printer body 1 as the center, and the slide rail 201 is an electric slide rail 201, the outer wall of the slide rail 201 is slidably connected with a slider 202, each slider 202 is installed on the printer body 1, and a scraper 203 is installed on the side of the slider 202 away from the slide rail 201, and the scraper 203 is located between the two sliders 202.

[0029] The inner wall of the scraper 203 is installed with a connecting block 204. The scraper 203 is hollow, and a connecting block 204 is installed on each inner wall on both sides. A balancing plate 205 is installed on the side of the connecting block 204 away from the scraper 203. The top wall of the balancing plate 205 is fixedly installed with the inner top wall of the scraper 203. A sliding tube 206 is installed on the outer wall of the connecting block 204. The top wall of the sliding tube 206 is fixedly connected with the bottom wall of the balancing plate 205. The inner wall of the sliding tube 206 is slidably connected with an insert block 206. 07, there are two connecting blocks 204, each connecting block 204 is installed with a sliding tube 206, each sliding tube 206 is slidably connected with an insert block 207, a scraper block 208 is installed on the bottom wall of the insert block 207, and a spring 209 is installed on the top wall of the scraper block 208. By applying force to the scraper block 208, the scraper block 208 drives the insert block 207 to slide on the inner wall of the sliding tube 206. In addition, the spring 209 is provided to drive the scraper block 208 to contract to a certain extent.

[0030] A cylinder 210 is installed on the bottom wall of the balance plate 205, and a hollow tube 211 is installed on the top wall of the scraper block 208. The inner wall of the hollow tube 211 is slidably connected to the outer wall of the cylinder 210, and the bottom wall of the cylinder 210 is fixedly connected to the top of the scraper block 208. The spring 209 is located at the exact center of the hollow tube 211. The scraper block 208 drives the hollow tube 211 to slide on the cylinder 210 and drives the spring 209 to contract. The scraper block 208 is limited to a certain extent by the set spring 209, cylinder 210 and hollow tube 211 to adjust the influence of the scraper block 208 due to the characteristics of thermal expansion and contraction.

[0031] Reference Figure 2-3 A cleaning structure 3 is provided on the adjustment structure 2. The cleaning structure 3 includes a roller 301 rotatably connected to the inner wall of the scraper block 208. There are four rollers 301, which are equidistantly distributed with the scraper block 208 as the center. A resin box 7 is installed on the inner wall of the printer body 1. The resin box 7 is located below the slide rail 201. A printing platform 8 is provided inside the resin box 7. The bottom wall of the roller 301 is located above the printing platform 8. The roller 301 is provided to roll on the surface of the printing platform 8 to improve the uniformity of the resin.

[0032] The inner wall of the scraper block 208 is rotatably connected to a threaded rod 302, and a micro motor arranged at one end of the threaded rod 302 is used to drive the threaded rod 302 to rotate. The outer wall of the threaded rod 302 is threadedly connected to a connecting piece 303, and a scraper 304 is installed on the bottom wall of the connecting piece 303. The inner wall of the scraper 304 is movably connected to the outer wall of the roller 301, and the inner wall of the scraper 304 is movably connected to the outer wall of each roller 301. The top wall of the connecting piece 303 is slidably connected to the inner top wall of the scraper block 208, which effectively improves the stability of the connecting piece 303 and the scraper 304 when moving. When the roller 301 needs to be cleaned, the micro motor is started to drive the threaded rod 302 to rotate, and the threaded rod 302 drives the connecting piece 303 and the scraper 304 to scrape the surface of the roller 301.

[0033] Reference Figure 2-4 A fixed block 4 is installed on the bottom wall of the scraper 203, the outer wall of the fixed block 4 is slidably connected to the outer wall of the slide rail 201, the inner wall of the fixed block 4 is rotatably connected to the wheel 5, and the top wall of the resin box 7 is provided with a slide groove 6 for the sliding of the wheel 5. There are two fixed blocks 4, which are respectively located at the bottom of both sides of the scraper 203, and three wheels 5 are distributed on the inner wall of each wheel 5 to improve the stability of the scraper 203 when moving.

[0034] Working principle:

[0035] When the scraper block 208 expands and contracts due to heat, it will drive the insert block 207 and the spring 209 to move upward, and at the same time drive the spring 209 to expand and contract to a certain extent, and the scraper block 208 will drive the hollow tube 211 to slide, and the start slide rail 201 will drive the slider 202 to move, and the slider 202 will drive the roller 301 to roll on the surface of the printing platform 8, effectively avoiding the gap between the roller 301 and the printing platform 8 being too large or too small, which will affect the problem of not being able to completely scrape the resin flat, and effectively improve the aesthetics and performance of the resin coating.

[0036] When the roller 301 needs to be cleaned, the micro motor is started to drive the threaded rod 302 to rotate. The threaded rod 302 drives the connecting piece 303 and the scraper 304 to scrape the surface of the roller 301, effectively preventing too much resin from being wrapped around the roller 301 and affecting the effect of the roller 301 on the printing platform 8.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wraparound DLP printer, comprising a printer body (1), characterized in that: The inner wall of the printer body (1) is provided with an adjustment structure (2); The adjustment structure (2) is provided with a cleaning structure (3); The adjustment structure (2) comprises a slide rail (201) mounted on the inner wall of the printer body (1); the outer wall of the slide rail (201) is slidably connected with a slider (202); a scraper (203) is mounted on the side of the slider (202) away from the slide rail (201); a connecting block (204) is mounted on the inner wall of the scraper (203); a balancing plate (205) is mounted on the side of the connecting block (204) away from the scraper (203); a slide tube (206) is mounted on the outer wall of the connecting block (204); the top wall of the slide tube (206) is fixedly connected to the bottom wall of the balancing plate (205); an insert block (207) is slidably connected to the inner wall of the slide tube (206); a scraper block (208) is mounted on the bottom wall of the insert block (207); and a spring (209) is mounted on the top wall of the scraper block (208).

2. A surround DLP printer according to claim 1, characterized in that: A cylinder (210) is installed on the bottom wall of the balancing plate (205), a hollow tube (211) is installed on the top wall of the scraping block (208), the inner wall of the hollow tube (211) is slidably connected to the outer wall of the cylinder (210), the bottom wall of the cylinder (210) is fixedly connected to the top of the scraping block (208), and the spring (209) is located at the exact center of the hollow tube (211).

3. A surround DLP printer according to claim 1, characterized in that: The cleaning structure (3) includes a roller (301) rotatably connected to the inner wall of the scraper block (208); a resin box (7) is installed on the inner wall of the printer body (1); the resin box (7) is located below the slide rail (201); a printing platform (8) is arranged inside the resin box (7); and the bottom wall of the roller (301) is located above the printing platform (8).

4. A surround DLP printer according to claim 1, characterized in that: The inner wall of the scraper block (208) is rotatably connected to a threaded rod (302), the outer wall of the threaded rod (302) is threadably connected to a connecting piece (303), a scraper (304) is mounted on the bottom wall of the connecting piece (303), and the inner wall of the scraper (304) is movably connected to the outer wall of the roller (301).

5. A surround DLP printer according to claim 4, characterized in that: The top wall of the connecting member (303) is slidably connected to the inner top wall of the scraping block (208).

6. A surround DLP printer according to claim 3, characterized in that: A fixing block (4) is installed on the bottom wall of the scraper (203), the outer wall of the fixing block (4) is slidably connected to the outer wall of the slide rail (201), the inner wall of the fixing block (4) is rotatably connected to a wheel (5), and a sliding groove (6) for the sliding of the wheel (5) is provided on the top wall of the resin box (7).

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