Ejecting structure of photocuring 3D printing equipment

Abstract

The utility model belongs to the technical field of 3D printing equipment, and particularly relates to a material ejecting structure of photocuring 3D printing equipment, which comprises a top plate and a base plate, the upper part of the top plate is fixedly connected with a plurality of first ejector rods and a plurality of second ejector rods, and the plurality of first ejector rods and the plurality of second ejector rods can be connected with the base plate in a sliding manner; a first connecting hole is formed in the lower portion of the first ejector rod, and a first screw is in threaded connection with the interior of the first connecting hole. A second connecting hole is formed in the lower portion of the second ejector rod, and a second screw is in threaded connection with the interior of the second connecting hole. According to the device, the top plate and the first ejector rods and the second ejector rods at the upper part are manufactured by adopting a split structure, so that the processing difficulty is reduced, and the processing cost is also saved; when the device is used, the positions of a plurality of first ejector rods and a plurality of second ejector rods on the upper portion of the ejector plate can be adjusted according to production requirements, so that the device is more flexible in use.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printing equipment, in particular to a material ejecting structure of a light-curing 3D printing equipment. Background Art

[0002] Stereolithography 3D printing technology is the earliest practical rapid prototyping technology. It uses liquid photosensitive resin as raw material, designs a three-dimensional solid model through CAD, slices the model using discrete programs, and designs the scanning path. The generated data will accurately control the movement of the laser scanner and the lifting platform. The laser beam passes through the scanner controlled by the CNC device and irradiates the surface of the liquid photosensitive resin according to the designed scanning path, so that a layer of resin in a specific area of ​​the surface is cured. When one layer is processed, a cross-section of the part is generated; then, the lifting platform descends a certain distance, and another layer of liquid resin is covered on the cured layer. Then, a second layer is scanned, and the second cured layer is firmly bonded to the previous cured layer. In this way, layer by layer, a three-dimensional workpiece prototype is formed.

[0003] However, when processing parts with this technology, the laser heating base will stick to the substrate, making it difficult to remove, time-consuming and labor-intensive. In order to solve the problem of separating the part base and the substrate, the current existing technology is to separate the part and the substrate through a lifting action. A top plate is fixed under the substrate, and cylinders with a diameter of 4mm and a height of 20mm are evenly distributed on the top plate; corresponding through holes are opened on the substrate at the same time; when the substrate is lowered, the top plate cylinder contacts the part base, completing the lifting action and achieving separation.

[0004] The top plates currently produced by equipment manufacturers have two major drawbacks: one is that they are processed in one piece, which results in high processing costs; the other is that they are inflexible. If the size of the cylinder to be lifted needs to be changed later, a new set of base plates and top plates can only be processed.

[0005] Therefore, in order to solve the above problems, a material ejecting structure of a light-curing 3D printing device is proposed. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the shortcomings of the existing technology, the utility model provides a top material structure of a light-curing 3D printing device, which solves the problems of high processing cost and inflexible use of the existing top material structure.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a material ejection structure of a light-curing 3D printing device, comprising a top plate and a base plate, wherein a plurality of first ejector rods and a plurality of second ejector rods are fixedly connected to the upper portion of the top plate, and the plurality of first ejector rods and the plurality of second ejector rods can be slidably connected to the base plate;

[0010] A first connecting hole is formed at the lower portion of the first push rod, and a first screw is threadedly connected to the interior of the first connecting hole;

[0011] A second connecting hole is formed at the lower portion of the second push rod, and a second screw is threadedly connected inside the second connecting hole.

[0012] Preferably, the top plate includes a first plate body, and a plurality of first mounting holes and a plurality of second mounting holes are opened on the upper part of the first plate body. The plurality of first mounting holes are distributed front and back and are all located on the left side of the upper part of the first plate body, and the plurality of first mounting holes and the plurality of second mounting holes do not contact each other.

[0013] Preferably, the left front portion, the left rear portion, the right front portion and the right rear portion of the first plate body are all fixedly connected with fixing blocks, and a group of fixing holes are opened on the upper portions of the four fixing blocks.

[0014] Preferably, the substrate includes a second plate body, and a plurality of first jacks and a plurality of second jacks are provided on the upper part of the second plate body, and the plurality of first jacks are respectively located on the left side and the right side of the upper part of the second plate body, and the plurality of first jacks and the plurality of second jacks do not contact each other.

[0015] Preferably, the first screw passes through the first mounting hole and fixes the first push rod to the upper part of the first plate body, and the first push rod is slidably connected to the first insertion hole.

[0016] Preferably, the second screw passes through the second mounting hole and fixes the second push rod to the upper part of the first plate body, and the second push rod is slidably connected to the second insertion hole.

[0017] (3) Beneficial effects

[0018] Compared with the existing technology, the present invention provides a material ejection structure for a light-curing 3D printing device, which has the following beneficial effects:

[0019] 1. A top material structure of a light-curing 3D printing device, wherein the top plate and the plurality of first top rods and the plurality of second top rods on the top of the device are manufactured with a split structure, which not only reduces the processing difficulty of the device but also saves processing costs.

[0020] 2. The ejector structure of the light-curing 3D printing device can adjust the positions of the multiple first ejector rods and the multiple second ejector rods on the upper part of the top plate according to production requirements when the device is in use, making the device more flexible in use.

[0021] 3. The ejector structure of the light-curing 3D printing device has an ejector plate and a base plate that can accept small floating size changes of the ejector pin. When meeting different printing requirements, there is no need to replace the entire ejector structure, which can further save usage costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this 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 drawings:

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the top plate of the utility model;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the substrate of the utility model;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the first push rod and the second push rod of the utility model.

[0028] In the figure: 1. Top plate; 2. Base plate; 3. First top rod; 4. Second top rod; 11. First plate body; 12. First mounting hole; 13. Second mounting hole; 14. Fixing block; 15. Fixing hole; 21. Second plate body; 22. First insertion hole; 23. Second insertion hole; 31. First connecting hole; 32. First screw; 41. Second connecting hole; 42. Second screw. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0030] Specific examples are given below.

[0031] See also Figure 1-Figure 5 The utility model provides a technical solution: a top material structure of a light-curing 3D printing device, including a top plate 1 and a base plate 2, wherein a plurality of first top rods 3 and a plurality of second top rods 4 are fixedly connected to the upper part of the top plate 1, and the plurality of first top rods 3 and the plurality of second top rods 4 can be slidably connected to the base plate 2.

[0032] Further, such as Figures 1-4As shown, the top plate 1 includes a first plate body 11, and a plurality of first mounting holes 12 and a plurality of second mounting holes 13 are opened on the upper part of the first plate body 11. The plurality of first mounting holes 12 are distributed front and back and are all located on the left side of the upper part of the first plate body 11. The plurality of first mounting holes 12 and the plurality of second mounting holes 13 do not contact each other. The left front, left rear, right front and right rear of the first plate body 11 are fixedly connected with a fixing block 14, and a group of fixing holes 15 are opened on the upper part of the four fixing blocks 14. The base plate 2 includes a second plate body 21, and a plurality of first plug holes 22 and a plurality of second plug holes 23 are opened on the upper part of the second plate body 21. The plurality of first plug holes 22 are respectively located on the left side and the right side of the upper part of the second plate body 21, and the plurality of first plug holes 22 and the plurality of second plug holes 23 do not contact each other.

[0033] Through the above solution: the top plate 1 and the base plate 2 of the device can accept the change of the small floating size of the ejector rod. When meeting different printing requirements, there is no need to replace the entire ejector structure, which can further save the use cost.

[0034] Further, such as Figure 1 、 Figure 2 and Figure 5 As shown, a first connecting hole 31 is opened at the lower part of the first push rod 3, and a first screw 32 is threadedly connected to the inside of the first connecting hole 31. A second connecting hole 41 is opened at the lower part of the second push rod 4, and a second screw 42 is threadedly connected to the inside of the second connecting hole 41. The first screw 32 passes through the first mounting hole 12 and fixes the first push rod 3 to the upper part of the first plate body 11. The first push rod 3 is slidably connected to the first socket 22. The second screw 42 passes through the second mounting hole 13 and fixes the second push rod 4 to the upper part of the first plate body 11. The second push rod 4 is slidably connected to the second socket 23.

[0035] Through the above scheme: the top plate 1 and the multiple first top rods 3 and multiple second top rods 4 on the upper part of the device are manufactured with a split structure, which not only reduces the processing difficulty of the device, but also saves processing costs. At the same time, when the device is in use, the positions of the multiple first top rods 3 and multiple second top rods 4 on the upper part of the top plate 1 can be adjusted according to production requirements, making the device more flexible in use.

[0036] Working principle: First, according to the printing requirements, the corresponding number and position of the first ejector rods 3 and the second ejector rods 4 are fixed on the upper part of the top plate 1, and then the top plate 1 and the base plate 2 are respectively installed at the printing positions of the printer. When the printer completes printing, the push rod in the printer is controlled to push the top plate 1 upward, and the printing material adhered to the upper part of the base plate 2 can be lifted up by the multiple first ejector rods 3 and the multiple second ejector rods 4 on the top plate 1 to separate it from the base plate 2. When the shape of the printed object needs to be changed, the corresponding number and position of the first ejector rods 3 and the second ejector rods 4 can be adjusted according to the printing requirements, so that the device can be used to adapt to different printing requirements.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A top material structure of a light-curing 3D printing device, comprising a top plate (1) and a base plate (2), characterized in that: A plurality of first push rods (3) and second push rods (4) are fixedly connected to the upper portion of the top plate (1), and the plurality of first push rods (3) and the plurality of second push rods (4) can be slidably connected to the base plate (2); A first connecting hole (31) is provided at the lower portion of the first push rod (3), and a first screw (32) is threadedly connected inside the first connecting hole (31); A second connecting hole (41) is provided at the lower portion of the second push rod (4), and a second screw (42) is threadedly connected inside the second connecting hole (41).

2. The ejector structure of a light-curing 3D printing device according to claim 1, characterized in that: The top plate (1) comprises a first plate body (11), wherein a plurality of first mounting holes (12) and a plurality of second mounting holes (13) are provided on the upper portion of the first plate body (11), wherein the plurality of first mounting holes (12) are distributed front to back and are all located on the left side of the upper portion of the first plate body (11), and the plurality of first mounting holes (12) and the plurality of second mounting holes (13) do not contact each other.

3. The ejector structure of a light-curing 3D printing device according to claim 2, characterized in that: The left front portion, the left rear portion, the right front portion and the right rear portion of the first plate body (11) are all fixedly connected with fixing blocks (14), and a group of fixing holes (15) are opened on the upper portions of the four fixing blocks (14).

4. The ejector structure of a light-curing 3D printing device according to claim 1, characterized in that: The base plate (2) comprises a second plate body (21), and a plurality of first plug holes (22) and a plurality of second plug holes (23) are provided on the upper portion of the second plate body (21), and the plurality of first plug holes (22) are respectively located on the upper left side and the upper right side of the second plate body (21), and the plurality of first plug holes (22) and the plurality of second plug holes (23) do not contact each other.

5. The ejector structure of a light-curing 3D printing device according to claim 1, characterized in that: The first screw (32) passes through the first mounting hole (12) and fixes the first push rod (3) on the upper part of the first plate body (11); the first push rod (3) is slidably connected to the first insertion hole (22).

6. The ejector structure of a light-curing 3D printing device according to claim 1, characterized in that: The second screw (42) passes through the second mounting hole (13) and fixes the second push rod (4) to the upper part of the first plate body (11), and the second push rod (4) is slidably connected to the second insertion hole (23).

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