3D printing work platform

Abstract

The present invention belongs to the technical field of printing mechanism, and discloses a 3D printing work platform, including a frame, a bottom plate and a base plate installed on the frame, both sides of the bottom plate are provided with mounting plates, and both mounting plates are provided with mounting grooves; it also includes two leveling units, and the leveling units include a vertical rod hinged on the frame, a magnet layer is provided at the top of the vertical rod, a first rack is slidably connected to the frame, a rotating shaft is rotatably connected to the frame, a first gear and a second gear are fixed on the rotating shaft, and a second rack is also slidably connected to the frame; a cavity is provided in the bottom plate, a slide plate is slidably connected in the cavity, and both ends of the slide plate are provided with a moving rod that penetrates the bottom plate and extends outside the bottom plate, a magnet block that repels the magnet layer is provided on one end of the moving rod located outside the bottom plate, and a spring is sleeved on one end of the moving rod located inside the bottom plate; an air outlet connected to the cavity is provided at the bottom of the bottom plate. The present invention solves the problem of manual leveling, which is time-consuming and labor-intensive.

Description

Technical Field

[0001] The invention belongs to the field of printing mechanisms, and in particular relates to a 3D printing work platform. Background Art

[0002] 3D printing is a rapid prototyping technology that uses digital model files as the basis, uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer. It is widely used in jewelry, footwear, industrial design, architecture, engineering and construction, automobiles, aerospace, dental and medical industries, education, geographic information systems, civil engineering and other fields.

[0003] In the 3D printing process, in order to ensure the accuracy of the printing, the work platform needs to be leveled before printing to ensure high printing accuracy. However, the existing work platform leveling is done manually, which will result in errors and is time-consuming and labor-intensive. In addition, the work platform vibrates during the printing process, causing the work platform to tilt, resulting in low printing accuracy. Summary of the invention

[0004] The present invention is intended to provide a 3D printing work platform to solve the problem of current manual leveling, which is time-consuming and labor-intensive.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a 3D printing work platform, comprising a bottom plate and a base plate mounted on a frame, both sides of the bottom plate are provided with mounting plates perpendicular to the bottom plate, and the opposite sides of the two mounting plates are provided with mounting grooves for mounting the base plate; the 3D printing work platform also comprises two leveling units symmetrical about the vertical axis of the bottom plate, the leveling units each comprise a vertical rod hinged on the frame, a magnet layer is provided at the top of the vertical rod, a first rack is slidably connected to the frame, a rotating shaft perpendicular to the first rack is rotatably connected to the frame, a second gear and a first gear meshed with the first rack are fixed on the rotating shaft, a second rack perpendicular to the first rack is slidably connected to the frame below one end of the bottom plate, and the second rack meshes with the second gear; a cavity is provided in the bottom plate, a slide plate is slidably connected in the cavity, a moving rod penetrating the bottom plate and extending outside the bottom plate is fixed at both ends of the slide plate, a magnet block repelling the magnet layer is provided on one end of the moving rod outside the bottom plate, and a spring is sleeved on one end of the moving rod inside the bottom plate; an air outlet connected to the cavity is provided at the bottom of the bottom plate.

[0006] The principle of this technical solution:

[0007] By providing a mounting groove on the mounting plate, the substrate can be slidably installed in the mounting groove, so that the substrate can be installed on the bottom plate, and the removal of the substrate can be convenient. When the substrate is damaged, it can be taken out by sliding the substrate to achieve replacement of the substrate.

[0008] The bottom plate is provided with a cavity, which can reduce the weight of the bottom plate and reduce the use of materials. At the same time, a slide plate is provided in the cavity, and a moving rod is provided on the slide plate, so that when the bottom plate is tilted, the moving rod and the slide plate can slide downward under the action of gravity.

[0009] The leveling unit is used to level the bottom plate. The specific working principle is as follows: when the bottom plate is tilted, the moving rod slides, so that the magnet block on the moving rod approaches the vertical rod, causing the magnet block to repel the magnet layer, resulting in the magnet layer driving the upper end of the vertical rod to move. The vertical rod is hinged on the frame to form a lever structure, so the other end of the vertical rod moves toward the bottom plate, thereby moving the first rack, and the movement of the first rack causes the first gear meshing with it to rotate, and the second gear rotates through the shaft transmission, thereby realizing the upward movement of the first rack, driving the bottom plate to move upward, and realizing the leveling of the bottom plate.

[0010] Beneficial effects of this technical solution:

[0011] 1. This technical solution is provided with a leveling unit, so that when the working platform deviates during the printing process, the bottom plate can be leveled by the leveling unit, thereby achieving the leveling of the working platform; and no manual operation is required, saving time and effort;

[0012] 2. This technical solution determines the distance that the moving rod moves according to the angle of the bottom plate offset, thereby realizing the distance that the first rack and the second rack move, thereby being able to determine the distance that the second rack drives the bottom plate to move up, making the leveling more accurate, thereby improving the printing accuracy;

[0013] 3. By setting a moving rod, when the base plate deviates, the moving rod can be moved to achieve leveling without manual operation, and the base plate can be adjusted in time according to the degree of deviation of the base plate, thereby making the printing accuracy higher during the printing process.

[0014] Furthermore, an air inlet communicating with the cavity is provided at the upper end of the bottom plate, an air inlet check valve is provided in the air inlet, and an air outlet check valve is provided in the air outlet.

[0015] Beneficial effects: During the printing process, the substrate will generate a lot of heat when working for a long time. When the workbench is offset, the movement of the moving rod will drive the slide to move, so that the piston squeezes the gas at one end of the cavity, and the other end of the cavity inhales air through the air inlet, which can achieve the suction of the hotter gas between the bottom plate and the plate into the cavity, and then when the piston squeezes the gas on this side, the gas is discharged, so that the substrate can be cooled. There are springs on the moving rods, so when the bottom plate is leveled, the moving rods remain horizontal and can be reset under the action of the springs, so that part of the inhaled gas can be discharged, thereby achieving heat dissipation for the substrate.

[0016] Furthermore, a limit block is provided on one end of the moving rod located outside the bottom plate, and the magnet block is fixed on the limit block.

[0017] Beneficial effect: The limit block can limit the moving rod, thereby preventing the moving rod from sliding into the cavity and being difficult to slide out.

[0018] Furthermore, mounting plates are detachably connected to both sides of the substrate.

[0019] Beneficial effect: When the mounting sheet slides into the mounting groove, relative friction occurs with the mounting groove, thus causing the mounting sheet to be worn. The base plate and the mounting sheet are detachably connected, making it convenient to replace the mounting sheet.

[0020] Furthermore, a rubber buffer layer is provided on one side of the limit block close to the bottom plate.

[0021] Beneficial effect: When the moving rod slides and another moving rod contacts and collides with the bottom plate, the rubber buffer layer can play a buffering role, reduce the vibration of the bottom plate, and at the same time avoid damage to the bottom plate caused by the impact.

[0022] Furthermore, a box body is provided on the frame between the bottom plate and the second rack, a piston is slidably connected in the box body, push rods penetrating the box body and slidingly sealed with the box body are fixed at the top and bottom ends of the piston, the top end of the upper push rod abuts against the bottom plate, and the lower push rod is located above the second rack; air intake and exhaust ports are provided at both ends of the box body, an air intake check valve is provided in the air intake port, an exhaust check valve is provided in the exhaust port, and a Y-shaped pipe is connected to the exhaust port.

[0023] Beneficial effect: When the bottom plate is tilted, one end of the bottom plate will squeeze the upper push rod, causing the push rod to drive the piston to move downward, so that the lower push rod is against the second rack. With the transmission of the first rack, the first gear and the second gear, when the second rack moves, it drives the lower push rod to move upward, so that the piston and the upper push rod move upward, and the bottom plate is moved upward, so as to level the bottom plate. During the reciprocating movement of the piston, the upper and lower parts of the box body intermittently inhale and exhaust, and the exhausted gas is discharged through the Y-shaped tube. By arranging the Y-shaped tube between the bottom plate and the substrate, the gas exhausted from the box body can be blown onto the substrate, so as to cool the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of an embodiment of the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram of the cooperation between the second gear and the second rack. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below through specific embodiments:

[0027] The figure marks in the drawings of the specification include: base plate 1, cavity 11, air inlet 12, air outlet 13, slide plate 14, moving rod 15, limit block 16, mounting plate 2, mounting groove 21, base plate 3, mounting plate 31, vertical rod 4, first rack 41, second rack 42, rotating shaft 43, first gear 431, second gear 432, box body 5, piston 51, push rod 52, air intake port 53, exhaust port 54, Y-shaped tube 6.

[0028] The embodiment is basically as shown in the attached Figure 1 As shown:

[0029] The 3D printing work platform includes a frame, a bottom plate 1 and a base plate 3 installed on the frame, wherein mounting plates 2 are provided on both the left and right sides of the base plate 1, mounting grooves 21 are provided on the opposite sides of the two mounting plates 2, and mounting pieces 31 matching the mounting grooves 21 are fixed on both the left and right sides of the base plate 3. Leveling units are provided on the frame below the left and right ends of the base plate 1, and the two leveling units are symmetrical about the vertical axis of the base plate 1.

[0030] A cavity 11 is provided in the bottom plate 1, and a slide plate 14 is slidably connected in the cavity 11. Moving rods 15 that penetrate the bottom plate 1 and are slidably sealed with the bottom plate 1 are provided at both ends of the left and right ends of the slide plate 14. A spring is sleeved on a section of the moving rod 15 located in the cavity 11; a limit block 16 is provided on the end of the moving rod 15 located outside the bottom plate 1, and a rubber buffer layer is provided on the side of the limit block 16 close to the bottom plate 1, and a magnet block is also provided on the limit block 16.

[0031] The upper surface of the bottom plate 1 is provided with air inlets 12 on both sides of the left and right sides of the slide plate 14, and the lower surface of the bottom plate 1 is provided with air outlets 13 on both sides of the left and right sides of the slide plate 14. The air inlet 12 is provided with an air inlet check valve, and the air outlet 13 is provided with an air outlet check valve. Taking the left cavity 11 as an example, when the pressure of the left cavity 11 decreases, air is inhaled through the air inlet 12; when the pressure of the left cavity 11 increases, gas is discharged through the air outlet 13.

[0032] Taking the leveling unit on the left side as an example, the leveling unit includes a vertical rod 4 hinged on the frame, a first rack 41 slidably connected to the frame laterally, and a second rack 42 slidably connected to the frame vertically. A magnet layer is provided at the top of the vertical rod 4, and the magnetic poles of the magnet layer on the side opposite to the magnet block are the same. The left end of the first rack 41 abuts against the bottom end of the vertical rod 4. The frame is also rotatably connected to a rotating shaft 43, such as Figure 2 As shown, a first gear 431 meshing with the first rack 41 and a second gear 432 meshing with the second rack 42 are fixed on the rotating shaft 43 .

[0033] A box body 5 is also fixed on the frame between the second rack 42 and the bottom plate 1, and a piston 51 is slidably connected in the box body 5. Push rods 52 that penetrate the box body 5 and are slidably sealed with the box body 5 are fixed at both upper and lower ends of the piston 51. The top end of the upper push rod 52 abuts against the bottom of the bottom plate 1, and the lower push rod 52 is located above the second rack 42.

[0034] The upper and lower ends of the box body 5 are provided with an air intake port 53 and an air exhaust port 54, the air intake port 53 is provided with an air intake check valve, and the air exhaust port 54 is provided with an air exhaust check valve; taking the box body 5 at the upper part as an example, when the pressure at the upper part of the box body 5 decreases, the box body 5 inhales air through the upper air intake port 53; when the pressure at the upper part of the box body 5 increases, the box body 5 exhausts air through the upper air exhaust port 54. The frame is also provided with a Y-shaped tube 6, which includes two branch tubes and a junction section, and the two branch tubes are connected to the two exhaust ports 54 respectively.

[0035] The specific implementation process is as follows:

[0036] Before printing, align the mounting piece 31 on the substrate 3 with the mounting groove 21, slide the substrate 3 so that the mounting piece 31 is inserted into the mounting groove 21 to fix the substrate 3; align the air outlet end of the intersection section of the Y-shaped tube 6 with the gap between the substrate 3 and the bottom plate 1, and then use the work platform. During the process of using the work platform for printing, the bottom plate 1 may tilt due to the vibration of the printer. When the left end of the bottom plate 1 tilts downward.

[0037] The left end of the bottom plate 1 will squeeze the push rod 52, so that the push rod 52 drives the piston 51 to move downward, so that the bottom of the push rod 52 at the bottom is against the top of the second rack 42; and the piston 51 moves downward to squeeze the gas at the bottom of the box 5, and is discharged through the Y-shaped tube 6 and blown between the bottom plate 1 and the substrate 3, so that the air between the bottom plate 1 and the substrate 3 flows faster, thereby cooling the substrate 3 with a higher temperature caused by heat during use. At the same time, the moving rod 15 will drive the slide plate 14 to slide to the left under the action of the limit block 16 and its own gravity, thereby squeezing the gas on the left side of the cavity 11, and the right side of the cavity 11 will suck the higher temperature gas between the substrate 3 and the bottom plate 1 into the cavity 11.

[0038] When the moving rod 15 slides to the left, the magnet block will approach the magnet layer at the top of the vertical rod 4, causing the magnet block to repel the magnet layer, thereby causing the upper part of the vertical rod 4 to move to the left, and the vertical rod 4 is hinged on the frame to form a lever structure, so that the lower end of the vertical rod 4 will move to the right. The lower end of the vertical rod 4 pushes the first rack 41 to move to the right, causing the first gear 431 to rotate, and through the transmission of the rotating shaft 43, drives the second gear 432 to rotate, thereby causing the second rack 42 to move up. When the second rack 42 moves up, it drives the push rod 52 that resists it to move up, thereby driving the left end of the bottom plate 1 to move up, and realizing the leveling of the bottom plate 1.

[0039] During the leveling process of the base plate 1, the moving rod 15 gradually remains horizontal. Therefore, under the action of the spring return, the moving rod 15 and the slide plate 14 can be gradually reset, so that the slide plate 14 squeezes the gas on the right side of the cavity 11 and discharges the inhaled gas with a higher temperature into the cavity 11, thereby achieving cooling of the substrate 3.

[0040] For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of this patent and the practicality of the patent.

Claims

1. 3D printing work platform, characterized by: The cam is an axially symmetrical leveling unit, wherein the leveling units include vertical rods hinged on the frame, and a magnet layer is provided on the top of the vertical rods. A first rack is slidably connected to the frame, and a rotating shaft perpendicular to the first rack is rotatably connected to the frame, and a second gear and a first gear meshing with the first rack are fixed on the rotating shaft. A second rack perpendicular to the first rack is also slidably connected to the frame below one end of the base plate, and the second rack meshes with the second gear. A cavity is provided in the base plate, and a slide plate is slidably connected in the cavity, and a moving rod that penetrates the base plate and extends outside the base plate is fixed at both ends of the slide plate, and a magnet block that repels the magnet layer is provided on one end of the moving rod outside the base plate, and a spring is sleeved on one end of the moving rod inside the base plate. An air outlet connected to the cavity is provided at the bottom of the base plate. A box body is provided on the frame between the bottom plate and the second rack, a piston is slidably connected in the box body, push rods penetrating the box body and slidingly sealed with the box body are fixed at the top and bottom ends of the piston, the top end of the upper push rod abuts against the bottom plate, and the lower push rod is located above the second rack; air intake and exhaust ports are provided at both ends of the box body, an air intake check valve is provided in the air intake port, an exhaust check valve is provided in the exhaust port, and a Y-shaped pipe is connected to the exhaust port.

2. The 3D printing work platform according to claim 1, characterized in that: An air inlet communicating with the cavity is arranged at the upper end of the bottom plate, an air inlet one-way valve is arranged in the air inlet, and an air outlet one-way valve is arranged in the air outlet.

3. The 3D printing work platform according to claim 2, characterized in that: A limiting block is arranged on one end of the moving rod outside the bottom plate, and the magnet block is fixed on the limiting block.

4. The 3D printing work platform according to claim 3, characterized in that: The two sides of the base plate are detachably connected with mounting pieces.

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