1. An adjustable printing platform is characterized by comprising an installation platform, a cylinder body, a forming substrate, a piston, an adjusting mechanism and a scraper mechanism;

the mounting platform is connected with the cylinder body, and the piston is located the cylinder body and along cylinder body up-and-down motion, and the mounting platform corresponds the piston in the top of cylinder body and sets up the hole of stepping down, and the shaping base plate passes through adjustment mechanism and piston connection, and adjustment mechanism is used for making the top surface of shaping base plate parallel with the top surface of piston, the top surface of shaping base plate and mounting platform's upper surface parallel and level, scraper mechanism and mounting platform's upper surface connection, and scraper mechanism is used for realizing the shop of printing material and covering and strickleing off.

2. The adjustable printing platform of claim 1, wherein the adjusting mechanism comprises a connecting block, a leveling bolt, a leveling post rod and a rotating worm, the connecting block is connected with the forming substrate, the top surface of the piston is provided with a plurality of blind bolt holes, the top surface of the connecting block is provided with a movable groove, one end of the leveling bolt is a head part, the head part is positioned in the movable groove, the other end of the leveling bolt penetrates through the connecting block to be connected with the blind bolt hole on the piston, the head part of the leveling bolt is a turbine-shaped tooth, the rotating worm is positioned in the movable groove and meshed with the turbine-shaped tooth, the connecting block is provided with a positioning groove along the axial direction of the rotating worm, one end of the positioning groove is communicated with the outside, the other end of the positioning groove is connected with the movable groove, the turbine-shaped tooth is rotated by adjusting the rotating worm, so as to adjust the length of the leveling bolt screwed into the blind bolt hole on the piston, and realize the adjustment of the included angle between the surface of the forming substrate and the surface of the piston, the two ends of the adjusting ejector rod are respectively connected with the connecting block and the piston.

3. The adjustable printing platform of claim 2, wherein the rotating worm is provided with a socket head cap, and wherein a socket head wrench adjusts the rotating worm through a detent.

4. The adjustable printing platform of claim 2, wherein the top surface of the molding substrate is smooth, the bottom surface of the molding substrate is provided with three blind bolt holes, the distribution of the three blind bolt holes is consistent with the distribution of three vertexes of a regular triangle, and the fixing bolt penetrates through the connecting block to be connected with the blind bolt holes on the molding substrate.

5. The adjustable printing platform of claim 2, wherein the top surface of the piston is provided with three blind bolt holes, and the distribution of the three blind bolt holes is consistent with the distribution of three vertexes of a regular triangle.

6. The adjustable printing platform according to claim 2, wherein the cylinder and the piston are coaxially arranged, a threaded blind hole is formed in the axis of the piston, one end of the adjusting ejector rod is connected with the threaded blind hole in the axis of the piston, and the other end of the adjusting ejector rod is connected with the connecting block.

7. The adjustable printing platform of claim 1, wherein a plurality of sealing rings are sleeved on the outer circumference of the piston, and the plurality of sealing rings are respectively abutted against the inner wall of the cylinder body.

8. The adjustable printing platform of claim 1, wherein the scraper mechanism comprises a scraper moving guide rail, a moving block, and a scraper, wherein the scraper moving guide rail is connected to the top surface of the mounting platform, the moving block is slidably connected to the scraper moving guide rail, and the scraper is connected to the moving block.

9. A method of commissioning an adjustable printing platform according to any one of claims 1 to 8, comprising the steps of:

step S1: correcting the levelness of the mounting platform, including the levelness of an X axis and a Y axis, so that the surface of the mounting platform is horizontal;

step S2: a piston is installed and fixed on the lifting mechanism, and can vertically move up and down on the inner surface of the cylinder body;

step S3: controlling the lifting mechanism to lift the piston to enable the top surface of the piston to be higher than the surface of the mounting platform;

step S4: mounting an adjusting mechanism on the piston, mounting the forming substrate on the adjusting mechanism, and adjusting the adjusting mechanism to enable the top surface of the forming substrate to be parallel to the top surface of the piston;

step S5: and controlling the lifting mechanism to enable the piston to descend until the top surface of the forming substrate is flush with the surface of the mounting platform, and finishing leveling.

Background

In recent years, with the rapid development of 3D technology, 3D printing technology is increasingly used in the fields of medicine and tissue engineering. As a new technology, the 3D bio-printing technology directly prints a material-cell integrated scaffold by using mixed 'bio-ink' formed by living cells, extracellular matrix, liquid biological material and the like to construct a complex internal tissue structure. The technology can deposit different types of biological materials accurately in time and space according to requirements, effectively set size parameters such as porosity, pore size and the like while manufacturing any complex-shaped structure, and promote cell proliferation and tissue regeneration.

Unlike traditional metal powder, ceramic slurry, the biomaterials for 3D bioprinting are typically small in volume and expensive. There are many aspects to be improved upon for printing of biomaterials using conventional molded substrates.

Since bioprinting is typically small in volume, the forming area of a bioprinter 3D printer is several times smaller than conventional 3D printing. The traditional forming substrate has holes for installation, and the holes can reduce the forming area of printing and limit the printable area. The traditional printer needs to coat the surface of the forming substrate with a bottom material before printing a workpiece, the coating of the bottom material causes material waste, and the defect is particularly obvious when expensive biological materials are printed.

In addition, the traditional forming substrate is directly and mechanically linked with the piston and does not have the function of leveling, so that the forming substrate and the surface of the mounting platform have larger parallelism error, and the printing precision is reduced.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides an adjustable printing platform which can ensure that a forming substrate is flush with the surface of an installation platform, solve the problem that the existing forming substrate and the surface of the installation platform have larger parallelism error, and improve the printing precision.

Another object of the invention is: a debugging method of the adjustable printing platform is provided.

The technical scheme of the invention is as follows: an adjustable printing platform comprises an installation platform, a cylinder body, a forming substrate, a piston, an adjusting mechanism and a scraper mechanism;

the mounting platform is connected with the cylinder body, and the piston is located the cylinder body and along cylinder body up-and-down motion, and the mounting platform corresponds the piston in the top of cylinder body and sets up the hole of stepping down, and the shaping base plate passes through adjustment mechanism and piston connection, and adjustment mechanism is used for making the top surface of shaping base plate parallel with the top surface of piston, the top surface of shaping base plate and mounting platform's upper surface parallel and level, scraper mechanism and mounting platform's upper surface connection, and scraper mechanism is used for realizing the shop of printing material and covering and strickleing off.

Further, the adjusting mechanism comprises a connecting block, a leveling bolt, a leveling ejector rod and a rotating worm, the connecting block is connected with the forming substrate, the top surface of the piston is provided with a plurality of bolt blind holes, the top surface of the connecting block is provided with a movable groove, one end of the leveling bolt is a head part which is positioned in the movable groove, the other end of the leveling bolt penetrates through the connecting block to be connected with the bolt blind holes on the piston, the head part of the leveling bolt is a turbine-shaped tooth, the rotating worm is positioned in the movable groove and meshed with the turbine-shaped tooth, the connecting block is provided with a positioning groove along the axial direction of the rotating worm, one end of the positioning groove is communicated with the outside, the other end of the positioning groove is connected with the movable groove, the turbine-shaped tooth is rotated by adjusting the rotating worm, thereby adjust the length that leveling screw rod screwed the bolt blind hole on the piston, realize the regulation of the contained angle between shaping base plate surface and the piston surface, adjust the both ends of ejector pin and be connected with connecting block and piston respectively.

Furthermore, the rotating worm is provided with an inner hexagonal hole, and an inner hexagonal wrench penetrates through the positioning groove to adjust the rotating worm.

Furthermore, the top surface of the forming substrate is smoothly arranged, the bottom surface of the forming substrate is provided with three bolt blind holes, the distribution of the three bolt blind holes is consistent with that of three vertexes of the regular triangle, and the fixing bolt penetrates through the connecting block to be connected with the bolt blind holes in the forming substrate.

Furthermore, the top surface of the piston is provided with three bolt blind holes, and the distribution of the three bolt blind holes is consistent with that of three vertexes of the regular triangle.

Furthermore, the cylinder body and the piston are coaxially arranged, a threaded blind hole is formed in the axis of the piston, one end of the adjusting ejector rod is connected with the threaded blind hole in the axis of the piston, and the other end of the adjusting ejector rod is connected with the connecting block. The axial displacement of the connecting plate is limited by adjusting the ejector rod to prop against the piston and the connecting plate.

Further, a plurality of sealing rings are established to the periphery cover of piston, and a plurality of sealing rings butt the inner wall of cylinder body respectively. When preventing the piston motion through setting up the sealing washer, the thick liquids in the cylinder body are revealed and are prevented external foreign matter entering.

Further, the scraper mechanism comprises a scraper moving guide rail, a moving block and a scraper, the scraper moving guide rail is connected with the top surface of the mounting platform, the moving block is connected with the scraper moving guide rail in a sliding mode, and the scraper is connected with the moving block.

Another technical solution of the present invention is a debugging method of the adjustable printing platform, including the following steps:

step S1: correcting the levelness of the mounting platform, including the levelness of an X axis and a Y axis, so that the surface of the mounting platform is horizontal;

step S2: a piston is installed and fixed on the lifting mechanism, and can vertically move up and down on the inner surface of the cylinder body;

step S3: controlling the lifting mechanism to lift the piston to enable the top surface of the piston to be higher than the surface of the mounting platform;

step S4: mounting an adjusting mechanism on the piston, mounting the forming substrate on the adjusting mechanism, and adjusting the adjusting mechanism to enable the top surface of the forming substrate to be parallel to the top surface of the piston;

step S5: and controlling the lifting mechanism to enable the piston to descend until the top surface of the forming substrate is flush with the surface of the mounting platform, and finishing leveling.

Compared with the prior art, the invention has the following beneficial effects:

according to the adjustable printing platform, the forming substrate with the bolt blind holes arranged below is fixed to the connecting mechanism, so that no holes are formed in the upper surface of the forming substrate, the influence of the holes in the surface of the forming substrate on the forming area is eliminated, the printable area of equipment is increased, and the printing efficiency of the equipment and the utilization rate of materials are improved.

According to the adjustable printing platform, the rotating worm and the leveling bolt are adjusted, so that the forming substrate and the mounting surface can be ensured to have certain parallelism, and the printing precision is improved.

Drawings

FIG. 1 is a schematic structural diagram of an adjustable printing platform according to the present invention.

Fig. 2 is a schematic view of the assembly of the adjustment structure of the present invention with a piston.

The device comprises an installation platform 1, a cylinder 2, a molding base plate 3, a piston 4, a sealing ring 5, a connecting block 61, a leveling bolt 62, a leveling ejector rod 63, a rotating worm 64, a movable groove 65, a positioning groove 66, a fixing bolt 67, a scraper moving guide rail 71, a moving block 72 and a scraper 73.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Examples

As shown in fig. 1 and 2, the present embodiment provides an adjustable printing platform, which includes a mounting platform 1, a cylinder 2, a forming substrate 3, a piston 4, an adjusting mechanism, and a scraper mechanism.

As shown in fig. 1 and 2, mounting platform is connected with the cylinder body, and the piston is located the cylinder body and along cylinder body up-and-down motion, and the cylinder body sets up with the axle center with the piston, and a plurality of sealing washer 5 are established to the periphery cover of piston, and a plurality of sealing washers butt inner wall of cylinder body respectively, elevating system drive piston perpendicular up-and-down motion in the cylinder body, and mounting platform corresponds the piston in the top of cylinder body and sets up the hole of stepping down.

As shown in fig. 1 and 2, the adjusting mechanism includes a connecting block 61, a leveling bolt 62, a leveling ejector rod 63 and a rotating worm 64, the connecting block is connected with the forming substrate, the top surface of the piston is provided with a plurality of bolt blind holes, the top surface of the connecting block is provided with a movable groove 65, one end of the leveling bolt is a head, the head is located in the movable groove, the other end of the leveling bolt penetrates through the connecting block to be connected with the bolt blind hole on the piston, the head of the leveling bolt is turbine-shaped teeth, the rotating worm is located in the movable groove and meshed with the turbine-shaped teeth, the connecting block is provided with a positioning groove 66 along the axial direction of the rotating worm, one end of the positioning groove is communicated with the outside, the other end of the positioning groove is connected with the movable groove, and the radial displacement of the axial displacement of the rotating worm is limited by a limiting groove and the lower surface of the forming substrate, so that the rotating worm can only rotate. In this embodiment, the rotating worm is provided with a hexagon socket, and the hexagon socket wrench passes through the positioning slot to adjust the rotating worm. The worm wheel-shaped teeth rotate by adjusting the rotating worm, so that the length of the leveling screw screwed into the bolt blind hole on the piston is adjusted, and the adjustment of the included angle between the surface of the forming substrate and the surface of the piston is realized.

As shown in fig. 1 and fig. 2, in the present embodiment, the top surface of the forming substrate is smoothly disposed, the bottom surface of the forming substrate is provided with three blind bolt holes, the distribution of the blind bolt holes is consistent with the distribution of three vertexes of a regular triangle, the fixing bolt 67 penetrates through the connecting block to be connected with the blind bolt holes on the forming substrate, the top surface of the piston is provided with three blind bolt holes, and the distribution of the blind bolt holes is consistent with the distribution of three vertexes of a regular triangle.

The axle center of the piston is provided with a threaded blind hole, one end of the adjusting ejector rod is connected with the threaded blind hole at the axle center of the piston, and the other end of the adjusting ejector rod is connected with the connecting block.

As shown in fig. 1 and 2, the scraper mechanism includes a scraper moving rail 71 connected to the top surface of the mounting platform, a moving block 72 connected to the scraper moving rail in a sliding manner, and a scraper 73 connected to the moving block, and the scraper mechanism is used to spread and strike the printing material.

The debugging method of the adjustable printing platform comprises the following steps:

step S1: correcting the levelness of the mounting platform, including the levelness of an X axis and a Y axis, so that the surface of the mounting platform is horizontal;

step S2: a piston is installed and fixed on the lifting mechanism, and can vertically move up and down on the inner surface of the cylinder body;

step S3: controlling the lifting mechanism to lift the piston to enable the top surface of the piston to be higher than the surface of the mounting platform;

step S4: mounting an adjusting mechanism on a piston, mounting a leveling bolt and a rotating worm into a movable groove, and mounting a leveling ejector rod at the axis of a connecting block;

be connected forming substrate and connecting block again, adjust adjustment mechanism and make forming substrate's top surface parallel with the top surface of piston, specifically do: correcting levelness of any two leveling bolts on the surface of the forming substrate in the linear direction, placing a level meter in the linear direction of any two leveling bolts, enabling the forming substrate to be level in the linear direction of any selected two leveling bolts by loosening and tightening the two leveling bolts, repeating the steps to enable any two leveling bolts on the forming substrate to be level in the linear direction, and continuously measuring for multiple times until the levelness in any selected direction is measured to be 0;

step S5: and controlling the lifting mechanism to enable the piston to descend until the top surface of the forming substrate is flush with the surface of the mounting platform, and finishing leveling.

As mentioned above, the present invention can be better realized, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present disclosure are intended to be covered by the scope of the claims of the present invention.