CN210634128U - Photocuring 3D printer automatic material conveying device - Google Patents
Photocuring 3D printer automatic material conveying device Download PDFInfo
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- CN210634128U CN210634128U CN201920904735.5U CN201920904735U CN210634128U CN 210634128 U CN210634128 U CN 210634128U CN 201920904735 U CN201920904735 U CN 201920904735U CN 210634128 U CN210634128 U CN 210634128U
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Abstract
The utility model discloses an automatic feeding device of a photocuring 3D printer, which relates to the technical field of 3D printing, and comprises a liquid material box and an automatic feeding device arranged at the side part of the liquid material box, wherein the automatic feeding device is rotationally connected with the liquid material box and rotates at the side part of the liquid material box, the automatic feeding device comprises a consumable bottle and an automatic compensation device, consumable materials are contained in the consumable bottle, the consumable materials flow into the liquid material box through the automatic compensation device, an elastic part is arranged in the automatic compensation device, an ejection part is arranged at the position of the liquid material box and is used for lifting the position of the elastic part in the automatic compensation device, so that the consumable materials flow through the automatic compensation device and enter the liquid material box, the utility model adopts the mechanical principle, utilizes the natural pressure of atmospheric pressure, adopts a specially designed self-compensation bottle cap, self-compensation of consumables is realized.
Description
Technical Field
The utility model relates to a 3D prints technical field, concretely relates to photocuring 3D printer automatic material conveying device.
Background
The selective area curing and forming technology for light cured liquid resin includes mainly the following steps: laser scanning imaging light curing principle (SLA), projector imaging irradiation molding technology (DLP), and display screen imaging ultraviolet spectrum light curing technology (LCD). The existing LCD photocuring principle is as follows: by utilizing the Liquid Crystal Display (LCD) imaging principle, under the control of a computer and a screen driving circuit, a computer program provides an image model, a selective black-white area appears on a liquid crystal screen, white is a light-transmitting area, black is an opaque area, under the irradiation of a light source (generally high-frequency ultraviolet light with larger radiation energy), the light-transmitting area of the liquid crystal screen has small obstruction to ultraviolet light, the ultraviolet light can penetrate through, in the opaque area, the ultraviolet light is blocked, and the ultraviolet light penetrating through the liquid crystal screen forms an ultraviolet light image area. A light-cured liquid resin groove is arranged on the surface of the liquid crystal screen, a transparent film is arranged at the bottom of the groove, ultraviolet light irradiates the liquid light-cured resin through the transparent film, the resin irradiated by the ultraviolet light is cured and reflected, and the irradiated liquid resin becomes a solid state. The opaque portion of the liquid crystal screen blocks ultraviolet light. The liquid light-curing resin of the shielded part is not irradiated by ultraviolet rays, and the part of the resin which is not irradiated still keeps liquid. The cured resin is the molded part of the product that we make with the printer.
In the photocuring equipment printing process, have a certain amount of consumptive material all the time in the consumptive material box, just can satisfy and print in-process forming platform can immerse in the consumptive material of liquid material box, guarantee to print in-process liquid material box bottom and have the consumptive material can solidify all the time, because consumptive material box volume is limited, when printing some bigger models, the consumptive material lacks very easily, causes the printing product failure, has both wasted the material, has also wasted the time.
SUMMERY OF THE UTILITY MODEL
According to the not enough of above prior art, the utility model aims to solve the technical problem that a photocuring 3D printer automatic material conveying device is proposed, adopts mechanical principle, utilizes the natural pressure of atmospheric pressure, adopts special design's self-compensating bottle lid, realizes the self-compensation of consumptive material.
The utility model provides a photocuring 3D printer automatic material conveying device, is in including liquid material box and setting the automatic material conveying device of liquid material box lateral part, automatic material conveying device with the liquid material box rotates to be connected, and automatic material conveying device rotates in liquid material box lateral part, and automatic material conveying device includes consumptive material bottle and automatic compensation device, has held the consumptive material in the consumptive material bottle, the consumptive material passes through in the automatic compensation device flows into the liquid material box, be equipped with the elastic component in the automatic compensation device, liquid material box department is equipped with the liftout piece, the liftout piece is used for the lifting the elastic component is in the automatic compensation device internal position, makes the consumptive material flow through in the automatic compensation device enters into the liquid material box.
Optionally, the liquid material box is installed on the liquid material box placing platform, and the liquid material box is provided with a containing cavity for containing the consumable.
Optionally, the automatic compensation device includes rotary device and self-compensating bottle lid, rotary device includes consumptive material bottle support, spring hinge and consumptive material bottle base, consumptive material bottle base one end is installed on the liquid magazine place the platform and be close to the liquid magazine sets up, and the other end passes through the spring hinge with consumptive material bottle leg joint, consumptive material bottle support are including borduring, backup pad and perforation, backup pad central point puts and has seted up the perforation, and the outer border department of backup pad is equipped with borduring, borduring extends on the axial direction of backup pad, consumptive material bottle with the connection can be dismantled to the self-compensating bottle lid, is equipped with in the self-compensating bottle lid the elastic component, after the self-compensating bottle lid was installed to the consumptive material bottle, the self-compensating bottle lid passed the perforation, and the.
Optionally, the spring hinge is provided with a limiting blocking piece for limiting the rotation angle of the spring hinge.
Optionally, a liquid supplementing box is arranged on the liquid box and provided with a liquid supplementing cavity, the liquid supplementing cavity is communicated with the containing cavity, the bottom surface of the liquid supplementing box is flush, an inner step is arranged in the liquid supplementing box and higher than the bottom surface of the liquid supplementing cavity, the ejector piece is arranged on the inner step, and the ejector piece is protruding outwards.
Optionally, the self-compensating bottle cap comprises a main cap body, an internal thread is arranged at one end of the main cap body, an external thread matched with the internal thread is arranged at one end of the consumable bottle, a contact cap body is arranged at the other end of the main cap body, the elastic piece is arranged in the contact cap body and comprises a reset spring and an ejector rod, the ejector rod penetrates through the main cap body and slides in the main cap body, the spring is arranged on the periphery of the ejector rod, one end of the spring is fixed to the ejector rod, and the other end of the spring is fixed to the inner wall of.
Optionally, the contact lid to the internal sunken platform that takes of main lid, take the platform and be equipped with the lock cap towards the inside one side of main lid, the one end that the ejector pin runs through into main lid is equipped with the pole head of point form, the outside cladding of pole head has the lock cap, drives the lock cap and takes the platform separation or contact in the ejector pin motion process, and the border and the platform of lock cap form sealedly.
Optionally, the contact cover body is provided with air holes.
The utility model has the advantages that: adopt mechanical principle, be different from complicated loaded down with trivial details sensing structure, utilize the natural pressure of atmospheric pressure, adopt special design's self-compensating bottle lid, realize in the consumptive material bottle in the consumptive material can flow into in the liquid magazine constantly, guarantee that the consumptive material in the liquid magazine is at certain height all the time, realize the self-compensating of consumptive material, can not cause the consumptive material reduction in the consumptive material box, on the other hand, liquid magazine and consumptive material bottle are in same space, can not lead to mixing inhomogeneous because of the consumptive material temperature is different, thereby influence print quality.
Drawings
Fig. 1 and 2 are exploded views of different views of an embodiment of the present invention;
fig. 3 is a front view of a self-compensating bottle cap according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic structural view of a fluid infusion box according to an embodiment of the present invention;
fig. 6 and 7 are schematic views of the present invention in two different use states.
The consumable material bottle comprises a consumable material bottle 1, a self-compensating bottle cap 2, a main cover body 21, a contact cover body 22, a spring 23, a mandril 24, a platform 25, a locking cap 26, air holes 27, a consumable material bottle support 3, a limiting baffle 4, a consumable material bottle base 5, a spring hinge 5, a consumable material bottle base 6, a liquid material box 7, a liquid replenishing box 71, an inner step 72, an ejector 73 and a liquid material box placing platform 8.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As an embodiment, the utility model provides a photocuring 3D printer automatic material conveying device, be in including liquid material box and setting the automatic material conveying device of liquid material box lateral part, automatic material conveying device with the liquid material box rotates to be connected, and automatic material conveying device rotates in liquid material box lateral part, and automatic material conveying device includes consumptive material bottle and automatic compensation device, has held the consumptive material in the consumptive material bottle, the consumptive material passes through in the automatic compensation device flows into the liquid material box, be equipped with the elastic component in the automatic compensation device, liquid material box department is equipped with the liftout, the liftout is used for the lifting the elastic component is in the automatic compensation device internal position, makes the consumptive material flows through automatic compensation device enters into in the liquid material box.
Through the design of this automatic material conveying device, adopt mechanical principle, be different from complicated loaded down with trivial details sensing structure, utilize the natural pressure of atmospheric pressure, adopt special design's self-compensating bottle lid, realize in the consumptive material of consumptive material bottle can constantly flow into in the liquid magazine, guarantee that the consumptive material in the liquid magazine is at certain height all the time, realize the self-compensation of consumptive material, can not cause the consumptive material reduction in the consumptive material box, on the other hand, liquid magazine and consumptive material bottle are in same space, can not lead to mixing inhomogeneous because of the consumptive material temperature is different, thereby influence printing quality.
The following describes the preferred embodiments of the present invention in detail.
The existing 3D printing equipment generally only has one liquid material box with a small volume, the volume is limited, consumables are required to be added manually sometimes in the printing process, and the temperature of the consumables in the liquid material box is different from that of external consumables, so that the consumables cannot be well compatible when being mixed together, flaws are easily caused in the printing process, and the printing quality is influenced; moreover, the manual addition of consumables cannot accurately grasp the amount, and the printing stability cannot be ensured.
Please refer to fig. 1 and 2, the utility model discloses a photocuring 3D printer automatic material conveying device, this automatic material conveying device, including liquid material box 7 and the automatic material conveying device of setting at 7 lateral parts of liquid material box, liquid material box 7 is installed on liquid material box place the platform 8, liquid material box 7 has the chamber that holds the consumptive material, automatic material conveying device rotates with liquid material box 7 to be connected, automatic material conveying device rotates at 7 lateral parts of liquid material box, automatic material conveying device includes consumptive material bottle 1 and automatic compensation device, the consumptive material has been held in the consumptive material bottle 1, the consumptive material flows in liquid material box 7 through automatic compensation device, be equipped with the elastic component in the automatic compensation device, liquid material box 7 department is equipped with liftout piece 73, liftout piece 73 is used for lifting elastic component position in the automatic compensation device, make the consumptive material flow through automatic compensation device and enter into in the liquid material box 7.
Automatic compensation arrangement includes rotary device and self-compensating bottle lid 2, and rotary device includes consumptive material bottle support 3, spring hinge 5 and consumptive material bottle base 6, and 6 one end of consumptive material bottle base are installed on liquid material box place the platform 8 and are close to liquid material box 7 setting, and the other end passes through spring hinge 5 and is connected with consumptive material bottle support 3, is equipped with limiting stop piece 4 of 5 turned angles of restriction spring hinge 5 on the spring hinge 5. Consumable bottle support 3 is including borduring, backup pad and perforation, backup pad central point puts and has seted up the perforation, the outer border department of backup pad is equipped with bordures, it extends on the axial direction of backup pad to bordure, consumable bottle 1 can dismantle with self-compensating bottle lid 2 and be connected, be equipped with the elastic component in the self-compensating bottle lid 2, self-compensating bottle lid 2 is installed after self-compensating bottle lid 2, self-compensating bottle lid 2 passes the perforation, consumable bottle 1 is placed in the backup pad, when consumable bottle 1 is placed in the backup pad, bordure and strengthened the supporting effect to consumable bottle 1, the rethread is to the accurate design of perforation size, make the perforation just enough pass self-compensating bottle lid 2, it can not take place easily in consumable bottle support 3 departments to rock to bordure the cooperation like.
Referring to fig. 3 and 4, the self-compensating bottle cap 2 includes a main cap body 21, one end of the main cap body 21 is provided with an internal thread, one end of the consumable bottle 1 is provided with an external thread matched with the internal thread, the other end of the main cap body 21 is provided with a contact cap body 22, the contact cap body 22 is provided with a vent hole 27, the contact cap body 22 is recessed into the main cap body 21 to form a landing 25, one side of the landing 25 facing the inside of the main cap body 21 is provided with a locking cap 26, the contact cap body 22 is internally provided with an elastic member, the elastic member includes a return spring 23 and a push rod 24, the push rod 24 penetrates through the main cap body 21 and slides in the main cap body 21, one end of the push rod 24 penetrating into the main cap body 21 is provided with a pointed rod head, the outside of the rod head is coated with the locking cap 26, the push rod 24 drives the locking cap. The periphery of the ejector rod 24 is provided with a spring 23, one end of the spring 23 is fixed with the ejector rod 24, and the other end is fixed with the inner wall of the contact cover body 22.
Referring to fig. 5, a fluid replenishing box 71 is disposed on the fluid box 7, the fluid replenishing box 71 has a fluid replenishing cavity, the fluid replenishing cavity is communicated with the accommodating cavity, and the bottom surface of the fluid replenishing cavity is flush, an inner step 72 is disposed in the fluid replenishing box 71, the inner step 72 is higher than the bottom surface of the fluid replenishing cavity, an ejector 73 is disposed on the inner step 72, and the ejector 73 is an outer protrusion. When the consumable bottle 1 rotates by means of the rotating device, the edge of the contact cover body 22 far away from the main cover body 21 is in contact with the inner step 72, the ejection piece 73 is also in direct contact with and extrudes the elastic piece, the ejection rod 24 extrudes the spring 23 to overcome the elastic coefficient of the spring 23 to move upwards, the ejection rod 24 drives the lock cap 26 to be separated from the abutment 25 at the moment, the outside air can enter the main object 21 through the contact shell body 22, the atmosphere pressure is applied to the consumable bottle, the consumable in the consumable bottle 1 can also flow out through the self-compensation bottle cap 2 and enter the fluid infusion box 71, and then the consumable bottle enters the accommodating cavity along the inner step 72.
Referring to fig. 6, when the printing is finished or the consumable is not required to be added during empty space, the supporting plate of the consumable bottle holder 3 is in a vertical state. If placed consumptive material bottle 1 before, liftout 73 and elastic component separation, ejector pin 1 downstream under the effect of spring 23, drive lock cap 26 and the contact of take platform 25 continue to seal up the main lid 21 of self-compensating bottle lid 2, and the consumptive material in the consumptive material bottle 1 can not empty and spill, can take off consumptive material bottle 1 this time, and consumptive material bottle support 3 is under spring hinge 5's effect, and automatic bounces, the occupation inner space that can not be more than.
When the consumable bottle 1 is taken down, no matter what kind of state the consumable bottle 1 is in, even if the consumable bottle 1 is inverted, the self-compensating bottle cap 2 faces downwards, the self-compensating bottle cap is sealed by the action of the elastic part 2, and the consumable in the consumable bottle 1 can not be toppled over and leaked
Referring to fig. 7, when the consumable material needs to be added in preparation for printing or during printing, the supporting plate of the consumable bottle holder 3 is in a horizontal state. The border that contacts lid 22 and keep away from main lid 21 can contact this moment liftout 73 also can direct contact and extrusion elastic component with interior step 72, ejector pin 24 extrusion spring 23 overcomes the elastic coefficient upward movement of spring 23, ejector pin 24 drives locking cap 26 and takes the platform 25 separation this moment, external air alright in entering into the subject object 21 via contact casing 22, receive the effect of atmospheric pressure, the consumptive material in the consumptive material bottle 1 also can flow out via self-compensating bottle lid 2, enter into in fluid infusion box 71, then enter into along interior step 72 and hold the intracavity. When the consumptive material liquid level in liquid material box 7 does not cross bleeder vent 27, the bleeder vent is plugged up to the consumptive material, the air just can not enter into consumptive material bottle 1 in, the inside consumptive material of consumptive material bottle 1 can not flow down yet, at the in-process of continuous printing, the consumptive material in the liquid material box 7 is along with the in-process of using constantly the back that descends, the consumptive material liquid level reduces bleeder vent 27 below again, the air just enters into in the consumptive material bottle 1 again, the consumptive material continues to flow, the circulation that reciprocates like this, can guarantee throughout that the consumptive material in liquid material box 7 is in more full state relatively, can not lead to printing failure because the consumpti.
To sum up, the utility model has the advantages that: adopt mechanical principle, be different from complicated loaded down with trivial details sensing structure, utilize the natural pressure of atmospheric pressure, adopt special design's self-compensating bottle lid, realize in the consumptive material bottle in the consumptive material can flow into in the liquid magazine constantly, guarantee that the consumptive material in the liquid magazine is at certain height all the time, realize the self-compensating of consumptive material, can not cause the consumptive material reduction in the consumptive material box, on the other hand, liquid magazine and consumptive material bottle are in same space, can not lead to mixing inhomogeneous because of the consumptive material temperature is different, thereby influence print quality.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (8)
1. The utility model provides a photocuring 3D printer automatic material conveying device, includes liquid magazine (7) and sets up the automatic material conveying device of liquid magazine (7) lateral part, its characterized in that: automatic material conveying device with liquid magazine (7) rotate to be connected, and automatic material conveying device rotates at liquid magazine (7) lateral part, and automatic material conveying device includes consumptive material bottle (1) and automatic compensation device, has held the consumptive material in the consumptive material bottle (1), the consumptive material passes through automatic compensation device flows in liquid magazine (7), be equipped with the elastic component in the automatic compensation device, liquid magazine (7) department is equipped with liftout piece (73), liftout piece (73) are used for the lifting the elastic component is in automatic compensation device internal position, makes the consumptive material flows through automatic compensation device enters into in liquid magazine (7).
2. The automatic feeding device of the photocuring 3D printer of claim 1, characterized in that: the liquid material box (7) is installed on the liquid material box placing platform (8), and the liquid material box (7) is provided with a containing cavity for containing consumables.
3. The automatic feeding device of the photocuring 3D printer of claim 2, characterized in that: the automatic compensation device comprises a rotation device and a self-compensation bottle cap (2), the rotation device comprises a consumable bottle support (3), a spring hinge (5) and a consumable bottle base (6), one end of the consumable bottle base (6) is installed on the liquid material box placing platform (8) and is close to the liquid material box (7), the other end of the consumable bottle base is connected with the consumable bottle support (3) through the spring hinge (5), the consumable bottle support (3) comprises a wrapping edge, a support plate and a through hole, the through hole is formed in the center of the support plate, the wrapping edge is arranged at the outer edge of the support plate and extends in the axial direction of the support plate, the consumable bottle (1) is detachably connected with the self-compensation bottle cap (2), the elastic part is arranged in the self-compensation bottle cap (2), and the self-compensation bottle cap (2) passes through the through hole after the consumable bottle (1) is installed on the self-compensation bottle cap (2, the consumable bottle (1) is placed on the supporting plate.
4. The automatic feeding device of a photocuring 3D printer of claim 3, characterized in that: and the spring hinge (5) is provided with a limiting baffle (4) for limiting the rotation angle of the spring hinge (5).
5. The automatic feeding device of the photocuring 3D printer of claim 4, characterized in that: be equipped with fluid infusion box (71) on liquid box (7), fluid infusion box (71) have the fluid infusion chamber, the fluid infusion chamber with hold the chamber and be linked together and the bottom surface is in the state of flushing, be equipped with interior step (72) in fluid infusion box (71), interior step (72) are higher than the bottom surface in fluid infusion chamber, are equipped with on interior step (72) ejector member (73), ejector member (73) are outer protruding.
6. The automatic feeding device of a photocuring 3D printer of claim 5, characterized in that: self-compensating bottle lid (2) are including main lid (21), main lid (21) one end is equipped with the internal thread, the one end of consumptive material bottle (1) be equipped with internal thread screw-thread fit's external screw thread, main lid (21) other end are equipped with contact lid (22), be equipped with in contact lid (22) elastic component, elastic component include reset spring (23) and ejector pin (24), ejector pin (24) run through main lid (21) and slide in main lid (21), and ejector pin (24) periphery is equipped with spring (23), spring (23) one end are fixed with ejector pin (24), and the other end is fixed with contact lid (22) inner wall.
7. The automatic feeding device of the photocuring 3D printer of claim 6, characterized in that: contact lid (22) to sunken formation platform (25) in main lid (21), platform (25) are taken towards one side of main lid (21) inside and are equipped with lock cap (26), ejector pin (24) run through the one end that enters main lid (21) and are equipped with the pole head of point form, the outside cladding of pole head has lock cap (26), ejector pin (24) motion in-process drive lock cap (26) and take platform (25) separation or contact, the border and the platform (25) formation of taking of lock cap (26) are sealed.
8. The automatic feeding device of a photocuring 3D printer of claim 7, characterized in that: the contact cover body (22) is provided with air holes (27).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920904735.5U CN210634128U (en) | 2019-06-17 | 2019-06-17 | Photocuring 3D printer automatic material conveying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920904735.5U CN210634128U (en) | 2019-06-17 | 2019-06-17 | Photocuring 3D printer automatic material conveying device |
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| CN210634128U true CN210634128U (en) | 2020-05-29 |
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| CN201920904735.5U Active CN210634128U (en) | 2019-06-17 | 2019-06-17 | Photocuring 3D printer automatic material conveying device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265264A (en) * | 2020-11-10 | 2021-01-26 | 深圳市智能派科技有限公司 | Automatic feeding device of photocuring 3D printer |
| CN112810143A (en) * | 2020-12-31 | 2021-05-18 | 深圳新致美精密齿研有限公司 | 3D printing process and 3D printer for metal denture |
| CN113370525A (en) * | 2021-05-21 | 2021-09-10 | 深圳市创想三维科技有限公司 | 3D prints feed arrangement and 3D printer |
| CN113665115A (en) * | 2021-08-24 | 2021-11-19 | 程永阔 | Photocuring 3D printer |
| CN114506078A (en) * | 2022-04-20 | 2022-05-17 | 徐州瑞缔新材料科技有限公司 | Photocuring 3D printer |
| CN114953449A (en) * | 2022-05-24 | 2022-08-30 | 先临三维科技股份有限公司 | Automatic material device and printing equipment of annotating of printing equipment |
| CN115625887A (en) * | 2022-10-31 | 2023-01-20 | 广州黑格智造信息科技有限公司 | Three-dimensional printing equipment, three-dimensional printing method and zero searching control method |
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- 2019-06-17 CN CN201920904735.5U patent/CN210634128U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265264A (en) * | 2020-11-10 | 2021-01-26 | 深圳市智能派科技有限公司 | Automatic feeding device of photocuring 3D printer |
| CN112810143A (en) * | 2020-12-31 | 2021-05-18 | 深圳新致美精密齿研有限公司 | 3D printing process and 3D printer for metal denture |
| CN112810143B (en) * | 2020-12-31 | 2022-03-18 | 深圳新致美精密齿研有限公司 | 3D printing process and 3D printer for photosensitive resin false tooth |
| CN113370525A (en) * | 2021-05-21 | 2021-09-10 | 深圳市创想三维科技有限公司 | 3D prints feed arrangement and 3D printer |
| CN113665115A (en) * | 2021-08-24 | 2021-11-19 | 程永阔 | Photocuring 3D printer |
| CN113665115B (en) * | 2021-08-24 | 2024-03-22 | 广州精德化学材料有限公司 | Photocuring 3D printer |
| CN114506078A (en) * | 2022-04-20 | 2022-05-17 | 徐州瑞缔新材料科技有限公司 | Photocuring 3D printer |
| CN114506078B (en) * | 2022-04-20 | 2022-07-01 | 徐州瑞缔新材料科技有限公司 | Photocuring 3D printer |
| CN114953449A (en) * | 2022-05-24 | 2022-08-30 | 先临三维科技股份有限公司 | Automatic material device and printing equipment of annotating of printing equipment |
| CN114953449B (en) * | 2022-05-24 | 2024-01-19 | 先临三维科技股份有限公司 | Automatic material injection device of printing equipment and printing equipment |
| CN115625887A (en) * | 2022-10-31 | 2023-01-20 | 广州黑格智造信息科技有限公司 | Three-dimensional printing equipment, three-dimensional printing method and zero searching control method |
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