CN217144924U - Be used for many materials 3D to print belt cleaning device - Google Patents

Abstract

The utility model provides a be used for many materials 3D to print belt cleaning device, the device includes: the printing system comprises a base, a printing platform unit and a cleaning and air-drying unit; the cleaning and air-drying unit comprises a cleaning box unit, a cleaning box rotary switching mechanism, an air outlet plate and an air outlet plate rotary driving mechanism; the cleaning box rotating switching mechanism is connected with the cleaning box unit and is used for rotating the cleaning box unit to be right below the printing platform; the air outlet plate rotation driving mechanism is connected with the air outlet plate and used for driving the air outlet plate to horizontally rotate. Adopt rotatory switching mode to realize drying the control of device to the washing, print platform rigidity is motionless at whole 3D printing and washing air-dry in-process to help improving print platform's printing precision. In addition, the cleaning and air-drying device integrates two functions of cleaning and air-drying, has various functions, and can be used for air-drying after cleaning the printed piece, so that the printed materials can not be polluted mutually in the execution process of the printing task, and the quality of the printed products can be ensured.

Description

Be used for many materials 3D to print belt cleaning device

Technical Field

The utility model belongs to the technical field of 3D prints, concretely relates to be used for many materials 3D to print belt cleaning device.

Background

The 3D printing mode at the present stage mainly comprises the following steps: after the 3D printing of the part is finished, the part is immersed in the cleaning box, the part is cleaned, and the printing residual material on the surface of the part is removed. The cleaning box designed by the mode is a conventional cleaning box, the cleaning frequency is low in single work, and the cleaning target mostly takes resin as the main component without particle deposition.

Above washing box, the function is single to, for 3D printing apparatus, be an independent washing box, can't be applicable to the switching between the different materials of multiple material 3D printing in-process and print the clearance.

SUMMERY OF THE UTILITY MODEL

The defect to prior art exists, the utility model provides a be used for many materials 3D to print belt cleaning device can effectively solve above-mentioned problem.

The utility model adopts the technical scheme as follows:

the utility model provides a be used for many materials 3D to print belt cleaning device, include: the printing equipment comprises a base (100), a printing platform unit (200) and a cleaning and air-drying unit (600);

the printing platform unit (200) is fixedly arranged above the base (100); the printing platform unit (200) comprises a platform lifting mechanism (201) and a printing platform (202); the platform lifting mechanism (201) is a ball screw lifting mechanism;

the cleaning and air-drying unit (600) comprises a cleaning box unit, a cleaning box rotary switching mechanism, an air outlet plate (606) and an air outlet plate rotary driving mechanism; the cleaning box rotary switching mechanism is connected with the cleaning box unit and is used for rotating the cleaning box unit to be right below the printing platform (202); the air outlet plate rotation driving mechanism is connected with the air outlet plate (606) and is used for driving the air outlet plate (606) to horizontally rotate; the air outlet plate (606) is positioned above the cleaning box unit.

Preferably, the platform lifting mechanism (201) is a ball screw lifting mechanism, comprising: the device comprises a lifting motor (2011), a screw rod (2012), a slider (2013), an upper limit switch (2014) and a lower limit switch (2015);

the screw rod (2012) is vertically arranged; the sliding block (2013) is sleeved and mounted on the screw rod (2012); the printing platform (202) which is horizontally arranged is fixedly arranged outside the sliding block (2013); the lifting motor (2011) is used for driving the screw rod (2012) to rotate; the upper limit switch (2014) and the lower limit switch (2015) are respectively installed at the upper limit position and the lower limit position where the sliding block (2013) slides.

Preferably, also comprises n cartridges (505);

n cartridges (505) and one cleaning cartridge unit are annularly arranged; the material box (505) and the cleaning box unit are connected with the cleaning box rotary switching mechanism.

Preferably, a spreading scraping piece (404) is uniquely and correspondingly arranged above each material box (505); the spreading material scraping piece (404) and the air outlet plate (606) are connected to the air outlet plate rotation driving mechanism.

The utility model provides a pair of be used for many materials 3D to print belt cleaning device has following advantage:

adopt rotatory switching mode to realize drying the control of device to the washing, print platform rigidity is motionless at whole 3D printing and washing air-dry in-process to help improving print platform's printing precision. In addition, the cleaning and air-drying device integrates two functions of cleaning and air-drying, has various functions, and can be used for air-drying after cleaning the printed piece, so that the printed materials can not be polluted mutually in the execution process of the printing task, and the quality of the printed products can be ensured.

Drawings

Fig. 1 is an overall schematic view of the cleaning device for multi-material 3D printing provided by the present invention;

FIG. 2 is a block diagram of a cleaning unit according to the present invention;

FIG. 3 is a block diagram of a vacuole generator provided by the present invention;

fig. 4 is a structural diagram of the air outlet plate provided by the utility model.

Fig. 5 is an overall view of the 3D printing apparatus provided by the present invention;

fig. 6 is a schematic view of the internal structure of the multi-material 3D printing apparatus after the base is hidden;

fig. 7 is a structural diagram of the rotary switching mechanism of the cleaning box provided by the present invention at an angle;

fig. 8 is a structural diagram of the rotary switching mechanism of the cleaning box provided by the present invention at another angle;

fig. 9 is a structural diagram of the feeding, spreading and scraping integrated unit provided by the present invention;

FIG. 10 is a diagram showing the position relationship between the spreading scraping member and the magazine;

fig. 11 is a structural diagram of the spreading scraping member provided by the present invention;

fig. 12 is a structural view of a doctor holder provided by the present invention;

fig. 13 is a structural diagram of the scraper provided by the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The utility model provides a be used for many materials 3D to print belt cleaning device, integrated 3D print platform air-dries the device with the washing to, the washing air-dries the device and adopts rotatory switching mode, works asPrinting platformWhen cleaning and air-drying are needed, rotating the cleaning and air-drying device to be right below the printing platform; when the cleaning and air-drying are finished, the cleaning and air-drying device is rotated to other positions, so that the printing platform printsAnd (5) sequencing. Because the control to the washing air-dry device is realized to adoption rotation switching mode, at whole 3D printing and washing air-dry in-process, print platform rigidity to help improving print platform's printing precision. In addition, the cleaning and air-drying device integrates two functions of cleaning and air-drying, has various functions, and can be used for air-drying after cleaning the printed piece, so that the printed materials can not be polluted mutually in the execution process of the printing task, and the quality of the printed products can be ensured.

Referring to fig. 1, the utility model provides a be used for many materials 3D to print belt cleaning device, include: a base 100, a printing platform unit 200 and a cleaning and air-drying unit 600;

a printing platform unit 200 is fixedly arranged above the base 100; the printing platform unit 200 comprises a platform lifting mechanism 201 and a printing platform 202; the platform lifting mechanism 201 is a ball screw lifting mechanism;

the cleaning and air-drying unit 600 comprises a cleaning box unit, a cleaning box rotary switching mechanism, an air outlet plate 606 and an air outlet plate rotary driving mechanism; the cleaning box rotating switching mechanism is connected with the cleaning box unit and is used for rotating the cleaning box unit to be right below the printing platform 202; the air outlet plate rotation driving mechanism is connected with the air outlet plate 606 and is used for driving the air outlet plate 606 to horizontally rotate; the air outlet plate 606 is located above the cleaning box unit.

The structural components are described in detail below:

platform lifting mechanism 201

Platform elevating system 201 is ball screw elevating system, includes: the lifting motor 2011, the screw 2012, the slider 2013, the upper limit switch 2014 and the lower limit switch 2015;

the screw rod 2012 is vertically arranged; a slider 2013 is sleeved on the screw rod 2012; a horizontally arranged printing platform 202 is fixedly arranged outside the slider 2013; the lifting motor 2011 is used for driving the screw rod 2012 to rotate; at the upper limit position and the lower limit position where the slider 2013 slides, an upper limit switch 2014 and a lower limit switch 2015 are respectively installed, so that the position limit of the printing platform 202 is limited.

(II) cleaning box unit and air outlet plate 606

It should be emphasized that the cleaning box unit and the air outlet plate 606 provided by this embodiment are only a specific embodiment, and in practical application, the cleaning box unit and the air outlet plate of other structural forms can also be adopted, and the utility model discloses do not limit this:

specifically, whether the cleaning of the printing residues is complete or not in the 3D printing process of photocuring various materials directly influences the quality of printed products. Especially, during the light-cured molding additive manufacturing, the printing raw materials are mostly in a liquid or paste state. In order to realize multi-gradient printing of various materials, different printing materials are required to be ensured not to be polluted mutually in the process of executing a printing task. The printing surface of each printed material is free from other residue, so that printing of different materials can be realized at each layer and even at a single pixel level. The traditional cleaning mode has physical damage or incomplete cleaning to a certain degree on the surface quality of a printed product.

Therefore, the utility model relates to a be used for many materials 3D to print from levelling ultrasonic cleaning box is a washing box that is used for many materials 3D to print, adopts ultrasonic cleaning + vacuole method generator + air-out plate mode, guarantees to print the printing material and can not mutual pollution in the task execution process to guarantee to print product quality.

(2.1) cleaning Cartridge Unit

Referring to fig. 2 and 3, the self-leveling ultrasonic cleaning box for multi-material 3D printing comprises a cleaning box 601, an ultrasonic generator 602, a bubble generator 603, a self-leveling liquid outlet 604 and a self-leveling liquid return port 605;

the bottom of the cleaning box 601 is provided with an ultrasonic generator 602; a self-leveling liquid outlet 604 and a self-leveling liquid return port 605 are respectively arranged at two sides of the cleaning box 601; a bubble generator 603 is mounted between the self-leveling liquid outlet 604 and the self-leveling liquid return 605.

The principle is as follows:

the cleaning box 601 is made of 3D printing non-metal materials, so that a complex mechanism can be realized, and vibration transmission is reduced.

The self-leveling liquid outlet 604 and the self-leveling liquid return port 605 are respectively connected with a peristaltic pump to realize the circulation of the cleaning liquid. The circulation mode is as follows: the cleaning liquid is located in the liquid container, enters the cleaning box through the self-leveling liquid return port 605 through the peristaltic pump, is pumped out from the self-leveling liquid outlet 604 through the peristaltic pump and is filtered, and finally the filtered cleaning liquid is returned into the liquid container. Since the self-leveling liquid outlet 604 and the self-leveling liquid return port 605 are designed to be self-leveling, the cleaning liquid can stably flow in and flow out.

The bottom of the cleaning box 601 is provided with an ultrasonic generator 602 which can generate cavitation effect for cleaning the surface of the printing piece.

The ultrasonic power is not suitable to be too high because the power of the ultrasonic generator 602 can damage the structure of the printed part. Therefore, the power of the ultrasonic generator 602 cannot make the particle deposition uniformly distributed on the liquid surface, and therefore, the particles in the solution cannot be discharged from the cleaning box 601 through the self-leveling liquid outlet 604. For making in the washing box 601 residual material granule can be effectively along with self-leveling liquid outlet 604 discharge and filter, guarantee to wash the clean of the interior washing liquid of box 601, the utility model discloses special design vacuole generator 603.

Referring to fig. 3, the bubble generator 603 includes a bubble generator body 6031, the bubble generator body 6031 is a cavity structure, and a plurality of vent holes 6032 communicated with the cavity structure are formed on a surface of the bubble generator body 6031; an air inlet 6033 communicated with the cavity structure is formed in the back surface of the liquid bubble generator body 6031; the air inlet 6033 is connected with an air source.

By connecting the gas circuit, gas is enabled to generate larger bubbles along the circular holes on the surface of the bubble generator 603, so that deposited particles in the liquid in the cleaning box are uniformly distributed on the surface of the liquid and enter the self-leveling liquid outlet 604 along with the circulation of the liquid for filtering, thereby ensuring that the cleaning liquid in the cleaning box keeps a good cleaning effect and can work for a long time without replacing the cleaning liquid.

Additionally, the utility model discloses in, it has a plurality of round holes to be overflow tank 607 to wash the box design all around, and the storage overflows liquid, avoids the washing liquid stream to spatter to other places of equipment. The cleaning box is also provided with an overflow hole 608, the overflow hole 608 is slightly higher than the surface of the overflow groove 607 and lower than the upper surface of the outer wall of the cleaning box, when too much cleaning liquid is caused by some abnormal reason in the cleaning box, the liquid can enter the overflow hole 608 to trigger the overflow sensor 609, thereby suspending the cleaning system and avoiding the damage or pollution of the printing equipment caused by too much overflow or outflow.

(2.2) air outlet plate 606

In the present invention, an air outlet plate 606 is disposed above the cleaning box 601 as an air drying unit, referring to fig. 4, the air drying unit includes the air outlet plate 606; the air outlet plate 606 adopts a porous integrated type surface air outlet structure, the air outlet plate 606 is horizontally arranged above the cleaning unit, one end of the air outlet plate 606 is an air inlet 606A, and the air inlet 606A is connected with an air source through an air channel electromagnetic valve; the upper surface of the air-out plate 606 is provided with a plurality of air outlets 606B.

The air outlet plate 606 directly blows to the bottom of the printing platform through the air outlet 606B, and in the air outlet process, through swinging, the air drying function of the printing surface at the bottom of the printing platform is achieved.

The air outlet plate is designed into a porous integrated type face air outlet structure, so that the problem of physical damage to a printed piece caused by air outlet of a traditional air nozzle is greatly reduced; and, the utility model discloses porous formula inheritance face air-out, the air-out air-dries the area big, and air-dries efficiency and effect all obtain effectively promoting.

(III) rotating switching mechanism of cleaning box

Also included are n cartridges 505; n material boxes 505 and a cleaning box unit are arranged along the ring shape; the magazine 505 and the cleaning magazine unit are connected to the cleaning magazine rotation switching mechanism.

That is, for a multi-material 3D printing apparatus, the cartridge 505 and the purge cartridge unit share the same set of rotary switching mechanism, thereby reducing the complexity of the structure.

The utility model discloses specific structural style to wasing box rotary switch mechanism is not restricted, as long as can realize the rotation switching can, following only describe a concrete embodiment among the practical application:

for guaranteeing to print the precision, realize the stationarity and the levelness that magazine and washing box rotate to switch, prevent to print the material inhomogeneous when the rotation switches thickness in the magazine, the utility model provides a rotatory switching mechanism of washing box of meticulous design, the main part adopts the axisymmetric structure to adopt slewing bearing to assist, guarantee the precision that magazine and washing box rotate to switch.

Referring to fig. 7 and 8, the wash cassette rotary switching mechanism 500 includes a rotary disk 501, a rotary bearing 502, a rotary motor 503, and a connection bracket 504;

the rotary disc 501 is horizontally arranged, a connecting bracket 504 is fixedly arranged coaxially below the rotary disc 501, a rotating motor 503 is fixedly arranged coaxially below the connecting bracket 504, and the rotary disc 501 is driven to rotate horizontally by the rotating motor 503;

the bottom of the rotary disk 501 is coaxially provided with a rotary bearing 502; wherein, the slewing bearing 502 adopts an inner and outer ring slewing bearing, and the outer ring bearing is fixed with the surface of the base 100; the inner ring bearing is fixed with the bottom surface of the rotary disk 501, and the rotary disk 501 rotates stably under the supporting action of the rotary bearing 502;

n material boxes 505 and a cleaning and air-drying unit 600 are fixedly arranged on the surface of the rotary disk 501 along the ring shape; for example, 5 cartridges 505 and one purge seasoning unit 600 may be installed. When the rotary disk 501 rotates, each material box 505 and the cleaning and air-drying unit 600 are driven to synchronously rotate, and when one material box 505 rotates to a printing station, the material box 505, the printing platform 202 and the ultraviolet optical unit 300 which are positioned at the printing station are positioned on the same vertical line from top to bottom; when the cleaning and air-drying unit 600 rotates to the printing station, the cleaning and air-drying unit is used for cleaning and air-drying the printing surface of the printing platform 202; rotation of the turntable 501 switches between the respective magazines 505 and the wash and air-dry unit 600.

The wash tank rotary switch mechanism 500 has the following features:

(1) the cleaning box rotary switching mechanism 500 has the main body of an axisymmetric structure and adopts a slewing bearing for assistance, so that the precision of rotary switching between the material box and the cleaning box is ensured.

(2) The surface of the disk 501 is rotated, and the material box 505 and the cleaning and air-drying unit 600 are integrated at the same time, so that the material box 505 and the cleaning and air-drying unit 600 are switched. That is to say, the magazine 505 and the cleaning and air-drying unit 600 share the same set of rotation switching mechanism, and there is no need to design a special rotation switching mechanism for the cleaning and air-drying unit, so that the complexity of the device structure is simplified, and the device integration level is high.

(IV) air outlet plate rotary driving mechanism

A spreading scraping piece 404 is uniquely and correspondingly arranged above each material box 505; the spreading scraping piece 404 and the air outlet plate 606 are both connected to an air outlet plate rotation driving mechanism.

That is, for a multi-material 3D printing device, the spreading scraper 404 and the air outlet plate 606 share the same set of rotary driving mechanism, thereby reducing the complexity of the structure.

The utility model discloses specific structural style to going out aerofoil rotary driving mechanism is not restricted, as long as can realize rotatory switching can, following only describe a concrete embodiment among the practical application:

referring to fig. 7 and 8, the outlet plate rotation driving mechanism 400 includes: an air outlet plate rotating disc 401, an air outlet plate rotating bearing 402 and an air outlet plate motor 403.

Wherein, the setting quantity of the paving material scraping pieces 404, the setting quantity of the feeding units 405 and the setting quantity of the material boxes 505 are the same, one paving material scraping piece 404, one feeding unit 405 and one material box 505 are in one-to-one correspondence, in the multi-material 3D printing process, the feeding units 405 feed the corresponding paving material scraping pieces 404, and the paving material scraping pieces 404 reciprocate in the material boxes 505 to realize paving and scraping of the material boxes 505.

N spreading and scraping pieces 404 extend outwards from the periphery of the air outlet plate rotating disc 401 and are fixedly installed; each spreading scraper 404 is positioned above a corresponding one of the magazines 505; each group of feeding units 405 corresponds to one spreading scraping piece 404 and is used for independently feeding the spreading scraping pieces 404;

the air outlet plate rotating disc 401 is positioned above the rotary disc 501, and a scraping rotary bearing 402 is coaxially arranged between the air outlet plate rotating disc 401 and the rotary disc 501; the air outlet plate rotating bearing 402 adopts an inner ring and outer ring rotating bearing, the outer ring bearing is fixed with the rotating disc 501, and the inner ring bearing is fixed with the air outlet plate rotating disc 401 and the feeding unit 405; the air outlet plate rotating disc 401 can rotate stably under the supporting action of the air outlet plate rotating bearing 402, and the air outlet plate rotating disc 401, the paving scraping piece 404 and the feeding unit 405 can move synchronously during scraping, so that the relative positions of the paving scraping piece 404 and the corresponding feeding unit 405 are ensured to be unchanged;

an air outlet plate motor 403 is fixedly arranged below the air outlet plate rotating disc 401 coaxially, and the air outlet plate rotating disc 401 is driven to rotate through the air outlet plate motor 403;

when the air outlet plate rotating disc 401 rotates, the spreading scraping piece 404 and the feeding unit 405 are driven to synchronously rotate to realize scraping; the air outlet plate motor 403 is fixed on the connecting bracket 504, and when the material box rotates, the air outlet plate motor 403, the air outlet plate rotating disk 401, the paving material scraping part 404 and the feeding unit 405 are driven to integrally move synchronously.

To the utility model provides a go out aerofoil rotation driving mechanism 400, still have following innovative design:

(4.1) Angle restriction piece 406 and contact switch 407

In the utility model, an output shaft of an air outlet plate motor 403 is sleeved with an angle limiting sheet 406, and the angle limiting sheet 406 is of a fan-shaped structure; a contact switch 407 is fixedly mounted on a rotation path of the angle limiting piece 406; the rotation angle of the air outlet plate motor 403 in the forward and reverse directions is controlled by the engagement of the angle restricting piece 406 and the contact switch 407.

Specifically, the angle limiting piece 406 has a fan-shaped structure, and two end points of the fan-shaped structure are P1 and P2. When the P1 contacts the contact switch 407, the spreading scraper 404 is located at the left C1 position of the magazine 505; then, the air outlet plate motor 403 rotates and drives the spreading scraping piece 404 and the angle limiting piece 406 to synchronously rotate, and at the moment, when the angle limiting piece 406 rotates, the sector arc line of the angle limiting piece is continuously contacted with the contact switch 407; the spreading scraper 404 rotates from the left C1 position to the right C2 position of the magazine 505;

when the P2 of the angle limiting piece 406 contacts the contact switch 407, the spreading scraper 404 rotates to the right C2 position of the magazine 505; then, the air-out plate motor 403 is triggered to rotate reversely, so that the spreading scraping piece 404 rotates from the position of the right side C2 of the material box 505 to the position of the left side C1, meanwhile, the angle limiting piece 406 rotates, the end point of the P1 is continuously close to the contact switch 407, and when the end point of the P1 is in contact with the contact switch 407, the spreading scraping piece 404 just rotates to the position of the left side C1 of the material box 505. The above-mentioned steps are repeated continuously, so that the reciprocating swing motion of the spreading scraping piece 404 in the material box 505 is realized.

(4.2) feed Unit 405

Each set of supply units 405 is used to supply one corresponding magazine 505.

Referring to fig. 9, each set of feed unit 405 includes a cartridge 405A, a feed delivery pipe 405B, and a solenoid valve 405C.

The cartridge 405A contains a printing material, corresponds to a cartridge 505, and is powered by air pressure provided by an external air compressor, and is controlled by an electromagnetic valve 405C to feed each cartridge 405A separately, and the printing material is conveyed into a scraper rack 4041 in the cartridge 505 through a conveying pipe 405B.

(4.3) spreading scraper 404

Referring to fig. 9-13, the windrow wiper 404 includes: a blade holder 4041, a left blade 4042, and a right blade 4043;

the blade holder 4041 includes a blade cavity 4041A and a blade arm 4041B fixedly integrated with the inside of the blade cavity 4041A;

the scraper arm 4041B is used for fixing with the periphery of the air outlet plate rotating disk 401; in the utility model, as in fig. 10, scraper arm 4041B adopts three quadrature plane to form, and with the mounting groove cooperation of air-out board rotary disk 401, scraper arm 4041B puts into the mounting groove to it is fixed to lock. Therefore, the fixed end of the scraper arm 4041B is composed of three orthogonal planes, and is matched with the mounting groove composed of the three orthogonal planes, so that high repeated positioning precision can be realized, the three orthogonal planes are fixed by a single release screw, six-degree-of-freedom complete locking can be realized, and high stability can be realized no matter the material scraping integrated scraper is rotated or linearly and repeatedly scraped. And the thickness precision of the printing layer can not be influenced by a cantilever structure formed by fixing on one side.

The scraper cavity 4041A is located inside one material box 505, the scraper cavity 4041A is provided with a through hollow structure cavity, and the length and radian of the scraper cavity 4041A are matched with the inner cavity of the material box 505 and used for reciprocating rotation along the inner cavity of the material box 505 to realize efficient scraping. In addition, scraper cavity 4041A adopts the design of optimizing open type inclined plane, and the material can be carried out in real time to the printing material dependence natural gravity of being convenient for in 3D printing process and supply.

The left and right sides of the scraper cavity 4041A are respectively provided with a left scraper 4042 and a right scraper 4043 with adjustable heights; the left blade 4042 and the right blade 4043 are one print layer thick from the bottom surface of the blade cavity 4041A. Wherein, the side wall of both sides scraper and scraper cavity 4041A, the finish machining leans on the face cooperation, and the design has long waist hole on the scraper, can realize high accuracy fine setting and fix locking through two screws with the clearance gauge to realize scraping the bed thickness difference.

The utility model provides a spreading material scraping piece has following advantage:

1) the material spreading and scraping piece is provided with double scrapers and a scraper cavity for accommodating printing materials, integrates a material supplying and spreading integrated scraper, integrates traditional material supplying and spreading into material spreading and material supplying at the same time, and improves the efficiency of material spreading and material supplying;

2) the height of the scraper is adjustable, so that scraping materials with different layer thicknesses is realized, and various use requirements are met.

3) The spreading material scraping part and the air outlet plate rotating disc are installed in a matched mode through three orthogonal plane structures, and high stability of the spreading material integral scraper in rotating material scraping or linear reciprocating material scraping is guaranteed.

Therefore, the utility model provides a stone scrapes material spare, for a confession stone integral type scraper, can simplify the first feed back stone work flow that traditional 3D printed and go on simultaneously for feed and stone, and make the structure simpler.

Orthogonal plane cooperation is leaned on the design of face, makes the integrated scraper of confession stone material dismantles the installation and realize high repeated positioning accuracy to each layer thickness uniformity in the assurance 3D printing process finally directly guarantees 3D and prints finished product precision and structural performance.

The utility model discloses can effectively solve present stage 3D and print the efficiency and the printing precision problem of trade ubiquitous. The integrated scraper for spreading materials adopts a single loose screw fixation, can realize high stability and high precision, and is convenient for cleaning the scraper and the material box after the photocuring 3D printing is finished.

(v) ultraviolet optical unit 300:

in practical application, the ultraviolet optical unit 300 is also included. Referring to fig. 5, an ultraviolet optical unit 300 is fixedly installed below a base 100; the printing surface of the printing platform 202 and the light emitting direction of the ultraviolet optical unit 300 are coaxially arranged in an up-down opposite manner.

Specifically, the ultraviolet optical unit 300 adopts a high-precision ultraviolet DLP optical system, and is fixed under the printing platform 202, and the material box located between the ultraviolet optical unit 300 and the printing platform 202 is a material box of the printing station, so that the printing platform 202, the ultraviolet optical unit 300 and the material box of the printing station are arranged in a straight line in the longitudinal direction.

The ultraviolet optical unit 300 penetrates through the optical glass at the bottom of the material box from bottom to top to perform projection curing on the printing material in the material box, so that the single layer thickness printing material is cured to the bottom printing surface of the printing platform 202 according to a set shape.

The utility model also provides a method for being used for many materials 3D to print belt cleaning device, including following step:

step 1, in the multi-material 3D printing process, after the bottom surface of a printing platform is bonded to finish one-time printing material curing molding, a cleaning box rotating switching mechanism controls a cleaning box unit to rotate to be right below the printing platform 202;

step 2, the platform lifting mechanism 201 controls the printing platform 202 to descend, so that the solidified and formed parts bonded on the bottom surface of the printing platform are immersed in the cleaning liquid in the cleaning box unit, and the solidified and formed parts are subjected to ultrasonic cleaning;

step 3, after the cleaning is finished, the platform lifting mechanism 201 controls the printing platform 202 to ascend by a certain height, so that the solidified and molded part on the bottom surface of the printing platform 202 is positioned above the air outlet plate 606;

and 4, driving the air outlet plate 606 to swing below the curing and forming part by the air outlet plate rotation driving mechanism, and directly blowing the air outlet of the air outlet plate 606 to the curing and forming part to realize the air drying function of the curing and forming part at the bottom of the printing platform 202.

The utility model provides a pair of be used for many materials 3D to print belt cleaning device and method has following advantage:

adopt rotatory switching mode to realize drying the control of device to the washing, print platform rigidity is motionless at whole 3D printing and washing air-dry in-process to help improving print platform's printing precision. In addition, the cleaning and air-drying device integrates two functions of cleaning and air-drying, has various functions, and can be used for air-drying after cleaning the printed piece, so that the printed materials can not be polluted mutually in the execution process of the printing task, and the quality of the printed products can be ensured.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.

Claims (4)

1. A cleaning device for multi-material 3D printing is characterized by comprising: the printing equipment comprises a base (100), a printing platform unit (200) and a cleaning and air-drying unit (600);

the printing platform unit (200) is fixedly arranged above the base (100); the printing platform unit (200) comprises a platform lifting mechanism (201) and a printing platform (202); the platform lifting mechanism (201) is a ball screw lifting mechanism;

the cleaning and air-drying unit (600) comprises a cleaning box unit, a cleaning box rotary switching mechanism, an air outlet plate (606) and an air outlet plate rotary driving mechanism; the cleaning box rotary switching mechanism is connected with the cleaning box unit and is used for rotating the cleaning box unit to be right below the printing platform (202); the air outlet plate rotation driving mechanism is connected with the air outlet plate (606) and is used for driving the air outlet plate (606) to horizontally rotate; the air outlet plate (606) is positioned above the cleaning box unit.

2. The cleaning device for multi-material 3D printing according to claim 1, wherein the platform lifting mechanism (201) is a ball screw lifting mechanism comprising: the device comprises a lifting motor (2011), a screw rod (2012), a slider (2013), an upper limit switch (2014) and a lower limit switch (2015);

the screw rod (2012) is vertically arranged; the sliding block (2013) is sleeved on the screw rod (2012); the printing platform (202) which is horizontally arranged is fixedly arranged outside the sliding block (2013); the lifting motor (2011) is used for driving the screw rod (2012) to rotate; the upper limit switch (2014) and the lower limit switch (2015) are respectively installed at the upper limit position and the lower limit position where the sliding block (2013) slides.

3. The cleaning device for multi-material 3D printing according to claim 1, further comprising n cartridges (505);

n cartridges (505) and one cleaning cartridge unit are annularly arranged; the material box (505) and the cleaning box unit are connected with the cleaning box rotary switching mechanism.

4. The cleaning device for multi-material 3D printing according to claim 3, characterized in that a spreading scraper (404) is arranged above each magazine (505) in unique correspondence; the spreading material scraping piece (404) and the air outlet plate (606) are connected to the air outlet plate rotation driving mechanism.

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