CN117021577A

CN117021577A - Multifunctional integrated 3D printing module and application method thereof

Info

Publication number: CN117021577A
Application number: CN202311296434.6A
Authority: CN
Inventors: 胡楠; 马瑞奇; 赵海洋; 李嘉晨; 朱璐; 马文千
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2023-11-10
Anticipated expiration: 2043-10-09
Also published as: CN117021577B

Abstract

The invention discloses a multifunctional integrated 3D printing module and a use method thereof, belonging to the field of 3D printing, and comprising a printing body consisting of a machine body and a spray head arranged in the machine body, wherein an anti-blocking and blocking-clearing module is arranged in the machine body and corresponds to the spray head, and comprises a blocking prevention unit, a blocking detection unit and a blocking clearing unit which are sequentially arranged along the spray head; the blockage preventing unit is used for preventing blockage inside the spray head; the detection blocking unit is used for detecting whether the spray head is blocked; and the blockage clearing unit is used for starting to clear blockage when the blockage detecting unit detects that the spray head is blocked. According to the multifunctional integrated 3D printing module and the application method thereof, the anti-blocking and blocking-clearing module is arranged, so that blocking of the spray head can be effectively prevented, and when the blocking of the inside of the spray head is detected, the blocking of the spray head is cleared, and the normal operation of the spray head is ensured.

Description

Multifunctional integrated 3D printing module and application method thereof

Technical Field

The invention relates to the technical field of 3D printing, in particular to a multifunctional integrated 3D printing module and a using method thereof.

Background

The FDM type 3D printer is based on the principle that a thread-shaped hot melt material is heated and melted, and a printing nozzle is controlled by a computer to coat the material on a workbench according to a digital model file, so that a three-dimensional object is manufactured by printing bonding materials layer by layer. For example:

chinese patent publication No. CN 110757786A discloses an online laser leveling detection method for a 3D printer, which implements detection of motion flatness, installation flatness, and extrusion fault monitoring of a print head by communicating a detection signal of a laser detection system with a printer control system and designing a signal processing program. But it has a problem in that the leveling device occupies a print work space.

The Chinese patent with publication number CN 208020766U discloses a 3D printer with temperature control and humidity control structure, which can effectively control the humidity and temperature of the environment while performing 3D printing, has the advantages of convenient use, simple structure and the like, but has the problem that the temperature and the humidity of the printing environment cannot be automatically adjusted.

Meanwhile, the existing FDM 3D printer has the following problems: first, the condition that the material was blockked up can appear in the shower nozzle: to this problem, the current method is generally solved through dismantling the shower nozzle, carries out the mode of clearance to the shower nozzle inside again, and this mode has the degree of automation to be low, can't clean shortcoming to the shower nozzle through its regulation. Secondly, leveling is inconvenient and inaccurate: the existing printing platform mainly relies on manual leveling, and a plug sheet (plugged between the printing platform and a spray head) is used for checking whether leveling is performed or not, so that a convenient and accurate leveling function is not provided. Third, current printers mainly rely on stepper motor positioning systems to position the spray heads, can not realize ultra-high precision printing tasks, and can not execute printing tasks when the stepper motor positioning systems fail. Fourth, the influence of the printing environment is great, and the specific expression is: along with the progress of printing work, the printing environment temperature is increased, the transverse shrinkage rate and the longitudinal shrinkage rate of a printing test piece are increased, and the warping height is reduced, so that the forming precision is influenced; meanwhile, the printing environment humidity can influence the bonding speed between materials and the strength of a formed test piece; in addition, harmful gas and wire materials can be generated in the printing process, and the air quality of the surrounding environment of the printer and the health of a user can be influenced.

Disclosure of Invention

In order to solve the problems, the invention provides the multifunctional integrated 3D printing module and the application method thereof, and the anti-blocking and anti-blocking module is arranged, so that the blocking of the spray head can be effectively prevented, and the blocking of the spray head can be cleared when the blocking of the spray head is detected, and the normal operation of the spray head is ensured.

In order to achieve the above purpose, the invention provides a multifunctional integrated 3D printing module, which comprises a printing body consisting of a machine body and a spray head arranged in the machine body, wherein an anti-blocking and blocking-clearing module is arranged in the machine body and corresponds to the spray head, and the anti-blocking and blocking-clearing module comprises a blocking prevention unit, a blocking detection unit and a blocking clearing unit which are sequentially arranged along the spray head;

the blockage preventing unit is used for preventing blockage inside the spray head;

the detection blocking unit is used for detecting whether the spray head is blocked;

and the blockage clearing unit is used for starting to clear blockage when the blockage detecting unit detects that the spray head is blocked.

The application method of the multifunctional integrated 3D printing module comprises the following steps:

s1, debugging a light-transmitting printing plate:

s11, laser positioning detection:

randomly inputting XY coordinates to a computing module, controlling a first XYZ moving platform, a second XYZ moving platform and a third XYZ moving platform to respectively drive a first laser distance meter, a spray head and a laser extension arm to move to the input XY coordinates by the computing module, vertically emitting laser downwards by a laser sensor on the laser extension arm, judging whether the first laser distance meter receives the laser, if so, indicating that the stepping motor is positioned normally, and executing step S12; otherwise, indicating abnormal positioning, and adjusting and repairing until the positioning is normal;

S12, automatic leveling detection:

the calculation module randomly selects three non-collinear reflective leveling plates, the third XYZ moving platform drives the laser sensor to move to the three non-collinear reflective leveling plates respectively, and after the three non-collinear reflective leveling plates are in place, laser is vertically emitted downwards, and the reflective leveling plates reflect the laser of the laser sensor; if the laser sensor receives the three selected non-collinear reflective leveling sheets, the step S13 is executed normally, otherwise, the laser sensor is abnormal, and the adjustment is carried out until the laser sensor is normal;

s13, leveling:

the calculating module calculates the horizontal dip angle of a plane formed by the three non-collinear reflective leveling sheets according to the height values of the three non-collinear reflective leveling sheets, and calculates the extension lengths of leveling screws of the four lifting leveling parts according to the horizontal dip angle;

s2, printing:

the temperature controller is internally input with a set working temperature, then the spiral electric heating wire is opened, the temperature controller controls the spiral electric heating wire to be heated until the temperature acquired by the temperature sensor is equal to the set working temperature, then the wire enters the spray head, the wire is heated and melted under the action of the spiral electric heating wire, the melted wire is extruded from the bottom end of the spray head to form the wire, and 3D printing is performed on the transparent printing plate by matching with the second XYZ moving platform.

The invention has the following beneficial effects:

1. by arranging the anti-blocking and blocking-clearing module, blocking of the spray head can be effectively prevented, and when blocking occurs in the spray head is detected, the blocking of the spray head is cleared, so that the normal work of the spray head is ensured;

2. the automatic leveling can be conveniently and accurately realized, and the ultra-high-precision printing task can be completed;

3. the temperature, humidity and air quality conditions of the printing environment can be detected and regulated, and the advantage that the spray head is in the optimal working environment is ensured.

The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a multifunctional integrated 3D printing module according to the present invention;

FIG. 2 is a block unit layout diagram for cleaning a multi-functional integrated 3D printing module according to the present invention;

FIG. 3 is a schematic diagram of a jam clearing unit of a multifunctional integrated 3D printing module according to the present invention;

fig. 4 is a schematic diagram of an umbrella-shaped open-close needle structure of a multifunctional integrated 3D printing module according to the present invention;

FIG. 5 is a schematic diagram illustrating an umbrella-type open-close needle transmission of a multifunctional integrated 3D printing module according to the present invention;

FIG. 6 is an expanded view of a folding leg assembly of a multi-functional integrated 3D printing module according to the present invention;

FIG. 7 is a folding schematic diagram of a folding leg assembly of a multi-functional integrated 3D printing module according to the present invention;

FIG. 8 is a schematic diagram illustrating the layout of a constant temperature heating assembly of a multifunctional integrated 3D printing module according to the present invention;

FIG. 9 is a schematic diagram illustrating the installation of a double-screw temperature control component of a multifunctional integrated 3D printing module according to the present invention;

FIG. 10 is a schematic diagram illustrating an arrangement of a jam detection unit of a multifunctional integrated 3D printing module according to the present invention;

FIG. 11 is a schematic structural view of a stirring assembly of a multifunctional integrated 3D printing module according to the present invention;

FIG. 12 is a perspective view of a leveling and positioning module of a multi-functional integrated 3D printing module according to the present invention;

FIG. 13 is a bottom view of a multifunctional integrated 3D printing module leveling positioning module according to the present invention at 45;

fig. 14 is a schematic structural diagram of a laser positioning unit of a multifunctional integrated 3D printing module according to the present invention;

fig. 15 is a schematic structural diagram of a leveling unit of a multifunctional integrated 3D printing module according to the present invention;

fig. 16 is a schematic structural diagram of an environmental temperature control unit of a multifunctional integrated 3D printing module according to the present invention;

FIG. 17 is a schematic diagram illustrating the structure of an environmental humidity control unit of a multifunctional integrated 3D printing module according to the present invention;

FIG. 18 is a schematic view of a circulating air cleaning unit of a multifunctional integrated 3D printing module according to the present invention;

FIG. 19 is a piping connection diagram of a circulating air cleaning unit of a multifunctional integrated 3D printing module according to the present invention;

fig. 20 is an installation diagram of an environment sensing unit of a multifunctional integrated 3D printing module according to the present invention.

Wherein: 1. anti-blocking and block-removing module; 11. a clogging prevention unit; 111. a constant temperature heating assembly; 1111. a temperature control tube; 1112. a spiral electric heating wire; 1113. a spiral cooling tube; 1114. a water-cooled tube; 1115. a water pump; 1116. a cooling water tank; 112. a stirring assembly; 1121. a stirring shaft; 1122. a spiral stirring knife; 1123. a filter screen; 12. detecting a blocking unit; 121. a laser extension arm; 122. a first laser transmitter; 13. clearing a blocking unit; 131. a folding leg assembly; 1311. a first vertical opening and closing rod; 1312. a transverse opening and closing rod; 1313. a second vertical opening and closing rod; 132. a lifting driving assembly; 133. a rotating assembly; 134. an opening and closing assembly; 1341. a needle tube; 1342. an opening and closing sleeve; 1343. umbrella-shaped opening and closing needle; 1344. an opening and closing rod; 1345. an opening and closing driving cylinder; 135. limiting opening and closing connecting rods; 1351. a first tilt lever; 1352. a second tilt lever; 1353. a limit connecting rod; 1354. a tilt pull rod; 1355. an opening and closing driving motor;

2. Leveling and positioning modules; 21. a light-transmitting printing plate; 22. a leveling unit; 221. a platform flatness detection assembly; 222. a platform leveling assembly; 2221. a base; 2222. leveling the screw; 2223. a driven bevel gear; 2224. a buffer spring; 2225. a drive bevel gear; 23. a laser positioning unit; 231. a first XYZ translation stage; 232. a mounting block; 233. a first laser rangefinder; 234. a second laser transmitter;

3. an environmental conditioning module; 31. an ambient temperature control unit; 311. a hot air box; 312. a hot air outlet pipe; 313. a vortex tube; 314. an air transmission pipe; 315. an air supply fan; 316. a cold air outlet pipe; 317. a cold air box; 32. an environmental humidity control unit; 321. a moisture removal fan set; 322. an air drying box; 323. a water collecting box; 33. a circulating air cleaning unit; 331. cleaning a fan set; 332. cleaning the water hole head; 333. an activated carbon filter element; 334. a waste liquid collection box; 335. cleaning a water pipe; 34. an environment sensing unit;

4. printing a body; 41. a body; 42. a feed gear set; 43. a feed throat; 44. a spray head.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the detailed description and specific examples, while indicating the embodiment of the application, are intended for purposes of illustration only and are not intended to limit the scope of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality.

It should be noted that the terms "comprises" and "comprising," along with any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-20, a multifunctional integrated 3D printing module includes a printing body 4 composed of a machine body 41 and a spray nozzle 44 arranged in the machine body 41, wherein an anti-blocking and blocking-cleaning module 1 is arranged in the machine body 41 and corresponds to the spray nozzle 44, and the anti-blocking and blocking-cleaning module 1 includes a blocking prevention unit 11, a blocking detection unit 12 and a blocking cleaning unit 13 which are sequentially arranged along the spray nozzle 44; wherein the blockage prevention unit 11 is used for preventing blockage inside the spray nozzle 44; a detection clogging unit 12 for detecting whether or not clogging of the head 44 occurs; the blockage cleaning unit 13 is used for starting to clean blockage when the blockage detection unit 12 detects blockage of the spray head 44. A feeding gear set 42 and a feeding throat 43 are sequentially arranged above the spray head 44 in the embodiment.

Specifically, the clogging prevention unit 11 includes a constant temperature heating member 111 and a stirring member 112; the constant temperature heating assembly 111 comprises a temperature control tube 1111 sleeved outside the spray head 44, and a double-spiral temperature control component (the spiral arrangement can ensure the heat of the heating wire to be fully transferred, and ensure the maximized utilization of the use space in the temperature control tube 1111 and the timely heat removal of the spiral cooling tube 1113) which is embedded inside the temperature control tube 1111 and consists of a spiral electric heating wire 1112 and a spiral cooling tube 1113, wherein the spiral electric heating wire 1112 is electrically connected with the output end of the temperature controller, and the input end of the temperature controller is electrically connected with a temperature sensor for detecting the working temperature in the spray head 44; the spiral cooling pipe 1113 is communicated with a water outlet of the cooling water tank 1116 through a water cooling pipe 1114 and a water pump 1115 (the cooling water tank 1116 in the embodiment is arranged in the machine body 41 and is far away from the spray head 44, so that the influence on printing work is avoided), a water inlet valve is further arranged on the water cooling pipe 1114, the water inlet valve and the water pump 1115 are electrically connected with an output end of a temperature controller, and the water cooling pipe 1114 is communicated with a water return port of the cooling water tank 1116 after passing through the spiral cooling pipe 1113; the stirring assembly 112 comprises a stirring shaft 1121 rotatably arranged in the spray head 44, a spiral stirring cutter 1122 fixed on the outer circumferential side of the stirring shaft 1121 and a filter screen 1123 arranged below the stirring shaft 1121, wherein the spiral stirring cutter 1122 consists of a plurality of blades which are spirally arranged around the stirring shaft 1121, so that wires can be fully cut and conveyed downwards, and blockage can be effectively prevented.

Preferably, the blockage detecting unit 12 comprises a first laser transmitter 122 and a first laser receiver which are respectively arranged at two symmetrical sides of the output end of the spray head 44, the first laser receiver is fixed in the machine body 41 corresponding to the output end of the spray head 44, and the first laser transmitter 122 is fixed on the laser extension arm 121; the blockage cleaning unit 13 is of a folding telescopic blockage cleaning needle structure (the folding structure avoids the influence on normal printing work), and the blockage cleaning unit 13 comprises a folding frame assembly 131, a lifting driving assembly 132 connected with the folding frame assembly 131, a rotating assembly 133 connected with the output end of the lifting driving assembly 132 and an opening and closing assembly 134 connected with the output end of the rotating assembly 133; the folding frame assembly 131 is of a two-stage folding structure, the folding frame assembly 131 comprises a first vertical opening and closing rod 1311 arranged on one side of the spray head 44, a transverse opening and closing rod 1312 with one end rotationally connected with the bottom end of the first vertical opening and closing rod 1311 through a limit opening and closing connecting rod 135, and a second vertical opening and closing rod 1313 rotationally connected with the other end of the transverse opening and closing rod 1312 through the limit opening and closing connecting rod 135, the limit opening and closing connecting rod 135 comprises a first inclined rod 1351, a second inclined rod 1352, a limit connecting rod 1353 and an inclined pull rod 1354, two ends of the first inclined rod 1351 are respectively vertically rotationally connected with the transverse opening and closing rod 1312 and the first vertical opening and closing rod 1311 or the second vertical opening and closing rod 1313, one end of the limit connecting rod 1353 is vertically rotationally connected with the middle position of the first inclined rod 1351, the other end of the second inclined rod 1352 is vertically rotationally connected with one end of the first vertical opening and closing rod 1311 or the second vertical opening and closing rod 1313 through the other end of the limit opening and closing rod 1352, the other end of the middle connecting rod 1352 is rotationally connected with an inclined motor 1354 through the inner gear ring and the inner gear ring 1315; the rotational connection of the second inclined rod 1352 and the first vertical opening and closing rod 1311 or the second vertical opening and closing rod 1313 is located above the rotational connection of the first inclined rod 1351 and the first vertical opening and closing rod 1311 or the second vertical opening and closing rod 1313; the lifting driving assembly 132 comprises a lifting driving cylinder fixed at one end of the second vertical opening and closing rod 1313 far away from the horizontal opening and closing rod 1312; the rotating assembly 133 includes a rotating driving motor fixed to an output end of the elevation driving cylinder; the opening and closing assembly 134 comprises a needle tube 1341 fixedly connected with the output end of a rotary driving motor, an opening and closing sleeve 1342 vertically arranged on the outer side of the needle tube 1341 in a sliding manner, and an umbrella-shaped opening and closing needle 1343 rotatably arranged on the outer circumference side of the opening and closing sleeve 1342; a vertical guide hole is formed in the needle tube 1341 and corresponds to the position of the opening and closing sleeve 1342, an opening and closing guide block is fixed on the inner circumference side of the opening and closing sleeve 1342 and corresponds to the position of the vertical guide hole, and the opening and closing guide block extends into the needle tube 1341 and is connected with an opening and closing driving cylinder 1345 fixed in the needle tube 1341; the umbrella-shaped opening and closing needle 1343 comprises a plurality of blocking clearing needles arranged around the opening and closing sleeve 1342, the top ends of the blocking clearing needles are vertically and rotatably connected with the outer circumferential side of the needle tube 1341, and the inner side of one end of the blocking clearing needle close to the needle tube 1341 is vertically and rotatably connected with the outer circumferential side of the opening and closing sleeve 1342 through an opening and closing rod 1344.

Preferably, a leveling positioning module 2 is arranged inside the machine body 41 and below the corresponding spray nozzle 44, and the leveling positioning module 2 comprises a transparent printing plate 21, a leveling unit 22 for adjusting the flatness of the transparent printing plate 21 and a laser positioning unit 23 for adjusting the plane position of the transparent printing plate 21. Wherein the leveling unit 22 comprises a platform flatness detecting component 221 for detecting the flatness of the transparent printing plate 21 and a platform leveling component 222 for adjusting the flatness of the transparent printing plate 21; the platform flatness detection assembly 221 comprises a laser sensor which is arranged above the transparent printing plate 21, and a plurality of reflective leveling sheets which are embedded on the transparent printing plate 21 in a matrix, wherein the top ends of the reflective leveling sheets are level with the top end of the transparent printing plate 21; the laser sensor and the first laser transmitter 122 are respectively fixed on the bottom horizontal plane and the side vertical plane of the laser extension arm 121; the platform leveling assembly 222 comprises a lifting leveling part arranged at four corners of the transparent printing plate 21, the lifting leveling part comprises a base 2221 and a leveling screw 2222, the bottom end of the leveling screw 2222 is in threaded connection with the top end of the base 2221, the top end of the leveling screw 2222 is horizontally and rotatably connected with the corner of the transparent printing plate 21, a driven bevel gear 2223 is connected with the outer circumference side of the leveling screw 2222 between the transparent printing plate 21 and the base 2221, the driven bevel gear 2223 is meshed with a drive bevel gear 2225, and the drive bevel gear 2225 is connected with a leveling driving motor; and a buffer spring 2224 is sleeved on the leveling screw 2222 between the driven bevel gear 2223 and the light-transmitting printing plate 21. Preferably, the laser positioning unit 23 comprises a first laser distance meter 233 fixed at the bottom end of the transparent printing plate 21, a mounting block 232 fixed at the bottom end of the first laser distance meter 233, a second laser emitter 234 fixed at the periphery of the mounting block 232, and a second laser distance meter fixed at the periphery of the bottom end of the transparent printing plate 21 corresponding to the second laser emitter 234, wherein the mounting block 232 is fixed on the first XYZ moving platform 231; the nozzle 44 and the laser extension arm 121 are respectively fixed on the second XYZ moving platform and the third XYZ moving platform, and the first XYZ moving platform 231, the second XYZ moving platform and the third XYZ moving platform are driven by synchronously driven stepping motors, and the stepping motors are electrically connected with the computing module, so that cooperation of a plurality of modules is ensured.

Preferably, the present invention further includes an environmental conditioning module 3, the environmental conditioning module 3 including an environmental sensing unit 34, an environmental temperature control unit 31, an environmental humidity control unit 32, and a circulated air cleaning unit 33; the environment sensing unit 34 is a three-phase monitoring sensor group arranged inside the machine body 41 and is used for monitoring the temperature, humidity, harmful gas and particulate matter content of the working environment inside the machine body 41; the environmental temperature control unit 31 comprises an air storage chamber arranged outside the machine body 41, a vortex tube 313 with one end communicated with the top end of the air storage chamber, and a compressed air source connected with the other end of the vortex tube 313, wherein the end of the vortex tube 313 extending into the air storage chamber is respectively connected with one end of a hot air outlet pipe 312 and one end of a cold air outlet pipe 316 through a three-way pipe (the vortex tube 313 can divide the compressed air into hot air at one end and cold air at one end for output), the other end of the hot air outlet pipe 312 and the other end of the cold air outlet pipe 316 respectively extend into the hot air tank 311 and the cold air tank 317, and the hot air tank 311 and the cold air tank 317 are both arranged in the air storage chamber and are separated by a heat insulation plate; the hot air tank 311 and the cold air tank 317 are communicated with the machine body 41 through an air transfer pipe 314 and an air supply fan 315 (by controlling the working power of the air supply fan 315 and controlling the speed of cold/hot air input), a hot air valve and a cold air valve are respectively arranged in the air transfer pipe 314 and correspond to the position of the hot air tank 311 and the position of the cold air tank 317 (the speed and the proportion of cold/hot air input can be controlled through the opening and closing amplitude of the valves); the environmental humidity control unit 32 comprises a moisture discharging fan set 321, an air drying box 322 and a water collecting box 323 which are sequentially arranged from top to bottom, wherein calcium chloride which is used for absorbing water vapor in moist air and converting the water vapor into liquid is contained in the air drying box 322, namely, water molecules in the moist air are adsorbed on the surface of the air drying box by utilizing the strong hydrophilic characteristic of the calcium chloride, so that hydrates (formed into liquid) are formed and drop into the water collecting box 323, the fact that a calcium chloride drying agent is a consumable part needs to be replaced periodically is needed, and the bottom end of the air drying box 322 is communicated with the top end of the water collecting box 323; the circulating air cleaning unit 33 comprises a cleaning fan group 331, an activated carbon filter element 333 and a filter element circulating cleaning component (the combined design of the cleaning fan group 331 and the activated carbon filter element 333 can ensure that the activated carbon filter element 333 quickly reaches a dry state after cleaning, thereby keeping good cleaning capacity), which are sequentially arranged from top to bottom, the filter element circulating cleaning component comprises a cleaning water hole head 332 and a waste liquid collecting box 334 which are communicated with a cooling water tank 1116 through a cleaning water pipe 335 and are connected with a fourth XYZ mobile platform, and the cleaning water hole head 332 and the waste liquid collecting box 334 are respectively arranged at the upper end and the lower end of the activated carbon filter element 333; the cleaning water pipe 335 is provided with a cleaning valve.

The embodiment also comprises an information management module which comprises a display module and an information processing system; the display module is used for displaying information which the information management system needs to transmit to a user, including but not limited to working information, error reporting information, environment information and the like; and the information processing system is used for processing information among the modules.

The modules are all connected with the management module and used for unified management, and it is to be noted that the electronic components are mature products in the market, signals are collected through the sensors, and the working principle of controlling the motor or the air cylinder is common knowledge in the art, so that the description is omitted here.

s1, debugging a light-transmitting printing plate 21:

s11, laser positioning detection:

randomly inputting XY coordinates to a calculation module, controlling a first XYZ moving platform 231, a second XYZ moving platform and a third XYZ moving platform by the calculation module to drive a first laser distance meter 233, a spray head 44 and a laser extension arm 121 to move to the input XY coordinates respectively, vertically emitting laser downwards by a laser sensor on the laser extension arm 121, judging whether the first laser distance meter 233 receives the laser or not, if so, indicating that the stepping motor is positioned normally, and executing step S12; otherwise, indicating abnormal positioning, and adjusting and repairing until the positioning is normal;

In this embodiment, the following checks are also performed when an abnormality is located:

the spray head 44, the laser sensor and the first laser rangefinder 233 are moved to the limit positions corresponding to the stepper motor, and then the laser sensor emits laser to the first laser rangefinder 233; if the first laser distance meter 233 does not receive the laser signal, the display module reports that the XY-axis stepping motor movement system fails, if the first laser distance meter 233 receives the laser signal, the first laser distance meter 233 indicates that the first laser distance meter and the first laser distance meter are in the same vertical line, and the XY-axis stepping motor movement system does not fail; if the X-Y axis stepping motor computing system fails, the display module reports the error of the X-Y axis stepping motor computing system failure; the second laser transmitter 234 then transmits laser light to the second laser rangefinder, which receives the laser signal and calculates XY plane information; if the result of the XY plane information calculation is not the result of the limit position, which indicates that the laser positioning module also has faults, the display module reports error 'the laser positioning module faults'; if the result of the XY plane information calculation is equal to the result of the limit position, starting to input the motion information of the stepping motor corresponding to the first laser distance meter 233 to the shower head 44 and the stepping motor corresponding to the laser sensor so as to ensure that the laser sensor is always on the same vertical line with the first laser distance meter 233;

S12, automatic leveling detection:

if the laser sensor does not fully receive the laser reflected by the three points, indicating that the reflective leveling sheet has faults; if all the laser sensors do not receive the laser reflected by the three points, the laser sensors are indicated to be failed and cannot receive the reflected laser, and then the display module reports error laser sensor failure;

s13, leveling:

the calculating module calculates the horizontal inclination angle of a plane formed by the three non-collinear reflective leveling plates according to the height values of the three non-collinear reflective leveling plates, and calculates the extension lengths of leveling screws 2222 of the four lifting leveling parts according to the horizontal inclination angle;

S2, printing:

the set working temperature is input into the temperature controller, then the spiral electric heating wire 1112 is opened, the temperature controller controls the spiral electric heating wire 1112 to be heated until the temperature acquired by the temperature sensor is equal to the set working temperature, the wire enters the spray nozzle 44, the wire is heated and melted under the action of the spiral electric heating wire 1112, the melted wire is extruded from the bottom end of the spray nozzle 44 to form the wire, and 3D printing is performed on the transparent printing plate by matching with the second XYZ moving platform.

Preferably, the step S13 specifically includes the following steps:

firstly, taking the horizontal plane reaching the set leveling standard as a reference plane, setting the distance information between a laser sensor and the reference plane as a constant H0, and assuming that the spatial coordinates of three non-collinear reflective leveling plates are (x 1, y1, z 1), (x 2, y2, z 2) and (x 3, y3, z 3), respectively, so that the vertical coordinate of any point Hi in the space is zi= (H0-Hi), i=1, 2 and 3 … …, and calculating the vertical coordinate of the three points by a calculation module through the distance values of the three non-collinear reflective leveling plates, and then calculating a plane formula by combining the three-point plane coordinates: ax+by+cz+d=0, wherein a, B, C, D are constants calculated using three-point coordinates, and the specific formula is:

A=(y3-y1)*(z3-z1)-(z2-z1)*(y3-y1);

B=(x3-x1)*(z2-z1)-(x2-x1)*(z3-z1);

C=(x2-x1)*(y3-y1)-(x3-x1)*(y2-y1);

Then, obtaining the value of D through D= - (A x1+B x y1+C x z 1);

substituting the top plane coordinates of the four leveling screws 2222 into the obtained plane formula to obtain four-point vertical coordinates Z1, Z2, Z3 and Z4, wherein the four leveling screws 2222 need to move along the negative direction of the vertical direction by the values Z1, Z2, Z3 and Z4;

finally, after the driven bevel gear 2223 is set to rotate N times, the movement distance of the leveling screw 2222 is set as a unit 1, and the transmission ratio of the driving bevel gear 2225 and the driven bevel gear 2223 is set as a known constant i, so that the calculation module calculates the number of times N of rotation of the driving bevel gear 2225 from the distances and the transmission ratios of the four leveling screw 2222 required to move in the vertical direction.

Preferably, in step S2, the circulating air cleaning assembly is always in a working state, the cleaning fan unit 331 introduces air in the machine body 41 into the activated carbon filter element 333, filters the air by using the activated carbon filter element 333, and opens the cleaning faucet and the fourth XYZ moving platform when the three-phase monitoring sensor group detects that the working environment exceeds the standard (the set time period in the embodiment is 2 h), and the fourth XYZ moving platform drives the cleaning faucet to flush the activated carbon filter element 333, and the waste liquid generated by flushing flows into the waste liquid collecting box 334 for collection;

When the shower nozzle 44 appears blocking, lose the wire rod separation that extrudes by shower nozzle 44 between first laser receiver and the first laser emitter 122, first laser receiver receives the laser signal that first laser emitter 122 sent, judges that shower nozzle 44 appears blocking, then clear up blocking work: firstly, an opening and closing driving motor 1355 positioned at one end of a transverse opening and closing rod 1312 and close to a first vertical opening and closing rod 1311 is opened, a driving gear is driven to rotate, a driving gear drives an inclined pull rod 1354 to rotate, the transverse opening and closing rod 1312 is opened, the opening and closing driving motor 1355 positioned at one end of the transverse opening and closing rod 1312 and close to a second vertical opening and closing rod 1313 is opened, the second vertical opening and closing rod 1313 is driven to be opened, then a lifting driving cylinder is opened, the lifting driving cylinder drives an opening and closing assembly 134 to enter the spray head 44, then the lifting driving cylinder is closed, the opening and closing driving cylinder 1345 is opened, an opening and closing sleeve 1342 is pushed to move upwards along a needle tube 1341, the opening and closing driving cylinder 1345 is opened, finally, the rotary driving motor is opened, the umbrella type opening and closing needle 1343 is driven to rotate, and then the umbrella type opening and closing needle 1343 is cleared by means of rotation; reverse operation reset is performed after the blockage removal is completed; in the process of clearing the blockage, when the power of the rotary driving motor is idle power, the inside of the spray head 44 is not blocked, and the display module reports error 'detection of blockage module fault'; if the power of the rotary driving motor is not equal to the idle power at this time, it indicates that the interior of the spray head 44 is blocked, and if the power of the rotary driving motor is greater than the safe power at this time, it indicates that the umbrella-shaped opening and closing needle 1343 is insufficient to complete the blockage clearing task, the display module reports a fault of 'clearing blockage module'; if the power of the rotary driving motor is not idling power and is not greater than the safety power at the moment, the umbrella-shaped opening and closing needle 1343 can just complete the current work task of cleaning blockage, and the umbrella-shaped opening and closing needle 1343 rotates to clear blockage; when the power of the rotary driving motor is changed into idle power, the blocking of the spray head 44 is cleaned, and the reset is performed;

When the ambient temperature is higher than the set maximum ambient temperature, the cold air separated from the compressed air after passing through the vortex tube 313 is stored in the cold air box 317, the air supply fan 315 and the cold air valve are opened, the cold air enters the machine body 41 from the cold air box 317 for cooling until the temperature collected by the temperature sensor is lower than the set maximum ambient temperature, and the air supply fan 315 and the cold air valve are closed;

when the ambient temperature is less than the set minimum ambient temperature, hot air separated from compressed air after passing through the vortex tube 313 is stored in the hot air box 311, the air supply fan 315 and the hot air valve are opened, hot air enters the machine body 41 from the hot air box 311 to rise temperature until the temperature acquired by the temperature sensor is greater than the set minimum ambient temperature, and the air supply fan 315 and the hot air valve are closed;

when the ambient humidity is higher than the set ambient humidity, the humidity exhaust fan set 321 is turned on, the humid air in the machine body 41 is introduced into the air drying box 322 by means of the humidity exhaust fan set 321, the water vapor in the humid air is absorbed by the calcium chloride in the air drying box 322 and converted into a liquid state, the dried air reenters the machine body 41, and the liquid water is discharged into the water collecting box 323.

Therefore, by adopting the multifunctional integrated 3D printing module and the application method thereof, the blocking prevention and clearing module can effectively prevent the nozzle from blocking, clear the nozzle from blocking when detecting the inside of the nozzle to block, and ensure the normal operation of the nozzle.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.

Claims

1. The utility model provides a multi-functional integrated 3D prints module, includes by the organism and sets up the printing body that constitutes in the inside shower nozzle of organism, its characterized in that: the anti-blocking and blocking-removing module is arranged in the machine body and corresponds to the position of the spray head, and comprises a blocking prevention unit, a blocking detection unit and a blocking cleaning unit which are sequentially arranged along the spray head;

the blockage cleaning unit is used for starting to clean blockage when the blockage detection unit detects blockage of the spray head;

the blockage prevention unit comprises a constant temperature heating assembly and a stirring assembly;

the constant temperature heating assembly comprises a temperature control pipe sleeved outside the spray head and a double-spiral temperature control component which is embedded inside the temperature control pipe and consists of a spiral electric heating wire and a spiral cooling pipe, wherein the spiral electric heating wire is electrically connected with the output end of the temperature controller, and the input end of the temperature controller is electrically connected with a temperature sensor for detecting the working temperature in the spray head; the spiral cooling pipe is communicated with a water outlet of the cooling water tank through a water cooling pipe and a water pump, a water inlet valve is further arranged on the water cooling pipe, the water inlet valve and the water pump are electrically connected with the output end of the temperature controller, and the water cooling pipe is communicated with a water return port of the cooling water tank after passing through the spiral cooling pipe;

The stirring assembly comprises a stirring shaft rotationally arranged in the spray head, a spiral stirring knife fixed on the outer circumferential side of the stirring shaft and a filter screen arranged below the stirring shaft, and the spiral stirring knife consists of a plurality of blades which surround the stirring shaft and are spirally arranged;

the blocking detection unit comprises a first laser emitter and a first laser receiver which are respectively arranged at two symmetrical sides of the output end of the spray head, the first laser receiver is fixed in the machine body corresponding to the output end of the spray head, and the first laser emitter is fixed on the laser extension arm;

the blockage cleaning unit is of a folding telescopic blockage cleaning needle structure and comprises a folding frame assembly, a lifting driving assembly connected with the folding frame assembly, a rotating assembly connected with the output end of the lifting driving assembly and an opening and closing assembly connected with the output end of the rotating assembly;

the folding frame assembly is of a two-stage folding structure and comprises a first vertical opening and closing rod arranged on one side of the spray head, a transverse opening and closing rod, one end of which is connected with the bottom end of the first vertical opening and closing rod in a rotating manner, and a second vertical opening and closing rod, which is connected with the other end of the transverse opening and closing rod in a rotating manner, wherein the transverse opening and closing rod comprises a first inclined rod, a second inclined rod, a limiting connecting rod and an inclined pull rod;

The rotating connection part of the second inclined rod and the first vertical opening and closing rod or the second vertical opening and closing rod is positioned above the rotating connection part of the first inclined rod and the first vertical opening and closing rod or the second vertical opening and closing rod;

the lifting driving assembly comprises a lifting driving cylinder fixed at one end of the second vertical opening and closing rod far away from the transverse opening and closing rod;

the rotating assembly comprises a rotating driving motor fixed at the output end of the lifting driving cylinder;

the opening and closing assembly comprises a needle tube fixedly connected with the output end of the rotary driving motor, an opening and closing sleeve vertically arranged on the outer side of the needle tube in a sliding manner, and an umbrella-shaped opening and closing needle rotatably arranged on the outer circumferential side of the opening and closing sleeve; the needle tube is provided with a vertical guide hole corresponding to the position of the opening and closing sleeve, an opening and closing guide block is fixed on the inner circumference side of the opening and closing sleeve and corresponds to the position of the vertical guide hole, and the opening and closing guide block is connected with an opening and closing driving cylinder fixed in the needle tube after extending into the needle tube; the umbrella-shaped opening and closing needle comprises a plurality of blocking removing needles which are arranged around the opening and closing sleeve, the top ends of the blocking removing needles are vertically and rotatably connected with the outer circumferential side of the needle tube, and the inner side of one end, close to the needle tube, of the blocking removing needle is vertically and rotatably connected with the outer circumferential side of the opening and closing sleeve through an opening and closing rod.

2. The multi-functional integrated 3D printing module of claim 1, wherein: the lower part inside the machine body and corresponding to the spray head is provided with a leveling positioning module, and the leveling positioning module comprises a transparent printing plate, a leveling unit for adjusting the flatness of the transparent printing plate and a laser positioning unit for adjusting the plane position of the transparent printing plate.

3. The multi-functional integrated 3D printing module of claim 2, wherein: the leveling unit comprises a platform flatness detection assembly for detecting the flatness of the transparent printing plate and a platform leveling assembly for adjusting the flatness of the transparent printing plate;

the platform flatness detection assembly comprises a laser sensor which is arranged above the transparent printing plate, and a plurality of reflection leveling sheets which are embedded on the transparent printing plate in a matrix form, wherein the top ends of the reflection leveling sheets are level with the top end of the transparent printing plate;

the laser sensor and the first laser transmitter are respectively fixed on the bottom horizontal plane and the side vertical plane of the laser extension arm;

the platform leveling assembly comprises lifting leveling parts arranged at four corners of the transparent printing plate, each lifting leveling part comprises a base, a leveling screw rod with the bottom end in threaded connection with the top end of the base, the top end of the leveling screw rod is horizontally and rotatably connected with the corner of the transparent printing plate, a driven bevel gear is connected to the outer circumference side of the leveling screw rod between the transparent printing plate and the base, the driven bevel gear is meshed with a driving bevel gear, and the driving bevel gear is connected with a leveling driving motor; and a buffer spring is sleeved on the leveling screw rod between the driven bevel gear and the light-transmitting printing plate.

4. A multi-functional integrated 3D printing module according to claim 3, wherein: the laser positioning unit comprises a first laser distance meter fixed at the bottom end of the transparent printing plate, a mounting block fixed at the bottom end of the first laser distance meter, second laser transmitters fixed at the periphery of the mounting block, and second laser distance meters fixed at the periphery of the bottom end of the transparent printing plate corresponding to the second laser transmitters, wherein the mounting block is fixed on the first XYZ mobile platform;

the spray head and the laser extension arm are respectively fixed on the second XYZ moving platform and the third XYZ moving platform, and the first XYZ moving platform, the second XYZ moving platform and the third XYZ moving platform are driven by synchronously driven stepping motors, and the stepping motors are electrically connected with the computing module.

5. The multi-functional integrated 3D printing module of claim 4, wherein: the environment control module comprises an environment sensing unit, an environment temperature control unit, an environment humidity control unit and a circulating air cleaning unit;

the environment sensing unit is a three-phase monitoring sensor group arranged in the machine body;

the environment temperature control unit comprises an air storage chamber arranged outside the machine body, a vortex tube with one end communicated with the top end of the air storage chamber, and a compressed air source connected with the other end of the vortex tube, wherein the end of the vortex tube extending into the air storage chamber is respectively connected with one end of a hot air outlet pipe and one end of a cold air outlet pipe through a three-way pipe, the other end of the hot air outlet pipe and the other end of the cold air outlet pipe extend into the hot air box and the cold air box respectively, and the hot air box and the cold air box are both arranged in the air storage chamber and are separated by a heat insulation plate; the hot air box and the cold air box are communicated with the machine body through an air transmission pipe and an air supply fan, and a hot air valve and a cold air valve are respectively arranged in the air transmission pipe and correspond to the position of the hot air box and the position of the cold air box;

The environment humidity control unit comprises a humidity discharging fan set, an air drying box and a water collecting box which are sequentially arranged from top to bottom, wherein moisture in humid air is absorbed and converted into liquid calcium chloride in the air drying box, and the bottom end of the air drying box is communicated with the top end of the water collecting box;

the circulating air cleaning unit comprises a cleaning fan unit, an activated carbon filter element and a filter element circulating cleaning assembly which are sequentially arranged from top to bottom, the filter element circulating cleaning assembly comprises a cleaning water hole head and a waste liquid collecting box which are communicated with a cooling water tank through a cleaning water pipe and are connected with a fourth XYZ moving platform, and the cleaning water hole head and the waste liquid collecting box are respectively arranged at the upper end and the lower end of the activated carbon filter element; the cleaning water pipe is provided with a cleaning valve.

6. The method for using a multifunctional integrated 3D printing module according to claim 5, wherein: the method comprises the following steps:

s1, debugging a light-transmitting printing plate:

s11, laser positioning detection:

S12, automatic leveling detection:

s13, leveling:

s2, printing:

7. The method for using a multifunctional integrated 3D printing module according to claim 6, wherein: the step S13 specifically includes the following steps:

A=(y3-y1)*(z3-z1)-(z2-z1)*(y3-y1);

B=(x3-x1)*(z2-z1)-(x2-x1)*(z3-z1);

C=(x2-x1)*(y3-y1)-(x3-x1)*(y2-y1);

then, obtaining the value of D through D= - (A x1+B x y1+C x z 1);

substituting the top plane coordinates of the four leveling screws into the obtained plane formula to obtain four-point vertical coordinates Z1, Z2, Z3 and Z4, wherein the four leveling screws need to move along the negative direction of the vertical direction by the numerical values Z1, Z2, Z3 and Z4;

finally, after the driven bevel gear rotates for N circles, the moving distance of the leveling screw is set as a unit 1, and the transmission ratio of the driving bevel gear and the driven bevel gear is set as a known constant i, so that the calculation module calculates the number of turns N of the driving bevel gear by the distance and the transmission ratio of the four leveling screw which need to move along the vertical direction.

8. The method for using a multifunctional integrated 3D printing module according to claim 6, wherein: in the step S2, the circulating air cleaning assembly is always in a working state, the cleaning fan unit introduces air in the machine body into the activated carbon filter element, the activated carbon filter element is utilized to filter the air, after a set working time period, a cleaning faucet and a fourth XYZ moving platform are opened, the fourth XYZ moving platform drives the cleaning faucet to wash the activated carbon filter element, and waste liquid generated by washing flows into the waste liquid collecting box to be collected;

when the shower nozzle appears blocking up, lose the wire rod separation that extrudees by the shower nozzle between first laser receiver and the first laser emitter, first laser receiver receives the laser signal that first laser emitter sent, judges that the shower nozzle appears blocking up, then clear up blocking up work: firstly, an opening and closing driving motor positioned at one end of a transverse opening and closing rod, which is close to a first vertical opening and closing rod, is started, the driving gear drives an inclined pull rod to rotate, the transverse opening and closing driving motor is closed after the transverse opening and closing rod is opened in place, the opening and closing driving motor positioned at one end of the transverse opening and closing rod, which is close to a second vertical opening and closing rod, is also started, then a lifting driving cylinder is started, the lifting driving cylinder drives an opening and closing assembly to enter the spray head and then closes the lifting driving cylinder, and opens the opening and closing driving cylinder, the opening and closing driving cylinder pushes an opening and closing sleeve to move upwards along a needle tube, and finally, the opening and closing driving motor is started, the umbrella type opening and closing needle is driven to rotate, and the blockage is cleared by means of the rotation of the umbrella type opening and closing needle; reverse operation reset is performed after the blockage removal is completed;

When the ambient temperature is higher than the set maximum ambient temperature, the cold air separated from the compressed air after passing through the vortex tube is stored in a cold air box, an air supply fan and a cold air valve are opened, the cold air enters the machine body from the cold air box to cool until the temperature collected by the temperature sensor is lower than the set maximum ambient temperature, and the air supply fan and the cold air valve are closed;

when the ambient temperature is less than the set minimum ambient temperature, hot air separated from compressed air after passing through the vortex tube is stored in a hot air box, an air supply fan and a hot air valve are opened, hot air enters the machine body from the hot air box to rise temperature until the temperature acquired by a temperature sensor is greater than the set minimum ambient temperature, and the air supply fan and the hot air valve are closed;

when the ambient humidity is greater than the set ambient humidity, the humidity exhaust fan set is turned on, the humid air in the machine body is introduced into the air drying box by means of the humidity exhaust fan set, the water vapor in the humid air is absorbed by the calcium chloride in the air drying box and converted into liquid, the dried air reenters the machine body, and the liquid water is discharged into the water collecting box.