CN112644021A

CN112644021A - 3D prints shower nozzle and equipment with surface treatment

Info

Publication number: CN112644021A
Application number: CN202011445799.7A
Authority: CN
Inventors: 朱协彬; 陈志浩; 赵禹; 李建生; 彭浩源; 孙正君; 孙祖亮
Original assignee: Anhui Polytechnic University
Current assignee: Anhui Polytechnic University
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-04-13
Anticipated expiration: 2040-12-09
Also published as: CN112644021B

Abstract

The invention discloses a 3D printing nozzle with surface treatment and equipment, belonging to the field of 3D printing, wherein the 3D printing nozzle comprises a lifting plate for bearing the printing nozzle, a rotatable rotating cylinder is sleeved outside the lifting plate, the lower end of the rotating cylinder is connected with a nozzle mounting block provided with a treatment liquid nozzle and a blowing nozzle, and the nozzle mounting block is connected with a second hydraulic cylinder capable of horizontally stretching; the 3D printing equipment comprises the 3D printing nozzle, an air collecting box, a driving button and a lug fixed on the thick rotating shaft, and the rising action of the 3D printing nozzle and the transmission linkage of the thick rotating shaft are realized through the arrangement of a rack and a large gear; the air collecting box is connected with the blowing nozzle through a pipeline, and the fan is coaxially connected with a pinion meshed with the gearwheel through a thin rotating shaft. The invention has better surface treatment function and better adaptability; the complete treatment of the appearance of the printed product can be ensured, and the printing efficiency can be improved; but also can save the cost and is convenient to control.

Description

3D prints shower nozzle and equipment with surface treatment

Technical Field

The invention relates to the field of 3D printing, in particular to a 3D printing nozzle with surface treatment and equipment.

Background

3D printing (3D printing), namely a technological product of rapid prototyping technology. It is a technology for constructing objects by layer-by-layer printing using bondable materials such as powdered metals or plastics based on digital model files. The 3D prints the shower nozzle through extruding the printing raw materials to 3D print platform on, forms three-dimensional entity then, beats printer head mainly and utilizes the continuous extrusion of formation of image printing raw materials, extrudees the spout of the printing raw materials of melt form through the nozzle, then the melt form prints the raw materials and piles up layer upon layer and realize the three-dimensional object shaping. The PVC linear material is formed by adopting a layering accumulation method, for example, the PVC linear material is driven to rotate by a stepping motor, the PVC material is sent into a spray head by the pressure of the gear, and is sprayed out after being heated and dissolved into fluid by utilizing the heat dissolution and condensation solidification principles of the PVC material, and finally, three-dimensional objects in various required shapes are formed by layer when the PVC linear material is cooled; the metal printing uses high-function laser or electron beam as heat source to melt metal powder layer by layer to form needed metal solid object; spraying glue when printing the gypsum, and bonding layer by layer to realize a gypsum object; the chocolate is printed by spraying the chocolate layer by layer in an injection type spray head mode, and the like. The sculpturable soft bondable material of the printed ceramic paste type may also be screw extruded.

The existing 3D printer adopting spiral extrusion ejects materials through a nozzle, the smaller the nozzle is, the higher the surface precision is, and the material particles must be processed to be small enough. Because the sculptable soft material is generally larger than the particles of the PVC material. Namely, the particles of the PVC material are obtained, and the printed surface has concave-convex. This is due to the printing principle. Products having fine irregularities on the surface thereof are undesirable products for use in artificial ceramic bones, teeth, parts and the like for medical use. For example, ceramic dentures installed in medicine have minute irregularities which are not conducive to cleaning. With the micro-relief industrial ceramic parts, the friction force increases (except for the intentional increase of friction force). Therefore, the 3D printed product needs to be subjected to surface treatment to improve the smoothness of the surface of the product.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a 3D printing nozzle with surface treatment and equipment, which have a better surface treatment function and better adaptability; the complete treatment of the appearance of the printed product can be ensured, and the printing efficiency can be improved; but also can save the cost and is convenient to control.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

a D printing nozzle with surface treatment and equipment comprises a printing nozzle, wherein the printing nozzle is installed on the bottom surface of a lifting plate which is horizontally arranged, a nozzle driving mechanism used for driving the printing nozzle to move is arranged on the bottom surface of the lifting plate, the lifting plate is a circular plate, a vertically arranged rotating cylinder body is sleeved on the outer side of the lifting plate, the rotating cylinder body is connected with the lifting plate through a first bearing, at least one nozzle installation block is installed at the lower end of the rotating cylinder body at equal intervals along the peripheral side of the rotating cylinder body, the outlet end of the nozzle installation block faces to the side of the central axis of the lifting plate, a treatment liquid nozzle is installed on the nozzle installation block, the input end of the treatment liquid nozzle is connected with a liquid discharge hose, and an electromagnetic valve is arranged on the liquid discharge hose; the improved lifting mechanism is characterized in that a horizontally arranged fixed gear ring is fixed at the upper end of the inner side face of the rotary cylinder, a vertically arranged motor is fixed on one side of the upper end face of the lifting plate, a driving gear meshed with the fixed gear ring is fixedly sleeved on an output shaft of the motor, and a vertically arranged first hydraulic cylinder is connected to the top face of the lifting plate.

Furthermore, the connecting end of the nozzle mounting block is connected with a second hydraulic cylinder which is horizontally arranged, and the bottom of the second hydraulic cylinder is connected with a supporting plate which is fixedly connected with the rotating cylinder body. Can drive shower nozzle installation piece through the second pneumatic cylinder and move on the horizontal direction, make its printing product that can be better be adapted to different widths.

Furthermore, a limiting block is fixedly connected between the supporting plate and the rotating cylinder body, a through hole for the second hydraulic cylinder to pass through is horizontally arranged on the limiting block in a penetrating mode, and the sprayer mounting block is arranged on one side, back to the second hydraulic cylinder, of the limiting block. The limiting block with the through hole can limit the mounting position of the second hydraulic cylinder, and the spray head mounting block is prevented from deviating.

Furthermore, the nozzle mounting block is provided with a blowing nozzle positioned on one side of the treatment fluid nozzle, the input end of the blowing nozzle is connected with an exhaust branch pipe, and the exhaust branch pipe is provided with an electromagnetic valve. The blowing nozzle is arranged to blow air to the printing product attached with the treatment fluid, so that the treatment fluid is promoted to solidify and the printing product is integrated.

Furthermore, the motor is a forward and reverse rotation motor, the cross section of the spray head mounting block is arc-shaped, and two blowing spray heads which are respectively positioned at two sides of the treatment liquid spray head are mounted on the spray head mounting block. The rotating cylinder body can be driven by the forward and reverse rotating motor to rotate forward and then reset in a reverse rotating mode, the nozzle mounting block rotates along with the rotating cylinder body, and the liquid discharge hose and the air exhaust branch pipe can be effectively prevented from being wound on other mechanisms; the treatment fluid shower nozzle can be along with shower nozzle installation piece round trip movement together, so all set up the shower nozzle of blowing in the both sides of treatment fluid shower nozzle, can guarantee at the unidirectional movement in-process of treatment fluid shower nozzle, all have a shower nozzle of blowing to the treatment fluid of just spraying behind the treatment fluid shower nozzle, can ensure the effect that promotes the solidification of treatment fluid.

Further, the week side of lifter plate is fixed with the direction ring body that the level set up, and in the direction ring body embedding rotated the barrel, set up on the inside wall of rotation barrel and supply direction ring body embedding and pivoted ring channel. The lifting plate is inserted into the rotary cylinder body through the guide ring body and the annular groove, so that the lifting plate can synchronously drive the rotary cylinder body to perform lifting movement in the lifting movement process, and the rotation of the lifting plate relative to the rotary cylinder body is not influenced.

The invention also provides D printing equipment with surface treatment, which comprises a main machine body, wherein the upper end surface of the main machine body is provided with a bearing plate, the upper end of the main machine body is connected with a frame plate, and the D printing equipment is characterized in that the frame plate is provided with a D printing spray head with surface treatment, the D printing spray head is positioned right above the bearing plate, the first hydraulic cylinder is arranged at the top of the frame plate, the upper end surface of the lifting plate is fixedly provided with a vertically arranged rack, the top plate part of the frame plate is provided with two through holes for the output end of the first hydraulic cylinder and the rack to pass through respectively, one side of the rack is provided with a large gear in an engaged manner, the axis of the large gear is fixedly provided with a thick rotating shaft in a penetrating manner, the two ends of the thick rotating shaft are respectively connected with a fixing plate fixedly connected with the top plate part of the frame plate through bearings, at least one lug used for triggering the driving button is fixed on the thick rotating shaft at equal intervals along the peripheral side of the thick rotating shaft at the position aligned with the driving button.

Further, the gear wheel meshing type that one side of rack dorsad is equipped with a pinion, the fixed through type is equipped with a thin pivot on the axis of pinion, the one end of thin pivot is connected with the collection bellows that divides fixed connection with the frame plate roof, the corresponding end of thin pivot extends to the collection bellows inside and fixed cover is equipped with the fan, the position department that supplies the thin pivot to pass on the collection bellows is equipped with the second bearing, another second bearing and frame plate fixed connection are passed through to the one end of thin pivot dorsad collection bellows, an air intake has been seted up on the panel that collection bellows is located fan the place ahead, collection bellows is located and is connected with the hose of airing exhaust on the panel at fan rear, the output of the hose of airing exhaust communicates with the input of the branch pipe of airing exhaust, and is equipped with the check valve on. After the air collecting box and a related structure are arranged, the rotation of the large gear can drive the small gear to rotate, the rotation ratio of the large gear and the small gear is matched, the rotation speed of the small gear is larger than that of the large gear, the thin rotating shaft rotates along with the small gear to drive the fan to rotate, air can be sucked into the air collecting box through the air inlet and is delivered into the exhaust branch pipe through the exhaust hose, after the electromagnetic valve on the exhaust branch pipe is opened, air can be blown to a printing product sprayed with treatment liquid through the air blowing nozzle, and the solidification of the treatment liquid and the printing product can be promoted to be integrated.

Furthermore, an electric heating element positioned between the fan and the air exhaust hose is arranged inside the air collecting box. When the device is used, the electric heating piece is electrified, the electric heating piece converts electric energy into heat energy, air entering the air collecting box can be heated, hot air is formed in the air collecting box, the hot air is blown to a printing product sprayed with the treatment fluid through the air exhaust hose and the air exhaust branch pipe, and the treatment fluid solidification can be further promoted.

3. Advantageous effects

(1) The 3D printing nozzle is provided with the lifting plate used for bearing the printing nozzle and the nozzle driving mechanism, the lifting plate is driven by the hydraulic cylinder to move up and down, the rotatable rotating cylinder is sleeved outside the lifting plate, the lower end of the rotating cylinder is connected with the treatment liquid nozzle, when the 3D printing nozzle is applied, the rotating cylinder is driven to rotate, the treatment liquid nozzle rotates along with the rotatable rotating cylinder, treatment liquid can be sprayed on a printed product while rotating around the printed product, and the periphery of the printed product is sprayed with the treatment liquid. Due to the principle of surface tension of the liquid of the treatment liquid, fine concave-convex parts of the printed product are covered by the sprayed concentrated liquid, namely a layer of smooth 'clothes' is worn on the surface of the printed product, and the surface of the printed product can have higher smoothness after the treatment liquid is solidified, so that the surface treatment method has a surface treatment function.

(2) The 3D printing nozzle is provided with the nozzle mounting block for mounting the treatment liquid nozzle, the blowing nozzle which is positioned at one side of the treatment liquid nozzle and used for blowing air is mounted on the nozzle mounting block, and the blowing nozzle can blow the printing product attached with the treatment liquid to promote the treatment liquid to be solidified and the printing product to be integrated.

(3) The 3D printing nozzle is provided with the second hydraulic cylinder connected with the nozzle mounting block, and the second hydraulic cylinder can drive the nozzle mounting block to move in the horizontal direction, so that the treatment liquid nozzle and the blowing nozzle can be better suitable for printing products with different widths.

(4) The 3D printing equipment comprises the 3D printing nozzle, a driving button and a bump which is fixed on the thick rotating shaft and used for triggering the driving button are further arranged, the rising action of the 3D printing nozzle is in transmission linkage with the thick rotating shaft through the arrangement of the rack and the big gear, the 3D printing nozzle body gradually rises in the printing process, the thick rotating shaft can be driven to rotate through the transmission of the rack and the big gear, the bump rotates along with the thick rotating shaft, when the 3D printing nozzle rises to a certain height (namely, a printed product is successfully printed to a corresponding height), the bump just triggers the driving button, namely, the rotating cylinder is driven to rotate through the controller, the corresponding electromagnetic valve is opened, the spraying of the treatment liquid is started, namely, when the printed product with the certain height is printed, the treatment liquid spraying of the printing product with the height is carried out once, and the production process of layer by layer printing and molding of the 3, the full spraying of the outer surface of a printed product can be ensured, and the printing operation of the printing nozzle at the current height position can be not suspended in the process of spraying the treatment liquid, so that the printing efficiency can be improved.

(5) The 3D printing equipment comprises an air collecting box in which a fan is arranged, wherein the air collecting box is connected with a blowing nozzle through a pipeline, the fan is coaxially connected with a small gear meshed with a large gear through a thin rotating shaft, and when the 3D printing equipment is applied, the thin rotating shaft and the fan are driven to rotate through the transmission of a rack, the large gear and the small gear by the ascending action of the 3D printing nozzle, so that the air collecting function is realized, and the air is provided for the blowing of the blowing nozzle subsequently. The invention realizes the wind collecting function by utilizing the existing power source, does not need to additionally arrange wind collecting power, can save cost and is convenient to control.

In conclusion, the invention has better surface treatment function and better adaptability; the complete treatment of the appearance of the printed product can be ensured, and the printing efficiency can be improved; but also can save the cost and is convenient to control.

Drawings

Fig. 1 is a cross-sectional view of a 3D printing head according to the present invention, taken along a vertical center plane in the transverse direction, in which an exhaust branch pipe 30 and a discharge hose 34 are not shown;

FIG. 2 is an enlarged view of the structure of the area A in FIG. 1;

fig. 3 is a partial cross-sectional view of the 3D printing apparatus according to the present invention, in which the 3D printing head and the frame plate 6 are partially cut away along a vertical center plane in the transverse direction;

fig. 4 is a partial schematic view of the 3D printing apparatus taken along a vertical plane behind the bull gear 14;

FIG. 5 is a side view of the bull gear 14, the windbox 11 and related structures;

FIG. 6 is a schematic view of the internal structure of the wind-collecting box 11;

fig. 7 is a plan view of the head mounting block 2 and the second hydraulic cylinder 4.

Reference numerals: 1. a main body; 2. a nozzle mounting block; 3. a support plate; 4. a second hydraulic cylinder; 5. a limiting block; 6. a frame plate; 7. a motor; 8. a driving gear; 9. a first hydraulic cylinder; 10. a rack; 11. an air collecting box; 12. a pinion gear; 13. fixing the gear ring; 14. a bull gear; 15. printing a spray head; 16. a carrier plate; 17. a lifting plate; 18. a first bearing; 19. rotating the cylinder; 20. a thin rotating shaft; 21. a thick rotating shaft; 22. a bump; 23. a drive button; 24. an air inlet; 25. a second bearing; 26. a fixing plate; 27. an air exhaust hose; 28. an electric heating element; 29. a fan; 30. an exhaust branch pipe; 31. an electromagnetic valve; 32. a blowing nozzle; 33. a treatment liquid spray head; 34. a drain hose; 35. a guide ring body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1, the 3D printing nozzle with surface treatment includes a printing nozzle 15, the printing nozzle 15 is installed on a bottom surface of a lifting plate 17 horizontally disposed, and a nozzle driving mechanism for driving the printing nozzle 15 to move is provided on the bottom surface of the lifting plate 17 (the nozzle driving mechanism for driving the printing nozzle 15 to move is a mature technical structure in the prior art, and is not described herein, and is not specifically shown in the drawings), the lifting plate 17 is a circular plate, and a vertically disposed rotating cylinder 19 is sleeved on an outer side of the lifting plate 17, as shown in fig. 2, the rotating cylinder 19 is connected with the lifting plate 17 through a first bearing 18, at least one nozzle installation block 2 (only one nozzle installation block 2 is shown in the drawings) is installed at a lower end of the rotating cylinder 19 at equal interval along a peripheral side thereof, an outlet end of the nozzle installation block 2 faces a side of a central axis of the lifting plate 17, as shown in fig. 7, a treatment liquid nozzle 33 is installed on the nozzle installation block 2, a liquid discharge hose 34 is connected to an input end of the treatment liquid nozzle 33, and an electromagnetic valve 31 is arranged on the liquid discharge hose 34; the upper end of the inner side face of the rotary cylinder 19 is fixed with a fixed gear ring 13 which is horizontally arranged, one side of the upper end face of the lifting plate 17 is fixed with a vertically arranged motor 7, an output shaft of the motor 7 is fixedly sleeved with a driving gear 8 which is meshed with the fixed gear ring 13, and the top face of the lifting plate 17 is connected with a vertically arranged first hydraulic cylinder 9.

In this embodiment, as shown in fig. 1, the connection end of the nozzle mounting block 2 is connected to a second hydraulic cylinder 4 horizontally disposed, and the bottom of the second hydraulic cylinder 4 is connected to a support plate 3 fixedly connected to the rotary cylinder 19. Can drive shower nozzle installation piece 2 through second pneumatic cylinder 4 and move on the horizontal direction, make its printing product that can be better be adapted to different widths.

In this embodiment, as shown in fig. 1, fixedly connected with stopper 5 between backup pad 3 and the rotation barrel 19, just the through-hole that supplies second pneumatic cylinder 4 to pass is worn to be equipped with by stopper 5 improved level, one side of stopper 5 dorsad second pneumatic cylinder 4 is located to shower nozzle installation piece 2. The limiting block 5 with the through hole can limit the installation position of the second hydraulic cylinder 4, and prevents the spray head installation block 2 from deviating.

In this embodiment, as shown in fig. 7, a blowing nozzle 32 is installed on the nozzle mounting block 2 on the side of the processing liquid nozzle 33, an input end of the blowing nozzle 32 is connected to an exhaust branch pipe 30, and an electromagnetic valve 31 is provided on the exhaust branch pipe 30. The blowing nozzle 32 is provided to blow the printing product to which the treatment liquid is attached, so as to promote the treatment liquid to be solidified and the printing product to be integrated.

In this embodiment, as shown in fig. 2, a horizontally disposed guide ring body 35 is fixed on the periphery of the lifting plate 17, the guide ring body 35 is embedded in the rotating cylinder 19, and an annular groove for the guide ring body 35 to be embedded and rotate is opened on the inner side wall of the rotating cylinder 19. The insertion of the lifting plate 17 and the rotating cylinder 19 is realized through the guide ring body 35 and the annular groove, so that the lifting plate 17 can ensure that the rotating cylinder 19 is synchronously driven to perform lifting movement in the lifting movement process, and the rotation of the lifting plate 17 relative to the rotating cylinder 19 is not influenced.

The 3D printing device applied by the 3D printing nozzle with surface treatment comprises, as shown in fig. 3, a main body 1 provided with a bearing plate 16 on the upper end surface, the upper end of the main body 1 is connected with a frame plate 6, and is characterized in that the frame plate 6 is provided with the 3D printing nozzle with surface treatment positioned right above the bearing plate 16, the first hydraulic cylinder 9 is installed on the top of the frame plate 6, the upper end surface of the lifting plate 17 is fixed with a vertically arranged rack 10, the top plate part of the frame plate 6 is provided with two through holes for the output end of the first hydraulic cylinder 9 and the rack 10 to pass through respectively, one side of the rack 10 is provided with a large gear 14, as shown in fig. 4 and 5, the axis of the large gear 14 is fixedly provided with a thick rotating shaft 21 in a penetrating manner, two ends of the thick rotating shaft 21 are respectively connected with a fixing plate 26 fixedly connected with the top plate part of the frame plate 6 through bearings, a driving button 23 for controlling the motor 7 and the electromagnetic valve 31 to be electrified to open is installed on the lower end face of the top plate part of the frame plate 6, and at least one lug 22 (only one lug 22 is shown in the figure) for triggering the driving button 23 is fixed on the thick rotating shaft 21 at the position aligned with the driving button 23 along the circumferential side of the thick rotating shaft at equal intervals;

as shown in fig. 4 and 5, a pinion 12 is engaged with one side of the large gear 14 facing away from the rack 10, a thin rotating shaft 20 is fixedly arranged on an axis of the pinion 12 in a penetrating manner, one end of the thin rotating shaft 20 is connected with a wind collecting box 11 fixedly connected with a top plate part of the frame plate 6, as shown in fig. 6, a corresponding end of the thin rotating shaft 20 extends into the wind collecting box 11 and is fixedly sleeved with a fan 29, a second bearing 25 is arranged at a position on the wind collecting box 11 through which the thin rotating shaft 20 passes, one end of the thin rotating shaft 20 facing away from the wind collecting box 11 is fixedly connected with the frame plate 6 through another second bearing 25, an air inlet 24 is arranged on a panel of the wind collecting box 11 in front of the fan 29, an air exhaust hose 27 is connected on a panel of the wind collecting box 11 behind the fan 29, an output end of the air exhaust hose 27 is communicated with an, and the exhaust hose 27 is provided with a check valve (not shown). After the air collecting box 11 and the related structure are arranged, the rotation of the large gear 14 can drive the small gear 12 to rotate, and the setting of the transmission ratio of the large gear 14 and the small gear 12 is matched, so that the rotation speed of the small gear 12 is greater than that of the large gear 14, the thin rotating shaft 20 rotates along with the small gear 12 to drive the fan 29 to rotate, air can be sucked into the air collecting box 11 through the air inlet 24 and is sent into the exhaust branch pipe 30 through the exhaust hose 27, after the electromagnetic valve 31 on the exhaust branch pipe 30 is opened, the printed product sprayed with the treatment liquid can be blown through the blowing nozzle 32, and the solidification of the treatment liquid and the printed product can be promoted to be integrated.

Example 2

The present embodiment is different from embodiment 1 in that:

for the 3D printing nozzle with surface treatment, in this embodiment, the motor 7 is a forward and backward rotation motor, as shown in fig. 7, the cross section of the nozzle mounting block 2 is arc-shaped, and two blowing nozzles 32 respectively located at two sides of the treatment liquid nozzle 33 are mounted on the nozzle mounting block 2. The rotating cylinder 19 can be driven by the positive and negative rotation motor to rotate positively and then reversely to reset, and the nozzle mounting block 2 rotates along with the rotation, so that the liquid discharge hose 34 and the exhaust branch pipe 30 can be effectively prevented from being wound on other mechanisms; the treatment liquid spray nozzle 33 can move back and forth along with the spray nozzle mounting block 2, so that the air blowing spray nozzles 32 are arranged on the two sides of the treatment liquid spray nozzle 33, and in the one-way movement process of the treatment liquid spray nozzle 33, one air blowing spray nozzle 32 can blow the treatment liquid which is just sprayed behind the treatment liquid spray nozzle 33, namely, the effect of promoting the solidification of the treatment liquid can be guaranteed.

With respect to the 3D printing apparatus to which the above-described surface-treated 3D printing head is applied, in the present embodiment, as shown in fig. 6, the air collection box 11 is internally mounted with the electrothermal member 28 between the fan 29 and the air exhaust hose 27. When the device is used, the electric heating element 28 is electrified, the electric heating element 28 converts electric energy into heat energy, the air entering the air collection box 11 can be heated, hot air is formed in the air collection box 11, the hot air is blown to a printing product sprayed with the treatment liquid through the exhaust hose 27 and the exhaust branch pipe 30, and the treatment liquid solidification can be further promoted.

Otherwise, the same procedure as in example 1 was repeated.

The specific action principle of the 3D printing nozzle with the surface treatment and the equipment is as follows:

after the liquid discharge hose 34 is connected with the treatment liquid storage tank, the first hydraulic cylinder 9 and the nozzle driving mechanism are started firstly, the driving button 23 is powered on after the printing nozzle 15 starts to ascend, the first hydraulic cylinder 9 drives the lifting plate 17, the nozzle driving mechanism and the printing nozzle 15 to gradually ascend along with the progress of printing products by the printing nozzle 15, the rack 10 ascends along with the ascending to drive the large gear 14 to rotate, and the coarse rotating shaft 21 rotates along with the large gear to drive the lug 22 to rotate; meanwhile, the large gear 14 drives the small gear 12 to rotate, the thin rotating shaft 20 rotates along with the small gear, the fan 29 is driven to rotate, air is sucked into the air collecting box 11 through the air inlet 24, the electric heating piece 28 is arranged to heat the air, and then the air is sent into the exhaust branch pipe 30 through the exhaust hose 27;

when printing the product and printing and accomplish the take the altitude, rack 10 rises the take the altitude promptly, lug 22 rotates to conflict drive button 23, just start motor 7, and open solenoid valve 31, motor 7 drives driving gear 8 and rotates, drive fixed ring gear 13 and rotate then, it rotates barrel 19 thereupon, it rotates around the part of printing the product to drive shower nozzle installation piece 2, and at this in-process, because solenoid valve 31 opens, the treatment fluid passes through treatment fluid shower nozzle 33 spraying on printing the product, then can carry out spraying treatment fluid to the week side of printing the product. Due to the surface tension principle of the processing liquid, fine concave-convex parts of the printed product are covered by the sprayed concentrated liquid, namely a layer of smooth clothes is worn on the surface of the printed product, and the air in the exhaust branch pipe 30 is blown to the printed product through the blowing nozzle 32, so that the processing liquid sprayed on the printed product can be blown to promote the curing of the processing liquid; when the motor 7 and the electromagnetic valve 31 are started, the starting time of the motor 7 and the electromagnetic valve 31 is controlled by a timer and is paused in time for the next starting, the lug 22 continues to rotate after abutting against the driving button 23, the motor 7 and the solenoid valve 31 which are started are operated once and pause before the projection 22 abuts against the driving button 23 again, when the projection 22 abuts against the driving button 23 again, the motor 7 and the solenoid valve 31 are started again, and the operation is repeated, namely, the spraying of the treatment liquid is carried out on the printed product with a certain height once the printed product with the height is printed, the production process of printing and forming the 3D printed product layer by layer is met, can ensure the complete spraying of the appearance of the printed product, and can not pause the printing operation of the printing nozzle 15 at the current height position in the process of spraying the treatment liquid, thereby improving the printing efficiency and finally obtaining a 3D printed product with smooth appearance.

From the above, the invention has better surface treatment function and better adaptability; the complete treatment of the appearance of the printed product can be ensured, and the printing efficiency can be improved; but also can save the cost and is convenient to control.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides a 3D prints shower nozzle with surface treatment, includes prints shower nozzle (15), its characterized in that, print shower nozzle (15) and install on the bottom surface of lifter plate (17) that the level set up, and be equipped with on the bottom surface of lifter plate (17) and be used for the drive to print shower nozzle actuating mechanism that shower nozzle (15) removed, lifter plate (17) are the circular slab, and the outside cover of lifter plate (17) is equipped with the rotation barrel (19) of a vertical setting, be connected through first bearing (18) between rotation barrel (19) and lifter plate (17), the lower extreme that rotates barrel (19) installs at least one shower nozzle installation piece (2) along its week side equidistance, the exit end of shower nozzle installation piece (2) is towards the axis place side of lifter plate (17), install treatment liquid shower nozzle (33) on shower nozzle installation piece (2), the input of treatment liquid shower nozzle (33) is connected with flowing back hose (34), the drainage hose (34) is provided with an electromagnetic valve (31); the utility model discloses a hydraulic cylinder, including rotation barrel (19), fixed ring gear (13) that the medial surface upper end of rotation barrel (19) set up is fixed with a level, one side of lifter plate (17) up end is fixed with motor (7) of a vertical setting, fixed cover is equipped with one and fixes driving gear (8) of ring gear (13) meshing on the output shaft of motor (7), the top surface of lifter plate (17) is connected with first pneumatic cylinder (9) of vertical setting.

2. The 3D printing nozzle with the surface treatment according to claim 1, wherein the connecting end of the nozzle mounting block (2) is connected with a second hydraulic cylinder (4) which is horizontally arranged, and the bottom of the second hydraulic cylinder (4) is connected with a supporting plate (3) which is fixedly connected with the rotating cylinder (19).

3. The 3D printing nozzle with the surface treatment function according to claim 2, wherein a limiting block (5) is fixedly connected between the supporting plate (3) and the rotating cylinder (19), a through hole for the second hydraulic cylinder (4) to pass through is horizontally formed in the limiting block (5), and the nozzle mounting block (2) is arranged on one side, opposite to the second hydraulic cylinder (4), of the limiting block (5).

4. The 3D printing nozzle with the surface treatment according to claim 1, wherein the nozzle mounting block (2) is provided with a blowing nozzle (32) on one side of a treatment liquid nozzle (33), the input end of the blowing nozzle (32) is connected with an exhaust branch pipe (30), and the exhaust branch pipe (30) is provided with an electromagnetic valve (31).

5. The 3D printing nozzle with the surface treatment function according to claim 4, wherein the motor (7) is a forward and reverse motor, the cross section of the nozzle mounting block (2) is arc-shaped, and two blowing nozzles (32) respectively positioned at two sides of the treatment liquid nozzle (33) are mounted on the nozzle mounting block (2).

6. The 3D printing nozzle with the surface treatment function according to any one of claims 1 to 5, wherein a horizontally arranged guide ring body (35) is fixed on the periphery of the lifting plate (17), the guide ring body (35) is embedded into the rotating cylinder (19), and an annular groove for the guide ring body (35) to be embedded and rotate is formed in the inner side wall of the rotating cylinder (19).

7. The utility model provides a 3D printing apparatus with surface treatment, is equipped with host computer body (1) of loading board (16) including the up end, the upper end of host computer body (1) is connected with frame plate (6), a serial communication port, install on frame plate (6) and be located directly over loading board (16) 3D with surface treatment prints the shower nozzle, the top at frame plate (6) is installed in first pneumatic cylinder (9), be fixed with rack (10) of vertical setting on the up end of lifter plate (17), the opening that two outputs that supply first pneumatic cylinder (9) and rack (10) respectively to pass is seted up on the roof portion of frame plate (6), one side joggle formula of rack (10) is equipped with a gear wheel (14), and the fixed through type is equipped with a thick pivot (21) on the axis of gear wheel (14), the both ends of thick pivot (21) are connected with fixed connection's with frame plate (6) roof portion fixed connection fixed plate portion fixed plate (26) through the bearing respectively The lower end face of the top plate part of the frame plate (6) is provided with a control motor (7) and a driving button (23) which is opened by the electromagnetic valve (31) in a power-on mode, and at least one lug (22) used for triggering the driving button (23) is fixed on the thick rotating shaft (21) at equal intervals along the peripheral side of the position aligned to the driving button (23).

8. The 3D printing equipment with the surface treatment function according to claim 7, wherein a small gear (12) is arranged on one side of the large gear (14) opposite to the rack (10) in a meshed mode, a thin rotating shaft (20) is fixedly arranged on the axis of the small gear (12) in a penetrating mode, one end of the thin rotating shaft (20) is connected with a wind collecting box (11) fixedly connected with the top plate part of the frame plate (6), the corresponding end of the thin rotating shaft (20) extends into the wind collecting box (11) and is fixedly sleeved with a fan (29), a second bearing (25) is arranged on the wind collecting box (11) at a position where the thin rotating shaft (20) penetrates, one end of the thin rotating shaft (20) opposite to the wind collecting box (11) is fixedly connected with the frame plate (6) through another second bearing (25), and an air inlet (24) is formed in a panel, located in front of the wind collecting box (11), of the fan (29), the panel of the air collecting box (11) behind the fan (29) is connected with an air exhaust hose (27), and the output end of the air exhaust hose (27) is communicated with the input end of an air exhaust branch pipe (30).

9. 3D printing device with surface treatment according to claim 8, characterized in that inside the air collection box (11) is installed an electric heating element (28) between the fan (29) and the air exhaust hose (27).