CN108859111A - A kind of the 3D printing spray head and method of the photocuring Multi-layer synchronous printing based on 3DP - Google Patents

Abstract

The 3D printing spray head and method, the printing head for the photocuring Multi-layer synchronous printing based on 3DP that the invention discloses a kind of include resin container, control system, feeder sleeve one to feeder sleeve five, print carriage, printing head one to five, first groups of ultraviolet light sources of printing head, second group of ultraviolet light source and solenoid valve one to solenoid valve five.Resin container is located on the upside of print carriage, feeder sleeve one to feeder sleeve five respectively on connect resin container, under connect the printing head one that is installed on print carriage to printing head five, first group of ultraviolet light source and second group of ultraviolet light source separately include three ultraviolet light source lamps, five printing head two sides are located at, solenoid valve one to solenoid valve five is respectively arranged on five feeder sleeves.The present invention has a manufacture of disposable three layers of printing, and the manufacturing cycle is short and the fireballing feature of printing shaping.

Description

A kind of the 3D printing spray head and method of the photocuring Multi-layer synchronous printing based on 3DP

Technical field

The invention belongs to 3D printing technique fields, and in particular to a kind of 3D of the photocuring Multi-layer synchronous printing based on 3DP Printing head and method.

Background technique

3D printing, that is, rapid prototyping technology one kind, it is based on a digital model file, with powder, Filamentous material Material, liquid curable material construct the technology of object by layer-by-layer printing.3D printing is a kind of increasing material manufacturing skill Art is superimposed after shaping from level to level after being sliced 3D solid by layer section of outline and obtains final part.

The common 3D printing technique of existing market includes：Stereolithography (Stereo lithography Apparatus, SLA), fusion sediment rapid shaping (Fused Deposition Modeling, FDM), three-dimensional powder bonding forming (Three Dimensional Printing and Gluing, 3DP), selective laser sintering and moulding (Selective Laser Sintering, SLS) etc..

Photocuring technology (SLA) focuses on photo-curing material surface with the laser of specific wavelength and intensity, be allowed to by point to Line completes the drawing performance of a level by line to face consecutive solidification, and then lifting platform is in the mobile synusia of vertical direction Highly, another level of resolidification is layering constitutes a 3D solid in this way.

3DP technology uses powder material forming, such as ceramic powders, metal powder.Specific embodiment is as follows：Upper one layer viscous After knot, moulding cylinder declines a distance and (is equal to thickness：0.013~0.1mm), powder supply cylinder rises a height, releases several Powder, and moulding cylinder is shifted by powder-laying roller, pave and is compacted.Spray head under the control of the computer, by next construction section at Selectively jet binder builds level to graphic data.Extra powder is collected by powder collection device when powder-laying roller powdering.So week And ground powder feeding, powdering and jet binder are renewed, it is finally completed the bonding of a three-dimensional powder.Not by the place of jet binder It for dry powder, plays a supportive role in forming process, and is removed after shaping.

Summary of the invention

It is an object of the invention to solve to problem of the existing technology, a kind of photocuring based on 3DP is provided The 3D printing spray head and method of Multi-layer synchronous printing, the printing head have the manufacture of disposable three layers of printing, manufacture week Phase is short and the fireballing feature of printing shaping.

To achieve the above object, technical solution of the present invention is as follows：

A kind of 3D printing spray head of the photocuring Multi-layer synchronous printing based on 3DP, by resin container, control system, feeder sleeve One to feeder sleeve five, print carriage, printing head one to five, first groups of ultraviolet light sources of printing head, second group of ultraviolet Source and solenoid valve one to solenoid valve five form.Resin container is located on the upside of print carriage, feeder sleeve one to feeder sleeve five respectively on Connect resin container, under connect the printing head one that is installed on print carriage to printing head five, first group of ultraviolet light source and second Group ultraviolet light source separately includes three ultraviolet light source lamps, is located at five printing head two sides, solenoid valve one to electromagnetism Valve five is respectively arranged on five feeder sleeves.

In the 3D printing spray head of the above-mentioned photocuring Multi-layer synchronous printing based on 3DP, the resin container is provided with liquid light Quick resin is connected by five feeder sleeves with five printing heads.

In the 3D printing spray head of the above-mentioned photocuring Multi-layer synchronous printing based on 3DP, the feeder sleeve shares five, every Feeder sleeve one end connects resin container, the corresponding printing head of other end connection.

In the 3D printing spray head of the above-mentioned photocuring Multi-layer synchronous printing based on 3DP, the print carriage lower end installation five A printing head and two groups of ultraviolet light sources, print carriage lower surface is altogether there are three level, and vertical range is between each level One thickness installs a printing head on the subsurface of lower end, is symmetrically installed two printing heads, lower end on the intermediate surface of lower end Two printing heads are symmetrically installed on face layer.

It is above-mentioned based on 3DP photocuring Multi-layer synchronous printing 3D printing spray head in, the printing head altogether there are five, often It is provided with agitating auger paddle in a printing head, is vacuum in the spray head, the outlet of the spray head is cylindrical, and injection side To perpendicular to print platform.

In the 3D printing spray head of the above-mentioned photocuring Multi-layer synchronous printing based on 3DP, what the ultraviolet light source was issued The wave-length coverage of ultraviolet light is 300nm~400nm, and power bracket is 30~90mW, and the ultraviolet light source shares two groups, the There are three one group of ultraviolet light source is total, it is located at printing head one, printing head two, three right side of printing head, printing is sprayed The liquid photosensitive resin that first, printing head two, printing head three spray is irradiated solidification, and second group of ultraviolet light source is shared Three, it is located at printing head one, printing head four, five left side of printing head, to printing head one, printing head four, is beaten The liquid photosensitive resin that print spray head five sprays is irradiated solidification.

It is above-mentioned based on 3DP photocuring Multi-layer synchronous printing 3D printing spray head in, the solenoid valve altogether there are five, use Direct-acting electromagnetic valve is respectively arranged on five feeder sleeves, is controlled by control system, and valve is opened when energization, in feeder sleeve Liquid photosensitive resin is flowed from resin container to printing head, and valve is closed when power-off, and the liquid photosensitive resin in feeder sleeve stops It is flowed from resin container to printing head.

Compared with prior art, the invention has the advantages that, this printing head has disposable three layers of printing Manufacture, the manufacturing cycle is short and the fireballing feature of printing shaping.

Detailed description of the invention

Fig. 1 is the 3D printing nozzle structure schematic diagram of the photocuring Multi-layer synchronous printing based on 3DP.

The title of each number designation is respectively in figure：1- resin container, 2- feeder sleeve one, 3- feeder sleeve two, 4- feeder sleeve three, 5- feeder sleeve four, 6- feeder sleeve five, 7- print carriage, 8- solenoid valve one, 9- solenoid valve two, 10- solenoid valve three, 11- solenoid valve Four, 12- solenoid valve five, 13- printing head one, 14- printing head two, 15- printing head three, 16- printing head four, 17- is beaten Print spray head five, first group of ultraviolet light source of 18-, second group of ultraviolet light source of 19-.

Specific embodiment

The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments, but practical application form of the invention It is not limited in the embodiment of diagram.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creation Property labour under the premise of every other embodiment obtained, should all be considered to belong to the scope of protection of the invention.

Referring to the 3D printing spray head of the photocuring Multi-layer synchronous printing of the present invention based on 3DP of attached drawing 1 by resin container 1, control system, feeder sleeve 1, feeder sleeve 23, feeder sleeve 34, feeder sleeve 45, feeder sleeve 56, print carriage 7, solenoid valve One 8, solenoid valve 29, solenoid valve 3 10, solenoid valve 4 11, solenoid valve 5 12, printing head 1, printing head 2 14, printing Spray head 3 15, printing head 4 16,5 17, first groups of printing head, 18, second groups of ultraviolet light source ultraviolet light source 19 composition. Resin container 1 is located at the upside of print carriage 7, feeder sleeve one to feeder sleeve 5 2~6 respectively on connect resin container 1, under connect and be installed on printing Printing head one on bracket 7 is to printing head 5 13~17, first group of ultraviolet light source 18 and second group of ultraviolet light source 19 Three ultraviolet light source lamps are separately included, are located at five 13~17 two sides of printing head, solenoid valve one to solenoid valve 5 8~ 12 are respectively arranged on five feeder sleeves 2~6.

The control system carries out the power-off control that is powered to solenoid valve 8~12, and valve is opened when energization, in feeder sleeve 2~6 Liquid photosensitive resin flowed from resin container 1 to printing head 13~17, valve is closed when power-off, the liquid in feeder sleeve 2~6 Photosensitive resin stops being flowed from resin container 1 to printing head 13~17, when printing head carries out first three layers of printing, control System activates printing head 1, printing head 2 14, printing head 3 15, solenoid valve 1, solenoid valve 29, solenoid valve 3 10 And first group of ultraviolet light source 18, after completing first three levels printing, print carriage 7 moves up the vertical of three thickness Distance, when printing head carries out second three layers of printing, control system activation printing head 1, is beaten printing head 4 16 Spray head 5 17, solenoid valve 1, solenoid valve 4 11, solenoid valve 5 12 and second group of ultraviolet light source 19 are printed, completes second three Level printing, cycle alternation printing, until completing the printing and making of 3D solid.

As shown in Figure 1, the 3D printing spray head working method that should be printed based on the photocuring Multi-layer synchronous of 3DP is as follows：

Step 1：3D printing spray head, control system are opened, and resin storage tank 1 is full of liquid photosensitive resin；

Step 2：Control system activates printing head 1, printing head 2 14, printing head 3 15, solenoid valve 1, electricity Magnet valve 29, solenoid valve 3 10 and first group of ultraviolet light source 18 complete first three levels printing；

Step 3：Print carriage 7 moves up the vertical range of three thickness, and control system activation printing head 1 is beaten Print spray head 4 16, printing head 5 17, solenoid valve 1, solenoid valve 4 11, solenoid valve 5 12 and second group of ultraviolet light source 19, complete next three levels printing；

Step 4：Step 2, step 3 are repeated, the printing and making until completing 3D solid.

Step 5：Control system disconnects all element controls, and print carriage 7 playbacks, and removes physical model, printing finishes.

Claims (6)

1. a kind of 3D printing spray head of the photocuring Multi-layer synchronous printing based on 3DP, it is characterised in that：Including resin container (1), control System processed, feeder sleeve one (2), feeder sleeve two (3), feeder sleeve three (4), feeder sleeve four (5), feeder sleeve five (6), print carriage (7), solenoid valve one (8), solenoid valve two (9), solenoid valve three (10), solenoid valve four (11), solenoid valve five (12), printing head one (13), printing head two (14), printing head three (15), printing head four (16), printing head five (17), first group of ultraviolet light Light source (18) and second group of ultraviolet light source (19), resin container (1) are located on the upside of print carriage (7), feeder sleeve one to feed Pipe five (2~6) respectively on connect resin container (1), under connect the printing head one that is installed on print carriage (7) to printing head five (13~17), first group of ultraviolet light source (18) and second group of ultraviolet light source (19) separately include three ultraviolet light source lamps, Five printing head (13~17) two sides are located at, solenoid valve one to solenoid valve five (8~12) is respectively arranged in five feed It manages on (2~6).

2. a kind of 3D printing spray head of photocuring Multi-layer synchronous printing based on 3DP according to claim 1, feature exist In：The feeder sleeve (2~6) shares five, and every feeder sleeve one end connects resin container (1), corresponding to other end connection Printing head (13~17).

3. a kind of 3D printing spray head of photocuring Multi-layer synchronous printing based on 3DP according to claim 1, feature exist In：Print carriage (7) lower end is installed by five printing heads (13~17) and two groups of ultraviolet light sources (18,19), printing Bracket (7) lower surface is altogether there are three level, and vertical range is a thickness between each level, installs one on the subsurface of lower end Printing head (13) is symmetrically installed two printing heads (14,16) on the intermediate surface of lower end, is symmetrically installed two on the face layer of lower end A printing head (15,17).

4. a kind of 3D printing spray head of photocuring Multi-layer synchronous printing based on 3DP according to claim 1, feature exist In：The wave-length coverage for the ultraviolet light that the ultraviolet light source (18,19) is issued is 300nm~400nm, and power bracket is 30~90mW, the ultraviolet light source (18,19) share two groups, and first group of ultraviolet light source (18) is located at there are three being total to Printing head one (13), printing head two (14), printing head three (15) right side, to printing head one (13), printing head two (14), the liquid photosensitive resin that printing head three (15) sprays is irradiated solidification, and second group of ultraviolet light source (19) shares three It is a, be located at printing head one (13), printing head four (16), on the left of printing head five (17), to printing head one (13), The liquid photosensitive resin that printing head four (16), printing head five (17) spray is irradiated solidification.

5. a kind of 3D printing spray head of photocuring Multi-layer synchronous printing based on 3DP according to claim 1, feature exist In：There are five the solenoid valve (8~12) is total, using direct-acting electromagnetic valve, it is respectively arranged on five feeder sleeves (2~6), It is controlled by control system, valve is opened when energization, and the liquid photosensitive resin in feeder sleeve (2~6) is sprayed from resin container (1) to printing Head (13~17) flowing, valve is closed when power-off, and the liquid photosensitive resin in feeder sleeve (2~6) stops from resin container (1) to beating Print spray head (13~17) flowing.

6. it is a kind of using claim 1-5 it is one of any described in the 3D printing of the photocuring Multi-layer synchronous printing based on 3DP spray Head and method, which is characterized in that include the following steps：

Step 1：3D printing spray head, control system are opened, and resin storage tank is full of liquid photosensitive resin；

Step 2：Control system activates printing head one, printing head two, printing head three, solenoid valve one, solenoid valve two, electromagnetism Valve three and first group of ultraviolet light source complete first three levels printing；

Step 3：Print carriage moves up the vertical range of three thickness, and control system activates printing head one, printing head Four, printing head five, solenoid valve one, solenoid valve four, solenoid valve five and second group of ultraviolet light source are completed next three level and are beaten Print；

Step 4：Step 2, step 3 are repeated, the printing and making until completing 3D solid.

Step 5：Control system disconnects all element controls, and print carriage playback removes physical model, printing finishes.