CN204095144U - The reservoir of the 3D printer that a kind of high accuracy light-cured resin is shaping - Google Patents

Abstract

A reservoir for the 3D printer that high accuracy light-cured resin is shaping, reservoir is placed on directly over liquid crystal display by reservoir fixed frame; Reservoir base plate is plastic sheeting material, and tightens; And on reservoir base plate, pasting the mould release membrance of a floor height printing opacity, this mould release membrance and the solid resin after printing are easy to peel off, and liquid resin leaves in reservoir.Reservoir base plate not only light transmittance is high but also heat-resisting, ensures that liquid resinous temperature can not be too high, and light direct projection.The mould release membrance that reservoir base plate is arranged is convenient to print separate, has obvious technological progress.

Description

The reservoir of the 3D printer that a kind of high accuracy light-cured resin is shaping

Technical field

The utility model relates to the shaping 3D printer of a kind of light-cured resin, particularly relates to its reservoir.

Background technology

At present, print field at 3D, the regions curing forming technique of photocurable liquid Choice of Resin is a technology branch, because of its high accuracy, high efficiency, will become the mainstream technology of following tabletop machine.Existing photocuring printer is categorized as: 1. laser drawing imaging ultraviolet frequency spectrum photocuring technology, and 2. projector imageization irradiates forming technique, 3. laser scanning imaging photocuring technology.Tens of patents have been applied for both at home and abroad around this area, wherein application number be 201310417401.2 be called the patent of " a kind of face shaping 3D printing device " and the utility model the most close, the concrete structure of this patent application comprises: " liquid holding box, for holding liquid photo-curing material; Processing platform, has the working position being arranged in described liquid holding box, is the shaping supporting platform of product; Driving mechanism, moves up and down in described liquid holding box for driving described processing platform; Projector equipment." light source of this patent application is projector equipment; and projection lens is positioned at the top of processing platform; not only need high power lighting lamp to make light source; and in light-cured resin; the light content being suitable for light-cured resin wavelength is very low, pay very large waste and resin solidification just can be made to produce very little reaction.Simultaneously, projector equipment makes printer volume increase, and first printed product orlop in print procedure, then print platform drops in liquid and prints last layer again, because the semi-finished product after solidification all drop in liquid with print platform in this process, so can't see the process of formed product, if the product printed is higher simultaneously, need enough dark liquid holding box and liquid resin.

Simultaneously, also technical staff king is had to become big " the LCD liquid crystal display selective printing opacity image-forming principle 3D printer imaging system " that disclose its invention on the net, network address is " https://blog.sina.com.cn/s/blog_69c8f72b01017jme.html ", this imaging system principle is described by the disclosure material, but do not relate to complete 3D print apparatus, in schematic diagram disclosed in it, light is being wrong through the direction after Fresnel Lenses simultaneously.Therefore the disclosure material is just open by Some principles, and those skilled in the art can not describe according to it structure deriving 3D printer, therefore do not have practicality.And it is unreasonable to the description of reservoir counterdie, which employs loose transparent membrane structure, and can not tighten, but this structure reflects after light not only being caused to enter reservoir in actual product application, there is no heat insulation effect simultaneously yet, and the Action of Gravity Field that hyaline membrane is subject to liquid easily sinks in centre position, cause hyaline membrane uneven, affect light direct projection inner to reservoir.

Utility model content

In order to solve the problem, the utility model provides the reservoir of the shaping 3D printer of a kind of high accuracy light-cured resin, improves reservoir lower curtate.

The technical solution adopted in the utility model is:

Reservoir is placed on directly over liquid crystal display by reservoir fixed frame; Reservoir base plate is plastic sheeting material, and tightens;

And on reservoir base plate, pasting the mould release membrance of a floor height printing opacity, this mould release membrance and the solid resin after printing are easy to peel off, and liquid resin leaves in reservoir.

With this reservoir with the use of other structure of 3D printer as follows:

Comprise LED light source, by fin and fan cooling after LED light source back channel heat pipe or hot plate heat conduction, fan outlet is arranged on bottom printer;

LED light source is the ultraviolet LED light source of wavelength 375-405NM, arranges light and lead between described LED light source surrounding and the Fresnel Lenses on top;

Described Fresnel Lenses size can cover liquid crystal display, and the distance of Fresnel Lenses and LED light source is 80-90mm, and the liquid crystal display spacing on Fresnel Lenses and top is 8-10mm;

Liquid crystal display is arranged in liquid crystal display housing, and the upper surface level of liquid crystal display upper surface and liquid crystal display housing;

The upper surface of the liquid crystal display housing left and right sides is also provided with reservoir fixed frame;

Arrange print platform on the top of reservoir, print platform upper surface is connected and fixed plate, and fixed head is connected with lifting arm, and lifting arm is fixed on lifting column, and lifting column is arranged on lifting pedestal;

Described print platform side view is rectangular configuration separated in top, and print platform base plate is a whole plane, and in order to the product top of bonding printing, the both sides upper surface of print platform arranges 4 pull-up screwed holes;

The corner of fixed head arranges the through hole corresponding with 4 pull-up screwed holes respectively, and each through hole is other also arranges 4 and hold out against screwed hole accordingly; Puller bolt is through holding out against the both sides upper surface of screwed hole top to print platform; Lacing wire bolt-through through hole and pull-up screwed hole, coordinate with puller bolt that to adjust print platform parallel with liquid crystal display, adjusts the gap of print platform and liquid crystal display simultaneously;

Also arranges several spacing holes corresponding with lifting arm caging bolt in the middle of fixed head, in the middle part of lifting arm base plate, ecto-entad has tight groove, passing set bolt in tight groove for fixed head handle is tightened to lifting arm; Can to be extracted out or fixing from lifting arm easily by such print platform and fixed head entirety of arranging;

Arrange trapezoidal side plate above the base plate both sides of lifting arm, the lifting column be connected with lifting arm is for circular or square.

Lifting column is arranged on lifting pedestal; Lifting pedestal can combine as a whole with liquid crystal display housing, with ensure impact that lifting arm do not trembleed in lifting process all the time liquid crystal display with vertical.

During printing, first printed product top, then successively prints downwards.Often print one deck, lifting arm raises one deck, and the resin namely after solidification is at liquid resin ullage.

Print platform base plate is aluminium alloy, it is greater than reservoir bottom thin film to the release degree of resin after solidification, print every layer terminate after, easily product is separated with reservoir bottom thin film, and then print platform is taken out from lifting arm, utilize the instruments such as grafter to be separated with print platform base plate by product.

The utility model provides a kind of 3D printer of original creation, and the 3D achieving high-accuracy high-efficiency rate prints, and compact conformation, small volume.The design science of the utility model in the concrete structure unit of printer is reasonable simultaneously, and print platform can ensure the depth of parallelism with liquid crystal display, and jacking system can ensure the perpendicularity of lifting column and liquid crystal display, print procedure temperature, and precision improves.

Beneficial effect: reservoir base plate not only light transmittance is high but also heat-resisting, ensures that liquid resinous temperature can not be too high, and light direct projection.The mould release membrance that reservoir base plate is arranged is convenient to print separate, has obvious technological progress.

Accompanying drawing explanation

Fig. 1 is the structural principle side view of the utility model embodiment 1 printer.

Fig. 2 is the structural principle stereogram of the utility model embodiment 1 printer.

In figure: 1, heat-sink unit, 2, heat-conducting unit, 3, LED light source, 4, light leads to, 5, lifting pedestal, 6, Fresnel Lenses, 7, liquid crystal display, 8, reservoir fixed frame, 9, reservoir base plate, 10, reservoir, 11, print platform, 12, fixed head, 13, lifting arm, 14, lifting column.

Detailed description of the invention

Embodiment 1: the reservoir of the 3D printer that a kind of high accuracy light-cured resin is shaping,

Reservoir 10 is placed on directly over liquid crystal display 7 by reservoir fixed frame 8;

Reservoir base plate 9 is that selection light transmittance is high, hot strength is higher and the plastic sheeting material of good heat resistance, and tightens;

Select if light transmittance is more than 95%, melt temperature more than 80 DEG C, the plastic sheeting material of more than hot strength 10MPa.

And on reservoir base plate, paste the mould release membrance of a floor height printing opacity, as resistance to fluon or Teflon film, this mould release membrance and the solid resin after printing are easy to peel off, and liquid resin leaves in reservoir 10.Bottom this kind of structure reservoir not only heat insulation, light transmittance is not high, but also yielding, ray refractive index is low, and product is easily peeled off after printing.

The stamp with the size scope 160*110*200mm (the wide * of long * is high) of the printer that the present embodiment is applied to, the technical scheme of employing is:

Comprise LED light source 3, described LED light source 3 power is 200W, specification be 14 strings 14 also.Arrange heat-conducting unit 2 and heat-sink unit 1 bottom LED light source 3, heat-conducting unit 2 adopts heat pipe or hot plate, and heat-sink unit 1 arranges fin and fan cooling, and fan outlet is arranged on outside air draft bottom printer.

LED light source 3 is the ultraviolet LED light source of wavelength 375-405NM, arranges light logical 4 between described LED light source 3 surrounding and the Fresnel Lenses 6 on top; Light logical 4 adopts aluminium alloy plate.

Described Fresnel Lenses 6 size can cover liquid crystal display 7, and Fresnel Lenses 6 is 80-90mm with the distance of LED light source 3, and Fresnel Lenses 6 is 8-10mm with liquid crystal display 7 spacing on top.

Liquid crystal display 7 is arranged in liquid crystal display housing, and the upper surface level of liquid crystal display upper surface and liquid crystal display housing.The resolution ratio of liquid crystal display 7 is 1920*1200, is of a size of 10.1 inches, and point is apart from 0.1mm.The contrast 70% of liquid crystal display, brightness 50%.

The upper surface of the liquid crystal display housing left and right sides is also provided with reservoir fixed frame 8.

Arrange print platform 11 on the top of reservoir 10, print platform 11 upper surface is connected and fixed plate 12, and fixed head 12 is connected with lifting arm 13, and lifting arm 13 is fixed on lifting column 14, and lifting column 14 is arranged on lifting pedestal 5.

Described print platform 11 is hollow structure, and its side view is rectangular configuration separated in top, and print platform 11 base plate is a whole plane, in order to the product top of bonding printing.The both sides upper surface of print platform 11 arranges 4 pull-up screwed holes;

The corner of fixed head 12 arranges the through hole corresponding with 4 pull-up screwed holes respectively, and each through hole is other also arranges 4 and hold out against screwed hole accordingly; Puller bolt is through holding out against the both sides upper surface of screwed hole top to print platform; Lacing wire bolt-through through hole and pull-up screwed hole, coordinate with puller bolt that to adjust print platform 11 base plate parallel with liquid crystal display 7, adjusts the spacing of print platform 11 and liquid crystal display 7 simultaneously.

Also arranges several spacing holes corresponding with lifting arm caging bolt in the middle of fixed head 12, in the middle part of lifting arm base plate, ecto-entad has tight groove, passing set bolt in tight groove for fixed head handle is tightened to lifting arm.With fixed head 12 entirety by such print platform 11 that arranges can extract from lifting arm 13 easily or fix.

Arrange trapezoidal side plate above the base plate both sides of lifting arm 13, the lifting column 14 be connected with lifting arm 13 is for circular or square.

Lifting column 14 is arranged on lifting pedestal 5;

During printing, first printed product top, then successively prints downwards.Often print one deck, lifting arm 13 raises one deck, and the resin namely after solidification is at liquid resin ullage.

Print platform 11 base plate is aluminium alloy, it is greater than reservoir bottom thin film to the release degree of resin after solidification, print every layer terminate after, easily product is separated with reservoir bottom thin film, and then print platform 11 is taken out from lifting arm, utilize the instruments such as grafter to be separated with print platform base plate by product.

Claims (1)

1. a reservoir for the 3D printer that high accuracy light-cured resin is shaping, is characterized in that,

Reservoir is placed on directly over liquid crystal display by reservoir fixed frame; Reservoir base plate is plastic sheeting material, and tightens;

And on reservoir base plate, pasting the mould release membrance of a floor height printing opacity, this mould release membrance and the solid resin after printing are easy to peel off, and liquid resin leaves in reservoir.