CN206186372U - 3D printing device material groove - Google Patents

Abstract

The utility model discloses a 3D printing device material groove, including tank bottom and the cell wall of setting at the tank bottom border, the tank bottom is complete transparent or subregion transparent bottom plate, the bottom plate coats and is stamped the even transparent liquid membrane of a layer thickness, the material groove with be used for driving material groove pivoted drive assembly and link to each other, through its rotation of drive assembly control. But 3D printing device material groove steady rotation, print the in -process, the centre need not other long -time pause or repeated motion, can save 80% the non -cured time of accounting for originally, makes to print efficiency and rise by a wide margin, can reach the speed of 4~10 times ordinary 3D printers, adopting the transparent liquid membrane of high density, can guaranteeing that liquid membrane is rotating the in -process, can not produce the ripple because of the centripetal force surface, the transparent liquid membrane of high density also can make and form glossy interface between printing solution and the liquid membrane simultaneously, both separation of being convenient for.

Description

A kind of 3D printing device material trough

Technical field

The utility model is related to a kind of 3D printing device material trough, belongs to printing device technical field.

Background technology

3D printing device, also known as three-dimensional printer, is that one kind uses accumulation manufacturing technology（That is RP technique）Machine Device, its principle is that machine is from level to level created product according to program during data and raw material are put into 3D printer.At present, The material trough for being used to hold printing solution in conventional 3D printing device is all fixed, when the cured layer of print platform solidifies knot Shu Hou, in order that solidification layer surface departs from material trench bottom, print platform is required for rising, and then declining again carries out the second layer Exposure curing.The repetition of print platform rises, decline and account for the 80% of whole printing process, even more many, ultimately results in printing fast Degree is slow, influences printing effect.

In view of this, the present inventor is studied this, specially develops a kind of 3D printing device Sheng Ye mechanisms, this case by This is produced.

Utility model content

The purpose of this utility model is to provide a kind of 3D printing device material trough, and in print procedure, material trough can at the uniform velocity turn It is dynamic, and can be rapidly separated with print platform cured layer, it is fast with print speed, the features such as high precision.

To achieve these goals, solution of the present utility model is：

A kind of 3D printing device material trough, including bottom land and the cell wall for being arranged on bottom land edge, the bottom land is all-transparent Or the transparent base plate in subregion, be coated with the uniform transparent liquid film of a layer thickness on the base plate, the material trough with Drive component for driving material trough to rotate is connected, and controls it to rotate by drive component.

Preferably, the transparent liquid film uses ionic liquid.Have between transparent liquid film and printing solution bright and clean Interface, the cured layer of print platform can easily depart from transparent liquid film with the rotation of material trough.

Preferably, the ionic liquid density is more than 1.1g/cm3, light transmittance is more than 85%, non-volatility.

Preferably, the transparent liquid film thickness is less than or equal to 2mm.

Preferably, the bottom land uses full transparent glass or plastic material.

Preferably, the cell wall is using materials such as metal, glass or plastics.

Preferably, the material trough is circle.

Above-mentioned 3D printing device material trough operation principle：The controlling organization control exposure mechanism of 3D printing device, printer Structure, Sheng Ye mechanisms start working, and material trough uniform rotation, print platform drops to material trench bottom, now, print platform following table Face is the thickness of individual layer printing with the spacing of material trough transparency liquid film upper surface, and exposure mechanism passes through dianegative and transparent liquid State film projects projected image to print platform, the printing solution in drop shadow spread is solidified and is pasted onto on print platform, solid During change, print platform at the uniform velocity rises or pause setting time at the uniform velocity rises again, the material trough uniform rotation or stops Setting time uniform rotation again；Repeat the above steps the printing second layer, until printing terminates.

Compared with prior art, there are following several advantages using the 3D printing device material trough of said structure：

1st, in print procedure, material trough can uniformly rotate（Print platform also can at the uniform velocity rise）, it is middle without other it is long when Between pause or perseveration, can save it is original account for 80% the uncured time, printing effect is significantly increased, can reach The speed of common 4 ~ 10 times of 3D printer；

2nd, using highdensity transparent liquid film, it is ensured that liquid film, will not be because of centripetal force surface in rotation process Ripple is produced, while highdensity transparent liquid film can also make to form smooth interface between printing solution and liquid film, just Separated in both.

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

Brief description of the drawings

Fig. 1 is the quick 3D printing device three-dimensional structure diagram of embodiment 1；

Fig. 2 is the material trough sectional view of embodiment 1；

Fig. 3 is the drive component and tridimensional structure chart of embodiment 1；

Fig. 4 is the top view of Fig. 3.

Specific embodiment

Embodiment 1

3D printing device material trough described in the present embodiment is applied in a kind of 3D printing device of achievable printing speed, As shown in figure 1, a kind of quick 3D printing device, including pedestal 1, exposure mechanism 2, controlling organization 3 in pedestal 1 are arranged on, with And the printing mechanism 4 on pedestal 1 and Sheng Ye mechanisms 5 are arranged on, wherein, the printing mechanism 4 includes module 41, is slidably mounted on Print platform 42 on module 41, in the present embodiment, the print platform 42 is by the leading screw that is vertically set on module 41 43 realize sliding up and down, and print platform 42 is connected with leading screw 43, and leading screw 43 is connected with spindle motor, and silk is driven by spindle motor Thick stick 43 is rotated, and then drives print platform 42 to move, and in print procedure, print platform can at the uniform velocity rise.The controlling organization 3 Using microprocessor control, controlling organization is connected with exposure mechanism 2, printing mechanism 3 and Sheng Ye mechanisms 4 respectively, each for controlling The action of individual mechanism.In the present embodiment, the exposure mechanism 2 uses DLP projector, projecting apparatus exposure mouth to be located at material trough 51 Lower section, the purple light that DLP projector is projected solidifies for printing solution, using projector projects, with contrast higher, because This hardening time is short, and printing effect is high.

The Sheng Ye mechanisms 5 include the roundel hopper 51 for holding printing solution, and for driving material trough 51 The drive component of rotation.As shown in Fig. 2 material trough 51 includes bottom land 511 and is arranged on the cell wall 513 at the edge of bottom land 511, it is described Bottom land 511 is the transparent base plate of all-transparent or subregion, and base plate can use glass, plastics or other all-transparent materials Matter.The cell wall 513 is using materials such as metal, glass or plastics.The uniform transparent liquid of a layer thickness is coated with the base plate State film 512, the transparent liquid film 512 uses ionic liquid, and the ionic liquid density is more than 1.1g/cm3, and light transmittance is more than 85%, non-volatility, surface tension is small, immiscible with the printing solution such as photosensitive resin liquid.The thickness of transparent liquid film 512 Less than or equal to 2mm.Transparent liquid film 512 described in the present embodiment, density is more than water, in the low speed rotation of material trough 51, Surface smoothness is very high, will not produce ripple, while ionic liquid can also make shape between printing solution 6 and liquid film 512 Into smooth interface, it is easy to both to separate.

As shown in Figure 3-4, the drive component includes turntable bearing 52, bearing fixed seat 53 and motor 54, described Material trough 51 is fixedly mounted on turntable bearing 52, and the bearing fixed seat 53 is fixedly mounted on pedestal 1 by rotary base 55 Above on plate 11, the motor 54 uses the inner ring of gear motor, rolling bearing 52 to be provided with from gear 521, gear electricity Machine is provided with master gear 541, by master gear 541 and the cooperation from gear 521, makes the turntable bearing 52 can be in bearing fixed seat 53 It is upper freely to rotate, and then drive material trough 51 to be rotated on pedestal 1.

The impact faces plate 11 offers a through hole 12, and the exposure mechanism 2 is located at the lower section of through hole 12, exposure mechanism 2 Exposure mouthfuls 21 it is corresponding with print platform 42, for the light of exposure curing, to pass through through hole 12, the transparent bottom of material trough 51 straight Penetrate print platform 42.

The printing speed method of above-mentioned quick 3D printing device, comprises the following steps：

Step 1：First, printing solution is poured into material trough 51, while opening exposure mechanism 2 enters pre- Warm status；

Step 2, exposure mechanism 2 and printing mechanism 4 are started working, and the uniform rotation of material trough 51, print platform 42 drops to The bottom of material trough 51, now, the lower surface of print platform 42 is individual layer printing with the spacing of the upper surface of material trough transparency liquid film 512 Thickness, projecting apparatus, to print platform projects images, made in drop shadow spread by dianegative 511 and transparent liquid film 512 Printing solution solidifies and is pasted onto on print platform 42, and in the curing process, print platform 42 at the uniform velocity rises, the material trough 51 Uniform rotation；Speed is 0.2 ~ 5 rev/min during the material trough uniform rotation, and the speed when print platform at the uniform velocity rises is 0.02 ~ 0.5 mm/second.In print procedure, material trough can uniformly rotate, and print platform can at the uniform velocity rise, middle without other length The pause of time and perseveration, can save the uncured time for accounting for 80% originally, printing effect is significantly increased, Ke Yida To 4 ~ 10 times of speed of common 3D printer；

Step 3：Repeat step 2 prints the second layer, until printing terminates.

The time of the pause of print platform 42 and material trough 51 is general according to by the cross section of printed matter Products（Solidify aspect Product）And depending on the hardening time of printing solution（General print platform pause 0.1S-1S, the material trough pause 0.2S-1S）. When cured layer area is smaller, printing solution solidification is very fast, print platform 42 and material trough 51 are without pause, direct uniform motion It is capable of achieving printing speed；But a period of time of pausing is needed when cured layer area is larger, printing solution solidification is slower, on the one hand It is easy to printing solution to be back to the lower section of print platform 42, on the other hand leaves and takes hardening time to exposure mechanism 2.

In print procedure, material trough 51 can uniformly rotate 3D printing device described in the present embodiment（Print platform also may be used At the uniform velocity rise）, it is middle to save the uncured time for accounting for 80% originally without other prolonged pauses or perseveration, make to beat Print efficiency significantly rises, and can reach the speed of 4 ~ 10 times of common 3D printer；Using highdensity transparent liquid film 512, Liquid film 512 can be ensured in rotation process, ripple will not be produced because of centripetal force surface, while highdensity transparent liquid film Can also make to form smooth interface between printing solution and liquid film, be easy to both to separate.

Above-described embodiment and schema and non-limiting product form of the present utility model and style, any art Appropriate change or modification that those of ordinary skill is done to it, all should be regarded as not departing from patent category of the present utility model.

Claims (7)

1. a kind of 3D printing device material trough, it is characterised in that：Including bottom land and the cell wall for being arranged on bottom land edge, the bottom land It is the transparent base plate of all-transparent or subregion, the uniform transparent liquid film of a layer thickness is coated with the base plate, it is described Material trough is connected with for the drive component for driving material trough to rotate, and controls it to rotate by drive component.

2. a kind of 3D printing device material trough as claimed in claim 1, it is characterised in that：The transparent liquid film uses ion Liquid.

3. a kind of 3D printing device material trough as claimed in claim 2, it is characterised in that：The ionic liquid density is more than 1.1g/cm3, light transmittance is more than 85%, non-volatility.

4. a kind of 3D printing device material trough as claimed in claim 1, it is characterised in that：The transparent liquid film thickness is less than Equal to 2mm.

5. a kind of 3D printing device material trough as claimed in claim 1, it is characterised in that：The bottom land uses full transparent glass Or plastic material.

6. a kind of 3D printing device material trough as claimed in claim 1, it is characterised in that：The cell wall uses metal, glass Or plastic material.

7. a kind of 3D printing device material trough as claimed in claim 1, it is characterised in that：The material trough is circle.