Background technology
Printer is a kind of common printing device, existing printer is all print for various plane material surface, as paper, leather, plastics, glass, metal etc., this printer has been widely used in office and domestic use, this printer is called as two-dimentional printer, namely can only print image or the word of two dimension.
The work of two dimension printer is being done conveying motion (or printhead actual motion by the surface of printing objects by opposed print heads, static by print surface), printhead is along moving relative to carrying motion vertical scanning direction with by printing objects simultaneously, and prints.
Along with people are more and more higher to the requirement printed, and wish to print three-dimensional object, therefore, occurred increasing three-dimensional printer, namely can print the printer of three-dimensional body.The Chinese invention patent application being CN102941738A as publication number discloses a kind of innovation and creation being called " printhead ", and this printhead is installed in a three-dimensional printing equipment, and form a three-dimensional printer, this three-dimensional printer as shown in Figure 1.
The molding seat 12 that three-dimensional printer 10 has one piece of base plate 11 and is arranged on base plate 11, four screw rods 13 are extended with straight up from base plate 11, framework 14 is set on screw rod 13, and can along screw rod 13 along Z-direction, namely vertical does rectilinear motion, like this, framework 14 can move up and down along screw rod 13.Framework 14 is provided with guide rod 15, and guide rod 15 can do rectilinear motion along Y direction on framework 14.Printhead 16 is set on guide rod 15, and can do rectilinear motion along X-direction.
Printhead 16 is provided with multiple cavity 17, each cavity 17 accommodates printed material respectively, the printed material of different colours can be held in these cavitys 17, or hold dissimilar printed material, require to be injected into different printed material according to different printings.Be provided with discharging opening 18 in the lower end of printhead 17, the printed material in cavity 17 can flow out through discharging opening 18, and prints the object of given shape on molding seat 12.
When three-dimensional printer 10 works, by the control to framework 14, guide rod 15, printhead 16, printhead 16 all can realize mobile on X, Y, Z axis three directions, and then realizes the three-dimensional printing of expection.
But, this three-dimensional printer 10 needs the movement using framework 14, guide rod 15 realizes printhead 16, cause the complex structure of three-dimensional printer 10, bulky, be unfavorable for the production of three-dimensional printer, transport, carry, often cause three-dimensional printer 10 can only be placed on specific local use, make the application of three-dimensional printer 10 very inconvenient.
Summary of the invention
Main purpose of the present invention is to provide a kind of volume three-dimensional printer little and easy to use.
Another object of the present invention be to provide a kind of flexibly, the Method of printing of three-dimensional printer easily.
For realizing above-mentioned main purpose, three-dimensional printer provided by the invention has housing, and be provided with the cavity that is held printed material in housing, the lower end of cavity is provided with discharging opening, the controller for controlling printed material ejection discharging opening is also provided with in housing, wherein, discharging opening is arranged on the diapire of housing, in vertical, the lower surface of discharging opening is higher than the lower surface of housing, further, be also provided with camera head in housing, the camera lens of camera head is arranged down.
From such scheme, in three-dimensional printer, camera head is set, image under shooting three-dimensional printer shell bottom wall, the position of three-dimensional printer is calculated according to captured image, then user can use hand moving three dimension printer, three-dimensional printer, according to the shape of current position and object to be printed, sprays corresponding printed material.Like this, three-dimensional printer is without the need to arranging complicated travel mechanism, small volume, and structure is simple, and user can carry three-dimensional printer easily, and realizes printing easily.
The printing of three-dimensional printer prints layer by layer, and after three-dimensional printer often prints one deck, three-dimensional printer is placed on the layer that printed by user, can continue to print lower one deck, and printing is simple, convenient.
A preferred scheme is also provided with data source and sink in housing, and camera head and controller all carry out exchanges data with data source and sink.
As can be seen here, controller can carry out exchanges data by data source and sink and outside computer, is calculated the position of three-dimensional printer, and transmits control signal to controller, control the ejection of printed material by printer according to the image that camera head is taken.Like this, complicated calculation and control can be realized by computer, reduce the operand of controller.
Another preferred scheme is that camera head is electrically connected with controller, and the image information of acquisition is transferred to controller.
Visible, controller directly obtains the image captured by camera head, and calculates the position of three-dimensional printer, controls the ejection of printed material simultaneously, processes without the need to sending data to computer, makes printing more flexible, convenient.
For realizing another above-mentioned object, in the Method of printing of three-dimensional printer provided by the invention, the cavity holding printed material is provided with in the housing of this three-dimensional printer, the lower end of cavity is provided with discharging opening, also controller is provided with in housing, and be also provided with camera head in housing, the camera lens of camera head is arranged down, also data source and sink is provided with in the housing of three-dimensional printer, this Method of printing is: camera head takes the image of print media or the image of printing objects continuously, the image of shooting is transferred to computer by data source and sink, computer calculates according to image and determines the position of three-dimensional printer, and generate control signal according to the shape of object to be printed, transmitted control signal to controller by data source and sink, controller controls the keying of discharging opening according to control signal.
From such scheme, the position of three-dimensional printer is determined to be undertaken analyzing by the image captured by camera head to obtain, therefore user can hand-held three-dimensional printer drive the work of three-dimensional printer, three-dimensional printer is without the need to arranging complicated travel mechanism, structure is simple, small volume, is easy to carry.
The Method of printing of three-dimensional printer provided by the invention can also realize in the following manner, the cavity holding printed material is provided with in the housing of this three-dimensional printer, the lower end of cavity is provided with discharging opening, also controller is provided with in housing, and be also provided with camera head in housing, the camera lens of camera head is arranged down, the method comprise be camera head take continuously print media image or printing objects image and transfer to controller, controller calculates according to the image that camera head is taken and determines the position of three-dimensional printer, and the keying of shape controlling discharging opening according to determined position and object to be printed.
From such scheme, three-dimensional printer calculates its position by the image that camera head is taken, and opens and closes according to the position control discharging opening calculated, thus controls the outflow of printed material, the position of user's manually moving three dimension printer, namely can realize three-dimensional printing.Because three-dimensional printer prints layer by layer, only have user after often printing one deck, three-dimensional printer is placed on and has printed on complete layer, the layer printing other can be continued, simple, convenient.
A preferred scheme is also provided with the projection arrangement be electrically connected with controller in housing, and the projection head of projection arrangement is stretched out outside housing, and controller is gone out by projection device after receiving the image captured by camera head.
As can be seen here, the image projection captured by camera head gone out by projection arrangement, person easy to use watches the image captured by camera head, and then moving three dimension printer easily, is conducive to the carrying out of 3 D-printing.
Detailed description of the invention
Three-dimensional printer embodiment:
See Fig. 2 and Fig. 3, three-dimensional printer has housing, and the top cover 21 comprising cambered surface column and the sidewall 22,23 being positioned at top cover 21 both sides are formed, and roof 21 offers a through hole 24, and the projection head 25 of projection arrangement is stretched out outside roof 21.Further, be provided with display screen 26 in the upper end of roof 21, preferably, display screen 26 is touch-screen, and user can pass through touch display screen 26 input control order, and then controls the work of three-dimensional printer.
Roof 21 is also provided with storage card slot 27, and storage card can be inserted in slot 27.The side of slot 27 is provided with reader device, for reading the data stored in storage card.
See Fig. 4, in the housing of three-dimensional printer, be provided with a cavity 33, in cavity 33, hold printed material.In the present embodiment, printed material can be the ink of photocuring, as UV ink, or the liquid that can solidify, as AB glue etc., also can be the powder that can be cured.Certainly, as used AB glue as printed material, then need in cavity 33, to arrange dividing plate to form two little cavitys, two little cavitys hold two kinds of different liquid respectively, and eject respectively.
Also be provided with one piece of circuit board 40 in housing, circuit board 40 is nearby provided with control box 41, and be provided with the controller of three-dimensional printer, camera head, projection arrangement, data source and sink etc. in control box, the projection head 25 of projection arrangement is positioned at one end of control box 41.
See Fig. 5, housing also comprises the diapire 29 be positioned at below cavity 33, and diapire 29 is provided with discharging opening 34, and discharging opening 34 is positioned at the lower end of cavity 33, and is communicated with cavity 33.Printed material in cavity 33 can spray cavity by discharging opening 34.For the ease of the ejection of printed material, in vertical, the lower surface of discharging opening 34 higher than the lower surface 30 of housing, like this, when three-dimensional printer is placed on print media or the object that printed, discharging opening 34 and print media or and printed matter between there is gap.
Diapire 29 is also provided with the camera lens 42 of camera head, camera lens 42 is arranged down, and passes diapire 29.Certainly, be positioned at the shooting being convenient to camera head, in vertical, the lower surface of camera lens 42 is higher than the lower surface 30 of housing.In addition, in order to avoid camera head shooting environmental is excessively dark, the LED for throwing light on can be set near camera head.
See Fig. 6, in three-dimensional printer 20, be provided with controller 45, data source and sink 46, reader device 47, camera head 48, projection arrangement 49, display screen 26 etc.Controller 45 is the control core of three-dimensional printer 20, controls the keying of discharging opening 34, and controls the amount of printed material ejection in cavity 33, completes printing thus.
Data source and sink 46 is WIFI signal R-T unit, for wireless receiving and dispatching data, realizes the communication between controller 45 and computer 50.Certainly, data source and sink 46 also can be signal modem, for realizing the wire communication between controller 45 and computer 50.
Reader device 47 is electrically connected with controller 45, for reading the data stored in storage card 51, and the data of reading is transferred to controller 45.The data of the shape that the body form needing to print and every one deck can print by user be stored in storage card 51, and controller 45 reads the data be stored in storage card 51, and according to the keying of read Data Control discharging opening 34 to realize printing.
Camera head 48 is for taking image, as the image etc. of the figure of print media, printing objects, and export the image of shooting to controller 45, calculated the position determining three-dimensional printer 20 according to the image of shooting by controller 45, or export the image of shooting to computer 50 by controller 45, calculated the position of three-dimensional printer 20 by computer 50 according to image.
Projection arrangement 49 receives the data of controller 45, the data of image captured by the camera head 48 of namely reception controller 45 output, and the image projection captured by camera head 48 is gone out, user, by the image captured by image-watching camera head 48 of projection, understands the situation under three-dimensional printer 20 diapire 29 thus.
Certainly, in order to the misalignment of accurate Calculation three-dimensional printer, the displacement detector identical with optical mouse can be set in housing, for detecting the misalignment of three-dimensional printer, and the signal of detection is transferred to computer 50 by data source and sink 46, or by the Signal transmissions of detection to controller.
Below in conjunction with Fig. 7 and Fig. 8, three-dimensional printer two kinds of Method of printings are described respectively.
Three-dimensional printer Method of printing first embodiment:
See Fig. 7, during three-dimensional printer work, first taken the image of print media by camera head, namely perform step S1, and by the image transmitting of shooting to controller, controller exports the image of shooting to computer by data source and sink.
Computer receives after image, performs step S2, calculates and determines the position of three-dimensional printer.If an image headed by the image of camera head shooting, then without the need to calculating, image as camera head shooting is not first image, then computer can contrast this image and a upper image, determined the side-play amount of three-dimensional printer by the difference of comparative analysis two images, determine the position of three-dimensional printer thus.The operation principle that computer calculates the principle of position of three-dimensional printer and existing optical mouse by the image of shooting is similar.
Behind the position of computer calculate determination three-dimensional printer, according to the shape of material to be printed, generate control signal.During due to three-dimensional printer printing objects, object is divided into multilayer, each prints the image of one deck.Further, when three-dimensional printer prints multi-layer image, be all print from bottom to top, therefore the layer of current printing determined by computer according to printing progress, and generates control signal thus, the control signal generated exported middle controller, namely performs step S3.
Controller performs step S4, after receiving control signal, controls the keying of discharging opening under the instruction of control signal, and printed material, through discharging opening, realizes printing thus.
Finally, controller performs step S5, judges whether that printing is complete, as not having, returning and performing step S1.Like this, take image continuously by camera head, computer according to the position of the image determination three-dimensional printer of shooting continuously, and generates control signal according to the shape of the position of three-dimensional printer, object to be printed.Like this, user can manually moving three dimension printer, prints the object of setting shape on the print medium.
Because 3 D-printing is that layering prints, therefore running in computer has corresponding program, and control the printing of the every one deck of three-dimensional printer, this is identical with existing three-dimensional printer control technology, repeats no more.Three-dimensional printer, after three-dimensional printer prints a tomographic image, is placed on the object printed by user, continues the printing of lower one deck.
Three-dimensional printer Method of printing second embodiment:
Three-dimensional printer can not need to be connected with computer, controls its work by the controller of self.See Fig. 8, before three-dimensional printer work, the storage card of the data storing body form to be printed is inserted in storage card slot.During three-dimensional printer work, first perform step S11, controller reads the data stored in storage card by reader device, namely read the data of body form to be printed.Preferably, the data that storage card stores also comprise the data after treating printed matter layering, and every one deck prints the data of shape.
Then, controller controls the image below camera head shooting three-dimensional printer, namely performs step S12, and perform step S13, controller is contrasted by current image and a upper image, the side-play amount of a certain object of reference in analysis chart picture, thus determines the displaced posi of three-dimensional printer.Meanwhile, the picture signal captured by camera head is also transferred to projection arrangement by controller, and the image projection captured by camera head is gone out by projection arrangement, namely performs step S14, and user understands the situation below three-dimensional printer by the image of projection.
Then, controller performs step S15, according to the position of three-dimensional printer and the shape of object to be printed, generates control signal, and controls the keying of discharging opening, control the ejection of printed material thus.Certainly, in print procedure, controller can show current status information by display screen, and receives the information received as the touch-screen of display screen, accepts the control of user thus.
Three-dimensional printer presses layer printing objects, and sprays corresponding printed material after each three-dimensional printer moves, and after ejecting printed material, performs step S16, judges whether that printing is complete, as not having, returning and performing step S12.
Like this, three-dimensional printer without the need to being connected with computer, can perform easily 3 D-printing operation, and three-dimensional printer structure more simple, operate more convenient.
Certainly, above-described embodiment is only the present invention's preferably embodiment, can also have more change during practical application, such as, housing arranges control and operation button, and button is electrically connected with controller and sends signal to controller; Or when needs carry out color three dimension printing, arrange multiple cavity in housing, hold the printed material of different colours in each cavity, and the below of each cavity all arranges a discharging opening, such change can realize object of the present invention equally.
Finally it is emphasized that and the invention is not restricted to above-mentioned embodiment, the change etc. as the change of hull shape, the perspective view of projection arrangement and display screen setting position changes and also should be included in the protection domain of the claims in the present invention.