CN207481225U - For the automatic feeder of DLP photocuring 3D printers - Google Patents
For the automatic feeder of DLP photocuring 3D printers Download PDFInfo
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- CN207481225U CN207481225U CN201721272796.1U CN201721272796U CN207481225U CN 207481225 U CN207481225 U CN 207481225U CN 201721272796 U CN201721272796 U CN 201721272796U CN 207481225 U CN207481225 U CN 207481225U
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- liquid bath
- photosensitive sensor
- controller
- optical transmitting
- transmitting set
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Abstract
The utility model provides a kind of automatic feeder for DLP photocuring 3D printers, including：At least one detection unit, controller, feed pot；The detection unit includes optical transmitting set and photosensitive sensor, the optical transmitting set and the photosensitive sensor are arranged on the outside of the liquid bath of the DLP photocurings 3D printer, so that the light of the optical transmitting set enters liquid bath through the one side wall of the liquid bath, and received after the injection of another side wall by the photo resistance of the photosensitive sensor；The signal output end of the photosensitive sensor is connect with the signal input part of the controller, the signal output end of the controller is connect with the control circuit of the feed pot, the discharge port of the feed pot is connected to by hose in the liquid bath, and the controller is used to the feed pot be controlled to start or stop charging according to the output signal of the photosensitive sensor.Automatic feed is realized using infrared induction technology, greatly improves DLP photocuring 3D printer working efficiencies.
Description
Technical field
The utility model is related to technical fields, and in particular to a kind of automatic feed for DLP photocuring 3D printers fills
It puts.
Background technology
The operation principle of DLP photocuring 3D printers：Successively cured using projecting apparatus using digital light processing (DLP) technology
Liquid photosensitive resin, can print the object with very fine resolution ratio, and resin can be accommodated by including one in DLP equipment
Liquid bath, can be by cured resin after the ultraviolet light of specific wavelength for holding, DLP imaging systems are placed in below liquid bath,
Its imaging surface is placed exactly in liquid bath bottom, and by energy and Graph Control, the thin layer tree of certain thickness and shape can be cured every time
Fat (this layer of resin is identical with the cross-sectional shape obtained by the cutting of front).One construction platform of setting above liquid bath, cuts every time
Certain altitude is lifted upwards after the completion of the exposure of face (this is highly consistent with lift height) so that the solid resin of current curing completion
Detached with liquid bath bottom surface and be bonded in scraper plate or last molding resin layer on, in this way, by successively exposing and promoting next life
Into 3D solid.
In traditional 3D printing, liquid photosensitive resin is successively cured using ultraviolet light projector using DLP technologies, due to
DLP photocuring 3D printers are to carry out constructed object by layer-by-layer printing, and each printable layer is required to complete with liquid bath bottom
Into primary demoulding, reduced with the liquid photosensitive resin of liquid bath, system can not automatic identification photosensitive resin capacity whether can beat
Complete threedimensional model is printed, formed precision and surface quality may be influenced.
Utility model content
For the defects in the prior art, it is provided by the utility model a kind of for the automatic of DLP photocuring 3D printers
Feed arrangement realizes automatic feed using infrared induction technology, greatly improves DLP photocurings 3D printer work effect
Rate improves the automation of machine, helps to improve model forming precision and surface quality.
A kind of automatic feeder for DLP photocuring 3D printers of the utility model, including：At least one detection
Unit, controller, feed pot；
The detection unit includes optical transmitting set and photosensitive sensor, the optical transmitting set and photosensitive sensor setting
On the outside of the liquid bath of the DLP photocurings 3D printer so that the light of the optical transmitting set through the liquid bath one side wall into
Enter liquid bath, and received after the injection of another side wall by the photo resistance of the photosensitive sensor；
The signal output end of the photosensitive sensor is connect with the signal input part of the controller, the letter of the controller
Number output terminal is connect with the control circuit of the feed pot, and the discharge port of the feed pot is connected to the liquid bath by hose
Interior, the controller is used to the feed pot be controlled to start or stop charging according to the output signal of the photosensitive sensor.
Preferably, the detection unit is arranged on the right angle of the liquid bath.
Preferably, the optical transmitting set is fixedly connected with the photosensitive sensor by fixing device.
Preferably, the light path of the detection unit is located at the position that the height away from the liquid bath bottom surface is 1 millimeter.
Preferably, including two detection units, wherein, the light path of first detection unit is located at the height away from the liquid bath bottom surface
The position for 1 millimeter is spent, the light path of second detection unit is located at the position that the height away from the liquid bath bottom surface is 3 millimeters.
Preferably, the optical transmitting set is infrared transmitter, and the photosensitive sensor is can match with the infrared transmitter
Close the infrared remote receiver used.
The utility model mainly uses infrared induction technology, it is proposed that a kind of completely new automatic sensing, automatically feed
Device, light-inductive device is simple in structure used in the present embodiment, can be according to the brightness of ambient enviroment and intensity control liquid bath
Photosensitive resin amount of capacity, without adding manually, save handling time, greatly improve working efficiency, ensure
There is sufficient liquid photosensitive resin in liquid bath to complete the printing of model, improve formed precision and surface quality.
Description of the drawings
The knot of the automatic feeder for DLP photocuring 3D printers that Fig. 1 is provided by the utility model embodiment
Structure schematic diagram.
Specific embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with attached drawing.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore example is intended only as, and cannot this reality be limited with this
With novel protection domain.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this reality
The ordinary meaning understood with novel one of ordinary skill in the art.
As shown in Figure 1, a kind of automatic feeder for DLP photocuring 3D printers provided in this embodiment, including：
At least one detection unit 1, controller, feed pot 2.The detection unit 1 includes optical transmitting set 11 and photosensitive sensor 12, institute
It states optical transmitting set 11 and the photosensitive sensor 12 is arranged on 3 outside of liquid bath of the DLP photocurings 3D printer so that is described
The light of optical transmitting set 11 enters liquid bath 3 through the one side wall of the liquid bath 3, and by the light sensor after the injection of another side wall
The photo resistance of device 12 receives；The signal output end of the photosensitive sensor 12 is connect with the signal input part of the controller,
The signal output end of the controller is connect with the control circuit of the feed pot 2, and the discharge port of the feed pot 2 passes through hose
4 are connected in the liquid bath 3, and the controller is used to control the feed pot according to the output signal of the photosensitive sensor 12
2 start or stop charging.
Wherein, controller is not shown in FIG. 1, and controller can be individually located in outside, can also be arranged on and be integrated in
Inside feed pot 2, controller can pass through the control circuit in wired or wireless mode and photosensitive sensor 12, feed pot 2
Connection.
Wherein, the inside of photosensitive sensor 12 dress has one piece by " pin type two there are one high-precision photoelectric tube in photoelectric tube
The tablet of pipe " composition, operation principle are：When applying a reversed fixed pressure to photoelectric tube both ends, any light is to it
Impact will all it be caused to release electronics, as a result, when intensity of illumination it is higher, the electric current of photoelectric tube is also bigger, and electric current leads to
When crossing a resistance, the voltage at resistance both ends, which is converted into, can be collected the 0-5V voltage outputs that the digital analog converter of device receives.
Briefly, photosensitive sensor 12 be exactly using photo resistance by light intensity effect and the changed principle of resistance value to control
Device sends the analog signal of light intensity.
When the photosensitive resin amount in liquid bath 3 is also sufficient, the light that optical transmitting set 11 is sent out largely declines after photosensitive resin
Subtract so that the light energy that light can not reach photosensitive sensor 12 or reach is smaller, can not trigger photosensitive sensor 12 and generate enough
Big voltage signal.It is photosensitive when being gradually reduced to 3 bottom of liquid bath but as 3 the inside photosensitive resin of liquid bath is cured layer by layer
Sensor 12 can receive the light that optical transmitting set 11 is sent out, and generate analog signal, and controller is being received more than voltage threshold
After analog signal, enabling signal is sent out to feed pot 2, the liquid photosensitive resin of 2 the inside of feed pot is automatically transferred to by hose 4
Liquid bath 3, after resin is filled it up with to entire liquid bath 3, charging is automatically stopped charging.
The utility model mainly uses infrared induction technology, it is proposed that a kind of completely new automatic sensing, automatically feed
Device, light-inductive device is simple in structure used in the present embodiment, can be according to the brightness of ambient enviroment and intensity control liquid bath 3
Photosensitive resin amount of capacity, without adding manually, save handling time, greatly improve working efficiency, ensure
There is sufficient liquid photosensitive resin in liquid bath 3 to complete the printing of model, improve formed precision and surface quality.
Preferably, the detection unit 1 is arranged on the right angle of the liquid bath 3, and specific location can be found in Fig. 1, generally beat
Curing molding all is carried out in the middle section of liquid bath 3 when printing 3D models, detection unit 1 is set in the position, it can be to avoid shadow
Ring the curing of model.As shown in Figure 1, detection unit 1 can be set in multiple right angles of liquid bath 3, accuracy of detection is improved.
Preferably, the optical transmitting set 11 is fixedly connected with the photosensitive sensor 12 by fixing device 13, to ensure
The stability of light path between optical transmitting set 11 and photosensitive sensor 12.
Preferably, the light path of the detection unit 1 is located at the position that the height away from 3 bottom surface of liquid bath is 1 millimeter.
Preferably, as shown in Figure 1, setting is there are two detection unit, wherein, the light path of first detection unit is located at away from described
The height of liquid bath bottom surface is 1 millimeter of position, and it is 3 millimeters that the light path of second detection unit, which is located at the height away from the liquid bath bottom surface,
Position.For detecting low liquid level, second detection unit is used to detect high liquid level first detection unit.Liquid level in liquid bath 3
During less than 1 millimeter, first detection unit generates analog signal, and controller is after the analog signal more than voltage threshold is received, hair
Go out enabling signal to feed pot 2, the liquid photosensitive resin of 2 the inside of feed pot is automatically transferred to liquid bath 3 by hose 4, works as resin
It fills it up with to entire liquid bath 3, starts automatic feed；When reaching high liquid level, the light path back of the body of second detection unit blocks, controller
It detects the blackout of second detection unit, automatic feed will be stopped.
Certainly stop automatically feed method can with when detection flows or feed time, sentenced according to flow and feed time
It is disconnected whether to fill it up with material.
Preferably, the optical transmitting set 11 is infrared transmitter, and the photosensitive sensor 12 is can be with the infrared emission
The infrared remote receiver that device is used cooperatively.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Claims (6)
1. a kind of automatic feeder for DLP photocuring 3D printers, which is characterized in that including：At least one detection is single
Member, controller, feed pot；
The detection unit includes optical transmitting set and photosensitive sensor, and the optical transmitting set and the photosensitive sensor are arranged on institute
On the outside of the liquid bath for stating DLP photocuring 3D printers so that the light of the optical transmitting set enters liquid through the one side wall of the liquid bath
Slot, and received after the injection of another side wall by the photo resistance of the photosensitive sensor；
The signal output end of the photosensitive sensor is connect with the signal input part of the controller, and the signal of the controller is defeated
Outlet is connect with the control circuit of the feed pot, and the discharge port of the feed pot is connected to by hose in the liquid bath, institute
Controller is stated for the feed pot being controlled to start or stop charging according to the output signal of the photosensitive sensor.
2. the apparatus according to claim 1, which is characterized in that the detection unit is arranged on the right angle of the liquid bath.
3. device according to claim 1 or 2, which is characterized in that the optical transmitting set and the photosensitive sensor pass through
Fixing device is fixedly connected.
4. device according to claim 1 or 2, which is characterized in that the light path of the detection unit is located at away from the liquid bath
The height of bottom surface is 1 millimeter of position.
5. device according to claim 1 or 2, which is characterized in that including two detection units, wherein, the first detection is single
The light path of member is located at the position that the height away from the liquid bath bottom surface is 1 millimeter, and the light path of second detection unit is located at away from the liquid
The height of groove bottom is 3 millimeters of position.
6. device according to claim 1 or 2, which is characterized in that the optical transmitting set is infrared transmitter, described photosensitive
Sensor is the infrared remote receiver that can be used cooperatively with the infrared transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272796.1U CN207481225U (en) | 2017-09-29 | 2017-09-29 | For the automatic feeder of DLP photocuring 3D printers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272796.1U CN207481225U (en) | 2017-09-29 | 2017-09-29 | For the automatic feeder of DLP photocuring 3D printers |
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| Publication Number | Publication Date |
|---|---|
| CN207481225U true CN207481225U (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721272796.1U Active CN207481225U (en) | 2017-09-29 | 2017-09-29 | For the automatic feeder of DLP photocuring 3D printers |
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| CN (1) | CN207481225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111619106A (en) * | 2020-05-18 | 2020-09-04 | 黄冈师范学院 | Intelligent feeding system of LCD printer |
-
2017
- 2017-09-29 CN CN201721272796.1U patent/CN207481225U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111619106A (en) * | 2020-05-18 | 2020-09-04 | 黄冈师范学院 | Intelligent feeding system of LCD printer |
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