CN206287520U - The workbench correcting mechanism of 3D printer - Google Patents
The workbench correcting mechanism of 3D printer Download PDFInfo
- Publication number
- CN206287520U CN206287520U CN201621417312.3U CN201621417312U CN206287520U CN 206287520 U CN206287520 U CN 206287520U CN 201621417312 U CN201621417312 U CN 201621417312U CN 206287520 U CN206287520 U CN 206287520U
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- CN
- China
- Prior art keywords
- printhead
- fixed seat
- workbench
- main body
- guide rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides the workbench correcting mechanism of 3D printer, including extruding device, printing nozzle and printhead fixed seat, described extruding device includes material extrusion main body, spring, slide block guide rail, optical sensor and heart axle, described spring is resisted against between slide block guide rail and material extrusion main body, slide block guide rail is embedded in printhead fixed seat, driven by printhead fixed seat and moved up and down, described optical sensor is provided with groove and is fixed in material extrusion main body, described spindle sleeve is in the outside of printhead fixed seat, driven by printhead fixed seat and moved up and down, and the top of heart axle is located in the groove.Originally it is new that calibration is contacted with workbench by printing nozzle, model printing precision can be improved；It is not required to consider the material of platform, without applying conductive material and connection electric wire, any measurement point of direct detection on platform；When printhead bumps against model in failure or printing, sensor stopping printing being activated and reported an error, and enter row buffering guarantee nozzle safety using spring.
Description
Technical field
The utility model is related to 3D printer field, is related specifically to a kind of molten thermoplastic material sedimentation type 3D printer
The calibration structure of workbench.
Background technology
Poland Patent PL20140408184 discloses 3D printer bottom and prepares structure with 3D printer printing bottom preparation
The invention of method, which describes following scheme：At least 3 basic points linked up using the electric wire for being connected to printing nozzle, nozzle
Can close circuit during certain point for contacting platform, and the printer control structure inside circuit can receive nozzle and connect by contact position
The information of platform is touched, the nozzle is stored in printer storage the inside with the coordinate of contact with platform.The limitation of this solution is
It is necessary to have conductive region on platform, and because the material for usually making nozzle dirty is non-conductor, it is necessary to often spray printing
Mouth safeguards clean, and it safeguards that dependence is high.
Have using increment sensor to detect the contact scheme of nozzle and platform currently on the market.PiBot Extruder
Company's extruder has filled light increment sensor beside the printhead of main body.Sensor is installed in above jet hole, is now needed
First calibrated and set the distance that can be operated.Additionally, because sensor beside nozzle so while sensor is set
The risk that good nozzle bumps against platform increased, in the case that such as platform has bulge or impurity.Also there is printer now by spray
The component equipped with structure increment sensor, is used to check the point on platform below mouth, and it passes through the limit that printhead moves on to platform,
Sensor is in contact with platform, printer control structure can extrapolate in platform height and calibration operation a little
Structure.The defect of this solution is that the precision of calibration is not high enough.
The disclosure of the invention of Patent No. US 20070228592 work structuring calibration method, it is specified in advance with printer
One model, it is next with coordinate machine that its size quantity is good, may be used to calculate the gap of reality and design size, the result for obtaining
Can be compared with the size inside software with this, the value meeting burning that this is obtained is entered printer the inside and offset when printing
Method calculated, to print the model closest to design size.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of structure that can accurately carry out platform alignment work, its
Print quality can be improved when model is printed, and is more stably pasted onto on platform.
It is achieved through the following technical solutions above-mentioned purpose：
The workbench correcting mechanism of 3D printer, including extruder shell, extruding device, printing nozzle and printhead
Fixed seat, described printing nozzle is fixed in printhead fixed seat, and described extruding device is fixed on the interior of extruder shell
Portion, described extruding device includes material extrusion main body, spring, slide block guide rail, optical sensor and heart axle, in described material extrusion main body
Portion is provided with accommodation space, and spring, slide block guide rail and printhead fixed seat are respectively positioned in accommodation space, and described spring is resisted against
Top between slide block guide rail and material extrusion main body and in accommodation space, described slide block guide rail is embedded in printhead fixed seat
On, driven by printhead fixed seat and moved up and down, described material extrusion main body outside is provided with location-plate, optical sensor be provided with groove and
It is fixed on described location-plate, described spindle sleeve is driven upper and lower in the outside of printhead fixed seat by printhead fixed seat
Move, and the top of heart axle is located in the groove.
As further describing for the workbench correcting mechanism to above-mentioned 3D printer, passage is also included, it is described
Passage through material extrusion main body, slide block guide rail, printhead fixed seat and heart axle center.
As further describing for the workbench correcting mechanism to above-mentioned 3D printer, outside described printhead fixed seat
Side is provided with multi-disc fin, and described heart axle is placed in the top of fin.
Further described as the workbench correcting mechanism to above-mentioned 3D printer, described slide block guide rail is stainless steel
Material and coefficient of friction is not more than 0.3 between material extrusion main body, described material extrusion main body is thermoplastic.
Further described as the workbench correcting mechanism to above-mentioned 3D printer, also driven including workbench, platform
Movement controller, adjusting knob and printhead drive control device, described printing nozzle are located at directly over workbench, and platform drives
Movement controller drives described workbench movement, and adjusting knob is located on workbench, and the angle of adjustment work platform is described
Printhead drive control device drive described printhead fixed seat to move up and down.
The beneficial effects of the utility model are：1st, the metering system contacted with workbench by printing nozzle, Ke Yiti
Calibration accuracy high, improves the quality of model printing and ensures the stickup stable degree on platform；2nd, individually measurement mould is removed from
Block, makes structure operation simpler, and its reliability is higher, can reduce the risk that operator makes a mistake；3rd, it is not required to consider the material of platform,
Without applying conductive material and connection electric wire on platform, can be with any measurement point of direct detection, can be used in has special replacing need
On the platform structure asked.4th, in the case that in failure or printing, printhead bumps against model, can effectively be delayed using spring
Punching, while activating sensor, makes it stop printing and report an error on a display screen, it is ensured that nozzle security.
Brief description of the drawings
Fig. 1 is the cross-sectional view of this new extruder enclosure；
Fig. 2 is the partial enlargement structure chart at extruding device；
Fig. 3 is the control signal connection diagram of calibration system；
Fig. 4 is the operating diagram at workbench.
Specific embodiment
The utility model is further described below in conjunction with accompanying drawing：
The direction term being previously mentioned in following examples, such as " upper and lower, left and right " they are only the directions of refer to the attached drawing, because
This, the direction term for using is for illustrating not for limiting the utility model.
As Figure 1-4, the workbench correcting mechanism of 3D printer, including extruder shell 1, extruding device H, printing
Nozzle 4 and printhead fixed seat 8, described printing nozzle 4 are fixed in printhead fixed seat 8, and described extruding device is consolidated
Due to the inside of extruder shell 1, described extruding device includes material extrusion main body 5, spring 10, slide block guide rail 7, optical sensor 12
And heart axle 11, described material extrusion body interior is provided with accommodation space, and spring 10, slide block guide rail 7 and printhead fixed seat 8 are equal
In accommodation space, described spring 10 is resisted against the top between slide block guide rail 7 and material extrusion main body 5 and in accommodation space
Portion, described slide block guide rail 7 is embedded in printhead fixed seat 8, is driven by printhead fixed seat 8 and moved up and down, and described squeezes
Material main body outside is provided with location-plate 2, and optical sensor 12 is provided with groove 3 and is fixed on described location-plate 2, described heart axle 11
Be placed on the outside of printhead fixed seat 8, by printhead fixed seat 8 drive move up and down, and heart axle 11 top be located at it is described recessed
In groove 3, because material extrusion main body is not moved, and heart axle 11 with respect to material extrusion main body move up and down when, it will blocked by groove 3
Or the signal of conducting optical sensor, so as to reach the purpose of control.At above-mentioned slide block guide rail 7, it can be by spring
Elastic force carrys out buffer sliding block guide rail, so as to mitigate the infringement of barrier collision or during detection platform height, pressure is excessive and damage
The problem of nozzle.
As further describing for the workbench correcting mechanism to above-mentioned 3D printer, passage 6 is also included, it is described
Passage 6 through material extrusion main body 5, slide block guide rail 7, printhead fixed seat 8 and heart axle 11 center.
As further describing for the workbench correcting mechanism to above-mentioned 3D printer, described printhead fixed seat 8
Outside is provided with multi-disc fin 9, and described heart axle 11 is placed in the top of fin 9, and the fin can be in printhead fixed seat
Support heart axle 11 while heating plasticizing, the purpose multiplex so as to reach structure are carried out to printing consumables.
Further described as the workbench correcting mechanism to above-mentioned 3D printer, described slide block guide rail 7 is stainless
Steel material and coefficient of friction is not more than 0.3 between material extrusion main body, described material extrusion main body 5 preferably, should use coefficient of friction
Low thermoplastic is made.
Further described as the workbench correcting mechanism to above-mentioned 3D printer, also including electric wire 13, printer control
Molding block 14, printer storage 15, display screen 16, platform drive control device 17, workbench 18, printhead drive control device
19 and adjusting knob 20, the electric wire 13 is connected between optical sensor 12 and printer control module 14, by optical sensor
Signal feedback, printer control module 14 can be made to export corresponding control signal, so as to control the operation of printer（Stop
Or continue to print）, and mistake is reported in display screen 16, described printer storage is mainly used to the storage into row information,
In this is new especially, the measurement of coordinates process that the workbench is in contact with printing nozzle is constantly repeated and measurement result
Will be stored in described printer storage 15；Described printing nozzle 4 is located at the surface of workbench 18, and platform drives
Controller 17 can drive described workbench 18 carry out up and down, the movement of horizontal direction, so as to adapt to printing requirement, and adjust
Section knob 20 is located on workbench 18, then to after the detection level depth of parallelism, the angle of adjustment work platform as needed
Degree is used, and described printhead drive control device 19 is used to drive described printhead fixed seat 8 to move up and down, so as to adjust
The distance between section printing nozzle and workbench.
The correcting mechanism operation principle of this work structuring is as follows：
The inside of material extrusion main body is mounted with a slide block guide rail in parallel to each other with passage, is from top to bottom equipped with beats herein
Print head frame and radiator, a compression spring against main body is fitted with slide block guide rail.Filled on printing head frame
Have a heart axle of and optical sensor phase cooperative work, optical sensor electric wire respectively with printer control structure, printer
Storage, display screen and platform drive control device are connected together.Printhead is connected by printhead drive control device and control structure
Come, and can be with the positioning of control platform with adjusting knob.
3D printer control structure sends information, controller because can control to move printhead to printhead drive control device
Dynamic driving is so printhead is placed on above one limit of platform, such as certain point in A areas is above.Platform can vertically press Z
Move axially to ensure nozzle and contact with platform.The light beam of optical sensor has a chong channel to be sent to control when being interrupted by heart axle
Structure, control structure is considered as contact of the nozzle with platform.Following control structure immediately can photos and sending messages drive control to platform
Device processed, to stop the movement of platform and prevent further collision.When shower nozzle is in this position, control structure is driven by printhead
Movement controller and platform drive control device read the coordinate inside the current Cartesian coordinates of printhead, XYZ coordinate form
Print head position will also be stored in printer storage the inside.Next, platform falls and that printhead is moved on into platform is next
Above measurement point, such as B areas.The measurement of coordinates process that this platform is contacted with nozzle is repeated, and the result is burnt to
Printer holder the inside.Printer control structure contrast A areas and B areas point Z axis to height.If between two points
Gap exceedes the scope of error（Error is preferably set to ± 0.1mm）Printer control structure can show on a display screen will
Certain region of platform up or toward lower.In leveling, carried out using the adjusting knob below platform, when Z axis to position more
After just, two points that control structure is surveyed on platform again simultaneously contrast gap of the Z axis to height again.If current gap belongs to
In the range of error, control structure continues to survey the point in other regions（Such as C and D）.Equally, if the height of certain point has exceeded by mistake
Will be shown on poor scope display screen and allow user down or up to be moved using the adjusting knob below platform and by by platform
The notice corrected.By this mode, user carries out just existing by excluding printhead according to the notice on display screen
The position of all out-of-flatnesses on the path moved on platform, and accurately calibrate the work structuring of printer.
The above is not imposed any restrictions to this new technical scope, it is all according to the utility model technical spirit to
On embodiment any modification, equivalent variations and the modification made, still fall within the range of this new technical scheme.
Claims (5)
- The workbench correcting mechanism of 1.3D printers, including extruder shell, extruding device, printing nozzle and printhead are solid Reservation, described printing nozzle is fixed in printhead fixed seat, and described extruding device is fixed on the inside of extruder shell, It is characterized in that：Described extruding device includes material extrusion main body, spring, slide block guide rail, optical sensor and heart axle, and described squeezes Material body interior is provided with accommodation space, and spring, slide block guide rail and printhead fixed seat are respectively positioned in accommodation space, described bullet Spring is resisted against the top between slide block guide rail and material extrusion main body and in accommodation space, and described slide block guide rail is embedded in printing In head fixed seat, driven by printhead fixed seat and moved up and down, described material extrusion main body outside is provided with location-plate, and optical sensor sets It is fluted and be fixed on described location-plate, described spindle sleeve in the outside of printhead fixed seat, by printhead fixed seat Drive is moved up and down, and the top of heart axle is located in the groove.
- 2. the workbench correcting mechanism of 3D printer according to claim 1, it is characterised in that：Also include guide Pipe, described passage passes through the center of material extrusion main body, slide block guide rail, printhead fixed seat and heart axle.
- 3. the workbench correcting mechanism of 3D printer according to claim 1, it is characterised in that：Described printhead is consolidated Reservation outside is provided with multi-disc fin, and described heart axle is placed in the top of fin.
- 4. the workbench correcting mechanism of 3D printer according to claim 1, it is characterised in that：Described slide block guide rail For stainless steel material and between material extrusion main body, coefficient of friction is not more than 0.3, and described material extrusion main body is thermoplastic.
- 5. the workbench correcting mechanism of 3D printer according to claim 1, it is characterised in that：It is also flat including work Platform, platform drive control device, adjusting knob and printhead drive control device, described printing nozzle are just gone up positioned at workbench Side, platform drive control device drives described workbench movement, and adjusting knob is located on workbench, adjustment work platform Angle, described printhead drive control device drives described printhead fixed seat to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621417312.3U CN206287520U (en) | 2016-12-22 | 2016-12-22 | The workbench correcting mechanism of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621417312.3U CN206287520U (en) | 2016-12-22 | 2016-12-22 | The workbench correcting mechanism of 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206287520U true CN206287520U (en) | 2017-06-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621417312.3U Expired - Fee Related CN206287520U (en) | 2016-12-22 | 2016-12-22 | The workbench correcting mechanism of 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206287520U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571794A (en) * | 2020-12-30 | 2021-03-30 | 广州迈普再生医学科技股份有限公司 | 3D print head needle point positioner and have its 3D print head |
| US11167498B2 (en) | 2017-03-06 | 2021-11-09 | D. Swarovski Kg | 3D printing nozzle calibration inside a heated chamber |
-
2016
- 2016-12-22 CN CN201621417312.3U patent/CN206287520U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11167498B2 (en) | 2017-03-06 | 2021-11-09 | D. Swarovski Kg | 3D printing nozzle calibration inside a heated chamber |
| CN112571794A (en) * | 2020-12-30 | 2021-03-30 | 广州迈普再生医学科技股份有限公司 | 3D print head needle point positioner and have its 3D print head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170630 Termination date: 20211222 |