CN110884115A - Accurate feeding control device of 3D printer - Google Patents
Accurate feeding control device of 3D printer Download PDFInfo
- Publication number
- CN110884115A CN110884115A CN201911103429.2A CN201911103429A CN110884115A CN 110884115 A CN110884115 A CN 110884115A CN 201911103429 A CN201911103429 A CN 201911103429A CN 110884115 A CN110884115 A CN 110884115A
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- Prior art keywords
- opening
- printer
- control device
- feeding
- wheel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The embodiment of the invention discloses a precise feeding control device of a 3D printer, which comprises: the device comprises a base, a pressure rod, an elastic piece, a feeding wheel, a driving device, a light emitter and a receiver, wherein the light emitter is matched with the receiver; the feeding wheel and the friction wheel are arranged at the bottom of the opening, the solid printing supplies penetrate out of the bottom of the opening and then enter between the feeding wheel and the friction wheel, and the elastic piece is in a tension state, so that the friction wheel and the feeding wheel extrude the solid printing materials to generate friction force to drive the solid printing supplies to move; the illuminator is luminous, and the receiver is gathered the image of the solid state printing consumptive material in the inlet port to confirm the diameter of solid state printing consumptive material according to the image, confirm the volume of the solid state printing consumptive material through the trompil with the diameter according to the solid state printing consumptive material, drive arrangement's slew velocity is according to the volume adjustment of the solid state printing consumptive material through the trompil.
Description
Technical Field
The invention relates to the field of printers, in particular to a precise feeding control device of a 3D printer.
Background
The 3D feeding drive mainly adopts a stepping motor, the friction force between a feeding wheel, a pressing wheel and a silk material is utilized for feeding, and the material is easy to slide due to the change of resistance or the diameter of the material in the feeding process, so that the phenomenon of material shortage is caused.
Disclosure of Invention
In order to solve the technical problems, the embodiment of the invention provides an accurate feeding control device for a 3D printer.
A first aspect of an embodiment of the present invention provides a precise feeding control device for a 3D printer, where the device includes:
a base;
the pressing rod is fixed on the base and provided with an opening, a first opening, a second opening and a friction wheel, the top of the opening is used for cylindrical solid printing consumables to pass through, so that the solid printing consumables enter the opening, the first opening and the second opening are located between two ends of the opening, and the radial sizes of the first opening and the second opening in the opening are larger than the diameter of the opening;
one end of the elastic piece is connected with the pressure lever, and the other end of the elastic piece is connected with the base;
a feed wheel;
the driving device is used for driving the feeding wheel to rotate;
a light emitter mounted at the first opening; and
a receiver mounted at the second opening, the light emitter and the receiver cooperating;
the feeding wheel and the friction wheel are arranged at the bottom of the opening, solid printing consumables penetrate out of the bottom of the opening and then enter a space between the feeding wheel and the friction wheel, and the elastic piece is in a tension state, so that the friction wheel and the feeding wheel extrude the solid printing consumables to generate friction force, and the solid printing consumables are driven to move;
the illuminator is luminous, the receiver is gathered the image of the solid state printing consumptive material in the feed port, with according to the diameter of image definite solid state printing consumptive material, with according to the diameter of solid state printing consumptive material confirm through the volume of the solid state printing consumptive material of trompil, drive arrangement's slew velocity according to pass through the volume regulation of the solid state printing consumptive material of trompil.
Optionally, the first opening and the second opening are directly opposite.
Optionally, the feed wheel is a gear.
Optionally, the driving device includes a motor, and a spindle of the motor penetrates through the base and is connected with the feeding wheel, so as to drive the feeding wheel to rotate.
Optionally, the light emitter is embedded in the first opening.
Optionally, the receiver is embedded in the second opening.
Optionally, the receiver is a CCD image sensor or a CMOS image sensor.
Optionally, the resilient member is a spring.
A second aspect of an embodiment of the present invention provides a printer including:
a feed pipe; and
according to the precise feeding control device for the 3D printer in the first aspect of the embodiment of the invention, the bottom of the opening of the feeding device is opposite to the top of the feeding pipe.
According to the technical scheme provided by the embodiment of the invention, the feeding is detected by using an optical imaging principle, the real-time feeding amount is calculated, and the rotating speed of the driving device is adjusted according to the real-time feeding amount, so that the accurate control of the feeding amount is realized, and the printing quality is improved.
Drawings
Fig. 1 is a schematic structural diagram of a precise feeding control device of a 3D printer according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a structure of a precise feeding control device of a 3D printer according to an embodiment of the present invention.
Reference numerals:
100: a solid state printing supply;
1: a base; 2: a pressure lever; 21: opening a hole; 22: a first opening; 23: a friction wheel; 24: a screw shaft; 3: an elastic member; 4: a feed wheel; 5: a drive device; 51: a main shaft; 6: a light emitter; 7: a receiver.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the following embodiments may be combined without conflict.
Referring to fig. 1 and fig. 2, an embodiment of the invention provides a precise feeding control device for a 3D printer, which may include a base 1, a pressing rod 2, an elastic member 3, a feeding wheel 4, a driving device 5, a light emitter 6, and a receiver 7. Wherein, the pressure bar 2 is fixed on the base 1, the pressure bar 2 of this embodiment has the trompil 21, the first opening 22, the second opening and the friction wheel 23, and the top of the trompil 21 is used for supplying the cylindric solid state printing consumptive material 100 to pass through, makes the solid state printing consumptive material 100 get into in the trompil 21, and, the solid state printing consumptive material 100 can wear out from the bottom of opening. It should be understood that the solid state printing consumable 100 may also be in other regular shapes, not limited to a cylindrical state. In the present embodiment, the first opening 22 and the second opening are located between both ends of the opening 21, that is, the first opening 22 and the second opening are located between the top of the opening 21 and the bottom of the opening 21. Further, the first opening 22 and the second opening of the present embodiment have a size larger than the diameter of the opening 21 in the radial direction of the opening 21. The feeding wheel 4 and the friction wheel 23 are arranged at the bottom of the opening hole 21, the light emitter 6 is arranged at the first opening 22, the receiver 7 is arranged at the second opening, and the light emitter 6 is matched with the receiver 7.
In this embodiment, one end of the elastic member 3 is connected to the pressing rod 2, and the other end of the elastic member 3 is connected to the base 1. When feed arrangement carries out the feeding operation, in solid-state printing consumptive material 100 got into the opening from the top of trompil 21, drive arrangement 5 was used for driving feed wheel 4 and rotates, and solid-state printing consumptive material 100 wears out the back from the bottom of trompil 21, gets into between feed wheel 4 and the friction pulley 23, and elastic component 3 is tension state, makes friction pulley 23 and 4 extrusion solid-state printing materials of feed wheel produce frictional force to drive solid-state printing consumptive material 100 and remove.
Further, the light emitter 6 emits light, and the receiver 7 collects an image of the solid printing supplies 100 in the feeding hole to determine the diameter of the solid printing supplies 100 according to the image and determine the volume of the solid printing supplies 100 passing through the opening 21 according to the diameter of the solid printing supplies 100, and the diameter of the solid printing supplies 100 determines the volume of the solid printing supplies 100 passing through the opening 21, that is, the feeding amount of the solid printing supplies 100. In the present embodiment, the rotational speed of the driving device 5 is adjusted according to the volume of the solid state printing consumable 100 passing through the opening 21.
The accurate feeding control device for the 3D printer, provided by the embodiment of the invention, detects feeding by using an optical imaging principle, calculates the real-time feeding amount, and adjusts the rotating speed of the driving device 5 according to the real-time feeding amount, so that the accurate control of the feeding amount is realized, and the printing quality is improved.
The accurate feeding controlling means of 3D printer of this embodiment can also include the controller, controller and receiver 7, drive arrangement 5 is connected electrically respectively, the diameter of solid-state printing consumptive material 100 is confirmed according to the image that receiver 7 gathered to the controller, and confirm the volume of the solid-state printing consumptive material 100 that passes through trompil 21 according to the diameter of solid-state printing consumptive material 100, confirm the volume and the target volume of the solid-state printing consumptive material 100 that passes through trompil 21 according to the diameter of solid-state printing consumptive material 100 again, the rotational speed of control drive arrangement 5, make the volume of the solid-state printing consumptive material 100 that passes through trompil 21 tend to the target volume, reach the purpose.
Wherein, when the target volume is larger than the volume of the solid printing consumables 100 passing through the opening 21, the controller increases the rotational speed of the driving device 5 according to the difference between the target volume and the volume of the solid printing consumables 100 passing through the opening 21, thereby increasing the feeding amount; when the target volume is smaller than the volume of the solid printing consumable 100 passing through the opening 21, the controller reduces the rotational speed of the driving device 5 according to the difference between the target volume and the volume of the solid printing consumable 100 passing through the opening 21, thereby reducing the feeding amount.
Optionally, in some embodiments, the first opening 22 and the second opening are aligned, which facilitates alignment of the light emitter 6 and the receiver 7, thereby ensuring that a complete radial image of the solid state printing consumable 100 is captured. Of course, in other embodiments, the first opening 22 and the second opening may not be directly opposite, but the light emitter 6 and the receiver 7 need to cooperate to obtain an image of the solid state printing consumable 100.
The shape of the first opening 22 and the second opening may be set as needed, for example, the first opening 22 and the second opening may be square, circular, or other shapes.
The feeding wheel 4 of the embodiment may be a gear or other rotating wheel.
The structure of the driving device 5 can be selected according to the needs, for example, in some embodiments, please refer to fig. 1, the driving device 5 includes a motor, a main shaft 51 of the motor penetrates through the base 1 and then is connected with the feeding wheel 4, and the main shaft 51 rotates to drive the feeding wheel 4 to rotate synchronously. It will be appreciated that the drive means 5 may also be designed in other configurations.
Alternatively, the light emitter 6 is embedded in the first opening 22, but the light emitter 6 may be fixed in the first opening 22 in other fixing manners.
Optionally, the receiver 7 is embedded in the second opening, but the receiver 7 may be fixed in the second opening in other fixing manners.
The type of light emitter 6 may be selected as desired, for example, the light emitter 6 may be an LED light source; it should be understood that the light emitter 6 may also be other types of light emitting sources.
The type of receiver 7 may also be selected as desired, optionally the receiver 7 is a CCD image sensor or a CMOS image sensor or other image sensor.
The elastic member 3 may be a spring, or may be another type of elastic structure.
Further, referring to fig. 1, the pressing rod 2 can rotate around the bolt shaft 24 to facilitate feeding of the opening 21.
The embodiment of the invention also provides a printer, which can comprise a feeding pipe and the accurate feeding control device of the 3D printer, wherein the bottom of the opening 21 of the feeding device is opposite to the top of the feeding pipe. In this embodiment, the solid state printing supplies 100 penetrate out of the bottom of the opening and enter the feed tube, and then are heated in the feed tube to form molten state printing supplies, and finally are extruded by the extrusion head of the printer to realize printing. The molten state printing consumables are liquid state printing consumables.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The accurate feed control device of 3D printer, its characterized in that, the device includes:
a base (1);
the pressing rod (2) is fixed on the base (1), the pressing rod (2) is provided with an opening (21), a first opening (22), a second opening and a friction wheel (23), the top of the opening (21) is used for allowing cylindrical solid printing consumables to pass through, so that the solid printing consumables enter the opening (21), the first opening (22) and the second opening are located between two ends of the opening (21), and the radial size of the first opening (22) and the second opening in the opening (21) is larger than the diameter of the opening (21);
one end of the elastic piece (3) is connected with the pressure lever (2), and the other end of the elastic piece (3) is connected with the base (1);
a feeding wheel (4);
the driving device (5) is used for driving the feeding wheel (4) to rotate;
a light emitter (6) mounted at the first opening (22); and
a receiver (7) mounted at the second opening, the light emitter (6) and the receiver (7) cooperating;
the feeding wheel (4) and the friction wheel (23) are arranged at the bottom of the hole (21), solid printing consumables penetrate out of the bottom of the hole (21) and enter a space between the feeding wheel (4) and the friction wheel (23), and the elastic piece (3) is in a tension state, so that the friction wheel (23) and the feeding wheel (4) extrude a solid printing material to generate friction force to drive the solid printing consumables to move;
the illuminator (6) emits light, the receiver (7) collects an image of the solid printing supplies in the feeding hole, the diameter of the solid printing supplies is determined according to the image, the volume of the solid printing supplies passing through the hole (21) is determined according to the diameter of the solid printing supplies, and the rotating speed of the driving device (5) is adjusted according to the volume of the solid printing supplies passing through the hole (21).
2. The precise feed control device of a 3D printer according to claim 1, characterized in that the first opening (22) and the second opening are directly opposite.
3. The precise feed control device of a 3D printer according to claim 1, characterized in that the feeding wheel (4) is a gear.
4. The accurate feeding control device of the 3D printer according to claim 1, characterized in that the driving device (5) comprises a motor, and a main shaft (51) of the motor is connected with the feeding wheel (4) after passing through the base (1) and is used for driving the feeding wheel (4) to rotate.
5. The precise feed control device of a 3D printer according to claim 1, characterized in that the light emitter (6) is embedded in the first opening (22).
6. 3D printer precision feed control device according to claim 1, characterized in that the receiver (7) is embedded in the second opening.
7. 3D printer precision feed control device according to claim 1, characterized in that the receiver (7) is a CCD image sensor or a CMOS image sensor.
8. The 3D printer precision feed control device according to claim 1, characterized in that the elastic member (3) is a spring.
9. A printer, characterized in that the printer comprises:
a feed pipe; and
the 3D printer precise feed control device of any one of claims 1 to 8, the bottom of the opening (21) of the feed device is directly opposite to the top of the feed tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911103429.2A CN110884115A (en) | 2019-11-13 | 2019-11-13 | Accurate feeding control device of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911103429.2A CN110884115A (en) | 2019-11-13 | 2019-11-13 | Accurate feeding control device of 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110884115A true CN110884115A (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911103429.2A Pending CN110884115A (en) | 2019-11-13 | 2019-11-13 | Accurate feeding control device of 3D printer |
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| CN (1) | CN110884115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111391323A (en) * | 2020-04-03 | 2020-07-10 | 刘华军 | Wire feeding mechanism of 3D printer |
| US20220118711A1 (en) * | 2020-10-20 | 2022-04-21 | Seiko Epson Corporation | Three-Dimensional Shaping Device And Method For Manufacturing Three-Dimensional Shaped Object |
-
2019
- 2019-11-13 CN CN201911103429.2A patent/CN110884115A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111391323A (en) * | 2020-04-03 | 2020-07-10 | 刘华军 | Wire feeding mechanism of 3D printer |
| US20220118711A1 (en) * | 2020-10-20 | 2022-04-21 | Seiko Epson Corporation | Three-Dimensional Shaping Device And Method For Manufacturing Three-Dimensional Shaped Object |
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