CN113878868B - Head changing device for 3D printing - Google Patents
Head changing device for 3D printing Download PDFInfo
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- CN113878868B CN113878868B CN202111096189.5A CN202111096189A CN113878868B CN 113878868 B CN113878868 B CN 113878868B CN 202111096189 A CN202111096189 A CN 202111096189A CN 113878868 B CN113878868 B CN 113878868B
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- printing head
- printing
- head
- printer
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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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
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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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
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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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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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 invention relates to a head changing device for 3D printing, belongs to the field of design and manufacture of mechanical equipment, and particularly relates to a multi-printing-head changing device in the field of design and manufacture of 3D printing equipment. The head changing device consists of a head changing bracket, a printing head grabber, a printing head storage module, a printing head connector and a printer moving mechanism; the printing head grabber is fixed on the printer moving mechanism; the printing head storage module and the printing head connector are fixed on the head replacing bracket. The device designs a plurality of printing heads of the printer into a column type, and places the printing heads in corresponding printing head storage modules respectively, and the printer grabs and returns the printing heads according to the control of a program to realize the switching of the printing heads. The advantage is that this 3D prints and trades first device has broken through the 3D printer and has beaten the restriction on the extension of printer head quantity, realizes beating the call or the return of printer head to the permutation type through the module group dress mode, has the significance to improving the printer flexibility.
Description
Technical Field
The invention belongs to the field of design and manufacture of mechanical equipment, and particularly relates to a head changing device in the field of design and manufacture of 3D printing equipment.
Background
With the development of science and technology, the 3D printing technology is more and more widely applied. At present, the 3D printer on the market at home and abroad comprises a single printing head printer and a multi-printing head printer, and the printing head of the multi-printing head printer comprises a split printing head and an integrated printing head. In the field of multiple print heads, integrated print heads are mainly used, and the split print heads mainly comprise a double-X double-Y structure. With the development of technologies, 3D printing requirements tend to be diversified more and more, and the development direction of 3D printers also tends to be multi-printing head more and more in the future, such as multi-color printing, multi-material printing, and the like. The existing part-column printing head is difficult to expand due to the structure, for example, 4 printing heads can be installed in double X and double Y, 4 motors are needed for control, the corresponding printing heads are controlled by mutual matching of the motors, the structure is abnormal and complex, and the control is difficult. Although the number of the printing heads can be expanded, the integrated printing heads are heavier and heavier along with the expansion of the number of the printing heads, the response speed is slow, the printing speed is influenced, the requirement on the rigidity of the printer is higher and higher, and the integrated printing heads are easy to interfere in a special printing mode such as a space concave curved surface and difficult to meet the printing requirement. Therefore, the design of the split-type printing head is more beneficial to realizing the expansion and modularization of the printing head. However, there is no technology that can solve the extension of the line printhead at present.
Disclosure of Invention
Aiming at the problems, the invention provides a multi-printing-head changing device, which mainly solves the problem that the number of the split printing heads in the prior art is difficult to expand, breaks through the limitation of the number expansion of the printing heads, realizes the calling or returning of the split printing heads in a modular assembly mode, can well solve the problem of the expansion of the printing heads and has important significance for improving the flexibility of a printer.
The invention belongs to the field of design and manufacture of mechanical equipment, and particularly relates to a multi-printing-head changing device in the field of design and manufacture of 3D printing equipment.
The technical scheme adopted by the invention is as follows:
a head changing device for 3D printing is composed of a head changing support, a printing head grabber, a printing head storage module, a printing head wire connector and a printer moving mechanism; the printing head grabber is fixed on the printer moving mechanism; the printing head storage module and the printing head wire connector are fixed on the head changing bracket.
Further, the printing head grabber consists of a printing head grabber connecting plate, a printing head grabbing claw and a glass bead; the printing head grabber is designed into a claw shape and is connected with the printer moving mechanism through a printing head grabber connecting plate; the moving mechanism of the printer drives the printing head grabber to move, and the printing head grabber is matched with the printing head fixer, so that the required printing head can be called or returned. The printing head grabbing claw is connected with the printing head grabbing device connecting plate through a connecting screw; the upper part and the side surface of the gripping claw of the printing head are provided with positioning glass beads, the positioning mode of the glass beads is a screw thread, and the acting force of the glass beads on the connecting piece of the printing head is adjusted by rotating the glass beads.
Furthermore, the printing head storage module consists of a printing head fixer and a printing head connecting piece; and a plug is arranged behind each printing head storage module and used for wiring the corresponding printing head component. The printing head storage module utilizes the electromagnet to lock and release the printing head connecting piece by the printing head fixer, when the electromagnet is electrified, the printing head connecting piece is in a movable state and can be taken out or put back, and when the electromagnet is powered off, the printing head connecting piece is in a locking state.
The printing head fixer consists of an electromagnet fixing plate, a reset spring, a supporting plate, a positioning pin, an electromagnet fixing screw, a U-shaped locking pin and a split pin; the electromagnet fixing plate is arranged on the supporting plate, and the electromagnet is fixed on the electromagnet fixing plate through a screw; a U-shaped locking pin is assembled in a pin hole of the supporting plate, the U-shaped locking pin is fixed on the electromagnet through a cotter pin, and a return spring is arranged at the tail part of the U-shaped locking pin; two positioning pins are arranged at the front end of the supporting plate and matched with two positioning pin holes of the printing head connecting piece.
Furthermore, the printing head connecting piece is provided with four printing head fixing holes for connecting the printing head to be fixed; the printing head connecting piece is provided with a positioning pin hole and a locking pin hole, the positioning pin hole is used for positioning the printing head connecting piece in the printing head fixer, and the locking pin hole is used for locking the printing head connecting piece in the printing head fixer; the print head connector profile structure can be inserted into a print head gripper and is designed with a bead positioning slot for mating with a bead.
Furthermore, the plug of the printing head wire connector comprises a DB head and an aviation plug.
Further, the number of the printing head storage modules is determined by the number of the printing heads required by the printer, and the size of the head replacement bracket is changed along with the number of the printing head storage modules.
The invention has the advantages that: this 3D prints and trades first device has broken through the 3D printer and has beaten the restriction on the extension of printer head quantity, realizes beating the call or the return of printer head to the partition type through the module group dress mode, solves the problem of beating printer head extension well, has the significance to improving printer flexibility.
Drawings
FIG. 1 is an overall assembly view;
fig. 2 and 3 are assembly views of the head changing device (fig. 2 is a front view, and fig. 3 is a rear view);
FIG. 4 is an assembly view of the printhead storage module;
FIG. 5 is a print head connector feature view;
FIG. 6 is an assembly view of a printhead holder;
fig. 7 is a printhead gripper assembly.
Description of part numbers in the figures: 1. the printing head fixing device comprises a main support, 2 printing head grabbers, 3 printing head storage modules, 4 printing head wire connectors, 5 printing heads, 6 printer frames, 7 printer moving mechanisms, 8 printing head storage modules I and 9 printing head storage modules II and 10 positioning grooves, 11 printing head fixing devices, 12 printing head connecting pieces, 13 printing head fixing holes, 14 glass bead positioning grooves, 15 positioning pin holes, 16 locking pin holes, 17 electromagnet fixing plates, 18 reset springs, 19 supporting plates, 20 positioning pins, 21 electromagnets, 22 electromagnet fixing screws, 23U-shaped locking pins, 24 split pins, 25 printing head grabbing claws, 26 glass beads, 27 printing head grabber connecting plates, 28 screws, 29 screws, 30 pulling plug fixing plates and 31 pulling plugs.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The invention belongs to a multi-printing-head changing device of a 3D printer, wherein a plurality of printing heads of the printer are designed into a column type and are respectively placed in corresponding printing head storage modules, and the printer grabs and returns the printing heads according to the control of a program to realize the switching of the printing heads. The device is fixed on a 3D printer frame 6 and consists of a main support 1, a printing head grabber 2, a printing head storage module 3, a printing head wire connector 4 and a printer moving mechanism 7. The basic idea is to design a printing head storage module 3 to store the printing head 5, wherein one printing head storage module 3 can store one printing head 5; and designing a printing head gripper 2, and calling the printing head which needs to be used or returning the used printing head by using the printing head gripper 2. The printing head storage module 3 is arranged in the positioning groove 10 of the main bracket 1, one main bracket 1 can be provided with a plurality of printing head storage modules 3, and then a plurality of printing heads can be arranged and used in the printer, and the number of the printing head storage modules 3 to be arranged is determined by the number of the printing heads required by the printer. The coordinate position of each printing head storage module 3 is input in the control program, and the moving mechanism 7 of the printer drives the printing head grabber 2 to grab or return the printing heads.
The print head storage module 3 is composed of a print head holder 11 and a print head connector 12. The print head is connected to the print head connector 12 through the print head fixing hole 13 of the print head connector 12, and the print head holder 11 is fixed in the positioning groove 10 of the main frame 1 through the support plate 19 for receiving the print head connector 12. The specific implementation mode is as follows: the locking and releasing of the printing head fixing device 11 to the printing head connecting piece 12 are realized by the electromagnet 21, when the electromagnet 21 is electrified, the printing head connecting piece 12 is in an active state and can be grabbed and returned, and when the electromagnet 21 is powered off, the printing head connecting piece 12 is in a locking state. The electromagnet fixing plate 17 is arranged on the supporting plate 19, the electromagnet 21 is fixed on the electromagnet fixing plate 17 through an electromagnet fixing screw 22, a U-shaped locking pin 23 is assembled in a pin hole of the supporting plate 19, the U-shaped locking pin 23 is fixed on the electromagnet 21 through a split pin 24, and a reset spring 18 is arranged at the tail part of the U-shaped locking pin 23; the U-shaped locking pin 23 can move up and down under the action of the electromagnet 21 and the return spring 18, and two positioning pins 20 are arranged at the front end of the supporting plate 19 and are matched with two positioning pin holes (15) of the printing head connecting piece 12; when the print head connecting piece 12 is inserted into the two positioning pins 20 of the print head holder 11, the U-shaped locking pin 23 is aligned with the locking pin hole 16 of the print head connecting piece 12, and when the electromagnet 21 is not operated, the U-shaped locking pin 23 is ensured to be always inserted into the locking pin hole 16 of the print head connecting piece 12 by the action of the return spring 18.
The printing head grabber 2 is a device for realizing the calling or returning of the printing head, is connected with the moving mechanism 7 of the printer through a printing head grabber connecting plate 27 and comprises a printing head grabbing claw 25 and a glass bead 26; the print head gripper claw 25 is connected to the print head gripper connection plate 27 by a screw 28; the print head grabbing claw 25 is provided with a positioning glass bead 26, when the print head connecting piece 12 is inserted into the print head grabber 2, 2 glass beads on the side face are matched with the side face of the print head connecting piece 12, a reverse acting force is applied to the print head connecting piece 12 to enable the other side of the print head connecting piece to be attached to the print head grabbing claw 25, and 4 positioning glass beads on the upper end of the print head grabbing claw 25 are matched with 4 glass bead positioning grooves 14 on the print head connecting piece 12 to play a role in positioning and clamping. The printing head gripper 2 realizes the positioning and clamping of the printing head connecting piece 12 through the clamping force generated by the glass beads 26, when the electromagnet 21 is de-energized, the printing head connecting piece 12 is locked in the printing head fixing device 11, and when the printer moving mechanism 7 drives the printing head gripper 2 to withdraw from the printing head fixing device 11, the printing head connecting piece 12 is left in the printing head fixing device 11; when the electromagnet 21 is electrified, the printing head connecting piece 12 is not locked, and the printing head grabber 2 can take out the printing head connecting piece 12, so that the printing head connecting piece 12 can be called and returned.
The working flow of the multi-printing-head changing device of the 3D printer is as follows: numbering each printing head storage module, storing the corresponding coordinate position in the control system, driving the printing head grabber 2 to move by the printer moving part 7, returning the printing heads in the printing head grabber 2 to the corresponding printing head fixer 11, and grabbing other printing heads to be used. The specific process of returning is as follows: the printing head grabber 2 carries the printing head connecting piece 12 which is used for fixing the printing head to be returned to stop in front of the printing head fixing device 11 of the printing head connecting piece, the electromagnet 21 is powered on at the moment, the U-shaped locking pin 23 used for locking the printing head connecting piece 12 is pulled up, then the printing head grabber 2 carries the printing head connecting piece 12 which is used for fixing the printing head to be returned to be inserted into the printing head fixing device 11 which is used for fixing the printing head connecting piece, then the electromagnet 21 is powered off, the U-shaped locking pin 23 is inserted into the locking pin hole 16 of the printing head connecting piece 12, the printing head connecting piece 12 is locked, then the printing head grabber 2 moves to be far away from the printing head fixing device 3, and the printing head connecting piece 12 and the corresponding printing head are returned to the corresponding printing head fixing device 11; the specific process of grabbing and calling is as follows: the printing head grabber 2 is inserted into the printing head holder 11 of the printing head to be called, the electromagnet 21 is electrified, the U-shaped locking pin 23 is lifted, the printing head connecting piece 12 is released, the printing head grabber 2 is carried with the printing head to be called and exits from the printing head holder 11, then the electromagnet 21 is powered off, and the printing head calling is finished.
The plug 31 for connecting the components of the printing head is inserted into the plug holder 30, and the plug holder 30 is fixed to the main frame 1 by screws 29.
Claims (5)
1. A trades head device for 3D prints characterized in that: the head changing device consists of a head changing bracket (1), a printing head grabber (2), a printing head storage module (3), a printing head wire connector (4) and a printer moving mechanism (7); the printing head grabber (2) is fixed on the printer moving mechanism (7); the printing head storage module (3) and the printing head connector (4) are fixed on the head replacing bracket (1);
the printing head storage module (3) consists of a printing head fixer (11) and a printing head connecting piece (12); the printing head fixer (11) consists of an electromagnet fixing plate (17), a return spring (18), a supporting plate (19), a positioning pin (20), an electromagnet (21), an electromagnet fixing screw (22), a U-shaped locking pin (23) and a split pin (24); the electromagnet fixing plate (17) is arranged on the supporting plate (19), and the electromagnet (21) is fixed on the electromagnet fixing plate (17) through a screw (22); a U-shaped locking pin (23) is assembled in a pin hole of the supporting plate (19), the U-shaped locking pin (23) is fixed on the electromagnet (21) through a split pin (24), and a return spring (18) is installed at the tail part of the U-shaped locking pin (23); the front end of the supporting plate (19) is provided with two positioning pins (20) which are matched with two positioning pin holes (15) of the printing head connecting piece (12);
the printing head connecting piece (12) is provided with four printing head fixing holes (13) for connecting the printing heads to be fixed; the printing head connecting piece (12) is provided with a positioning pin hole (15) and a locking pin hole (16), the positioning pin hole (15) is used for positioning the printing head fixing piece in the printing head fixing device (11), and the locking pin hole (16) is used for locking the printing head fixing piece in the printing head fixing device (11); the outline structure of the printing head connecting piece (12) can be inserted into the printing head grabber (2) and is provided with a glass bead positioning groove (14) used for being matched with a glass bead (26), and the positioning glass bead (26) at the upper end of the printing head grabbing claw (25) is matched with the glass bead positioning groove (14) on the printing head connecting piece (12).
2. The head changing device for 3D printing according to claim 1, wherein: the printing head grabber (2) consists of a printing head grabber connecting plate (27), a printing head grabbing claw (25) and a glass bead (26); the printing head grabber (2) is designed into a claw shape and is connected with the printer moving mechanism (7) through a printing head grabber connecting plate (27); a moving mechanism (7) of the printer drives the printing head grabber (2) to move and is matched with the printing head fixer, so that the required printing head can be called or returned; the printing head grabbing claw (25) is connected with a printing head grabbing device connecting plate (27) through a connecting screw (28); the upper part and the side surface of the printing head grabbing claw (25) are provided with positioning glass beads (26), the positioning mode of the glass beads (26) is a screw thread, and the acting force of the glass beads (26) on the printing head connecting piece (12) is adjusted by rotating the glass beads (26).
3. The head changing device for 3D printing according to claim 1, wherein: a plug is arranged behind each printing head storage module and used for wiring the corresponding printing head component; the printing head storage module (3) uses the electromagnet (21) to realize the locking and releasing of the printing head fixer (11) to the printing head connecting piece (12), when the electromagnet (21) is electrified, the printing head connecting piece (12) is in a movable state and can be taken out or put back, and when the electromagnet (21) is powered off, the printing head connecting piece (12) is in a locking state.
4. The head changing device for 3D printing according to claim 1, wherein: the plug (31) of the printing head wire connector comprises a DB head and an aviation plug.
5. The head changing device for 3D printing according to claim 1, wherein: the number of the printing head storage modules (3) is determined by the number of printing heads required by the printer, and the size of the head changing bracket is changed along with the number of the printing head storage modules (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111096189.5A CN113878868B (en) | 2021-09-15 | 2021-09-15 | Head changing device for 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111096189.5A CN113878868B (en) | 2021-09-15 | 2021-09-15 | Head changing device for 3D printing |
Publications (2)
| Publication Number | Publication Date |
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| CN113878868A CN113878868A (en) | 2022-01-04 |
| CN113878868B true CN113878868B (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111096189.5A Active CN113878868B (en) | 2021-09-15 | 2021-09-15 | Head changing device for 3D printing |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201794405U (en) * | 2010-09-16 | 2011-04-13 | 浙江申达机器制造股份有限公司 | Protective sliding door self-locking mechanism of electric injection molding machine |
| TWI576219B (en) * | 2011-12-09 | 2017-04-01 | 峰鉅有限公司 | Positioning structure for a quick-release extension rod |
| CN204346116U (en) * | 2014-12-25 | 2015-05-20 | 贵州永兴科技有限公司 | A kind of translation open-type universal electric furnace switch with fingerprint identification function |
| WO2017168548A1 (en) * | 2016-03-29 | 2017-10-05 | 東芝三菱電機産業システム株式会社 | Metal laminating/shaping device |
| CN106042398A (en) * | 2016-07-29 | 2016-10-26 | 华南理工大学 | Automatic switching device for 3D (three-dimensional) printing head |
| CN107185259A (en) * | 2017-06-30 | 2017-09-22 | 美科科技（北京）有限公司 | Electronic module and modular electronic construction system for multi-orientation connection |
| CN110978496A (en) * | 2019-12-18 | 2020-04-10 | 赵天宇 | Multi-printing-head automatic head-changing rapid-forming 3d printer and printing method thereof |
| CN112757636A (en) * | 2020-12-30 | 2021-05-07 | 深圳市纵维立方科技有限公司 | Printing head switching assembly and printer |
| CN113263191A (en) * | 2021-05-11 | 2021-08-17 | 瑞丰口腔科技（深圳）有限公司 | Laser 3D printing equipment for false teeth and machining process thereof |
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| CN113878868A (en) | 2022-01-04 |
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