CN207273877U - A kind of achieving automatic head replacement device of FDM printing devices - Google Patents
A kind of achieving automatic head replacement device of FDM printing devices Download PDFInfo
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- CN207273877U CN207273877U CN201720609038.8U CN201720609038U CN207273877U CN 207273877 U CN207273877 U CN 207273877U CN 201720609038 U CN201720609038 U CN 201720609038U CN 207273877 U CN207273877 U CN 207273877U
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- Prior art keywords
- printhead
- hole
- gear
- transposition
- replacement device
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Abstract
It the utility model is related to a kind of achieving automatic head replacement device of FDM printing devices in FDM 3D printing equipment technologies field,Including extrusion axle and achieving automatic head replacement device,The discharge end of the extrusion axle is equipped with discharge hole,Discharge hole internal thread is connected with printhead,Achieving automatic head replacement device includes printhead fixed seat,Some mounting holes are placed with printhead fixed seat,It is rotatablely connected respectively by the gear shaft of bearing and some intermeshing travelling gears in mounting hole,Driving motor is fixed with the rack,Driving gear is connected with the output shaft of the driving motor,The driving gear is engaged with a wherein travelling gear,It is described driving motor can forward or reverse movement realize rotating forward or rotating anyway for each travelling gear,The shaft end center of each travelling gear is equipped with the printhead transposition hole of regular polygon,The printhead transposition hole, which is used to coordinate, places printhead,The periphery of the printhead lower part is equipped with the polygonal shape coordinated with printhead transposition interporal lacuna.
Description
Technical field
The printhead auxiliary equipment technical field of FDM 3D printing equipment is the utility model is related to, it is especially a kind of to be used to print
On-line automatic more changing device.
Background technology
As people explore and innovate to the continuous of equipment manufacturing field so that 3D printing increasing material manufacturing is in each manufacturing field
Receive significant attention and promote and apply, wherein FDM 3D printing techniques are one of increasing material manufacturing major ways.
Generally it is threadedly coupled between the printhead of FDM equipment and outlet, cohesive material could be extruded after heating.Mesh
Before, FDM is in product mold of the Industrial Printing field there are some bottlenecks, such as printing complexity, due to each position wheel of identical product
Wide not of uniform size, during using same size printhead prints, efficiency and quality can not be taken into account.The larger mould of usual profile, such as
Fruit uses small printhead prints, then efficiency is too low, and the big extruder head of diameter can be used to carry out printing speed；And accurate position or
Less profile, cannot be guaranteed product quality, it is necessary to be printed using the small extruder head of diameter, with this using big printhead
To ensure the print quality at each position, therefore the printhead that different profiles needs matching diameter different is printed.This
Sample one, on the premise of print quality is ensured, in order to improve printing effect, it is necessary to frequent according to the profile size of print position
Replace printhead in ground.
In practical operation, printhead is replaced using manual mode, inefficiency is replaced, not only influences beating for equipment indirectly
The problem of printing efficiency, being additionally, since resetting, easily causes print quality problem；Also, printhead temperature is high, manually more
Change more difficult.Therefore, people have developed such issues that device replaced automatically to printhead is to solve.
In research before, a patent application was proposed, it is a kind of to apply to more changing the outfit for FDM3D printer extruder head
Put, patent publication No. CN205439272U.The device can be clamped printhead using clamp system, realize and move certainly
Head, in the utility model device, extruder head is directly placed in extruder head placing groove by printhead when replacing, and is not carried out structure
Sealing and printhead dismount when screw function, after printhead is changed, remaining printed material solidifies at normal temperatures, will print
Head blocks, if as cleaned up when cleaning reuses the printhead not in time, it is necessary to manually remove printhead in printhead
The surplus material of remnants, can cause printhead not connect or connect unstable, the problem of material leaks when can also print.The structure
In and printed material is plastic material used by FDM printing devices, its print principle be to be changed into after plastic material reaches fusing point
Liquid, then realizes extrusion and the printing of material by extruder head., it is necessary to be carried out not to plastic material in whole printing process
Heat disconnectedly.
Utility model content
The utility model replaces deficiency existing for apparatus structure for FDM printheads in the prior art, there is provided a kind of FDM is beaten
The achieving automatic head replacement device of printing apparatus, to ensure the automatic printhead for rapidly replacing different size repeatedly in print procedure, to carry
High printing effect and print quality.
The purpose of this utility model is achieved in that a kind of achieving automatic head replacement device of FDM printing devices, including can be along X
The extrusion axle and the achieving automatic head replacement device being fixed in rack, the discharge end of the extrusion axle that axis, Y-axis and Z-direction move are set
There is discharge hole, the discharge hole internal thread is connected with printhead, and the achieving automatic head replacement device includes printhead fixed seat, described to beat
Some mounting holes are placed with print head fixed seat, pass through bearing and some intermeshing travelling gears respectively in the mounting hole
Gear shaft rotation connection, driving motor is fixed with the rack, driving tooth is connected with the output shaft of the driving motor
Wheel, the driving gear engage with a wherein travelling gear, it is described drive motor can forward or reverse move and realize each transmission
Gear rotating forward or rotating anyway, and the shaft end center of each travelling gear is equipped with the printhead transposition hole of regular polygon,
The printhead replaces hole for coordinating placement printhead, and the periphery of the printhead lower part is equipped with and printhead transposition interporal lacuna
The polygonal shape of cooperation.
The achieving automatic head replacement device of the FDM printing devices of the utility model, printhead transposition hole are used to place different size
Printhead, in case replaced online during use, and the matching part between printhead transposition hole and printhead is clearance fit
Regular polygon structure, rapid abutting joint and taking-up when being both conveniently replaceable printhead, are also convenient for printhead during gear forward and reverse rotation
The dismounting of screw connection structure between the extrusion cavities of extrusion axle.When needing replacing printhead, printhead can be with extrusion axle
The correspondence position of achieving automatic head replacement device is moved to along X-axis, Y-axis and Z axis, with the sky for not placing printhead in printhead fixed seat
The docking of position hole, driving motor drive each gear to rotate, first unscrew the connection screw thread between printhead and extrusion axle, then extrusion axle
The position of another placement printhead for preparing to replace is moved to again, drives printhead to rotate by gear drive again after alignment
Realize that the screw thread of printhead and extrusion axle screws connection.
It is used to mounting hole of printhead etc. be installed for ease of realizing that the rotation of printhead dismounts, in the printhead fixed seat
One word of spacing is arranged, and is rotatablely connected a travelling gear respectively in each mounting hole, each travelling gear engages successively, the driving tooth
The gearratio of wheel and each travelling gear is 1：1.
For ease of realizing the cleaning discharge of remaining printed material in printhead, the length direction two of the printhead fixed seat
Side is respectively equipped with fire-bar, and the printhead transposition hole is along gear shaft axially through whole gear shaft.Printed when needing replacing
During head, printhead is first heated to by the temperature that printed material can melt by fire-bar in advance before changing, and in gravity
From the printhead transposition hole lower part discharge of perforation under effect.
The one of transposition hole in each printhead transposition hole of the printhead fixed seat is used to dismantle and store for room hole
Printhead in extrusion axle, remaining each printhead transposition hole are used to place printhead.
Brief description of the drawings
Fig. 1 is the achieving automatic head replacement device scheme of installation of the FDM printing devices of the utility model.
Fig. 2 is the structure diagram of achieving automatic head replacement device.
Fig. 3 is the left view of Fig. 2.
Wherein, 1 X-axis frame, 2 Y-axis frames；3 extrusion axles；4 achieving automatic head replacement devices；5 printheads；401 driving motors；
402 driving gears；403 spare printheads；404 bearings；405 printheads transposition hole；406 travelling gears；407 printheads are fixed
Seat；408 fire-bars.
Embodiment
It is the achieving automatic head replacement device of the FDM printing devices of the utility model as shown in Figure 1, Figure 2 and Figure 3, including can be along X
The extrusion axle 3 and the achieving automatic head replacement device 4 being fixed in rack, the discharge end of extrusion axle 3 that axis, Y-axis and Z-direction move are equipped with
Discharge hole, discharge hole internal thread are connected with printhead 5.In the present embodiment, extrusion axle 3 is installed on Y-axis frame, can be along Y-axis frame
The Y direction movement of frame, Y-axis frame are straddled between two X-axis frames and can moved along X-axis frame, and extrusion axle 3 itself can edge
Z-direction moves, and the print track of printhead 5 can control extrusion axle 3 along X-axis, Y-axis and Z by the control unit of FDM printers
The movement of axis is realized.Achieving automatic head replacement device 4 includes printhead fixed seat 406, and some installations are placed with printhead fixed seat 406
Hole, is rotatablely connected in mounting hole by the gear shaft of bearing 404 and some intermeshing travelling gears 405, in rack respectively
Driving motor 401 is fixed with, drives and is connected with driving gear 402, driving gear 402 and wherein one on the output shaft of motor 401
Travelling gear 405 engages, driving motor 41 can forward or reverse movement realize rotating forward or anyway for each travelling gear 405
Rotate, the shaft end center of each travelling gear 405 is equipped with the printhead transposition hole 405 of regular polygon, and printhead transposition hole 405 is used for
Coordinating and place printhead, the periphery of printhead lower part is equipped with the polygonal shape with printhead transposition 405 clearance fit of hole, so as to
Coordinate in printhead and be placed in printhead transposition hole 405.
As shown in Fig. 2, in the structure of the present embodiment, A, B, C, D tetra- is respectively equipped with printhead fixed seat 406 and is used to pacify
The mounting hole of printhead is filled, and an equidistant word is arranged, and is rotatablely connected a travelling gear 406 respectively in each mounting hole, respectively
Travelling gear 406 engages successively, driving gear 402 be installed on most edge location A travelling gear side and with the position
Travelling gear engages, and driving gear 402 and the gearratio of each travelling gear are 1：1.When the 3D of a print module was printed
When the printhead of multiple and different specifications is needed replacing in journey, one is at least stayed in each printhead transposition hole of printhead fixed seat 407
A transposition hole is used to dismantle and store the printhead in extrusion axle 3 for room hole, remaining each printhead transposition hole is used to place
The spare printhead 403 of different size.
For ease of the cleaning of printed material remaining in printhead is discharged, the length direction two of printhead fixed seat 407
Side is respectively equipped with fire-bar 408, printhead replace hole 405 along gear shaft axially through whole gear shaft, in order to printhead
Interior salvage stores discharge.When needing replacing printhead, first printhead is heated to by fire-bar 408 in advance before changing
The temperature that printed material can melt, and under the effect of gravity from the lower part discharge in the printhead transposition hole of perforation.
The achieving automatic head replacement device of the FDM printing devices of the utility model, printhead transposition hole 405 are used to place different size
Printhead, in case replaced online during use, and the matching part between printhead transposition hole and printhead is clearance fit
Regular polygon structure, rapid abutting joint and taking-up when being both conveniently replaceable printhead, are also convenient for printing during the forward and reverse rotation of gear
The dismounting of screw connection structure between head and the extrusion cavities of extrusion axle.When needing replacing printhead, printhead can be with extrusion
Axis is moved to the correspondence position of achieving automatic head replacement device along X-axis, Y-axis and Z axis, with not placing printing in printhead fixed seat 407
The room hole docking of head, driving motor 401 drive each gear to rotate, first unscrew the connection spiral shell between printhead 5 and extrusion axle 3
Line, then extrusion axle 3 be moved to again it is another prepare replace spare printhead 403 position, pass through gear drive after alignment again
Mechanism drives spare printhead rotation to realize that spare printhead is screwed with the screw thread of extrusion axle 3 and is connected, and completes the installation of printhead
In order to the 3D printing of next step.Therefore the achieving automatic head replacement device of the FDM printing devices of the utility model, it is possible to achieve FDM
During 3D printing, the on-line automatic replacement during the printhead prints of different size, can pass through heating in advance before replacement
Mode the salvage stores heating in printhead is removed out, it is not necessary to artificial participation in addition, it is possible to achieve identical product is different
The online of position does not shut down printing, realizes the printing effect and print quality of optimization.
The utility model is not limited to above-described embodiment, the basis of every technical solution disclosed in the utility model
On, those skilled in the art is according to disclosed technology contents, it is not necessary to which performing creative labour can be to some of which
Technical characteristic makes some and replaces and deform, these are replaced and deformation is in the range of the utility model protection.
Claims (3)
1. a kind of achieving automatic head replacement device of FDM printing devices, including the extrusion axle that can be moved along X-axis, Y-axis and Z-direction and solid
The achieving automatic head replacement device being scheduled in rack, the discharge end of the extrusion axle are equipped with discharge hole, and the discharge hole internal thread is connected with
Printhead, it is characterised in that the achieving automatic head replacement device includes printhead fixed seat, if being placed with the printhead fixed seat
Dry mounting hole, the gear shaft for passing through bearing and some intermeshing travelling gears in the mounting hole respectively are rotatablely connected, institute
State and driving motor be fixed with rack, driving gear is connected with the output shaft of the driving motor, the driving gear and its
In the engagement of travelling gear, the driving motor can forward or reverse movement realize rotating forward or anyway for each travelling gear
Rotate, the shaft end center of each travelling gear is equipped with the printhead transposition hole of regular polygon, and the printhead transposition hole is used for
Coordinate and place printhead, the periphery of the printhead lower part is equipped with the polygonal shape coordinated with printhead transposition interporal lacuna；Institute
The one of transposition hole in each printhead transposition hole for stating printhead fixed seat is used to dismantle and store in extrusion axle for room hole
Printhead, remaining each printhead transposition hole, which is used to coordinate, places printhead.
2. the achieving automatic head replacement device of FDM printing devices according to claim 1, it is characterised in that the printhead is fixed
It is used for the equidistant word arrangement of mounting hole for installing printhead in seat, a travelling gear is rotatablely connected respectively in each mounting hole,
Each travelling gear engages successively, and the gearratio of the driving gear and each travelling gear is 1：1.
3. the achieving automatic head replacement device of FDM printing devices according to claim 1, it is characterised in that the printhead is fixed
The length direction both sides of seat are respectively equipped with fire-bar, and the printhead transposition hole is along gear shaft axially through whole gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720609038.8U CN207273877U (en) | 2017-05-27 | 2017-05-27 | A kind of achieving automatic head replacement device of FDM printing devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720609038.8U CN207273877U (en) | 2017-05-27 | 2017-05-27 | A kind of achieving automatic head replacement device of FDM printing devices |
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| Publication Number | Publication Date |
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| CN207273877U true CN207273877U (en) | 2018-04-27 |
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| CN201720609038.8U Active CN207273877U (en) | 2017-05-27 | 2017-05-27 | A kind of achieving automatic head replacement device of FDM printing devices |
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| CN (1) | CN207273877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927992A (en) * | 2017-05-27 | 2018-12-04 | 宁夏共享模具有限公司 | A kind of achieving automatic head replacement device of FDM printing device |
-
2017
- 2017-05-27 CN CN201720609038.8U patent/CN207273877U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927992A (en) * | 2017-05-27 | 2018-12-04 | 宁夏共享模具有限公司 | A kind of achieving automatic head replacement device of FDM printing device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 750000 the Ningxia Hui Autonomous Region Yinchuan economic and Technological Development Zone ningshuo South Street No. 298 Patentee after: Shared Intelligent Equipment Co., Ltd. Address before: 750000 the Ningxia Hui Autonomous Region Yinchuan economic and Technological Development Zone ningshuo South Street No. 298 Patentee before: Ningxia Kocel Pattern Co., Ltd. |