CN208068881U - A kind of automatic adjustment clamping force and wire feeder - Google Patents
A kind of automatic adjustment clamping force and wire feeder Download PDFInfo
- Publication number
- CN208068881U CN208068881U CN201820326462.6U CN201820326462U CN208068881U CN 208068881 U CN208068881 U CN 208068881U CN 201820326462 U CN201820326462 U CN 201820326462U CN 208068881 U CN208068881 U CN 208068881U
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- China
- Prior art keywords
- wire feed
- feed rolls
- driven
- driving gear
- gear
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Abstract
A kind of automatic adjustment clamping force and wire feeder, triangle swing-bar mechanism including two an equal amount of cylindrical wire feed rolls, a pair of of size identical external gear pump and connecting rod composition, drive identical two external gear pumps of size that the identical cylindrical wire feed rolls of two sizes is driven to rotate synchronously using motor, centre-to-centre spacing that can be between two wire feed rolls of adjust automatically when silk diameter change realizes that silk thread clamps and clamping force substantially constant.Clamping force size is determined by the swing part quality and its axial dimension of triangle swing-bar mechanism.This device is adjusted without special clamping force and locking device, and the automatic silk thread for adapting to different-diameter is sent into and clamps, and has simple in structure, is conveniently adjusted and advantage easy to maintain.
Description
Technical field
The utility model belongs to 3D printing technique field, is related to a kind of automatic adjustment clamping force and wire feeder, is used for real
The silk that wire feed process in existing fusion sediment method 3D printing technique adapts to different-diameter is clamped and is continuously fed to.
Background technology
Fusion sediment manufacturing process is way of realization more mature in 3D printing technique, and wire feeder therein is that its is heavy
The component part wanted is related to the continuity and consistency of process.Existing wire feeder type is more, but there are one
A little different degrees of defects, in a kind of silk extrusion device of 3D printer as disclosed in CN204309267U, using manual hand
Handle adjustment spring mode, driving gear are connected to driving motor, and driven gear connection driving gear is simultaneously connected with flexible handle,
Flexible handle one end is movably connected on pedestal, other end connecting spring, spring lateral connection pedestal.For another example CN203876233U
In the 3D scanning and printing device feed mechanisms of disclosed FDM a kind of, the material silk that motor output end is fixed with material silk inlet and outlet is led
Enter block, material silk imports the adjusting lever end grafting wire feed movable block installed in the cavity that block is equipped with, wire feed movable block and material silk
Compressed spring is fixed between the spring lock block of importing block side installation, material silk imports block side and is fixed on holder.It is lacked jointly
Point is：Giving for different-diameter silk cannot be adapted to automatically；Mechanism is more complex；It cannot be guaranteed that clamping force is constant.
It is molten for realizing in order to solve the deficiencies in the prior art, a kind of automatic adjustment clamping force of spy's proposition and wire feeder
The automatic silk for adapting to different-diameter is clamped and is continuously fed to during wire feed in thaw collapse area method 3D printing technique, and retaining clip
Clamp force is constant.
Invention content
A kind of automatic adjustment clamping force of the utility model offer and wire feeder realize that 3D printer passes through wire feed rolls feeding
When utilized according to the difference of silk diameter wire feed rolls from recanalization spacing.
The technical solution that the utility model is taken is as follows：
A kind of automatic adjustment clamping force and wire feeder, including a triangle mechanism, triangle mechanism is by holder 1, main
Dynamic wire feed rolls 2, driven wire feed rolls 3, driving gear 4, driven gear 5, connecting rod 6, supporting block 7, link block 8 form；Active wire feed
Wheel 2 and driven wire feed rolls 3 are identical a pair of of the exterior circular column of diameter；Driving gear 4 is that a pair of of size is identical with driven gear 5
External gear pump；Active wire feed rolls 2 and driving gear 4 are coaxially connected, and driven wire feed rolls 3 and driven gear 5 are coaxially connected；Connection
Block 8 is fixed on holder 1, and 6 one end of connecting rod is hinged with link block 8, and the other end and driven gear 5 of connecting rod 6 are hinged, supporting block 7
It is fixed on the bottom end rail of holder 1, driving gear 4 and 5 external toothing of driven gear；2 radius of active wire feed rolls, driven wire feed rolls 3
The sum of radius and silk thread minimum diameter three are identical as the centre-to-centre spacing of driving gear 4 and driven gear 5；4 one end of driving gear with
Supporting block 7 is hinged, and the other end is hinged with active wire feed rolls 2 so that driving gear 4 is fixed with 2 position of active wire feed rolls, silk 9
It is given by active wire feed rolls 2 and driven wire feed rolls 3.
The driving gear 4 is fixedly connected on motor shaft, and motor is fixed on holder 1, and motor drives 4 turns of driving gear
It is dynamic, driving gear 4 and 5 engagement rotation of driven gear.
The utility model is used as power source using servo motor, will be from the synchronous rotation of external gear pump realization wire feed
The dead weight component of moving gear as clamping force, gap between driven wire feed rolls and active wire feed rolls with the diameter change of silk and
Variation has many advantages, such as that simple in structure, reliable clamping and wire feed are continuous without other additional mechanisms and device.With higher
Engineering practical value.
Description of the drawings
A kind of front views of automatic adjustment clamping force and wire feeder of Fig. 1.
A kind of rearviews of automatic adjustment clamping force and wire feeder of Fig. 2.
A kind of lateral views of automatic adjustment clamping force and wire feeder of Fig. 3.
Specific implementation mode
The implementation process of the utility model is described below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2 and Fig. 3, a kind of automatic adjustment clamping force and wire feeder, including a triangle mechanism, triangle
Mechanism is by holder 1, active wire feed rolls 2, driven wire feed rolls 3, driving gear 4, driven gear 5, connecting rod 6, supporting block 7, link block 8
Composition；Active wire feed rolls 2 and driving gear 4 are coaxially connected, and driven wire feed rolls 3 and driven gear 5 are coaxially connected；Link block 8 is solid
It is scheduled on holder 1,6 one end of connecting rod is hinged with link block 8, and the other end of connecting rod 6 is hinged with driven gear 5, and supporting block 7 is fixed on
On the bottom end rail of holder 1, driving gear 4 and 5 external toothing of driven gear；2 radius of active wire feed rolls, 3 radius of driven wire feed rolls and
The sum of silk thread minimum diameter three is identical as the centre-to-centre spacing of driving gear 4 and driven gear 5；4 one end of driving gear and supporting block 7
Hinged, the other end is hinged with active wire feed rolls 2 so that driving gear 4 is fixed with 2 position of active wire feed rolls, and silk 9 passes through actively
Wire feed rolls 2 is given with driven wire feed rolls 3.
Three vertex in this triangle mechanism are followed successively by the center of driving gear 4, the center of driven gear 5 and connecting rod 6
Oscillation center；The center of driving gear 4 and the oscillation center of connecting rod 6 are fixed with respect to rack, and the center of driving gear 4, from
The distance between center of moving gear 5 is gear centre away from gear centre changes away from the variation with wire diameter.Due to
When wire diameter minimum, gear centre is away from for standard value, and two standards for gears engage at this time.When wire diameter becomes larger, in gear
For the heart away from increase, two gears are non-standard engagement, since wire diameter variation range is smaller, gear centre away from variation gear is nibbled
Conjunction state influence is smaller, can ignore.
A kind of course of work of automatic adjustment clamping force and wire feeder：
Motor driven belts are moved driving gear 4 and are driven, and driving gear 4 drives active wire feed rolls 2 to rotate, driving gear 4 with from
5 external toothing of moving gear makes driven gear 5 rotate backward, and driven gear 5 drives driven wire feed rolls 3 to rotate, and passes through active wire feed rolls 2
The frictional force between silk 9 is rotated backward with 3 phase of driven wire feed rolls to give silk 9.When the change of 9 diameter of silk is small, from
Dynamic wire feed rolls 3 keeps driving gear 4 and the meshing point of driven gear 5 close to driving gear 4 by dead weight so that driven wire feed rolls
3 move to active wire feed rolls 2, are clamped to silk 9, and due to being triangle mechanism, driving gear 4 is engaged with driven gear 5
Point height position is not up to the level between the central point of active wire feed rolls 2 and 6 one end of connecting rod and the hinged central point of link block 8
Highly；When silk 9 is thicker, since silk 9 is to the squeezing action of driven wire feed rolls 3, driving gear 4 is engaged with driven gear 5
Point deviates driving gear 4 so that driven wire feed rolls 3 deviates active wire feed rolls 2, and is clamped to the silk 9 that diameter becomes larger.When
When there is no the supply of silk 9 so that the area of triangle mechanism is minimum, i.e., when highly dropping to extreme position, then being fed next time,
By the variation of 9 diameter of silk, driven wire feed rolls 3 is squeezed, and relies on the dead weight of driven wire feed rolls 3 and driven gear 5,
Silk is clamped again.Since in adjustment process, the amplitude of silk diameter change is very small, thus active wire feed rolls 2 with
Driven wire feed rolls 3 detaches and is had no effect on during normal the engaging of driving gear 4 and 5 external toothing of driven gear.
A kind of operation principle of automatic adjustment clamping force and wire feeder：
External gear pump identical with a pair of of size is fixedly and coaxially connected the identical cylindrical wire feed rolls of a pair of of size respectively,
Gear is by motor drag, i.e. two wire feed rolls reverse sync under motor drag rotates, and silk thread is clamped in the outer of two wire feed rolls
Between cylindrical surface.The wire feed rolls being connect with driven gear is swung relative to rack, and the wire feed rolls external cylindrical surface of swing is sent with another
Variable between the external cylindrical surface of silk wheel, when gap variation is smaller, two wire feed rolls are basically unchanged silk thread normal pressure.
This pressure size depends on the axial length of the wire feed rolls and coaxial mounted gear quality and its swing rod that swing.
Claims (2)
1. a kind of automatic adjustment clamping force and wire feeder, it is characterized in that including a triangle mechanism, triangle mechanism is by propping up
Frame（1）, active wire feed rolls（2）, driven wire feed rolls（3）, driving gear（4）, driven gear（5）, connecting rod（6）, supporting block（7）,
Link block（8）Composition；Active wire feed rolls（2）With driven wire feed rolls（3）For identical a pair of of the exterior circular column of diameter；Driving gear
（4）And driven gear（5）For the identical external gear pump of a pair of of size；Active wire feed rolls（2）With driving gear（4）Coaxially connect
It connects, driven wire feed rolls（3）With driven gear（5）It is coaxially connected；Link block（8）It is fixed on holder（1）On, connecting rod（6）One end with
Link block（8）It is hinged, connecting rod（6）The other end and driven gear（5）It is hinged, supporting block（7）It is fixed on holder（1）Bottom end rail
On, driving gear（4）With driven gear（5）External toothing；Active wire feed rolls（2）Radius, driven wire feed rolls（3）Radius and silk thread are most
The sum of minor diameter three and driving gear（4）And driven gear（5）Centre-to-centre spacing it is identical；Driving gear（4）One end and supporting block
（7）It is hinged, the other end and active wire feed rolls（2）It is hinged so that driving gear（4）With active wire feed rolls（2）Position is fixed, silk
（9）Pass through active wire feed rolls（2）With driven wire feed rolls（3）It is given.
2. a kind of automatic adjustment clamping force according to claim 1 and wire feeder, it is characterised in that：The driving gear
（4）It is fixedly connected on motor shaft, motor is fixed on holder（1）On, motor drives driving gear（4）Rotation, driving gear（4）
With driven gear（5）Engagement rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820326462.6U CN208068881U (en) | 2018-03-09 | 2018-03-09 | A kind of automatic adjustment clamping force and wire feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820326462.6U CN208068881U (en) | 2018-03-09 | 2018-03-09 | A kind of automatic adjustment clamping force and wire feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208068881U true CN208068881U (en) | 2018-11-09 |
Family
ID=64038942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820326462.6U Expired - Fee Related CN208068881U (en) | 2018-03-09 | 2018-03-09 | A kind of automatic adjustment clamping force and wire feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208068881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454092A (en) * | 2018-03-09 | 2018-08-28 | 陕西理工大学 | Automatically adjust clamping force and wire feeder |
| CN114103116A (en) * | 2021-11-12 | 2022-03-01 | 广东顺德优线三维科技有限公司 | Consumable connecting device for FDM type 3D printer |
-
2018
- 2018-03-09 CN CN201820326462.6U patent/CN208068881U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454092A (en) * | 2018-03-09 | 2018-08-28 | 陕西理工大学 | Automatically adjust clamping force and wire feeder |
| CN108454092B (en) * | 2018-03-09 | 2023-09-01 | 陕西理工大学 | Automatic clamping force adjusting and wire feeding device |
| CN114103116A (en) * | 2021-11-12 | 2022-03-01 | 广东顺德优线三维科技有限公司 | Consumable connecting device for FDM type 3D printer |
| CN114103116B (en) * | 2021-11-12 | 2023-01-06 | 广东顺德优线三维科技有限公司 | Consumable connecting device for FDM type 3D printer |
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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 |
Granted publication date: 20181109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |