A kind of 3D printing consumptive material waste material extruder
Technical field
The present invention relates to 3D printing field more particularly to a kind of 3D printing consumptive material waste material extruders.
Background technique
Currently, the design and research of 3D printer is promoted constantly, 3D printing with the fast development of 3D printing technique
The cost of machine is also constantly reducing.3D printer is gradually popular, and has spread in the research of every field.School, reality
The various departments relevant to designing and manufacturing such as room, factory are tested to start largely to use 3D printer, be product design and quickly
Forming provides a great convenience, and scientific and technical innovation is further strengthened.Can 3D printer equally bring serious waste and environment
Pollution.In the design process, scheme can not accomplish in one move, and generally require each modification and perfect, components are continuous
During improved, printing again again and again is needed.Moreover most of 3D printer is possible to bottom surface occur when processing
The problems such as warpage, slight crack, deformation, leads to part rejection.In the print procedure of part, need for the preparatory printed substrates of product or branch
Support, these substrates and being supported in print procedure play a supportive role, particularly significant to product shaping, can be after completing the process just
Become piles and piles of waste material.One project of every completion, the amount of waste of generation may be more than output, these wastes are tangible
It should not be underestimated.In addition, if these waste recovery are improper, it will cause immeasurable harm to environment, pollution capacity is remote
More than white garbage.Big lump waste materials are difficult to degrade, and fine particle is then possible to be eaten by mistake by animal, causes damages to its life.So
It is imperative that recycling and reusing is carried out to 3D printing consumptive material waste material.
Further investigation reveals that having had already appeared the recyclable device of several 3D printing consumptive material waste materials on the market, still, 3D is being used
The place of printer is not equipped with this recyclable device.Tracing it to its cause mainly has the following: 1. is expensive, and a 3D is beaten
The recyclable device price of consumptive material waste material is printed probably at 2~10 times of a 3D printer.3D printing is used for school, family etc.
The general place of machine can be with sustainable supply many years if the fund for buying recyclable device is used to buy consumptive material;2. outer dimension
Excessive, although partially recycled device has accomplished desktop grade, its size is also still at 3~6 times of 3D printer.It does not only take up
Great space, and need to carry out water cooling, use is extremely onerous;3. consumptive material, after heating for multiple times, property can change, beat
The product printed off intensity and in terms of can have a greatly reduced quality, cause printed product quality decline.
In conclusion manufacture and design it is a it is simple, conveniently, economical and practical, function admirable, the waste recovery that can be widely popularized
Device has been extremely urgent.
Summary of the invention
Object of the present invention is to solve the above problems, the 3D printing consumption that one kind is efficient, reasonable, light, can be widely popularized is provided
Material waste material extruder.
To achieve the goals above, the technical scheme is that
A kind of 3D printing consumptive material waste material extruder, including goods charging bucket, goods charging bucket bottom end are provided with heating device;The 3D printing consumption
Material waste material extruder further includes pressurizing unit, transmission device, power device;Pressurizing unit is located above heating device and goods charging bucket
Bottom end is connected with pressurizing unit side wall, and pressurizing unit upper end is sequentially connected by transmission device and power device;The heating
Device includes heating cavity, and heating cavity bottom end is provided in discharge port and heating cavity and is provided with heating rod;The extruding dress
It sets including extrusion chamber, extruding screw;Extrusion chamber is located at heating cavity upper end and extrusion chamber bottom end and heating cavity top
It is connected, extrusion chamber is connect in the hollow cylindrical and its inner sidewall of upper and lower both ends open with extruding screw crest clearance, is squeezed
Pressure screw rod is in the helical form being rotated down and connect on the outside of the upper end with extrusion chamber upper end bearing, extrusion chamber side wall and material containing
Bucket bottom end is connected;Transmission device includes the first angular wheel, the second angular wheel;First angular wheel and extruding screw upper end
It is fixedly connected and the first angular wheel engages connection with the second angular wheel, the second angular wheel is connect with power device;It is described
Power device includes bottom plate, bracket, stepper motor, shaft coupling;Bracket bottom end is fixed on bottom plate upper end and bracket and stepper motor
The connection of shell bearing, side face are provided with the first fixed plate, and the second fixed plate is fixedly connected on stepper motor shell, and first is solid
Fixed board is corresponding with the second fixed Board position and pressure sensor is connected between the first fixed plate and the second fixed plate, stepping electricity
Machine is connect by shaft coupling with the second angular wheel.
Further, the shaft coupling includes connector, circular gear, spring;Connector includes first connecting portion, second
Interconnecting piece, third interconnecting piece;First connecting portion, second connecting portion, third interconnecting piece are integrally formed and its center is provided with
The connection through-hole of longitudinal through-connections, the output shaft for connecting through-hole and stepper motor are connected together;First connecting portion, second connect
Socket part, third interconnecting piece are cylindrical and second connecting portion outside is provided with the first connecting column, and circular gear is socketed in second
It is provided with the second connecting column on the outside of interconnecting piece and in the middle part of circular gear, the first connecting column is connect with the second connecting column by spring;
First connecting portion, third interconnecting piece outboard bearing connect the first connection ring, the second connection ring, the first connection ring, the second connection ring,
Circular gear side be provided with position it is corresponding on the outside of through-hole and by being bolted through through-hole, circular gear with
The engagement connection of second angular wheel internal diameter.
Further, first connecting column, the second connecting column are three.
Further, thermocouple is connected in the heating cavity.
Further, the tapered shape of the goods charging bucket.
Compared with prior art, the advantages and positive effects of the present invention are:
3D printing consumptive material waste material extruder designed by the present invention can be directly used cooperatively with 3D printer, efficiently reduce consumptive material
Heating times, increase the service performance of material, ensure that its quality printed again, reduce recycling 3D printing waste material work
Sequence reduces cost recovery;And the two makes 3D printer both after combining and finished product silk consumptive material completion high quality can be used
The corresponding utilization that waste material extruder completes waste material also can be used in processing;Its is compact-sized, replacement is convenient, low in cost, can be wide
General Rapid Popularization uses;On the other hand, shaft coupling of the invention is set using second connecting portion, circular gear by what spring connected
Structure is counted, shaft coupling is allowed to adjust the dynamic of power device accordingly according to force-bearing situation of the extruding screw in pressing materials
Power transmission, ensure that the uniform extrusion of material;And it utilizes the motor housing when motor works that can generate the spy of reaction force
Point installs pressure sensor additional between motor and bracket, thus detect the stress size and torque size of extruding screw, root
According to these data, people can be adjusted motor speed by setting control program, guarantee extruded material uniform bubble-free,
Promote quality when waste material prints again.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the connection structure diagram of stepper motor and shaft coupling;
Fig. 3 is the structural schematic diagram of connector;
Fig. 4 is the structural schematic diagram of circular gear;
Fig. 5 is the connection structure diagram of connector and circular gear;
Fig. 6 is the overlooking structure figure of shaft coupling.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
As shown in Figures 1 to 6,3D printing consumptive material waste material extruder of the invention, the goods charging bucket 1 including cone-shaped, material containing
1 bottom end of struggling against is provided with heating device;The 3D printing consumptive material waste material extruder further includes pressurizing unit, transmission device, power dress
It sets;Pressurizing unit is located above heating device and 1 bottom end of goods charging bucket is connected with pressurizing unit side wall, and pressurizing unit upper end passes through
Transmission device and power device are sequentially connected;The heating device includes heating cavity 6, and 6 bottom end of heating cavity is provided with discharging
Heating rod, thermocouple are provided in mouth 7 and heating cavity 6;The design of thermocouple allows people at any time in heating cavity 6
Temperature be monitored, facilitate and the working condition in heating cavity 6 understood;The pressurizing unit includes extrusion chamber
5, extruding screw 4;Extrusion chamber 5 is located at 6 upper end of heating cavity and 5 bottom end of extrusion chamber and is connected with 6 top of heating cavity, squeezes
Pressure cavity 5 is connect in the hollow cylindrical and its inner sidewall of upper and lower both ends open with 4 crest clearance of extruding screw, extruding screw 4
It is connect on the outside of the helical form being rotated down and the upper end with 5 upper end bearing of extrusion chamber, 5 side wall of extrusion chamber and goods charging bucket 1
Bottom end is connected;Transmission device includes the first angular wheel 3, the second angular wheel 2;On first angular wheel 3 and extruding screw 4
End is fixedly connected and the first angular wheel 3 engages connection with the second angular wheel 2, and the second angular wheel 2 is connect with power device;
The power device includes bottom plate 9, bracket 8, stepper motor 12, shaft coupling;8 bottom end of bracket is fixed on 9 upper end of bottom plate and bracket 8
It is connect with 12 shell bearing of stepper motor, 8 side of bracket is provided with the first fixed plate 10, is fixedly connected on 12 shell of stepper motor
Second fixed plate 11, the first fixed plate 10 is corresponding with 11 position of the second fixed plate and the first fixed plate 10 and the second fixed plate 11
Between be connected with pressure sensor, stepper motor 12 is connect by shaft coupling with the second angular wheel 2.
The present invention at work, printing waste material is put into goods charging bucket, when waste material slide-down is to extruding screw position by squeezing
The continual downward pushing of screw rod is pressed, waste material becomes molten state in heating cavity, and a part goes out from heating cavity bottom end
Material mouth squeezes out, and bubble is discharged in rolling to another part upwards under pressure, finally guarantees the consumptive material squeezed out not bubbles.
3D printing consumptive material waste material extruder designed by the present invention can be directly used cooperatively with 3D printer, be efficiently reduced
The heating times of consumptive material increase the service performance of material, ensure that its quality printed again, reduce recycling 3D printing waste material
Process, reduce cost recovery;And the two makes 3D printer both after combining and finished product silk consumptive material completion height can be used
The corresponding utilization that waste material extruder completes waste material also can be used in quality processing;Its is compact-sized, replacement is convenient, low in cost,
It Rapid Popularization can use extensively;On the other hand, the present invention utilizes the motor housing when motor works that can generate the spy of reaction force
Point installs pressure sensor additional between motor and bracket, whereby it can be detected that the stress size of extruding screw and torque are big
Small, according to these data, people can be adjusted motor speed by setting control program, guarantee the uniform nothing of extruded material
Bubble promotes quality when waste material prints again.
The shaft coupling includes connector, circular gear 18, spring 21;Connector includes that first connecting portion 13, second connects
Socket part 14, third interconnecting piece 15;First connecting portion 13, second connecting portion 14, third interconnecting piece 15 is integrally formed and its centre bit
The connection through-hole 16 for being equipped with longitudinal through-connections is installed, through-hole 16 is connected and the output shaft of stepper motor 12 is connected together;The
One interconnecting piece 13, second connecting portion 14, third interconnecting piece 15 be cylindrical and second connecting portion 14 on the outside of be provided with the first company
Column 17 is connect, circular gear 18 is socketed in the middle part of 14 outside of second connecting portion and circular gear 18 and is provided with the second connecting column 19, the
One connecting column, the second connecting column are three, and the first connecting column 17 is connect with the second connecting column 19 by spring 21;First connection
Portion 13,15 outboard bearing of third interconnecting piece connect the first connection ring 23, the second connection ring 24, the connection of the first connection ring 23, second
Ring 24,18 side of circular gear are provided with that position is corresponding to be connected through through-hole 20 and by bolt 22, circular gear 18
Connection is engaged with 2 internal diameter of the second angular wheel in outside.
The present invention is using the design structure that second connecting portion, circular gear are connected by spring in shaft coupling, so that shaft coupling
Device can adjust the power transmission of power device accordingly according to force-bearing situation of the extruding screw in pressing materials, when internal object
When material becomes more, extruding screw stress is big, internal pressure is high, and spring is compressed at this time, has slowed down extruding screw transmission, has reduced its pressure
Power;When materials inside tails off, extruding screw stress is small, internal pressure is small, it is likely that will appear fracture of wire phenomenon, spring returns at this time
Multiple original state accelerates screw rod rotation, increases internal extrusion pressure, accelerates material downlink;To ensure that the uniform of material squeezes
Out.