CN209580492U - Tire 3D printing system - Google Patents
Tire 3D printing system Download PDFInfo
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- CN209580492U CN209580492U CN201920203151.5U CN201920203151U CN209580492U CN 209580492 U CN209580492 U CN 209580492U CN 201920203151 U CN201920203151 U CN 201920203151U CN 209580492 U CN209580492 U CN 209580492U
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Abstract
The tire 3D printing system and Method of printing of the utility model, including colloid screw injection unit, track synthesis unit and TRAJECTORY CONTROL unit；Track synthesis unit is mounted on the plastic emitting end side of colloid screw injection unit；TRAJECTORY CONTROL unit is used to control the kinematic parameter of colloid injection parameters and track synthesis unit；Colloid screw injection unit is in relative static conditions in print procedure, is responsible in the sectional casing slot that satisfactory colloid is at the uniform velocity ejected to cyclic annular tire base by regulation parameter.Above-mentioned print system and Method of printing have simple printing precision height, system control, glue spraying process stability height, glue spraying precision high；Rubber printing head rear portion is equipped with the thermoregulator to colloid temperature Secondary Control, is accurately controlled the colloid property such as viscosity of rubber；Track synthesis unit will move forward and backward, move up and down and rotary motion is combined together, and iteration is optimized in print procedure, ultimately form accurate print track.
Description
Technical field
The present invention relates to tire production technical fields, and in particular to a kind of tire 3D printing system.
Background technique
Currently, the rapid prototyping manufacturing (Rapid Prototyping Manufacturing) of referred to as 3D printing technique
It is rapidly developed in China and widely uses.Rapid prototyping manufacturing (RPM) seems that swallows pick mud to build their nest, and material is micro-
Grain is bonded in layer and forms product.Every layer of bonding is just like printing, and multi-layered bonded is just visually known as three-dimensional printing or 3D is beaten
Print.
According to forming method, RPM can be divided into for two classes.The first kind is the forming technique based on laser and other light sources, example
Such as: stereolithography apparatus SLA, the real manufacture LOM of layering, selecting domain laser powder sintering SLS, shaped deposition molding SDM.Second
Class is the molding skill technology based on injection, such as: fused glass pellet FDM, three dimensional printing 3DP, multiphase jet deposition MJD.Than
More mature rapid shaping technique has following several:
1, stereolithography apparatus method (Stereo lithography Appearance, SLA)
It is that the cured rapid shaping technique of layering selectivity is carried out to liquid photosensitive resin with stereo carving principle.
, layer separated growth (Laminated Object Manufacturing, LOM)
It is that geological information is layered according to part, sheeting laser under computer is superimposed solid modelling technique.
, Selective laser sintering (Selected Laser Sintering, SLS)
With laser to the quick shaping process of dusty material layering selective sintering.
, fused glass pellet (Fused Deposition Modeling, FDM)
It is that Filamentous thermoplastic material is heated fusing in spray head.Spray head is moved along part section profile and filling track,
The material of fusing is squeezed out simultaneously, material quick solidification, and is formed with the condensation of materials of surrounding.
, molded through three-dimensional printing (Three-Dimensional Printing, 3DP)
Be by spray head bonding agent (such as silica gel) by the section " printing " (bonding) of part on material powder.
, multi-layer spray deposition (multi-layer spray deposition, MD)
By spray head by rubber colloid being sprayed on mold in layer, utilize the cohesive force and colloidal deposition of rubber itself
Effect forms specific shape.
Above-mentioned multi-layer spray deposition (MD) has larger application prospect in rubber tyre production field, and application case is also got over
Come more, international tire giant such as company, Michelin and domestic some larger enterprises just increase input in the field, also produce
Some achievements are gone out, as the 3D printing pu tire technology of Shandong Linglong Tyre Co., Ltd., company, Michelin 3D are beaten
Honeycomb tire of print etc..
2 generations, Xiang Gaoxiao, energy conservation has been developed in rubber tyre production field in multi-layer spray deposition (MD) technology at present
Development trend it is more obvious.Multi-layer spray deposition (MD) technology is on the basis of preceding 2 generation at present, front end bound rubber be kneaded and
Mixing technology, rear end combine 3D printing technique, come into the MD2.5 epoch.
But above-mentioned technological achievement, which has no the printing of non-aerated rubber tyre, to be related to, due to the property of rubber tyre,
The case for carrying out 3D printing to rubber platform at present is considerably less, Chinese patent CN201610126970.5 " a kind of rubber composition, system
Preparation Method and its application in 3D printing air core tyre " application item of the rubber composition in 3D printing is mentioned, it is rubber
Tire 3D printing industrialized production provides a kind of resolving ideas.
Chinese patent application CN201610129153.5 " a kind of 3D printer for manufacturing hollow rubber tire " proposes one
Kind 3D tire printing solution, partially solves the problems, such as tire 3D printing, but since its structure is complicated, in particular for independent control
The motion profile of rubber printing head processed is simultaneously matched with the motion profile of side ring, and printing precision is difficult to ensure.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of tire 3D printing system,
The architecture printed from rubber raw materials to tire is realized, solves the problems, such as that non-aerated rubber tyre industrializes 3D printing.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: tire 3D printing system, including colloid injection are single
Member, track synthesis unit and TRAJECTORY CONTROL unit；Track synthesis unit is mounted on the plastic emitting end side of colloid injecting unit；Track control
Unit processed is used to control the kinematic parameter of colloid extrusion parameter and track synthesis unit；Colloid injecting unit is in print procedure
In relative static conditions, it is responsible at the uniform velocity for satisfactory colloid being ejected to the sectional casing slot of cyclic annular tire base by regulation parameter
In.
TRAJECTORY CONTROL unit is mounted in independent controller cabinet.
The resultant motion of front and back, up and down direction may be implemented in track synthesis unit, while realizing the rotation fortune of cyclic annular tire base
It is dynamic, then achieve the purpose that print tire.
TRAJECTORY CONTROL unit monitors the parameters and track synthesis unit kinematic parameter of colloid injecting unit in real time, and counts
Calculate the match parameter value of tire cross section any point.
The TRAJECTORY CONTROL unit includes controller module and sensor module, sensor module include temperature sensor,
Pressure sensor and colloid viscosity sensor；Temperature sensor, pressure sensor and colloid viscosity sensor are separately mounted to glue
While connecting on body injecting unit and with controller module；Controller module be located at colloid injecting unit and track synthesis unit it
Between；Temperature sensor, pressure sensor and colloid viscosity sensor are by the temperature of colloid injecting unit, pressure and colloid viscosity value
Real-time Transmission is to controller module.Controller module uses Siemens or Mitsubishi PLC, included to output and input interface, Ke Yifang
Being communicated with various sensors and display terminal just.
If controller module is typically chosen S7-200 series using SIEMENS PLC；If general to select using Mitsubishi PLC
Select FX2N series.
The electric signal of temperature sensor, pressure sensor and colloid viscosity sensor is generally first converted into analog signal transmission
To PLC, therefore need to be equipped with digiverter between PLC and above-mentioned each sensor.
Temperature sensor is using U.S. Omega HX94 series, technical parameter are as follows:
Input voltage range: 6 ~ 30Vdc(polarity protection)
Measurement range: 3 °C ~ 95 °C precision: ± 2%
Repeatability: ± 1%
Temperature-compensating: -20 ~ 85 °C (4 ~ 185 °F)
Electric current exports mA(0 ~ 100% of HX94C:4 ~ 20)
V(0 ~ 100% of voltage output HX94V:0 ~ 1.0)
Time constant: (in the air that flow velocity is 1m/sec, the time of 90% response is reached under 25 °C)
Less than 20 seconds: 10 ~ 90% RH
Less than 30 seconds: 90 ~ 10% RH
100 platinum RTD (DIN 43760) of temperature thin-film
Input voltage range: 6 ~ 30 Vdc (polarity protection)
Range: 0 100 °C of to (32 ~ 212 °F)
Precision: ± 0.6 °C (± 1 °F)
Repeatability: ± 0.3 °C (± 0.5 °F)
Electric current output: HX94C:0 ~ 100 °C are 4 ~ 20 mA
Voltage output: HX94V:0 ~ 100 °C are 0 ~ 1.0 V
Time constant: (60% response) is less than 2 seconds in mobile air (1m/sec), and 10 are less than in still air
Second.
Pressure sensor is using U.S. OmegaPX409 series, technical parameter are as follows:
0.08% BSL, including the linearity, hysteresis quality and repeatability；Temperature compensation range: -29 ~ 85 °C (- 20 ~
185°F)；Temperature performance span: being ± 0.5% in compensation range；It exports optional: mV/V；0 ~ 5 V or 0 ~ 10 V；4
~ 20 mA；It can trace to the source calibration containing 5 measurement point NIST；Across the digital dynamic thermal compensation of entire temperature and pressure range；Low pressure amount
Journey starts from 10 in-H2O；All steel liquid-contacting part；Response time is short；With solid state reliability and stability；It can measure gauge pressure
And absolute pressure；The proof pressure of minimum 300%.
Colloid viscosity sensor can be provided in line inspection based on the online immersion viscosity sensor of Nuo Keer SV-250
It surveys, without detachable part, is not influenced by flox condition, vibration.
The colloid injecting unit includes injection (mo(u)lding) machine, rubber printing head and thermoregulator；Thermoregulator peace
Between injection (mo(u)lding) machine and rubber printing head.
The outer wall of rubber printing head is made of multilayered structure, and internal layer is heat-conducting layer, heat-conducting layer and the bullet on the outside of it
Property insulating layer is in contact fixation, is outer wall on the outside of elastic heat preserving layer, the top of elastic heat preserving layer is provided with pressure conduction
Structure.The shape of the interior lumen of rubber printing head is back taper.
The track synthesis unit includes pedestal, is moved forward and backward component, moves up and down component and rotary components, the front and back
Moving assembly is mounted on the base, and is moved up and down component and is mounted on back-and-forth motion component, rotary components, which are mounted on, to be moved up and down
On component；Pedestal is monoblock type sinker, and bottom side is equipped with levelling device, relatively easy movement not only may be implemented, but also rise
To stable trajectory synthesis unit center of gravity, the effect for improving system stability, guaranteeing printing precision.
The back-and-forth motion component includes pallet, driving motor, horizontal smooth guideway and screw drive, driving electricity
Machine is fixed on the base, and horizontal smooth guideway is fixed on pedestal two sides；Screw drive one end is connected on driving motor,
The downside of pallet is equipped with the nut cooperated with the screw rod of screw drive；The moveable part of horizontal smooth guideway with
Pallet connection；
The component that moves up and down includes vertical motion driving motor, transmission turbine and worm pair, vertical smooth guide pair, top
Plate, bottom plate and guideway connecting elements, bottom plate are fixed on pallet, and vertical motion driving motor is fixed on bottom plate, are driven whirlpool
The lower end of worm couple is connected on vertical motion driving motor；Guideway connecting elements is symmetrically connected to vertical smooth guide
On secondary movable part；Top plate is fixed on the top of vertical smooth guide pair；It is outer for being driven the output shaft top of turbine and worm pair
Threaded rod；The internal screw thread seat with the output shaft cooperation of transmission turbine and worm pair is fixed in top side of the roof；
The rotary components include rotary driving motor, transmission shaft and cyclic annular tire base；Rotary driving motor is fixed on
On guideway connecting elements, cyclic annular tire base is mounted on the guideway connecting elements of the other side；Transmission shaft is also cross symmetrical peace
The guideway connecting elements of dress, the both ends of transmission shaft are connect with rotary driving motor and cyclic annular tire base respectively.
The lateral surface of the ring-type tire base is equipped with sectional casing slot, which includes cyclic annular side plate and cyclic annular substrate；
Cyclic annular side plate is mounted on the two sides of cyclic annular substrate, and is formed and the matched shape in side ring surface in tire to be printed with cyclic annular substrate.
Sectional casing slot can be customized according to the progress of the specific shape of tire, is not required to ring filling tire base together when disassembly tire base after the completion of printing
It disassembles.Cyclic annular tire base generally uses casting, and weight is big.Since ring dress tire base is connect with rotary driving motor, dismount
It is more time-consuming, it is relatively difficult；Cyclic annular tire base is configured as a large amount of, be easy to cause material waste, efficiency not can guarantee yet；Using
Sectional casing slot can effectively improve operating efficiency, reduce Material Cost.
The ring-type side plate is glued on cyclic annular substrate, and the inner ring surface of cyclic annular substrate is equipped with fixed keyway；The ring-type
Tire base is equipped in the connecting cavity formed with the above-mentioned fixed matched locating slot of keyway, fixed keyway and locating slot and fills in positioning
Block；The locating piece includes that front end is straight panel and rear end straight panel, and front end straight panel and rear end straight panel are arranged vertically；Front end straight panel is with after
Holding is step-shaped transition area between straight panel；Rear end straight panel is equipped with fixed circular hole；The outside of cyclic annular tire base is equipped with and fixed circular hole
Matched mounting hole.First glued good sectional casing slot is sleeved on cyclic annular tire base when installation, adjusts cyclic annular tire base and sectional casing
The phase of slot, it is ensured that fixed keyway and locating slot location matches；Then by locating piece fill in locating slot and fixed key-way shape at
In cavity, rear end straight panel is fixed on cyclic annular tire base by fixed circular hole and mounting hole using screw.
Above-mentioned step-shaped transition area is equipped with boss, and the cyclic annular tire base other side is equipped with ring-shaped baffle, above-mentioned boss and cyclic annular gear
Position-limiting action is played in plate cooperation, can limit axial movement of the sectional casing slot on cyclic annular tire base, the disassembly that not only can be convenient, but also
It can satisfy the requirement of tire printing precision.
It only needs to dismantle locating piece when replacing sectional casing slot, so that it may easily take sectional casing slot from cyclic annular tire base
Under.
The guideway connecting elements includes connecting cylinder and the connecting plate for being fixed on connecting cylinder both ends, be provided on connecting plate with
The matched through-hole of connecting cylinder inner hole.Connecting cylinder welds together with connecting plate.
The thermoregulator includes that shell, heating flat tube, glue-feeder and gum outlet, glue-feeder and gum outlet are located at
The both ends of shell, heating flat tube are fixed between glue-feeder and gum outlet.It heats and is equipped with resistive heater inside flat tube, heating electricity
It hinders silk to be introduced by the corresponding channel of shell, forms electric heating circuit.Shell is equipped with corresponding heater cable entrance.
The outer wall of rubber printing head is made of multilayered structure, and internal layer is heat-conducting layer, heat-conducting layer and the bullet on the outside of it
Property insulating layer is in contact fixation, is outer wall on the outside of elastic heat preserving layer, the top of elastic heat preserving layer is provided with pressure conduction knot
Structure.The inner surface of the pressure conduction structure is shiny surface, and the phase difference in inlet and exit is 50 °~65 °.Rubber printing spray
The shape of the interior lumen of head is back taper, and back taper is that upper end is connect with the exit of pressure conduction structure.
The horizontal interface of the heating flat tube is ellipse, and resistive heater is laid on the inner wall of the ellipse, heats flat tube
Tube wall 2mm~3mm, to improve heat transfer efficiency.Heating flat tube oval appearance can reduce the frictional resistance of colloid.It is heating
It is additionally provided with reinforcing rod between flat tube, prevents the excessive damage heating flat tube of pressure.In addition, the ellipsoidal structure of heating flat tube also has
Preferable compressive property.
Tire 3D printing method, comprising the following steps:
A. the current operating status of injection (mo(u)lding) machine: the temperature under current operating conditions described in detection injection (mo(u)lding) machine is determined
Value, rubber viscosity value and pressure value, when the pressure value, temperature value and rubber viscosity value meet the default testing conditions,
Controller automatically determines rubber printing head and initially sprays rate value；Enabling signal is transferred to colloid injecting unit by controller
Injection (mo(u)lding) machine, injection (mo(u)lding) machine starting, thermoregulator also brings into operation at this time.Thermoregulator is in controller according to temperature
After the feedback signal of sensor calculates, micro- heating, weight values heating or high level are carried out to rubber fluid and heated.Due in print procedure
Rubber flow cognition constantly takes away heat and the continuous dissipated heat of rubber printing head, needs at rubber printing head continuous
Additional heat guarantees that rubber fluid keeps desired mobility.
The initial rotation rate value and rail that rate value determines cyclic annular tire base are initially sprayed according to rubber printing head in step a
The initial motion rate value of mark synthesis unit；The initial motion rate value of track synthesis unit includes the rate of front-rear reciprocation movement
The rate value be worth, to pump.Wherein, front-rear reciprocation movement is switched by driving motor positive and negative rotation and is realized；Up and down reciprocatingly transport
Dynamic switched by vertical motion driving motor positive and negative rotation is realized.
First starting rotary driving motor rotates cyclic annular tire base under its initial rotation rate, then track synthesis unit
Starting；Make cyclic annular tire base reaches setting value at a distance from rubber printing head, and the starting of rubber printing head starts glue spraying；It is cyclic annular
The sectional casing slot of tire base at a distance from rubber printing head with the temperature of rubber fluid, the pressure in rubber printing head and rubber
The viscosity of fluid is positively correlated.
The starting of controller iterative program, continues to test pressure value, temperature value and the rubber viscosity value of injection (mo(u)lding) machine, and root
It is modified according to the glue spraying rate value of the pressure value, temperature value and rubber viscosity value to rubber printing head；The pressure value,
After temperature value and rubber viscosity value correct the glue spraying rate value of rubber printing head, the sectional casing slot and rubber of cyclic annular tire base are beaten
The distance of print spray head also can accordingly change.Injection (mo(u)lding) machine carries heating function, and the heating process to rubber is to add for the first time
Heat, thermoregulator carry out second to the rubber fluid that injection (mo(u)lding) machine is sent out and heat.Injection (mo(u)lding) machine selects Zhejiang Bai Na
The eighth generation extruder of rubber and plastic equipment Co., Ltd production.Injection (mo(u)lding) machine rear portion can also install rubber and begin to pratise machine, Ke Yishi
The automated production that existing refining glue, plastic squeeze and tire print.
Rotation according to glue spraying rate value revised in step d to the rate travel value of track synthesis unit and cyclic annular tire base
Rotational speed rate value is modified；
F. repeat step d and step e to tire printing completion.
Iterative program includes horizontal direction iterative formula and vertical direction iterative formula in the step d；
Wherein, horizontal direction iterative formula is
j=1,2,...,N；
The iterative formula of vertical direction is
j=1,2,...,N；
It combines horizontal direction iterative formula with vertical direction iterative formula, obtains following output matrix formula
,
Wherein, ii is line number, and jj is row number；For the print parameters value of corresponding points in tire end face.The parameter value includes ring
The speed of rotation of shape tire base, the rate of rubber printing head glue spraying and colloid temperature, track synthesis unit be moved forward and backward rate and
Move up and down rate.
After the completion of the step f, sectional casing slot is removed together with tire to curing operation；The sectional casing more renewed simultaneously
Slot is that printing is ready next time.Sectional casing slot is connected by screw bolts with cyclic annular tire base.Cyclic annular tire base is using integration casting
Technology production is made, to keep larger rotator inertia.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages:
1. printing precision is high, print track is only completed by track synthesis unit, and colloid injecting unit is in static shape always
State；Rubber printing head is in the endface of tire extreme higher position always when printing, reduces the complexity of system control；
2. fixed rubber printing head is used, it is convenient to be matched with other equipment such as injection (mo(u)lding) machine, simplify system spray
The structure of glue part improves the stability of glue spraying process, promotes glue spraying precision；
3. rubber printing head rear portion is equipped with the thermoregulator to colloid temperature Secondary Control, special to the colloid of rubber
Property such as viscosity accurately controlled, improve printing effect；
4. track synthesis unit can carry out movement in complicated various dimensions, fortune will be moved forward and backward, moves up and down and rotated
It is dynamic to be combined together, and iteration is optimized in print procedure, ultimately form accurate print track.
Detailed description of the invention
Technical scheme of the present invention is further explained with reference to the accompanying drawing:
Attached drawing 1 is the arragement construction schematic diagram of tire 3D printing system of the present invention；
Attached drawing 2 is the arragement construction schematic diagram of tire 3D printing system of the present invention;
Attached drawing 3 is track synthesis unit structural schematic diagram of the invention；
Attached drawing 4 is track synthesis unit structural schematic diagram of the invention;
Attached drawing 5 is rotary components configuration schematic diagram of the invention；
Attached drawing 6 is the structural schematic diagram of locating piece of the present invention；
Attached drawing 7 is the structural schematic diagram of sectional casing slot of the present invention；
Attached drawing 8 is the structural schematic diagram of the cyclic annular tire base of the present invention；
Attached drawing 9 is the structural schematic diagram of thermoregulator of the present invention；
Attached drawing 10 is the structural schematic diagram of present invention heating flat tube；
Attached drawing 11 is the shell mechanism schematic diagram of thermoregulator of the present invention.
In figure: 1, controller cabinet；2, controller module；3, track synthesis unit；4, colloid injecting unit；5, leveling dress
It sets；6, pedestal；7, driving motor；8, horizontal smooth guideway；9, rotary driving motor；10, top plate；11, output shaft；12,
Sectional casing slot；13, vertical motion driving motor；14, pallet；15, bottom plate；16, it is driven turbine and worm pair；17, smooth vertically to lead
Rail pair；18, screw drive；19, internal screw thread seat；20, transmission shaft；21, cyclic annular tire base；22, locating piece；23, front end straight panel；
24, boss；25, rear end straight panel；26, fixed circular hole；27, fixed keyway；28, cyclic annular side plate；29, cyclic annular substrate；30, cyclic annular gear
Plate；31, locating slot；32, mounting hole；33, flat tube is heated；34, shell；35, channel；36, gum outlet；37, rubber printing head；
38, reinforcing rod；39, heater cable entrance；40, glue-feeder；41, wire casing is connected；42, connecting plate；43, connecting cylinder.
Specific embodiment
The present invention is described in further detail combined with specific embodiments below.
A kind of tire 3D printing system as shown in Figure 1 to Figure 2, including colloid injecting unit 4,3 and of track synthesis unit
TRAJECTORY CONTROL unit；The controller cabinet 1 of TRAJECTORY CONTROL unit is synthesized by connection cables 43 with colloid injecting unit 4, track single
Member 3 connects.Controller module 2 is mounted on inside controller cabinet 1.
Track synthesis unit 3 is mounted on the plastic emitting end side of colloid injecting unit 4；TRAJECTORY CONTROL unit is squeezed for controlling colloid
The kinematic parameter of parameter and track synthesis unit 3 out；Colloid injecting unit 4 is in relative static conditions in print procedure,
It is responsible for for satisfactory colloid being at the uniform velocity ejected in sectional casing slot 12 by regulation parameter.
Colloid injecting unit 4 includes injection (mo(u)lding) machine, rubber printing head 37 and thermoregulator, to adapt to automatic metaplasia
It produces, may be equipped with rubber and begin to pratise the equipment such as machine.
The controller module of TRAJECTORY CONTROL unit is mounted in independent controller cabinet 1.
The resultant motion of front and back, up and down direction may be implemented in track synthesis unit 3, while realizing the rotation fortune of cyclic annular tire base
It is dynamic, then achieve the purpose that print tire.
TRAJECTORY CONTROL unit monitors 3 kinematic parameter of parameters and track synthesis unit of colloid injecting unit 4 in real time, and
Calculate the match parameter value of tire cross section any point.
TRAJECTORY CONTROL unit includes controller module 2 and sensor module, and sensor module includes temperature sensor, pressure
Sensor and colloid viscosity sensor；Temperature sensor, pressure sensor and colloid viscosity sensor are separately mounted to colloid note
It penetrates on unit 4 and while being connect with controller module 2.Temperature sensor, pressure sensor and colloid viscosity sensor pass through company
Wiring cable 43 is connect with controller module 2.
Position sensor, speed probe and linear velocity trans are installed on track synthesis unit 3；Speed probe and
Linear velocity trans be respectively intended to detection track synthesis unit 3 in the front-back direction movement velocity, up and down direction movement velocity and turn
Speed value；Position sensor is used to determine the opposite position with rubber printing head 37 of rotary components.
Controller module 2 is between colloid injecting unit 4 and track synthesis unit 3；Temperature sensor, pressure sensor
With colloid viscosity sensor by the temperature of colloid injecting unit, pressure and colloid viscosity value real-time Transmission to controller module 2.Control
Device module 2 processed uses Siemens or Mitsubishi PLC, included to output and input interface, it may be convenient to various sensors and display
Terminal is communicated.
If controller module 2 is typically chosen S7-200 series using SIEMENS PLC；If using Mitsubishi PLC, generally
Select FX2N series.
The electric signal of temperature sensor, pressure sensor and colloid viscosity sensor is generally first converted into analog signal transmission
To PLC, therefore need to be equipped with digiverter between PLC and above-mentioned each sensor.
Temperature sensor is using U.S. Omega HX94 series, technical parameter are as follows:
Input voltage range: 6 ~ 30Vdc(polarity protection)
Measurement range: 3 °C ~ 95 °C precision: ± 2%
Repeatability: ± 1%
Temperature-compensating: -20 ~ 85 °C (4 ~ 185 °F)
Electric current exports mA(0 ~ 100% of HX94C:4 ~ 20)
V(0 ~ 100% of voltage output HX94V:0 ~ 1.0)
Time constant: (in the air that flow velocity is 1m/sec, the time of 90% response is reached under 25 °C)
Less than 20 seconds: 10 ~ 90% RH
Less than 30 seconds: 90 ~ 10% RH
100 platinum RTD (DIN 43760) of temperature thin-film
Input voltage range: 6 ~ 30 Vdc (polarity protection)
Range: 0 100 °C of to (32 ~ 212 °F)
Precision: ± 0.6 °C (± 1 °F)
Repeatability: ± 0.3 °C (± 0.5 °F)
Electric current output: HX94C:0 ~ 100 °C are 4 ~ 20 mA
Voltage output: HX94V:0 ~ 100 °C are 0 ~ 1.0 V
Time constant: (60% response) is less than 2 seconds in mobile air (1m/sec), and 10 are less than in still air
Second.
Pressure sensor is using U.S. OmegaPX409 series, technical parameter are as follows:
0.08% BSL, including the linearity, hysteresis quality and repeatability；Temperature compensation range: -29 ~ 85 °C (- 20 ~
185°F)；Temperature performance span: being ± 0.5% in compensation range；It exports optional: mV/V；0 ~ 5 V or 0 ~ 10 V；4
~ 20 mA；It can trace to the source calibration containing 5 measurement point NIST；Across the digital dynamic thermal compensation of entire temperature and pressure range；Low pressure amount
Journey starts from 10 in-H2O；All steel liquid-contacting part；Response time is short；With solid state reliability and stability；It can measure gauge pressure
And absolute pressure；The proof pressure of minimum 300%.
Colloid viscosity sensor can be provided in line inspection based on the online immersion viscosity sensor of Nuo Keer SV-250
It surveys, without detachable part, is not influenced by flox condition, vibration.
Colloid injecting unit 4 includes injection (mo(u)lding) machine, rubber printing head 37 and thermoregulator；Thermoregulator installation
Between injection (mo(u)lding) machine and rubber printing head 37.
Thermoregulator includes shell 34, heating flat tube 33, glue-feeder 40 and gum outlet 36；Glue-feeder 40 and gum outlet 36
The both ends of shell are located at, and there are 90 ° of phase differences.
Heating flat tube 33 is fixed between glue-feeder 40 and gum outlet 36.It heats and is equipped with resistive heater inside flat tube 33,
Resistive heater is introduced by the corresponding channel 35 of shell 34, forms electric heating circuit.Resistive heater is close to heating flat tube 33
Inner wall laying；By the way of embedded, resistive heater is fitted into the groove of heating 33 inner surface of flat tube, and in resistance wire and
It heats and is equipped with heat-insulating layer between flat tube 33.Shell 34 is equipped with corresponding heater cable entrance 39.Heater cable one end
It is connect with resistive heater, the other end is connect with controller cabinet 1.
It is furnished with heating power supply on controller cabinet 1.Controller module 2 controls the opening and closing of heating power supply, realizes heating
The energization and power-off of resistance wire.
The outer wall of rubber printing head 37 is made of multilayered structure, and internal layer is heat-conducting layer, heat-conducting layer and its on the outside of
Elastic heat preserving layer is in contact fixation, is outer wall on the outside of elastic heat preserving layer, and the top of elastic heat preserving layer is provided with pressure and passes
Guide structure.The shape of the interior lumen of rubber printing head 37 is back taper.
As shown in Fig. 3 to Figure 11, track synthesis unit 3 includes pedestal 6, is moved forward and backward component, moves up and down component and rotation
Turn component, is moved forward and backward component front-rear reciprocation movement under the control of controller module 2, forms tire axis direction to be printed
It moves back and forth.
It moves up and down component to pump under the control of controller module 2, forms the past of tire radial direction to be printed
Multiple movement.
Rotary components at the uniform velocity rotate under the control of controller module 2, form the circumferential movement of tire to be printed.
It is moved forward and backward component to be mounted on pedestal 6, moves up and down component and be mounted on back-and-forth motion component, rotary components peace
Mounted in moving up and down on component, front and back, upper and lower and rotation compound motion are formed.
Pedestal 6 is monoblock type sinker, and bottom side is equipped with levelling device 5, relatively easy movement not only may be implemented, but also
Play the role of 3 center of gravity of stable trajectory synthesis unit, improves system stability, guarantees printing precision.
Being moved forward and backward component includes pallet 14, driving motor 7, horizontal smooth guideway 8 and screw drive 18, driving
Motor 7 is fixed on pedestal 6, and horizontal smooth guideway 8 is fixed on 6 two sides of pedestal；18 one end of screw drive is connected to drive
On dynamic motor 7, the downside of pallet 14 is equipped with the nut cooperated with the screw rod of screw drive 18；Horizontal smooth guideway
8 moveable part is connect with pallet 14；Screw drive 18 includes screw rod and support base, and support base is fixed on pedestal 6
End, screw rod pass through nut and are mounted on support base.Screw rod is connect with support base by bearing.Horizontal smooth guideway 8 includes
Straight smooth guide rail and movable sliding block.
Move up and down component include vertical motion driving motor 13, transmission turbine and worm pair 16, vertical smooth guide pair 17,
Top plate 10, bottom plate 15 and guideway connecting elements, bottom plate 15 are fixed on pallet 14, and vertical motion driving motor 13 is fixed on bottom
On plate 15, the lower end of transmission turbine and worm pair 16 is connected on vertical motion driving motor 13；Guideway connecting elements is symmetrical
It is connected on the movable part of vertical smooth guide pair 17；Top plate 10 is fixed on the top of vertical smooth guide pair 17；It is driven whirlpool
The output shaft top of worm couple 16 is external thread rod；The output with transmission turbine and worm pair 16 is fixed on 10 downside of top plate
The internal screw thread seat of axis cooperation；Being driven turbine and worm pair 16 includes turbine and long worm screw, available very big transmission ratio, than staggeredly
Axis helical teeth wheel mechanism is compact, contacts between two-wheeled mesh tooth face for line, is equivalent to worm drive, is driven for multi-tooth meshing, therefore is driven
Steadily, noise very little, has self-locking performance, and high transmission accuracy is very suitable to the 3D printing of tire.
Rotary components include rotary driving motor 9, transmission shaft 20 and cyclic annular tire base 21；Rotary driving motor 9 is fixed
On guideway connecting elements, cyclic annular tire base 21 is mounted on the guideway connecting elements of the other side；Transmission shaft 20 also cross
The guideway connecting elements being symmetrically installed, the both ends of transmission shaft 20 are connect with rotary driving motor 9 and cyclic annular tire base 21 respectively.
Guideway connecting elements includes the two pieces of connecting plates 42 and connecting cylinder 43 being arranged symmetrically, and connecting cylinder 43 is welded on two connecting plates 42
Between.
The lateral surface of cyclic annular tire base 21 is equipped with sectional casing slot 12, which includes cyclic annular side plate 28 and cyclic group
Plate 29；Cyclic annular side plate 28 is mounted on the two sides of cyclic annular substrate 29, and is formed and side ring surface in tire to be printed with cyclic annular substrate 29
Matched shape.Sectional casing slot 12 can be customized according to the progress of the specific shape of tire, is not required to when disassembly tire base after the completion of printing
Ring dress tire base 21 is disassembled together.
Cyclic annular tire base 21 generally uses casting, and weight is big.Since ring dress tire base 21 is connect with rotary driving motor 9,
Dismount it is time-consuming and laborious, it is relatively difficult；Cyclic annular tire base 21 is configured as a large amount of, be easy to cause material waste, efficiency not can guarantee yet；It adopts
With sectional casing slot 12, producing in serial form mode can be formed, the configuration quantity of cyclic annular tire base 21 can be largely reduced, effectively improve work
Industry efficiency reduces Material Cost.
Cyclic annular side plate 28 is glued on cyclic annular substrate 29, and the inner ring surface of cyclic annular substrate 29 is equipped with fixed keyway 27；It is cyclic annular
Tire base 21 is equipped in the connecting cavity formed with the matched locating slot 31 of above-mentioned fixed keyway 27, fixed keyway 27 and locating slot 31
Fill in locating piece 22.
Locating piece 22 includes that front end is straight panel 23 and rear end straight panel 25, and front end straight panel 23 and rear end straight panel 25 are arranged vertically；
It is step-shaped transition area between front end straight panel 23 and rear end straight panel 25；Step-shaped transition area is used for fixed Combination tire slot 12, prevents
12 axial motion of sectional casing slot.
Rear end straight panel 25 is equipped with fixed circular hole 26；The outside of cyclic annular tire base 21 is equipped with and the fixed matched installation of circular hole 26
Hole 32.First glued good sectional casing slot 12 is sleeved on cyclic annular tire base 21 when installation, adjusts cyclic annular tire base 21 and sectional casing slot
12 phase, it is ensured that fixed keyway 27 and 31 location matches of locating slot；Then locating piece 22 is filled in into locating slot 31 and retainingf key
In the cavity that slot 27 is formed, rear end straight panel is fixed on by cyclic annular tire base 21 by fixed circular hole 26 and mounting hole 32 using screw
On.
Above-mentioned step-shaped transition area is equipped with boss 24, and cyclic annular 21 other side of tire base is equipped with ring-shaped baffle 30, above-mentioned boss 24
Position-limiting action is played with the cooperation of ring-shaped baffle 30, axial movement of the sectional casing slot 12 on cyclic annular tire base 21 can be limited, both may be used
Easily to dismantle, and it can satisfy the requirement of tire printing precision.
It only needs to dismantle locating piece 22 when replacing sectional casing slot 12, so that it may easily by sectional casing slot 12 and printed
Tire removed from cyclic annular tire base 21 together.Then new sectional casing slot 12 is changed, so that it may be printed next time.
Guideway connecting elements includes connecting cylinder 43 and the connecting plate 42 for being fixed on 43 both ends of connecting cylinder, is opened on connecting plate 42
Have and the matched through-hole of 43 inner hole of connecting cylinder.Connecting cylinder 43 welds together with connecting plate 42.
The outer wall of rubber printing head 37 is made of multilayered structure, and internal layer is heat-conducting layer, heat-conducting layer and its on the outside of
Elastic heat preserving layer is in contact fixation, is outer wall on the outside of elastic heat preserving layer, the top of elastic heat preserving layer is provided with pressure conduction
Structure.The inner surface of the pressure conduction structure is shiny surface, and the phase difference in inlet and exit is 50 °~65 °.Rubber printing
The shape of the interior lumen of spray head 37 is back taper, and back taper is that upper end is connect with the exit of pressure conduction structure.
The horizontal interface for heating flat tube 33 is ellipse, lays resistive heater on the inner wall of the ellipse, heats flat tube
Tube wall 2mm~3mm, to improve heat transfer efficiency.Heating flat tube oval appearance can reduce the frictional resistance of colloid.It is flat heating
It is additionally provided with reinforcing rod 38 between pipe, prevent the excessive damage heating flat tube 33 of pressure or causes to heat the deformation of flat tube 33.In addition, heating
The ellipsoidal structure of flat tube 33 also has preferable compressive property.
Tire 3D printing method, comprising the following steps:
A. the current operating status of injection (mo(u)lding) machine: the temperature under current operating conditions described in detection injection (mo(u)lding) machine is determined
Value, rubber viscosity value and pressure value, when the pressure value, temperature value and rubber viscosity value meet the default testing conditions,
Controller automatically determines rubber printing head 37 and initially sprays rate value；Enabling signal is transferred to colloid injecting unit by controller
4 injection (mo(u)lding) machine, injection (mo(u)lding) machine starting, thermoregulator also brings into operation at this time.Thermoregulator controller according to
After the feedback signal of temperature sensor calculates, micro- heating, weight values heating or high level are carried out to rubber fluid and heated.Due to printing
Rubber flow cognition constantly takes away heat and the continuous dissipated heat of rubber printing head in journey, needs at rubber printing head
Heat is continuously replenished, guarantees that rubber fluid keeps desired mobility.
The initial rotation rate value that rate value determines cyclic annular tire base 21 is initially sprayed according to rubber printing head 37 in step a
With the initial motion rate value of track synthesis unit 3；The initial motion rate value of track synthesis unit 3 includes front-rear reciprocation movement
Rate value, the rate value that pumps.Wherein, front-rear reciprocation movement is switched by 7 positive and negative rotation of driving motor and is realized；Up and down
It moves back and forth to be switched by 17 positive and negative rotation of vertical motion driving motor and realize.
First starting rotary driving motor 9 rotates cyclic annular tire base 21 under its initial rotation rate, and then track synthesizes
Unit 3 starts；Make cyclic annular tire base 21 reaches setting value at a distance from rubber printing head 37, and the starting of rubber printing head 37 is opened
Beginning glue spraying；The sectional casing slot 12 of cyclic annular tire base 21 prints at a distance from rubber printing head 37 with the temperature of rubber fluid, rubber
The viscosity of pressure and rubber fluid in spray head is positively correlated.
The starting of controller module iterative program, continues to test pressure value, temperature value and the rubber viscosity value of injection (mo(u)lding) machine,
And it is modified according to the glue spraying rate value of the pressure value, temperature value and rubber viscosity value to rubber printing head 37；Pressure
After value, temperature value and rubber viscosity value are to the glue spraying rate value amendment of rubber printing head, the sectional casing slot 12 of cyclic annular tire base with
The distance of rubber printing head 37 also can accordingly change.Injection (mo(u)lding) machine carries heating function, and the heating process to rubber is
It heats for the first time, thermoregulator carries out second to the rubber fluid that injection (mo(u)lding) machine is sent out and heats.Injection (mo(u)lding) machine selection
The eighth generation extruder of Zhejiang Baina Rubber Plastic Equipment Co., Ltd.'s production.Injection (mo(u)lding) machine rear portion can also install rubber and begin to pratise
The automated production of refining glue, plastic squeeze and tire printing may be implemented in machine.
Rate travel value and cyclic annular tire base 21 according to glue spraying rate value revised in step d to track synthesis unit
Speed of rotation value is modified；
F. repeat step d and step e to tire printing completion.
Iterative program includes horizontal direction iterative formula and vertical direction iterative formula in the step d；
Wherein, horizontal direction iterative formula is
j=1,2,...,N；
The iterative formula of vertical direction is
j=1,2,...,N；
It combines horizontal direction iterative formula with vertical direction iterative formula, obtains following output matrix formula
,
Wherein, ii is line number, and jj is row number；For the print parameters value of corresponding points in tire end face.The parameter value includes ring
The speed of rotation of shape tire base 21, the rate of 37 glue spraying of rubber printing head and colloid temperature, track synthesis unit 3 are moved forward and backward speed
Rate and move up and down rate.
After the completion of the step f, sectional casing slot 12 is removed together with tire to curing operation；The combination more renewed simultaneously
Tire slot 12 is that printing is ready next time.Sectional casing slot 12 and cyclic annular tire base 21 are connected using bolt or key connection.Cyclic annular tire
Base 21 is using integrated foundry engieering production, to keep larger rotator inertia.
The above is only specific application examples of the invention, are not limited in any way to protection scope of the present invention.All uses
Equivalent transformation or equivalent replacement and the technical solution formed, all fall within rights protection scope of the present invention.
Claims (7)
1. tire 3D printing system, it is characterised in that: including colloid injecting unit, track synthesis unit and TRAJECTORY CONTROL unit；
Track synthesis unit is mounted on the plastic emitting end side of colloid injecting unit；TRAJECTORY CONTROL unit is for controlling colloid extrusion parameter and rail
The kinematic parameter of mark synthesis unit；
The TRAJECTORY CONTROL unit includes controller module and sensor module, and sensor module includes temperature sensor, pressure
Sensor and colloid viscosity sensor；Temperature sensor, pressure sensor and colloid viscosity sensor are separately mounted to colloid note
It penetrates on unit and while being connect with controller module；Controller module is between colloid injecting unit and track synthesis unit；
The colloid injecting unit includes injection (mo(u)lding) machine, rubber printing head and thermoregulator；Thermoregulator is mounted on
Between injection (mo(u)lding) machine and rubber printing head.
2. tire 3D printing system according to claim 1, it is characterised in that: the track synthesis unit includes pedestal, preceding
Afterwards moving assembly, move up and down component and rotary components, the back-and-forth motion component is mounted on the base, move up and down component peace
Mounted in being moved forward and backward on component, rotary components, which are mounted on, to be moved up and down on component；
The back-and-forth motion component includes that pallet, driving motor, horizontal smooth guideway and screw drive, driving motor are solid
It is scheduled on pedestal, horizontal smooth guideway is fixed on pedestal two sides；Screw drive one end is connected on driving motor, pallet
Downside be equipped with the nut cooperated with the screw rod of screw drive；The moveable part and pallet of horizontal smooth guideway
Connection；
It is described move up and down component include vertical motion driving motor, transmission turbine and worm secondary, vertical smooth guide pair, top plate,
Bottom plate and guideway connecting elements, bottom plate are fixed on pallet, and vertical motion driving motor is fixed on bottom plate, are driven turbine snail
The lower end of bar pair is connected on vertical motion driving motor；Guideway connecting elements is symmetrically connected to vertical smooth guide pair
On movable part；Top plate is fixed on the top of vertical smooth guide pair；The output shaft top for being driven turbine and worm pair is external screw thread
Bar；The internal screw thread seat with the output shaft cooperation of transmission turbine and worm pair is fixed in top side of the roof；
The rotary components include rotary driving motor, transmission shaft and cyclic annular tire base；Rotary driving motor is fixed on guide rail
On secondary connecting elements, cyclic annular tire base is mounted on the guideway connecting elements of the other side；Transmission shaft is also cross being symmetrically installed
Guideway connecting elements, the both ends of transmission shaft are connect with rotary driving motor and cyclic annular tire base respectively.
3. tire 3D printing system according to claim 2, it is characterised in that: the lateral surface of the ring-type tire base is equipped with group
Tire slot is closed, which includes cyclic annular side plate and cyclic annular substrate；Cyclic annular side plate is mounted on the two sides of cyclic annular substrate, and with ring-type
Substrate is formed and the matched shape of tire inside cross-sectional to be printed.
4. tire 3D printing system according to claim 3, it is characterised in that: the ring-type side plate is glued at cyclic annular substrate
On, the inner ring surface of cyclic annular substrate is equipped with fixed keyway；The ring-type tire base is equipped with and the above-mentioned fixed matched positioning of keyway
Locating piece is filled in the connecting cavity of slot, fixed keyway and locating slot composition；The locating piece includes that front end is that straight panel and rear end are straight
Plate, front end straight panel and rear end straight panel are arranged vertically；It is step-shaped transition area between front end straight panel and rear end straight panel；In the straight panel of rear end
Equipped with fixed circular hole；The outside of cyclic annular tire base is equipped with and the fixed matched mounting hole of circular hole.
5. tire 3D printing system according to claim 2, it is characterised in that: the guideway connecting elements includes connecting cylinder
With the connecting plate for being fixed on connecting cylinder both ends, it is provided with and the matched through-hole of connecting cylinder inner hole on connecting plate.
6. tire 3D printing system according to claim 1, it is characterised in that: the thermoregulator includes shell, heating
Flat tube, glue-feeder and gum outlet, glue-feeder and gum outlet are located at the both ends of shell, and heating flat tube is fixed on glue-feeder and goes out
Between glue mouth.
7. tire 3D printing system according to claim 6, it is characterised in that: the horizontal interface of the heating flat tube is ellipse
Shape lays resistive heater on the inner wall of the ellipse.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920203151.5U CN209580492U (en) | 2019-02-16 | 2019-02-16 | Tire 3D printing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920203151.5U CN209580492U (en) | 2019-02-16 | 2019-02-16 | Tire 3D printing system |
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| Publication Number | Publication Date |
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| CN209580492U true CN209580492U (en) | 2019-11-05 |
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ID=68355242
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648849A (en) * | 2019-02-16 | 2019-04-19 | 江苏江昕轮胎有限公司 | Tire 3D printing system and Method of printing |
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2019
- 2019-02-16 CN CN201920203151.5U patent/CN209580492U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648849A (en) * | 2019-02-16 | 2019-04-19 | 江苏江昕轮胎有限公司 | Tire 3D printing system and Method of printing |
| CN109648849B (en) * | 2019-02-16 | 2023-10-27 | 江苏江昕轮胎有限公司 | Tire 3D printing system and printing method |
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Address after: 221000 No.1 Jiangxin Road, Binhe Industrial Park, Yitang Town, Pizhou City, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Jiangxin Technology Co.,Ltd. Address before: 221000 No.1 Jiangxin Road, Binhe Industrial Park, Yitang Town, Pizhou City, Xuzhou City, Jiangsu Province Patentee before: JIANGSU RISINGSUN TYRE Co.,Ltd. |