CN104527080A - Method for manufacturing wood plastic sheet layered entity component based on ultrasonic welding - Google Patents
Method for manufacturing wood plastic sheet layered entity component based on ultrasonic welding Download PDFInfo
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- CN104527080A CN104527080A CN201410718486.2A CN201410718486A CN104527080A CN 104527080 A CN104527080 A CN 104527080A CN 201410718486 A CN201410718486 A CN 201410718486A CN 104527080 A CN104527080 A CN 104527080A
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Abstract
The invention relates to a method for manufacturing a wood plastic sheet layered entity component based on ultrasonic welding. The invention relates to a rapid moulding technology for manufacturing layered entity, and concretely relates to the method for manufacturing the wood plastic sheet layered entity component based on ultrasonic welding. The method solves the problems that patternless manufacturing of large-scale complex parts (models) can be difficultly realized by a traditional manufacturing process and the thickness of the current wood plastic material is large. The method comprises the following steps: uniformly mixing dried wood powder, polyethylene plastic and other auxiliary agents according to proportion by a high-speed feed mixer, extruding through a double stage plastic extruding machine, directly calendering the extruding molten state material without cooling through a ZS-406E electric vulcanizing machine to sheets, then using a laser cutting machine for cutting to an assigned shape according to a CAD driving model, and finally using an ultrasonic welding machine for welding the wood plastic sheets layer by layer according to a rapid moulding mechanism of a three-dimensional model.
Description
Technical field
The present invention relates to a kind of technique of rapid shaping of layer separated growth, be specifically related to the manufacture method that thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding.
Background technology
Wood plastic composite is a kind of advanced composite material (ACM) that string and high molecular polymer Compound Machining are made.This novel material combines the double dominant of lignocellulosic material and polymeric material, have the advantages that mechanical property is good, table mushroom hardness is high, thermal expansion is excellent, water-fast, wear-resisting, play the processing method diversity of the workability of timber and plastics, flexibility, source is wide, cost has been low.
Ultrasonic bonding utilizes hyperacoustic higher-order of oscillation butt-welding fitting joint to carry out local heat and removing surface, then applies the method that pressure realizes welding.Ultrasonic bonding does not need external heat source, has not by the constraint of weldability, does not have the features such as gas, liquid pollution, can connect of the same race or dissimilar metal, semiconductor, plastics etc., be widely used in the connection area of engineering plastics at present.
Layer separated growth technology is called for short LOM technology, superposes shaping from level to level by raw material, is a kind of comparatively ripe rapid shaping technique.With this fabrication techniques part (model), there is no complicated machine cut processing, the precision of model can be ensured, greatly can shorten again the molding time, reduce molding expense, more outstanding for large-scale, complex-shaped model advantage.
Layer separated growth technology is embodied in the improvement to layer separated growth technology raw material and method, conventional method uses melt viscosity splicing to realize Layered manufacturing, there are some drawbacks in manufacturing process, want shaping large complicated technique part (model) comparatively difficulty, the thickness of paper and the performance etc. of PUR all can have an impact to the performance of product, and existing Wood-plastic material thickness is generally 4mm ~ 12mm, thickness is larger.
Summary of the invention
The present invention is that the conventional fabrication processes in order to solve wood plastic composite is difficult to realize the Non-mould shaping of large complicated technique part (model) and the larger problem of existing Wood-plastic material thickness, and provides a kind of wood based on ultrasonic bonding to mould the manufacture method of thin slice laminated solid body component.
The manufacture method that thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding that the present invention is is carried out according to the following steps:
One, take 45 ~ 55 parts of wood powders of drying, 40 ~ 50 parts of polyethylene, 1 ~ 3 part of maleic anhydride grafted polyethylene and 1 ~ 3 part of PE wax by mass fraction, then mix through high speed mixer, obtain wood plastic composite blend composition;
Two, wood plastic composite blend composition step one obtained is put into two rank plastic extruder and is extruded, and obtains molten condition wood plastic composite;
Three, molten condition wood plastic composite step 2 obtained, finger gauge auxiliary under, obtain wood by calendering of colding pressing after the first hot pressing of hot press and mould thin slice, sheet thickness is 0.5mm ~ 0.8mm;
Four, according to the shape design three-dimensional data model of required practical work piece, then be STL formatted file by data transformations, again stl file is imported computer, drive according to three-dimensional CAD model, wood step 3 obtained by laser high-speed cutting machine is moulded thin slice and is cut into the shape of specifying, and thin slice moulded by the wood obtaining excision forming;
Thin slice moulded by the wood of the excision forming five, step 4 obtained, and utilizes the ultrasonic welding machine higher-order of oscillation to add up layer by layer welding, obtains wood and mould thin slice laminated solid body component; Described welding parameter is: sending out the time of shaking is 0.5s ~ 1.5s, and vibration frequency is 15kHz ~ 20kHz, and time delay is 1s ~ 3s, and hardening time is 0.5s ~ 1.5s, and acting on solder side pressure at right angle is 145N ~ 155N, and cylinder pressure is 0.4MPa ~ 0.6MPa.
Beneficial effect of the present invention:
The present invention proposes a kind of layer separated growth process utilizing ultrasonic wave layering welding wood to mould slice forming, the market applicable cases of the feature of layer separated growth, the advantage of ultrasonic bonding and current Wood-plastic material combines by it, both some drawbacks of traditional handicraft had been overcome, solve again the difficult problem that large complicated technique part (model) manufactures, realize the Non-mould shaping of large complicated part simultaneously.
Ultrasonic welding machine of the present invention is made up of supersonic generator, transducer, supersonic generator produces has the high-frequency electrical of certain power stage to vibrate, the vibration of this high-frequency electrical is converted to mechanical energy by transducer, instrument end face is made to make dither through ultrasonic transformer, being exerted pressure by cylinder is loaded on wood plastics composite thin slice by this dither, can make its interface melting and bond.
Layer separated growth technology and ultrasonic welding technique combine and mould thin slice to wood and carry out the welding of point laminates by the present invention; can not only protective material body not contaminated; do not produce the waste pollution such as welding slag, sewage, pernicious gas; also large complicated mould or part can comparatively fast be produced; efficiency is high; wood plastic composite thickness is only 0.5mm ~ 0.8mm; about 80% ~ 95% is reduced than existing Wood-plastic material thickness; and the raw material safety and environmental protection selected, source is wide, cost is low; without the need to following process, simple possible.
Detailed description of the invention
Detailed description of the invention one: the manufacture method that thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding of present embodiment is carried out according to the following steps:
One, take 45 ~ 55 parts of wood powders of drying, 40 ~ 50 parts of polyethylene, 1 ~ 3 part of maleic anhydride grafted polyethylene and 1 ~ 3 part of PE wax by mass fraction, then mix through high speed mixer, obtain wood plastic composite blend composition;
Two, wood plastic composite blend composition step one obtained is put into two rank plastic extruder and is extruded, and obtains molten condition wood plastic composite;
Three, molten condition wood plastic composite step 2 obtained, finger gauge auxiliary under, obtain wood by calendering of colding pressing after the first hot pressing of hot press and mould thin slice, sheet thickness is 0.5mm ~ 0.8mm;
Four, according to the shape design three-dimensional data model of required practical work piece, then be STL formatted file by data transformations, again stl file is imported computer, drive according to three-dimensional CAD model, wood step 3 obtained by laser high-speed cutting machine is moulded thin slice and is cut into the shape of specifying, and thin slice moulded by the wood obtaining excision forming;
Thin slice moulded by the wood of the excision forming five, step 4 obtained, and utilizes the ultrasonic welding machine higher-order of oscillation to add up layer by layer welding, obtains wood and mould thin slice laminated solid body component; Described welding parameter is: sending out the time of shaking is 0.5s ~ 1.5s, and vibration frequency is 15kHz ~ 20kHz, and time delay is 1s ~ 3s, and hardening time is 0.5s ~ 1.5s, and acting on solder side pressure at right angle is 145N ~ 155N, and cylinder pressure is 0.4MPa ~ 0.6MPa.
Present embodiment proposes a kind of layer separated growth process utilizing ultrasonic wave layering welding wood to mould slice forming, the market applicable cases of the feature of layer separated growth, the advantage of ultrasonic bonding and current Wood-plastic material combines by it, both some drawbacks of traditional handicraft had been overcome, solve again the difficult problem that large complicated technique part (model) manufactures, realize the Non-mould shaping of large complicated part simultaneously.
Present embodiment ultrasonic welding machine is made up of supersonic generator, transducer, supersonic generator produces has the high-frequency electrical of certain power stage to vibrate, the vibration of this high-frequency electrical is converted to mechanical energy by transducer, instrument end face is made to make dither through ultrasonic transformer, being exerted pressure by cylinder is loaded on wood plastics composite thin slice by this dither, can make its interface melting and bond.
Layer separated growth technology and ultrasonic welding technique combine by present embodiment moulds thin slice to wood and carries out the welding of point laminates; can not only protective material body not contaminated; do not produce the waste pollution such as welding slag, sewage, pernicious gas; also large complicated mould or part can comparatively fast be produced; efficiency is high; wood plastic composite thickness is only 0.5mm ~ 0.8mm; about 80% ~ 95% is reduced than existing Wood-plastic material thickness; and the raw material safety and environmental protection selected, source is wide, cost is low; without the need to following process, simple possible.
Detailed description of the invention two: present embodiment and detailed description of the invention one unlike: take 50 parts of wood powders of drying, 46 parts of polyethylene, 2 parts of maleic anhydride grafted polyethylenes and 2 parts of PE waxes by mass fraction in step one, then mix.Other steps and parameter identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment and detailed description of the invention one or two unlike: the parameter mixed through high speed mixer described in step one is: rotating speed is 300r/min ~ 480r/min.Other steps and parameter identical with detailed description of the invention one or two.
Detailed description of the invention four: present embodiment and one of detailed description of the invention one to three unlike: the parameter mixed through high speed mixer described in step one is: rotating speed is 360r/min.Other steps and parameter identical with one of detailed description of the invention one to three.
Detailed description of the invention five: one of present embodiment and detailed description of the invention one to four unlike: the parameter extruded through two rank plastic extruder described in step 2 is: extruding each district temperature is 150 ~ 190 DEG C, extruded velocity is 250mm/min ~ 300mm/min, extrusion pressure is 6MPa ~ 7MPa, screw speed is 30r/min ~ 50r/min, and rate of feeding is 8r/min ~ 12r/min.Other steps and parameter identical with one of detailed description of the invention one to four.
Detailed description of the invention six: one of present embodiment and detailed description of the invention one to five unlike: the parameter extruded through two rank plastic extruder described in step 2 is: extrude district 1 ~ 8 district's temperature and be respectively 160 DEG C, 165 DEG C, 170 DEG C, 175 DEG C, 175 DEG C, 170 DEG C, 165 DEG C and 155 DEG C.Other steps and parameter identical with one of detailed description of the invention one to five.
Detailed description of the invention seven: one of present embodiment and detailed description of the invention one to six unlike: the parameter extruded through two rank plastic extruder described in step 2 is: extruded velocity is 270mm/min, extrusion pressure is 6.5MPa, screw speed is 35r/min, and rate of feeding is 10r/min.Other steps and parameter identical with one of detailed description of the invention one to six.
Detailed description of the invention eight: one of present embodiment and detailed description of the invention one to seven unlike: in step 3 by the parameter of hot press hot pressing be: temperature is 160 ~ 180 DEG C, pressure is 10MPa ~ 15MPa, and the time is 1min ~ 4min.Other steps and parameter identical with one of detailed description of the invention one to seven.
Detailed description of the invention nine: one of present embodiment and detailed description of the invention one to eight unlike: in step 3 by the parameter of hot press hot pressing be: temperature is 165 DEG C, pressure is 12MPa, and the time is 3min.Other steps and parameter identical with one of detailed description of the invention one to eight.
Detailed description of the invention ten: one of present embodiment and detailed description of the invention one to nine unlike: in step 3 by hot press parameter of colding pressing be: temperature is 25 ~ 45 DEG C, and pressure is 5MPa ~ 10MPa, and the time is 1min ~ 3min.Other steps and parameter identical with one of detailed description of the invention one to nine.
Detailed description of the invention 11: one of present embodiment and detailed description of the invention one to ten unlike: in step 3 by hot press parameter of colding pressing be: temperature is 35 DEG C, and pressure is 6MPa, and the time is 2min.Other steps and parameter identical with one of detailed description of the invention one to ten.
Detailed description of the invention 12: one of present embodiment and detailed description of the invention one to ten one unlike: the welding parameter described in step 5 is: send out the time of shaking be 1.0s, vibration frequency is 15kHz, time delay is 2s, hardening time is 1.0s, acting on solder side pressure at right angle is 150N, and cylinder pressure is 0.5MPa.Other steps and parameter identical with one of detailed description of the invention one to ten one.
With following verification experimental verification beneficial effect of the present invention:
Test one: the manufacture method that thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding of this test is carried out according to the following steps:
One, take 50 parts of wood powders of drying, 46 parts of polyethylene, 2 parts of maleic anhydride grafted polyethylenes and 2 parts of PE waxes by mass fraction, then mix through high speed mixer, obtain wood plastic composite blend composition;
Two, wood plastic composite blend composition step one obtained is put into two rank plastic extruder and is extruded, and obtains molten condition wood plastic composite;
Three, molten condition wood plastic composite step 2 obtained, finger gauge auxiliary under, obtain wood by calendering of colding pressing after the first hot pressing of hot press and mould thin slice, sheet thickness is 0.6mm;
Four, according to the shape design three-dimensional data model of required practical work piece, then be STL formatted file by data transformations, again stl file is imported computer, drive according to three-dimensional CAD model, wood step 3 obtained by laser high-speed cutting machine is moulded thin slice and is cut into the shape of specifying, and thin slice moulded by the wood obtaining excision forming;
Thin slice moulded by the wood of the excision forming five, step 4 obtained, and utilizes the ultrasonic welding machine higher-order of oscillation to add up layer by layer welding, obtains wood and mould thin slice laminated solid body component; Described welding parameter is: sending out the time of shaking is 1.0s, and vibration frequency is 15kHz, and time delay is 2s, and hardening time is 1.0s, and acting on solder side pressure at right angle is 150N cylinder pressure: 0.5MPa.
The parameter mixed through high speed mixer described in step one is: rotating speed is 360r/min.
The parameter that warp two rank plastic extruder described in step 2 is extruded is: extrude 1 ~ 8 district's temperature and be respectively 160 DEG C, 165 DEG C, 170 DEG C, 175 DEG C, 175 DEG C, 170 DEG C, 165 DEG C, 155 DEG C, extruded velocity is 270mm/min, extrusion pressure is 6.5MPa, screw speed is 35r/min, and rate of feeding is 10r/min.
Be: temperature upper and lower plates is 165 DEG C that pressure is 12MPa by the parameter of hot press hot pressing in step 3, the time is 3min.
In step 3 by hot press parameter of colding pressing be: temperature is 35 DEG C, and pressure is 6MPa, and the time is 2min.
The dimensions that thin slice moulded by the wood of the excision forming obtained in step 4 is: 300mm × 200mm.
This test proposes a kind of layer separated growth process utilizing ultrasonic wave layering welding wood to mould slice forming, the market applicable cases of the feature of layer separated growth, the advantage of ultrasonic bonding and current Wood-plastic material combines by it, both some drawbacks of traditional handicraft had been overcome, solve again the difficult problem that large complicated technique part (model) manufactures, realize the Non-mould shaping of large complicated part simultaneously.
This test ultrasonic welding machine is made up of supersonic generator, transducer, supersonic generator produces has the high-frequency electrical of certain power stage to vibrate, the vibration of this high-frequency electrical is converted to mechanical energy by transducer, instrument end face is made to make dither through ultrasonic transformer, being exerted pressure by cylinder is loaded on wood plastics composite thin slice by this dither, can make its interface melting and bond.
Layer separated growth technology and ultrasonic welding technique combine by this test moulds thin slice to wood and carries out the welding of point laminates; can not only protective material body not contaminated; do not produce the waste pollution such as welding slag, sewage, pernicious gas; also large complicated mould or part can comparatively fast be produced; efficiency is high; wood plastic composite thickness is only 0.5mm ~ 0.8mm; about 80% ~ 95% is reduced than existing Wood-plastic material thickness; and the raw material safety and environmental protection selected, source is wide, cost is low; without the need to following process, simple possible.
Claims (10)
1. mould a manufacture method for thin slice laminated solid body component based on the wood of ultrasonic bonding, it is characterized in that the manufacture method that thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding is carried out according to the following steps:
One, take 45 ~ 55 parts of wood powders of drying, 40 ~ 50 parts of polyethylene, 1 ~ 3 part of maleic anhydride grafted polyethylene and 1 ~ 3 part of PE wax by mass fraction, then mix through high speed mixer, obtain wood plastic composite blend composition;
Two, wood plastic composite blend composition step one obtained is put into two rank plastic extruder and is extruded, and obtains molten condition wood plastic composite;
Three, molten condition wood plastic composite step 2 obtained, finger gauge auxiliary under, obtain wood by calendering of colding pressing after the first hot pressing of hot press and mould thin slice, sheet thickness is 0.5mm ~ 0.8mm;
Four, according to the shape design three-dimensional data model of required practical work piece, then be STL formatted file by data transformations, again stl file is imported computer, drive according to three-dimensional CAD model, wood step 3 obtained by laser high-speed cutting machine is moulded thin slice and is cut into the shape of specifying, and thin slice moulded by the wood obtaining excision forming;
Thin slice moulded by the wood of the excision forming five, step 4 obtained, and utilizes the ultrasonic welding machine higher-order of oscillation to add up layer by layer welding, obtains wood and mould thin slice laminated solid body component; Described welding parameter is: sending out the time of shaking is 0.5s ~ 1.5s, and vibration frequency is 15kHz ~ 20kHz, and time delay is 1s ~ 3s, and hardening time is 0.5s ~ 1.5s, and acting on solder side pressure at right angle is 145N ~ 155N, and cylinder pressure is 0.4MPa ~ 0.6MPa.
2. the manufacture method of thin slice moulded by a kind of wood of the layering based on ultrasonic bonding according to claim 1, it is characterized in that taking 50 parts of wood powders of drying, 46 parts of polyethylene, 2 parts of maleic anhydride grafted polyethylenes and 2 parts of PE waxes by mass fraction in step one, then mix.
3. the manufacture method of thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding according to claim 1, it is characterized in that the parameter mixed through high speed mixer described in step one is: rotating speed is 300r/min ~ 480r/min.
4. the manufacture method of thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding according to claim 1, it is characterized in that the parameter that the warp two rank plastic extruder described in step 2 is extruded is: extruding each district temperature is 150 ~ 190 DEG C, extruded velocity is 250mm/min ~ 300mm/min, extrusion pressure is 6MPa ~ 7MPa, screw speed is 30r/min ~ 50r/min, and rate of feeding is 8r/min ~ 12r/min.
5. the manufacture method of thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding according to claim 4, it is characterized in that the parameter that the warp two rank plastic extruder described in step 2 is extruded is: extrude district 1 ~ 8 district's temperature and be respectively 160 DEG C, 165 DEG C, 170 DEG C, 175 DEG C, 175 DEG C, 170 DEG C, 165 DEG C and 155 DEG C.
6. the manufacture method of thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding according to claim 1, it is characterized in that in step 3 by the parameter of hot press hot pressing be: temperature is 160 ~ 180 DEG C, pressure is 10MPa ~ 15MPa, and the time is 1min ~ 4min.
7. the manufacture method of thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding according to claim 1, it is characterized in that in step 3 by the parameter of hot press hot pressing being: temperature is 165 DEG C, and pressure is 12MPa, and the time is 3min.
8. the manufacture method of thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding according to claim 1, it is characterized in that in step 3 by hot press parameter of colding pressing be: temperature is 25 ~ 45 DEG C, pressure is 5MPa ~ 10MPa, and the time is 1min ~ 3min.
9. the manufacture method of thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding according to claim 1, it is characterized in that in step 3 by hot press parameter of colding pressing being: temperature is 35 DEG C, and pressure is 6MPa, and the time is 2min.
10. the manufacture method of thin slice laminated solid body component moulded by a kind of wood based on ultrasonic bonding according to claim 1, it is characterized in that the welding parameter described in step 5 is: sending out the time of shaking is 1.0s, vibration frequency is 15kHz, time delay is 2s, hardening time is 1.0s, and to act on solder side pressure at right angle be 150N cylinder pressure is 0.5MPa.
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| CN201410718486.2A CN104527080A (en) | 2014-12-01 | 2014-12-01 | Method for manufacturing wood plastic sheet layered entity component based on ultrasonic welding |
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| CN201410718486.2A CN104527080A (en) | 2014-12-01 | 2014-12-01 | Method for manufacturing wood plastic sheet layered entity component based on ultrasonic welding |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802339A (en) * | 2015-05-04 | 2015-07-29 | 深圳市鑫立扬精密科技有限公司 | Quick precision mold preparation method |
| CN106584869A (en) * | 2016-12-30 | 2017-04-26 | 中国科学院宁波材料技术与工程研究所 | Method for manufacturing three-dimensional resin solid |
| CN107009042A (en) * | 2017-03-31 | 2017-08-04 | 西京学院 | A kind of 3D printing method for precisely forming |
| CN111331851A (en) * | 2020-03-12 | 2020-06-26 | 徐州工业职业技术学院 | Ultrasonic welding method for wood-plastic composite material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6519500B1 (en) * | 1999-09-16 | 2003-02-11 | Solidica, Inc. | Ultrasonic object consolidation |
| CN103009633A (en) * | 2012-12-28 | 2013-04-03 | 江苏大学 | Entity manufacturing method based on ultrathin layer wood-plastic composite material |
-
2014
- 2014-12-01 CN CN201410718486.2A patent/CN104527080A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6519500B1 (en) * | 1999-09-16 | 2003-02-11 | Solidica, Inc. | Ultrasonic object consolidation |
| CN103009633A (en) * | 2012-12-28 | 2013-04-03 | 江苏大学 | Entity manufacturing method based on ultrathin layer wood-plastic composite material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802339A (en) * | 2015-05-04 | 2015-07-29 | 深圳市鑫立扬精密科技有限公司 | Quick precision mold preparation method |
| CN106584869A (en) * | 2016-12-30 | 2017-04-26 | 中国科学院宁波材料技术与工程研究所 | Method for manufacturing three-dimensional resin solid |
| CN107009042A (en) * | 2017-03-31 | 2017-08-04 | 西京学院 | A kind of 3D printing method for precisely forming |
| CN111331851A (en) * | 2020-03-12 | 2020-06-26 | 徐州工业职业技术学院 | Ultrasonic welding method for wood-plastic composite material |
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