CN103112070B - Pyrolysis wood surface forming processing device - Google Patents
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Abstract
The invention discloses a pyrolysis wood surface forming processing device which comprises a silicon controlled frequency conversion pressure regulating and pressure transforming system, a temperature detecting and control system, a wood pyrolysis kinetic parameter detecting system, a heating model, a processing cabin, a wind-pumping and exhausting and carbon-residue-eliminating and accumulating system, a wood board work piece drive system and a carbon deposition automatic cleaning system. The pyrolysis wood surface forming processing device substantially improves processing efficiency, reduces rates of defective products in the processing process and processing costs, achieves low-noise processing of wood surface forming and carbonization treatment of processed finish products, improves quality of the products, reduces costs of complexly carved wood products, expands large-scale production and application space of the complexly carved wood products, provides a new and effective solution method for efficient and accurate processing of complex three dimensional (3D) curved surfaces of the wood products, achieves low cost, agile complex shape processing of wood or surfaces of composite wood, and has wide application prospect in the producing and processing of furniture, decoration components and craftwork.
Description
Technical field
The invention belongs to timber forming processing device, be specially a kind of pyrolysismethod wood surface forming processing device.
Background technology
Craft, mechanization, digitized development course have been experienced in the processing of timber, but this course depend on all the time metal cutter to timber directly saw, dig, the processing method such as file, milling, car, carving.The traditional Wood engraving product of China forms its unique style with exquisite sculpture art and moulding; technology and artistic perfect adaptation; this not only requires the producer to possess superb hand engraving skill; but also need possess darker artistic attainments and art accomplishment; it depends on for a long time manual skill and passes on, and this also becomes the bottleneck that this skill of restriction develops in depth and realizes scale, mass, end cost, high efficiency production.Along with CNC(computer numerical control) technology is in the extensive popularization and application of machining industry, utilizes multiaxis CNC equipment to process the more complicated 3D pattern of wood surface, is also applied in recent years and develops, and has increasing Related product to introduce to the market.But the digital control processing of timber and metal has larger difference, except physics and the chemical characteristic of timber and metal exist significant difference, the normally standardized processing of metal processing, aesthetics and artistry are more focused in the processing of timber, the product surface processing is complicated, a uncertain 3D random field often, be difficult to seek the processing method of unified standardization, thereby have more complexity and uncontrollability.
At present, research and practice to digitlization wood carving technology shows, while adopting numerical control device to carry out Carving Machining to 3D surface model as complicated in classic carved furniture etc., still there are some impassable defects, even if it is also usually easily to cause workpiece to collapse the phenomenon such as angle, raw edges that highdensity high-quality timber adds man-hour in details, and is difficult to realize complex-curved processing.Need adopt the processing mode of tight loop layering to the processing of complicated 3D curved surface due to CNC system simultaneously, cutter is from certain point, to the processing that completes every layer of loop and whole curved surface, need to advance step number, stroke and time is huge, if the processing thickness of every layer and loop spacing are arranged little, be still a low process of time-consuming longer efficiency, but these parameters are arranged greatly, in process, can there is at any time again breaking, leapfrog, burst apart or hinder the possibility of waiting indefinitely, and be difficult to obtain desirable processing effect, and need more postprocessing working procedures.
The laser ablation forming technique of the timber occurring in recent years, it is a kind of new technology that is different from wood surface traditional diamond-making technique, it adopts numerical control device driving laser generator, utilize the high temperature sintering wood surface that laser produces to form floral designs, but this process technology can only process on timber top layer extremely shallow floral designs at present, can not get as the complicated 3D curved surface effect of the products such as Chinese classical carved furniture, and apparatus expensive, consume large, processing cost is high.
In addition the so-called flatiron occurring is drawn a picture, to utilize electrothermal method to form and paint on plank surface, this needs professional person that skill is high to rely on electric iron hand-manipulated completely to complete, can only build very shallow top layer pattern effect, and the low suitability for industrialized production that is not suitable for of efficiency.
Summary of the invention
Technical problem solved by the invention is to provide a kind of pyrolysismethod wood surface forming processing device, it is different from traditional employing metal cutting tool wood surface is dug, file, milling, the processing unit (plant) of the moulding such as carving, but utilize the model of the heater such as graphite or ferrum-chromium-aluminum structure and the processing unit (plant) that wood surface carries out contact high temperature pyrolysis and burning moulding, relate to the mechanism of fever model to the moulding of wood surface pyrogenation and combustion, the modeling of heater and structure, processing conditions and environment control and process unit manufacture and design etc., to solve the problem in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
Pyrolysismethod wood surface forming processing device, comprises controllable silicon frequency conversion voltage adjusting and transformation system, temperature detection and control system, thermal decomposition of wood kinetic parameter detecting system, fever model and processing storehouse, pump drainage wind and row's carbon distribution slag system, plank workpiece drive system and the automatic scavenge system of carbon distribution, described controllable silicon frequency conversion voltage adjusting and transformation system are made up of controllable silicon frequency conversion voltage adjusting device and transformer, the output of described controllable silicon frequency conversion voltage adjusting device is connected with the input of transformer, controllable silicon frequency conversion voltage adjusting device is arranged in switch board, described processing storehouse is the sealing device of an end face opening, described fever model is arranged in processing storehouse, fever model is connected with the output of transformer, fever model and processing storehouse are also connected with control system with described temperature detection, the top face in processing storehouse is provided with processing Cang Gai, lid below, described processing storehouse is provided with floating holder and thermal decomposition of wood kinetic parameter detecting system, described processing Cang Gai and cylinder, plank workpiece drive system is connected, processing storehouse is provided with the automatic scavenge system of carbon distribution, and the automatic scavenge system of described carbon distribution is driven by speed reduction driving mechanism for power, processing middle and lower part, storehouse is provided with pump drainage wind and row's carbon distribution slag system, described controllable silicon frequency conversion voltage adjusting device carries out pressure regulation to AC power, by the large electric current of transformer output LOW voltage, powers to fever model, plank is fixed on floating holder, and plank workpiece drive systems processing storehouse lid is closed, and air cylinder driven processing Cang Gai makes plank contact with fever model, to fever model power supply, plank is carried out to pyrolysis process, record the cumulative number of the product of intermittent sampling pyrolysis time and fever model surface temperature by temperature detection and control system, the unlike material plank equivalent heat skill relatively obtaining in processing, the estimation plank pyrolysis process degree of depth and carbon distribution thickness and decision open a position time of de-carbon, processing Cang Gai and plank are risen to assigned address by plank workpiece drive system, start the automatic scavenge system of carbon distribution, automatically remove plank area carbon, be confirmed whether to reach working depth requirement, reaching working depth requires process to finish, do not reach requirement and again enter pyrolytic process, through the reciprocal pyrolysis of 2～4 times and de-carbon processing, the floral designs that obtain required working depth on plank surface finish.
Temperature detection and control system telemetry circuit, thermal decomposition of wood kinetic parameter detecting system telemetry circuit, pump drainage wind and row's carbon distribution slag system control circuit, plank workpiece drive system control circuit and the automatic scavenge system control circuit of carbon distribution are also installed in described switch board, and the controllable silicon frequency conversion voltage adjusting device in switch board adopts the pressure regulation of water-cooled high-power silicon controlled power modulation.
Described temperature detection and control system adopt PID temperature control system to realize the observing and controlling of temperature in fever model surface and processing storehouse, in PID temperature control system, temperature element adopts thermistor, and described temperature element is connected with control system telemetry circuit with temperature detection by high temperature resistant cable.Temperature detection and control system realize the measurement and the control that fever model surface are applicable to being applicable in operating temperature and processing storehouse Wood carbonization temperature; According to the material of processing plank, fever model surface Working Temperature is set as 660～800 DEG C, and in processing storehouse, Temperature Setting is 260～300 DEG C.
Described thermal decomposition of wood kinetic parameter detecting system is according to conclusion and the process data of the thermal decomposition of wood and combustion characteristics and mechanism research, to the kinetic parameter HRR in wood surface pyrolysis forming process, mass loss rate and smoke discharge amount are measured and data acquisition, correlation between every data and plank pyrolysis moulding result and impact are carried out to careful analysis comparison, by the thermal decomposition of wood kinetic model and the revision models parameter that build, make the parameter of measuring can truly reflect and control plank pyrolysis moulding result and the correlation of different densities.
Described plank workpiece drive system adopts numerical control stepper motor to drive screw mandrel guide rail vertical lift, and plank and processing storehouse lid synchronization lifting, after the lid closure of processing storehouse, are contacted with processing storehouse internal heat generation model by air cylinder driven plank.Carrying out in plank surface pyrolysis forming process, and realize the constant voltage control that plank contacts with fever model.Plank workpiece drive system adopts timing or pyrolysis at intermittence procedure, coordinates the automatic scavenge system of carbon distribution, completes the pyrolysis processing and forming on plank surface.
Fever model is the instrument to the moulding of plank pyrolysis process, adopts graphite or lectrothermal alloy wire, or the combination of graphite and lectrothermal alloy wire.The fever model that graphite and lectrothermal alloy wire are formed, can be respectively or both collective models of being combined into by connection in series-parallel, and plank is realized to pyrolysis process moulding.Processing storehouse is the working space to the moulding of plank pyrolysis process, for avoiding pyrolysis molding process to produce naked light, the pump drainage wind of processing middle and lower part, storehouse and row's carbon distribution slag system are suitably controlled air to amount and pump drainage air quantity, discharge generation flue gas and carbon distribution impurity in storehouse simultaneously.
The pyrolysis molding process of plank is to hocket with the carbon distribution of removing the pyrolysis formation of plank surface.A complete meeting of pyrolysis forms the floral designs of 8～12 mm depths on plank surface, floral designs place forms the surface area carbon-coating of approximately 2～3 millimeters, at this moment needs unlatching processing Cang Gai lifting plank to complete the removing of carbon.For the timber of different densities of weight, the processing and forming degree of depth of pyrolysis, and the time interval of pyrolysis and decarbonizing is at every turn distinguished to some extent.By stepper motor and cylinder, processing Cang Gai and plank are risen to specified altitude assignment, the automatic scavenge system of carbon distribution is by reducing motor drive sprocket and chain, the flat back and forth movement of cylindrical polished steel swabbing that drive is rotated by reducing motor driving once, carbon distribution to plank surface is removed, then continue reset pyrolysis, repeat this process 2～4 times, until process required floral designs and the degree of depth finishes.Plank after processing obtains finished product through subsequent technique processing such as polishing and applications.
Beneficial effect:
The processing method that the present invention is more traditional, has the following advantages:
(1) can disposablely process the moulded of wood surface, significantly improve working (machining) efficiency, reduce process defect ware rate, cut down finished cost, and realize the low noise processing to wood surface moulding, the finished product of processing is realized to carbonization treatment, the quality of improving product simultaneously.
(2) quality of processing object timber is not had to particular/special requirement, low density timber, working (machining) efficiency is higher, and shaping speed is faster; Can be fast on common wood or plant base composite, highly-efficient processing goes out complicated 3D model, thereby reduce the cost of complicated engraving woodwork, expand its large-scale production and application space.
(3) for the efficient precisely processing of the complicated 3D curved surface of woodwork provides a new efficient solution approach, realize low cost, the processing of Agility complex model on timber or composite wood surface, in the production and processing of furniture, decoration element and handicraft, have broad application prospects.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is system architecture schematic diagram of the present invention;
Fig. 3 is flow process chart of the present invention.
Detailed description of the invention
In order to make technological means of the present invention, creation characteristic, workflow, using method reach object and effect is easy to understand, below further set forth the present invention.
As shown in Figure 1, Figure 2, Figure 3 shows, pyrolysismethod wood surface forming processing device, comprises controllable silicon frequency conversion voltage adjusting and transformation system, temperature detection and control system, thermal decomposition of wood kinetic parameter detecting system, fever model 2 and processing storehouse 1, pump drainage wind and row's carbon distribution slag system, plank workpiece drive system and the automatic scavenge system of carbon distribution, described controllable silicon frequency conversion voltage adjusting and transformation system are made up of controllable silicon frequency conversion voltage adjusting device 5 and transformer 3, the output of described controllable silicon frequency conversion voltage adjusting device 5 is connected with the input of transformer 3, controllable silicon frequency conversion voltage adjusting device 5 is arranged in switch board 4, described processing storehouse 1 is the sealing device of an end face opening, described fever model 2 is arranged in processing storehouse 1, fever model 2 is connected with the output of transformer 3, fever model 2 and processing storehouse 1 are also connected with control system with described temperature detection, the top face in processing storehouse 1 is provided with processing storehouse lid 6, described processing storehouse is covered 6 belows and is provided with floating holder 7 and thermal decomposition of wood kinetic parameter detecting system, described processing storehouse lid 6 and cylinder 8, plank workpiece drive system is connected, processing storehouse 1 is provided with the automatic scavenge system of carbon distribution, and the automatic scavenge system of described carbon distribution is driven by reducing motor 14, processing 1 middle and lower part, storehouse is provided with pump drainage wind and row's carbon distribution slag system, described controllable silicon frequency conversion voltage adjusting device 5 carries out pressure regulation to alternating current, by the large electric current of transformer 3 output LOW voltage, powers to fever model 2, plank is fixed on floating holder 7, and 6 closures are covered in plank workpiece drive systems processing storehouse, and plank is contacted with fever model 2, to fever model power supply, plank is carried out to pyrolysis process, record the cumulative number of the product of intermittent sampling pyrolysis time and fever model surface temperature by temperature detection and control system, the unlike material plank equivalent heat skill relatively obtaining in processing, estimation the plank pyrolysis process degree of depth and carbon distribution thickness are with the time of the de-carbon that determines to open a position, processing storehouse lid 6 and plank are risen to assigned address by plank workpiece drive system, start the automatic scavenge system of carbon distribution, automatically remove plank area carbon, be confirmed whether to reach working depth requirement, reaching requirement process finishes, do not reach requirement and again enter pyrolytic process, through the reciprocal pyrolysis of 2～4 times and de-carbon processing, obtaining required floral designs on plank surface finishes.
Temperature detection and control system telemetry circuit, thermal decomposition of wood kinetic parameter detecting system telemetry circuit, pump drainage wind and row's carbon distribution slag system control circuit, plank workpiece drive system control circuit and the automatic scavenge system control circuit of carbon distribution are also installed in described switch board 4, controllable silicon frequency conversion voltage adjusting device 5 range of regulation 0V～380V in switch board, adopt the pressure regulation of water-cooled high-power silicon controlled power modulation.Switch board 4 erecting of panels have voltage, electric current, measurement and control of temperature instrument and action button; A rated voltage 380V of described transformer 3, the secondary rated voltage 70V of transformer 3, rated current 350A; Described fever model 2 is low-voltage and high-current working environments, is to reduce primary circuit electric current, to exchanging the pressure regulation of 380V single phase poaer supply, provides working power through transformer 3 transformations for fever model 2 by controllable silicon frequency conversion voltage adjusting device 4.
Described temperature detection and control system adopt PID temperature control system to realize the observing and controlling of fever model 2 surfaces and processing storehouse 1 interior temperature, in PID temperature control system, temperature element adopts thermistor, 0～800 DEG C of temperature-measuring range, accuracy of temperature control ± 2 DEG C, described temperature element is connected with control system telemetry circuit with temperature detection by high temperature resistant cable.Temperature detection and control system realize the measurement and the control that fever model 2 surfaces are applicable to the interior applicable Wood carbonization temperature of operating temperature and processing storehouse 1; Be 660～800 DEG C to fever model surface Working Temperature, in processing storehouse, temperature is 260～300 DEG C, and this temperature is used for reference the carbonization treatment technology of timber, and pyrolysis process realizes the carbonization treatment to plank simultaneously, promotes the quality of processed finished products.
Thermal decomposition of wood kinetic parameter detecting system is according to conclusion and the process data of the thermal decomposition of wood and combustion characteristics and mechanism research, to the major impetus mathematic(al) parameter HRR in wood surface pyrolysis forming process, mass loss rate and smoke discharge amount are measured and data acquisition, correlation between every data and plank pyrolysis moulding result and impact are carried out to careful analysis comparison, by the thermal decomposition of wood kinetic model and the revision models parameter that build, make the parameter of measuring can truly reflect and control plank pyrolysis moulding result and the correlation of different densities.
Thermal decomposition of wood kinetic parameter determination method: thermal decomposition of wood kinetic parameter detecting system forms by being arranged on the flue gas analyzer of smoke discharging pipe 15 and the weighing device of plank, can be to the plank of unlike material in contact pyrolysis and combustion process, the CO of generation, CO
2and O
2matter damage efficiency etc. Gas Parameters and plank is carried out Measurement and analysis.Due to thermal decomposition of wood kinetic parameter is detected and being analyzed, what traditional method adopted is all contactless infrared source, and the present invention adopts the pyrolysis and combustion pattern of contact, thereby determination method exists larger difference.Feature of the present invention is the plank corresponding region that fever model is contacted with target, carries out efficiently pyrolysis and combustion moulding fast.According to the plank of unlike material, first fever model 2 surface temperatures are raised to a higher value (400～550 DEG C), after fever model 2 contacts with plank, rapidly fever model 2 surface temperatures are risen to 660～800 DEG C, this process record pyrolysis time, calculate HRR (HRR), mass loss rate (MLR), smoke discharge amount (SOM) according to pyrolysis kinetic model, and the carbon distribution thickness that forms of plank pyrolysis contact-making surface, draw these relevant parameters of unlike material plank pyrolytic process.The cumulative number of the product of the temperature on available intermittent sampling pyrolysis time and fever model surface, as equivalent heat skill, draw the unlike material plank equivalent heat skill corresponding plank pyrolysis process degree of depth and carbon distribution thickness by processing, with instruct with control device open a position de-carbon time and need the number of times of cyclic process.
By processing, the parameter such as mechanical deformation, density and quality of processing rear plank is tested and analyzed.Result shows the mechanism with wood surface direct contact heat solution and burning by fever model 2, although plank surface pyrolysis and combustion process mechanism are had to homoplasy with radiant heat flux under air ambient.But under sealed environment of the present invention, adopt high temperature fever model 2 to exert pressure and contact pyrogenation and combustion reaction the plank surface short time, the matter mistake rate (MLR) that plank is touched position rises rapidly, form very soon by the cutter trade of fever model pyrogenation and combustion, the other parts chemical composition of plank changes and physical deformation not obvious (surface protection can be done with micarex in the position not processing), plank is not caused the pyrogenation and combustion of the degree of depth, just form the thin carbon of one deck on the surface of processing contact, plank is by repeatedly the pyrolysis of short-time contact fever model and burning and carbon cleaning obtain the finished product of processing repeatedly.
Described plank workpiece drive system adopts numerical control stepper motor 10 to drive screw mandrel guide rail 11 vertical lifts, screw mandrel guide rail 11 is connected with processing storehouse lid 6 by connecting rod 9, plank is fixing by floating holder 7, plank covers 6 synchronization liftings with processing storehouse, processing storehouse is covered after 6 closures, drives plank to contact with processing storehouse 1 internal heat generation model 2 by cylinder 8.Carry out plank surface pyrolysis forming process pyrolytic process, and realizing the constant voltage control that plank contacts with fever model 2.Plank workpiece drive system adopts timing or pyrolysis at intermittence procedure, coordinates the automatic scavenge system of carbon distribution, completes the pyrolysis processing and forming on plank surface.
Fever model 2 is the instruments to the moulding of plank pyrolysis process, and fever model adopts the lectrothermal alloy wires such as graphite and ferrum-chromium-aluminum, or their combination.Graphite is a kind of Inorganic Non-metallic Materials, has and good conduction, heat conduction, corrosion-resistant and heat-resisting ability, is easy to accurate machined moulding and recycling, can precisely process quickly the heating graphite mould of complicated 3D decorative pattern.The lectrothermal alloy wires such as ferrum-chromium-aluminum have the features such as cost is low, intensity is high, long working life, to some better simply lines decorative pattern or border floral designs, are directly the ferrum-chromium-aluminum lectrothermal alloy wire brake forming of 4～10 millimeters by diameter.The fever model that graphite and ferrum-chromium-aluminum are formed, can be respectively or both collective models of being combined into by connection in series-parallel, and plank is realized to pyrolysis process moulding.Processing storehouse 1 is the working space to the moulding of plank pyrolysis process, for avoiding pyrolysis molding process to produce naked light, processes the smoke discharging pipe 15 of 1 middle and lower part, storehouse and suitably controls air to amount and pump drainage air quantity, discharges generation flue gas and carbon distribution impurity in storehouse simultaneously.
The pyrolysis molding process of plank is to hocket with the carbon distribution of removing the pyrolysis formation of plank surface.A complete meeting of pyrolysis is at the surperficial floral designs that form 8～12 mm depths of plank, and floral designs place forms the surface area carbon-coating of approximately 2～3 millimeters, at this moment needs unlatching processing storehouse lid 6 lifting planks to complete the removing of carbon.For the timber of different densities of weight, the processing and forming degree of depth of pyrolysis, and the time interval of pyrolysis and decarbonizing is at every turn distinguished to some extent.First by stepper motor 10 and cylinder 8, processing storehouse lid 6 and plank are risen to setting height, the automatic scavenge system of carbon distribution is by reducing motor 14 drive sprockets and chain, the horizontal back and forth movement of cylindrical polishing steel brush 12 that drive is rotated by reducing motor driving once, drive motors 13 drives cylindrical polishing steel brush 12 to rotate the carbon distribution on plank surface is removed, then continue reset pyrolysis, repeat this process 2～4 times, until process required floral designs and the degree of depth finishes.Plank after processing obtains finished product through subsequent technique processing such as polishing and applications.
The operation that both can work alone of the each subsystem of the present invention, also can be by the procedure of setting, and realizes wood surface pyrolysis moulding full process automatization or semi-automatic processing.The present invention is elevated to optional position or desired location by stepper motor 10 by processing storehouse lid 6 and plank, and cylinder 8 drives plank to apply suitable pressure and contacts with fever model and carry out pyrolysis process; The cumulative number of the product of the temperature by intermittent sampling pyrolysis time and fever model surface, relatively obtains the equivalent heat skill of unlike material plank in processing, time and the estimation plank pyrolysis process degree of depth and the carbon distribution thickness of the de-carbon that determines to open a position; Remove by the automatic scavenge system of carbon distribution the carbon distribution forming after plank Surface Machining, to enter recirculation processing.Just can realize the continuity processing and forming to wood surface, simultaneously according to ripe Wood carbonization treatment technology, the temperature of controlling well in processing storehouse, at 260～300 DEG C, can realize processed finished products is carried out to carbonization treatment to a certain degree, with the quality of improving product.
Processing method of the present invention and CNC(computer numerical control) the wood surface processing method of system drive cutting tool is different, and it can be processed the timber of any quality and plant base composite, and to low density timber working (machining) efficiency is higher.
The mechanism research of the pyrogenation and combustion to timber at present, be all under contactless infrared source condition, carry out, set fire as object taking research, the mechanism that not fever model is not directly contacted to wood surface pyrogenation and combustion go deep into research widely, lacks be correlated with process data and conclusion.The Simple processing device that the present invention has built, taking oak floor as example, plank surface is wanted to the 3D curved surface decorative pattern of moulding processing, first build its mirror image model, this mirror image mould processing is gone out to heating graphite model with CNC equipment, the smoke evacuation through hole of the equally distributed some of heating graphite model, and some better simply lines decorative patterns or border decorative pattern are directly by the brake forming of ferrum-chromium-aluminum lectrothermal alloy wire, graphite and ferrum-chromium-aluminum fever model are combined and are connected transformer 3 by connection in series-parallel, fever model 2 is placed in processing storehouse 1, surface temperature is heated to approximately 480 DEG C, oak floor finished surface is covered to fever model 2 surfaces, and give suitable pressure (plank processing is heat insulation by asbestos mica board parcel with exterior domain), then temperature is controlled in fever model surface and be adjusted to 720 DEG C, in oak floor and heating graphite model direct contact heat solution and after burning 1.5 minutes, the floral designs of processed approximately average approximately 12 mm depths of oak floor machining area, and form the surface area carbon-coating of approximately 2～3 millimeters, immediate removal carbon, continue cyclic process 3 times, in 20 minutes, can go out the 3D curved surface floral designs that depth capacity exceedes 25 millimeters in oak floor Surface Machining.
More than show and described general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. pyrolysismethod wood surface forming processing device, comprises controllable silicon frequency conversion voltage adjusting and transformation system, temperature detection and control system, thermal decomposition of wood kinetic parameter detecting system, fever model and processing storehouse, pump drainage wind and row's carbon distribution slag system, plank workpiece drive system and the automatic scavenge system of carbon distribution, it is characterized in that: described controllable silicon frequency conversion voltage adjusting and transformation system are made up of controllable silicon frequency conversion voltage adjusting device and transformer, the output of described controllable silicon frequency conversion voltage adjusting device is connected with the input of transformer, controllable silicon frequency conversion voltage adjusting device is arranged in switch board, described processing storehouse is the sealing device of an end face opening, described fever model is arranged in processing storehouse, fever model is connected with the output of transformer, fever model and processing storehouse are also connected with control system with described temperature detection, the top face in processing storehouse is provided with processing Cang Gai, lid below, described processing storehouse is provided with floating holder and thermal decomposition of wood kinetic parameter detecting system, described processing Cang Gai and cylinder, plank workpiece drive system is connected, processing storehouse is provided with the automatic scavenge system of carbon distribution, and the automatic scavenge system of described carbon distribution is driven by speed reduction driving mechanism for power, processing middle and lower part, storehouse is provided with pump drainage wind and row's carbon distribution slag system, described controllable silicon frequency conversion voltage adjusting device carries out pressure regulation to alternating current, by the large electric current of transformer output LOW voltage, powers to fever model, plank is fixed on floating holder, and plank workpiece drive system drives processing storehouse lid closed by stepper motor, and air cylinder driven processing Cang Gai makes plank contact with fever model, to fever model power supply, plank is carried out to pyrolysis process, record the cumulative number of the product of intermittent sampling pyrolysis time and fever model surface temperature by temperature detection and control system, the unlike material plank equivalent heat skill relatively obtaining in processing, the estimation plank pyrolysis process degree of depth and carbon distribution thickness and decision open a position time of de-carbon, processing Cang Gai and plank are risen to assigned address by plank workpiece drive system, start the automatic scavenge system of carbon distribution, automatically remove plank area carbon, be confirmed whether to reach working depth requirement, reaching working depth requires process to finish, do not reach requirement and again enter pyrolytic process, through the reciprocal pyrolysis of 2～4 times and de-carbon processing, the floral designs that obtain required working depth on plank surface finish.
2. pyrolysismethod wood surface forming processing device according to claim 1, it is characterized in that: temperature detection and control system telemetry circuit, thermal decomposition of wood kinetic parameter detecting system telemetry circuit, pump drainage wind and row's carbon distribution slag system control circuit, plank workpiece drive system control circuit and the automatic scavenge system control circuit of carbon distribution are also installed in described switch board, and the controllable silicon frequency conversion voltage adjusting device in switch board adopts the pressure regulation of water-cooled high-power silicon controlled power modulation.
3. pyrolysismethod wood surface forming processing device according to claim 1, it is characterized in that: described temperature detection and control system adopt PID temperature control system to realize the observing and controlling of temperature in fever model surface and processing storehouse, in PID temperature control system, temperature element adopts thermistor, and described temperature element is connected with temperature measurement and control system monitoring circuit by high temperature resistant cable; Described temperature detection and control system realize the measurement and the control that fever model surface are applicable to being applicable in operating temperature and processing storehouse Wood carbonization temperature; Fever model surface Working Temperature is 660～800 DEG C, and in processing storehouse, temperature is 260～300 DEG C.
4. pyrolysismethod wood surface forming processing device according to claim 1, it is characterized in that: described thermal decomposition of wood kinetic parameter detecting system is according to conclusion and the process data of the thermal decomposition of wood and combustion characteristics and mechanism research, to the kinetic parameter HRR in wood surface pyrolysis forming process, mass loss rate and smoke discharge amount are measured and data acquisition, correlation between every data and plank pyrolysis moulding result and impact are carried out to careful analysis comparison, by the thermal decomposition of wood kinetic model and the revision models parameter that build, make the parameter of measuring can truly reflect and control plank pyrolysis moulding result and the correlation of different densities.
5. pyrolysismethod wood surface forming processing device according to claim 1, it is characterized in that: the cumulative number that records the product of intermittent sampling pyrolysis time and fever model surface temperature by described temperature detection and control system, the unlike material plank equivalent heat skill relatively obtaining in processing, estimation the plank pyrolysis process degree of depth and carbon distribution thickness are with the time of the de-carbon that determines to open a position, temperature in processing storehouse is controlled between 260～300 DEG C, this temperature is used for reference the carbonization treatment technology of timber, and pyrolysis process realizes the carbonization treatment to plank simultaneously.
6. pyrolysismethod wood surface forming processing device according to claim 1, it is characterized in that: described plank workpiece drive system adopts numerical control stepper motor to drive screw mandrel guide rail vertical lift, plank and processing storehouse lid synchronization lifting, after the lid closure of processing storehouse, contacted with processing storehouse internal heat generation model by air cylinder driven plank; Carrying out in plank surface pyrolysis forming process, and realize the constant voltage control that plank contacts with fever model; Plank workpiece drive system adopts timing or pyrolysis at intermittence procedure, coordinates the automatic scavenge system of carbon distribution, completes the pyrolysis processing and forming on plank surface.
7. pyrolysismethod wood surface forming processing device according to claim 1, is characterized in that: described fever model is the instrument to the moulding of plank pyrolysis process, adopts graphite or lectrothermal alloy wire, or the combination of graphite and lectrothermal alloy wire; Described processing storehouse is the working space to the moulding of plank pyrolysis process, for avoiding pyrolysis molding process to produce naked light, the pump drainage wind of processing middle and lower part, storehouse and row's carbon distribution slag system are suitably controlled air to amount and pump drainage air quantity, discharge generation flue gas and carbon distribution impurity in storehouse simultaneously.
8. according to the pyrolysismethod wood surface forming processing device described in claim 1 or 6, it is characterized in that: the pyrolysis molding process of plank is to hocket with the carbon distribution of removing the pyrolysis formation of plank surface; By stepper motor and cylinder, processing Cang Gai and plank are risen to specified altitude assignment, the automatic scavenge system of carbon distribution is by reducing motor drive sprocket and chain, the flat back and forth movement of cylindrical polished steel swabbing that drive is rotated by reducing motor driving once, carbon distribution to plank surface is removed, then continue reset pyrolysis, repeat this process 2～4 times, until process required floral designs and the degree of depth finishes.
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| CN1046114A (en) * | 1989-04-08 | 1990-10-17 | 刘清水 | Pseudo-classic treating technology for wooden article surface |
| CN1046237C (en) * | 1993-04-14 | 1999-11-10 | 吴明坤 | Method for making surface picture of flexible space magnetic stripe and product thereof |
| JPH08112858A (en) * | 1994-10-17 | 1996-05-07 | Taiho Kogyo Kk | Method and apparatus for manufacturing resin board |
| CN1042212C (en) * | 1995-03-20 | 1999-02-24 | 何天龙 | Method for making stereo-pattern on flat-faced wood |
| CN1057038C (en) * | 1995-07-14 | 2000-10-04 | 何天龙 | Coloured stereo pattern forming method on board surface and its product |
| CN2414891Y (en) * | 2000-04-10 | 2001-01-17 | 赖德先 | Wood embossing machine |
| JP3875689B2 (en) * | 2004-01-20 | 2007-01-31 | オリンパス株式会社 | Wood processing methods and processed products |
| FR2883788B1 (en) * | 2005-04-04 | 2011-08-19 | Edmond Pierre Picard | METHOD FOR THERMALLY TREATING WOOD, INSTALLATION FOR CARRYING OUT THE PROCESS, AND THERMALLY TREATED WOOD |
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