CN103112070A - Pyrolysis wood surface forming processing device - Google Patents
Pyrolysis wood surface forming processing device Download PDFInfo
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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 the 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 the metal cutter to timber directly saw, dig, file, mill, the processing method such as car, carving.The traditional Wood engraving product of China consists of its unique style with sculpture art and the moulding of fineness; it is the perfect adaptation of technology and art; 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 the CNC(computer numerical control) technology is in the extensive popularization and application of machining industry, utilizes multiaxis CNC equipment that the more complicated 3D pattern of wood surface is processed, and also is 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 exists significant difference, the normally standardized processing of metal processing, aesthetics and artistry are more paid attention in the processing of timber, the product surface that processes is a complexity, uncertain 3D random field often, be difficult to seek the processing method of unified standard, thereby have more complexity and uncontrollability.
At present, research and practice to digitlization wood carving technology shows, when 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 defectives, even if it is also usually easily to cause workpiece to collapse the phenomenons such as angle, raw edges that highdensity high-quality timber adds man-hour in details, and is difficult to realize complex-curved processing.Simultaneously need adopt the processing mode of tight loop layering due to the CNC system to the processing of complicated 3D curved surface, cutter is from certain point, to the processing of completing every layer of loop and whole curved surface, need to advance step number, stroke and time is huge, if arrange the processing thickness of every layer and loop spacing little, be still a low process of time-consuming long efficient, but these parameters have been arranged greatly, can there be at any time again breaking, leapfrog in process, 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 that occurs in recent years, it is a kind of new technology that is different from the 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 the timber top layer extremely shallow floral designs at present, can not get the complicated 3D curved surface effect as products such as Chinese classical carved furnitures, and apparatus expensive, consume large, processing cost is high.
The so-called flatiron that occurs is in addition drawn a picture, to utilize electrothermal method to paint in plank surface formation, this needs the high professional person of skill to rely on electric iron hand-manipulated fully to complete, can only build very shallow top layer pattern effect, and the low suitability for industrialized production that is not suitable for of efficient.
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, mill, the processing unit (plant) of the moulding such as carving, but utilize the model of the heaters structures such as graphite or ferrum-chromium-aluminum and the processing unit (plant) that wood surface carries out contact high temperature pyrolysis and burning moulding, relate to fever model to the mechanism of wood surface pyrogenation and combustion moulding, the modeling of heater and structure, processing conditions and environment are controlled and process unit manufactures and designs etc., to solve the problem in the 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 processes 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 comprised 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 on processes in the storehouse, fever model is connected with the output of transformer, fever model and processing the storehouse also be 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, the plank workpiece drive system is connected, the 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 it is closed that plank workpiece drive systems is processed the storehouse lid, and air cylinder driven processing Cang Gai makes plank contact with fever model, to the fever model power supply, plank is carried out 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 that relatively obtains in processing, the estimation plank pyrolysis process degree of depth and carbon distribution thickness and decision open a position time of de-carbon, the plank workpiece drive system will process Cang Gai and plank rises to assigned address, start the automatic scavenge system of carbon distribution, automatically remove the plank area carbon, be confirmed whether to reach the 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 the 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 also are 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 the PID temperature control system to realize the surperficial observing and controlling with processing temperature in the storehouse of fever model, in the PID temperature control system, temperature element adopts thermistor, and described temperature element is connected with the control system telemetry circuit with temperature detection by high temperature resistant cable.Temperature detection and control system realize the suitable operating temperature in fever model surface and process measurement and the control that is fit to the Wood carbonization temperature in the storehouse; According to processing plank material, the fever model surface Working Temperature is set as 660～800 ℃, processing the storehouse in Temperature Setting be 260～300 ℃.
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 careful analysis relatively, by thermal decomposition of wood kinetic model and the revision models parameter that builds, make the parameter of measurement can truly reflect and control plank pyrolysis moulding result and the correlation of different densities.
Described plank workpiece drive system employing numerical control stepper motor drives screw mandrel guide rail vertical lift, and plank covers synchronization lifting with processing the storehouse, after processing storehouse lid closure, is contacted with processing storehouse internal heat generation model by the air cylinder driven plank.In carrying out plank surface pyrolysis forming process, and realize the constant voltage control that plank contacts with fever model.The plank workpiece drive system adopts regularly 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, the perhaps combination of graphite and lectrothermal alloy wire.The fever model that graphite and lectrothermal alloy wire are consisted of can be respectively or both collective models of being combined into by connection in series-parallel, and plank is realized the pyrolysis process moulding.The processing storehouse is the working space to the moulding of plank pyrolysis process, for avoiding the 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 simultaneously and produce flue gas and carbon distribution impurity in the storehouse.
The pyrolysis molding process of plank is to hocket with the carbon distribution of removing plank surface pyrolysis formation.A complete meeting of pyrolysis forms the floral designs of 8～12 mm depths on plank surface, the floral designs places forms the approximately surface area carbon-coating of 2～3 millimeters, at this moment need open processing Cang Gai and promote the removing that plank is completed 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 with cylinder will process Cang Gai and plank rises 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 drives rotation by reducing motor once, carbon distribution to the plank surface is removed, then continue the pyrolysis that resets, repeat this process 2～4 times, until process required floral designs and degree of depth end.Plank after processing is processed through subsequent techniques such as polishing and applications and is obtained finished product.
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 the defect ware rate, cut down finished cost, and realize the low noise of wood surface moulding is processed, simultaneously the finished product of processing is realized carbonization treatment, the quality of improving product.
(2) quality of processing object timber do not had specific (special) requirements, low density timber, working (machining) efficiency is higher, and shaping speed is faster; Namely 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) provide a new efficient solution approach for the efficient precisely processing of the complicated 3D curved surface of woodwork, realize low cost, the processing of Agility complex model on timber or composite wood surface, have broad application prospects in the production and processing of furniture, decoration element and handicraft.
Description of 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.
The specific embodiment
In order to make technological means of the present invention, creation characteristic, workflow, using method reach purpose and effect is easy to understand, below further set forth the present invention.
as Fig. 1, Fig. 2, shown in Figure 3, 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 processes 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 comprised 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 on processes in storehouse 1, fever model 2 is connected with the output of transformer 3, fever model 2 and processing storehouse 1 also be connected with control system with described temperature detection, the top face in processing storehouse 1 is provided with processes storehouse lid 6, lid 6 belows, described processing storehouse are provided with floating holder 7 and thermal decomposition of wood kinetic parameter detecting system, described processing storehouse lid 6 and cylinder 8, the 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, 5 pairs of alternating currents of described controllable silicon frequency conversion voltage adjusting device carry out pressure regulation, by the transformer 3 large electric currents of output LOW voltage, give fever model 2 power supplies, plank is fixed on floating holder 7, and plank workpiece drive systems is processed storehouse lid 6 closures, and plank is contacted with fever model 2, to the fever model power supply, plank is carried out 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 that relatively obtains 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, the plank workpiece drive system will be processed storehouse lid 6 and plank rises to assigned address, start the automatic scavenge system of carbon distribution, automatically remove the plank area carbon, be confirmed whether to reach the working depth requirement, reaching the requirement process finishes, do not reach requirement and again enter pyrolytic process, through the reciprocal pyrolysis of 2～4 times and de-carbon processing, obtain required floral designs finishes on the plank surface.
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 also are 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 electrothermic model 2 is low-voltage and high-current working environments, for reducing the primary circuit electric current, exchanges the pressure regulation of 380V single phase poaer supply by 4 pairs of controllable silicon frequency conversion voltage adjusting devices, provides working power through transformer 3 transformations for electrothermic model 2.
Described temperature detection and control system adopt the PID temperature control system to realize the surperficial observing and controlling with processing storehouse 1 interior temperature of fever model 2, in the PID temperature control system, temperature element adopts thermistor, 0～800 ℃ of temperature-measuring range, accuracy of temperature control ± 2 ℃, described temperature element is connected with the control system telemetry circuit with temperature detection by high temperature resistant cable.Temperature detection and control system realize measurement and the control to the fever model 2 suitable operating temperatures in surface and the interior suitable Wood carbonization temperature in processing storehouse 1; Be 660～800 ℃ to the fever model surface Working Temperature, in the processing storehouse, temperature is 260～300 ℃, and this temperature is used for reference the carbonization treatment technology of timber, and pyrolysis process realizes the carbonization treatment to plank simultaneously, the quality of lifting 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 careful analysis relatively, by thermal decomposition of wood kinetic model and the revision models parameter that builds, make the parameter of measurement 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 is made of the flue gas analyzer that is arranged on 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 efficient etc. Gas Parameters and plank is carried out Measurement and analysis.Analyze due to thermal decomposition of wood kinetic parameter is detected, what traditional method adopted is all contactless infrared source, and the present invention adopts the pyrolysis and combustion pattern of contact, thereby there is larger difference in determination method.Characteristics of the present invention are the plank corresponding regions that fever model is contacted with target, carry out efficiently pyrolysis and combustion moulding fast.Plank according to unlike material, at first fever model 2 surface temperatures are raised to a higher value (400～550 ℃), when fever model 2 with after plank contacts, rapidly fever model 2 surface temperatures are risen to 660～800 ℃, 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 the 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 and control device open a position de-carbon time and need the number of times of cyclic process.
By processing, the parameters such as mechanical deformation, density and quality of processing rear plank are tested and analyzed.Result shows with the mechanism of fever model 2 with wood surface direct contact heat solution and burning, although under air ambient, plank surface pyrolysis and combustion process mechanism are had homoplasy with radiant heat flux.but under sealed environment of the present invention, adopt 2 pairs of plank surface short time of high temperature fever model to exert pressure and contact the pyrogenation and combustion reaction, the matter mistake rate (MLR) that plank is touched the 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 that does not process), 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 the pyrolysis of short-time contact fever model and burning and the carbon cleaning finished product that obtains processing repeatedly 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 and processing storehouse lid 6 synchronization liftings, after processing storehouse lid 6 closures, drive planks and process storehouse 1 internal heat generation model 2 and contact 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.The plank workpiece drive system adopts regularly 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, perhaps 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 characteristics 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 consisted of can be respectively or both collective models of being combined into by connection in series-parallel, and plank is realized the pyrolysis process moulding.Processing storehouse 1 is the working space to the moulding of plank pyrolysis process, produces naked light for avoiding the pyrolysis molding process, 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 simultaneously generation flue gas and carbon distribution impurity in the storehouse.
The pyrolysis molding process of plank is to hocket with the carbon distribution of removing plank surface pyrolysis formation.A complete meeting of pyrolysis forms the floral designs of 8～12 mm depths on plank surface, the floral designs places forms the approximately surface area carbon-coating of 2～3 millimeters, at this moment need open processing storehouse lid 6 and promote the removing that planks are completed 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.At first will process storehouse lid 6 by stepper motor 10 and cylinder 8 and plank rises 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 drives rotation by reducing motor once, drive motors 13 cylindrical polishing steel brushes 12 rotations of drive are removed the carbon distribution on plank surface, then continue the pyrolysis that resets, repeat this process 2～4 times, until process required floral designs and degree of depth end.Plank after processing is processed through subsequent techniques such as polishing and applications and is obtained finished product.
The operation that both can work alone of each subsystem of the present invention also can by the procedure of setting, realize wood surface pyrolysis moulding full process automatization or semi-automatic processing.The present invention will process storehouse lid 6 by stepper motor 10 and plank is elevated to optional position or desired location, and cylinder 8 drives planks and applies suitable pressure and contact 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 that forms after the plank Surface Machining, to enter recirculation processing.Just can realize the continuity processing and forming to wood surface, simultaneously according to the Wood carbonization treatment technology of maturation, control temperature in the processing storehouse well at 260～300 ℃, can realize processed finished products is carried out to a certain degree carbonization treatment, 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 timber and the plant base composite of any quality, and to low density timber working (machining) efficiency is higher.
At present to the mechanism research of the pyrogenation and combustion of timber, be all carry out under contactless infrared source condition, set fire as purpose take research, the mechanism that not fever model is not directly contacted the wood surface pyrogenation and combustion go deep into research widely, lacks be correlated with process data and conclusion.the present invention builds the Simple processing device of completing, take oak floor as example, to the surperficial 3D curved surface decorative pattern of wanting moulding processing of plank, at first build its mirror image model, with CNC equipment, this mirror image mould processing is gone out the heating graphite model, 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 electrothermic model make up by connection in series-parallel and connect transformer 3, fever model 2 is placed at processes in storehouse 1, surface temperature is heated to approximately 480 ℃, the oak floor finished surface is covered fever model 2 surfaces, and give suitable pressure (plank processing is heat insulation by the asbestos mica board parcel with exterior domain), then fever model surface is controlled adjustment to 720 ℃, in oak floor and heating graphite model direct contact heat solution and after burning 1.5 minutes, the processed approximately average approximately floral designs of 12 mm depths of oak floor machining area, and form the approximately surface area carbon-coating of 2～3 millimeters, the immediate removal carbon, continue cyclic process 3 times, can go out the 3D curved surface floral designs that depth capacity surpasses 25 millimeters in the oak floor Surface Machining in 20 minutes.
Above demonstration and described basic 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 describes in above-described embodiment and specification 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, comprise 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 process 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 comprised 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 on processes in the storehouse, fever model is connected with the output of transformer, fever model and processing the storehouse also be 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, the plank workpiece drive system is connected, the 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 the plank workpiece drive system is driven by stepper motor and processes storehouse lid closure, and air cylinder driven processing Cang Gai makes plank contact with fever model, to the fever model power supply, plank is carried out 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 that relatively obtains in processing, the estimation plank pyrolysis process degree of depth and carbon distribution thickness and decision open a position time of de-carbon, the plank workpiece drive system will process Cang Gai and plank rises to assigned address, start the automatic scavenge system of carbon distribution, automatically remove the plank area carbon, be confirmed whether to reach the 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 the 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 also are 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 the PID temperature control system to realize the surperficial observing and controlling with processing temperature in the storehouse of fever model, in the PID temperature control system, temperature element adopts thermistor, and described temperature element is connected with the control system telemetry circuit with temperature detection by high temperature resistant cable; Described temperature detection and control system realize the suitable operating temperature in fever model surface and process measurement and the control that is fit to the Wood carbonization temperature in the storehouse; Be 660～800 ℃ to the fever model surface Working Temperature, processing the storehouse in temperature be 260～300 ℃.
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 careful analysis relatively, by thermal decomposition of wood kinetic model and the revision models parameter that builds, make the parameter of measurement 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 that relatively obtains 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, to process that in the storehouse, temperature is controlled between 260～300 ℃, 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 the 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 the air cylinder driven plank; In carrying out plank surface pyrolysis forming process, and realize the constant voltage control that plank contacts with fever model; The plank workpiece drive system adopts regularly 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, it is characterized in that: described fever model is the instrument to the moulding of plank pyrolysis process, adopts graphite or lectrothermal alloy wire, the perhaps combination of graphite and lectrothermal alloy wire; Described processing storehouse is the working space to the moulding of plank pyrolysis process, for avoiding the 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 simultaneously and produce flue gas and carbon distribution impurity in the storehouse.
8. according to claim 1 or 6 described pyrolysismethod wood surface forming processing devices is characterized in that: the pyrolysis molding process of plank is and removes the carbon distribution that plank surface pyrolysis forms and hocket; By stepper motor with cylinder will process Cang Gai and plank rises 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 drives rotation by reducing motor once, carbon distribution to the plank surface is removed, then continue the pyrolysis that resets, repeat this process 2～4 times, until process required floral designs and degree of depth end.
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| CN201310028493.5A CN103112070B (en) | 2013-01-25 | 2013-01-25 | Pyrolysis wood surface forming processing device |
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| CN201310028493.5A CN103112070B (en) | 2013-01-25 | 2013-01-25 | Pyrolysis wood surface forming processing device |
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| CN103112070B CN103112070B (en) | 2014-12-03 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046114A (en) * | 1989-04-08 | 1990-10-17 | 刘清水 | Pseudo-classic treating technology for wooden article surface |
| US5452508A (en) * | 1993-04-14 | 1995-09-26 | Wu; Michael | Method for manufacturing surface three-dimensional figures on magnetic material |
| JPH08112858A (en) * | 1994-10-17 | 1996-05-07 | Taiho Kogyo Kk | Method and apparatus for manufacturing resin board |
| CN1131617A (en) * | 1995-03-20 | 1996-09-25 | 何天龙 | Method for making stereo-pattern on flat-faced wood |
| CN1140647A (en) * | 1995-07-14 | 1997-01-22 | 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 |
| JP2005205618A (en) * | 2004-01-20 | 2005-08-04 | Olympus Corp | Wood processing method and processed product |
| US20080263890A1 (en) * | 2005-04-04 | 2008-10-30 | Edmond-Pierre Picard | Wood Heat Treating Method, a Plant for Carrying Out Said Method and Heat Treated Wood |
-
2013
- 2013-01-25 CN CN201310028493.5A patent/CN103112070B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046114A (en) * | 1989-04-08 | 1990-10-17 | 刘清水 | Pseudo-classic treating technology for wooden article surface |
| US5452508A (en) * | 1993-04-14 | 1995-09-26 | Wu; Michael | Method for manufacturing surface three-dimensional figures on magnetic material |
| JPH08112858A (en) * | 1994-10-17 | 1996-05-07 | Taiho Kogyo Kk | Method and apparatus for manufacturing resin board |
| CN1131617A (en) * | 1995-03-20 | 1996-09-25 | 何天龙 | Method for making stereo-pattern on flat-faced wood |
| CN1140647A (en) * | 1995-07-14 | 1997-01-22 | 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 |
| JP2005205618A (en) * | 2004-01-20 | 2005-08-04 | Olympus Corp | Wood processing method and processed product |
| US20080263890A1 (en) * | 2005-04-04 | 2008-10-30 | Edmond-Pierre Picard | Wood Heat Treating Method, a Plant for Carrying Out Said Method and Heat Treated Wood |
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| CN103112070B (en) | 2014-12-03 |
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