CN105619763B - A kind of curved surface wood-plastic board molding device - Google Patents
A kind of curved surface wood-plastic board molding device Download PDFInfo
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- CN105619763B CN105619763B CN201610089169.8A CN201610089169A CN105619763B CN 105619763 B CN105619763 B CN 105619763B CN 201610089169 A CN201610089169 A CN 201610089169A CN 105619763 B CN105619763 B CN 105619763B
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- pressing plate
- molding
- wood
- curved surface
- frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/261—Handling means, e.g. transfer means, feeding means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/42—Heating or cooling
- B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/46—Measuring, controlling or regulating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a kind of curved surface wood-plastic board molding device, including molding base, preheating frame, hot plate case, wood moulding substrate, molding frame, molding hydraulic station, curved surface pressing plate, hydraulic cylinder, pressing plate guide rod, controller, displacement transducer；The molding base is provided with preheating frame, molding frame, raise-lower hydraulic station, molding hydraulic station and deep fat station；It is parallel on the preheating frame to be equipped with multigroup hot plate case, it is provided with board slot and wood moulding substrate in the upper heat cover；The curved surface pressing plate top and hydraulic cylinder piston are spirally connected fixation；Displacement transducer is each equipped with rear side of every piece of curved surface pressing plate, the molding frame sidepiece is provided with controller, and the controller is connected with the hydraulic valve bank in temperature sensor, displacement transducer, raise-lower hydraulic station, the hydraulic valve bank electric signal on molding hydraulic station；The present invention is molded into curved surface Wood plastic boards using wood moulding basal plate preheating, good weatherability, and linear expansion coefficient is low；It can realize that arbitrary surface is molded, solve the problems, such as traditional timber curved surface poor performance.
Description
Technical field
The present invention relates to a kind of wood-plastic board process technology apparatus field, more particularly to a kind of curved surface wood-plastic board molding device.
Background technology
With the reduction of the forest reserves, global wood supply amount is insufficient, the propulsion of urbanization and carrying for people's living standard
Height, building trade and furniture industry are gradually lifted for the demand of wave-shaped plate and curved surface sheet material, and raw by high-quality pure wood
Processing curve sheet material is produced, the huge waste of resource, the low deficiency of poor dimensional stability, utilization rate can be caused, therefore research and develop wood moulding
Curved surface sheet material, the pressure to domestic wildwood timber resources demand is reduced, it is significant.
In the prior art, in the extrusion of wood plastic product, product is moved along a straight line along the extrusion direction of extruder,
The product of extrusion can only be rectilinear direction sizing, and after part cooling sizing, product is difficult, in addition can not bending, which limits
The actual use scope of Wood plastic boards, it can not be selected needing the place of curved surface Wood plastic boards；After being needed during flat board wood moulding
Phase secondary operation, wastes time and energy；In use, because the coefficient of expansion between various materials is different, storeroom meeting is caused
The phenomenon of crack and the cracking separation of different materials contact point occurs；The defects of temperature tolerance is poor, drying shrinkage bulking, anisotropy, warpage；
Pure timber easy firing cost is high, secondary operation be present, and cost of labor is high；Solid wood furniture customized, surface must do paint processing, meeting
There is formaldehyde not environmentally.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of curved surface wood-plastic board molding device, in the prior art
Deficiency, manufacture wood moulding planar substrates by being coextruded mode using composite and weatherable materials, design curved die press fitting is matched somebody with somebody,
Wood moulding substrate hot pressing is shaped into as the song of curved surface Wood plastic boards, in process of production solution wood moulding substrate by deep fat preheating
Face, wave, heterotype profiled sheet production and processing problem, solve the problems, such as timber brush paint, baking vanish by weather-proof coextruded layer, while
Solve the problems, such as timber outdoor weather resistance difference, the linear expansion coefficient of plastics in itself is reduced by composite, client can be pressed
Requirement provide different curve, waveform Wood plastic boards simultaneously can also solve the unicity of color.
To reach above-mentioned purpose, technical scheme is as follows：A kind of curved surface wood-plastic board molding device, including molding bottom
Seat, preheating frame, deep fat station, raise-lower hydraulic station, hot plate case, deep fat interface, wood moulding substrate, upper hot cover, lower hot supporting plate, be molded frame,
Hydraulic station, top-surface camber pressing plate, lower surface camber pressing plate, hydraulic cylinder, pressing plate guide rod, controller, displacement transducer are molded, its feature exists
In：
The preheating frame and molding frame of steel construction are fixedly installed on the molding base, the preheating frame bottom position is set
There is raise-lower hydraulic station, the molding frame bottom position is provided with molding hydraulic station, and the molding hydraulic station is provided with multigroup, difference
The hydraulic cylinder on top and the hydraulic cylinder of bottom are controlled, and drives top-surface camber pressing plate and lower surface camber presser motion；By the preheating frame
It is provided with deep fat station on the molding base of side, parallel on the preheating frame to be equipped with multigroup hot plate case, the hot plate case includes upper
Heat cover and lower hot supporting plate, the upper heat cover and lower hot pallet side are provided with deep fat interface, the deep fat interface by oil pipe with
Deep fat station connects, by the oil pump on deep fat station by hot oil transfer to upper heat cover and lower hot supporting plate；The upper heat cover and lower heat support
Plate seals against each other fastening and is integrated, and is provided with board slot in the upper heat cover, wood moulding substrate is filled with the board slot；The hot plate
Case is lifted with preheating frame by siding track by hydraulic control, and multigroup hot plate case can open respectively, wood moulding basal plate preheating therein
After reaching design temperature, it is sent to by push rod transfer between the curved surface pressing plate on molding frame, the curved surface pressing plate includes multiple parallel
The top-surface camber pressing plate and lower surface camber pressing plate of setting, the curved surface pressing plate side are connected with pressing plate guide rod by slide rail, the curved surface
Pressing plate top and hydraulic cylinder piston are spirally connected fixation, and the hydraulic cylinder is fixedly connected with being molded frame；The hydraulic cylinder and molding hydraulic pressure
Stand and connected by oil pipe, the molding hydraulic station by high-pressure oil pump driving hydraulic cylinder and takes top-surface camber pressing plate or lower surface camber pressure to
Plate carries out coining operation, the top-surface camber pressing plate and the setting symmetrical above and below of lower surface camber pressing plate, the top-surface camber pressure to wood moulding substrate
The molding head of circular arc is provided with plate and lower surface camber pressing plate, the molding head applies above wood moulding substrate and separately below
Pressure, the wood moulding substrate are turned under the molding of top-surface camber pressing plate and lower surface camber pressing plate by plane wood moulding substrate conversion shape
Curved surface wood-plastic board；Displacement transducer is each equipped with rear side of every piece of curved surface pressing plate, the molding frame sidepiece is fixedly installed controller,
The controller and temperature sensor, displacement transducer, the hydraulic valve bank in raise-lower hydraulic station, the hydraulic valve on molding hydraulic station
Group electric signal is connected, and molding control program is preset in the controller, is molded parameter by setting, be may set and control
Curved surface pressing plate and lower song add position into pressing plate to the heat of wood moulding substrate, so as to go out curved surface wood moulding to wood moulding substrate hot pressing patterning process
Plate.
Electric heater is provided with the top-surface camber pressing plate and lower surface camber pressing plate, the electric heater is connected with controller, and by
Controller regulates and controls the molding head temperature on the top-surface camber pressing plate and lower surface camber pressing plate.
The wood moulding substrate and curved surface wood-plastic board include composite layer and weather-proof coextruded layer, and the weather-proof coextruded layer is laminating
In two face up and down of composite layer；Thickness ratio between the weather-proof coextruded layer and composite layer is：1：(3—20)；Institute
The thickness range for stating wood moulding substrate is 3mm -50mm.
The maximum bend angle scope of the curved surface wood-plastic board is 5 degree -150 degree.
The wood moulding substrate is using composite and weatherable materials coextrusion processing mode integral molding；Described is weather-proof
Coextruded layer is itself material or process modification with superelevation weatherability with high-weatherability material；Described composite is
Low linear expansion coefficient material filled with nanoscale native cellulose, the composite by plastics, nanoscale native cellulose,
Calcium powder, stabilizer, toughener, foaming agent, foaming control agent, lubricant, modifying agent, toner composition；The nanoscale is naturally fine
Dimension element includes but is not limited to wood powder, powder of straw, flaxen fiber, rice husk cellulose；Macromolecule composite wood in the composite layer
Addition scope is expected between 30% -60%, and the length of the nanoscale native cellulose is in the range of 10nm -950nm；Institute
The adding proportion of nanoscale native cellulose is stated between 5%-70%；The weather-proof coextruded layer is polyethylene, polyvinyl chloride, gathered
One or more kinds of mixtures in propylene, polystyrene, acrylic ester copolymerization body；The weather-proof coextruded layer is in formula
Between proportion is 10% -90%.
The technical process of the wood moulding substrate is as follows：It is processed using co-extrusion modling mode, used co-extrusion is set
It is standby to be：Main frame is the double extruders of cone, and subsidiary engine is single screw extrusion machine, the Process temperature ranges control of coextrusion 140 DEG C-
Between 200 DEG C.
The present invention operation principle be：1st, composite and weatherable materials are processed into by wood using coextrusion processing mode
Substrate, style and color wood grain diversification are moulded, wood moulding substrate is loaded into hot plate case and preheated, and by controller to hot plate case
Temperature be controlled；2nd, under the monitoring of controller, after the wood moulding substrate in hot plate case reaches predetermined temperature, lifting is passed through
Hydraulic pressure stand control hot plate case position, hot plate case is opened, and preheated wood moulding substrate is sent to the upper of molding frame by push rod
Between curved surface pressing plate and lower surface camber pressing plate；3rd, hydraulic cylinder is controlled and with moving surface pressing plate by controller, according to preset molding program
Coining operation is carried out to wood moulding substrate；There is the macromolecule material of lipophilic group and hydrophilic radical simultaneously in the strand of composite
Material, composite layer and weather-proof coextruded layer integral type are coextruded, composite layer is the macromolecule containing lipophilic group in itself
Material, and inorganic material is hydrophilic in itself, used tack coat has both characteristics simultaneously, plays the work of bridge
With；Surface Parameters are set by molding device, can prepare and arbitrarily meet attractive in appearance and demand curved slab style, can not only carry
The whole structure of high product, moreover it is possible to reduce batch machining cost.
Pass through above-mentioned technical proposal, the beneficial effect of technical solution of the present invention are：Led to using composite and weatherable materials
Cross coextrusion mode and manufacture wood moulding planar substrates, design curved die press fitting is matched somebody with somebody, preheated by deep fat by wood moulding substrate thermocompression forming
As curved surface Wood plastic boards, solve curved surface, wave, heterotype profiled sheet the production and processing problem of wood moulding substrate in process of production, lead to
Cross weather-proof coextruded layer and solve the problems, such as timber brush paint, baking vanish, while also solve the problems, such as timber outdoor weather resistance difference, lead to
Crossing composite reduces the linear expansion coefficient of plastics in itself, can provide different curve, waveform wood-plastic board by the requirement of client
Material can also solve the unicity of color simultaneously；Curved surface wood-plastic products can reach arbitrary surface in moulding, so as to solve
Currently on the market the problem of traditional timber curved surface poor performance；Curved surface Wood plastic boards outer surface uses the modeling itself with super-weathering resistance
Material or by modified high durable material, the slow or even non-fading time limit about in 10 years and more than, and can be carried out on surface
Color adjusts and wood grain hooks color, and it is single to solve product colour, the problem of outdoor weather resistance difference.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of curved surface wood-plastic board molding device side view schematic diagram disclosed in the embodiment of the present invention；
Fig. 2 is a kind of curved surface wood-plastic board molding device front view schematic diagram disclosed in the embodiment of the present invention.
Corresponding component title of the numeral represented by with letter in figure：
1. being molded base 2. preheats the raise-lower hydraulic station of 3. deep fat station of frame 4.
5. heat cover on the wood moulding substrate 8. of 6. deep fat interface of hot plate case 7.
9. hot supporting plate 10. is molded frame 11. and is molded the top-surface camber pressing plate of hydraulic station 12. under
13. the controller of 14. hydraulic cylinder of lower surface camber pressing plate, 15. pressing plate guide rod 16.
17. displacement transducer
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
According to Fig. 1 and Fig. 2, the invention provides a kind of curved surface wood-plastic board molding device, including molding base 1, preheating frame
2nd, deep fat station 3, raise-lower hydraulic station 4, hot plate case 5, deep fat interface 6, wood moulding substrate 7, it is upper heat cover 8, lower hot supporting plate 9, molding frame 10,
It is molded hydraulic station 11, top-surface camber pressing plate 12, lower surface camber pressing plate 13, hydraulic cylinder 14, pressing plate guide rod 15, controller 16, displacement sensing
Device 17.
The preheating frame 2 and molding frame 10 of steel construction, the preheating frame 2 bottom position are fixedly installed on the molding base 1
Install and be equipped with raise-lower hydraulic station 4, the molding bottom position of frame 10 is provided with molding hydraulic station 11, and the molding hydraulic station 11 is set
It is equipped with multigroup, the hydraulic cylinder 14 on control top and the hydraulic cylinder 14 of bottom, and drive top-surface camber pressing plate 12 and lower surface camber pressure respectively
Plate 13 moves；Be provided with deep fat station 3 on the molding base 1 of the preheating side of frame 2, on the preheating frame 2 it is parallel be equipped with it is more
Group hot plate case 5, the hot plate case 5 include upper heat and cover 8 and lower hot supporting plate 9, and the upper heat cover 8 and the lower side of hot supporting plate 9 are provided with
Deep fat interface 6, the deep fat interface 6 are connected by oil pipe with deep fat station 3, by the oil pump on deep fat station 3 by hot oil transfer to upper
In heat cover 8 and lower hot supporting plate 9；The upper heat cover 8 and lower hot supporting plate 9 seal against each other fastening and are integrated, and are set in the upper heat cover 8
There is board slot, wood moulding substrate 7 is filled with the board slot；The hot plate case 5 is lifted with preheating frame 2 by siding track by hydraulic control,
Multigroup hot plate case 5 can be opened respectively, and after the preheating of wood moulding substrate 7 therein reaches design temperature, mould is sent to by push rod transfer
Between upper and lower curved surface pressing plate (12,13) in pressure rack 10, the curved surface pressing plate includes multiple top-surface camber pressing plates 12 be arrangeding in parallel
With lower surface camber pressing plate 13, the curved surface pressing plate side is connected with pressing plate guide rod 15 by slide rail, the curved surface pressing plate top and liquid
The piston of cylinder pressure 14 is spirally connected fixation, and the hydraulic cylinder 14 is fixedly connected with 10 framves of molding；The hydraulic cylinder 14 and molding hydraulic station 11
Connected by oil pipe, the molding hydraulic station 11 by high-pressure oil pump driving hydraulic cylinder 14 and takes top-surface camber pressing plate 12 or lower song to
Face pressure plate 13 carries out coining operation, the top-surface camber pressing plate 12 and 13 setting symmetrical above and below of lower surface camber pressing plate, institute to wood moulding substrate 7
The molding head that circular arc is provided with top-surface camber pressing plate 12 and lower surface camber pressing plate 13 is stated, the head that is molded is from the upper of wood moulding substrate 7
Face and apply pressure separately below, the wood moulding substrate 7 is under the molding of top-surface camber pressing plate 12 and lower surface camber pressing plate 13, by plane
Wood moulding substrate 7, which changes shape, turns into curved surface wood-plastic board；Displacement transducer 17, the molding are each equipped with rear side of every piece of curved surface pressing plate
The sidepiece of frame 10 is fixedly installed controller 16, the controller 16 and temperature sensor, displacement transducer 17, raise-lower hydraulic station 4
In hydraulic valve bank, the hydraulic valve bank electric signal connection on molding hydraulic station 11, molding control is preset in the controller 16
Processing procedure sequence, parameter is molded by setting, may set and control top-surface camber pressing plate 12 and the lower bent heat into pressing plate 13 to wood moulding substrate 7
Add position, so as to process curved surface wood-plastic board to the thermocompression forming of wood moulding substrate 7.
Electric heater is provided with the top-surface camber pressing plate 12 and lower surface camber pressing plate 13, the electric heater connects with controller 16
Connect, and the molding head temperature on the top-surface camber pressing plate 12 and lower surface camber pressing plate 13 is regulated and controled by controller 16.
The wood moulding substrate 7 and curved surface wood-plastic board include composite layer and weather-proof coextruded layer, and the weather-proof coextruded layer covers
Close in two face up and down of composite layer；Thickness ratio between the weather-proof coextruded layer and composite layer is：1：(5—15)；
The thickness range of the wood moulding substrate 7 is 3mm -30mm.
The maximum bend angle scope of the curved surface wood-plastic board is 5 degree -120 degree.
The wood moulding substrate 7 is using composite and weatherable materials coextrusion processing mode integral molding；Described is resistance to
Time coextruded layer is itself material or process modification with superelevation weatherability with high-weatherability material；Described composite
For the low linear expansion coefficient material filled with nanoscale native cellulose, the composite is by plastics, nanoscale natural fiber
Element, calcium powder, stabilizer, toughener, foaming agent, foaming control agent, lubricant, modifying agent, toner composition；The nanoscale is natural
Cellulose includes but is not limited to wood powder, powder of straw, flaxen fiber, rice husk cellulose；Macromolecule in the composite layer is compound
Material addition scope is between 30% -60%, and the length of the nanoscale native cellulose is in the range of 10nm -950nm；
The adding proportion of the nanoscale native cellulose is between 5%-70%；The weather-proof coextruded layer be polyethylene, polyvinyl chloride,
One or more kinds of mixtures in polypropylene, polystyrene, acrylic ester copolymerization body；The weather-proof coextruded layer is in formula
Proportion be 10% -90% between.
The technical process of the wood moulding substrate 7 is as follows：It is processed using co-extrusion modling mode, used co-extrusion is set
It is standby to be：Main frame is the double extruders of cone, and subsidiary engine is single screw extrusion machine, the Process temperature ranges control of coextrusion 140 DEG C-
Between 200 DEG C.
The present invention specific implementation operating procedure be：
1st, composite and weatherable materials are processed into by wood moulding substrate 7, style and color using coextrusion processing mode
Wood grain diversification, wood moulding substrate 7 is loaded into hot plate case 5 and preheated, and the temperature of hot plate case 5 is controlled by controller 16
System；
2nd, under the monitoring of controller 16, after the wood moulding substrate 7 in hot plate case 5 reaches predetermined temperature, by lifting liquid
The position of 4 control hot plate case of pressure station 5, hot plate case 5 is opened, and preheated wood moulding substrate 7 is sent to molding frame 10 by push rod
Top-surface camber pressing plate 12 and lower surface camber pressing plate 13 between；
3rd, hydraulic cylinder 14 is controlled and with moving surface pressing plate by controller 16, wood moulding substrate 7 entered according to preset molding program
Row coining operation；There is the high polymer material of lipophilic group and hydrophilic radical simultaneously, by composite wood in the strand of composite
The bed of material and the coextrusion of weather-proof coextruded layer integral type, composite layer is the high polymer material containing lipophilic group in itself, and inorganic
Material is hydrophilic in itself, and used tack coat has both characteristics simultaneously, plays bridge beam action；Filled by molding
Install and determine Surface Parameters, can prepare and arbitrarily meet attractive in appearance and demand curved slab style, can not only improve the entirety of product
Effect, moreover it is possible to reduce batch machining cost；
4th, the curved surface wood-plastic board uses chief component of the nanometer native cellulose as material, due to nano material
Linear expansion coefficient it is low, by the regulation of formula, the linear expansion coefficient of whole Wood-plastic profiles can be controlled 5 × 10-6/℃-
20×10-6/ DEG C, and the linear expansion coefficient of traditional igelite is at 70 × 10-6/ DEG C；
5th, using the plastics itself with super-weathering resistance or by modified high durable material existed to improve section bar
Outdoor usability；Traditional polyvinyl chloride is due to its own molecular chain structure so that and its weatherability out of doors is poor,
Because polyvinyl chloride after ultraviolet light, can decomposite certain hydrogen chloride gas, such gas is run into air
Hydrone or the shower by rainwater, generate hypochlorous acid, and this material has very strong Bleachability, therefore we commercially see
Such product arrived is more based on white；Meanwhile as solid wood class product, it has the shortcomings that timber, including goes mouldy, cracking,
Fade, but paint is handled, and has formaldehyde, not environmentally；And use the plastics itself with super-weathering resistance or pass through modification
High durable material improves its outdoor weatherability, the slow or even non-fading time limit can reach 10 years and more than, and can be in table
Face carries out color matching and wood grain hooks color, and it is single to solve product colour, the problem of outdoor weather resistance difference；
6th, curved surface wood-plastic board or the processing of waveform Wood plastic boards reduce secondary operation when section bar uses outside indoors；
Sizing can be directly directly molded according to design colours, moulding and decorative pattern, without paint processing during use.
By above-mentioned specific embodiment, the beneficial effects of the invention are as follows：Pass through co-extrusion using composite and weatherable materials
Go out mode and manufacture wood moulding planar substrates, design curved die press fitting is matched somebody with somebody, preheated by deep fat and wood moulding substrate hot pressing is shaped into as song
Face Wood plastic boards, solves curved surface, wave, heterotype profiled sheet the production and processing problem of wood moulding substrate in process of production, by weather-proof
Coextruded layer solves the problems, such as timber brush paint, baking vanish, while also solves the problems, such as timber outdoor weather resistance difference, by compound
Material reduces the linear expansion coefficient of plastics in itself, can provide different curve, waveform Wood plastic boards simultaneously by the requirement of client
Can also solve the unicity of color；Curved surface wood-plastic products can reach arbitrary surface in moulding, so as to solve present city
On field the problem of traditional timber curved surface poor performance；Curved surface Wood plastic boards outer surface use itself have super-weathering resistance plastics or
By modified high durable material, the slow or even non-fading time limit about in 10 years and more than, and can surface carry out color tune
Whole and wood grain hooks color, and it is single to solve product colour, the problem of outdoor weather resistance difference.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (6)
1. a kind of curved surface wood-plastic board molding device, it is characterised in that including molding base, preheating frame, deep fat station, raise-lower hydraulic
Stand, hot plate case, deep fat interface, wood moulding substrate, upper hot cover, lower hot supporting plate, molding frame, be molded hydraulic station, top-surface camber pressing plate, lower song
Face pressure plate, hydraulic cylinder, pressing plate guide rod, controller, displacement transducer；The preheating of steel construction is fixedly installed on the molding base
Frame and molding frame, the preheating frame bottom position are provided with raise-lower hydraulic station, and the molding frame bottom position is provided with molding liquid
Pressure station, the molding hydraulic station are provided with multigroup, the hydraulic cylinder on control top and the hydraulic cylinder of bottom, and drive top-surface camber respectively
Pressing plate and lower surface camber presser motion；Deep fat station is provided with the molding base of the preheating frame side, it is parallel on the preheating frame
Multigroup hot plate case is equipped with, the hot plate case includes upper heat cover and lower hot supporting plate, and the upper heat cover and lower hot pallet side are set
There is deep fat interface, the deep fat interface is connected by oil pipe with deep fat station, by the oil pump on deep fat station by hot oil transfer to upper heat
In cover and lower hot supporting plate；The upper heat cover and lower hot supporting plate seal against each other fastening and are integrated, and board slot is provided with the upper heat cover,
Wood moulding substrate is filled with the board slot；The hot plate case is lifted with preheating frame by siding track by hydraulic control, multigroup heat
Plate case can be opened respectively, and after wood moulding basal plate preheating therein reaches design temperature, the curved surface on molding frame is sent to by push rod transfer
Between pressing plate, the curved surface pressing plate includes multiple top-surface camber pressing plates and lower surface camber pressing plate be arrangeding in parallel, the curved surface pressing plate side
Face is connected with pressing plate guide rod by slide rail, and the curved surface pressing plate top and hydraulic cylinder piston are spirally connected fixation, the hydraulic cylinder and mould
Pressure rack is fixedly connected；The hydraulic cylinder is connected with molding hydraulic station by oil pipe, and the molding hydraulic station is driven by high-pressure oil pump
Hydrodynamic cylinder pressure simultaneously takes top-surface camber pressing plate or lower surface camber pressing plate to wood moulding substrate progress coining operation, and the top-surface camber pressing plate is with
The setting symmetrical above and below of curved surface pressing plate, the molding head of circular arc, the mould are provided with the top-surface camber pressing plate and lower surface camber pressing plate
Pressure head applies pressure above wood moulding substrate and separately below, and the wood moulding substrate is in top-surface camber pressing plate and lower surface camber pressing plate
Under molding, curved surface wood-plastic board is turned into by plane wood moulding substrate conversion shape；Displacement sensing is each equipped with rear side of every piece of curved surface pressing plate
Device, the molding frame sidepiece are fixedly installed controller, the controller and temperature sensor, displacement transducer, raise-lower hydraulic
The hydraulic valve bank stood, the hydraulic valve bank electric signal being molded on hydraulic station are connected, and molding control is preset in the controller
Program, parameter is molded by setting, may set and control top-surface camber pressing plate and lower song adds position into pressing plate to the heat of wood moulding substrate,
So as to go out curved surface wood-plastic board to wood moulding substrate hot pressing patterning process.
2. a kind of curved surface wood-plastic board molding device according to claim 1, it is characterised in that the top-surface camber pressing plate is with
Electric heater is provided with curved surface pressing plate, the electric heater is connected with controller, and by controller regulate and control the top-surface camber pressing plate and
Molding head temperature on lower surface camber pressing plate.
3. a kind of curved surface wood-plastic board molding device according to claim 1, it is characterised in that the wood moulding substrate and curved surface
Wood-plastic board includes composite layer and weather-proof coextruded layer, and the weather-proof coextruded layer is laminating in two face up and down of composite layer；Institute
The thickness ratio stated between weather-proof coextruded layer and composite layer is：1：(3—20)；The thickness range of the wood moulding substrate is
3mm—50mm。
4. a kind of curved surface wood-plastic board molding device according to claim 1, it is characterised in that the curved surface wood-plastic board is most
Macrobending angular range is 5 degree -150 degree.
5. a kind of curved surface wood-plastic board molding device according to claim 1, it is characterised in that the wood moulding substrate is using multiple
Condensation material and weatherable materials coextrusion processing mode integral molding；Described weather-proof coextruded layer is itself to have superelevation weatherability
Material or there is high-weatherability material by modified；Described composite is filled with the low of nanoscale native cellulose
Linear expansion coefficient material, the composite by plastics, nanoscale native cellulose, calcium powder, stabilizer, toughener, foaming agent,
Foaming control agent, lubricant, modifying agent, toner composition；The nanoscale native cellulose includes but is not limited to wood powder, stalk
Powder, flaxen fiber, rice husk cellulose；Polymer composite addition scope in the composite layer 30% -60% it
Between, the length of the nanoscale native cellulose is in the range of 10nm -950nm；The addition ratio of the nanoscale native cellulose
Example is between 5%-70%；The weather-proof coextruded layer is that polyethylene, polyvinyl chloride, polypropylene, polystyrene, esters of acrylic acid are common
One or more kinds of mixtures in aggressiveness；Between proportion of the weather-proof coextruded layer in formula is 10% -90%.
A kind of 6. curved surface wood-plastic board molding device according to claim 1, it is characterised in that the technique of the wood moulding substrate
Process is as follows：It is processed using co-extrusion modling mode, used coextrusion is：Main frame is to bore double extruders, subsidiary engine
For single screw extrusion machine, the Process temperature ranges of coextrusion are controlled between 140 DEG C -200 DEG C.
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| CN201610089169.8A CN105619763B (en) | 2016-02-17 | 2016-02-17 | A kind of curved surface wood-plastic board molding device |
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| CN201610089169.8A CN105619763B (en) | 2016-02-17 | 2016-02-17 | A kind of curved surface wood-plastic board molding device |
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| CN105619763A CN105619763A (en) | 2016-06-01 |
| CN105619763B true CN105619763B (en) | 2018-01-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114347416B (en) * | 2022-02-08 | 2022-10-14 | 安徽戴家工艺有限公司 | Wood-plastic furniture board processing equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6046207A (en) * | 1983-08-24 | 1985-03-13 | Kasai Kogyo Co Ltd | Press forming process of wooden fiber board |
| DE3819321A1 (en) * | 1988-06-07 | 1989-12-14 | Altendorf Wilhelm Gmbh Co Kg | WORKSHOP TABLE FOR A PANEL SAWING MACHINE |
| CN101879741B (en) * | 2010-06-24 | 2012-05-23 | 广西福园剑麻股份有限公司 | Wood-plastic mould pressing production line |
| CN204263293U (en) * | 2014-10-21 | 2015-04-15 | 上海步精木工机械制造有限公司 | A kind of press plate mechanism for the quick press of bent wood |
| CN205498041U (en) * | 2016-02-17 | 2016-08-24 | 苏州洲联材料科技有限公司 | Board molding device is moulded to curved surface wood |
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