CN109878100A - A kind of outer lamination of mould prepares the device and method of wood plastic composite - Google Patents
A kind of outer lamination of mould prepares the device and method of wood plastic composite Download PDFInfo
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- CN109878100A CN109878100A CN201910184000.4A CN201910184000A CN109878100A CN 109878100 A CN109878100 A CN 109878100A CN 201910184000 A CN201910184000 A CN 201910184000A CN 109878100 A CN109878100 A CN 109878100A
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Abstract
The present invention discloses the device and method that a kind of outer lamination of mould prepares wood plastic composite, and device mainly includes resin plasticization component, the outer laminated module of die head component, wood powder pneumatic transmission component, mould is blended, cuts out component, conveying assembly, molding roll assembly, push rod, tiltedly arrange preforming roller, control system etc..Resin plasticization component is connect with blending die head component respectively with wood powder pneumatic transmission component, and die head component is blended and is followed successively by the outer laminated module of mould later, cuts out component, conveying assembly, molding roll assembly.The outer laminating method of mould of the present invention is that the materials such as wood powder, lignin, wood-fibred are blown into the gas passage being blended on the inside of die head component in the form of gas conveying wood powder pneumatic transmission component, wood powder etc. enters the inside of tubing or membrane material under the action of the flowing of gas and centrifugal disc centrifugal force, and is attached to the inner surface of tubing or membrane material；Inner surface is pasted with the tubing of the materials such as wood powder or membrane material enters the outer laminated module lamination of mould into the lamination wood moulding composite sheet with one fixed width.
Description
Technical field
The present invention relates to field of polymer composite material, and in particular to a kind of preparation facilities of wood plastic composite and side
Method.
Background technique
Wood plastic composite is a kind of new green environment protection material, also known as environmental protection wood, ecological wooden.It is widely used in outdoor ground
Plate, garden landscape, interior decoration, abatvoix, freight pallet etc..
Wood model compound products mostly use high speed premix, are granulated at present, then extrusion or injection molding production technology, but
It is the two big difficult points in the presence of plasticizing uniformity and interface compatibility.Due to the resin matrix of wood plastic composite mainly use it is highly dense
The thermoplastic resins such as polyethylene, polyvinyl chloride, polypropylene are spent, plasticization temperature is higher, to reach preferable uniformity, makes in mixing
Made wood-fibred that decomposed occur even disconnected by high temperature and stronger shearing force for a long time during grain and extrusion molding
It splits, is reduced so as to cause the mechanical property of product, then need to increase ratio shared by plastics to improve intensity, shared by wood-fibred
Specific gravity is generally below 50%, so as to cause the rising of material cost.In addition, being coextruded wood plastic composite at present, formed
Journey need to be completed in two molds, first form and coat afterwards, cause sandwich layer and surface layer interface bond strength poor, and forming process needs
Two equipment, higher to the requirement on machining accuracy of screw rod, expense cost is higher, and device structure is complicated.
Chinese patent " a kind of formula of wood plastic composite and its preparation side of existing Patent No. 201110171691.8
Method " a kind of wood and plastic composite material formula is disclosed, then reshaping is mixed through kneader with wood powder by room temperature liquid resin, is kept away
Exempt from the high temperature high shear mixing of screw rod, but need special matrix resin glue, is not suitable for common polyethylene, polypropylene
Equal materials." a kind of co-extrusion is for high interfacial bonding strength wood and plastic composite for the Chinese patent of Patent No. 201310021367.7
The method of material " a kind of method for being coextruded wood plastic composite is disclosed, two runners are opened up in same mold and are realized
Confluence makes sandwich layer and surface layer material form co-extrusion interface layer under molten condition, the effect of mutual pressure, although this method makes to set
Rouge coats in the molten state with wood fiber material, but the actual effect of the interface compatibility of both incompatible materials is still
Need to be investigated.
Summary of the invention
The object of the present invention is to provide it is a kind of be uniformly dispersed, lamination prepares wood and plastic composite outside the mould that interface compatibility is excellent
The method and apparatus of material.
Technical solution to achieve the above object is, a kind of device that the outer lamination of mould prepares wood plastic composite mainly includes
Resin plasticization component is blended the outer laminated module of die head component, wood powder pneumatic transmission component, mould, cuts out component, conveying assembly, forming roller
Component, tiltedly arranges the composition such as preforming roller, control system at push rod.Resin plasticization component and wood powder pneumatic transmission component respectively with die head is blended
Component connection is blended die head component and is followed successively by the outer laminated module of mould later, cuts out component, conveying assembly, molding roll assembly.Its
In, the outer laminated module of mould is made of stack, two left lamination traction rollers, two right lamination traction rollers etc.；It sets and adds in stack
Thermal regulates and controls stack superficial velocity and temperature by control system real-time online；Left lamination traction roller and the right side are folded
Layer traction roller is located at the two sides of the wood plastics composite media sheet by stack outflow, two left lamination traction rollers (or right lamination
Traction roller) successively alternately in traction working condition and waiting traction state.Push rod is located on conveying assembly, push sheet material into
Enter tiltedly row's preforming roller.Tiltedly row's preforming roller realizes the transition of sheet material to fine sheet at the pairs of roller of ladder by distance.All
The roller that invention is related to is interior to set heating device, such as stack, lamination traction roller, tiltedly row's preforming roller, provides heat source for compound material,
The temperature level of each roller requires setting according to the technique on different station by control system.
Die head component is blended by air outlet passage, outlet bar, powder baffle, centrifugal disc, centrifugal pan driving assembly, fastening group
The composition such as part.Wherein, outlet bar and air outlet passage fasten, and connection type has and is not limited to the modes such as be threadedly coupled, be interference fitted；
Powder baffle, centrifugal disc, centrifugal pan driving assembly, fastening assembly are sequentially sleeved on outlet bar, except centrifugal disc and outlet bar
Outside for clearance fit, other parts are fastened with outlet bar, and connection type has and is not limited to the side such as be threadedly coupled, be interference fitted
Formula.Powder baffle plays the gap for preventing the materials such as wood powder, lignin, wood-fibred from entering between centrifugal disc and outlet bar, shadow
Ring the rotation of centrifugal disc.Centrifugal disc be hollow disk, above middle opening be used to receive wood powder pneumatic transmission component to send wood
The materials such as powder, lignin, wood-fibred；Aperture is opened in circumference side, is used for the materials such as wood powder, lignin, wood-fibred from centrifugal disc
It throws away on the inside of tubing or membrane material.The effect of centrifugal disc is to provide centrifugal force for materials such as wood powder, lignin, wood-fibreds, is made
It can uniformly be attached on the inside of tubing or membrane material.Centrifugal pan driving assembly is used to provide power to centrifugal disc.Fastening assembly is used
It in limit and fixes, powder baffle, centrifugal disc, centrifugal pan driving assembly etc. is prevented to be detached from from outlet bar.
Using lamination outside a kind of mould of the present invention prepare the device of wood plastic composite the preparation method comprises the following steps:
The first step is plasticized the resins such as polyethylene, polypropylene by resin plasticization component, then by the way that die head is blended
The exterior annular runner extruding pipe material or membrane material of component；
The materials such as wood powder, lignin, wood-fibred are blown by second step wood powder pneumatic transmission component in the form of gas conveying
The gas passage on the inside of die head component is blended, wood powder etc. enters pipe under the action of the flowing of gas and centrifugal disc centrifugal force
The inside of material or membrane material, and it is attached to the inner surface of tubing or membrane material；
Third step, inner surface is pasted with the tubing of the materials such as wood powder or membrane material enters the outer laminated module of mould, is rolling first
Wood plastics composite media sheet is formed under the heating squeezing action of roller, is then made in the traction of left lamination traction roller and right lamination traction roller
Under, lamination is at the lamination wood moulding composite sheet with one fixed width；
4th step, certain thickness lamination wood moulding composite sheet is tailored component and cuts, then in the conveying of conveying assembly
It is lower to enter the outer laminated module of next mould, repeat step 3；
5th step, after the lamination wood moulding composite sheet of laminated module outside secondary or multiple mould is cut by cutting out component,
It is transported to molding roll assembly via conveying assembly, forms final multilayer micro-nano lamination wood moulding composite sheet, and by cutting out component
Final multilayer micro-nano lamination Wood model compound products are cut into, can also travel further into the molding assemblies such as hot pressing die and prepare most
Whole product.
To realize that the further scheme of above-mentioned technical proposal is to choose the A material and B material that can react, then A is expected
It is blended in resin plasticization component with resin, the materials such as wood powder are blended with B material or are impregnated in B material solution, then
The resin being blended and processed wood powder are squeezed out by the above method, after being repeatedly laminated, make resin and wood powder
While contact, internal A material and B material are chemically reacted, and are formed the C material of coupling, are bonded to resin and wood powder,
To achieve the purpose that improve the interface compatibility of resin and wood powder.
The beneficial effects of the present invention are: solving sawdust, wood powder by the outer laminating method of mould and the method for A/B material reaction
Deng the interface cohesion problem with plastic resin, while the shear fracture of wood-fibred is avoided, and wood-fibred is divided in resin
Dissipate the preparation for uniformly realizing high-intensitive, inexpensive Wood model compound products.
Detailed description of the invention
Fig. 1 is the production line schematic diagram for the device that a kind of outer lamination of mould of the present invention prepares wood plastic composite；
Fig. 2 is the schematic diagram of the outer laminated module of mould for the device that a kind of outer lamination of mould of the present invention prepares wood plastic composite；
Fig. 3 is the blending die head assembly embodiment for the device that a kind of outer lamination of mould of the present invention prepares wood plastic composite.
In figure, 1. resin plasticization components, 2. are blended die head component, and 3. wood powder pneumatic transmission components, 4. wood powders, lignin, wood are fine
Materials, 5. tubing or the membrane materials such as dimension, the outer laminated module of 6. moulds, 7. cut out component, 8. conveying assemblies, 9. certain thickness laminations
Wood plastics composite sheet material, 10. pass through the lamination wood moulding composite sheet of the outer laminated module of secondary or multiple mould, and 11. form roll assemblies,
12. multilayer micro-nano lamination Wood model compound products, 13. air outlet passages, 14. outlet bars, 15. powder baffles, 16. centrifugal discs, 17.
Centrifugal pan driving assembly, 18. fastening assemblies.
Wherein, 6-1. stack, 6-2. wood plastics composite media sheet, the right lamination traction roller of 6-3., 6-4. one fixed width are folded
Layer wood plastics composite sheet material, the left lamination traction roller of 6-5., 11-1. push rod, 11-2. tiltedly arrange preforming roller.
Specific embodiment
A kind of outer lamination of mould of the present invention prepares the device of wood plastic composite, as shown in Figure 1, mainly including resin plasticization group
Part 1 is blended the outer laminated module 6 of die head component 2, wood powder pneumatic transmission component 3, mould, cuts out component 7, conveying assembly 8, molding roll assembly
11, push rod 11-1, the tiltedly composition such as row preforming roller 11-2, control system.Resin plasticization component 1 and wood powder pneumatic transmission component 3 respectively with
Die head component 2 is blended to connect, be blended after die head component 2 be followed successively by the outer laminated module 6 of mould, cut out component 7, conveying assembly 8, at
Type roll assembly 11.Wherein, the outer laminated module 6 of mould is by stack 6-1, two left lamination traction roller 6-5, two right lamination traction rollers
The composition such as 6-3, as shown in Figure 2；Heating device is set in stack 6-1, allows stack 6-1 superficial velocity and temperature by controlling
System real-time online regulation processed；Left lamination traction roller 6-5 and right lamination traction roller 6-3 is located to be flowed out by stack 6-1
The two sides of wood plastics composite media sheet 6-2, two left lamination traction roller 6-5 (or right lamination traction roller 6-3) are successively alternately in and lead
Draw working condition and waits traction state.Push rod 11-1 is located on conveying assembly 8, and sheet material is pushed to enter tiltedly row preforming roller 11-
2.Tiltedly row preforming roller 11-2 realizes the transition of sheet material to fine sheet at the pairs of roller of ladder by distance.It is all the present invention relates to
Roller in set heating device, as stack 6-1, right lamination traction roller 6-3, left lamination traction roller 6-5, tiltedly row preforming roller 11-2
Deng providing heat source for compound material, the temperature level of each roller requires setting according to the technique on different station by control system.
Die head component 2 is blended by air outlet passage 13, outlet bar 14, powder baffle 15, centrifugal disc 16, centrifugal pan driving group
The composition such as part 17, fastening assembly 18, as shown in Figure 3.Wherein, outlet bar 14 and air outlet passage 13 fasten, and connection type has and not
It is limited to the modes such as to be threadedly coupled, be interference fitted；Powder baffle 15, centrifugal disc 16, centrifugal pan driving assembly 17, fastening assembly 18
It is sequentially sleeved on outlet bar 14, in addition to centrifugal disc 16 and outlet bar 14 are clearance fit, other parts are tight with outlet bar 14
Gu connection type has and is not limited to the modes such as be threadedly coupled, be interference fitted.Powder baffle 15, which plays, prevents wood powder, lignin, wood
Fiber and other material 4 enters the gap between centrifugal disc 16 and outlet bar 14, influences the rotation of centrifugal disc 16.Centrifugal disc 16
For hollow disk, above the materials 4 such as the middle opening wood powder, lignin, the wood-fibred that are used to that wood powder pneumatic transmission component 3 is received to send；
Aperture is opened in circumference side, throws away from centrifugal disc 16 into tubing or membrane material 5 for the materials such as wood powder, lignin, wood-fibred 4
Side.The effect of centrifugal disc 16 is to provide centrifugal force for the materials such as wood powder, lignin, wood-fibred 4, can uniformly be attached to pipe
5 inside of material or membrane material.Centrifugal pan driving assembly 17 is used to provide power to centrifugal disc 16.Fastening assembly 18 is for limiting and admittedly
It is fixed, prevent powder baffle 15, centrifugal disc 16, centrifugal pan driving assembly 17 etc. to be detached from from outlet bar 14.
Method to realize above-mentioned technical proposal are as follows:
The first step is plasticized the resins such as polyethylene, polypropylene by resin plasticization component 1, then by the way that mould is blended
The exterior annular runner extruding pipe material or membrane material 5 of head assembly 2；
Second step is blown the materials such as wood powder, lignin, wood-fibred 4 wood powder pneumatic transmission component 3 in the form of gas conveying
Enter to be blended the gas passage of 2 inside of die head component, wood powder etc. is under the action of 16 centrifugal force of the flowing of gas and centrifugal disc
Into tubing or the inside of membrane material 5, and it is attached to the inner surface of tubing or membrane material 5；
Third step, inner surface is pasted with the tubing of the materials such as wood powder or membrane material 5 enters the outer laminated module 6 of mould, is pressing first
Prolong formation wood plastics composite media sheet 6-2 under the heating squeezing action of roller 6-1, is then led in left lamination traction roller 6-5 and right lamination
Under the draw of pick-up roll 6-3, lamination is at the lamination wood moulding composite sheet 6-4 with one fixed width；
4th step, certain thickness lamination wood moulding composite sheet 9 is tailored component 7 and cuts, then in the defeated of conveying assembly 8
It send lower into the outer laminated module 6 of next mould, repetition step 3；
5th step is cut by the lamination wood moulding composite sheet 10 of laminated module outside secondary or multiple mould by cutting out component 7
Afterwards, it is transported to molding roll assembly 11 via conveying assembly 8, forms final multilayer micro-nano lamination wood moulding composite sheet, and by cutting
It cuts out component 7 and cuts into final multilayer micro-nano lamination Wood model compound products 12, the moldings group such as hot pressing die can also be traveled further into
Final product is prepared in part.
To realize that the further scheme of above-mentioned technical proposal is to choose the A material and B material that can react, then A is expected
It is blended in resin plasticization component 1 with resin, the materials such as wood powder are blended with B material or are impregnated in B material solution, then
The resin being blended and wood powder are squeezed out by the way that die head component 2 is blended, make resin and wood powder while contacting, inside
A material and B material chemically react, form the C material of coupling, resin and wood powder bonded, with reach improve resin with it is wooden
The purpose of the interface compatibility of powder.
The above is specific equipment and process condition of the invention, and each figure is cooperated to be explained.But the present invention is not
It is confined to above-described specific equipment and technical process, it is any based on above-mentioned described for relevant device modifications or substitutions,
It is any based on the above-mentioned described local directed complete set for related process, as long as being belonged within the scope of realm of spirit of the invention
The present invention.
Claims (5)
1. the device that a kind of outer lamination of mould prepares wood plastic composite, it is characterised in that: mainly include resin plasticization component, be blended
The outer laminated module of die head component, wood powder pneumatic transmission component, mould cuts out component, conveying assembly, molding roll assembly, push rod, oblique row pressure piece
Roller and control system, resin plasticization component and wood powder pneumatic transmission component respectively with die head component is blended connect, blending die head component it
After be followed successively by the outer laminated module of mould, cut out component, conveying assembly, molding roll assembly；Wherein, the outer laminated module of mould by stack,
The composition such as two left lamination traction rollers, two right lamination traction rollers；Heating device is set in stack, so that stack superficial velocity
It can be regulated and controled by control system real-time online with temperature；Left lamination traction roller and right lamination traction roller are located at by stack stream
The two sides of wood plastics composite media sheet out, two left lamination traction rollers or right lamination traction roller are successively alternately in traction work shape
State and waiting traction state；Push rod is located on conveying assembly, push sheet material enter tiltedly row preforming roller, tiltedly arrange preforming roller by away from
Transition from the pairs of roller realization sheet material at ladder to fine sheet, stack, lamination traction roller, tiltedly row's preforming roller interior set adds
Thermal provides heat source for compound material, and the temperature level of each roller is required to set by control system according to the technique on different station
It sets.
2. the device that a kind of outer lamination of mould according to claim 1 prepares wood plastic composite, it is characterised in that: mould is blended
Head assembly is made of air outlet passage, outlet bar, powder baffle, centrifugal disc, centrifugal pan driving assembly and fastening assembly, wherein
Outlet bar and air outlet passage fasten, and powder baffle, centrifugal disc, centrifugal pan driving assembly, fastening assembly are sequentially sleeved in outlet bar
On, in addition to centrifugal disc and outlet bar are clearance fit, other parts are fastened with outlet bar, and powder baffle, which plays, prevents wood
The materials such as powder, lignin, wood-fibred enter the gap between centrifugal disc and outlet bar, influence the rotation of centrifugal disc.
3. the device that a kind of outer lamination of mould according to claim 2 prepares wood plastic composite, it is characterised in that: eccentric circle
Disk is hollow disk, above the middle opening materials such as wood powder, lignin, wood-fibred that are used to that wood powder pneumatic transmission component is received to send；
Aperture is opened in circumference side, throws away from centrifugal disc on the inside of tubing or membrane material for materials such as wood powder, lignin, wood-fibreds.
4. the method that a kind of outer lamination of mould prepares wood plastic composite, it is characterised in that:
The first step is plasticized resin by resin plasticization component, then passes through the exterior annular runner of blending die head component
Extruding pipe material or membrane material；
The materials such as wood powder, lignin, wood-fibred are blown into blending in the form of gas conveying wood powder pneumatic transmission component by second step
Gas passage on the inside of die head component, wood powder etc. under the action of the flowing of gas and centrifugal disc centrifugal force enter tubing or
The inside of membrane material, and it is attached to the inner surface of tubing or membrane material；
Third step, inner surface is pasted with the tubing of the materials such as wood powder or membrane material enters the outer laminated module of mould, first in stack
It heats and forms wood plastics composite media sheet under squeezing action, then in the draw of left lamination traction roller and right lamination traction roller
Under, lamination is at the lamination wood moulding composite sheet with one fixed width；
4th step, certain thickness lamination wood moulding composite sheet are tailored component and cut, then under the conveying of conveying assembly into
Enter the outer laminated module of next mould, repeats step 3；
5th step, after the lamination wood moulding composite sheet of laminated module outside secondary or multiple mould is cut by cutting out component, via
Conveying assembly is transported to molding roll assembly, forms final multilayer micro-nano lamination wood moulding composite sheet, and cut by cutting out component
At final multilayer micro-nano lamination Wood model compound products, it can also travel further into the molding assemblies such as hot pressing die and prepare final system
Product.
5. the method that a kind of outer lamination of mould according to claim 4 prepares wood plastic composite, it is characterised in that: original
On the basis of resin, the A material and B material that can be reacted are chosen, is then total to A material and resin in resin plasticization component
It is mixed, the materials such as wood powder are blended with B material or are impregnated in B material solution, then by the resin being blended and processed wood powder
It is squeezed out by the above method, after being repeatedly laminated, makes resin and wood powder while contacting, internal A material and B material
It chemically reacts, forms the C material of coupling, resin and wood powder are bonded.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910184000.4A CN109878100B (en) | 2019-03-12 | 2019-03-12 | Device and method for preparing wood-plastic composite material by laminating outside mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184000.4A CN109878100B (en) | 2019-03-12 | 2019-03-12 | Device and method for preparing wood-plastic composite material by laminating outside mold |
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| CN109878100A true CN109878100A (en) | 2019-06-14 |
| CN109878100B CN109878100B (en) | 2020-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113693260A (en) * | 2020-05-20 | 2021-11-26 | 秦皇岛烟草机械有限责任公司 | A method of forming a homogenized tobacco sheet |
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| CN109878100B (en) | 2020-11-20 |
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