CN207682893U - A kind of co-extruder producing multilayer composite board - Google Patents
A kind of co-extruder producing multilayer composite board Download PDFInfo
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- CN207682893U CN207682893U CN201820030185.4U CN201820030185U CN207682893U CN 207682893 U CN207682893 U CN 207682893U CN 201820030185 U CN201820030185 U CN 201820030185U CN 207682893 U CN207682893 U CN 207682893U
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Abstract
The utility model is related to a kind of co-extruders producing multilayer composite board.There is structural strength difference in the multilayer composite board of existing apparatus processing, influence service life.The utility model includes driving screw extruder, sub-screw extruder and composite machine head, composite machine head includes distributor, board mould, sprue, secondary channels are equipped in distributor, co-extrusion channel is set in board mould, secondary channels, which are exported, vertically adjoins setting with sprue outlet and forms co-extrusion outlet, co-extrusion outlet is squeezed channel entrance matching and is led to together, and the material flowed out out of sprue and secondary channels forms multilayer composite sheet by stacked co-extrusion channel of passing through.Sub-screw extruder and distributor are added on original device, plurality of raw materials in molten condition had both effectively reduced the connection stress of each interlayer, and had also effectively improved the bonding strength between wood moulding layer and layer of PVC by squeezing stacked realization good bond, effectively prolong the service life, reduces maintenance cost.
Description
Technical field
The utility model is related to house ornamentation fields, and in particular to a kind of decorative panel production equipment.
Background technology
In the prior art, Wood-plastic material has the characteristics that waterproof and dampproof, environmentally protective, so, using filling indoors
Field is repaiied, Wood-plastic material is processed to form Wood plastic boards by extrusion process, then processes to be formed with various dresses by heat pressing process
The decorative panel for adoring moulding, is widely used on Integral ceiling and integrated wall.But that there are surfaces is hard for the decorative panel of this structure
Degree is insufficient, not scratch-resistant defect, in transport, is susceptible to extruding breakage, cost is caused to increase, in use, hold
It is easily damaged because foreign matter collides with, shortens service life, increase use cost.For this purpose, existing technical staff passes through in wood moulding
Plate surface increases harder layer of PVC to form composite board to process, then processes to be formed with concave-convex decoration by heat pressing process
The decorative panel of lines, layer of PVC plays the role of protecting Wood plastic boards, but existing equipment to Wood plastic boards by carrying out secondary paving
If the mode of layer of PVC to form composite board to process, cause each interlayer bonding strength of composite board not good enough, cause Wood plastic boards with
It is easy occur the case where being detached from each other because of long-time service between layer of PVC, influences service life, increase maintenance cost.
Utility model content
In order to solve the deficiencies in the prior art, the utility model provides a kind of co-extrusion dress producing multilayer composite board
It sets, by adding distributor on original device so that Wood plastic boards are formed with layer of PVC synchronous processing, it is ensured that composite board is each
The bonding strength of interlayer.
The utility model is accomplished by the following way：A kind of co-extruder producing multilayer composite board, including driving screw
Extruder, described device include sub-screw extruder and composite machine head, the composite machine head include distributor and with distribution
The board mould that device discharge port leads to, be equipped in the distributor sprue led to driving screw extruder discharging mouth and with
The secondary channels that sub-screw extruder discharging mouth leads to, the board mould are equipped with the co-extrusion channel of perforation, and the secondary channels go out
Mouthful vertically adjoin setting with sprue outlet and on distributor surface converge to form the co-extrusion led to each other and export, co-extrusion outlet and
Co-extrusion channel entrance matching is led to, and the material flowed out out of sprue and secondary channels is passed through co-extrusion channel and formed by stacked
Multilayer composite sheet.Sub-screw extruder and distributor are added on original device, distributor can be by driving screw extruder and pair
The material of screw extruder output is stacked to be squeezed and is cooled into multilayer composite board, and the plurality of raw materials in molten condition passes through
Stacked realization good bond is squeezed, the connection stress of each interlayer had both been effectively reduced, and had also effectively improved the company between wood moulding layer and layer of PVC
Intensity is connect, is effectively prolonged the service life, maintenance cost is reduced.When wood moulding layer and layer of PVC are in soft molten condition, by squeezing
Pressure increases the laminating degree between the two contact surface, and then forms firm connection structure after the cooling period.
Preferably, co-extrusion channel entrance end periphery contour is matched with co-extrusion outlet periphery contour, it is described total
Extrusion madial wall with co-extrusion channel entrance end madial wall is smooth is connected, it is ensured that the material stacked from co-extrusion outlet smoothly into
Enter co-extrusion channel, prevents occurring the case where split dislocation between co-extrusion outlet port and co-extrusion access port, both effectively prevent being stacked
Material there is the case where confusing material because of joining place out-of-flatness, moreover it is possible to ensure the layer of PVC thickness phase in each region of composite board
Together.
Preferably, co-extrusion channel entrance end madial wall is the small chamfering of outer imperial palace, the co-extrusion exports madial wall
Equipped with outer small interior big chamfering.Stacked material exports from co-extrusion and flows into co-extrusion channel, using bulk variation come to compound
Plank applies active force, effectively improves the bonding strength between wood moulding layer and layer of PVC.
Preferably, the sprue back segment is horizontally disposed, the secondary channels back segment is angularly disposed and and sprue
It moves closer to and converges to form the co-extrusion outlet.Wood moulding layer is conveyed by sprue to co-extrusion channel, it is ensured that wood moulding layer is always
Formation state, layer of PVC is kept to pass through the oblique input co-extrusion channel of secondary channels, it is ensured that layer of PVC matching is fitted in wood moulding layer surface.
Since layer of PVC is relatively thin so that layer of PVC can be bonded by deformation realization with the matching of wood moulding layer.
Preferably, the co-extrusion channel middle, which is equipped with, squeezes active section, the top surface for squeezing active section or bottom surface are set
There is the extruding raised line extended transversely through.Bending extruding can be carried out to composite board by squeezing raised line so that the surface of wood moulding layer and layer of PVC
Material properly mixes, and then the adhesion intensity of the two is effectively improved after son cooling.It squeezes raised line and extends transversely through and be arranged in co-extrusion
On the top surface or bottom surface in channel, it is ensured that each section section of composite board width direction is by unified compressional deformation.
Preferably, the co-extrusion channel rear portion forms sizing active section, the top and bottom of the sizing active section are equal
It is horizontally disposed.Material in molten condition can cure because temperature reduces, composite plate of the sizing active section to cooling and solidifying
Material plays the role of sizing, it is ensured that composite board is smooth, facilitates and carries out subsequent hot pressing processing.
Preferably, the outlet of the sprue and the secondary channels is in strip.Wood moulding raw material passes through mainstream
Outlet sizing in road forms plate wood moulding layer, and PVC raw materials, which export to shape for being formed to be bonded by secondary channels, sticks in wood moulding layer surface
Layer of PVC, it is ensured that the ratio between the wood moulding layer thickness of each section of composite board and layer of PVC thickness are consistent.
Preferably, the secondary channels outlet height is H, 0.1mm≤H≤2mm.Secondary channels outlet height determines PVC
The thickness of layer, as H ＜ 0.1mm, composite board can be unable to reach default hardness because layer of PVC is relatively thin, and wood moulding layer is easy by outer
Power hits and Dish deformation occurs, and influences service life；As H ＞ 2mm, the thickness of layer of PVC can be increased, PVC can be caused to consume
Amount increases, and increases production cost.
Preferably, the distributor includes two secondary channels, the secondary channels split in the top of the sprue and
Lower section, outlet and the sprue outlet of the secondary channels converge to form the co-extrusion outlet.Two secondary channels are with sprue axis
Centered on be symmetricly set on above and below sprue, both ensured that the upper and lower surface of wood moulding layer is covered by layer of PVC,
Both play the role of protecting wood moulding layer two side walls, effectively enhance the structural strength of composite board, moreover it is possible to ensure that two layer of PVC have
Identical thickness.
Lead to preferably, the secondary channels front is matched by three ports with the sub-screw extruder discharging mouth.Two
PVC raw materials in a secondary channels are provided by same sub-screw extruder, have both ensured raw material proportioning consistency, it is ensured that PVC
Raw material flows into co-extrusion channel at the same pressure, it is ensured that two layer of PVC thickness are identical.
The beneficial effects of the utility model：Sub-screw extruder and distributor, distributor energy are added on original device
By driving screw extruder and the stacked extruding of the material of sub-screw extruder output and it is cooled into multilayer composite board, in melting
The plurality of raw materials of state had both effectively reduced the connection stress of each interlayer, had also effectively improved by squeezing stacked realization good bond
Bonding strength between wood moulding layer and layer of PVC, effectively prolongs the service life, and reduces maintenance cost.
Description of the drawings
Fig. 1 is the utility model schematic cross-sectional view；
Fig. 2 is distributor schematic cross-sectional view；
Fig. 3 is A-A ' cross section structural schematic diagrams；
In figure：1, driving screw extruder, 2, sub-screw extruder, 3, distributor, 4, board mould, 5, sprue, 6, secondary
Runner, 7, co-extrusion outlet, 8, co-extrusion channel, 9, squeeze active section, 10, squeeze raised line, 11, sizing active section, 12, three ports.
Specific implementation mode
The substantive distinguishing features of the utility model are made further with specific implementation mode with reference to the accompanying drawings of the specification
It is bright.
A kind of co-extruder producing multilayer composite board as shown in Figure 1, including driving screw extruder 1, it is described
Device includes sub-screw extruder 2 and composite machine head, the composite machine head include distributor 3 and with 3 discharge port of distributor
The board mould 4 led to, be equipped in the distributor 3 sprue 5 led to 1 discharge port of driving screw extruder and with secondary spiral shell
The secondary channels 6 that 2 discharge port of bar extruder leads to, the board mould 4 are equipped with the co-extrusion channel 8 of perforation, and the secondary channels 6 go out
Mouth is exported with sprue 5 vertically to be adjoined setting and converges the co-extrusion outlet 7 to be formed and be led to each other, coextrusion on 3 surface of distributor
Mouth 7 is matched with 8 import of co-extrusion channel to be led to, and the material flowed out out of sprue 5 and secondary channels 6 passes through co-extrusion by stacked
Channel 8 forms multilayer composite sheet.
In practical operation, wood moulding raw material and PVC raw materials are respectively in corresponding driving screw extruder 1 and sub-screw extruder
It heats in 2 and is exported with molten condition, the sprue 5 and secondary channels 6 on distributor 3 receive the wood moulding raw material of molten condition respectively
With PVC raw materials, extrusion molding forms the wood moulding layer and layer of PVC that can match overlapping.Wood moulding layer and layer of PVC matching at co-extrusion outlet 7 are folded
It sets, and compression sizing is realized by the co-extrusion channel 8 in board mould 4, the multilayer material squeezed out from the outlet of co-extrusion channel 8 is through cold
But multilayer composite board is formed.The multi-layered board includes that layer of PVC in wood moulding layer surface, multilayer is arranged in wood moulding layer and fitting
Intensity higher, the toughness of composite board are more preferable, indeformable, do not crack, without warpage, and supine human body is strong, and have wood characteristics, can
Follow closely, can saw, can dig, can japanning, can bore, also waterproof, mould proof, Anti-moth-eating, anticorrosion, fire-retardant, antibacterial, acid and alkali-resistance, it is capable of washing.From
Outer viewing, base material without knot, without twill, no color differnece, surface can carry out patch wood skin, PVC film, PU paper, thermal transfer, direct japanning etc.
A variety of later stage facing processing modes, surface adhesion strength are high.In addition, the decoration pollution problem such as product is formaldehydeless, ammonia, benzene, and
It can be with circular regeneration.Due to increasing one layer of hard layer of PVC on wood moulding surface, the integral strength and case hardness of product all obtain
To significantly improving, since the surface smoothness of wood moulding layer is good, and surface is covered with layer of PVC, it is possible to reduce base coat thickness saves life
Produce cost.
In the present embodiment, 8 input end periphery contour of the co-extrusion channel exports 7 periphery contours with the co-extrusion and matches,
The co-extrusion exports 7 madial walls and 8 input end madial wall of the co-extrusion channel is smooth is connected.In 8 input end of co-extrusion channel
Side wall is the small chamfering of outer imperial palace, and the co-extrusion exports 7 madial walls and is equipped with outer small interior big chamfering（As shown in Figure 2）.It is described total
7 madial wall of extrusion and the smooth channel for being connected formation height and being gradually reduced of 8 input end madial wall of co-extrusion channel, both ensure to be stacked
Wood moulding layer and layer of PVC steadily compressed, it is ensured that the two thickness proportion is consistent, moreover it is possible to it is strong to be effectively increased connection between the two
Degree, it is ensured that service life.
In the present embodiment, the secondary channels 6 are two, and are split above and below sprue 5, the sprue
5 back segments be it is horizontally disposed, 6 back segment of the secondary channels be it is angularly disposed and moved closer to sprue 5 and converge to be formed it is described total
Extrusion 7.Double wall thickness between the secondary channels 6 and sprue 5 can reduce with secondary channels 6 close to sprue 5, and altogether
It disappears at extrusion 7 so that secondary channels 6 export and the outlet of sprue 5 forms the co-extrusion outlet 7 led to, and then ensure wood moulding layer
It is bonded with layer of PVC matching.The layer of PVC exported out of two secondary channels 6 is stacked in the fitting of wood moulding layer in co-extrusion outlet 7, due to
The output pressure of secondary channels 6 is identical, and the angle of injection is also identical so that the wood moulding layer of horizontal direction output stress because above and below
It is balanced and remain horizontality.
In practical operation, 8 front axis of the co-extrusion channel collinear setting of 7 axis of extrusion together, it is ensured that stacked
Wood moulding layer and layer of PVC are by horizontal direction input co-extrusion channel 8.Stacked wood moulding layer and layer of PVC enter co-extrusion channel 8, co-extrusion channel 8
Front, middle part and rear portion stacked wood moulding layer and layer of PVC can be handled respectively.It the front in co-extrusion channel 8 can be to folded
The wood moulding layer and layer of PVC set are compressed so that wood moulding layer and layer of PVC adhesion are more secured, effectively squeeze between wood moulding layer and layer of PVC
Gap.8 middle part of the co-extrusion channel, which is equipped with, squeezes active section 9, and the top surface for squeezing active section 9 or bottom surface are equipped with and laterally pass through
The extruding raised line 10 worn squeezes raised line 10 to further reduce 8 respective segments depth of section of co-extrusion channel, to stacked by setting
Wood moulding layer and layer of PVC apply bigger squeezing action power, stacked wood moulding layer and layer of PVC can be with 8 madial walls of co-extrusion channel
Profile variations deform upon, and wood moulding layer and layer of PVC realize that fit area part mixes by Bending Deformation, further increase wood moulding
Bonding strength between layer and layer of PVC.8 rear portion of co-extrusion channel forms sizing active section 11, the top surface of the sizing active section
It is that horizontally disposed, stacked wood moulding layer and layer of PVC deformation and is cooled into plate again with bottom surface.
Preferably, the outlet of the sprue 5 and the secondary channels 6 is in strip.Sprue 5 and secondary channels
6 outlet shapes determine the contour shape of wood moulding layer and layer of PVC in each section of multilayer composite board, the wood moulding layer of strip and
Layer of PVC has larger contact area, has both facilitated later stage hot pressing to process, moreover it is possible to effectively improve the connection between wood moulding layer and layer of PVC
Intensity.
Preferably, 6 outlet height of the secondary channels is H, 0.1mm≤H≤2mm.Preferred embodiment, H=0.5mm, parameter H
Numerical value can be set according to actual conditions, the numerical value and consumption of raw materials amount of parameter H is proportional, also with multilayer composite board
Structural strength it is proportional, be regarded as specific embodiment of the utility model.
Preferably, the distributor 3 includes two secondary channels 6, the secondary channels 6 are split in the upper of the sprue 5
Side and lower section, outlet and the outlet of sprue 5 of the secondary channels 6 converge to form the co-extrusion outlet 7.The number of the secondary channels 6
Amount should be set according to the number of plies of multilayer composite board, and the outlet of secondary channels 6 is sequentially stacked setting, is regarded as this practicality
Novel specific embodiment.For example, when multilayer materials are four-layer structure, three secondary channels 6 of setting and sprue 5 are needed
Cooperation, and the import of three secondary channels 6 is exported with the screw extruder equipped with corresponding raw material respectively and is connected.
In practical operation, the quantity of the sub-screw extruder 2 can be set according to actual conditions, and sub-screw squeezes
The quantity for going out machine 2 is set according to raw material type, such as multilayer composite board is stacked by three layers of different materials when being formed, secondary spiral shell
Bar extruder 2 is two, and cooperatively forms corresponding material layer with driving screw extruder 1, is regarded as the tool of the utility model
Body embodiment.
In practical operation, 6 front of the secondary channels is matched by three ports 12 with 2 discharge port of sub-screw extruder
Lead to（As shown in Figure 3）.Three ports 12 are opened up in distributor 3, two ports of three ports 12 are logical with corresponding secondary channels 6 respectively
Even, another port and the discharge port of sub-screw extruder 2 lead to.
Claims (10)
1. a kind of co-extruder producing multilayer composite board, including driving screw extruder（1）, which is characterized in that described device
Including sub-screw extruder（2）And composite machine head, the composite machine head include distributor（3）And and distributor（3）Discharging
The board mould that mouth leads to（4）, the distributor（3）It is interior to be equipped with and driving screw extruder（1）The sprue that discharge port leads to（5）
And with sub-screw extruder（2）The secondary channels that discharge port leads to（6）, the board mould（4）The co-extrusion for being equipped with perforation is logical
Road（8）, the secondary channels（6）Outlet and sprue（5）Outlet vertically adjoins setting and in distributor（3）Converge to be formed mutually in surface
For the co-extrusion outlet led to（7）, co-extrusion outlet（7）With the co-extrusion channel（8）Import matching is led to, from sprue（5）And pair
Runner（6）The material of interior outflow passes through co-extrusion channel by stacked（8）Form multilayer composite sheet.
2. a kind of co-extruder producing multilayer composite board according to claim 1, which is characterized in that the co-extrusion is logical
Road（8）Input end periphery contour is exported with the co-extrusion（7）Periphery contour matches, the co-extrusion outlet（7）Madial wall with it is described
Co-extrusion channel（8）The smooth linking of input end madial wall.
3. a kind of co-extruder producing multilayer composite board according to claim 2, which is characterized in that the co-extrusion is logical
Road（8）Input end madial wall is the small chamfering of outer imperial palace, the co-extrusion outlet（7）Madial wall is equipped with outer small interior big chamfering.
4. a kind of co-extruder producing multilayer composite board according to claim 2, which is characterized in that the sprue
（5）Back segment is horizontally disposed, the secondary channels（6）Back segment is angularly disposed and and sprue（5）It moves closer to and converges to be formed
The co-extrusion outlet（7）.
5. a kind of co-extruder producing multilayer composite board according to claim 1, which is characterized in that the co-extrusion is logical
Road（8）Middle part, which is equipped with, squeezes active section（9）, the extruding active section（9）Top surface or to be equipped with the extruding that extends transversely through convex for bottom surface
Item（10）.
6. a kind of co-extruder producing multilayer composite board according to claim 1, which is characterized in that the co-extrusion is logical
Road（8）Rear portion forms sizing active section（11）, the top and bottom of the sizing active section are horizontally disposed.
7. a kind of co-extruder producing multilayer composite board according to claim 1, which is characterized in that the sprue
（5）With the secondary channels（6）Outlet be in strip.
8. a kind of co-extruder producing multilayer composite board according to claim 7, which is characterized in that the secondary channels
（6）Outlet height is H, 0.1mm≤H≤2mm.
9. according to a kind of any co-extruders producing multilayer composite board of claim 1-8, which is characterized in that described
Distributor（3）Including two secondary channels（6）, the secondary channels（6）It splits in the sprue（5）Above and below, it is described
Secondary channels（6）Outlet and sprue（5）Converge to form the co-extrusion outlet in outlet（7）.
10. a kind of co-extruder producing multilayer composite board according to claim 9, which is characterized in that the secondary stream
Road（6）Front passes through three ports（12）With the sub-screw extruder（2）Discharge port matching is led to.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820030185.4U CN207682893U (en) | 2018-01-09 | 2018-01-09 | A kind of co-extruder producing multilayer composite board |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820030185.4U CN207682893U (en) | 2018-01-09 | 2018-01-09 | A kind of co-extruder producing multilayer composite board |
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| CN207682893U true CN207682893U (en) | 2018-08-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424674A (en) * | 2019-08-21 | 2019-11-08 | 长兴经纬竹制品有限公司 | The floor co-extrusion SPC and its production equipment |
| WO2021077680A1 (en) * | 2019-10-24 | 2021-04-29 | 安徽森泰木塑科技地板有限公司 | Mold for manufacturing foamed floor having wood textures |
| CN114179329A (en) * | 2021-11-19 | 2022-03-15 | 安徽雄峰建材有限公司 | Co-extrusion packaging process for plastic profile sealing rubber strip |
| CN117484820A (en) * | 2023-11-30 | 2024-02-02 | 广东欧迪明光电科技股份有限公司 | Diffusion plate multilayer coextrusion equipment and production method thereof |
-
2018
- 2018-01-09 CN CN201820030185.4U patent/CN207682893U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424674A (en) * | 2019-08-21 | 2019-11-08 | 长兴经纬竹制品有限公司 | The floor co-extrusion SPC and its production equipment |
| WO2021077680A1 (en) * | 2019-10-24 | 2021-04-29 | 安徽森泰木塑科技地板有限公司 | Mold for manufacturing foamed floor having wood textures |
| CN114179329A (en) * | 2021-11-19 | 2022-03-15 | 安徽雄峰建材有限公司 | Co-extrusion packaging process for plastic profile sealing rubber strip |
| CN117484820A (en) * | 2023-11-30 | 2024-02-02 | 广东欧迪明光电科技股份有限公司 | Diffusion plate multilayer coextrusion equipment and production method thereof |
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