CN110925217A - Special melt pump for high-filling wood-plastic composite material - Google Patents
Special melt pump for high-filling wood-plastic composite material Download PDFInfo
- Publication number
- CN110925217A CN110925217A CN201911205047.0A CN201911205047A CN110925217A CN 110925217 A CN110925217 A CN 110925217A CN 201911205047 A CN201911205047 A CN 201911205047A CN 110925217 A CN110925217 A CN 110925217A
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- China
- Prior art keywords
- melt pump
- melt
- plastic composite
- wood
- tooth blade
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention provides a special melt pump for a high-filling wood-plastic composite material, which comprises an extruder, a screw, a flange, a melt pump, a straight-tooth blade, a curved-tooth blade, a feeding port and a discharging port, wherein the extruder is provided with a screw rod; the melt pump is connected with the tail end of the extruder through a flange, and a screw is arranged in the extruder; the feeding port is arranged on the left side of the melt pump, a straight tooth blade and a curved tooth blade are arranged in the melt pump, and the discharging port is arranged at the rightmost end of the melt pump. The invention utilizes the multi-blade structure to convey the highly filled wood-plastic composite, ensures that the poor-fluidity wood-plastic composite melt can stably flow forwards under the multi-blade power conveying condition, and the straight-tooth blade at the front end can increase the conveying efficiency of the composite melt, particularly has better effect on the poor-fluidity wood-plastic composite, and the curved-tooth blade at the back has smaller disturbance on the melt, is softer in shearing, has basketball to stabilize the melt pressure, homogenizes the local speed of each part of the melt, and promotes the stable conveying of the wood-plastic composite melt.
Description
Technical Field
The invention relates to the field of melt pumps, in particular to a special melt pump for a high-filling wood-plastic composite material.
Background
The wood-plastic composite material is a novel composite material which has the double performances of plastic processing performance and wood texture and is prepared by fully utilizing agricultural and forestry wastes and plastic reclaimed materials. The content of the plant fiber serving as a main raw material of the wood-plastic composite material is usually over 50 percent, and the addition of the high-content plant fiber changes the rheological behavior of a resin matrix, increases the viscosity, deteriorates the fluidity and is difficult to process. On the other hand, the water content of the plant fiber is usually as high as 10%, the drying cost of the plant fiber is too high through heating equipment, and the plant fiber is usually directly used, so that the phenomenon of extrusion instability of the wood-plastic composite material due to overweight water in the extrusion granulation process is caused, the extrusion of the composite material is unstable, obvious melt fracture is often caused, and even the phenomenon of serious material spraying is caused. In the processes of extrusion granulation and section bar production, the stability of melt conveying directly determines the stability of production, which is the premise of quality assurance. The conventional method adopts a double-stage extruder, the composite material is subjected to mixing and dehumidification in a first-stage extruder, the moisture in the material is removed, and the composite material is stably extruded in a second-stage extruder to ensure that the moisture content of the composite material is minimum. Meanwhile, for the composite material with the water content of the plant fibers being too high, the water inside the composite material cannot be completely removed even through two steps, and the purpose of stable extrusion cannot be achieved.
Disclosure of Invention
The invention provides a special melt pump for a high-filling wood-plastic composite material, aiming at the problems of poor fluidity of the high-filling wood-plastic composite material, unstable material extrusion and material spraying in the processes of extrusion granulation and molding in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a special melt pump for high-filling wood-plastic composite materials comprises an extruder, a screw, a flange, a melt pump, a straight tooth blade, a curved tooth blade, a feeding port and a discharging port; the melt pump is connected with the tail end of the extruder through a flange, and a screw is arranged in the extruder; the feeding port is arranged on the left side of the melt pump, a straight tooth blade and a curved tooth blade are arranged in the melt pump, and the discharging port is arranged at the rightmost end of the melt pump.
Furthermore, two straight tooth blades and a curved tooth blade are sequentially arranged in a flow channel of the pump body of the melt pump.
Furthermore, two straight tooth blades and one curved tooth blade rotate clockwise.
Furthermore, the number of straight-tooth blades and curved-tooth blades is 2-6.
Furthermore, the distance between two straight tooth blades and one curved tooth blade is equal.
Furthermore, the straight tooth blade and the curved tooth blade are made of the same metal material.
The conveying device has the advantages that the multi-blade structure is utilized to convey the high-filling wood-plastic composite, the poor-fluidity wood-plastic composite melt can be guaranteed to stably flow forwards under the multi-blade power conveying condition, in addition, the straight tooth blade at the front end can increase the conveying efficiency of the composite melt, the conveying device is particularly better in the poor-fluidity wood-plastic composite, the rear curved tooth blade has smaller disturbance to the melt, the shearing is softer, the melt pressure is stabilized by basketball, the local speed of each part of the melt is homogenized, and the stable conveying of the wood-plastic composite melt is promoted.
Drawings
Fig. 1 is a schematic structural diagram of a melt pump special for a highly filled wood-plastic composite material.
Wherein: 1. an extruder; 2. a screw; 3. a flange; 4. a melt pump; 5. straight-tooth blades; 6. a curved-tooth blade; 7. a feeding port; 8. and (4) a discharge port.
Detailed Description
The present invention will be further described with reference to the following embodiments.
Example 1
A special melt pump for high-filling wood-plastic composite materials comprises an extruder, a screw, a flange, a melt pump, a straight tooth blade, a curved tooth blade, a feeding port and a discharging port; the melt pump is connected with the tail end of the extruder through a flange, and a screw is arranged in the extruder; the feeding port is arranged on the left side of the melt pump, a straight tooth blade and a curved tooth blade are arranged in the melt pump, and the discharging port is arranged at the rightmost end of the melt pump.
Two straight tooth blades and a curved tooth blade are sequentially arranged in a flow channel of a pump body of the melt pump; the two straight-tooth blades and the curved-tooth blade rotate clockwise; straight tooth blades and curved tooth blades, the number of the blades is 2-6; the distance between the two straight tooth blades and the distance between the two curved tooth blades are equal; the straight tooth blade and the curved tooth blade are made of the same metal material.
The melt of the wood-plastic composite material is extruded out of a feeding port of a melt pump under the action of a screw after being mixed in an extruder, the melt of the wood-plastic composite material entering the feeding port has poor fluidity, two straight-tooth blades and one curved-tooth blade synchronously start to rotate, the popularity of the melt of the wood-plastic composite material is accelerated through the rotation of the straight-tooth blades and the curved-tooth blades, and the melt gradually passes through the two straight-tooth blades and the curved-tooth blade and finally reaches a discharging port to flow out of the discharging port.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention.
Claims (6)
1. A special melt pump for high-filling wood-plastic composite materials comprises an extruder, a screw, a flange, a melt pump, a straight tooth blade, a curved tooth blade, a feeding port and a discharging port; the method is characterized in that: the melt pump is connected with the tail end of the extruder through a flange, and a screw is arranged in the extruder; the feeding port is arranged on the left side of the melt pump, a straight tooth blade and a curved tooth blade are arranged in the melt pump, and the discharging port is arranged at the rightmost end of the melt pump.
2. The special melt pump for the highly filled wood-plastic composite material according to claim 1, wherein: two straight tooth blades and a curved tooth blade are sequentially arranged in a flow passage of a pump body of the melt pump.
3. The special melt pump for the highly filled wood-plastic composite material according to claim 1, wherein: two straight tooth blades and one curved tooth blade rotate clockwise.
4. The special melt pump for the highly filled wood-plastic composite material according to claim 1, wherein: straight tooth blades and curved tooth blades, the number of the blades is 2-6.
5. The special melt pump for the highly filled wood-plastic composite material according to claim 1, wherein: the distance between two straight tooth blades and one curved tooth blade is equal.
6. The special melt pump for the highly filled wood-plastic composite material according to claim 1, wherein: the straight tooth blade and the curved tooth blade are made of the same metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911205047.0A CN110925217A (en) | 2019-11-29 | 2019-11-29 | Special melt pump for high-filling wood-plastic composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911205047.0A CN110925217A (en) | 2019-11-29 | 2019-11-29 | Special melt pump for high-filling wood-plastic composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110925217A true CN110925217A (en) | 2020-03-27 |
Family
ID=69847932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911205047.0A Pending CN110925217A (en) | 2019-11-29 | 2019-11-29 | Special melt pump for high-filling wood-plastic composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110925217A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202263558U (en) * | 2011-10-21 | 2012-06-06 | 马方兴 | Wood-plastic material agitator-dedicated blade |
| CN104527104A (en) * | 2014-11-28 | 2015-04-22 | 中材科技股份有限公司 | Continuous forming device for hollow composite board-wood plastic composite material and application thereof |
| CN204431542U (en) * | 2014-12-31 | 2015-07-01 | 马弗橡塑（镇江）有限公司 | A kind of pay-off produced for elastomeric compound |
| US20150184655A1 (en) * | 2013-12-26 | 2015-07-02 | HENKE Property UG (haftungsbeschränkt) | Melt pumps for pressing synthetic material through a tool |
| CN204704102U (en) * | 2015-06-01 | 2015-10-14 | 浙江天禾生态科技有限公司 | A kind of Melt Pump structure with damping device |
| CN205906728U (en) * | 2016-08-16 | 2017-01-25 | 长沙矿山研究院有限责任公司 | Fill ground paste pipeline resistance -increasing device |
| CN106367099A (en) * | 2016-11-16 | 2017-02-01 | 武汉科技大学 | Waste plastic rubber cracking catalyst support |
| CN108176265A (en) * | 2017-12-27 | 2018-06-19 | 杜海芳 | Blender with storing, dedusting chemical process |
| CN108407042A (en) * | 2018-05-15 | 2018-08-17 | 中铁四局集团有限公司 | Building 3D printer continuous feeding system |
| CN109779963A (en) * | 2019-02-21 | 2019-05-21 | 三联泵业股份有限公司 | A kind of solid-liquid two-phase flow stirring-type impeller |
-
2019
- 2019-11-29 CN CN201911205047.0A patent/CN110925217A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202263558U (en) * | 2011-10-21 | 2012-06-06 | 马方兴 | Wood-plastic material agitator-dedicated blade |
| US20150184655A1 (en) * | 2013-12-26 | 2015-07-02 | HENKE Property UG (haftungsbeschränkt) | Melt pumps for pressing synthetic material through a tool |
| CN104527104A (en) * | 2014-11-28 | 2015-04-22 | 中材科技股份有限公司 | Continuous forming device for hollow composite board-wood plastic composite material and application thereof |
| CN204431542U (en) * | 2014-12-31 | 2015-07-01 | 马弗橡塑（镇江）有限公司 | A kind of pay-off produced for elastomeric compound |
| CN204704102U (en) * | 2015-06-01 | 2015-10-14 | 浙江天禾生态科技有限公司 | A kind of Melt Pump structure with damping device |
| CN205906728U (en) * | 2016-08-16 | 2017-01-25 | 长沙矿山研究院有限责任公司 | Fill ground paste pipeline resistance -increasing device |
| CN106367099A (en) * | 2016-11-16 | 2017-02-01 | 武汉科技大学 | Waste plastic rubber cracking catalyst support |
| CN108176265A (en) * | 2017-12-27 | 2018-06-19 | 杜海芳 | Blender with storing, dedusting chemical process |
| CN108407042A (en) * | 2018-05-15 | 2018-08-17 | 中铁四局集团有限公司 | Building 3D printer continuous feeding system |
| CN109779963A (en) * | 2019-02-21 | 2019-05-21 | 三联泵业股份有限公司 | A kind of solid-liquid two-phase flow stirring-type impeller |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200327 |
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| RJ01 | Rejection of invention patent application after publication |