CN2567018Y - Melt pump for sheet extruder - Google Patents
Melt pump for sheet extruder Download PDFInfo
- Publication number
- CN2567018Y CN2567018Y CN02249818U CN02249818U CN2567018Y CN 2567018 Y CN2567018 Y CN 2567018Y CN 02249818 U CN02249818 U CN 02249818U CN 02249818 U CN02249818 U CN 02249818U CN 2567018 Y CN2567018 Y CN 2567018Y
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- CN
- China
- Prior art keywords
- materials
- pump
- utility
- model
- sheet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
- B29C48/37—Gear pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a melt pump for a sheet extruder, which comprises a gear pump composed of a pump body and a pair of gear wheels which are arranged in the pump body and can gradually separate and then can be mutually engaged again when corresponding rotation is conducted. The internal part of an interlayer of the pump body is provided with an electric heater, and the inlet point and the outlet point of materials are also respectively provided with a pressure metering and detecting device of the inlet materials and the outlet materials. The electric heater can be cast with aluminum. The utility model has the advantages of novel design and compact structure; through conveying, mixing, shearing, plasticizing, dewatering, and exhausting process, the materials can be the smelt which is in the plastic state and can have high starch content of more than 70% in an extruding machine of full degrading paper-like sheet materials. The utility model can increase output speed of flow capacity; shearing and residence time of the materials can be reduced in the extruder, and extrusion molding temperature and pressure pulsation can be reduced to improve pumping efficiency and quality of finished products. The utility model can also realize rapid temperature rising and heat control, and the pressure pulsation of the outlet of the materials is controlled within 1%. The melt pump for a sheet extruder can completely satisfy extruding requirements of the sheet materials of the relevant high yield in the preparing technology of the full degrading paper-like materials.
Description
Technical field the utility model relates to the composition quasi-plastic property state material of starch, amylose or amylopectin or their derivative or catabolite, and the used equipment of extrusion molding sheet material that contains high molecular plastic state substance, relate in particular to a kind of sheet extruder Melt Pump.
The existing plastics that are widely used in packing business of background technology can not be from degraded, the human and vegeto-animal living environment of its discarded object severe contamination.The applicant's patent formerly 02130898.5, having proposed with starch is base-material, poly-third ethene and polyethylene are the plasticising intermediate, under the acting in conjunction of other auxiliary agent, by physics and chemical modification, make full-degradation paper imitation material.Last procedure of this material preparation method is, the required powder metering that the front operation is obtained is sent into the sheet material extrusion equipment and is made sheet material, and whole process is mixing for carrying in regular turn, shear plasticizing, dehydration exhaust, supercharging are extruded, press polish is cut edge, cooling is drawn and the rolling finished product.Because the content of starch height of powder, existing screw sheet extruder is subjected to the restriction that self forms structure and operation mechanism, can not adapt to high-content of starch and reach plastic state substance more than 70%, particularly relevantly among the preparation technology of the full-degradation paper imitation material that proposes of the applicant starch is carried out molecular structure alteration and oneself and organize compound mixingly, and the sheet material of high finished product rate is extruded requirement.
Summary of the invention is to remedy the defective that prior art exists, and the utility model proposes a kind of sheet extruder Melt Pump.The technical scheme that adopts is as follows:
This sheet extruder Melt Pump, comprise by the pump housing and within it a pair of and when relatively rotating, can separate again again the gear pump that intermeshed gear is formed gradually, it is characterized in that being provided with electric heater in the interlayer of the pump housing, import and export place at material also is respectively equipped with into and out of the material pressure measuring and testing device.
This sheet extruder is that electric heater is the cast aluminium electric heater with the further feature of Melt Pump.
The utility model beneficial effect against existing technologies is, novel, compact conformation, its material can be that high-content of starch reaches high-fall more than 70% and separates mixing through carrying in the imitative paper sheets extruder, as to shear plasticizing, dehydration deairing step mecystasis melt, this transfiguration supercharging and the positive displacement pump that measures measuring ability of having, can improve the flow output speed, reduce shearing and the residence time of material in extruder, reduce extrusion temperature and pressure fluctuation, to improve extrusion efficiency and end product quality.Be provided with electric heater and into and out of the material pressure measuring and testing device, can realize being rapidly heated and heat control, and material outlet pressure fluctuation is controlled in 1%.This Melt Pump can satisfy the sheet material of relevant high finished product rate among the preparation technology of full-degradation paper imitation material fully and extrude requirement.
Appended drawings is a structural profile schematic diagram of the present utility model.
High-fall the separating of the specific embodiment imitated paper sheets extruder Melt Pump
Below the contrast accompanying drawing and in conjunction with the specific embodiment the utility model is described in further detail.
This high-fall imitative paper sheets extruder Melt Pump of separating, material is that each component of full-degradation paper imitation material process in sheet extruder that high-content of starch reaches more than 70% is carried mixing, shear plasticizing, mecystasis melt behind the dehydration deairing step, Melt Pump comprises by the pump housing 1 and within it a pair of can separate again the gear pump that intermeshed gear 2 is formed gradually again when relatively rotating, be provided with heating power in the interlayer of the pump housing 1 and be 1.2 kilowatts cast aluminium electric heater 3, in advancing of mecystasis melt, the exit also is respectively equipped with into, go out mecystasis melt pressure measuring and testing device 4,5.This Melt Pump can stop the flowed fluctuation and the pressure fluctuation of upstream effectively separately by a Motor Drive.
Claims (2)
1, a kind of sheet extruder Melt Pump, comprise by the pump housing and within it a pair of and when relatively rotating, can separate again again the gear pump that intermeshed gear is formed gradually, it is characterized in that being provided with electric heater in the interlayer of the pump housing, import and export place at material also is respectively equipped with into and out of the material pressure measuring and testing device.
2, sheet extruder Melt Pump according to claim 1 is characterized in that electric heater is the cast aluminium electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02249818U CN2567018Y (en) | 2002-11-23 | 2002-11-23 | Melt pump for sheet extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02249818U CN2567018Y (en) | 2002-11-23 | 2002-11-23 | Melt pump for sheet extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2567018Y true CN2567018Y (en) | 2003-08-20 |
Family
ID=33720169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02249818U Expired - Lifetime CN2567018Y (en) | 2002-11-23 | 2002-11-23 | Melt pump for sheet extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2567018Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116221099A (en) * | 2023-05-06 | 2023-06-06 | 合肥华升泵阀股份有限公司 | Melt pump simulation test bed |
| CN116221058A (en) * | 2023-05-06 | 2023-06-06 | 合肥华升泵阀股份有限公司 | Melt pump for conveying high-temperature high-pressure high-viscosity medium |
-
2002
- 2002-11-23 CN CN02249818U patent/CN2567018Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116221099A (en) * | 2023-05-06 | 2023-06-06 | 合肥华升泵阀股份有限公司 | Melt pump simulation test bed |
| CN116221058A (en) * | 2023-05-06 | 2023-06-06 | 合肥华升泵阀股份有限公司 | Melt pump for conveying high-temperature high-pressure high-viscosity medium |
| CN116221099B (en) * | 2023-05-06 | 2023-07-28 | 合肥华升泵阀股份有限公司 | Melt pump simulation test bed |
| CN116221058B (en) * | 2023-05-06 | 2023-07-28 | 合肥华升泵阀股份有限公司 | Melt pump for conveying high-temperature high-pressure high-viscosity medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121123 Granted publication date: 20030820 |