CN203331383U - Double-screw extruder head with cooling medium passage - Google Patents
Double-screw extruder head with cooling medium passage Download PDFInfo
- Publication number
- CN203331383U CN203331383U CN2013203866952U CN201320386695U CN203331383U CN 203331383 U CN203331383 U CN 203331383U CN 2013203866952 U CN2013203866952 U CN 2013203866952U CN 201320386695 U CN201320386695 U CN 201320386695U CN 203331383 U CN203331383 U CN 203331383U
- Authority
- CN
- China
- Prior art keywords
- guiding channel
- head
- coolant guiding
- cooling medium
- runner
- Prior art date
- 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 - Fee Related
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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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/87—Cooling
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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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/92409—Die; Nozzle zone
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an extruder head, in particular to a double-screw extruder head with a cooling medium passage. The double-screw extruder head comprises a head main body, wherein the head main body is provided with a runner and heating bar holes, the cooling medium passage is arranged on the periphery of the runner on the head main body, and an inlet pipeline of the cooling medium passage is provided with an electromagnetic valve; the head main body is provided with a temperature sensor, the temperature sensor is connected with a control unit, and the control unit is connected with the electromagnetic valve. According to the double-screw extruder head, the cooling medium passage is additionally arranged on the traditional head, and the temperature sensor and the electromagnetic valve are additionally arranged, so that the process temperature of the head can be set according to the process condition, and the problem that materials are thermally decomposed on the head due to the excessively-high temperature can be well solved.
Description
Technical field
The utility model relates to a kind of cross-head, particularly a kind of machine head of the twin-screw extrusion with coolant guiding channel.
Background technology
In double screw extruder, head is the critical piece of product molding, and fused materials obtains certain geometric cross section and size by it.Reasonably extruding-out process, advanced extrusion equipment, efficient advanced extruder head and shaping equipment are the three elements of modern plastics extrusion molding.In fact, in a sense, in this three large key element, the quality of head plays conclusive effect.Because the update of extrusion molding plastic products and goods is finally all to be determined by head and shaping equipment thereof.
Common twin-screw extrusion machine head generally only is designed with heating element heater, illogical cooling medium.Pursuing under high yield, high-revolving condition, can not be cooling owing to can only heating at the head place, some heat sensitive materials are easy to make excess Temperature owing to being subject to strong the shearing, and thermal decomposition occurs.
Pursuing in high yield, high-revolving situation, material in extruder is subject to very high shear action at the head place, and common cross-head only is provided with heating element heater, with cooling medium, do not come cooling, the control of the temperature at head place just can not be very accurate like this, be easy to cause the temperature of charge at head place too high, make material generation thermal decomposition, affect the quality of extruded product.
The utility model content
The problem existed for prior art, provide a kind of machine head of the twin-screw extrusion with coolant guiding channel.
The technical solution adopted in the utility model is:
A kind of machine head of the twin-screw extrusion with coolant guiding channel, comprise crosshead body, be provided with runner and heating rod hole on described crosshead body, around described crosshead body upper runner, be provided with coolant guiding channel, on the inlet ductwork of described coolant guiding channel, be provided with magnetic valve; Be provided with temperature sensor on described crosshead body, described temperature sensor connection control unit, described control module connects described magnetic valve.Described magnetic valve is for controlling the break-make of inlet ductwork, and described temperature sensor is passed to described control module for detection of head temperature and by signal, and described control module is controlled described electromagnetic valve switch according to the signal transmitted.Flow through the cooling water of described coolant guiding channel only for cooling machine head, and cooling is independently, not with extruder on other equipment share, cooling water enters separately coolant guiding channel, more separately from coolant guiding channel out.Head is the runner that the characteristic according to plastics and/or rubber designs fully, and runner is smooth without dead angle, and material pressure is evenly distributed in runner, extrudes state steady, does not fluctuate.Cross-head of the present utility model is pellet head, and the raw material that it is produced is plastics, rubber etc.
As preferred embodiment of the present utility model, described runner is trapezoidal, described coolant guiding channel be П shape be trapped among described trapezoidal runner around.Described coolant guiding channel is П shape 90-degree rotation.Channel shape is set like this, advantages of simple is cooling even.
As preferred embodiment of the present utility model, the import of described coolant guiding channel is arranged on the lower end of described crosshead body, the outlet of described coolant guiding channel is arranged on the upper end of described crosshead body, described coolant guiding channel is П shape 90-degree rotation, utilize the pressure of water, allow the water handpiece body of flowing through from below to up, channel shape is set like this, advantages of simple is cooling even.
As preferred embodiment of the present utility model, be provided with the needle valve of controlling cooling medium consumption on the inlet ductwork of described coolant guiding channel.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, add coolant guiding channel on traditional head, well solved some materials the problem of thermal decomposition occurs due to excess Temperature at the head place.
2, added temperature sensor and magnetic valve, can required head technological temperature be set according to process conditions, more effectively solved material the problem of thermal decomposition occurs due to excess Temperature at the head place.
The accompanying drawing explanation
Fig. 1 is front view of the present utility model
Fig. 2 is left view of the present utility model
Fig. 3 is the inner trapezoidal runner perspective view of head
Mark in figure: 1-crosshead body, 2-coolant guiding channel, 3-runner, a-cooling medium entrance, the outlet of b-cooling medium, c-heating rod hole, d-material outlet.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is described further.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 is front view of the present utility model, is also a secondary perspective view simultaneously, and in Fig. 1, dotted line represents coolant guiding channel 2.A kind of machine head of the twin-screw extrusion with coolant guiding channel as shown in Figure 1, comprise crosshead body 1, is provided with runner 3 and heating rod hole c on described crosshead body 1, also is provided with coolant guiding channel 2 around described crosshead body 1 upper runner 3.Also be provided with cooling medium entrance a and cooling medium outlet b on crosshead body 1, be communicated with the two ends of described coolant guiding channel 2 respectively.The import of coolant guiding channel is arranged on the lower end of described crosshead body, and the outlet of described coolant guiding channel is arranged on the upper end of described crosshead body.The head of twin-screw extrusion machine head is illustrated in figure 1 the straightedge cylinder kept flat, and runner is arranged on wherein, runner perspective view as shown in Figure 3, and runner 3 is trapezoidal; As can be seen from Figure 1, described coolant guiding channel 2 is П shape half-twist to the right, and arranging like this is for trapezoidal runner 3 is enclosed in coolant guiding channel 2, with the shape of trapezoidal runner 3, is complementary, and makes to conduct heat or cooling even.Also be provided with temperature sensor on crosshead body 1, on the pipeline of described cooling medium inlet, be provided with magnetic valve; Described temperature sensor connection control unit, the break-make of the signal controlling magnetic valve that described control module transmits according to temperature sensor.Be provided with the needle valve of controlling cooling medium consumption on the pipeline of described cooling medium inlet.Be provided with temperature sensor on head, on the inlet ductwork of cooling medium, adopt magnetic valve to control the break-make of cooling medium, regulate the flow of cooling medium with needle valve.The temperature that head detected when temperature sensor is during higher than design temperature, and control module provides signal, and magnetic valve is opened, and the access cooling medium carrys out cooling machine head; When temperature sensor detects head temperature lower than design temperature, control module provides signal, closed electromagnetic valve, and cooling medium stops passing into head.Adopt the temperature control module of import, can make the temperature control precision of head reach ± 3 ℃.We can arrange required head technological temperature according to process conditions, with regard to good some materials that solved, the problem of thermal decomposition occur due to excess Temperature at the head place like this.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. the machine head of the twin-screw extrusion with coolant guiding channel, comprise crosshead body, be provided with runner and heating rod hole on described crosshead body, it is characterized in that, be provided with coolant guiding channel around described crosshead body upper runner, on the inlet ductwork of described coolant guiding channel, be provided with magnetic valve; Be provided with temperature sensor on described crosshead body, described temperature sensor connection control unit, described control module connects described magnetic valve.
2. the machine head of the twin-screw extrusion with coolant guiding channel according to claim 1, is characterized in that, described runner is trapezoidal, described coolant guiding channel be П shape be trapped among described trapezoidal runner around.
3. the machine head of the twin-screw extrusion with coolant guiding channel according to claim 1 and 2, it is characterized in that, the import of described coolant guiding channel is arranged on the lower end of described crosshead body, and the outlet of described coolant guiding channel is arranged on the upper end of described crosshead body.
4. the machine head of the twin-screw extrusion with coolant guiding channel according to claim 1 and 2, is characterized in that, is provided with the needle valve of controlling cooling medium consumption on the inlet ductwork of described coolant guiding channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203866952U CN203331383U (en) | 2013-07-01 | 2013-07-01 | Double-screw extruder head with cooling medium passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203866952U CN203331383U (en) | 2013-07-01 | 2013-07-01 | Double-screw extruder head with cooling medium passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203331383U true CN203331383U (en) | 2013-12-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203866952U Expired - Fee Related CN203331383U (en) | 2013-07-01 | 2013-07-01 | Double-screw extruder head with cooling medium passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203331383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113661040A (en) * | 2019-03-29 | 2021-11-16 | 东丽塑料美国股份有限公司 | Liquid cartridge element for cartridge extruder |
-
2013
- 2013-07-01 CN CN2013203866952U patent/CN203331383U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113661040A (en) * | 2019-03-29 | 2021-11-16 | 东丽塑料美国股份有限公司 | Liquid cartridge element for cartridge extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20190701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |