CN202011143U - Temperature control device for feed port of extruder - Google Patents
Temperature control device for feed port of extruder Download PDFInfo
- Publication number
- CN202011143U CN202011143U CN2011200723939U CN201120072393U CN202011143U CN 202011143 U CN202011143 U CN 202011143U CN 2011200723939 U CN2011200723939 U CN 2011200723939U CN 201120072393 U CN201120072393 U CN 201120072393U CN 202011143 U CN202011143 U CN 202011143U
- Authority
- CN
- China
- Prior art keywords
- cooling water
- charge door
- temperature
- feed port
- valve
- 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 - 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
- B29C48/92—Measuring, controlling or regulating
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
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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
- 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
- B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/924—Barrel or housing
-
- 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
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
- B29C2948/92971—Fluids, e.g. for temperature control or of environment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a temperature control device for a feed port of an extruder, which comprises a machine barrel, a screw rod and a hopper, wherein the feed port of the hopper passes through the machine barrel to be arranged corresponding to a screw pit of the screw rod; a cooling device is arranged at the feed port and connected with a cooling water pipeline by a cooling water valve; the cooling water valve is connected with a controller by a valve driver; a temperature sensor is also arranged at the feed port and connected with the controller; and the temperature sensor is used for detecting the temperature of the outer wall of the feed port and controlling the opening and closing of the cooling water valve by the valve driver. The temperature of the feed port of the extruder is detected, and the detected material temperature is compared with a preset valve, so that the opening and closing of the cooling water are controlled. The `bridging` situation caused by over high temperature of the feed port is avoided, the blockage of the feed port is also prevented, the use amount of cooling water is reduced, and the effects of energy saving and water saving are achieved.
Description
Technical field
The utility model belongs to the automatic control technology field, particularly a kind of temperature control equipment of extruder charge door.
Background technology
The charge door temperature of plastic extruder also is called as plastics entrance area temperature sometimes, sets the temperature that is referred to as zone zero in the handbook at some extruder temperatures.As shown in Figure 1, charge door 14 is to be positioned at the shoot material cylinder part of storage bin hopper below 13, and plastics fall under charge door the spiral shell hole of screw rod 12.But the charge door temperature of existing extruder does not all have controlled when producing or monitoring, and its inside has only some cooling pipes to be responsible for keeping the temperature of charge door under a low-level state.
Above-described cooling is meant cools off the charge door place, because the material mouth if temperature is too high, Gu expect and can form " bridge formation " at the charge door place, stops up in the charge door place, thereby influence the transfer efficiency of feeding section, it is cooled so cooling jacket is set herein.In fact, the temperature requirement of avoiding most plastics to produce " bridge formation " phenomenon is no more than vitrification point (Tg) and gets final product, and because the cooling water of charge door is to continue to flow, the actual temperature that causes charge door will cause like this far below above-mentioned requirements:
The first, the waste of water resource is because the general direct discharging of cooling water is in addition not recycling, so too much water has caused the waste of water resource; In addition, because water has passed through metallic conduit, too much water has also been accelerated Corrosion of Pipeline to a certain extent;
The second, the waste of energy, preparation cooling water and driving cooling-water flow all need consumes energy, and the unnecessary cooling water of too much use obviously can be wasted energy; In addition, material needs to be heated after entering machine barrel 11, need absorb more heat again when the material of low temperature is heated excessively in machine barrel, and then expend more energy.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to provide a kind of temperature control equipment that is arranged on the extruder charge door, to realize that the charge door of extruder is carried out temperature control.
The technical scheme that the utility model adopted: a kind of temperature control equipment of extruder charge door, comprise machine barrel, screw rod and hopper, the charge door of described hopper passes machine barrel and cheats corresponding setting with the spiral shell of screw rod, described charge door place is provided with cooling device, described cooling device is connected with cooling water pipeline by cooling water valve, and cooling water valve is connected with controller by valve driver; Described charge door place also is provided with temperature sensor, and this temperature sensor is connected with controller, is used to detect the temperature of charge door outer wall and the unlatching by valve driver control cooling water valve or closes.
Above-mentioned cooling device is the cooling water ring, and this cooling water ring is arranged on the machine barrel outer wall at charge door place.
The said temperature sensor is connected with controller by analog to digital converter.
Above-mentioned controller also is connected with setup unit, display unit respectively, is used to set the temperature limit value of charge door, shows current temperature value and other parameters simultaneously.
Above-mentioned cooling water valve is arranged on the water inlet pipe of cooling water pipeline.
The utility model compares according to detected material temperature and setting value by detecting the temperature at extruder charge door place, and then controls the unlatching of cooling water or close.When detected material temperature is lower than setting value, suspends it is cooled off; When detected material temperature is higher than setting value, connects cooling water it is cooled off, thereby realize the temperature of charge door is controlled within the reasonable range.Both avoid " bridge formation " phenomenon of causing because of the temperature at charge door place is too high, material mouthful is stopped up, can reduce the use amount of cooling water again, had realized effect energy-conservation and that economize on water.
Description of drawings
Fig. 1 is the structural representation of charge door in the extruder;
Fig. 2 is the structural representation of the extruder charge door after the utility model improves;
Fig. 3 is the hardware block diagram of temperature control equipment described in the utility model;
Fig. 4 is temperature control principle figure of the present utility model.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing.
As shown in Figure 2, the temperature control equipment of extruder charge door described in the utility model comprises machine barrel 11, screw rod 12 and hopper 13, and the charge door 14 of described hopper 13 passes machine barrel 11 and cheats corresponding setting with the spiral shell of screw rod 12, and described charge door place is provided with cooling device.This cooling device is the cooling water ring 15 that is arranged on the machine barrel outer wall at charge door place, and described cooling water ring 15 is connected with cooling water pipeline 19 (water inlet pipe) by cooling water valve 17, and cooling water valve 17 is connected with controller 16 by valve driver; Described charge door place also is provided with temperature sensor 18, and this temperature sensor is connected with controller 16, is used to detect the temperature of charge door 14 outer walls, and the unlatching by valve driver control cooling water valve 17 or close.
As shown in Figure 3, hardware structure diagram of the present utility model, described controller 16 is connected with valve driver with temperature sensor by the I/O interface circuit, wherein, described temperature sensor is used to detect the temperature of charge door outer wall, and detected temperature transition become aanalogvoltage output, convert the aanalogvoltage of sensor output to data signal by analog to digital (A/D) change-over circuit and give controller.Described controller is made comparisons temperature value that collects and the temperature that sets in advance, and makes corresponding judgment according to comparative result, drives the switch motion of magnetic valve by output control circuit.When detected material temperature was lower than setting value, the magnetic valve of cooling water cut out automatically, suspended cooling; When detected material temperature was higher than setting value, the magnetic valve of cooling water was opened automatically, cools off.In addition, described controller also is connected with setup unit, display unit respectively, and the user can set the temperature limit value of charge door at inputting interface, can show current temperature value and other parameters simultaneously.
Be illustrated in figure 4 as temperature control principle figure of the present utility model, wherein: Tsp is the desired temperature of charge door, and Gc is a temperature controller, and Gp is the charge door temperature, and u is that valve drives signal, and T is the charge door actual temperature.After the said temperature sensor detects the actual temperature T that obtains charge door, the desired temperature Tsp of this temperature value and charge door is compared, according to comparative result, send valve by temperature controller Gc and drive the unlatching of signal u control cooling water valve or close, and then control charge door temperature Gp is in default temperature range.
The utility model is on the basis of existing extruder, detect and control by temperature, both avoided " bridge formation " phenomenon of causing because of the temperature at charge door place is too high, material mouthful is stopped up its charge door, can reduce too much cooling water use amount again, realize effect energy-conservation and water saving.
Claims (5)
1. the temperature control equipment of an extruder charge door, comprise machine barrel, screw rod and hopper, the charge door of described hopper passes machine barrel and cheats corresponding setting with the spiral shell of screw rod, described charge door place is provided with cooling device, it is characterized in that, described cooling device is connected with cooling water pipeline by cooling water valve, and cooling water valve is connected with controller by valve driver; Described charge door place also is provided with temperature sensor, and this temperature sensor is connected with controller, is used to detect the temperature of charge door outer wall and the unlatching by valve driver control cooling water valve or closes.
2. according to the temperature control equipment of the described extruder charge door of claim 1, it is characterized in that described cooling device is the cooling water ring, this cooling water ring is arranged on the machine barrel outer wall at charge door place.
3. according to the temperature control equipment of the described extruder charge door of claim 1, it is characterized in that described temperature sensor is connected with controller by analog to digital converter.
4. according to the temperature control equipment of the described extruder charge door of arbitrary claim in the claim 1 to 3, it is characterized in that described controller also is connected with setup unit, display unit respectively.
5. according to the temperature control equipment of the described extruder charge door of arbitrary claim in the claim 1 to 3, it is characterized in that described cooling water valve is arranged on the water inlet pipe of cooling water pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200723939U CN202011143U (en) | 2011-03-18 | 2011-03-18 | Temperature control device for feed port of extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200723939U CN202011143U (en) | 2011-03-18 | 2011-03-18 | Temperature control device for feed port of extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202011143U true CN202011143U (en) | 2011-10-19 |
Family
ID=44781749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200723939U Expired - Lifetime CN202011143U (en) | 2011-03-18 | 2011-03-18 | Temperature control device for feed port of extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202011143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688125A (en) * | 2018-04-09 | 2018-10-23 | 浙江工业大学 | A kind of extrusion equipment of thermoplastic |
| CN109049615A (en) * | 2018-07-18 | 2018-12-21 | 金杯电工衡阳电缆有限公司 | Extruder barrel improved structure |
-
2011
- 2011-03-18 CN CN2011200723939U patent/CN202011143U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688125A (en) * | 2018-04-09 | 2018-10-23 | 浙江工业大学 | A kind of extrusion equipment of thermoplastic |
| CN109049615A (en) * | 2018-07-18 | 2018-12-21 | 金杯电工衡阳电缆有限公司 | Extruder barrel improved structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |