CN107159737A - A kind of extruder - Google Patents
A kind of extruder Download PDFInfo
- Publication number
- CN107159737A CN107159737A CN201710556450.2A CN201710556450A CN107159737A CN 107159737 A CN107159737 A CN 107159737A CN 201710556450 A CN201710556450 A CN 201710556450A CN 107159737 A CN107159737 A CN 107159737A
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- passage
- temperature
- side wall
- extrusion die
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C31/00—Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
- B21C29/02—Cooling or heating of containers for metal to be extruded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
- B21C29/04—Cooling or heating of press heads, dies or mandrels
Abstract
The invention discloses a kind of extruder, including：Recipient, extrusion die, liquid nitrogen injection device, the temperature-detecting device of the outlet temperature of detection extrusion die, the control device connected respectively with liquid nitrogen injection device and temperature-detecting device, when the outlet temperature that temperature-detecting device is detected is higher than temperature threshold, control device control liquid nitrogen injection device improves the injection rate of liquid nitrogen, the side wall of recipient injects the first liquid nitrogen passage of liquid nitrogen provided with feed flow nitrogen injection device, the side wall of extrusion die is provided with the second liquid nitrogen passage, and the first liquid nitrogen passage and the second liquid nitrogen passage are interconnected.By carrying out liquid nitrogen cooling to recipient and extrusion die, cooling effect is comprehensive, product quality is higher, and without be cooled by reducing extrusion speed, therefore production efficiency is higher.
Description
Technical field
The present invention relates to mechanical equipment technical field, more particularly to a kind of extruder.
Background technology
Extrusion forming produced as aluminium section bar in dominant technology and core link, be ensure product quality, shorten go into operation
Time and the key point for improving die life.But in extrusion process, the deformation and friction of metal result in aluminium alloy extruded
The increase of temperature, and the elevated degree of temperature can increase with the increase of extrusion speed.Extrude outlet temperature too high, can cause
Section bar mechanical properties decrease, surface oxidation change, even occur hot tearing.
Because of temperature height in order to avoid there is waste product in domestic enterprise at present, using relatively low extrusion speed, but aluminium
The low velocity of extruding, poor efficiency but hinders the further raising of extruded aluminum yield and quality.An existing extruder part
Cooled down using air cooling equipment, cooling effect is not obvious.
Therefore, how to provide a kind of cooling effect substantially and can guarantee that the extruder for extruding efficiency and product quality, be this
Art personnel are badly in need of the technical problem solved.
The content of the invention
It is an object of the invention to provide a kind of extruder, can effectively solve cooling effect substantially and extruding efficiency
The problems such as being difficult to take into account with product quality.
In order to solve the above technical problems, the invention provides following technical scheme：
A kind of extruder, including：Recipient, extrusion die, liquid nitrogen injection device, the outlet temperature of the detection extrusion die
Temperature-detecting device, the control device connected respectively with the liquid nitrogen injection device and the temperature-detecting device, when described
When the outlet temperature that temperature-detecting device is detected is higher than temperature threshold, the control device controls the liquid nitrogen injection dress
The injection rate for improving liquid nitrogen is put, the side wall of the recipient is provided with the first liquid nitrogen that liquid nitrogen is injected for the liquid nitrogen injection device
Passage, the side wall of the extrusion die is provided with the second liquid nitrogen passage, the first liquid nitrogen passage and the second liquid nitrogen passage phase
It is intercommunicated.
Preferably, one end away from the recipient is provided with die-cushion on the extrusion die, and the side wall of the die-cushion is provided with
3rd liquid nitrogen passage, the 3rd liquid nitrogen passage and the second liquid nitrogen passage are interconnected.
Preferably, the recipient includes liner, middle lining and outer lining, and the first liquid nitrogen passage is arranged on the liner
On lateral wall, the liquid nitrogen entrance that the side wall of the middle lining and the outer lining is provided with and the first liquid nitrogen passage is interconnected.
Preferably, the control device includes the flow control valve for being arranged on the liquid nitrogen entrance.
Preferably, the first liquid nitrogen passage include being arranged on inlet annular groove on the side wall of liner one and
Outlet ring-shaped groove on the liner another side wall, the middle part of sliding channel of the liner is provided with the communication inlet annular ditch
The spiral grooves of groove and the outlet ring-shaped groove, the outlet ring-shaped groove is connected with the second liquid nitrogen passage.
Preferably, the second liquid nitrogen passage is the multiple first through hole being uniformly arranged on the wall of the extrusion die side, institute
The axis of the axis and the extrusion die of stating first through hole is parallel to each other.
Preferably, the 3rd liquid nitrogen passage is multiple second through holes being uniformly arranged on the wall of the pad mould side, described
Second through hole and the first through hole are corresponded.
Preferably, the temperature-detecting device is infrared radiation thermometer.
Compared with prior art, above-mentioned technical proposal has advantages below：
A kind of extruder provided by the present invention, including：Recipient, extrusion die, liquid nitrogen injection device, detection extrusion die
The temperature-detecting device of outlet temperature, the control device connected respectively with liquid nitrogen injection device and temperature-detecting device, work as temperature
When the outlet temperature that degree detection means is detected is higher than temperature threshold, control device control liquid nitrogen injection device improves the note of liquid nitrogen
Enter amount, the side wall of recipient injects provided with feed flow nitrogen injection device to be set on the first liquid nitrogen passage of liquid nitrogen, the side wall of extrusion die
There is the second liquid nitrogen passage, the first liquid nitrogen passage and the second liquid nitrogen passage are interconnected.
When the extruder provided using the present invention carrys out extruded aluminium section, by temperature-detecting device to recipient outlet temperature
Detection, the outlet temperature detected is then sent to control device, control device judges the outlet temperature whether higher than height
Warm threshold value, if so, then controlling liquid nitrogen injection device by the first liquid nitrogen passage and the second liquid nitrogen passage to recipient and extrusion die
Inject the liquid nitrogen of appropriate amount, you can the temperature of reduction recipient and extrusion die, therefore can quickly and effectively be cooled down.Important
It is that by carrying out liquid nitrogen cooling to recipient and extrusion die, cooling effect is comprehensive, product quality is higher, and need not passes through
Extrusion speed is reduced to be cooled, therefore production efficiency is higher.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of technical scheme of the invention or of the prior art
The accompanying drawing used required in description is briefly described, it should be apparent that, drawings in the following description are some of the present invention
Embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also be attached according to these
Figure obtains other accompanying drawings.
A kind of partial cross structural representation for extruder that Fig. 1 is provided by a kind of embodiment of the invention.
Reference is as follows：
1 is recipient, and 10 be liquid nitrogen entrance, and 11 be liner, and 111 be inlet annular groove, 112 outlet ring-shaped grooves, 12
It is outer lining for middle lining, 13,2 be extrusion die, and 21 be the second liquid nitrogen passage, and 3 be liquid nitrogen injection device, and 31 be flow control valve, and 4 are
Die-cushion, 41 be the 3rd liquid nitrogen passage, and 5 be aluminium section bar.
Embodiment
Just as described in the background section, current pressuring machine mainly reduces going out for recipient by reducing extrusion speed
Mouth temperature, is easily reduced production efficiency.
On the basis of the studies above, the embodiments of the invention provide a kind of extruder,
Detection by temperature-detecting device to recipient outlet temperature, is then sent to control by the outlet temperature detected
Device processed, control device judges whether the outlet temperature is higher than high temperature threshold value, if so, then control liquid nitrogen injection device passes through first
Liquid nitrogen passage and the second liquid nitrogen passage inject the liquid nitrogen of appropriate amount to recipient and extrusion die, you can reduction recipient and extrusion die
Temperature, therefore can quickly and effectively be cooled down.By carrying out liquid nitrogen cooling to recipient and extrusion die, cooling effect is complete
Face, product quality are higher, and without being cooled by reducing extrusion speed, therefore production efficiency is higher.
In order that the above objects, features and advantages of the present invention can become apparent it is understandable, below in conjunction with the accompanying drawings to this hair
Bright embodiment is described in detail.
Detail is elaborated in the following description to fully understand the present invention.But the present invention can with it is a variety of not
It is same as other manner described here to implement, those skilled in the art can do class in the case of without prejudice to intension of the present invention
Like popularization.Therefore the present invention is not limited by following public embodiment.
It refer to Fig. 1, a kind of partial cross structure for extruder that Fig. 1 is provided by a kind of embodiment of the invention
Schematic diagram.
A kind of embodiment of the present invention provides a kind of extruder, including：Recipient 1, extrusion die 2, liquid nitrogen note
Enter device 3, detect extrusion die 2 outlet temperature temperature-detecting device, fill respectively with liquid nitrogen injection device 3 and temperature detection
The control device of connection is put, when the outlet temperature that temperature-detecting device is detected is higher than temperature threshold, control device control liquid
Nitrogen injection device 3 improves the injection rate of liquid nitrogen, and the side wall of recipient 1 injects the first of liquid nitrogen provided with feed flow nitrogen injection device 3
Liquid nitrogen passage, the side wall of extrusion die 2 is provided with the second liquid nitrogen passage 21, and the first liquid nitrogen passage and the second liquid nitrogen passage 21 are mutually interconnected
It is logical.
When the extruder provided using the present embodiment carrys out extruded aluminium section 5, recipient 1 is exported by temperature-detecting device
The detection of temperature, is then sent to control device by the outlet temperature detected, and control device judges whether the outlet temperature is high
In high temperature threshold value, if so, then control liquid nitrogen injection device 3 gives recipient 1 by the first liquid nitrogen passage and the second liquid nitrogen passage 21
The liquid nitrogen of appropriate amount is injected with extrusion die 2, you can the temperature of reduction recipient 1 and extrusion die 2, therefore can quickly and effectively carried out
Cooling.Importantly, by carrying out liquid nitrogen cooling to recipient 1 and extrusion die 2, cooling effect is comprehensive, product quality is higher,
And without being cooled by reducing extrusion speed, therefore production efficiency is higher.Wherein control device is preferably PID control
Device.
Further, one end away from recipient 1 is provided with die-cushion 4 on extrusion die 2, and the side wall of die-cushion 4 is provided with the 3rd liquid
Nitrogen passage 41, the 3rd liquid nitrogen passage 41 and the second liquid nitrogen passage 21 are interconnected.By setting the 3rd liquid nitrogen passage on die-cushion 4
41, can more fully it be cooled down.In addition for the ease of the circulation of liquid nitrogen, can on die-cushion 4 away from the one end of extrusion die 2 end face
On fall the disc of certain depth from the center of circle to the car of the second liquid nitrogen passage 21.
Further, recipient 1 includes liner 11, middle lining 12 and outer lining 13, and the first liquid nitrogen passage is arranged on liner 11
Lateral wall on, it is middle lining 12 and outer lining 13 side wall be provided with and the first liquid nitrogen passage be interconnected liquid nitrogen entrance 10.It will squeeze
Pressure cylinder 1 is set to split type telescoping structure, is conducive to safeguarding.First liquid nitrogen passage is arranged on to the outside of liner 11 in addition
Be conducive to the rapid purpose for realizing cooling on wall.
In one embodiment that the present invention is provided, control device includes the flow control valve 31 for being arranged on liquid nitrogen entrance 10.
By controlling the aperture of flow control valve 31 to can control the flow of liquid nitrogen, liquid nitrogen flow is bigger, cooling extent is bigger.
Further, the first liquid nitrogen passage includes the inlet annular groove 111 being arranged on the side wall of liner 11 1 and interior
The outlet ring-shaped groove 112 on 11 another side walls is served as a contrast, the middle part of sliding channel of liner 11 is provided with the He of communication inlet annular groove 111
The spiral grooves of ring-shaped groove 112 are exported, outlet ring-shaped groove 112 is connected with the second liquid nitrogen passage 21.Pass through ring-shaped groove energy
It is enough that recipient 1 is equably cooled, and then improve cooling effect.
Further, the second liquid nitrogen passage 21 is the multiple first through hole being uniformly arranged on the side wall of extrusion die 2, first
The axis of through hole and the axis of extrusion die 2 are parallel to each other.Eight along the circumferential direction uniform point is set wherein preferably on extrusion die 2
The first through hole of cloth, also can set an appropriate number of first through hole, the present embodiment is not done to this according to the diameter of extrusion die 2 certainly
Limit.
In addition, the 3rd liquid nitrogen passage 41 is multiple second through holes being uniformly arranged on the wall of pad mould side, the second through hole and the
One through hole is corresponded.
Further, temperature-detecting device is preferably infrared radiation thermometer.Wherein infrared radiation thermometer uses multi-wavelength detection side
Formula, the infrared radiation thermometer is made up of the part such as optical system, photodetector, signal amplifier and signal transacting, display output.
The target that optical system is collected in visual field surveys the infrared energy of wave band, emissivity, is changed into phase on photodetector
The electric signal answered.The signal pass through amplifier and signal processing circuit, and according to default algorithm and backs correction after
It is changed into the temperature value of measured target.The default algorithm is its special compensation operational software.During measurement, considering to survey aluminium
After infrared energy, emissivity and surveyed wavelength, then accurate temperature calculated by special compensation computing.
It should also be noted that, herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
There is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to contain
Lid nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (8)
1. a kind of extruder, it is characterised in that including：Recipient, extrusion die, liquid nitrogen injection device, the detection extrusion die
The temperature-detecting device of outlet temperature, the control dress connected respectively with the liquid nitrogen injection device and the temperature-detecting device
Put, when the outlet temperature that the temperature-detecting device is detected is higher than temperature threshold, the control device control is described
Liquid nitrogen injection device improves the injection rate of liquid nitrogen, and the side wall of the recipient is provided with injects liquid nitrogen for the liquid nitrogen injection device
The first liquid nitrogen passage, the side wall of the extrusion die is provided with the second liquid nitrogen passage, the first liquid nitrogen passage and described second
Liquid nitrogen passage is interconnected.
2. extruder according to claim 1, it is characterised in that one end away from the recipient is set on the extrusion die
There is die-cushion, the side wall of the die-cushion is provided with the 3rd liquid nitrogen passage, the 3rd liquid nitrogen passage and the second liquid nitrogen passage phase
It is intercommunicated.
3. extruder according to claim 2, it is characterised in that the recipient includes liner, middle lining and outer lining, described
First liquid nitrogen passage is arranged on the lateral wall of the liner, and the side wall of the middle lining and the outer lining is provided with and described first
The interconnected liquid nitrogen entrance of liquid nitrogen passage.
4. extruder according to claim 3, it is characterised in that the control device includes being arranged on the liquid nitrogen entrance
Flow control valve.
5. extruder according to claim 4, it is characterised in that the first liquid nitrogen passage includes being arranged on the liner
The outlet ring-shaped groove on inlet annular groove and the liner another side wall on one side wall, the middle part of the liner
Side wall provided with the spiral grooves for linking up the inlet annular groove and the outlet ring-shaped groove, the outlet ring-shaped groove and
The second liquid nitrogen passage connection.
6. extruder according to claim 5, it is characterised in that the second liquid nitrogen passage is described crowded to be uniformly arranged on
The axis of multiple first through hole on die-side wall, the axis of the first through hole and the extrusion die is parallel to each other.
7. extruder according to claim 6, it is characterised in that the 3rd liquid nitrogen passage is to be uniformly arranged on the pad
Multiple second through holes on the wall of mould side, second through hole and the first through hole are corresponded.
8. extruder according to claim 7, it is characterised in that the temperature-detecting device is infrared radiation thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710556450.2A CN107159737A (en) | 2017-07-10 | 2017-07-10 | A kind of extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710556450.2A CN107159737A (en) | 2017-07-10 | 2017-07-10 | A kind of extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107159737A true CN107159737A (en) | 2017-09-15 |
Family
ID=59823462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710556450.2A Pending CN107159737A (en) | 2017-07-10 | 2017-07-10 | A kind of extruder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500076A (en) * | 2018-05-22 | 2018-09-07 | 浙江海亮新材料有限公司 | A kind of device and method accurately controlling aluminium section hot-extrusion die local temperature |
| CN108595059A (en) * | 2018-04-26 | 2018-09-28 | 惠州市华星光电技术有限公司 | Touch-control display module, touch-control display panel and touch control display apparatus |
| CN111887355A (en) * | 2020-09-01 | 2020-11-06 | 河南省杂粮先生食品有限公司 | Method for producing granulated feed through extrusion process under normal temperature condition |
| CN114260329A (en) * | 2021-05-07 | 2022-04-01 | 大连理工大学 | Ultra-low temperature extrusion forming method and device for high-entropy alloy thin-walled tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108595059A (en) * | 2018-04-26 | 2018-09-28 | 惠州市华星光电技术有限公司 | Touch-control display module, touch-control display panel and touch control display apparatus |
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| CN111887355A (en) * | 2020-09-01 | 2020-11-06 | 河南省杂粮先生食品有限公司 | Method for producing granulated feed through extrusion process under normal temperature condition |
| CN114260329A (en) * | 2021-05-07 | 2022-04-01 | 大连理工大学 | Ultra-low temperature extrusion forming method and device for high-entropy alloy thin-walled tube |
| CN114260329B (en) * | 2021-05-07 | 2022-12-06 | 大连理工大学 | Ultra-low temperature extrusion forming method and device for high-entropy alloy thin-walled tube |
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