CN104149310A - Heating device of plastic extruding machine - Google Patents
Heating device of plastic extruding machine Download PDFInfo
- Publication number
- CN104149310A CN104149310A CN201410396452.6A CN201410396452A CN104149310A CN 104149310 A CN104149310 A CN 104149310A CN 201410396452 A CN201410396452 A CN 201410396452A CN 104149310 A CN104149310 A CN 104149310A
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- CN
- China
- Prior art keywords
- oil
- machine barrel
- machine
- heater
- heat
- 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.)
- Pending
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Classifications
-
- 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
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/832—Heating
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a heating device of a plastic extruding machine. The heating device comprises a machine barrel provided with a screw rod in an inner cavity, and a rock wool insulating layer coating the machine barrel; the heating device is characterized in that the machine barrel further comprises an outer cavity fully filled with heat conducting oil and formed by double-layer body walls, an oil inlet and an oil outlet; and the oil inlet and the oil outlet are connected with an outlet and an inlet of an oil circulating temperature controller. Compared with the prior art, heat provided by the oil circulating temperature controller is contacted with the machine barrel through the heat conducting oil in all directions, the contact area is the largest, the transfer efficiency is the highest, and the heat transfer is the most uniform, so that plastic particles are evenly fused; the actual temperature is not higher than the set temperature, so that the temperature of the machine barrel stably varies without being too high or too low, and the temperature quickly rises again after the machine is stopped; and as the heat conducting oil fills an interlayer of the machine barrel without corrosivity, the service life of the machine barrel can be prolonged.
Description
Technical field
The present invention relates to plastics extruding machine technical field of structures, specifically a kind of extruding machine heater.
Background technology
The operation principle of extruding machine is to utilize the screw rod of given shape, in the machine barrel of heating, rotate, the plastics of sending here in hopper are pushed forward, it is melting that plastics are plastified equably, by head and difform mould, make plastic extrusion become the plastic layer of successional required various shapes.Plastic grain melting is completed in extruder barrel, and the turning effort through screw rod, makes plastics become plastic rheid from granular solids.The source that plastics obtain heat at plastic phase has aspect two: caloric requirement originally obtains from machine barrel is outside; After normal driving, obtaining of heat is to be compressed by screw rod rotation material, in shearing, whipping process, produces with friction and the intermolecular interior friction of material of machine tube inner wall.At present, the originally acquisition of heat of the screw extruder of plastic industry generally adopts the heat that heater element is produced to be delivered on machine barrel by heat conducting mode.That heater element contacts with machine barrel is tightr, contact area is larger, conduction efficiency is higher, but heater element contacts impossible seamless coverage in reality with machine barrel, certainly exist the inhomogeneous situation of heat conduction, thereby cause plastic grain melting quality uneven and product unstable; Simultaneously when the actual temperature of machine barrel surpasses design temperature, must be cooling by the water interlayer water flowing of machine barrel, cause like this temperature of machine barrel to decline rapidly, cause the temperature of machine barrel fluctuated, and again heat a large amount of electric energy of consumption after shutting down; And, because the water inside the water interlayer of machine barrel must have certain corrosivity to machine barrel material, affect the service life of machine barrel.
For this reason, study a kind of simple process, rational in infrastructure, energy-efficient extruding machine heater just becomes the challenge problem of extruding machine industry.
Summary of the invention
The object of the invention is in order to solve the problem of prior art, provide the seamless contact of a kind of heat generating component and machine barrel, barrel zone temperature relative constant, heat up cooling rapidly, the low extruding machine heater of thermal losses.
Heater provided by the invention comprises the machine barrel 2 that screw rod 1 is set in its inner chamber 20, the rock wool heat-preservation layer 4 of coated described machine barrel 2, it is characterized in that described machine barrel 2 also has exocoel 23, oil-in 21 and the oil-out 22 that consists of falling heat-transfer oil double-deck body wall, oil-in 21 is connected with the export and import of oily loop temperature-control machine with oil-out 22.
Further preferred version is, in the exocoel 23 of described machine barrel 2, spoiler 24 is set on the internal layer body wall of double-deck body wall, described spoiler 24 from oil-out 22 helical forms to oil-in 21 steering wheels around.
Further preferred version is, the outer wall of described machine barrel 2 also arranges more than one heating element heater 3, described rock wool heat-preservation layer 4 coated described machine barrel 2 and described heating element heater 3.
Described heating element heater 3 is electromagnetic type heater.
Described heating element heater 3 is electrothermal heater.
The invention still further relates to comprise this extruding machine heater extruding machine.
Beneficial effect of the present invention is: the heat that oily loop temperature-control machine provides contacts by conduction oil and machine barrel are comprehensive, contact area is maximum, conduction efficiency is the highest, heat conduction is the most even, thereby make plastic grain melting even, actual temperature can not surpass design temperature, causes the variations in temperature of machine barrel steady, can be not fluctuated, and after shutting down, again heat rapidly; And, inside the interlayer due to machine barrel, be conduction oil, there is no corrosivity, can improve the service life of machine barrel.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of spoiler of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1: with reference to Fig. 1.
This heater comprises the machine barrel 2 that screw rod 1 is set in its inner chamber 20, the rock wool heat-preservation layer 4 of coated described machine barrel 2, it is characterized in that described machine barrel 2 also has exocoel 23, oil-in 21 and the oil-out 22 that consists of falling heat-transfer oil double-deck body wall, oil-in 21 is connected with the export and import of oily loop temperature-control machine with oil-out 22.
Compared with prior art, the heat that oil loop temperature-control machine provides contacts by conduction oil and machine barrel are comprehensive, contact area is maximum, conduction efficiency is the highest, and heat conduction is the most even, thereby makes plastic grain melting even, actual temperature can not surpass design temperature, cause the variations in temperature of machine barrel steady, can be not fluctuated, and after shutting down, again heat rapidly; And, inside the interlayer due to machine barrel, be conduction oil, there is no corrosivity, can improve the service life of machine barrel.
Embodiment 2: with reference to Fig. 1,2.
Other are identical with embodiment 1, in the exocoel of only described machine barrel 2 23, spoiler 24 is set on the internal layer body wall of double-deck body wall, described spoiler 24 from oil-out 22 helical forms to oil-in 21 steering wheels around.
Adopt this technical scheme, on this helical form spoiler there is angle with the flow direction at the fluid of this point in the tangential direction of any point, conduction oil mobile in cavity forms vortex eddy current, due in vortex flow, the kinematical properties of eddy current has determined that the micelle of conduction oil is around the tangential direction rotation of helical form spoiler, tangent with vortex vector everywhere, be equivalent to have the micelle of a unlimited fluid in large vortex eddy current, to spin, collide spoiler, greatly improved hot conduction and heat exchanger effectiveness.
Embodiment 3: with reference to Fig. 1,2.
Other are identical with embodiment 2, and only the outer wall of machine barrel 2 also arranges more than one heating element heater 3, described rock wool heat-preservation layer 4 coated described machine barrel 2 and described heating element heater 3.Described heating element heater 3 is electromagnetic type heater.
Adopt this technical scheme, first the heat producing due to electromagnetic type heater conducts to conduction oil, then conducts to machine barrel 2 internal layer body walls by conduction oil, so the variations in temperature of machine barrel is more steady, more can be not fluctuated.The stack of two kinds of mode of heatings, can further shorten preheating time.
Embodiment 4: with reference to Fig. 1,2.
Other are identical with embodiment 3, and only described heating element heater 3 is electrothermal heater.
The concrete application approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (6)
1. an extruding machine heater, comprise the machine barrel (2) that screw rod (1) is set in its inner chamber (20), the rock wool heat-preservation layer (4) of coated described machine barrel (2), it is characterized in that described machine barrel (2) also has exocoel (23), oil-in (21) and the oil-out (22) that consists of falling heat-transfer oil double-deck body wall, oil-in (21) is connected with the export and import of oily loop temperature-control machine with oil-out (22).
2. a kind of extruding machine heater according to claim 1, it is characterized in that in the exocoel (23) of described machine barrel (2), spoiler (24) be set on the internal layer body wall of double-deck body wall, described spoiler (24) from oil-out (22) helical form to oil-in (21) steering wheel around.
3. a kind of extruding machine heater according to claim 1 and 2, the outer wall that it is characterized in that described machine barrel (2) also arranges more than one heating element heater (3), the described coated described machine barrel (2) of rock wool heat-preservation layer (4) and described heating element heater (3).
4. a kind of extruding machine heater according to claim 3, is characterized in that described heating element heater (3) is electromagnetic type heater.
5. a kind of extruding machine heater according to claim 3, is characterized in that described heating element heater (3) is electrothermal heater.
6. comprise claim 1,2,4,5 arbitrary described a kind of extruding machine heaters extruding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396452.6A CN104149310A (en) | 2014-08-13 | 2014-08-13 | Heating device of plastic extruding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396452.6A CN104149310A (en) | 2014-08-13 | 2014-08-13 | Heating device of plastic extruding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104149310A true CN104149310A (en) | 2014-11-19 |
Family
ID=51875020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410396452.6A Pending CN104149310A (en) | 2014-08-13 | 2014-08-13 | Heating device of plastic extruding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104149310A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943130A (en) * | 2015-07-08 | 2015-09-30 | 天津煊生源高分子科技有限公司 | Heating component for plastic extruding machine |
| CN107199686A (en) * | 2017-06-16 | 2017-09-26 | 苏州金纬管道科技有限公司 | The humidity control system of plastic extruder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2210373Y (en) * | 1994-02-19 | 1995-10-18 | 吕志元 | Vortex flow plate type and plate-shell type heat exchanger with automatic scale removing function |
| CN201552685U (en) * | 2009-12-10 | 2010-08-18 | 张昌维 | Energy-saving regenerated plastic extrusion machine |
| CN202965176U (en) * | 2012-12-10 | 2013-06-05 | 杨超 | Environment-friendly and energy-saving plastic extrusion equipment |
| CN103317731A (en) * | 2013-05-29 | 2013-09-25 | 北京华腾佳和科技有限公司 | Device and method for preparation of ultra-high molecular-weight polyethylene sheet |
| CN204019958U (en) * | 2014-08-13 | 2014-12-17 | 烟台德赛机械制造有限公司 | A kind of extruding machine heater |
-
2014
- 2014-08-13 CN CN201410396452.6A patent/CN104149310A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2210373Y (en) * | 1994-02-19 | 1995-10-18 | 吕志元 | Vortex flow plate type and plate-shell type heat exchanger with automatic scale removing function |
| CN201552685U (en) * | 2009-12-10 | 2010-08-18 | 张昌维 | Energy-saving regenerated plastic extrusion machine |
| CN202965176U (en) * | 2012-12-10 | 2013-06-05 | 杨超 | Environment-friendly and energy-saving plastic extrusion equipment |
| CN103317731A (en) * | 2013-05-29 | 2013-09-25 | 北京华腾佳和科技有限公司 | Device and method for preparation of ultra-high molecular-weight polyethylene sheet |
| CN204019958U (en) * | 2014-08-13 | 2014-12-17 | 烟台德赛机械制造有限公司 | A kind of extruding machine heater |
Non-Patent Citations (1)
| Title |
|---|
| 李凡等: "《空气源热泵热水器》", 31 December 2012, 重庆大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943130A (en) * | 2015-07-08 | 2015-09-30 | 天津煊生源高分子科技有限公司 | Heating component for plastic extruding machine |
| CN107199686A (en) * | 2017-06-16 | 2017-09-26 | 苏州金纬管道科技有限公司 | The humidity control system of plastic extruder |
| CN107199686B (en) * | 2017-06-16 | 2022-12-20 | 常州金纬管道科技有限公司 | Temperature adjusting system of plastic extruder |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141119 |
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| RJ01 | Rejection of invention patent application after publication |