CN105235187A - Plastic screw extruder - Google Patents
Plastic screw extruder Download PDFInfo
- Publication number
- CN105235187A CN105235187A CN201510804478.4A CN201510804478A CN105235187A CN 105235187 A CN105235187 A CN 105235187A CN 201510804478 A CN201510804478 A CN 201510804478A CN 105235187 A CN105235187 A CN 105235187A
- Authority
- CN
- China
- Prior art keywords
- machine barrel
- screw rod
- feeding cylinder
- plc
- screw
- 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
Links
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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
-
- 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
- B29C48/50—Details of extruders
- B29C48/505—Screws
-
- 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
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
- B29C48/762—Vapour stripping
-
- 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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- 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
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a plastic screw extruder which comprises a feeding cylinder, a PLC, a vacuum pump, a machine barrel and a screw, wherein the feeding cylinder is arranged at the feed opening of the machine barrel; a material level sensor is arranged at the upper end of the inner wall of the feeding cylinder; a negative pressure fan is arranged above the feeding cylinder; the negative pressure fan and the material level sensor are connected with the PLC; the screw is arranged in the machine barrel and connected with a motor; the screw comprises a positive rotation screw, a centre rotating shaft and a reverse rotation screw; a plurality of wheel fins are arranged on the centre rotating shaft; an electrical heating jacket is arranged on the periphery of the machine barrel; a plurality of heat preservation housings are arranged outside the electrical heating jacket at intervals; rock wool is arranged in the heat preservation jacket; a temperature sensor is arranged in the machine barrel; and the vacuum pump is communicated with the machine barrel through a vacuum pipeline. The plastic screw extruder improves the product quality, realizes automatic heating control and automatic feeding, prevents material from overflowing from the feeding cylinder and greatly reduces the working strength of workers.
Description
Technical field
The present invention relates to a kind of extruder, specifically a kind of plastics screw extruding machine.
Background technology
Extruder is widely used in the production of the product such as plastics, rubber.Plastic extruding forming is mechanical, and oneself becomes one of machine of being used widely in plastic processing industry.Screw rod is positioned at extruder inner hub location, and main effect has been the transmission of mixture, plasticizing, the function such as shaping, existing screw extruder has pressure and does not but plastify shear-mixed effect, joins mixture manufacturing do not mix power to plurality of raw materials, and energy consumption is large, yield poorly; Material feed in raw material at present by a dead lift to feeding cylinder, whole process wastes time and energy, cause production efficiency low, when the raw material supplying of charging aperture is too much, the easy situation producing blocking, and when charging aperture raw material supplying is not enough, the situation of waste motor idle running can be produced again, and whether the feeding cylinder of extruder is filled it up with and is all normally observed with eyesight by workman, therefore need workman to observe the situation of material feed hopper at any time when extruder work, in addition, the temperature in screw channel is unstable, causes product quality to decline.
Summary of the invention
The object of the present invention is to provide a kind of plastics screw extruding machine, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of plastics screw extruding machine, comprise feeding cylinder, PLC, vavuum pump, machine barrel, screw rod and mould, described machine barrel is provided with charging aperture and discharging opening, described feeding cylinder is arranged on the charging aperture of machine barrel, described feeding cylinder inwall upper end is provided with level sensor, the top of described feeding cylinder arranges negative-pressure air fan, described negative-pressure air fan is connected with PLC respectively with level sensor, described screw rod is arranged in machine barrel, described screw rod is connected with motor, described screw rod comprises positive rotation direction screw rod, central rotating shaft and derotation are to screw rod, described central rotating shaft is provided with multiplely takes turns fin, the center line of described cutting planes and central rotating shaft of taking turns fin is 45 °, the anglec of rotation of adjacent wheel fin is 60 °, described discharging opening connecting mold, described machine barrel periphery is provided with electric heating cover, described electric heating cover outer spacer is provided with multiple insulation shell, in described insulation shell, rock wool is set, temperature sensor is provided with in described machine barrel, described vavuum pump is communicated with machine barrel by vacuum pipe, described temperature sensor and vavuum pump are connected respectively to PLC.
As the further scheme of the present invention: described positive rotation direction screw rod, central rotating shaft and derotation are integral type to screw rod.
As the present invention's further scheme: before and after each described insulation shell, both sides arrange air inlet and air outlet respectively, each described air inlet is connected with blower fan, and blower fan is connected with PLC.
As the present invention's further scheme: described PLC is provided with display screen and operated key.
Compared with prior art, the invention has the beneficial effects as follows: the screw rod of setting enhances the plasticizing shear effect of extruder, improves product quality; Realize automatically controlling heating, ensure that the temperature stabilization in screw channel; The steam produced in inherent for machine barrel heating process can be taken away by the vavuum pump arranged, and produces aeration quality to avoid follow-up product; Realize automation to feed in raw material, prevent feeding cylinder flash, greatly reduce the working strength of workman.
Accompanying drawing explanation
Fig. 1 is the structural representation of plastics screw extruding machine.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Refer to Fig. 1, a kind of plastics screw extruding machine, comprise feeding cylinder 2, PLC 5, vavuum pump 9, machine barrel 11, screw rod 12 and mould 18, described machine barrel 9 is provided with charging aperture 4 and discharging opening 17, described feeding cylinder 2 is arranged on the charging aperture 4 of machine barrel 11, described feeding cylinder 2 inwall upper end is provided with level sensor 3, the top of described feeding cylinder 2 arranges negative-pressure air fan 1, described negative-pressure air fan 1 is connected with PLC 5 respectively with level sensor 3, described screw rod 12 is arranged in machine barrel 11, described screw rod 12 is connected with motor 10, described screw rod 12 comprises positive rotation direction screw rod 13, central rotating shaft 14 and derotation are to screw rod 16, described central rotating shaft 14 is provided with multiplely takes turns fin 15, described positive rotation direction screw rod 13, central rotating shaft 14 and derotation are integral type to screw rod 16, the center line of described cutting planes and central rotating shaft 14 of taking turns fin 15 is 45 °, the anglec of rotation of adjacent wheel fin 15 is 60 °, described discharging opening 17 connecting mold 18, described machine barrel 11 periphery is provided with electric heating cover 19, described electric heating cover 19 outer spacer is provided with multiple insulation shell 20, in described insulation shell 20, rock wool 21 is set, before and after each described insulation shell, both sides arrange air inlet and air outlet respectively, each described air inlet is connected with blower fan, temperature sensor 8 is provided with in described machine barrel 11, described vavuum pump 9 is communicated with machine barrel 11 by vacuum pipe, described temperature sensor 8 is connected respectively to PLC 5 with vavuum pump 9, described PLC 5 is provided with display screen 6 and operated key 7.
Operation principle of the present invention is: carry out feeding by feeding cylinder 2 pairs of machine barrels 11, level sensor 3 is controlled by PLC 5, when the material level that level sensor 3 detects in feeding cylinder 2 is expired, signal will be passed to PLC 5, PLC 5 controls negative-pressure air fan 1 and stops, suspend charging, thus it is reinforced to achieve automation, prevent feeding cylinder 2 flash, material arrives with multiple central rotating shaft 14 of taking turns fin 15 under the extruding and transmission of positive rotation direction screw rod 13, material shears plasticizing here, and the derotation being issued to rear end in the transmission effect of wheel fin 15 further extrudes blended to screw rod 16, be expelled in mould 18 shaping by discharging opening 17 after plasticizing completely, the heat that electric heating cover 19 distributes comes by the rock wool 21 in insulation shell 20 and extraneous air are isolated, in order to the temperature in machine barrel 11 is remained within the scope of set point of temperature, the temperature sensor 8 arranged in machine barrel 11 is connected with PLC 5, the temperature in machine barrel 11 can be monitored at any time, when overtemperature, electric heating cover 19 suspends heating, the blower fan be connected with each insulation shell 20 air inlet, cooling-air is entered from air inlet and blows out from the air outlet of opposite side, insulation shell 20 is lowered the temperature, keeps the stable of temperature.
The present invention controls heating automatically by PLC 5, electric heating cover 19 arranges insulation shell 20, and insulation shell 20 outside is connected with blower fan simultaneously, avoids scattering and disappearing of electric heating cover 19 heat, ensure that the temperature stabilization in screw channel, substantially increase the utilization rate of electric energy; By arranging vacuum-pump line and vavuum pump 9 above machine barrel 11, thus the steam produced in inherent for machine barrel 11 heating process can be taken away, producing aeration quality to avoid follow-up product; By arranging level sensor 3 in feeding cylinder 2, automation can be realized and feed in raw material, preventing feeding cylinder 2 flash, greatly reduce the working strength of workman; The screw rod 12 arranged enhances the plasticizing shear effect of extruder, improves product quality.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (4)
1. a plastics screw extruding machine, comprise feeding cylinder (2), PLC (5), vavuum pump (9), machine barrel (11), screw rod (12) and mould (18), it is characterized in that, described machine barrel (9) is provided with charging aperture (4) and discharging opening (17), described feeding cylinder (2) is arranged on the charging aperture (4) of machine barrel (11), described feeding cylinder (2) inwall upper end is provided with level sensor (3), the top of described feeding cylinder (2) arranges negative-pressure air fan (1), described negative-pressure air fan (1) is connected with PLC (5) respectively with level sensor (3), described screw rod (12) is arranged in machine barrel (11), described screw rod (12) is connected with motor (10), described screw rod (12) comprises positive rotation direction screw rod (13), central rotating shaft (14) and derotation are to screw rod (16), described central rotating shaft (14) is provided with multiplely takes turns fin (15), describedly take turns the cutting planes of fin (15) and the center line of central rotating shaft (14) is 45 °, the anglec of rotation of adjacent wheel fin (15) is 60 °, described discharging opening (17) connecting mold (18), described machine barrel (11) periphery is provided with electric heating cover (19), described electric heating cover (19) outer spacer is provided with multiple insulation shell (20), rock wool (21) is set in described insulation shell (20), temperature sensor (8) is provided with in described machine barrel (11), described vavuum pump (9) is communicated with machine barrel (11) by vacuum pipe, described temperature sensor (8) and vavuum pump (9) are connected respectively to PLC (5).
2. plastics screw extruding machine according to claim 1, is characterized in that, described positive rotation direction screw rod (13), central rotating shaft (14) and derotation are integral type to screw rod (16).
3. plastics screw extruding machine according to claim 1, is characterized in that, before and after each described insulation shell, both sides arrange air inlet and air outlet respectively, and each described air inlet is connected with blower fan, and blower fan is connected with PLC (5).
4. plastics screw extruding machine according to claim 1, is characterized in that, described PLC (5) is provided with display screen (6) and operated key (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510804478.4A CN105235187A (en) | 2015-11-20 | 2015-11-20 | Plastic screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510804478.4A CN105235187A (en) | 2015-11-20 | 2015-11-20 | Plastic screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105235187A true CN105235187A (en) | 2016-01-13 |
Family
ID=55033128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510804478.4A Pending CN105235187A (en) | 2015-11-20 | 2015-11-20 | Plastic screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105235187A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563787A (en) * | 2016-01-22 | 2016-05-11 | 广州晶品智能压塑科技股份有限公司 | Intelligent and full-automatic precise control mould pressing cap maker |
| CN106989016A (en) * | 2017-05-12 | 2017-07-28 | 成都市惠家胶粘制品有限公司 | The screw pump conveyed for gluing fluid pipeline |
| CN108748947A (en) * | 2018-05-30 | 2018-11-06 | 吕凯 | A kind of mixing extrusion molding all-in-one machine of modifying plastics technique |
| CN115087535A (en) * | 2020-02-12 | 2022-09-20 | 巴顿菲尔-辛辛那提德国有限公司 | Device for starting an extrusion process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204340161U (en) * | 2014-11-26 | 2015-05-20 | 李小梅 | A kind of plastic extruder with exhaust and filtration apparatus |
| CN204622552U (en) * | 2015-04-17 | 2015-09-09 | 贾广松 | A kind of high benefit screw extruder |
-
2015
- 2015-11-20 CN CN201510804478.4A patent/CN105235187A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204340161U (en) * | 2014-11-26 | 2015-05-20 | 李小梅 | A kind of plastic extruder with exhaust and filtration apparatus |
| CN204622552U (en) * | 2015-04-17 | 2015-09-09 | 贾广松 | A kind of high benefit screw extruder |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563787A (en) * | 2016-01-22 | 2016-05-11 | 广州晶品智能压塑科技股份有限公司 | Intelligent and full-automatic precise control mould pressing cap maker |
| CN105563787B (en) * | 2016-01-22 | 2018-03-20 | 广州晶品智能压塑科技股份有限公司 | Intelligent precise controls full-automatic mould pressing lid maker |
| CN106989016A (en) * | 2017-05-12 | 2017-07-28 | 成都市惠家胶粘制品有限公司 | The screw pump conveyed for gluing fluid pipeline |
| CN108748947A (en) * | 2018-05-30 | 2018-11-06 | 吕凯 | A kind of mixing extrusion molding all-in-one machine of modifying plastics technique |
| CN115087535A (en) * | 2020-02-12 | 2022-09-20 | 巴顿菲尔-辛辛那提德国有限公司 | Device for starting an extrusion process |
| CN115087535B (en) * | 2020-02-12 | 2024-04-26 | 巴顿菲尔-辛辛那提德国有限公司 | Apparatus for starting an extrusion process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |
|
| RJ01 | Rejection of invention patent application after publication |