CN103921425B - Plastic extruder - Google Patents
Plastic extruder Download PDFInfo
- Publication number
- CN103921425B CN103921425B CN201410161058.4A CN201410161058A CN103921425B CN 103921425 B CN103921425 B CN 103921425B CN 201410161058 A CN201410161058 A CN 201410161058A CN 103921425 B CN103921425 B CN 103921425B
- Authority
- CN
- China
- Prior art keywords
- screw rod
- feed zone
- discharging section
- periphery
- helical blade
- 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
-
- 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
- B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
-
- 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
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
-
- 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
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
-
- 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
- B29C48/51—Screws with internal flow passages, e.g. for molten material
-
- 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
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
-
- 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
- B29C48/82—Cooling
-
- 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
-
- 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
- B29C48/84—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 by heating or cooling the feeding screws
- B29C48/845—Heating
Abstract
The invention provides plastic extruder, it can solve conventional plastic extruder raw material and stir the problem insufficient, motor power consumption is large, ensures extrusion molding quality, reduces production cost.Machine barrel is provided with feed arrangement, external heating device segmentation is installed on the periphery of machine barrel, the periphery of screw rod is provided with the helical blade extended vertically, it is characterized in that: screw rod comprises the feed zone screw rod and discharging section screw rod that axially connect, the output shaft of feed zone screw rod and drive motors is coupling, discharging section screw rod one end is connected with feed zone screw rod, the other end is connected with the extrusion dies of machine barrel discharging opening section, discharging section screw rod is the tubular of hollow, the periphery of feed zone screw rod is provided with the helical blade extended vertically, the periphery of the tubular discharging section screw rod in hollow, inner circumferential is provided with the helical blade helical blade in the same way with feed zone screw rod periphery, the helical blade of feed zone screw rod periphery and the helical blade of discharging section screw rod periphery link into an integrated entity.
Description
Technical field
The present invention relates to plastic extruder and manufacture field, be specially plastic extruder.
Background technology
Traditional plastic extruder generally all adopts single-screw stirring conveyor structure, its single screw rod is installed in machine barrel, motor feed zone bolt rotary, the rotating vane that screw rod is rotating its periphery stirs and horizontal feed the raw material being entered machine barrel by charging aperture, the heater being simultaneously installed on machine barrel periphery constantly heats the raw material in machine barrel, raw material after thermoplastic is by the extrusion dies extrusion molding of machine barrel discharging opening, its shortcoming is that single screw rod is insufficient for the stirring of raw material, and the heater of machine barrel periphery is to heating raw materials, and softening to there is heating raw materials uneven, the problem of heating effect difference, thus affect speed and the quality of extrusion molding.In order to solve the defect of above-mentioned conventional plastic extruder, there is the plastic extruder adopting double-spiral stirring conveyer structure in the market, it in machine barrel, is provided with two horizontal parallel arrange and the screw rod of synchronous axial system, and the helical blade hand of spiral of two screw rod peripheries, angle is all identical, although adopt double-helical screw mechanism that raw material can be made to be stirred fully, but drive two screw rod synchronous axial system to need two screw rods to be connected with powerful motor shaft by sychronisation, not only syndeton is complicated for it, and the energy consumption of motor is larger, production cost is high.Also the plastic extruder being provided with inner and outer ring device for simultaneous heating has been there is in current industry, the Chinese invention patent being CN201544447U as notification number discloses a kind of inside-outside annular heating type plastic extruder, it is except except machine barrel outer setting heater, also be provided with in screw rod and be provided with inner heating device, screw rod is set to hollow body by it, conductive fluid is filled with in screw rod, and in screw rod, be provided with the heat carrier of external conductor wire, heat carrier after energising in screw rod heats and makes the conductive fluid temperature be filled in screw rod raise thus whole extruder temperature is raised, reach and interior heating is carried out to the plastisol raw material in screw sleeve, although it achieves, the inner and outer ring of plastisol in sleeve is heated, do not ensure the abundant heating to plastisol raw material.And it exists the problem that screw rod inner heating device not easily seals, the inner heating device of screw rod along with screw rod synchronous axial system, thus can cause the problem that in it, heating is uneven, unstable in process of production simultaneously.
Summary of the invention
For the problems referred to above, the invention provides plastic extruder, it can solve conventional plastic extruder raw material and stir the problem insufficient, motor power consumption is large, and raw material can be made again to obtain abundant thermoplastic, ensures extrusion molding quality, reduces production cost.
Its technical scheme is such, it comprises frame, machine barrel, helix transporting device, external heating device, described machine barrel is installed on described frame, described machine barrel is provided with feed arrangement, described external heating device segmentation is installed on the periphery of described machine barrel, described helix transporting device comprises screw rod, drive motors, described screw rod is through described machine tube inner wall, and its one end is connected with the extrusion dies of machine barrel discharging opening section, the output shaft of the other end and described drive motors is coupling, the periphery of described screw rod is provided with the helical blade extended vertically, it is characterized in that: described screw rod comprises the feed zone screw rod and discharging section screw rod that axially connect, the output shaft of described feed zone screw rod and described drive motors is coupling, described discharging section screw rod one end is connected with described feed zone screw rod, the other end is connected with the extrusion dies of described machine barrel discharging opening section, described discharging section screw rod is the tubular of hollow, the periphery of described feed zone screw rod is provided with the helical blade extended vertically, the periphery of the described tubular discharging section screw rod in hollow, inner circumferential is provided with the helical blade helical blade in the same way with described feed zone screw rod periphery, the helical blade of described feed zone screw rod periphery links into an integrated entity with the helical blade of discharging section screw rod periphery thus realizes described feed zone screw rod and is connected with the axis of discharging section screw rod.
It is further characterized in that:
It is provided with inner heating device, and described inner heating device is installed in described discharging section screw rod, and the helical blade of described discharging section screw rod inner circumferential is positioned at the outer circumferential side of described inner heating device;
Described inner heating device comprises heating inner core, electric heating tube, described heating inner core to stretch in described discharging section screw rod and the helical blade of described discharging section screw rod inner circumferential is surrounded on the outer circumferential side of described heating inner core from the discharge port end of described machine barrel, be provided with described electric heating tube in described heating inner core, described electric heating tube one end electricly connects with heating electrode through after described extrusion dies;
Described electric heating tube is U-shaped electric heating tube;
Described U-shaped electric heating tube is provided with three, described three U-shaped heating tube horizontal parallel arrange and the U-shaped opening of described three U-shaped electric heating tubes all towards described extrusion dies, wherein U-shaped of two U-shaped electric heating tubes is vertically be arranged in parallel, and described in another root, the U-shaped face of U-shaped electric heating tube is horizontally disposed;
Described U-shaped face is horizontally disposed U-shaped electric heating tube between the U-shaped opening of described two U-shaped faces in the U-shaped electric heating tube be vertically arranged in parallel;
The side end face that described heating inner core is positioned at described feed zone screw rod is provided with locating shaft portion, the side end face that described feed zone screw rod connects with discharging section screw rod has positioning chamber, and the locating shaft portion grafting of described heating inner core enters in the positioning chamber of described feed zone screw rod.
The beneficial effect of plastic extruder of the present invention is:
(1) its screw rod is formed by connecting by feed zone screw rod and the discharging section screw axial in hollow tube-shape, periphery and the inner circumferential of discharging section screw rod are provided with helical blade, and the spiral of discharging section screw rod periphery, the direction of the helical blade of inner circumferential is all identical with the helical blade of feed zone screw rod periphery, the helical blade of feed zone screw rod periphery links into an integrated entity with the helical blade of discharging section screw rod periphery thus realizes feed zone screw rod and is connected with the axis of discharging section screw rod simultaneously, the raw material being dropped into machine barrel by feed arrangement stirs limit below for the first time carry to discharging section screw rod direction rotarily driving of feed zone screw rod, within being divided into after feedstock transportation to the junction of feed zone screw rod and discharging section screw rod, outer two parts conveying, wherein a part is conveyed between discharging section screw rod and machine tube inner wall, another part is conveyed in discharging section screw rod, due to the periphery of discharging section screw rod, inner circumferential is provided with helical blade, therefore its by raw material to extrusion dies direction conveying while in discharging section screw rod, outer raw material carries out sufficient secondary agitation, thus substantially increase the uniformity of raw material stirring,
(2) because discharging section screw rod and feed zone screw rod to be linked into an integrated entity by the helical blade of periphery and discharging section screw rod is the tubular of hollow, therefore its do not increase drive motors power can drive whole screw rod rotate and transferring raw material, thus reach the object reducing energy consumption, reduce production cost;
(3) it is except having external heating device at the periphery subsection setup of machine barrel, also in discharging section screw rod, be provided with inner heating device, its external heating device heats the raw material between machine barrel and discharging section screw rod, simultaneously inner heating device the raw material in discharging section screw rod is heated, thus ensure that heating raw materials is even, make raw material obtain heating fully with softening, ensure that extrusion molding speed and extrusion molding quality;
(4) inner heating device is provided with three U-shaped electric heating tubes, and U-shaped face is horizontally disposed U-shaped electric heating tube between the U-shaped opening of two U-shaped faces in the U-shaped electric heating tube be vertically arranged in parallel, can ensure that it is quick, consistent heat generation, ensure further to carry out homogeneous heating to the raw material in discharging section screw rod;
(5) the locating shaft portion grafting that heating inner core one end of inner heating device is arranged enters in the positioning chamber of feed zone screw rod, ensure that the axial stability of inner heating device and feed zone screw rod, guarantees the reliable heating of inner heating device; In addition, feed zone screw rod is driven to rotate around the locating shaft portion of heating inner core when drive motors runs, now the heating inner core of inner heating device does not rotate, only play certralizing ability, thus ensure that feed zone screw rod can reliably rotate under drive motors drives, guarantee reliable stirring and the conveying of raw material.
Accompanying drawing explanation
Fig. 1 is plastic force-out machine structure schematic diagram of the present invention;
Fig. 2 is the structure for amplifying schematic diagram of the heating inner core of inner heating device in Fig. 1;
Fig. 3 is the plan structure schematic diagram of Fig. 2;
The structure for amplifying schematic diagram of the feed zone screw rod in Fig. 4 the present invention;
Fig. 5 is the assembling schematic diagram of feed zone screw rod and discharging section screw rod in the present invention.
Detailed description of the invention
See Fig. 1, it comprises frame 1, machine barrel 2, helix transporting device, external heating device 3, machine barrel 2 is installed on frame 1, machine barrel 2 is provided with feed arrangement 4, external heating device 3 segmentation is installed on the periphery of machine barrel 2, helix transporting device comprises screw rod, drive motors 5, screw rod is through 2 machine tube inner walls, and its one end is connected with the extrusion dies 6 of machine barrel discharging opening section, the other end is coupling by the output shaft of shaft coupling 17 with drive motors 5, the periphery of screw rod is provided with the helical blade 7 extended vertically, screw rod comprises the feed zone screw rod 8 and discharging section screw rod 9 that axially connect, feed zone screw rod 8 is coupling with the output shaft of drive motors 5, discharging section screw rod 9 one end is connected with feed zone screw rod 8, the other end connects with the extrusion dies 6 of machine barrel discharging opening section, the tubular of discharging section screw rod 9 in hollow, the periphery of feed zone screw rod 8 is provided with the helical blade 7 extended vertically, the periphery of the tubular discharging section screw rod 9 in hollow, inner circumferential is respectively arranged with and the helical blade 7 of feed zone screw rod periphery helical blade 10 in the same way, 11, the helical blade 7 of feed zone screw rod 8 periphery links into an integrated entity with the helical blade 10 of discharging section screw rod periphery thus realizes feed zone screw rod 8 and is connected with the axis of discharging section screw rod 9, see Fig. 4.
The present invention is also provided with inner heating device, and inner heating device is installed in discharging section screw rod 9, and the helical blade 11 of discharging section screw rod 9 inner circumferential is positioned at the outer circumferential side of inner heating device;
Inner heating device comprises heating inner core 12, electric heating tube 13, heating inner core 12 to stretch in discharging section screw rod 9 and the helical blade 11 of discharging section screw rod 9 inner circumferential is surrounded on the outer circumferential side of heating inner core 12 from the discharge port end of machine barrel 2, in heating inner core 12, electric heating tube 13 is installed, electric heating tube 13 one end through after extrusion dies 6 and heating electrode 14 electricly connect;
Electric heating tube 13 is U-shaped electric heating tube;
U-shaped electric heating tube is provided with three, be respectively 131,132 and 133, see Fig. 2 and Fig. 3, three U-shaped heating tube horizontal parallel arrange and the U-shaped opening of three U-shaped electric heating tubes all towards described extrusion dies, wherein U-shaped of two U-shaped electric heating tubes 132,133 is vertically be arranged in parallel, the U-shaped face of another single u-shaped electric heating tube 131 is horizontally disposed, see Fig. 5, U-shaped face is horizontally disposed U-shaped electric heating tube 131 between the U-shaped opening of two U-shaped faces in the U-shaped electric heating tube 132,133 be vertically arranged in parallel;
The side end face that heating inner core 12 is positioned at feed zone screw rod 8 is provided with locating shaft portion 15(and sees Fig. 2), the side end face that feed zone spiral shell 8 bar connects with discharging section screw rod 9 has positioning chamber 16(and sees Fig. 3), locating shaft portion 15 grafting of heating inner core 12 enters in the positioning chamber 16 of feed zone screw rod 8.Inner heating device and external heating device are provided with attemperating unit, for the monitoring of heating-up temperature and regulation and control.
Claims (6)
1. plastic extruder, it comprises frame, machine barrel, helix transporting device, external heating device, described machine barrel is installed on described frame, described machine barrel is provided with feed arrangement, described external heating device segmentation is installed on the periphery of described machine barrel, described helix transporting device comprises screw rod, drive motors, described screw rod is through described machine tube inner wall, and its one end is connected with the extrusion dies of machine barrel discharging opening section, the output shaft of the other end and described drive motors is coupling, the periphery of described screw rod is provided with the helical blade extended vertically, it is characterized in that: described screw rod comprises the feed zone screw rod and discharging section screw rod that axially connect, the output shaft of described feed zone screw rod and described drive motors is coupling, described discharging section screw rod one end is connected with described feed zone screw rod, the other end is connected with the extrusion dies of described machine barrel discharging opening section, described discharging section screw rod is the tubular of hollow, the periphery of described feed zone screw rod is provided with the helical blade extended vertically, the periphery of the described tubular discharging section screw rod in hollow, inner circumferential is provided with the helical blade helical blade in the same way with described feed zone screw rod periphery, the inside of the described discharging section screw rod of the tubular in hollow is stretched in the end of described feed zone screw rod, the helical blade of described feed zone screw rod periphery links into an integrated entity with the helical blade of discharging section screw rod periphery thus realizes described feed zone screw rod and is connected with the axis of discharging section screw rod, it is also provided with inner heating device, and described inner heating device is installed in described discharging section screw rod, and the helical blade of described discharging section screw rod inner circumferential is positioned at the outer circumferential side of described inner heating device.
2. plastic extruder according to claim 1, it is characterized in that: described inner heating device comprises heating inner core, electric heating tube, described heating inner core to stretch in described discharging section screw rod and the helical blade of described discharging section screw rod inner circumferential is surrounded on the outer circumferential side of described heating inner core from the discharge port end of described machine barrel, be provided with described electric heating tube in described heating inner core, described electric heating tube one end electricly connects with heating electrode through after described extrusion dies.
3. plastic extruder according to claim 2, is characterized in that: described electric heating tube is U-shaped electric heating tube.
4. plastic extruder according to claim 3, it is characterized in that: described U-shaped electric heating tube is provided with three, described three U-shaped heating tube horizontal parallel arrange and the U-shaped opening of described three U-shaped electric heating tubes all towards described extrusion dies, wherein the U-shaped face of two U-shaped electric heating tubes is in being vertically arranged in parallel, and described in another root, the U-shaped face of U-shaped electric heating tube is horizontally disposed.
5. plastic extruder according to claim 4, is characterized in that: described U-shaped face is horizontally disposed U-shaped electric heating tube between the U-shaped opening of described two U-shaped faces in the U-shaped electric heating tube be vertically arranged in parallel.
6. according to described plastic extruder arbitrary in claim 2,3,4,5, it is characterized in that: the side end face that described heating inner core is positioned at described feed zone screw rod is provided with locating shaft portion, the side end face that described feed zone screw rod connects with discharging section screw rod has positioning chamber, and the locating shaft portion grafting of described heating inner core enters in the positioning chamber of described feed zone screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161058.4A CN103921425B (en) | 2014-04-22 | 2014-04-22 | Plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161058.4A CN103921425B (en) | 2014-04-22 | 2014-04-22 | Plastic extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103921425A CN103921425A (en) | 2014-07-16 |
| CN103921425B true CN103921425B (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410161058.4A Expired - Fee Related CN103921425B (en) | 2014-04-22 | 2014-04-22 | Plastic extruder |
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| Country | Link |
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| CN (1) | CN103921425B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191587B (en) * | 2014-10-09 | 2017-01-25 | 苏州博云塑业有限公司 | Double-screw extruder |
| CN105235183A (en) * | 2015-11-10 | 2016-01-13 | 浙江金星螺杆制造有限公司 | Plastic extruder |
| CN108162238B (en) * | 2017-12-25 | 2020-01-17 | 重庆黎帆装饰工程有限公司 | Wood-plastic guardrail machining device |
| CN109366930A (en) * | 2018-11-21 | 2019-02-22 | 张家港市港塑机械有限公司 | Efficient plastic extruder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786326A (en) * | 2010-03-22 | 2010-07-28 | 北京化工大学 | Integrated extrusion molding and injection molding machine |
| CN201544447U (en) * | 2009-11-24 | 2010-08-11 | 浙江康润机械科技有限公司 | Inside-outside annular heating type plastic extruder |
| CN201808161U (en) * | 2010-01-19 | 2011-04-27 | 林志刚 | Internal heating plastic machine and internal heating screw rod thereof |
| CN203779835U (en) * | 2014-04-22 | 2014-08-20 | 刘道根 | Plastic extruder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009132230A2 (en) * | 2008-04-23 | 2009-10-29 | Koalesce, Inc. | Injection molding method and apparatus |
| JP2010105333A (en) * | 2008-10-31 | 2010-05-13 | I K G Kk | Molding machine and screw for molding machine |
| KR100915937B1 (en) * | 2009-04-22 | 2009-09-07 | 주식회사 우성기공 | Extruder screw with spiral heat medium path |
-
2014
- 2014-04-22 CN CN201410161058.4A patent/CN103921425B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201544447U (en) * | 2009-11-24 | 2010-08-11 | 浙江康润机械科技有限公司 | Inside-outside annular heating type plastic extruder |
| CN201808161U (en) * | 2010-01-19 | 2011-04-27 | 林志刚 | Internal heating plastic machine and internal heating screw rod thereof |
| CN101786326A (en) * | 2010-03-22 | 2010-07-28 | 北京化工大学 | Integrated extrusion molding and injection molding machine |
| CN203779835U (en) * | 2014-04-22 | 2014-08-20 | 刘道根 | Plastic extruder |
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| Publication number | Publication date |
|---|---|
| CN103921425A (en) | 2014-07-16 |
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