CN102990902A - Extruding machine - Google Patents

Extruding machine Download PDF

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Publication number
CN102990902A
CN102990902A CN2012105969192A CN201210596919A CN102990902A CN 102990902 A CN102990902 A CN 102990902A CN 2012105969192 A CN2012105969192 A CN 2012105969192A CN 201210596919 A CN201210596919 A CN 201210596919A CN 102990902 A CN102990902 A CN 102990902A
Authority
CN
China
Prior art keywords
zone
spiral shell
screw rod
extruder
machine barrel
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.)
Granted
Application number
CN2012105969192A
Other languages
Chinese (zh)
Other versions
CN102990902B (en
Inventor
袁能军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Dong Bin rubber and plastic screw Co., Ltd.
Original Assignee
ZHEJIANG DONGBIN RUBBER MACHINERY SCREW CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJIANG DONGBIN RUBBER MACHINERY SCREW CO Ltd filed Critical ZHEJIANG DONGBIN RUBBER MACHINERY SCREW CO Ltd
Priority to CN201210596919.2A priority Critical patent/CN102990902B/en
Publication of CN102990902A publication Critical patent/CN102990902A/en
Application granted granted Critical
Publication of CN102990902B publication Critical patent/CN102990902B/en
Active legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/505Screws
    • B29C48/52Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
    • B29C48/525Conical screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/362Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/505Screws
    • B29C48/59Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
    • B29C48/605Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw the thread being discontinuous
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/505Screws
    • B29C48/64Screws with two or more threads
    • B29C48/65Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread

Abstract

An extruding machine comprises a machine cylinder (1) and a screw (2), wherein a charging port (11) is arranged at one end of the machine cylinder (1), a discharging port (12) is arranged at the other end of the machine cylinder (1), a material cavity (13) is axially arranged inside the machine cylinder (1), the screw (2) is rotatably placed inside the material cavity (13), the screw (2) can be divided into a charging section (A), a melting section (B), a plasticizing section (C) and an extruding section (D), the screw (2) of the charging section (A) is cylindrical, and a screw edge (21) is arranged on the cylindrical surface. The extruding machine is characterized in that the screw (2) of the melting section (B) is in a conical shape that the diameter of the charging section (A) is larger than that of the melting section (B), and a breakage screw edge (22) is arranged on the conical surface. The extruding machine has the advantages of being smooth to charge, free from material blockage and material returning and capable of integrating extruding, dehydration, expanding and drying functions.

Description

A kind of extruder
Technical field
The present invention relates to a kind of extruder, especially refer to a kind of for the synthesis of rubber or plastic extrusion, dehydration, expansion, dry extruder.
Background technology
Extruder is a kind of basic equipment of rubber industry, is one of key equipment that affects product quality, plays very important effect in the production process of tire and rubber.The development experience of Rubber Extruder the stages such as plunger-type extruder, screw type hot-feed extruder, common cold feed extruder, major-minor screw thread cold feed extruder, cold feeding vented extruder, pin cold-feed extruding machine, complex extruder.
Existing a kind of application number is that the Chinese invention patent application that the CN201110001165.7 name is called " Rubber Extruder " discloses a kind of Rubber Extruder, comprise machine barrel and be arranged on the interior drive screw of machine barrel, be provided with the machine barrel fixing with machine barrel between machine barrel and the drive screw, the machine barrel outer peripheral face matches with machine tube inner wall, drive screw turns is arranged in the endoporus of machine barrel, has helical form between machine barrel periphery and the machine tube inner wall, the current cavity that Cooling Water flows, correspondingly, offer inlet opening and the apopore that is connected respectively with the front-end and back-end of current cavity at machine barrel.The present invention is with the Design of cooling Water jacket spirality, so that cooling water is in and constantly circulates, and cooling water cavity is near apart from rubber melt, solved existing Rubber Extruder in use rate of heat exchange lower, to the less-than-ideal problem of rubber melt cooling effect, be conducive to improve and stabilized product quality.But, its function singleness, the semi-finished product that this extruder produces also need just can reach production requirement through processing, and are prone to the phenomenon of putty, returning charge, so its structure is further improved.
Summary of the invention
Technical problem to be solved by this invention be provide for above-mentioned prior art problem a kind of design ingenious, rational in infrastructure, charging smoothly, not putty, instead do not expect and integrate extruding, dehydration, expansion, dry a kind of extruder.
The present invention solves the problems of the technologies described above the technical scheme that adopts: this extruder, include machine barrel and screw rod, one end of described machine barrel is provided with charging aperture, the other end of described machine barrel be provided with discharging opening, axially be provided with material cavity in the described machine barrel, described screw rod can place in the material cavity rotationally, and described screw rod is divided into feed zone, melt zone, fluxing zone and extruding zone; The screw rod of described feed zone is cylindrical, and is provided with the spiral shell rib at cylindrical surface; It is characterized in that: the screw rod of described melt zone is the feed zone diameter greatly and the little taper shape of melt zone diameter, and described trochoidal surface is provided with fracture spiral shell rib.
As improvement, described fracture spiral shell rib is for equidistantly arranged together.
As improvement, diameter is set less than the fracture spiral shell rib diameter of melt zone and the equidistant plasticizing fracture spiral shell rib of arranging on the screw rod of described fluxing zone.
As improvement, be provided with pitch on the screw rod of described extruding zone less than the continuous spiral shell rib of fluxing zone pitch, described continuous spiral shell rib is for equidistantly arranged together.
As improvement, described machine barrel is provided be used to the cooling chamber that holds cooling water in the bottom of fluxing zone and extruding zone.
As improvement, the overall structure that described machine barrel is formed by connecting by multistage cylindrical shell dismountable type; Described cylindrical shell is inter-connected via a bolt joint together.
As improvement, described discharging opening is provided with the pellet device of extruded stock pelletizing; Structure and machine barrel that described pellet device energy integral-rotation is 90 ° are set together.
Compared with prior art, the present invention adopts the screw rod of described melt zone to be the feed zone diameter greatly and the little taper shape of melt zone diameter, and described trochoidal surface is provided with fracture spiral shell rib, and described fracture spiral shell rib is for equidistantly arranged together; Diameter is set less than the fracture spiral shell rib diameter of melt zone and the equidistant plasticizing fracture spiral shell rib of arranging on the screw rod of described fluxing zone; Be provided with pitch on the described extruding zone screw rod less than the continuous spiral shell rib of fluxing zone pitch, described continuous spiral shell rib is for equidistantly arranged together.The design's advantage is: the screw rod of described melt zone is the feed zone diameter greatly and the little taper shape of melt zone diameter, and described trochoidal surface is provided with fracture spiral shell rib, can effectively guarantee the smoothness of charging, avoids the generation of putty and returning charge phenomenon; This machine integrates extruding, dehydration, expansion, dry in addition;
Feed zone: screw channel is deepened, and tangential admission, inner periphery are provided with the spiral shell rib, and charging is smooth and easy, putty not, not returning charge;
Melt zone: adopt without the cage bar, after get rid of the water design, do not leak glue, need not cleaning;
Fluxing zone: adopt large compression ratio screw element, material is implemented powerful compression;
Extruding zone: screw rod is sheared strongly, and pressure is high in addition, and heating is fast, and sizing material reaches the required temperature of expanded flash distillation that needs at the utmost point in the short time, because sizing material is shorter in the high temperature section time of staying, it is stable to be conducive to the sizing material physical and chemical performance;
Pellet device can be spent by integral-rotation 90, is convenient to cleaning and maintenance; The driving screw rotating speed is adjustable, is applicable to the different operating operating mode of different glue kinds and same glue kind.
Description of drawings
Fig. 1 is the plane structure chart of the embodiment of the invention;
Fig. 2 is I section enlarged drawing among Fig. 1;
Fig. 3 is II section enlarged drawing among Fig. 1;
Fig. 4 is III section enlarged drawing among Fig. 1.
The specific embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figures 1 to 4, the extruder of present embodiment includes machine barrel 1 and screw rod 2, the overall structure that described machine barrel 1 is formed by connecting by multistage cylindrical shell 14 dismountable types, and described cylindrical shell 14 interconnects by bolt 3; One end of described machine barrel 1 is provided with charging aperture 11, the other end of described machine barrel 1 be provided with discharging opening 12, described discharging opening 12 is provided with the pellet device 4 of extruded stock pelletizing, described pellet device 4 can integral-rotations 90 ° structure and machine barrel 1 be set together; The described machine barrel 1 interior material cavity 13 that axially is provided with, described screw rod 2 can place in the material cavity 13 rotationally, and described screw rod 2 is divided into feed zone A, melt zone B, fluxing zone C and extruding zone D; The screw rod 2 of described feed zone A is cylindrical, and is provided with spiral shell rib 21 at cylindrical surface; It is characterized in that: the screw rod 2 of described melt zone B is feed zone A diameter greatly and the little taper shape of melt zone B diameter, and described trochoidal surface is provided with fracture spiral shell rib 22, and described fracture spiral shell rib 22 is for equidistantly arranged together; Diameter is set less than fracture spiral shell rib 22 diameters of melt zone B and the equidistant plasticizing fracture spiral shell rib 23 of arranging on the screw rod 2 of described fluxing zone C; Be provided with pitch on the screw rod 2 of described extruding zone D less than the continuous spiral shell rib 24 of fluxing zone pitch, described continuous spiral shell rib 24 is for equidistantly arranged together; Described machine barrel 1 is provided be used to the cooling chamber 15 that holds cooling water in the bottom of fluxing zone C and extruding zone D.
Operation principle: this extruder is connected with drive motors 6 by reduction box 5, and the material of required processing is from charging aperture 11 material cavity 13 of entering, and constantly advances under the promotion of the spiral shell rib 21 of feed zone A; Enter melt zone B, because the screw rod 2 of melt zone B is the large and little taper shape of melt zone B diameter of feed zone A diameter, material is when melt zone B advances, and melting process is finished in the material thawing of being heated; Material after the melting enters fluxing zone C, and material increases gradually at fluxing zone C pressure, and volume is constantly compressed, and finishes plasticizing process; The material of plasticizing enters extruding zone D, and material is sheared strongly by continuous spiral shell rib 24 in extruding zone D, and the material fast heating reaches the required temperature of expanded flash distillation within the extremely short time; Overheated in order to prevent machine barrel 1, can in cooling chamber 15, be filled with water quench; Enter pellet device 4 from extruding zone D material out and carry out pelletizing, finished product falls from discharging opening 12; Described drive motors 6 rotating speeds are adjustable, make and originally extrude the different operating operating mode that function is applicable to different glue kinds and same glue kind.

Claims (9)

1. extruder, include machine barrel (1) and screw rod (2), one end of described machine barrel (1) is provided with charging aperture (11), the other end of described machine barrel (1) be provided with discharging opening (12), axially be provided with material cavity (13) in the described machine barrel (1), described screw rod (2) can place in the material cavity (13) rotationally, and described screw rod (2) is divided into feed zone (A), melt zone (B), fluxing zone (C) and extruding zone (D); The screw rod (2) of described feed zone (A) is cylindrical, and is provided with spiral shell rib (21) at cylindrical surface; It is characterized in that: the screw rod (2) of described melt zone (B) is feed zone (A) diameter greatly and the little taper shape of melt zone (B) diameter, and described trochoidal surface is provided with fracture spiral shell rib (22).
2. extruder according to claim 1, it is characterized in that: described fracture spiral shell rib (22) is for equidistantly arranged together.
3. extruder according to claim 2 is characterized in that: diameter is set less than fracture spiral shell rib (22) diameter of melt zone (B) and the equidistant plasticizing fracture spiral shell rib (23) of arranging on the screw rod (2) of described fluxing zone (C).
4. extruder according to claim 3, it is characterized in that: be provided with pitch on the screw rod (2) of described extruding zone (D) less than the continuous spiral shell rib (24) of fluxing zone pitch, described continuous spiral shell rib (24) is for equidistantly arranged together.
5. arbitrary described extruder in 4 according to claim 1, it is characterized in that: described machine barrel (1) is provided be used to the cooling chamber that holds cooling water (15) in the bottom of fluxing zone (C) and extruding zone (D).
6. arbitrary described extruder in 4 according to claim 1 is characterized in that: the overall structure that described machine barrel (1) is formed by connecting by multistage cylindrical shell (14) dismountable type.
7. extruder according to claim 6 is characterized in that: the structure that described dismountable type connects is: described cylindrical shell (14) interconnects by bolt (3).
8. arbitrary described extruder in 4 according to claim 1, it is characterized in that: described discharging opening (12) is provided with the pellet device (4) of extruded stock pelletizing.
9. extruder according to claim 8 is characterized in that: described pellet device (4) can integral-rotation 90 ° structure and machine barrel (1) be set together.
CN201210596919.2A 2012-12-31 2012-12-31 Extruding machine Active CN102990902B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210596919.2A CN102990902B (en) 2012-12-31 2012-12-31 Extruding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210596919.2A CN102990902B (en) 2012-12-31 2012-12-31 Extruding machine

Publications (2)

Publication Number Publication Date
CN102990902A true CN102990902A (en) 2013-03-27
CN102990902B CN102990902B (en) 2015-07-15

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ID=47920264

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103465460A (en) * 2013-09-05 2013-12-25 昆山地博光电材料有限公司 Plastic extrusion screw rod of PC (poly carbonate) thin film
CN104934153A (en) * 2015-06-01 2015-09-23 安庆钰龙橡塑机械制造有限公司 Screw conveyor for silicone rubber extrusion production
CN104943125A (en) * 2014-03-27 2015-09-30 国恩工业股份有限公司 Extruder capable of being fed with wet materials
CN108748922A (en) * 2018-06-25 2018-11-06 滁州宇美塑业有限公司 A kind of the screw in injection molding machine barrel and its application method of quick detachable cleaning
CN113492512A (en) * 2021-08-06 2021-10-12 抚州市天和硅业有限责任公司 Organic silicon extruder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426038A2 (en) * 1989-10-31 1991-05-08 Siemens Aktiengesellschaft Injection nozzle for injection moulding devices
CN201231563Y (en) * 2008-05-21 2009-05-06 戴培鹏 Novel plastic extrusion machine
CN202491411U (en) * 2012-02-23 2012-10-17 浙江栋斌橡机螺杆有限公司 Screw rod
CN202491414U (en) * 2012-02-23 2012-10-17 浙江栋斌橡机螺杆有限公司 Cone double screw
CN203046215U (en) * 2012-12-31 2013-07-10 浙江栋斌橡机螺杆有限公司 Extruding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426038A2 (en) * 1989-10-31 1991-05-08 Siemens Aktiengesellschaft Injection nozzle for injection moulding devices
CN201231563Y (en) * 2008-05-21 2009-05-06 戴培鹏 Novel plastic extrusion machine
CN202491411U (en) * 2012-02-23 2012-10-17 浙江栋斌橡机螺杆有限公司 Screw rod
CN202491414U (en) * 2012-02-23 2012-10-17 浙江栋斌橡机螺杆有限公司 Cone double screw
CN203046215U (en) * 2012-12-31 2013-07-10 浙江栋斌橡机螺杆有限公司 Extruding machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103465460A (en) * 2013-09-05 2013-12-25 昆山地博光电材料有限公司 Plastic extrusion screw rod of PC (poly carbonate) thin film
CN104943125A (en) * 2014-03-27 2015-09-30 国恩工业股份有限公司 Extruder capable of being fed with wet materials
CN104934153A (en) * 2015-06-01 2015-09-23 安庆钰龙橡塑机械制造有限公司 Screw conveyor for silicone rubber extrusion production
CN108748922A (en) * 2018-06-25 2018-11-06 滁州宇美塑业有限公司 A kind of the screw in injection molding machine barrel and its application method of quick detachable cleaning
CN113492512A (en) * 2021-08-06 2021-10-12 抚州市天和硅业有限责任公司 Organic silicon extruder

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Publication number Publication date
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C06 Publication
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Address after: 316031 Zhejiang city of Zhoushan province Dinghai Jintang Zhen Shan Tan xihou Industrial Zone Liu Road No. 2

Patentee after: Zhejiang Dong Bin rubber and plastic screw Co., Ltd.

Address before: Dinghai Jintang town for road 316031 in Zhejiang province Zhoushan city Zhejiang No. 28 Dong Bin rubber machine screw Co. Ltd.

Patentee before: Zhejiang Dongbin Rubber Machinery Screw Co., Ltd.