CN203046215U - Extruding machine - Google Patents
Extruding machine Download PDFInfo
- Publication number
- CN203046215U CN203046215U CN2012207554368U CN201220755436U CN203046215U CN 203046215 U CN203046215 U CN 203046215U CN 2012207554368 U CN2012207554368 U CN 2012207554368U CN 201220755436 U CN201220755436 U CN 201220755436U CN 203046215 U CN203046215 U CN 203046215U
- Authority
- CN
- China
- Prior art keywords
- zone
- screw rod
- machine barrel
- extruder
- spiral shell
- 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.)
- Withdrawn - After Issue
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Classifications
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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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/54—Screws with additional forward-feeding elements
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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
- B29C48/36—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
- B29C48/525—Conical 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
- B29C48/505—Screws
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
Abstract
The utility model discloses an extruding machine comprising a machine barrel (1) and a screw rod (2), wherein one end of the machine barrel (1) is provided with a feeding hole (11), and the other end of the machine barrel (1) is provided with a discharging hole (12); a material chamber (13) is axially arranged in the machine barrel (1); the screw rod (2) is rotatably arranged in the material chamber (13) and divided into a feeding section (A), a melting section (B), a plastifying section (C) and an extruding section (D); and the screw rod (2) at the feeding section (A) is cylindrical, and the cylindrical surface is provided with a screw flight (21). The extruding machine is characterized in that the screw rod (2) at the melting section (B) is shaped like a cone which has a large diameter at the feeding section (A) and a small diameter at the melting section (B), and the conical surface is provided with a broken screw flight (22). Due to the adoption of the design, the extruding machine has the advantages of smoothness in feeding, no material blockage or return and integration of extrusion, dehydration, expansion and dryness.
Description
Technical field
The utility model relates to a kind of extruder, especially refer to a kind of for the synthesis of the extruding of rubber or plastics, dehydration, expand, dry extruder.
Background technology
Extruder is a kind of basic equipment of rubber industry, is one of key equipment that influences product quality, plays important effect in the production process of tire and rubber.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 extruder, complex extruder have been experienced in the development of Rubber Extruder.
Existing a kind of application number discloses a kind of Rubber Extruder for the Chinese invention patent application that the CN201110001165.7 name is called " 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, current cavity for flow of cooling water, 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 designed to spirality with cooling water cavity, in making cooling water be in constantly to circulate, 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 handling, 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 in the utility model be provide at 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 utility model 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 being arranged in 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, the screw rod of described extruding zone is provided with pitch less than the continuous spiral shell rib of fluxing zone pitch, and described continuous spiral shell rib is for equidistantly being arranged in 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 the machine barrel of the whole half-twist of described pellet device energy are set together.
Compared with prior art, the utility model 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 being arranged in 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; Described extruding zone screw rod is provided with pitch less than the continuous spiral shell rib of fluxing zone pitch, and described continuous spiral shell rib is for equidistantly being arranged in 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 no cage bar, after get rid of water design, do not leak glue, need not cleaning;
Fluxing zone: adopt big compression ratio screw element, material is implemented powerful compression;
Extruding zone: screw rod is sheared strongly, and the pressure height generates heat soon in addition, 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 integral body revolves and turn 90 degrees, and 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 utility model embodiment;
Fig. 2 is I portion enlarged drawing among Fig. 1;
Fig. 3 is II portion enlarged drawing among Fig. 1;
Fig. 4 is III portion enlarged drawing among Fig. 1.
The specific embodiment
Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.
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, structure and machine barrel 1 that described pellet device 4 can whole half-twist are set together; 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, and described fracture spiral shell rib 22 is for equidistantly being arranged in together; Diameter is set less than fracture spiral shell rib 22 diameters of melt zone B and the equidistant plasticizing fracture spiral shell rib of arranging 23 on the screw rod 2 of described fluxing zone C; The screw rod 2 of described extruding zone D is provided with pitch less than the continuous spiral shell rib 24 of fluxing zone pitch, and described continuous spiral shell rib 24 is for equidistantly being arranged in 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 big 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 fusion 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 material generates heat fast, reaches the required temperature of expanded flash distillation in the extremely short time; Overheated in order to prevent machine barrel 1, can in cooling chamber 15, charge into water quench; The material that comes out from extruding zone D enters pellet device 4 and carries out pelletizing, and 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 being arranged in 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 of arranging (23) on the screw rod (2) of described fluxing zone (C).
4. extruder according to claim 3, it is characterized in that: the screw rod (2) of described extruding zone (D) is provided with pitch less than the continuous spiral shell rib (24) of fluxing zone pitch, and described continuous spiral shell rib (24) is for equidistantly being arranged in together.
5. according to arbitrary described extruder in the claim 1 to 4, 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. according to arbitrary described extruder in the claim 1 to 4, it 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. according to arbitrary described extruder in the claim 1 to 4, 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: structure and machine barrel (1) that described pellet device (4) can whole half-twist are set together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207554368U CN203046215U (en) | 2012-12-31 | 2012-12-31 | Extruding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207554368U CN203046215U (en) | 2012-12-31 | 2012-12-31 | Extruding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203046215U true CN203046215U (en) | 2013-07-10 |
Family
ID=48729207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207554368U Withdrawn - After Issue CN203046215U (en) | 2012-12-31 | 2012-12-31 | Extruding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203046215U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990902A (en) * | 2012-12-31 | 2013-03-27 | 浙江栋斌橡机螺杆有限公司 | Extruding machine |
| CN104044224A (en) * | 2014-06-27 | 2014-09-17 | 张家港市联达机械有限公司 | Wiping and pre-pelleting machine |
-
2012
- 2012-12-31 CN CN2012207554368U patent/CN203046215U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990902A (en) * | 2012-12-31 | 2013-03-27 | 浙江栋斌橡机螺杆有限公司 | Extruding machine |
| CN104044224A (en) * | 2014-06-27 | 2014-09-17 | 张家港市联达机械有限公司 | Wiping and pre-pelleting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130710 Effective date of abandoning: 20150715 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130710 Effective date of abandoning: 20150715 |
|
| RGAV | Abandon patent right to avoid regrant |