CN102114699B - Mixed pin barrel cold feeding extruder - Google Patents
Mixed pin barrel cold feeding extruder Download PDFInfo
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- CN102114699B CN102114699B CN2011100256531A CN201110025653A CN102114699B CN 102114699 B CN102114699 B CN 102114699B CN 2011100256531 A CN2011100256531 A CN 2011100256531A CN 201110025653 A CN201110025653 A CN 201110025653A CN 102114699 B CN102114699 B CN 102114699B
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- pin
- tangential
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- machine barrel
- pins
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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
- B29C48/68—Barrels or cylinders
- B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
- B29C48/687—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having projections with a short length in the barrel direction, e.g. pins
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a mixed pin barrel cold feeding extruder which comprises a machine barrel installed on a feeding base body, wherein, a screw bolt is arranged inside the machine barrel; a plurality of rows of radial pins are arranged in the length direction of the machine barrel; the radial pins are fixed on the machine barrel through spiral pressing caps; end sockets of the pins stick into a screw slot of the screw bolt and are close to the root surface of the screw bolt; a circumferential grooving is formed in the corresponding position on a screw edge of the screw bolt, and the pins can be inserted in the circumferential grooving; a plurality of rows of tangential pins are also arranged on the mixed pin barrel cold feeding extruder; the tangential pins penetrate through pin holes formed on the machine barrel, and penetrate through the screw slot of the screw bolt in the tangential direction of the screw bolt; the circumferential grooving is formed in the corresponding position on the screw edge of the screw bolt, and the pins can penetrate through the circumferential grooving; the two ends of each tangential pin are fixed on the machine barrel by nuts through external threads. The tangential pins adopt hollow structures, and fluid cooling medium can pass through the hollow structures. Compared with a common radial pin barrel cold feeding extruder, the mixed pin barrel cold feeding extruder has the advantages of better plasticization mixing effect, lower extrusion temperature, higher production capacity and wider application range.
Description
Technical field
The invention belongs to rubber processing machinery equipment, particularly be a kind of mixed pin barrel cold feeding extruder.
Background technology
Radially pin barrel cold feed extruder is since last century, the mid-1970s entered the rubber processing field of industrial production, because having high output, it make cold feeding replace hot feeding to become a reality, and due to its lower extrusion temperature and the high superior combination properties such as homogeneity, obtain very extensive use at home and abroad in rubber industry, and occupied the dominant position of modern rubber extrusion forming equipment.From being born to now, radially the technology of pin barrel cold feed extruder is just always in development.Chinese patent " cylinder type cold feeding rubber extrusion moulding machine " (patent No. ZL94231236.8) provide between a kind of motor and gear reduction unit adopt triangle strip transmission, other pressure roller left and right bearing bracket side wear screw thread with other pressure roller switched in opposite return glue groove, pin barrel adopt can before and after the pin barrel cold feed extruder technology of the full symmetrical configuration installed of transposing, purpose is to reduce spatial volume, improve standardization level, reduce noise and prevent that other pressure roller two ends from leaking glue.
Chinese patent " cooling structure for pin of pin extruder " (patent No. ZL200320131569.9) provide a kind of cooling structure for pin of pin barrel cold feed extruder.The pin that radially arranges along screw rod has hollow chamber, by insert the logical circulating cooling liquid of inner tube in chamber, or by directly add phase-change material (as paraffin, dry ice) in chamber, carry out pin cooling, thereby, when extruding the processing sizing material, more effectively cooling to the sizing material mid portion, under meeting the requirements prerequisite, extrusion temperature improves extrusion capacity.
Chinese patent " pin cold feed extruder " (patent No. ZL200920232372.1) provides a kind of radially pin length in machine barrel to be threaded connection can regulate and respectively arrange the pin spacing along extruding the technology that direction is successively decreased.Its objective is according to bipeltate and extrude the processing needs, effectively regulate and control the sizing material temperature, avoid sizing material " overheated " to cause in advance sulfur foam.
By above-mentioned patent as seen, at present radially the technological development direction of pin barrel cold feed extruder mainly concentrate on drive system, other pressure roller drawing-in device and pin aspect.Although radially pin barrel cold feed extruder has many excellent properties, with sizing material contact length little (in the screw channel degree of depth), limited plasticizing effect due to pin radially; And the intrinsic high viscosity of sizing material can inevitably produce a large amount of frictional heats in extrusion, even radially pin has adopted cooling provision, because its frigorimeter area is restricted.Therefore, for preventing from degrading with incipient scorch and considering that the upper limit of the processing temperature of sizing material own retrains, the maximum (top) speed of pin barrel cold feed extruder screw rod must limit, and can not further improve production capacity by increasing screw speed merely, and production capacity and economy reduce as a result.
Summary of the invention
Technical problem to be solved by this invention just is to provide a kind of plasticizing mixed effect and the better pin barrel cold feed extruder of cooling effect, and it can significantly improve production capacity by further increase screw speed.
A kind of mixed pin barrel cold feeding extruder of the present invention, comprise the machine barrel that is arranged on the feeding pedestal, be provided with screw rod in machine barrel, along the barrel length direction, radially pin of some rows is set, respectively radially pin is fixed on machine barrel by the spiral pressure cap, the pin termination is stretched in screw channel and near surface, screw rod root footpath, has to hold at the corresponding site of screw rod spiral shell rib and inserts the radially circumferential grooving of pin; It also is provided with the tangential pin of some rows, described tangential pin passes the pin hole on machine barrel, along screw rod tangentially pass screw channel, have at the corresponding site of screw rod spiral shell rib and hold the circumferential grooving that passes tangential pin, tangential pin two ends are fixed on machine barrel with nut by external screw thread.
As improvement of the present invention, inner at tangential pin, be provided with cooling channels along whole length direction, tangential pin nails on and is provided with cooling channels import and outlet, connects the outer circulation cooling device by import with being connected.
Above-mentioned every row's tangential pin can be cascaded by pipeline, and respectively arranges tangential pin and be divided into some groups, and every group is cascaded by pipeline respectively, and each group connects independently outer circulation cooling device.
As a further improvement on the present invention, tangential pin can arrange in pairs, and lays respectively at the both sides of machine barrel.Tangential pin is on the same cross section of machine barrel with radially pin is corresponding.The machine barrel cross section is preferably rectangle, is arranged on machine barrel with convenient tangential pin.
Pin of the present invention arranges and is divided into two kinds, and a kind of is tangential arrangement along screw rod, and another kind is the arranged radially along screw rod; Tangential pin is hollow structure, can through-flow body cooling medium; The tangential pin that has the hollow cooling structure by setting, the plasticizing that has not only strengthened sizing material mixes ability, and film-cooled heat and cooling effect have greatly been increased, can be when guaranteeing lower extrusion temperature and extruding quality uniformly, significantly improve production capacity by further increase screw speed, and the range of work is more extensive.
Description of drawings
The mixed pin barrel cold feeding extruder extruding part transversary cutaway view that Fig. 1 is to provide,
The mixed pin barrel cold feeding extruder extruding part vertical structure cutaway view that Fig. 2 is to provide,
Wherein: 1 is machine barrel, and 2 is screw rod, and 3 is tangential pin, and 4 is nut, and 5 is the spiral pressure cap, and 6 are pin radially, and 7 is the machine barrel cooling duct, and 8 is the feeding pedestal, and 9 is the feeding lining, and 10 is other pressure roller driven wheel.
The specific embodiment
Referring to Fig. 1 and Fig. 2, the invention provides a kind of mixed pin barrel cold feeding extruder structure, include machine barrel 1, along the barrel length direction, the tangential pin 3 of number row and pin 6 radially are set, every row is two undercuts to pin 3 and two pin 6 radially.Tangential pin 3 passes the pin hole in machine barrel 1, along screw rod 2 tangentially be placed in screw channel, and do not interfere with screw rod 2.Tangential pin two ends use nut 4 to be fixed on machine barrel 1 by external screw thread.In tangential pin 3, be provided with the cooling channels (not shown), so that cooling tangential pin 3 is taken away the frictional heat in extrusion.All respectively arrange tangential pin 3 be divided into several groups cooling, the tangential pin 3 in each cooling group on every row, each row tangential pin 3 between all be cascaded by pipeline, carry out separately circulating cooling by temperature control equipment (TCU).
Radially pin 6 is the same with the pin of common radially pin barrel cold feed extruder, is fixed in machine barrel 1 by spiral pressure cap 5.
The cross section of machine barrel 1 is rectangular configuration, and purpose is to be convenient to install tangential pin 3.Machine barrel 1 is arranged on feeding pedestal 8 with cantilevered fashion by bolt, is provided with removable feeding lining 9 in feeding pedestal 8, and the other pressure roller driven wheel 10 at screw rod 2 rear portions is used for driving other pressure roller.
The invention provides a kind of thinking and implementation method of mixed pin barrel cold feeding extruder; concrete application approach is a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (5)
1. mixed pin barrel cold feeding extruder, comprise the machine barrel (1) that is arranged on feeding pedestal (8), be provided with screw rod (2) in machine barrel (1), along machine barrel (1) length direction, radially pin (6) of some rows is set, respectively radially pin (6) is fixed in machine barrel (1) by spiral pressure cap (5), radially pin (6) termination is stretched in screw rod (2) screw channel and near the surface, root footpath of screw rod (2), has to hold at the corresponding site of screw rod (2) spiral shell rib and inserts the radially circumferential grooving of pin (6); It is characterized in that it also is provided with the tangential pin of some rows (3), described tangential pin (3) passes the pin hole on machine barrel (1), tangentially pass screw rod (2) screw channel along screw rod (2), have at the corresponding site of screw rod (2) spiral shell rib and hold the circumferential grooving that passes tangential pin (3), tangential pin (3) two ends are fixed on machine barrel (1) by external screw thread nut (4); Inner at tangential pin, be provided with cooling channels along whole length direction, tangential pin (3) is provided with cooling channels import and outlet, connects the outer circulation cooling device by import with being connected.
2. mixed pin barrel cold feeding extruder according to claim 1, it is characterized in that the tangential pin on described every row is cascaded by pipeline, and respectively arrange tangential pin and be divided into some groups, every group is cascaded by pipeline respectively, and each group connects independently outer circulation cooling device.
3. mixed pin barrel cold feeding extruder according to claim 1 and 2, is characterized in that tangential pin (3) arranges in pairs, and lay respectively at the both sides of machine barrel (1).
4. mixed pin barrel cold feeding extruder according to claim 1 and 2 is characterized in that tangential pin (3) and radially pin (6) is corresponding, is on the same cross section of machine barrel (1).
5. mixed pin barrel cold feeding extruder according to claim 1 and 2, is characterized in that machine barrel (1) cross section is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100256531A CN102114699B (en) | 2011-01-24 | 2011-01-24 | Mixed pin barrel cold feeding extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100256531A CN102114699B (en) | 2011-01-24 | 2011-01-24 | Mixed pin barrel cold feeding extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102114699A CN102114699A (en) | 2011-07-06 |
| CN102114699B true CN102114699B (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100256531A Active CN102114699B (en) | 2011-01-24 | 2011-01-24 | Mixed pin barrel cold feeding extruder |
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| Country | Link |
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| CN (1) | CN102114699B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5531059B2 (en) * | 2012-06-29 | 2014-06-25 | 株式会社日本製鋼所 | Twin screw extruder |
| CN103600479A (en) * | 2013-12-04 | 2014-02-26 | 青岛科技大学 | Tangential pin barrel cold feed extrusion method and device |
| CN105984109B (en) * | 2015-01-27 | 2019-09-13 | 青岛软控机电工程有限公司 | Extruder |
| CN109049615A (en) * | 2018-07-18 | 2018-12-21 | 金杯电工衡阳电缆有限公司 | Extruder barrel improved structure |
| JP7180244B2 (en) * | 2018-09-27 | 2022-11-30 | セイコーエプソン株式会社 | Plasticizing device |
| CN114311606A (en) * | 2021-12-17 | 2022-04-12 | 江苏睿博环保设备有限公司 | Based on two-way set screw constructional device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062492A (en) * | 1990-12-14 | 1992-07-08 | 汉诺威赫曼伯斯托福机械制造公司 | The extruder of difficultly miscible extrudates |
| CN201082579Y (en) * | 2007-08-15 | 2008-07-09 | 恩太思国际贸易(上海)有限公司 | Planet screw extruder with protrusion type rack bar |
| CN201979687U (en) * | 2011-03-22 | 2011-09-21 | 无锡市江南橡塑机械有限公司 | Pin barrel cold feed extruder |
-
2011
- 2011-01-24 CN CN2011100256531A patent/CN102114699B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062492A (en) * | 1990-12-14 | 1992-07-08 | 汉诺威赫曼伯斯托福机械制造公司 | The extruder of difficultly miscible extrudates |
| CN201082579Y (en) * | 2007-08-15 | 2008-07-09 | 恩太思国际贸易(上海)有限公司 | Planet screw extruder with protrusion type rack bar |
| CN201979687U (en) * | 2011-03-22 | 2011-09-21 | 无锡市江南橡塑机械有限公司 | Pin barrel cold feed extruder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102114699A (en) | 2011-07-06 |
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