CN201728842U - Miniature double-cone opposite rotation double-screw extrusion tester - Google Patents
Miniature double-cone opposite rotation double-screw extrusion tester Download PDFInfo
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- CN201728842U CN201728842U CN2010201868521U CN201020186852U CN201728842U CN 201728842 U CN201728842 U CN 201728842U CN 2010201868521 U CN2010201868521 U CN 2010201868521U CN 201020186852 U CN201020186852 U CN 201020186852U CN 201728842 U CN201728842 U CN 201728842U
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- feeding device
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Abstract
The utility model discloses a miniature double-cone opposite rotation double-screw extrusion tester, which comprises an extrusion mixing plastifying system, a speed distributing device, a power source, a feeding device, an automatic circulating extrusion converting device, a manual direct-extrusion and circulating-extrusion converting device, an electrical control device and a pneumatic control device. A double-head spiral groove air (or water) circulating cooling device and a quantitative feeding device are designed inside a feeding drum. In addition, by the aid of the design of a circulating extrusion path and a flow channel, the shape of a rotary valve, clearance screws with different depths and double screws in the same direction, the device has the advantages of smaller volume, less raw material using amount, low energy consumption, convenient and reliable use, large storage loading torque and the like, and is preferred for polymeric material research and teaching.
Description
Technical field
The utility model relates to a kind of multi-position composite progressive die manufacturing apparatus, especially a kind of can be at the multi-position composite progressive die manufacturing apparatus of in-mould wire extrusion.
Background technology
At present, the external miniature tapered twin-screw circulatory flow of producing is with to extrude route reverse, causes that material all remains in the body in the circulatory flow, can't extrude, and causes actual extrusion capacity to significantly reduce, and do not have pressure to show do not have pressure sensor when extruding.
The utility model content
Problem to be solved in the utility model is at the prior art deficiency, process is to various thermoplasticity and part thermoset macromolecule material repetition test, provide a kind of volume littler, the raw material consumption is few, power consumption is low, easy to use and reliable, deposit the big miniature bipyramid Heterodromy double-screw extrusion test machine of set torque.
The technical solution of the utility model is: a kind of miniature bipyramid Heterodromy double-screw extrusion test machine, mix the plasticizing system by extruding, the speed distributor, power source, feeding device, automatically circulate, extrude conversion equipment, manually directly extrude, circulate and extrude conversion equipment, electric apparatus control apparatus and air control unit constitute.
Extrude mixing plasticizing system and include left-handed screw 11 and right handed screw 12, place down side by side in the machine barrel 13, the other end of left-handed screw 11 and right handed screw 12 intersects closed, be the scissors shape, closing end is connected with pressure sensor 15, pressure sensor 15 belows are connected with rotary valve 16, and rotary valve 16 places circulation extrusion channel 7.
The other end of circulation extrusion channel 7 is connected with automatic rotary valve 14, and it is second discharging opening 18 with the port that this bearing of trend is divided into circulatory flow 9 and second extrusion channel, 10, the first extrusion channels.
Be connected with nozzle 1 in the lower end of second discharging opening 18, nozzle 1 is placed in the top of injection rod 4, outer wrap has injection cover 2, injection cover 2 is fixing by injection cover support 3, upper end at injection cover support 3 is provided with front spring 6, the lower end is provided with rear spring 5, and front spring 6 places between injection cover support 3 and the following machine barrel 13.
Extrude the mixing plasticizing decorum and also include machine barrel 19, machine barrel 19 is run through in the feeding device lower end, and the part that feeding device is positioned at machine barrel 19 outsides connects motor 21, and motor 21 links to each other with reductor 20.
Feeding device has two parts, and a part is positioned at the outside of machine barrel 13, and a part places the inside of machine barrel 13.
Wherein, the part that feeding device is positioned at machine barrel 13 outsides is respectively reinforced cylinder 22, pressure feeding device 23, hopper 24 and dosing device 25, reinforced cylinder 22 is positioned at the top of feeding device, the bottom is connected with forcing feeding device 23, forcing feeding device 23 and dosing device 25 to be cylindrical tube also closely is connected, hopper 24 has a through hole forcing to be the infundibulate oblique cutting on cylindrical tube between feeding device 23 and the dosing device 25 with the cylindrical tube junction.
The part that feeding device is positioned at machine barrel 13 inside is the end portion of dosing device 25, outer wall at end portion is provided with reinforced cover 33, be close in the outside of reinforced cover 33 charging aperture cooling/heating apparatus 26 and heater 31 are set, have an air intake water inlet 30 to be arranged on the reinforced cover 33, the top of laying the end portion of a heat insulation loop 32 dosing devices 25 in the bottom of reinforced cover 33 is a discharging opening 27.
In addition, below the inside of last machine barrel 19, also be provided with cylinder 28 and automatic rotary valve 14.
Description of drawings
Fig. 1 is the overall structure schematic diagram;
Fig. 2 is the reinforced schematic diagram of last machine barrel;
Fig. 3 is the pivoted arm schematic diagram;
Fig. 4 is the feeding device schematic diagram;
Fig. 5 changes the core schematic diagram for charger;
Fig. 6 is the reinforced runner schematic diagram of machine barrel up and down;
Fig. 7 is the reinforced schematic diagram of following machine barrel;
Fig. 8 revolves the screw rod schematic diagram about being.
Mark among the figure: 1-nozzle; 2-injects cover; 3-injection cover support; The 4-injection rod; The 5-rear spring; The 6-front spring; 7-circulation extrusion channel; 8-first extrusion channel; The 9-circulatory flow; 10-second extrusion channel; The 11-right handed screw; The 12-left-handed screw; Machine barrel under the 13-; The automatic rotary valve of 14-; The 15-pressure sensor; The 16-rotary valve; 17-first discharging opening; 18-second discharging opening; The last machine barrel of 19-; The 20-reductor; The 21-motor; The 22-cylinder that feeds in raw material; 23-forces feeding device; The 24-hopper; The 25-dosing device; 26-charging aperture cooling/heating apparatus; The 27-discharging opening; The 28-cylinder; The automatic rotary valve of 29-; 30-air intake water inlet; The 31-heater; The 32-heat insulation loop; The reinforced cover of 33-; The 34-motor that feeds in raw material; The 35-charger changes core; The 36-rotating shaft; The 37-pivoted arm.
The specific embodiment
The utility model mixes the plasticizing system by extruding, the speed distributor, and power source, feeding device circulates, extrudes conversion equipment automatically, manually directly extrudes, circulates and extrude conversion equipment, electrical equipment control, pneumatic control.
Wherein, extrude mixing plasticizing system and include left-handed screw 12, right handed screw 11, last machine barrel 19, following machine barrel 13, charging aperture cooling/heating apparatus 26 and heater 31 etc.; The speed distributor include distribute casing, distribute tapered gear, various axle, cover, bearing as injection cover 2, reinforcedly overlap 33, rotating shaft 36, driving coupling cover etc.; Power source comprises motor 21, reductor 20 etc.; Feeding device requires that according to difference manual feeding device is arranged, and automatic ration feeding device such as dosing device 25 force feeding device as forcing feeding device 23 etc. automatically; Automatically circulate, extrude conversion equipment and include automatic rotary valve 14, cylinder 28, rotary valve 16 etc.; Manually directly extrude, circulate and extrude conversion equipment and include circulation extrusion channel 7, first extrusion channel 8, circulatory flow 9 and second extrusion channel 10 etc.; Electric apparatus control apparatus comprises various electrical equipment original papers; Air control unit comprises various pneumatic original papers etc.In addition, also comprise some indispensable apparatus commonly used, as nozzle 1, injection cover support 3, injection rod 4, rear spring 5, front spring 6, pressure sensor 15, first discharging opening 17 and second discharging opening 18, hopper 24, air intake water inlet 30 and heat insulation loop 32 etc.
Concrete working method is as follows:
As shown in Figure 1, native system is used by extruder and injector, and material is directly clamp-oned in the injection cover from extrusion, thereby directly is injected into needed batten goods in injector.Concrete operations are as follows:
(1) the LMP powder material is because the temperature of charge door is subjected to the influence of machine barrel heating sensing, and material is bonded on the charging aperture when reinforced.
(2) high melting-point hard pellet is because miniature extruder screw screw channel is little and shallow, and pellet is difficult to add in the machine barrel with manual mode.
In order to address the above problem, to widen the extruder scope of application and designed as lower device:
The A charging aperture takes silica material to do the conduction of heat insulation obstruct heat.
B designs twin-feed spiral groove wind (or water) cooling back installation in casing drum, the temperature of control charge door.
C is shown in Figure 4 and 5, and the design dosing device is controlled charging rate, is output away very soon thereby powder is entered in the screw channel, makes charge door not produce the stifled phenomenon of heap.
More than be to solve LMP powder problem
D carries out temperature control at casing drum outsourcing heating collar, makes the hard pellet of adding softening in advance.
E is shown in Fig. 2 and 3, and feeding device is forced in design, and by adjusting the pressurization cylinder pressure, according to different hardness raw material control positive feed dynamics, operating procedure is as follows:
Step 3, after reinforced the putting in place, the limiting cylinder bit switch transmits the signal of telecommunication, and reinforced bar returns, and tiltedly the material of hopper falls in the casing drum.
The external miniature tapered twin-screw circulatory flow of producing is with to extrude route reverse, cause the interior material of circulatory flow all to remain in the body, can't extrude, cause actual extrusion capacity to significantly reduce, and do not have pressure to show (not passing through pressure sensor) when extruding, do like this and bring following benefit:
1, as shown in Figure 1, we are designed to now, and same direction is extruded in circulation, and the circulatory flow material can all be extruded when extruding.Extrusion capacity can increase by 1/3.
2, cross section of fluid channel by
→ zero type, shown in Fig. 6 and 7, cross section of fluid channel each point mobile consistent (resistance equates) reduces remaining in a standstill, and makes the material first in first out, rotary valve position and alteration of form.
3, the design of rotary valve brings two benefits:
The setting of A rotary valve position makes circulation not have the dead angle.
B as shown in Figure 7, the shaped design of rotary valve makes the cross section of fluid channel total travel
→ zero.
4, but extrusion is designed to the alias (see figure 7), thereby widen the scope of application, make miniature double screw extruder not only as the macromolecular material testing machine, also can be used as teaching with various plastic process moulding testing machines, change different interfaces and can connect heads such as plastic pipe, sheet material, bottle blowing, plastic overmold (electric wire coating, dacron thread coat), stretching and granulation, spray silk.
5, for convenience the use of different material has designed two outlets, and first to extrude be direct extrusion, is mainly used in easy plastic and decomposes raw material easily and use, and second extrusion is mainly used in needs circulation extrude raw material.
6, as shown in Figure 7, the screw rod design of depth gap, Heterodromy double-screw is extruded the big plasticizing of shearing force well, good mixing effect, but too big some the material strand of shearing force interrupts the generation decomposition easily, so we have designed dark gap, shallow gap at different raw materials, the gap is big more, and shearing force is more little, is fit to the lower raw material of olefines density.The little shearing force in gap is big, is fit to the thermal sensitivity raw material of noncrystalline shape, changes the kneading gap by changing gap A.
7, the design of the wide screw channel of screw rod feeding section cooperates the use of charge door cooling device, makes particulate material under the situation that does not adopt various feeding devices, and very unobstructed charging makes miniature double screw extruder operation more simple and convenient.
8, as shown in Figure 8, the design of parallel dual-screw, parallel dual-screw, its direction of motion of extruding is except to the screw rod microcephaly moves, material is along with Eight characters motion outside the screw rod direction of rotation work in the process of rotation, shearing force is significantly less than the incongruous double screw effect like this, but general set higher of its rotating speed, so mixed effect is better, the parallel dual-screw extruding machine of design, this machine is fit to the raw material responsive especially to shearing force, can discharge low-molecular material owing to increased internal vacuum pumping hardware at reinforced oral-lateral, and this also is fit to partial reaction and extrudes.
Above embodiment only is the miniature bipyramid Heterodromy double-screw of the utility model extrusion test machine a kind of embodiment wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as restriction of the present utility model.Should be noted that; because stamping parts has nothing in common with each other; required processing mold has nothing in common with each other; therefore for the person of ordinary skill of the art; do not breaking away under the prerequisite of the present utility model; can also make some distortion, but be modified into the manufacturing installation of the concrete part of various mould internal tappings, these all belong to protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with claims.
The utility model is the professional equipment that a kind of development and Design is manufactured macromolecular material test usefulness. Through to various thermoplasticity and part thermoset macromolecule material repetition test, so that this equipment has a volume is littler, the raw material consumption is few, power consumption is low, easy to use and reliable, deposits the characteristics such as set torque is big, and it is the preferred unit of macromolecular material research and teaching usefulness.
Claims (7)
1. miniature bipyramid Heterodromy double-screw extrusion test machine, mix the plasticizing system by extruding, the speed distributor, power source, feeding device, automatically circulation, extrude conversion equipment, manually directly extrude, conversion equipment is extruded in circulation, electric apparatus control apparatus and air control unit constitute, it is characterized in that: the described mixing plasticizing system that extrudes includes left-handed screw (11) and right handed screw (12), place down side by side in the machine barrel (13), the other end of left-handed screw (11) and right handed screw (12) intersects closed, is the scissors shape, and closing end is connected with pressure sensor (15), pressure sensor (15) below is connected with rotary valve (16), and rotary valve (16) places circulation extrusion channel (7).
2. miniature bipyramid Heterodromy double-screw extrusion test machine according to claim 1, it is characterized in that: described circulation extrusion channel (7) extends to first extrusion channel (8) rotary valve (16) closure, and the port of described first extrusion channel is first discharging opening (17);
The other end of described circulation extrusion channel (7) is connected with automatic rotary valve (14), and it is divided into circulatory flow (9) and second extrusion channel (10) with this bearing of trend, and the port of described first extrusion channel is second discharging opening (18).
3. miniature bipyramid Heterodromy double-screw extrusion test machine according to claim 1, it is characterized in that: the lower end of described second discharging opening (18) is connected with nozzle (1), described nozzle (1) is placed in the top of injection rod (4), outer wrap has injection cover (2), described injection cover (2) is fixing by injection cover support (3), upper end at injection cover support (3) is provided with front spring (6), the lower end is provided with rear spring (5), and described front spring (6) places described injection cover support (3) and described down between the machine barrel (13).
4. according to the described miniature bipyramid Heterodromy double-screw extrusion test machine of one of claim 1-3, it is characterized in that: the described mixing plasticizing decorum of extruding also includes machine barrel (19), machine barrel (19) is run through in the feeding device lower end, described feeding device is positioned at the outside part of machine barrel (19) and connects motor (21), and described motor (21) links to each other with reductor (20).
5. miniature bipyramid Heterodromy double-screw extrusion test machine according to claim 1, it is characterized in that: it is respectively reinforced cylinder (22) that described feeding device is positioned at the described outside part of machine barrel (13) that goes up, force feeding device (23), hopper (24) and dosing device (25), described reinforced cylinder (22) is positioned at the top of feeding device, the bottom is connected with forcing feeding device (23), described pressure feeding device (23) is cylindrical tube with dosing device (25) and closely is connected, described hopper (24) is positioned between described pressure feeding device (23) and the dosing device (25), be the infundibulate oblique cutting on cylindrical tube, one through hole arranged with the cylindrical tube junction.
6. miniature bipyramid Heterodromy double-screw extrusion test machine according to claim 1, it is characterized in that: it is the end portion of dosing device (25) that described feeding device is positioned at the described part that goes up machine barrel (13) inside, outer wall at end portion is provided with reinforced cover (33), be close in the outside of reinforced cover (33) charging aperture cooling/heating apparatus (26) and heater (31) are set, have an air intake water inlet (30) to be arranged on the reinforced cover (33), the top of laying the end portion of the described dosing device of a heat insulation loop (32) (25) in the bottom of described reinforced cover (33) is discharging opening (27).
7. miniature bipyramid Heterodromy double-screw extrusion test machine according to claim 6 is characterized in that: described below, inside of going up machine barrel (19) is provided with cylinder (28) and automatic rotary valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201868521U CN201728842U (en) | 2010-05-04 | 2010-05-04 | Miniature double-cone opposite rotation double-screw extrusion tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201868521U CN201728842U (en) | 2010-05-04 | 2010-05-04 | Miniature double-cone opposite rotation double-screw extrusion tester |
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| Publication Number | Publication Date |
|---|---|
| CN201728842U true CN201728842U (en) | 2011-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201868521U Expired - Fee Related CN201728842U (en) | 2010-05-04 | 2010-05-04 | Miniature double-cone opposite rotation double-screw extrusion tester |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072250A (en) * | 2013-01-24 | 2013-05-01 | 佛山市日丰企业有限公司 | Material extrusion structure and material extrusion method of double-crew extruder |
| CN103752195A (en) * | 2014-01-26 | 2014-04-30 | 东华大学 | Vertical double-cone micro mixer |
| CN104280264A (en) * | 2014-10-28 | 2015-01-14 | 无锡大东机械制造有限公司 | Actuating mechanism of telescopic spiral pneumatic sampler |
| CN110103444A (en) * | 2018-01-11 | 2019-08-09 | 上海金湖挤出设备有限公司 | Big L/D ratio conical double screw extruder |
| CN111683800A (en) * | 2018-02-20 | 2020-09-18 | 科尔梅克股份公司 | Twin screw mixer-extruder comprising a pressurizer body of controlled volume for defining a composite chamber |
-
2010
- 2010-05-04 CN CN2010201868521U patent/CN201728842U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072250A (en) * | 2013-01-24 | 2013-05-01 | 佛山市日丰企业有限公司 | Material extrusion structure and material extrusion method of double-crew extruder |
| CN103752195A (en) * | 2014-01-26 | 2014-04-30 | 东华大学 | Vertical double-cone micro mixer |
| CN103752195B (en) * | 2014-01-26 | 2015-10-21 | 东华大学 | A kind of Vertical double-cone micro mixer |
| CN104280264A (en) * | 2014-10-28 | 2015-01-14 | 无锡大东机械制造有限公司 | Actuating mechanism of telescopic spiral pneumatic sampler |
| CN110103444A (en) * | 2018-01-11 | 2019-08-09 | 上海金湖挤出设备有限公司 | Big L/D ratio conical double screw extruder |
| CN110103444B (en) * | 2018-01-11 | 2024-04-16 | 上海金湖挤出设备有限公司 | Conical double-screw extruder with large length-diameter ratio |
| CN111683800A (en) * | 2018-02-20 | 2020-09-18 | 科尔梅克股份公司 | Twin screw mixer-extruder comprising a pressurizer body of controlled volume for defining a composite chamber |
| CN111683800B (en) * | 2018-02-20 | 2022-07-01 | 科尔梅克股份公司 | Apparatus for mixing and extruding plastic material |
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Granted publication date: 20110202 Termination date: 20180504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |