CN87210386U - Banburying mixer - Google Patents
Banburying mixer Download PDFInfo
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- CN87210386U CN87210386U CN 87210386 CN87210386U CN87210386U CN 87210386 U CN87210386 U CN 87210386U CN 87210386 CN87210386 CN 87210386 CN 87210386 U CN87210386 U CN 87210386U CN 87210386 U CN87210386 U CN 87210386U
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- rotor
- mixing
- spiral ridge
- axial
- oiling
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Abstract
The utility model discloses a banbury mixer which is a mixing and plastication device generally used for the mixing of rubber, plastic and rubber and plastic. The rotors of the banbury mixer take the effective technical measures of closing a circular disk, enlarging a spiral angle, optimizing geometric parameter, etc., so that the mixing property and the adaptability of the rotors are greatly increased, which is suitable for rebuilding the existing machine platforms. In addition, because of the use of an NGW planetary reducer, the improvement of an axial sealing device and the change of a cooling form, the utility model has the advantages of favorable mixing quality, high productive efficiency, low energy consumption, small occupation area and light weight.
Description
The present invention relates to the mixing apparatus that a kind of processing rubber separately or plastics are used, particularly a kind of can processing rubber, again can processing plastic; Can be used for blend rubber processing, can be used for rubber again, mould and other material blend, and the mixing apparatus of other material blend processing usefulness.
At present, rubber, mould the mixing apparatus of processing usefulness, main what adopt is banbury.
Present homemade banbury mostly is the product (seeing Fig. 1 and 2) in imitated external 40-50 age, because the main hydrid component rotor (11) of banbury, not too reasonable in the selection of structural design and geometric parameter, caused the uniformity, dispersed bad of mixed material.Simultaneously, also make its scope of application and adaptability relatively poor, processing rubber can not processing plastic, processing plastic can not processing rubber.In addition, because type of belt drive mostly adopts by motor (1), through reduction box (3), process is than gear (4), and through the old kind of drive of shaft coupling (2), efficient is low so transmission system is huge, and floor space is big.Unreasonable and the variable scope of speed ratio selection is little in addition, has also caused bad adaptability, the long shortcoming of mixing cycle of board.Because unreasonable on the structure of the shaft end seal (5) of banbury (6), it is comparatively serious to make existing banbury leak material, has both polluted environment, has also wasted material.Banbury (6) is a kind of strong shearing, galling board, and its mixing locular wall (10) and rotor (11) are in order to resistance to wear and to corrode, and its working surface is all wanted the pile-up welding hard alloy layer.But be exactly that so its surface abrasion is also comparatively serious, still needs regular repair welding.Both influence production, also influenced the quality of the material that refining glue or refining mould.Because the material in test-run a machine stage waits foreign material because of having the weldering bits after the repair welding, and can not normally use.The effect of floating weight (9) adds the back by loading hopper (8) and the pneumatically promotion drops to shown position and compresses material when material, itself also is a part of mixing locular wall (10), when adding the powder of various intermixtures, floating weight (9) does not lift, material is to be added by loading hopper (8), and is bled in mixing chamber (7) by (9) and the space of (10).But it is flat answering the top of floating weight (9), and fall behind its top down is in the below of feeding in raw material hopper (8), so the material that adds drops easily not join on the top of floating weight (9) and goes in the mixing chamber (7), its result will influence the performance of material.Following top bolt (12) is that discharging is used.
Fig. 3 to Fig. 5 be the Japanese help 9 people such as rattan on June 22nd, 1979 to U. S. application, application number is No. 2429087 French Patent (FRP)s of being quoted in 51001.(this patent was authorized patent No. 4284358 by USPO on August 18th, 1981).Quote number of pages and see the 1-10 page or leaf of No. 4284358 patent documentations and the 15th page and relevant accompanying drawing of No. 2429087 patent documentations.
Accompanying drawing 3-5 is the digonous closed-smelting machine rotor of No. 2429087 disclosed a kind of two spiral ridges of patent.A long spiral ridge (13) and short spiral ridge (14) are respectively arranged on rotor (17), and their axial lengths separately are L
1And L
2, its axial length L
1/ L
2Ratio range be 2.5-10.Axial length L
1/ L
2Ratio big more, L just is described
1Active length wide more.L
1Wide more just favourable more to shear-mixed, because the long spiral ridge (13) of closed-smelting machine rotor is the main position of mainly circumferentially mixing and shearing.Therefore, suitably strengthen L
1Length helps improving mixed effect.In the former invention about L
1-L
2The most effective saying is incomplete in 2.5-10, can break through.
The two ends of the active section of rotor (17) are natures or directly communicate with the axle rank, no any circumferential and sealing protrusion radially between axle rank and the working rotor section.Therefore, joined by charge door (19) as the material of certain pressure and to be stirred in the mixing chamber (18) when mixing, material is easy to be extruded in the literary composition of gap (15) and goes.Like this, cause wearing and tearing not only for mixing locular wall (16), and easily cause the stuck of rotor (17), in addition, bring bad influence also can for the shaft end seal of rotor (17), promptly cause material leaking outside by gap (15).The material that is deposited in the gap (15) may form crystal bulk or incipient scorch because the time of staying is grown, and when they are mixed in the normal material when mixed, then can influence the quality of mixed material.
In addition, the helixangle of the short spiral ridge (14) of former invention rotor (17)
2Be generally about 45 °, β
1Be 30 °, β
2Big, help guaranteeing the axial mixing of material, because the effect of short spiral ridge (14) is exactly that material can be moved vertically, and then finish axial mixing.And to guarantee that material mixes vertically, just must guarantee β
2＞φ.(φ is material and rotor surface angle of friction, and φ is generally 37 °-42 °, and it is subjected to the influence of the variation of temperature, material kind.) still, because the material temperature excursion in the banbury is between 35 °-170 °, therefore, angle of friction also is very big with variation of temperature, so β
2About 45 °, can not guarantee always greater than φ.Therefore, the axial mixing of material also is indefinite the assurance.Thus, disclosed mixing and agitating device exist above-mentioned deficiency in No. 4284358 patents of the U.S. and No. 2429087 French Patent (FRP)s being quoted thereof, await improving.
Task of the present invention just is to overcome existing above-mentioned shortcoming and defect in the prior art, and a kind of mixed effect is better, production efficiency is higher, the scope of application is wide, volume is little, in light weight, the novel banbury of province's energy consumption and provide.
To be that the structural representation of homemade banbury is main look and cutaway view attached Fig. 1 and 2.
Accompanying drawing 3 to 5 is No. 2429087 disclosed banbury two rib rotor master figure and partial sectional views of French Patent (FRP).
Accompanying drawing 6 and 7 is master figure and cutaway views of closed-smelting machine rotor part of the present invention.
Accompanying drawing 8 is rotor axial sealing device structure figure of homemade banbury.
Accompanying drawing 10 is floating weight structural representations of homemade banbury.
Accompanying drawing 11 is the floating weight structural representations after the present invention improves.
Below, in connection with accompanying drawing the present invention is described in further detail.
Fig. 6 is a front view of the present invention, added symmetrical sealing disk (22) in the design of the two ends of the section L of workshop section of rotor (20), the effect of sealing disk (22) is: prevent material in the process of mixing, plastifying, because the material that the responsive to axial force of the short spiral ridge (26) of rotor (20) causes is directly pushed in mixing locular wall (23) and gap (21).It has not only avoided the wearing and tearing of material to mixing locular wall (23), has prolonged the service life of mixing locular wall (23).And, alleviated the pressure of the leakage material that material locates the end play (21) of rotor (20).Because sealing disk (22) has stopped the leakage of granular material, as the effect of having played a kind of labyrinth seal, therefore, can play well and slow down leakage, improve sealing effectiveness, reduce less environmental contamination.If the sealing device (see figure 9) after this effect and the present invention improved combines, its axial seal effect is better.Fig. 8 is a rotor axial sealing device (5) commonly used in the prior art, and it is made up of baffle ring (27), outer seal ring (28), inner seal ring (32), sliding bearing (31), stage clip (30) etc.When banbury is worked, because the effect of stirring and pressure, material will leak to gap (15) from direction shown in the arrow, when material from leakage arrives sealing surface (29), because the effect of stage clip (30) makes inner seal ring (32) and outer seal ring (28) be close to, leak to stop material.Simultaneously from oilhole injection pressure oil with material the softening gap (15) of bleeding and prevent dry friction.Its shortcoming is: sealing surface (29) is the last critical point of sealing, in case this face envelope incessantly, promptly causes Lou material.On the other hand, the structure more complicated because it has two oil filler points, as can be seen from Figure 8, does not have sealing disk (22) because the rotor axle head designs, and leak pressure is bigger, and it also is higher leaking the material possibility.Fig. 9 is the armature spindle end sealing device after the present invention improves, and it mainly uses into original stage clip (30) instead extension spring (34), so, just original external seal face (29) is changed into the sealing surface (35) of inner seal.Because the more close leakage-gap of inner sealing surface (35) (21), its sealing effectiveness has increased.And, behind the material process inner sealing surface (35), leak material pressure and leak the material amount and all greatly reduce, a spot of leakage material is after the softening suction erosion of softening oil, promptly become paste, and paste itself has played the effect of similar one sealing ring, secondary has prevented a small amount of leaking of material approximately, therefore, sealing effectiveness is better than Fig. 8 structure.Be complementary with sealing disk (22) in addition, its sealing effectiveness is better.In addition, two original oil filler points are changed into directly connect thing (33) by oiling bolt or other and inject, not only reduced processing, simplify the structure, and, be convenient to maintenance, the cleaning tamper.Because intrinsic tilting oilhole all is directly to be drilled on the part that can not often dismantle, one material takes place blocks oilhole, just produces dry friction at once, and, after the obstruction, the inconvenience cleaning.
The acceleration mixing of materials has also been played in the adding of sealing disk (22), shortens mixing cycle, and then the effect of enhancing productivity.Because, the sealing disk stoped material to the inoperative section move may, material concentrated in the space of effective active section L of mixing chamber (24) and rotor (20), between a pair of rotor, realized mixing circulation effectively.
Sealing disk (22) is the main difference of the rotor (17) of critical piece rotor (20) and prior art Fig. 3 among the present invention, and its radial dimension can be at the base circle diameter (BCD) D greater than rotor (20)
1To the maximum rotating diameter D that is equal to or greater than rotor (20)
2Scope in choose.It is sealings at the two ends of the active section L of rotor (20): tangible annular protrusion thing.It is different from the design principle and the physical dimension requirement of the shaft shoulder in the machine components.
The helixangle of the short spiral ridge (26) of the rotor among the present invention (20)
2Be selected in 46 °-58 ° the scope, its preferred range is 49 °-55 °, and optimum range is 50 °-53 °, and it is different with another of prior art that it is difference of the present invention.Because strengthen β
2, can more effectively guarantee the condition β of material along the axially movable mixing of rotor (20)
2＞φ.Therefore, can more effectively impel the axial mixing of material, can improve rotor and be banbury, enlarge the scope of application of machine the adaptability under different temperatures, the different material situation.Therefore, adopt the banbury of this rotor, but mixed rubber not only, but also mixed plastic also can be suitable for the blend of two kinds of rubber and plastics and various materials.
In addition, the axial length L of the long spiral ridge (25) of the rotor among the present invention (20)
1Axial length L with short spiral ridge (26)
2Ratio range be at (L
1)/(L
2) be 10-12, promptly exceeded the said (L of former invention
1)/(L
2) be the optimum range of 2.5-10.Like this, the effect of long spiral ridge (25) in circumferential mixing, shear history of rotor (20) can be improved, mixing time can be shortened.
Rotor of the present invention (20) is also reducing to wedge angle θ (θ
Tg
-1(e)/(h)) made improvement (seeing Fig. 5 and Fig. 7) on the radius of curvature ratio of increase working face b and non-working surface c, so that ratio (b)/(c) is 0.55-0.75, optimum ratio is 0.60-0.70.Because reduce the ratio of (b)/(c), just equal to make the curved surface of the working face b of rotor (20) to become crooked more, make it with mixing locular wall (23) between the wedge area of formation more obvious, more help the material wedging.In like manner, reducing (b)/(c) also equals to make the curve of inoperative c one side of rotor (20) to become straight, and it is big that the space becomes, and makes that like this material after shearing through strong shear zone d has enough stress relaxation times, can improve the effect of mixing, shearing.
Mixing locular wall (23) has adopted the best boring formula type of cooling of cooling effect, and top bolt (12) (see figure 2) had all been taked cooling under rotor (20) floating weight (37) (seeing Figure 17) reached.The scope of application and the adaptability of the temperature control effect and the machine of machine have been improved greatly.
The employing of NGW planetary reduction gear reduces machine weight, floor space, makes complete machine structure compact more.Simultaneously, on the test of many times basis, taked applicability strong, high, medium and low three kinds of shear rates that shear rate is good have improved the production efficiency and the accommodation of banbury greatly.Because, the desired speed ratio of different materials, promptly shear rate is different.
On the material processed of rotor (20) and mixing locular wall (23), the present invention has adopted the diverse ways with the middle institute of prior art (Fig. 2), what the working surface of the rotor of Fig. 2 (11) and mixing locular wall (10) adopted is the processing method of pile-up welding hard alloy, and its wearability is not fine.The present invention can also carry out the surfacing of high-anti-friction hard alloy powder to the working surface of the rotor (20) of Fig. 6 and mixing locular wall (23) except pile-up welding hard alloy.This kind new method, efficient height not only is convenient to realize, and wearability and machining accuracy are all than high many of original pile-up welding hard alloy.To after mixing locular wall (23) processing, can improve the difference of hardness of the working surface of mixing locular wall (23) and rotor (20) especially, so that be higher than rotor (20) service life of mixing locular wall (23), because the processing of mixing chamber, repair welding is than rotor difficulty.
The present invention also improves the structure of the floating weight among prior art Fig. 2 (9) and the structure of loading hopper (8), sees Figure 10 and 11.The angle [alpha] of the loading hopper among Figure 10 (8) is bigger, when adding powder, be difficult for sliding in the mixing chamber, and, because the top of floating weight (9) and charge door be level almost, so overturning again, material adds the top that fashionable easy heap drops on floating weight (9), and can be bonded in top bad cleaning, and not only influence the Normal Takeoff and Landing of floating weight (9), also can damage machine.Therefore, the present invention has done this part and has redesigned (seeing Figure 11), and the width by loading hopper (36) one sides of floating weight (37) is reduced, and the gap that makes material fall becomes big, prevented that material from falling into the top of floating weight (17), overcome the existing problem of Figure 10.On the other hand, the angle of internal friction α of loading hopper (36) is reduced, make material be convenient to.
Therefore, the most outstanding characteristics of the present invention solve and have improved existing problem and shortage in the prior art exactly, have carried out the design and the improvement of above aspects.These designs, improvement, optimization not only have certain theoretical foundation, and have passed through the check of practice.Because the selection of above-mentioned project organization of the present invention, geometric parameter and last conclusion all are to have passed through the test of many times summary, preferred plan of summarizing and parameter.
Test for the mixed HTPS of difficulty shows that the multi-functional banbury of this follow-on strong shearing needs mixed 30-40 minute than adopting high temperature mill mixing efficient to improve 20 times in φ 400 mills, and impact strength only reaches 8kg-cm/cm
2, and on this machine, only need to mix 1-1.5 minute, and impact strength can reach 11kg-cm/cm
2This machine is compared with existing same specification board, and mixing time has also shortened 1-2 doubly.
Therefore, banbury of the present invention is not only applicable to processing rubber, and is suitable for processing plastic, also is suitable for the blend of two kinds of materials of rubber and plastic and other various materials.Rotor described in the present invention (20) is not only applicable to the renewal and the transformation of digonous type banbury, is suitable for the transformation and the renewal of four rib type rotor banburies yet, also is suitable for the renewal and the transformation of unequal other type banbury of length spiral prominence rib number.
Therefore, novel banbury of the present invention is not only applicable to rubber, moulds industry, is applicable to mixing, plasticizing, stirring and the pulverizing of the material of chemical industry, building materials, light industry and other industry yet.
Claims (3)
1, a kind ofly can be used for the banbury that rubber or plastic processing are used separately, it is characterized in that by what transmission system, rotor, rotor axial sealing device, mixing locular wall, upper and lower top bolt and loading hopper were formed
A: the design of its two ends of rotor has a symmetrical disk, and the long spiral ridge of its rotor and the ratio of axial length (L1)/(L2) of lacking spiral ridge is at 10-12, the helixangle of the short spiral ridge of its rotor
2At 46 °-58 °, the working face b of its rotor and the radius of curvature ratio of non-working surface C are between 0.55-0.75;
B: its rotor axial sealing device has adopted the extension spring structure that is installed in the sliding bearing internal holes, and the left and right sides both ends of the surface of extension spring are fixing with sliding bearing and screw respectively;
C: adopt by the oiling screw attachment between the shelves ring of rotor axial sealing device and the outer seal ring, oiling screw inside can communicate with inner sealing surface after having an oiling through hole to be screwed into;
D: adopted 30 °-45 ° clip corner structure between perpendicular of the inclined-plane of loading hopper;
E: the plane, top of floating weight exceeds the charge door top, and less than the size of floating weight opposite side apart from the floating weight center line, and perpendicular plane, this lower end, side becomes charge door one side apart from the size of floating weight center line.
F: its transmission adopted planetary reduction gear, that speed change system has been taked is high and low, in three kinds of rotating speeds.
2, according to the described banbury of claim 1, it is characterized in that.
A: the radial dimension of the symmetrical disk of its rotor can be greater than rotor base circle diameter (BCD) D
1Extremely greater than the rotor maximum dimension D
2Scope in choose; The helixangle of the short spiral ridge of its rotor
2Can between 49 °-55 °, select; Axial length ratio (the L of the long spiral ridge of rotor and short spiral ridge
1)/(L
2) can between 10-11, select; The radius of curvature ratio of the working face b of rotor and the non-working surface C of rotor can be selected between 0.60-0.70;
B: the oiling screw of the axial sealer of its rotor is screwed into or inserts, and can be parallel or favours rotor axis and install, and can play to connect and two effects of oiling.
3, according to claim 1 or 2 described banburies, it is characterized in that:
A: the helixangle of the short spiral ridge of its rotor
2Can between 50 °～53 °, choose;
B: the oiling screw of the axial sealer of its rotor can be installed one or more at circumferencial direction on demand at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87210386 CN87210386U (en) | 1987-07-25 | 1987-07-25 | Banburying mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87210386 CN87210386U (en) | 1987-07-25 | 1987-07-25 | Banburying mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87210386U true CN87210386U (en) | 1988-10-12 |
Family
ID=4825318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87210386 Withdrawn CN87210386U (en) | 1987-07-25 | 1987-07-25 | Banburying mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87210386U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330474C (en) * | 1998-11-30 | 2007-08-08 | 国际技术公司及国际技术公开有限公司 | Stirrer of mixer for stirring elastomer material |
| CN101633217A (en) * | 2008-07-22 | 2010-01-27 | 张兴和 | Shaft sealing device of kneading chamber of rubber kneading machine |
| US8087814B2 (en) | 2003-03-12 | 2012-01-03 | Kobe Steel, Ltd. | Batch mixer |
| CN102873778A (en) * | 2011-07-12 | 2013-01-16 | 东洋橡胶工业株式会社 | Apparatus for processing rubber and processing method therefor |
| CN102941633A (en) * | 2012-10-11 | 2013-02-27 | 大连橡胶塑料机械股份有限公司 | Engagement rotor of internal mixer |
| CN103862587A (en) * | 2014-04-02 | 2014-06-18 | 诸暨市亿霸龙保温材料有限公司 | Anti-leakage internal mixer |
| CN104139464A (en) * | 2014-07-11 | 2014-11-12 | 徐州工业职业技术学院 | Involute rotor of internal mixer |
| CN104552641A (en) * | 2015-01-07 | 2015-04-29 | 大连德宇机械有限公司 | Closed rubber mixing mill |
| CN112405921A (en) * | 2020-12-15 | 2021-02-26 | 安徽龙行密封件有限公司 | Closed rubber mixing machine |
-
1987
- 1987-07-25 CN CN 87210386 patent/CN87210386U/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330474C (en) * | 1998-11-30 | 2007-08-08 | 国际技术公司及国际技术公开有限公司 | Stirrer of mixer for stirring elastomer material |
| US8087814B2 (en) | 2003-03-12 | 2012-01-03 | Kobe Steel, Ltd. | Batch mixer |
| CN1530209B (en) * | 2003-03-12 | 2013-01-02 | 株式会社神户制钢所 | Closed mixer |
| CN101633217A (en) * | 2008-07-22 | 2010-01-27 | 张兴和 | Shaft sealing device of kneading chamber of rubber kneading machine |
| CN102873778A (en) * | 2011-07-12 | 2013-01-16 | 东洋橡胶工业株式会社 | Apparatus for processing rubber and processing method therefor |
| CN102873778B (en) * | 2011-07-12 | 2015-10-28 | 东洋橡胶工业株式会社 | Device for the treatment of rubber and the processing method for the treatment of rubber |
| US9259856B2 (en) | 2011-07-12 | 2016-02-16 | Toyo Tire & Rubber Co., Ltd. | Methods for controlling the mixing process of processing rubber |
| CN102941633A (en) * | 2012-10-11 | 2013-02-27 | 大连橡胶塑料机械股份有限公司 | Engagement rotor of internal mixer |
| CN103862587A (en) * | 2014-04-02 | 2014-06-18 | 诸暨市亿霸龙保温材料有限公司 | Anti-leakage internal mixer |
| CN104139464A (en) * | 2014-07-11 | 2014-11-12 | 徐州工业职业技术学院 | Involute rotor of internal mixer |
| CN104552641A (en) * | 2015-01-07 | 2015-04-29 | 大连德宇机械有限公司 | Closed rubber mixing mill |
| CN112405921A (en) * | 2020-12-15 | 2021-02-26 | 安徽龙行密封件有限公司 | Closed rubber mixing machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |