CN102049822B - Cutter device of SBS (Styrene-butadiene thermoplastic elastomer) expansion dryer and manufacturing method thereof - Google Patents
Cutter device of SBS (Styrene-butadiene thermoplastic elastomer) expansion dryer and manufacturing method thereof Download PDFInfo
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- CN102049822B CN102049822B CN 200910236081 CN200910236081A CN102049822B CN 102049822 B CN102049822 B CN 102049822B CN 200910236081 CN200910236081 CN 200910236081 CN 200910236081 A CN200910236081 A CN 200910236081A CN 102049822 B CN102049822 B CN 102049822B
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Abstract
The invention discloses a novel cutter device and a manufacturing method thereof. The cutter device comprises a cutter and a cutter head; the cutter is molded by integrally pressing a rectangular steel plate on a pressing mould and is provided with a base plate and a cutting edge side plate between which a certain included angle is formed; a cutting edge is formed on the cutting edge side plate; the cutter head includes an inner cutter head and an outer cutter head which are fixed together; and the cutter is fixedly connected with the cutter head to form the cutter device. The cutter provided by the invention is simple to machine and manufacture and has low cost. By adopting the novel cutter device, the service life of the cutter of an expansion dryer is prolonged, the particle-cutting effect is obviously improved, the vibration of the device and the weights of the cutter and the cutter head are reduced, and it is convenient for overhaul and maintenance.
Description
Technical field
The present invention relates to a kind of cutter and manufacture method thereof that comprises cutting knife, cutterhead, be specifically related to its manufacture method of cutter of SBS expansion-exsiccation machine in a kind of synthetic rubber field.
Background technology
In the synthetic rubber production technology, the micelle after cohesion, through the dehydration of extruding-desiccation machine, has dropped to below certain limit the content of its free water, after this enters expansion-exsiccation machine.Material in expansion-exsiccation machine through the extruding of screw rod and and the violent friction of shear pin, the intensification melting, expansion drying, finally be extruded machine outside and be cut into granular by the cutter of setting outside it at the template place.
Yet in the prior art, in order to improve production capacity, SBS (butylbenzene thermoplastic elastomer) device is repeatedly transformed, and the especially application of the transformation of SBS dewatering squeezer and Fourdrinier type drying machine, improved the drying capacity of post processing greatly.But, along with the raising of production capacity, the problems such as vibration is large, the pelletizing effect is unstable, easily fracture have appearred in the long cutting knife of expansion-exsiccation machine in the course of the work.Often need shut-down (breakdown) mainteance, have a strong impact on normal production, and, due to the requirement of the technological process of production, all will produce some transition wasters at every turn when resuming production, have influence on output and the product percent of pass of SBS, also strengthened the maintenance load of pincers worker simultaneously.According to the statistics of in January, 2007 to September to cutter maintenance situation, show that the fracture frequency damaged of long cutting knife is quite high, change cutting knife 80 times, changing quantity is 253;
1, slitter shaft, cutting knife carrier wear or bearing damage, overhaul 11 times altogether;
2, other faults of cutter, overhaul 3 times altogether;
3, the cutter repair time shares 144 hours.
By analyzing, the main cause that cutting knife fractures has following 3 points:
1, cutting clearance is adjusted difficulty;
2, cutter structure complexity, machining accuracy is difficult to ensure card;
3, cutting knife blade Root Stress is concentrated, easily broken.
In prior art, list of references 1 (CN1085486A) discloses a kind of rotary grain-cutter and manufacture method thereof, and specifically disclose and a kind ofly on the stainless steel cutter blank face of cylinder, mill out the profile of tooth base portion, then built-up welding Co-Cr-W carbide alloy becomes knife-edge, finally grinds out the blade of requirement size.This cutting knife is different from structure of the present invention, and manufacture method is too complicated; List of references 2 (CN1170660A) discloses cutting knife commonly used in a kind of prior art, and the blade that the main body that this cutting knife is formed from steel and ceramal are made integrally combines and forms.List of references 3 (CN1789460A), the disclosed cutter structure of list of references 4 (CN1789462A) and list of references 2 are similar, just from cutting edge material, it are improved.Visible, be not disclosed as in prior art and solve the problems of the technologies described above and take related art scheme.
Summary of the invention
In view of above-mentioned technical problem, the purpose of this invention is to provide a kind of cutter and manufacture method thereof, the cutter produced by this manufacture method can obviously reduce the cutting vibration in the course of work and the number of times that fractures, thereby can significantly improve the continuous operating time of expansion-exsiccation machine.
The present invention takes following technical scheme: a kind of cutter, comprise cutting knife and cutterhead, and it is characterized in that, cutting knife, by the punch forming of rectangular bar of steel slab integral, has blade side plate and substrate, on the blade side plate, has blade.
Described cutterhead is divided into inner disc part and outer disc portion, and inner disc coordinates with driving shaft, between outer disk and inner disc, is fixedly connected with; Described cutting knife is fixed on cutterhead; Above-mentioned fixing mode can be that bolt connects and other can be used to be fixedly connected with all modes of two parts; But preferred bolt connects, and is conducive to like this reduce the vibration of machine.Described steel plate adopts corrosion resistant plate, is preferably the 1Gr13 corrosion resistant plate; The size of steel plate can be carried out choose reasonable according to the size of drying machine and the parameters such as size of required rubber grain, and preferably its thickness is 5mm, and length is 405mm, and blade side plate and the substrate of described cutting knife preferably have identical width, are preferably 25mm.Above-mentioned parameter those skilled in the art can and go out a mode according to the model of drying machine and select suitable size.
Whole compressing cutting knife substrate and blade side plate form side by side on the width of rectangle steel plate, and substrate is formed on a side of rectangle steel plate width, and the blade side plate is formed on the opposite side of rectangle steel plate width.Described substrate has identical length and width with the blade side plate.
In addition, cutting knife in conventional art is stressed directly is delivered to blade and position that the cutting knife root is combined by blade, because blade part forms by processing and manufacturing, can there is the weak zone of an intensity at this binding site, long-term pelletizing adds trade union and causes fatigue stress at this position, when bearing larger resistance, will cause fractureing of cutter.Have certain angle between the blade side plate of cutting knife of the present invention and substrate, the setting by this angle, solved the above-mentioned problems in the prior art.Through test of many times, the applicant finds that the size of angle is directly involved in the stressed of cutting knife, angle is crossed conference and is caused the main cutting force of blade side bearing, thereby make the blade side plate easily fracture, angle is too small can directly affect cutting effect again, the applicant, through long-term experiment, preferably determines the angle with about 135 °;
Further, fixing for cutting knife and cutterhead offers screw on the substrate of cutting knife root, and the number of screw and spacing can determine according to cutting knife length and cutter diameter, and cutting knife root of the present invention has two screws.
Cutterhead of the prior art is improved to inner disc and outer disk composition, adopts fixing being fixedly connected with of similar bolt between inner disc and outer disk, thereby further avoid the vibration of drying machine body.
In addition, a kind of manufacture method of above-mentioned cutter also is provided, comprising: the step of manufacturing a cutting knife: provide a rectangle corrosion resistant plate and to there is the compacting tool set of certain angle, described stainless steel plate integral is pressed into to cutting knife base substrate (1) and blade side plate (2) with a substrate (1) and blade side plate (2) and forms an angle (a), the angle complementation of described angle and compacting tool set, then adopt milling cutter to go out blade (3) in the outside of blade side plate Milling Process, thereby form described cutting knife; Manufacture the step of a cutterhead: a cutterhead inner disc and a cutterhead outer disk are provided, and described inner disc is used for coordinating with driving the axle that cutterhead rotates, and between described outer disk and inner disc, is fixedly connected with; And by the step of a plurality of cutting knifes and cutterhead assembling.
Compared with prior art, after cutter of the present invention is transformed enforcement by above-mentioned measure, expansion-exsiccation machine moves very steady so far, relatively old cutting knife, and the workload of maintenance and maintenance greatly reduces, and after transformation, Expected Results is very obvious.The cutting knife number of times that fractures significantly reduces, and moves very steadily, and the transformation of cutting knife has not only extended the continuous operating time of expansion-exsiccation machine greatly, and the pelletizing effect of cutting knife also improves significantly simultaneously, and the vibration of the drying machine body that the cutting knife operation causes also obviously reduces.Due to above-mentioned cutting knife and cutter head structure, the processing and manufacturing of cutter is very simple, convenient, greatly reduces spare parts cost.Cutting knife is compressing by steel plate integral body, make the cutting knife interior tissue even, improved the intensity of cutting knife, the setting of 135 ° of angles between the blade side plate of cutting knife and substrate, make stressed can be good at of cutting knife be delivered to substrate from the blade side, not there will be the problem that in similar prior art, blade is easy to fracture; And be directly delivered to drying machine by making cutterhead form by two parts the operational vibration that can effectively avoid cutting knife, thereby reduced the vibration of drying machine body.In addition, structure of the present invention makes be extended the service life of cutting knife, the pelletizing effect has also obtained obvious improvement, and can reduce the weight of cutting knife and cutterhead, convenient maintenance and maintenance, reduced workman's workload, because the cutter split is manufactured, processing and manufacturing is also more simple, with low cost.
The accompanying drawing explanation
1. the structure chart that Fig. 1 is cutting knife in background technology;
2. the cutter structure figure that Fig. 2 a is the embodiment of the present invention;
3. the A-A of the cutting knife that Fig. 2 b is the embodiment of the present invention is to view;
4. the side view that Fig. 3 a is cutting knife cutterhead of the present invention;
5. the front view that Fig. 3 b is cutting knife cutterhead of the present invention;
6. the assembling pictorial diagram that Fig. 4 is cutting knife and cutterhead.
The specific embodiment
Cutting knife of the present invention adopts the thick stainless steel materials of 5mm, the concrete 1Gr13 stainless steel materials of selecting, through machining, become as the rectangle steel plate, then adopt conventional method to make the compacting tool set of 45 degree, to this rectangular bar of steel slab integral punch forming, mill out blade by milling machine, certainly, the moulding of blade also can adopt other common modes.Finally on the substrate 1 of cutting knife one side, machined forms the fixed-use bolt hole.Its number can rationally be determined as required.The cutting knife of formation as shown in Fig. 2 a, Fig. 2 b.
As can be seen from the figure, the compressing cutting knife of one consists of substrate 1 and blade side plate 2, blade 3 is formed on the outside of blade side plate 2, substrate 1 and blade side plate 2 have identical length and width, form the angle of 135 ° between the two, the bolt hole that is used for being combined with cutterhead is formed on substrate 1, there are 2 bolts hole that be arranged in parallel 4, between 2 bolts hole, spacing is 63mm, diameter of bolt hole is 13mm, bolt hole center is 15mm apart from the outer lateral extent of substrate 1, and the centre distance cutting knife root of inboard bolt hole distance is 15mm.
From Fig. 3 a, 3b, can find out, cutter disc of the present invention is divided into two parts, as that part of inner disc 5, with the axle that drives its running, coordinates, and its fit system can be the key connection; As between another part of outer disk 6 and inner disc 5, with bolt, be connected; The cutting knife outer disk offers many group screwed holes in radial direction, and every group of screwed hole coordinates with a cutting knife.The number of every group of screwed hole is corresponding with the number of cutting knife upper screwed hole.
Fig. 4 is the structure chart that cutting knife of the present invention and cutter disc groups install.
Claims (2)
1. the manufacture method of a cutter,
Wherein, described cutter, comprise cutting knife and cutterhead, and cutting knife is compressing by rectangular bar of steel slab integral, and described cutting knife has substrate (1) and blade side plate (2), forms certain angle between substrate (1) and blade side plate (2);
Wherein, described cutterhead is divided into inner disc (5) and outer disk (6) two parts;
Wherein, described inner disc (5) coordinates with axle, between inner disc (5) and outer disk (6), is fixedly connected with;
Wherein, described substrate (1) and blade side plate (2) are set up in parallel on the width of rectangle steel plate;
Wherein, between described cutting knife and cutterhead, be fixedly connected with;
Wherein, between described substrate (1) and blade side plate (2), angle is 135 °; Both have identical length and width, and described width is 25mm, and described length is 405mm;
Wherein, described steel plate is the 1Gr13 stainless steel materials;
It is characterized in that, comprising:
Manufacture the step of a cutting knife: provide a rectangle corrosion resistant plate and to there is the compacting tool set of certain angle, described stainless steel plate integral is pressed into to the cutting knife base with a substrate (1) and blade side plate (2), substrate (1) and blade side plate (2) form the angle (a) of one 135 degree, the angle complementation of described angle and compacting tool set, then adopt milling cutter to go out blade (3) in the outside of blade side plate Milling Process, thereby form described cutting knife;
Manufacture the step of a cutterhead: a cutterhead inner disc and a cutterhead outer disk are provided, and described inner disc is used for coordinating with driving the axle that cutterhead rotates, and between described outer disk and inner disc, is fixedly connected with;
And by the step of a plurality of cutting knifes and cutterhead assembling.
2. the manufacture method of cutter as claimed in claim 1, the described bolt that is fixedly connected as connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910236081 CN102049822B (en) | 2009-10-27 | 2009-10-27 | Cutter device of SBS (Styrene-butadiene thermoplastic elastomer) expansion dryer and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910236081 CN102049822B (en) | 2009-10-27 | 2009-10-27 | Cutter device of SBS (Styrene-butadiene thermoplastic elastomer) expansion dryer and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102049822A CN102049822A (en) | 2011-05-11 |
| CN102049822B true CN102049822B (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910236081 Active CN102049822B (en) | 2009-10-27 | 2009-10-27 | Cutter device of SBS (Styrene-butadiene thermoplastic elastomer) expansion dryer and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN102049822B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2860772Y (en) * | 2005-07-19 | 2007-01-24 | 沈阳金锋特种刀具有限公司 | Follow-up cutter head for granule-cutting |
| CN201231170Y (en) * | 2008-04-12 | 2009-05-06 | 梁超 | Rubber and plastic coarse breaker cutter head |
-
2009
- 2009-10-27 CN CN 200910236081 patent/CN102049822B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2860772Y (en) * | 2005-07-19 | 2007-01-24 | 沈阳金锋特种刀具有限公司 | Follow-up cutter head for granule-cutting |
| CN201231170Y (en) * | 2008-04-12 | 2009-05-06 | 梁超 | Rubber and plastic coarse breaker cutter head |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2000-176932A 2000.06.27 |
| JP特开平10-151622A 1998.06.09 |
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| CN102049822A (en) | 2011-05-11 |
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