CN100344811C - Tow cutter - Google Patents
Tow cutter Download PDFInfo
- Publication number
- CN100344811C CN100344811C CNB200510037762XA CN200510037762A CN100344811C CN 100344811 C CN100344811 C CN 100344811C CN B200510037762X A CNB200510037762X A CN B200510037762XA CN 200510037762 A CN200510037762 A CN 200510037762A CN 100344811 C CN100344811 C CN 100344811C
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- shaft
- cutter
- axle shape
- knife
- shaped knife
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Abstract
The present invention relates to improvement of the structure of a yarn bundle cutter, which belongs to the technical field of chemical fiber machines. The yarn bundle cutter is mainly composed of a tubular housing, an annular knife, a shaft-shaped knife and cylinder assembly, wherein the annular knife is fixed on the front end of the housing, the back end of the shaft-shaped knife is fixedly connected with a shaft of the cylinder, the top circle of the shaft-shaped knife and an inner hole of the annular knife form a slide fit and are arranged in the housing, and the front end of the shaft-shaped knife is provided with a gap. The present invention has the improvement that the cutting edge of the shaft-shaped knife is formed by an inner concave curved surface intersecting the outer cylindrical surface of the shaft-shaped knife, and the inner concave curved surface forms an acute angle with the axis of the shaft-shaped knife. Because the manufacture technology is considered, the inner concave curved surface is suitable for adopting the cylinder or the conical curved surface whose axis forms an acute angle with the axis of the shaft-shaped knife. With the adoption of the structure of the shaft-shaped knife of the present invention, the present invention has the trend of gathering the yarn bundles inwards, namely gathering towards the most sharp point of the cutting edge when the curve of the cutting edge intersects with the annular cutting edge of the annular knife, so the present invention can ensure that the yarn bundles can be cut completely, effectively ensure the quality of fore-spinning processes, and provide convenience for subsequent processes.
Description
Technical field
The present invention relates to a kind of chemical fibre fibre cable cutting device, especially a kind of architecture advances of tow cutter belongs to the chemical fibre equipment technical field.
Background technology
Tow cutter is applied in the fore-spinning of chemical fibre industry usually, and its effect is once to cut off hanging about 5000 fibre bundles that form after the silk.
Existing tow cutter mainly is made up of tubular shell, endless knife, axle shape cutter and cylinder axis.Wherein, endless knife is fixed on the housing front end, and fixedlying connected with cylinder axis in the rear end of axle shape cutter, is slidingly installed in housing.Axle shape cutter shown in Figure 1A and Figure 1B, front end is shaped on breach, the cutting edge of cutter is made of with section friendship elliptic curve that external cylindrical surface forms the inclined-plane with the angled a of axis.In actual application, for a long time, the cut-out rate is difficult to guarantee absolutely, makes troubles to subsequent handling.
Trace it to its cause the unreasonable factor that the cutting edge physical presence of existing tow cutter axle shape cutter is ignored for a long time for people.Because theory analysis can prove: on the one hand, for for the tow of breach, cut to hand over the elliptic curve cutting edge foremost, be that b point among Fig. 1 is the sharpest; And the outside curve cutting edge of b point is far away more from the b point, and sharpness is poor more.On the other hand, cut to hand over the elliptic curve cutting edge foremost when the annular cutting edge with endless knife crosses, only have effective shearing force; And the outside curve cutting edge of b point is far away more from the b point, and when crossing with the annular cutting edge of endless knife, the component that tow is outwards squeezed is big more, and effectively shearing force reduces.Therefore, in the process that axle shape cutter is pushed ahead under cylinder action, cut and hand over the elliptic curve cutting edge in fact to have the trend (referring to Figure 1B) that tow is outwards squeezed, promptly squeezes to the not sharp place of cutting edge, the result causes tow absolutely not cut off, when serious even a small amount of tow can be squeezed in the gap, produce " folder cutter " phenomenon.
Summary of the invention
The present invention wants the technical solution problem to be: at the shortcoming that above prior art exists, improve by the cutting edge structure to axle shape cutter, propose a kind ofly can guarantee effectively that the cut-out rate guarantees hundred-percent tow cutter.
In order to solve above technical problem, tow cutter of the present invention mainly is made up of tubular shell, endless knife, axle shape cutter and cylinder assembly.Wherein, endless knife is fixed on the housing front end, fixedlys connected with cylinder axis in the rear end of axle shape cutter, and axle shape cutter cylindrical and endless knife endoporus are slidingly installed in housing.The front end of axle shape cutter is shaped on breach, and its improvements are: the cutting edge of axle shape cutter forms by cutting to hand over an external cylindrical surface of shape cutter with the acutangulate inner sunken face of axle shape cutter shaft line.Consider anufacturability, this inner sunken face should adopt axis and axle shape acutangulate cylinder of cutter shaft line or conical surface.
After adopting axle shape knife structure of the present invention, when blade curve crosses at the annular cutting edge with endless knife, the trend that existence is inwardly gathered tow, promptly concentrated to the sharpest place of cutting edge, it is hereby ensured that tow absolutely cuts off, effectively guarantee the quality of fore-spinning, for subsequent handling provides convenience.
This shows that the present invention passes through architecture advances simply cleverly, makes blade curve scientific and reasonable, thereby has effectively guaranteed the chopping quality, compared with prior art, has outstanding substantive distinguishing features and marked improvement.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Figure 1A, B are respectively the front view and the vertical view of existing tow cutter axle shape cutter.
Fig. 2 is the structural representation of one embodiment of the invention.
Fig. 3 A, B are the front view and the vertical view of Fig. 2 embodiment axle shape cutter.
The specific embodiment
Embodiment one
The tow cutter of present embodiment as shown in Figure 1, endless knife 2 is fixed with pressure in the shoulder hole of tubular shell 1 front end.Fixedlying connected with cylinder axis 5 by being threaded in the rear end of axle shape cutter 3, is slidingly installed in housing.Spring 7, piston 8, joint 14, the back plug 15 of cylinder axis 5 rear ends for constituting cylinder assembly with it.Remaining parts 6 is a packing ring, and 9 are O shape circle, 10 packing rings, and 11 is nut, and 12 are O shape circle, and 13 is interior jump ring back-up ring, plays sealing respectively, is fastenedly connected effect.In view of the structure of cylinder assembly identical with known technology, so do not describe in detail.
The concrete structure of axle shape cutter 3 as shown in Figure 3, front end is shaped on breach, the cutting edge of axle shape cutter is cut to hand over by the external cylindrical surface with the acutangulate indent conical surface of axle shape cutter shaft line and axle shape cutter and forms.Experiment shows that the acute angle a that axle shape cutter shaft line and crossing indent conical surface bus form is controlled at 74 °-76 °, and the semi-cone angle of conical surface is controlled at 3 °-5 °, and shear effect is more satisfactory.
During the work of the tow cutter of present embodiment, the tow after hanging silk under the compressed air effect, enter the breach of endless knife in the housing after, cylinder axis is under the promotion of steam-cylinder piston, moment is pushed ahead endless knife, and the annular cutting edge of its cutting edge and endless knife is crossed, and tow is cut off.In two edges cross process, the trend (referring to Fig. 3 B) that the indent conic inwardly has tow to gather, promptly concentrates to the sharpest b of the place point of cutting edge, avoided prior art outwards to squeeze the shortcoming of tow fully, conical surface can make the cutting edge of b point both sides produce side edge simultaneously, therefore long-term the use have and the suitable sharpness of b point, even also can keep the cut-out rate still to be a hundred per cent, cut-off part is neatly agile, and effect is remarkable.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (6)
1. tow cutter, mainly form by tubular shell, endless knife, axle shape cutter and cylinder assembly, described endless knife is fixed on the housing front end, fixedlys connected with cylinder axis in the rear end of described axle shape cutter, and described axle shape cutter cylindrical and endless knife endoporus are slidingly installed in housing; The front end of described axle shape cutter is shaped on breach, it is characterized in that: the cutting edge of described axle shape cutter forms by cutting to hand over an external cylindrical surface of shape cutter with the acutangulate inner sunken face of axle shape cutter shaft line.
2. according to the described tow cutter of claim 1, it is characterized in that: described inner sunken face is axis and the acutangulate cylinder curved surface of axle shape cutter shaft line.
3. according to the described tow cutter of claim 1, it is characterized in that: described inner sunken face is axis and the acutangulate conical surface of axle shape cutter shaft line.
4. according to the described tow cutter of claim 2, it is characterized in that: described axle shape cutter shaft line is 74 °-76 ° with the acute angle that intersects interior fluted column bus formation.
5. according to the described tow cutter of claim 3, it is characterized in that: the acute angle that described axle shape cutter shaft line and crossing indent element of cone form is 74 °-76 °.
6. according to the described tow cutter of claim 5, it is characterized in that: the semi-cone angle of described conical surface is 3 °-5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510037762XA CN100344811C (en) | 2005-02-03 | 2005-02-03 | Tow cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510037762XA CN100344811C (en) | 2005-02-03 | 2005-02-03 | Tow cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1657667A CN1657667A (en) | 2005-08-24 |
| CN100344811C true CN100344811C (en) | 2007-10-24 |
Family
ID=35007368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510037762XA Expired - Fee Related CN100344811C (en) | 2005-02-03 | 2005-02-03 | Tow cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100344811C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2664160A (en) * | 1950-07-10 | 1953-12-29 | Ici Ltd | Apparatus for cutting artificial filaments into short lengths |
| GB720233A (en) * | 1950-07-10 | 1954-12-15 | Ici Ltd | Cutting artificial filaments into short lengths |
| CN86107557A (en) * | 1985-10-15 | 1987-07-29 | 伊斯曼柯达公司 | Cut off the device of yarn |
| JPS63126919A (en) * | 1986-11-11 | 1988-05-30 | Teijin Ltd | Yarn cutter |
| CN2122866U (en) * | 1992-04-01 | 1992-11-25 | 石首市第一纺织机械厂 | Fibre cutter |
| CN2254087Y (en) * | 1995-05-09 | 1997-05-14 | 马秋起 | Enclosed cutter chuck holder adapted specially for vertical cut-off machine |
-
2005
- 2005-02-03 CN CNB200510037762XA patent/CN100344811C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2664160A (en) * | 1950-07-10 | 1953-12-29 | Ici Ltd | Apparatus for cutting artificial filaments into short lengths |
| GB720233A (en) * | 1950-07-10 | 1954-12-15 | Ici Ltd | Cutting artificial filaments into short lengths |
| CN86107557A (en) * | 1985-10-15 | 1987-07-29 | 伊斯曼柯达公司 | Cut off the device of yarn |
| JPS63126919A (en) * | 1986-11-11 | 1988-05-30 | Teijin Ltd | Yarn cutter |
| CN2122866U (en) * | 1992-04-01 | 1992-11-25 | 石首市第一纺织机械厂 | Fibre cutter |
| CN2254087Y (en) * | 1995-05-09 | 1997-05-14 | 马秋起 | Enclosed cutter chuck holder adapted specially for vertical cut-off machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1657667A (en) | 2005-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071024 Termination date: 20100203 |