CN117535835A - Curved roller drafting mechanism - Google Patents
Curved roller drafting mechanism Download PDFInfo
- Publication number
- CN117535835A CN117535835A CN202311564887.2A CN202311564887A CN117535835A CN 117535835 A CN117535835 A CN 117535835A CN 202311564887 A CN202311564887 A CN 202311564887A CN 117535835 A CN117535835 A CN 117535835A
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- roller
- gradual change
- leather
- roller body
- notch
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- 230000007246 mechanism Effects 0.000 title claims abstract description 31
- 239000010985 leather Substances 0.000 claims abstract description 156
- 230000008859 change Effects 0.000 claims abstract description 112
- 230000007704 transition Effects 0.000 claims description 22
- 239000000835 fiber Substances 0.000 abstract description 77
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 13
- 230000001154 acute effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000009987 spinning Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000009960 carding Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/74—Rollers or roller bearings
- D01H5/78—Rollers or roller bearings with flutes or other integral surface characteristics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention discloses a curved roller drafting mechanism, wherein a gradual change structure is arranged in the drafting mechanism along the axial direction of a roller or a leather roller; if the roller body or the roller body is axially provided with a gradual change notch, the gradual change notch is positioned in the middle area of the roller body or the roller body. The invention completes the collocation of the drafting roller and the leather roller by arranging the leather roller or the roller surface form into a gradual change concave state gap from thick to thin or gradual change convex form from thin to thick along the axial direction from two sides to the middle point of the roller or the leather roller or by combining the roller and the leather roller and different types of forms of the roller or the leather roller with common constant diameter. The transverse friction force boundary of the drafting zone is optimized, so that the fiber clusters at the edge positions of the fiber strands obtain more pressure from the roller and the leather roller, more friction force is generated, and the fiber movement can be more effectively controlled, thereby improving the uniformity of the fiber strands after drafting, reducing the evenness of the output fiber strands and improving the drafting effect.
Description
Technical Field
The invention relates to the field of spinning, in particular to a curved roller drafting mechanism.
Background
In the spinning field, a coarse sliver or fiber sliver is drawn using a drawing mechanism. The drafting mechanism comprises a leather roller and a roller, and coarse fiber strips or fiber strips are conveyed forwards through a jaw between the leather roller and the roller under traction of friction force. In the conveying process, coarse fiber strips or fiber strips are drawn by adjusting the rotation speed ratio of the upper leather roller and the roller of the adjacent drawing mechanism.
When the conventional leather roller and the conventional roller are in a cylindrical structure and are matched for traction and conveying, friction force boundaries suffered by the fiber bundles or the fiber bundles are unevenly distributed, and particularly, the distribution difference of transverse friction force boundaries is large, so that boundary fiber bundles or fiber bundles are not effectively controlled, and further, the fiber bundles or the fiber bundles are unevenly drawn. Moreover, the existing leather roller and roller structure cannot achieve a good drafting effect on fibers with different lengths in blending.
Disclosure of Invention
Based on the technical problems, the invention provides a curved roller drafting mechanism, which has a gradual change structure arranged in the axial direction of a leather roller and/or a roller so as to effectively control the stress and movement of the fiber at the edge of a sliver and achieve a better drafting effect.
The technical scheme adopted by the invention is as follows:
a curved roller drafting mechanism comprises a leather roller and a roller, wherein a gradual change structure is arranged in the axial direction of the leather roller and/or the roller.
Preferably, the leather roller comprises a leather roller body, the roller comprises a roller body, and the leather roller body and the roller body are both cylindrical; the leather roller body or the roller body is axially provided with a gradual change notch.
Preferably, the gradual change notch is positioned in the middle area of the leather roller body or the roller body.
Preferably, the leather roller body or the roller body is correspondingly provided with a section body with a gradual change notch, and the external diameter of the section body gradually changes from one end to the other end.
Preferably, the leather roller body is cylindrical, and a gradual change notch is arranged in the middle area of the roller body; or the roller body is cylindrical, and a gradual change notch is arranged in the middle area of the leather roller body.
Preferably, the cross section of the gradual change type notch is arc-shaped, conical or trapezoidal.
Preferably, the middle area of the leather roller body is provided with a gradual change notch, and the middle area of the roller body is provided with a gradual change bulge which is matched with the gradual change notch; or the middle area of the leather roller body is provided with a gradual change bulge, and the middle area of the roller body is provided with a gradual change notch which is matched with the roller body.
Preferably, the curvature of the gradual change notch and the gradual change protrusion is different.
Preferably, the gradual change type notches are symmetrically distributed along the vertical section of the center of the leather roller body or the roller body.
Preferably, a gradual change type notch is arranged in the middle area of the roller body, and transition bosses are arranged at two ends of the gradual change type notch; the middle area of the leather roller body is provided with gradual change type bulges, and transition notches are arranged at two ends of the gradual change type bulges;
the gradual change type notch is matched with the gradual change type bulge, the transition boss is matched with the transition notch, the gradual change type notch is different from the gradual change type bulge in curvature, and the transition notch is different from the transition boss in curvature.
The beneficial technical effects of the invention are as follows:
the invention provides a transverse sliding space for the fiber bundle or the fiber bundle by arranging the gradual change notch in the center of the leather roller or the roller, so that the fiber bundle or the fiber bundle to be drawn can be controlled as much as possible, thereby improving the uniformity of the drawing length of the fiber bundle or the fiber bundle, namely reducing the uneven evenness of the output fiber bundle or the fiber bundle and improving the drawing effect.
More specifically, the invention discloses a drafting mechanism with a gradual change shape of the section along the axial direction of a roller and a leather roller, wherein a gradual change shape notch is arranged on the middle area of the leather roller body or the roller body along the axial direction of the roller or the leather roller. The cross section of the gradual change shape notch along the axial direction of the roller or the leather roller is in a symmetrical (or asymmetrical) arc shape or a symmetrical (or asymmetrical) cone shape. The invention completes the collocation of the drafting roller and the leather roller by arranging the leather roller or the roller surface form into a gradual change concave state gap from thick to thin or gradual change convex form from thin to thick along the axial direction from two sides to the middle point of the roller or the leather roller or by combining the roller and the leather roller and different types of forms of the roller or the leather roller with common constant diameter. The transverse friction force boundary of the drafting zone is optimized, so that the fiber clusters at the edge positions of the fiber strands obtain more pressure from the roller and the leather roller, more friction force is generated, the fiber movement can be more effectively controlled, the uniformity of the fiber strands after drafting is improved, namely the evenness of the output fiber strands is reduced, and the drafting effect is improved. In addition, a friction force boundary different from that of the roller with a constant diameter is provided for the different length fibers in the blending process, so that the movement of the different length fibers drawn by the drawing mechanism has another possibility of variable speed result.
Drawings
The invention is further described with reference to the drawings and detailed description which follow:
FIG. 1 is a schematic diagram of the structural principle of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of a second embodiment of the present invention;
FIG. 3 is a schematic view of the third embodiment of the present invention;
FIG. 4 is a schematic diagram of the structure of a fourth embodiment of the present invention;
FIG. 5 is a schematic view of the construction principle of a fifth embodiment of the present invention;
FIG. 6 is a schematic diagram of the structure of a sixth embodiment of the present invention;
FIG. 7 is a schematic view of the structure of a first embodiment of a leather roller or roller according to the present invention;
FIG. 8 is a schematic view of a second embodiment of a leather roller or roller according to the present invention;
FIG. 9 is a schematic view of a third embodiment of a leather roller or roller according to the present invention;
FIG. 10 is a schematic view of a fourth embodiment of a leather roller or roller according to the present invention;
FIG. 11 is a schematic view of a fifth embodiment of a leather roller or roller according to the present invention;
FIG. 12 is a schematic view of a sixth embodiment of a leather roller or roller according to the present invention;
FIG. 13 is a schematic view of a seventh embodiment of a leather roller or roller according to the present invention;
FIG. 14 is a schematic view showing the structure of an eighth embodiment of a leather roller or roller according to the present invention;
FIG. 15 is a schematic view of a ninth embodiment of a leather roller or roller according to the present invention;
FIG. 16 is a schematic view of a tenth embodiment of a leather roller or roller according to the present invention;
fig. 17 is a simplified schematic diagram of an eleventh embodiment of a leather roller or roller in accordance with the invention.
In the figure: the roller comprises a 1-leather roller body, a 2-roller body, a 3-gradual change notch, a 4-gradual change bulge, a 301-transition boss and a 401-transition notch.
Detailed Description
The invention provides a curved roller drafting mechanism, the section of which along the axial direction of a roller and a leather roller is in a gradual change form. The drafting mechanism comprises a leather roller and a roller, wherein the leather roller comprises a leather roller body 1, the roller comprises a roller body 2, and the basic forms of the leather roller body 1 and the roller body 2 are cylindrical. Along the axial direction of the roller or the leather roller, a gradual change notch 3, namely a gradual change notch, is arranged in the shape of the middle area of the leather roller body 1 or the roller body 2. Specifically, the leather roller body 1 is cylindrical, and a gradual change notch 3 is arranged in the middle area of the roller body 2. Or the roller body 2 is in a cylinder shape, and a gradual change notch 3 is arranged in the middle area of the leather roller body 1. The cross section of the gradual change shape notch along the axial direction of the roller or the leather roller is in a symmetrical (or asymmetrical) arc shape or a symmetrical (or asymmetrical) cone shape. Of course, other curved shapes may be used.
As a further design of the invention, the middle area of the leather roller body 1 is provided with a gradual change notch 3, and the middle area of the roller body 2 is provided with an adaptive gradual change bulge 4. Or the middle area of the leather roller body 1 is provided with a gradual change type bulge 4, and the middle area of the roller body 2 is provided with a gradual change type notch 3. And controls the curvatures of the gradual change notch 3 and gradual change protrusion 4 to be different. More preferably, the gradual change type bulge 4 is placed in the gradual change type notch 3, and the formed gap has a structure with wide middle and narrow two sides.
The invention provides a transverse sliding space for the fiber bundle or the fiber bundle by arranging the gradual change notch in the center of the leather roller or the roller, so that the fiber bundle or the fiber bundle to be drawn can be controlled as much as possible, thereby improving the uniformity of the drawing length of the fiber bundle or the fiber bundle, namely reducing the uneven evenness of the output fiber bundle or the fiber bundle and improving the drawing effect.
The invention completes the collocation of the drafting roller and the leather roller by arranging the leather roller or the roller surface form into a gradual change concave state gap from thick to thin or gradual change convex form from thin to thick along the axial direction from two sides to the middle point of the roller or the leather roller or by combining the roller and the leather roller and different types of forms of the roller or the leather roller with common constant diameter. The transverse friction force boundary of the drafting zone is optimized, so that the fiber clusters at the edge positions of the fiber strands obtain more pressure from the roller and the leather roller, more friction force is generated, the fiber movement can be more effectively controlled, the uniformity of the fiber strands after drafting is improved, namely the evenness of the output fiber strands is reduced, and the drafting effect is improved. In addition, a friction force boundary different from that of the roller with a constant diameter is provided for the different length fibers in the blending process, so that the movement of the different fibers drawn by the drawing mechanism has another possibility of variable speed result.
The invention is further illustrated by the following examples.
Example 1
As shown in fig. 1, a curved roller drafting mechanism comprises a leather roller and a roller, wherein the leather roller is made of rubber materials, and the roller is made of steel materials. The leather roller comprises a leather roller body 1, the roller comprises a roller body 2, and the leather roller body 1 and the roller body 2 are both cylindrical. A gradual change notch 3 is arranged in the middle area of the leather roller body 1, and the cross section of the gradual change notch 3 is conical.
Example 2
As shown in fig. 2, a curved roller drafting mechanism comprises a leather roller and a roller, wherein the leather roller is made of rubber materials, and the roller is made of steel materials. The leather roller comprises a leather roller body 1, the roller comprises a roller body 2, and the leather roller body 1 and the roller body 2 are both cylindrical. The middle area of the leather roller body 1 is provided with a gradual change notch 3, and the cross section of the gradual change notch 3 is arc-shaped.
Example 3
As shown in fig. 3, a curved roller drafting mechanism comprises a leather roller and a roller. The leather roller comprises a leather roller body 1, the roller comprises a roller body 2, and the leather roller body 1 and the roller body 2 are both cylindrical. The middle area of the roller body 2 is provided with a gradual change notch 3, and the cross section of the gradual change notch 3 is arc-shaped.
Example 4
As shown in fig. 4, a curved roller drafting mechanism includes a leather roller and a roller. The leather roller comprises a leather roller body 1, the roller comprises a roller body 2, and the leather roller body 1 and the roller body 2 are both cylindrical. The middle area of the leather roller body 1 is provided with a gradual change notch 3, and the middle area of the roller body 2 is provided with a gradual change bulge 4 which is matched with the roller body. The cross sections of the gradual change type notch 3 and the gradual change type bulge 4 are arc-shaped. And the curvature of the gradual change notch 3 and the gradual change protrusion 4 are different.
Example 5
As shown in fig. 5, a curved roller drafting mechanism includes a leather roller and a roller. The leather roller comprises a leather roller body 1, the roller comprises a roller body 2, and the leather roller body 1 and the roller body 2 are both cylindrical. The middle area of the roller body 2 is provided with a gradual change notch 3, and the middle area of the leather roller body 1 is provided with a gradual change bulge 4 which is matched with the roller body. The cross sections of the gradual change type notch 3 and the gradual change type bulge 4 are arc-shaped. And the curvature of the gradual change notch 3 and the gradual change protrusion 4 are different.
Example 6
As shown in fig. 6, a curved roller drafting mechanism includes a leather roller and a roller. The leather roller comprises a leather roller body 1, the roller comprises a roller body 2, and the leather roller body 1 and the roller body 2 are both cylindrical. The middle area of the roller body 2 is provided with a gradual change notch 3, and transition bosses 301 are arranged at two ends of the gradual change notch 3. The middle area of the leather roller body 1 is provided with gradual change type bulges 4, and transition notches 401 are arranged at two ends of the gradual change type bulges 4. The gradual change notch 3 is matched with the gradual change bulge 4, and the cross sections of the gradual change notch and the gradual change bulge are arc-shaped. The transition boss 301 and the transition recess 401 are matched, and the cross sections of the transition boss and the transition recess are arc-shaped. When the leather roller and the roller are matched, the gradual change type bulge 4 is embedded in the gradual change type notch 3, and the transition boss 301 is embedded in the transition notch 401. And the curvature of the gradual change notch 3 is different from that of the gradual change bulge 4, and the curvature of the transition notch 401 is different from that of the transition boss 301.
Further, the present invention is described and extended in more detail on the basis of the above embodiments.
The gradual change notch or curved surface in the invention can be designed and implemented into various curvatures corresponding to rollers or leather rollers at different working positions in different working procedures (including but not limited to procedures of blowing, carding, combing, drawing, roving, spinning and spooling, and the like) so as to adapt to fiber clusters, yarns or threads and the like which are processed (including but not limited to drafting, conveying, and the like) with different quantitative or special numbers.
Of course, if the partial segment of the gradual change notch is an inclined plane, the inclined plane may be designed and implemented as a roller or a leather roller with different slopes (different from the included angle between the roller or the leather roller rotating shaft) corresponding to different working positions in different working procedures (including but not limited to the procedures of blowing, carding, combing, drawing, roving, spinning, spooling and the like) so as to adapt to fiber clusters, yarns or threads and the like processed (including but not limited to drafting, conveying and the like) with different quantitative or special numbers.
The size between the diameter of the roller or the leather roller in contact with the fiber and the diameter of the roller or the leather roller not in contact with the fiber can be designed into different sizes, and corresponds to the roller or the leather roller at different working positions in different working procedures (including but not limited to the procedures of blowing, carding, combing, drawing, roving, spun yarn, winding and the like) so as to adapt to fiber clusters, yarns or threads and the like processed (including but not limited to drawing, conveying and the like) with different quantitative or special numbers.
From the aspect of solving the technical problems, one of the defects of the existing roller and leather roller is that: the fiber cluster is clamped by a roller and a leather roller with unchanged diameter at the far end (outer side) which is farthest from the axis position along the advancing direction of the fiber cluster in the direction perpendicular to the advancing direction of the fiber cluster in the process of being pressurized and drawn or conveyed, and the expression of the transverse friction force boundary is that the pressurizing force born by the outer side fiber cluster is smaller than the pressurizing force born by the middle fiber, namely the strength of the friction force boundary of the fibers at the outer sides of the two ends is lower than the friction force boundary strength of the middle position, and the control force of the fibers at the two sides of the fiber cluster is lower than that of the fiber cluster at the middle position in the process of drawing or advancing the fiber cluster.
The invention adopts the diameter-variable roller and leather roller structure, the fiber cluster at the far end (outer side) which is farthest from the axis position along the advancing direction of the fiber cluster is clamped by the diameter-variable roller and leather roller in the direction perpendicular to the advancing direction of the fiber cluster in the pressurizing and drafting or conveying process, the transverse friction force boundary expression is that the pressurizing force born by the outer side fiber cluster is smaller than the pressure born by the middle fiber, the distance (or gap) between the rollers or leather rollers at the outer side is changed due to the reduction of the distance (or gap) between the rollers or leather rollers at the outer side, the pressure difference between the middle position and the two side positions is reduced, namely the strength of the friction force boundary of the fibers at the outer sides of the two sides is lower than that of the middle position, and the control force of the fibers at the two sides is not as good as the fiber cluster at the middle position in the drafting or the advancing process of the fiber cluster.
From the aspect of the technical problem to be solved, the second disadvantage of the existing roller and leather roller is: after a period of use, the constant diameter rollers and the leather rollers may be notched or pitted at the location of the leather roller or apron in contact with the fiber tufts. To ensure spinning quality and to ensure the strength of the friction force boundary of the drafting zone, the fibres are effectively controlled in the drafting zone, and it is generally necessary to grind the leather roller or change the leather collar periodically.
The invention adopts the structure of the diameter-variable roller and the leather roller, and after the roller and the leather roller with the diameter being changed along the rotation axial direction are used for a period of time, the pressure born by the fiber cluster at the middle part is relatively reduced due to the increase of the pressure born by the fiber cluster at the edge, the pressure born by the fiber cluster is distributed more evenly in the direction (transverse direction) perpendicular to the integral movement or advancing direction of the fiber cluster, and the wear distribution of the leather roller or leather ring designed or implemented by the invention is also more even under the condition of the pressure of the roller or leather roller with the same drawing structure as the roller or leather roller with the unchanged diameter. The maximum wear depth is reduced somewhat under otherwise unchanged conditions as well.
The present invention will be described below with reference to the drawings by taking a roller or a leather roller alone as an example.
Diameter-variable rollers or leather rollers, the shape of which varies in diameter along the direction of their axis of rotation, include, but are not limited to, the following:
first, as shown in fig. 7, "flat-forward-reverse-flat" means that the surface of the roller or the leather roller is parallel to the rotating shaft thereof, "forward-inclined" and "reverse-inclined" means that the inclined line section of the surface of the roller or the leather roller forms an acute angle or an obtuse angle with the rotating shaft thereof, the magnitude of the acute angle or the obtuse angle can be equal or unequal, the width of the part of the roller or the leather roller with the diameter changed along the axial direction and the depth changed along the radial direction can be changed.
As shown in fig. 8, "flat-positive arc-negative arc-flat" means that the surface of the roller or the leather roller is parallel to the rotation axis thereof, "positive arc" and "negative arc" means that the arc of the surface of the roller or the leather roller forms an acute angle direction or an obtuse angle direction with the rotation axis thereof, the magnitude of the acute angle direction or the obtuse angle direction can be equal or unequal, the magnitude of the acute angle or the obtuse angle in the direction corresponding to the arc can be equal or unequal, the width of the part of the roller or the leather roller with the diameter changed in the radial direction along the axial direction is variable, and the depth changed in the radial direction is variable.
Third, as shown in fig. 9, "flat-forward-reverse-flat", "flat" means that the surface of the roller or the leather roller is parallel to the rotation axis thereof, "forward-inclined" and "reverse-inclined" means that the surface of the roller or the leather roller is in an acute angle direction or an obtuse angle direction with respect to the rotation axis thereof, the magnitudes of the acute angle direction or the obtuse angle direction may be equal or unequal, the magnitudes of the acute angle direction or the obtuse angle direction corresponding to the oblique line may be equal or unequal, the width of the portion of the roller or the leather roller with the diameter varying radially in the axial direction, and the depth varying radially are variable.
Fourth, as shown in FIG. 10, a 'flat-positive arc-flat-negative arc-flat' structure is adopted; the specific explanation is as above.
Fifthly, as shown in fig. 11, "flat-forward-oblique-reverse-arc-flat"; the specific explanation is as above. Of course, it can also take the form of "flat-positive arc-reverse slope-flat".
Sixth, as shown in fig. 12, "flat-forward arc-flat-reverse slope-flat"; the specific explanation is as above. Of course, the structure of 'flat-healthy qi-flat-reverse arc-flat' can also be adopted.
Seventh, as shown in fig. 13, a structure form of 'flat-forward-reverse-flat' is adopted, namely, the same roller or leather roller is provided with two sections of grooves along the axial direction; the specific explanation is as above. Of course, it can also take the form of "flat-forward arc-reverse arc-flat", or the form of "flat-forward oblique-reverse arc-flat".
Eighth, as shown in fig. 14, "flat-forward-oblique-flat-reverse-flat-forward-flat-reverse-flat", the same roller or leather roller is in the form of two grooves along the axial direction; the specific explanation is as above. Of course, it can also take the form of "flat-positive arc-flat-reverse arc-flat".
Nine, as shown in fig. 15, "flat-forward-reverse-flat", i.e. the same roller or leather roller is in the form of three grooves along the axial direction. Of course, the structure of "flat-forward arc-reverse arc-flat" can also be adopted.
Ten, as shown in fig. 16, "flat-forward-inclined-flat-reverse-inclined-flat", i.e. the same roller or leather roller is in the form of three grooves along the axial direction. Of course, it can also take the structural form of 'flat-positive arc-flat-reverse arc-flat'.
Eleven, the structure is similar to the structure, and the like, and the same roller or leather roller is in the form of four grooves along the axial direction.
Twelve, similar to the structure, and so on, the radial diameter of the roller or the leather roller is changed in various forms, and the change rule of the diameter groove is followed, and the simple schematic diagram is shown in figure 17.
That is, when the roller adopts the concave structure, the leather roller can adopt a flat cylinder structure, and also can adopt a convex structure matched with the concave structure of the roller, and the convex amplitude and the concave amplitude slightly change. Of course, the leather roller can also adopt a structure similar to the concave structure, and the concave depth is slightly smaller. Correspondingly, if the peel roller adopts the concave structure, the roller can adopt a flat cylinder structure, and also can adopt a convex structure matched with the concave structure of the peel roller, and the convex amplitude and the concave amplitude slightly change. Of course, the roller can also adopt a structure similar to the concave structure, and the concave depth is slightly smaller. And so on to match up and down.
The parts not described in the above modes can be realized by adopting or referring to the prior art.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a curved surface roller draft mechanism, includes leather roller and roller, its characterized in that: the roller and/or the roller is/are provided with a gradual change structure in the axial direction.
2. The curved roller drafting mechanism as claimed in claim 1, wherein: the leather roller comprises a leather roller body, wherein the roller comprises a roller body, and the leather roller body and the roller body are both cylindrical; the leather roller body or the roller body is axially provided with a gradual change notch.
3. The curved roller drafting mechanism as claimed in claim 2, wherein: the gradual change notch is positioned in the middle area of the leather roller body or the roller body.
4. The curved roller drafting mechanism as claimed in claim 2, wherein: the leather roller body or the roller body is correspondingly provided with a section body with a gradual change notch, and the external diameter of the section body gradually changes from one end to the other end.
5. A curved roller drafting mechanism as claimed in claim 3, wherein: the leather roller body is cylindrical, and a gradual change notch is formed in the middle area of the roller body; or the roller body is cylindrical, and a gradual change notch is arranged in the middle area of the leather roller body.
6. The curved roller drafting mechanism as claimed in claim 2, wherein: the cross section of the gradual change type notch is arc-shaped, conical or trapezoidal.
7. The curved roller drafting mechanism as claimed in claim 1, wherein: the middle area of the leather roller body is provided with a gradual change notch, and the middle area of the roller body is provided with a gradual change bulge which is matched with the roller body; or the middle area of the leather roller body is provided with a gradual change bulge, and the middle area of the roller body is provided with a gradual change notch which is matched with the roller body.
8. The curved roller drafting mechanism as claimed in claim 7, wherein: the curvature of the gradual change type notch is different from that of the gradual change type bulge.
9. The curved roller drafting mechanism as claimed in claim 2, wherein: the gradual change type notch is symmetrically distributed along the vertical section of the center of the leather roller body or the roller body.
10. The curved roller drafting mechanism as claimed in claim 2, wherein: the middle area of the roller body is provided with a gradual change type notch, and transition bosses are arranged at two ends of the gradual change type notch; the middle area of the leather roller body is provided with gradual change type bulges, and transition notches are arranged at two ends of the gradual change type bulges;
the gradual change type notch is matched with the gradual change type bulge, the transition boss is matched with the transition notch, the gradual change type notch is different from the gradual change type bulge in curvature, and the transition notch is different from the transition boss in curvature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311564887.2A CN117535835A (en) | 2023-11-22 | 2023-11-22 | Curved roller drafting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311564887.2A CN117535835A (en) | 2023-11-22 | 2023-11-22 | Curved roller drafting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117535835A true CN117535835A (en) | 2024-02-09 |
Family
ID=89783886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311564887.2A Pending CN117535835A (en) | 2023-11-22 | 2023-11-22 | Curved roller drafting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117535835A (en) |
-
2023
- 2023-11-22 CN CN202311564887.2A patent/CN117535835A/en active Pending
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