CN114559088A - Disc scissors for processing steel-plastic composite packing belt and using method thereof - Google Patents

Disc scissors for processing steel-plastic composite packing belt and using method thereof Download PDF

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Publication number
CN114559088A
CN114559088A CN202210451122.7A CN202210451122A CN114559088A CN 114559088 A CN114559088 A CN 114559088A CN 202210451122 A CN202210451122 A CN 202210451122A CN 114559088 A CN114559088 A CN 114559088A
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disc
shear
scissors
steel
shearing
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CN114559088B (en
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庄殿铮
朱玉华
薛飞
梁宇
吕丹风
赵萌萌
曹达
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Liaoyang Baotai Sheet Metal Technology Co ltd
Shenyang University of Technology
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Liaoyang Baotai Sheet Metal Technology Co ltd
Shenyang University of Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D19/00—Shearing machines or shearing devices cutting by rotary discs
    • B23D19/04—Shearing machines or shearing devices cutting by rotary discs having rotary shearing discs arranged in co-operating pairs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)

Abstract

The invention belongs to the technical field of parts and components of slitting machines, and particularly relates to a pair of disc scissors for processing a steel-plastic composite packing belt and a using method thereof. The invention solves the problems that the existing packing belt cutter has a single sheared steel belt structure and is not suitable for steel-plastic composite packing belts.

Description

Disc scissors for processing steel-plastic composite packing belt and using method thereof
Technical Field
The invention belongs to the technical field of parts and components of slitting machines, and particularly relates to a pair of disc scissors for processing a steel-plastic composite packing belt and a using method thereof.
Background
The processing technology of the composite packing belt with the curved edge profile comprises the following steps: raw material steel band → unreeling → slitting → heat treatment → surface cleaning → synchronous adjustment → composite forming → cooling → reeling → inspection and warehousing. The conventional method for processing the straight-edge steel belt is to use a steel belt coil with a certain width, unreel the steel belt coil through unreeling equipment, and change the steel belt into a plurality of narrow steel belts after longitudinally shearing and slitting on a slitting machine. The width of each steel strip is determined by the distance between two disc scissors on the slitting machine, the width of each steel strip is equal in width in the length direction, and the outlines of the left edge and the right edge of each steel strip are straight lines.
The surface of the traditional packing steel strip is generally subjected to blueing, painting, galvanizing and other treatments and is used for corrosion protection in the using process of the packing steel strip. However, the technical means such as bluing, painting and galvanization pollute the environment in the production process. The problems can be solved by coating a plastic protective layer (a steel-plastic composite packing belt) on the surface of the steel belt by surrounding the steel belt with the plastic protective layer, aiming at the steel belt coated by the plastic protective layer, and continuously changing the width of the steel belt along the length direction of the belt, or the edge profile of the steel belt is a curve, and the curve of the edge profile of the steel belt and the width change of the steel belt are continuously distributed according to a certain regular shape. The existing disc scissors are of circular ring structures, two circular surfaces are planes, only linear edge contours can be cut, the structure is single, and the existing disc scissors are not suitable for steel-plastic composite packing belts.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a pair of disc scissors for processing a steel-plastic composite packing belt, and aims to solve the problems that an existing packing belt cutter is single in structure of a steel belt and is not suitable for the steel-plastic composite packing belt.
The technical scheme is as follows:
a pair of disc scissors for processing a steel-plastic composite packing belt comprises an upper disc scissors and a lower disc scissors, wherein the upper disc scissors and the lower disc scissors are consistent in structure and are respectively composed of a scissors part and a fixing part, the scissors parts and the fixing parts are both of circular structures, the fixing parts are sleeved on the surfaces of inner rings of the scissors parts, key grooves are formed in the surfaces of the inner rings of the fixing parts, the end surface of one side of each scissors part is a plane, the end surface of the other side of each scissors part is a shearing surface, each shearing surface is an inclined plane or a curved surface, and the shearing surfaces of the upper disc scissors and the lower disc scissors are matched,
when the shearing surface is an inclined plane, the locus of the upper point of the outer ring profile curve of the end surface conforms to the following model:
Figure 735984DEST_PATH_IMAGE001
the locus of the upper point of the inner ring profile curve of the end face conforms to the following model:
Figure DEST_PATH_IMAGE002
when the shearing surface is a curved surface, the locus of the outer ring contour curve point of the end surface conforms to the following model:
Figure 824026DEST_PATH_IMAGE003
the locus of the upper point of the inner ring profile curve of the end surface is combined with the following model:
Figure DEST_PATH_IMAGE004
in the above formula, X, Y, Z is a three-dimensional coordinate, the circle center O of the end face of the disc shear is used as the origin of coordinates, the X axis and the Y axis are located in the plane of the end face, the X axis passes through the central symmetry line of the key groove, and the Z axis and the cylindrical axis OO1Overlapping, setting the radius of the cylindrical surface of the shearing surface of the disc shear where the outer ring is positioned as R and the radius of the cylindrical surface where the inner ring is positioned as R1The high point of the shearing edge curve on the cylindrical surface of the outer ring of the shearing surface is ZmaxLow point is ZminOO on the disk scissors1The angle rotated by the rotation axis is omega, and n is a positive integer greater than or equal to 1.
Further, n =1 or 2 in the model.
Further, when the shearing surface is an inclined plane, the inclined plane and the XY plane form a certain included angle alpha, and the included angle alpha ranges from 0 degree to 26.5 degrees.
Furthermore, the shearing plane is vertical to the surface of the sheared steel strip.
A method for using disc scissors for processing a steel-plastic composite packing belt comprises the steps that an upper disc scissors and a lower disc scissors are combined into a group, a plurality of groups of disc scissors are fixed on a transmission shaft through key grooves, and steel belts with different edge curves are cut through the difference of the positions of the key grooves in the inner ring surface of a fixing part.
Furthermore, the width of the steel strip is determined by the width of the adjacent fixing parts, and a fixing circular disc can be placed between the adjacent fixing parts.
Has the advantages that:
the invention provides a pair of disc scissors for processing a steel-plastic composite packing belt, which solves the problems that the structure of a steel belt cut by the existing packing belt cutter is single and the existing packing belt cutter is not suitable for the steel-plastic composite packing belt. In the process of processing the edge curve of the steel strip, the disc scissors can be directly used by being arranged on a slitting machine sold on the market, and equipment does not need to be added or changed, so that compared with the invention patent with the publication number of 200610081424.0, the disc scissors are simpler and easier to realize, and the equipment cost is low. Compared with the utility model patent with the publication number of 201120447171.0, the shearing blade curve structure of the disc scissors is more suitable for continuous and uninterrupted shearing processing of a steel strip production line, the shearing surface where the shearing blade is located is perpendicular to the surface of a steel strip, and the shearing effect is better.
Drawings
FIG. 1 is a side view of upper and lower disc shears as they shear a steel strip;
FIG. 2 is a front view of the upper and lower pair of disc shears shearing a steel strip;
FIG. 3 is a schematic view of the steel strip in the process in a sheared state;
FIG. 4 is a schematic diagram of an XYZ coordinate system of a pair of disc scissors;
FIG. 5 is a schematic view of a pair of disc shears according to embodiment 1;
FIG. 6 is a schematic view of a pair of disc scissors according to embodiment 2;
FIG. 7 shows one aspect of the keyway setting for the scissors;
FIG. 8 is another aspect of the keyway setting for the disc shears;
FIG. 9 is yet another condition of the keyway setting for the disc shears;
FIG. 10 is a schematic view of a pair of disc shears according to embodiment 3;
FIG. 11 is a schematic representation of a profile curve formed by a first strip of sheared steel;
FIG. 12 is a schematic representation of a profile curve formed by a second strip of sheared steel;
FIG. 13 is a schematic representation of a profile curve formed by a third strip of sheared steel;
FIG. 14 is a schematic representation of a profile curve formed by a fourth strip of sheared steel;
FIG. 15 is a schematic representation of a profile curve formed by a fifth strip of sheared steel;
the figure is marked with: 1. the cutting device comprises a transmission shaft, 2, a steel belt, 3, upper disc scissors, 4, lower disc scissors, 5, scissors parts, 51, a plane, 52, a cutting surface, 6, a fixing part, 61 and a key groove.
Detailed Description
The invention is described in more detail below with reference to the accompanying drawings.
The shape of the cutting edge is different from the prior circular shape, but is a combined space curve. The curve formed by the shearing edge is consistent with the edge curve of the steel belt in the composite packing belt. FIG. 1 is a schematic view of a pair of disc shears for shearing a steel strip according to the present invention. FIG. 2 is a schematic diagram of a wide-width raw material steel strip continuously sheared and processed into a steel strip by a plurality of disc shears on a slitting machine.
Example 1
As shown in 1 and 2, the disc shear for processing the steel-plastic composite packing belt comprises an upper disc shear 3 and a lower disc shear 4, the upper disc shear 3 and the lower disc shear 4 are consistent in structure, the upper disc shear 3 and the lower disc shear 4 are both composed of a shear part 5 and a fixed part 6, the shear part 5 and the fixed part 6 are both circular structures, the fixed part 6 is sleeved on the surface of an inner ring of the shear part 5, namely, an outer ring of the fixed part 6 is fixedly arranged with the inner ring of the shear part 5, a key groove 61 is arranged on the surface of the inner ring of the fixed part 6 and is used for being matched with a transmission shaft 1 and fixedly clamped on the transmission shaft 1, so that the disc shear is driven to rotate by the rotation of the transmission shaft 1, the end surface on one side of the shear part 5 is a plane 51, one end of the plane 51 is on the same plane with one end of the fixed part 6, the end surface on the other side of the shear part 5 is a shear surface 52, the shear surfaces of the upper disc shear 3 and the lower disc shear 4 are matched, the shearing function is realized, specifically, the shearing surfaces of the upper disc scissors 3 and the lower disc scissors 4 are arranged in a relatively staggered manner, and the high point Zmax of the shearing curve of the upper disc scissors 3 corresponds to the low point Zmin of the shearing curve of the lower disc scissors 4;
as shown in fig. 5, the shearing plane is an inclined plane, and the inclined plane forms an included angle α with the XY plane, where the included angle α ranges from 0 degree to 26.5 degrees. The value range of the included angle alpha is used for preventing the problems of shearing failure, steel belt deformation, dislocation of the steel belt and the scissors and the like. Through the cylindrical axis OO of the disc scissors1And any point position on the shearing blade is taken as a section plane P to obtain an intersecting line MN of the plane P and the shearing surface 52, an included angle beta exists between the MN and the cylindrical axis, the included angles beta generated by the section planes P at different positions are different, and the variation range of the included angle beta is as follows: the 90-alpha is not more than beta is not more than 90-alpha.
The locus of the upper points of the outer ring profile curve conforms to the following model:
Figure 746852DEST_PATH_IMAGE005
the locus of the upper point of the inner circle profile curve conforms to the following model:
Figure DEST_PATH_IMAGE006
in the above formula, X, Y, Z is a three-dimensional coordinate, the coordinate system is as shown in fig. 4, the circle center O of the end face of the pair of disc shears is taken as the origin of coordinates, the X-axis and the Y-axis are located in the plane of the end face, the X-axis passes through the central symmetry line of the key groove 61, and the Z-axis and the cylindrical axis OO1Overlapping, setting the radius of the cylindrical surface of the outer ring of the shearing surface 52 of the disc shear to be R, and the radius of the cylindrical surface of the inner ring to be R1The high point of the shearing edge curve on the cylindrical surface of the outer circle of the shearing surface 52 is ZmaxLow point is ZminOO on the disk scissors1The angle turned for the axis of rotation is ω.
The disc shears have the advantages that the disc shears are relatively easy to process and manufacture, and the defects that the shearing surface is not perpendicular to the surface of the steel strip 2 when the steel strip 2 is sheared, and the shearing effect is poor.
Example 2
As shown in fig. 1 and 2, a pair of disc shears for processing a steel-plastic composite packing belt comprises an upper disc shear 3 and a lower disc shear 4, wherein the upper disc shear 3 and the lower disc shear 4 are consistent in structure, the upper disc shear 3 and the lower disc shear 4 are both composed of a shear part 5 and a fixing part 6, the shear part 5 and the fixing part 6 are both circular ring structures, the fixing part 6 is sleeved on the surface of an inner ring of the shear part 5, namely, an outer ring of the fixing part 6 is fixedly arranged with the inner ring of the shear part 5, a key groove 61 is arranged on the surface of the inner ring of the fixing part 6 and is used for matching with a transmission shaft 1 and fixedly clamped on the transmission shaft 1, so that the disc shear is driven to rotate by the rotation of the transmission shaft 1, the end surface on one side of the shear part 5 is a plane 51, the end surface on the other side of the shear part 5 is a shear surface 52, and the shear surfaces 52 of the upper disc shear 3 and the lower disc shear 4 are matched to realize a shearing effect, specifically, the shearing surfaces of the upper disc scissors 3 and the lower disc scissors 4 are arranged in a relatively staggered mode, and the high point Zmax of the shearing curve of the upper disc scissors 3 corresponds to the low point Zmin of the shearing curve of the lower disc scissors 4.
The cutting surface 52 is curved, as shown in FIG. 5, i.e., passes through the cylindrical axis OO of the scissors1And any point position on the shearing blade is taken as a section plane P to obtain a planeThe intersecting line MN of P and the cutting plane 52, the height of M point and N point in the Z-axis direction are the same, and MN and the cylindrical axis OO1And is vertical. In the present embodiment, the included angles β generated by the sectional planes P at different positions are all 90 °. Namely, the shearing surface 52 in the shearing position is always perpendicular to the surface of the sheared steel strip in the continuous rotation process of the upper disc shears 3 and the lower disc shears 4.
The locus of the upper point of the outline curve of the outer ring conforms to the following model:
Figure 149014DEST_PATH_IMAGE007
the locus of the upper point of the inner circle profile curve conforms to the following model:
Figure DEST_PATH_IMAGE008
in the above formula, X, Y, Z is a three-dimensional coordinate, the coordinate system is as shown in fig. 4, the circle center O of the end face of the pair of disc shears is taken as the origin of coordinates, the X-axis and the Y-axis are located in the plane of the end face, the X-axis passes through the central symmetry line of the key groove 61, and the Z-axis and the cylindrical axis OO1Overlapping, setting the radius of the cylindrical surface of the outer ring of the shearing surface 52 of the disc shear to be R, and the radius of the cylindrical surface of the inner ring to be R1The high point of the shearing edge curve on the cylindrical surface of the outer circle of the shearing surface 52 is ZmaxLow point is ZminThe disc scissors are OO1The angle turned for the axis of rotation is ω. N =1 or 2 in the model. n can continue to increase, but is of little significance to actual production.
Example 3
As shown in fig. 1 and 2, a pair of disc scissors for processing a steel-plastic composite packing belt comprises an upper disc scissors 3 and a lower disc scissors 4, wherein the upper disc scissors 3 and the lower disc scissors 4 are identical in structure, the upper disc scissors 3 and the lower disc scissors 4 are both composed of a scissors part 5 and a fixing part 6, the scissors part 5 and the fixing part 6 are both circular structures, the fixing part 6 is sleeved on the surface of the inner ring of the scissors part 5, namely, the outer ring of the fixing part 6 is fixedly arranged with the inner ring of the scissors part 5, the surface of the inner ring of the fixing part 6 is provided with a key slot 61, the key slot 61 is used for being matched with a transmission shaft 1 and fixedly clamped on the transmission shaft 1, so that the disc scissors are driven to rotate by the rotation of the transmission shaft 1, the end surface of one side of the scissors part 5 is a plane 51, the end surface of the other side of the scissors part 5 is a shearing surface 52, and the shearing surfaces of the upper disc scissors 3 and the lower disc scissors 4 are matched to realize a shearing effect, specifically, the shearing surfaces of the upper disc scissors 3 and the lower disc scissors 4 are arranged in a relatively staggered manner, and the high point Zmax of the shearing curve of the upper disc scissors 3 corresponds to the low point Zmin of the shearing curve of the lower disc scissors 4.
The shear plane 52 is curved. In the embodiment, the heights of the M point and the N point in the Z-axis direction are the same, and the included angle beta is 90 degrees. Namely, the shearing surface 52 in the shearing position is always perpendicular to the surface of the sheared steel strip in the continuous rotation process of the upper disc shears 3 and the lower disc shears 4.
As shown in fig. 6, the locus of the upper point of the outer ring profile curve conforms to the following model:
Figure 349051DEST_PATH_IMAGE009
the locus of the upper point of the inner circle profile curve conforms to the following model:
Figure DEST_PATH_IMAGE010
in the above formula, X, Y, Z is a three-dimensional coordinate, the coordinate system is as shown in fig. 4, the circle center O of the end face of the pair of disc shears is taken as the origin of coordinates, the X-axis and the Y-axis are located in the plane of the end face, the X-axis passes through the central symmetry line of the key groove 61, and the Z-axis and the cylindrical axis OO1Overlapping, setting the radius of the cylindrical surface of the outer ring of the shearing surface 52 of the disc shear to be R, and the radius of the cylindrical surface of the inner ring to be R1The high point of the shearing edge curve on the cylindrical surface of the outer circle of the shearing surface 52 is ZmaxLow point is ZminThe disc scissors are OO1The angle turned for the axis of rotation is ω.
The shear plane advantages shown in examples 2, 3 compared to example 1 are as follows: the steel band 2 is cuted at the rotation process to the disc scissors, cuts the sword and on the shearing point position with 2 interact of steel band, and the shear plane is perpendicular with 2 surface of steel band, guarantees that shearing force vertical action has better shearing effect on steel band 2.
Example 4
As shown in fig. 3 and 5, the pair of disc scissors according to embodiment 1 or embodiment 2 is selected, the upper disc scissors 3 and the lower disc scissors 4 form a group, fig. 3 is a top view, only a plurality of upper disc scissors 3 can be seen, a plurality of groups of disc scissors are fixed on the transmission shaft 1 through the key slot 61, the disc scissors are assembled with the transmission shaft 1 through key connection, and the disc scissors are driven to rotate through the rotation of the transmission shaft 1, so that the shearing of the steel strip is completed. The position of the central symmetry line of the key groove 61 is a reference for determining the starting point of the cutting curve, and the cutting starting points of the upper disc scissors 3 and the lower disc scissors 4 for cutting the steel strip 2 are the same point of the cutting edge curve. The width of the adjacent fixing parts 6 determines the width of the steel strip 2, and a fixing ring disc can be placed between the adjacent fixing parts 6. The fixed ring disc is a ring-shaped structure consistent with the structure of the fixed part 6 and is an existing product. For increasing the distance between adjacent fixtures 6 to obtain steel strips 2 of different width requirements.
The position of the connecting key of the transmission shaft 1 is fixed, the transmission shaft 1 is a transmission shaft on the existing slitting machine, the positions of key grooves of the disc shears are different, and when the disc shears are arranged on the transmission shaft to shear steel belts, the positions of starting points of generated curves are different, so that the steel belts with different edge curves can be sheared. As shown in fig. 3, a plurality of disc scissors are sequentially arranged on the transmission shaft 1.
The outline curves formed by the disk shears shown in examples 2 and 3 by shearing the steel strip by rotating one circle by taking the central axis as a rotating shaft are shown in fig. 11, 12, 13, 14 and 15 of the drawings. In the disc shear having the structure shown in fig. 6, the central symmetry line of the key groove 61 is located on the line connecting the highest point a and the lowest point of the shearing surface 52 and on the side of the lowest point, and a contour curve formed by shearing the steel strip with the central axis as a rotation axis and rotating once from the central symmetry line of the key groove 61 to a point on the shearing edge is shown in fig. 11. In the disc shear having the structure shown in fig. 7, the central symmetry line of the key groove 61 is perpendicular to the line connecting the highest point a and the lowest point of the shearing surface 52 and is located on the inner side of fig. 7, and the contour curve formed by shearing the steel strip by rotating the central axis as the rotation axis from the point on the shearing edge corresponding to the central symmetry line of the key groove 61 is shown in fig. 12. In the disc shear having the structure shown in fig. 8, the central symmetry line of the key groove 61 is located on the line connecting the highest point a and the lowest point of the shearing surface 52, and is located on the side of the highest point a, and a contour curve formed by shearing the steel strip by rotating one circle with the central axis as the rotating shaft from the point on the shearing edge corresponding to the central symmetry line of the key groove 61 is shown in fig. 13. In the disc shear having the structure shown in fig. 9, the central symmetry line of the key groove 61 is perpendicular to the line connecting the highest point a and the lowest point of the shearing surface 52 and is located outside in fig. 9, and the contour curve formed by shearing the steel strip by rotating one circle with the central axis as the rotating axis from the central symmetry line of the key groove 61 corresponding to the point on the shearing edge is shown in fig. 14. In the disc shear shown in fig. 10, the key groove 61 is located on a line connecting two lowest points of the shearing surface 52, and a contour curve formed by shearing the steel strip by rotating one circle with the central axis as a rotating axis from a point on the shearing edge corresponding to the central symmetry line of the key groove 61 is shown in fig. 15. By controlling the shearing starting point and the combination of different contour curves, the steel-plastic composite steel belt with different combinations can be obtained.
The edge profile change of the steel belt of the steel-plastic composite steel belt prepared by the disc scissors can effectively decompose the shearing force acting on the joint surface of the steel belt and the plastic protective layer, and prevent the steel belt and the plastic protective layer from slipping. In the use, under the effect of bending and pulling force, the plastic protective layer can closely and completely wrap the steel band in the steel-plastic composite packing band, so that the problems that the environment is polluted by the treatment such as bluing, painting and galvanizing on the surface of the traditional packing steel band, the existing steel band with straight-line left and right edge outlines is directly composited with the plastic protective layer, and the slippage is generated between the steel band and the plastic protective layer are effectively solved.

Claims (6)

1. The utility model provides a disc scissors of compound packing area processing is moulded to steel which characterized in that: the disc shear comprises an upper disc shear (3) and a lower disc shear (4), the upper disc shear (3) and the lower disc shear (4) are consistent in structure, the upper disc shear (3) and the lower disc shear (4) are composed of a shear part (5) and a fixing part (6), the shear part (5) and the fixing part (6) are both of circular ring structures, the fixing part (6) is sleeved on the surface of an inner ring of the shear part (5), a key groove (61) is arranged on the surface of the inner ring of the fixing part (6), the end surface of one side of the shear part (5) is a plane (51), the end surface of the other side of the shear part (5) is a shear surface (52), the shear surface (52) is an inclined plane or a curved surface, and the shear surfaces (52) of the upper disc shear (3) and the lower disc shear (4) are matched with each other,
when the shearing surface (52) is an inclined plane, the locus of the upper point of the outer ring profile curve of the end surface conforms to the following model:
Figure 534725DEST_PATH_IMAGE001
the locus of the upper point of the inner ring profile curve of the end face conforms to the following model:
Figure 186287DEST_PATH_IMAGE002
when the shearing surface is a curved surface, the locus of the outer ring contour curve point of the end surface conforms to the following model:
Figure 762761DEST_PATH_IMAGE003
the locus of the upper point of the inner ring profile curve of the end surface is combined with the following model:
Figure 813763DEST_PATH_IMAGE004
in the above formula, X, Y, Z is a three-dimensional coordinate, the circle center O of the end face of the disc shear is used as the origin of coordinates, the X axis and the Y axis are located in the plane of the end face, the X axis passes through the central symmetry line of the key groove, and the Z axis and the cylindrical axis OO1Overlapping, setting the radius of the cylindrical surface of the shearing surface of the disc shear where the outer ring is positioned as R and the radius of the cylindrical surface where the inner ring is positioned as R1Shearing the cylindrical surface on which the outer ring of the shearing surface is positionedThe high point of the blade curve is ZmaxLow point is ZminOO on the disk scissors1The angle rotated by the rotation axis is omega, and n is a positive integer greater than or equal to 1.
2. The disc scissors for machining the steel-plastic composite packing belt according to claim 1, wherein the disc scissors comprise: n =1 or 2 in the model.
3. The disc scissors for machining the steel-plastic composite packing belt according to claim 1, wherein the disc scissors comprise: when the shearing surface (52) is an inclined plane, the inclined plane and the XY plane form a certain included angle alpha, and the value range of the included angle alpha is 0-26.5 degrees.
4. The disc scissors for machining the steel-plastic composite packing belt according to claim 1, wherein the disc scissors comprise: the shearing surface (52) is perpendicular to the surface of the sheared steel strip.
5. A use method of disc scissors for processing a steel-plastic composite packing belt is characterized by comprising the following steps: go up disc scissors (3) and disc scissors (4) down and be a set of, multiunit disc scissors passes through keyway (61) and is fixed in on transmission shaft (1), through the difference of fixed part (6) inner ring surface keyway (61) position, shears out the curved steel band of different edges.
6. The use method of the disc scissors for processing the steel-plastic composite packing belt according to claim 5, characterized in that: the width of the adjacent fixing parts (6) determines the width of the steel strip (2), and a fixed circular disc can be placed between the adjacent fixing parts (6).
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