Multi-knife grinding fixture device for metal card clothing upper die

Abstract

This invention discloses a multi-blade grinding fixture for metal needle cloth upper dies, relating to the processing of carding components in textile machinery. This invention solves the problems of straight-edge bending deformation or burrs caused by previous vertical grinding upper dies when punching needle cloth. The multi-blade grinding fixture for metal needle cloth upper dies includes a concave clamping plate and a convex clamping plate. The inner end face of the concave clamping plate has several isolation columns perpendicular to the outer end face of the concave plate at equal intervals. The inner end face of the convex clamping plate has several isolation grooves perpendicular to the outer end face of the convex plate at equal intervals. Using this invention, the structure is simple, convenient, time-saving, labor-saving, and grinding is straightforward.

Description

Technical Field

[0001] The invention relates to the field of carding component processing of textile machinery, in particular to a multi-knife grinding fixture device for a metal card clothing upper cutter die. Background Art

[0002] The tooth punching process is an important part of the manufacturing process of metal card clothing. The tooth punching machine for card clothing processing includes a tooth punching mechanism and a material pulling mechanism. Three to four punching knives, namely, upper knife dies, are fixed at equal distances around the knife disc in the tooth punching mechanism. The upper knife die includes a fixed base and a knife body. The top of the knife body is a tooth punching arc, and the two sides of the tooth punching arc are tooth punching inclined surfaces and tooth punching straight surfaces. When the upper knife die is running from top to bottom during tooth punching, the card clothing is also pulled forward at a uniform speed by the material pulling mechanism. The existing grinding machine basically grinds the tooth punching straight surface of the upper knife die vertically. Since the width of the tooth punching straight surface of the upper knife die is usually about 0.8 cm, the upper knife die with such a width cannot leave the card clothing instantly when it continues to move downward after tooth punching. In fact, after tooth punching, the tooth punching straight surface of the upper knife die gradually increases the resistance to the card clothing that moves at a uniform speed after being punched, that is, the movement of squeezing the card clothing, until the upper knife die is completely separated from the card clothing, so that the resistance, that is, the squeezing force, disappears. This means that when the tooth punching surface is a vertically ground upper knife die, the card clothing is blocked by the upper knife die during operation, and the extrusion pressure is gradually increased, resulting in straight edge bending deformation or burrs, resulting in unqualified card clothing.

[0003] The upper cutter die is easily worn or damaged during the processing of the card clothing, so it is necessary to frequently process or re-grind the upper cutter die during the production of the card clothing. Usually, the grinding machine is equipped with a fixed clamp seat for fixing the upper cutter die and a circular grinding wheel for grinding the upper cutter die. The rotating circular grinding wheel can only grind the fixed upper cutter die vertically from top to bottom. If the circular grinding wheel is made to have a certain inclination angle, that is, the circular grinding wheel is manually rotated to grind the upper cutter die, so as to achieve a certain inclination angle of the punching tooth straight surface of the upper cutter die to eliminate the drawbacks of the straight edge bending or burrs of the card clothing during the punching tooth, the upper cutter die is vertically fixed on the fixed clamp seat of the grinding machine, so that only one upper cutter die can be ground at a time. Such operation not only makes the efficiency very low, but also it is difficult to avoid large errors in the inclination angle of the punching tooth straight surface of each upper cutter die in each manual operation. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a multi-knife grinding fixture device for a metal card clothing upper cutter die which has a simple structure, is easy to use, saves time and effort, and is simple to grind.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a multi-knife grinding fixture device for a metal card clothing upper cutter die, comprising a fixed clamp seat for fixing the upper cutter die on a grinding machine, and a circular grinding wheel for grinding the upper cutter die is arranged on the grinding machine; the upper cutter die comprises a cutter body and a fixed base, and the fixed base is in a rectangular parallelepiped shape; the cutter body comprises a tooth-punching inclined surface, a tooth-punching circular arc and a tooth-punching straight surface, and the multi-knife grinding fixture device for the metal card clothing upper cutter die is provided with a concave clamping plate and a convex clamping plate, and the concave clamping plate comprises an outer end surface of the concave plate and an inner end surface of the concave plate, and the outer end surface of the concave plate is connected to the concave plate. The included angle of the inner end face is a, and a plurality of spacer columns perpendicular to the outer end face of the concave plate are arranged at equal distances on the inner end face of the concave plate of the concave splint, and the inner end faces of the concave plates between adjacent spacer columns and adjacent spacer columns form an upper die-cutting die fixing groove; the convex splint includes a convex plate outer end face and a convex plate inner end face, and the included angle between the convex plate outer end face and the convex plate inner end face is b, and a plurality of spacer grooves perpendicular to the outer end face of the convex plate are arranged at equal distances on the convex plate inner end face of the convex splint, and each convex plate inner end face equally divided by the spacer grooves is an upper die-cutting die pressing plate surface; the degrees of a and b are equal;

[0006] The outer end face of the concave plate of the concave splint is equal in size to the outer end face of the convex plate of the convex splint, and the inner end face of the concave plate of the concave splint is equal in size to the inner end face of the convex plate of the convex splint; the inner end face of the concave plate between adjacent isolation column plates is equal in size to the plate surface pressed by the upper cutting mold; after the concave splint and the convex splint fix several upper cutting molds, the overall shape of the concave splint and the convex splint is a rectangular parallelepiped, that is, the inner end face of the concave plate at one end of the concave plate inner end face of the concave splint forms an angle with the outer end face of the concave plate, and the inner end face of the convex plate of the convex splint overlaps with the inner end face of the convex plate at one end separated from the inner end face of the convex plate outer end face.

[0007] The distance between the isolation column plates is greater than the height of the fixed base of the upper cutting die, the height of the isolation groove is greater than or equal to the height of the isolation column plates, and the height of the upper cutting die is less than the distance between the isolation column plates; four upper cutting die fixing grooves are arranged on the concave splint, and four upper cutting die pressing plate surfaces are arranged on the convex splint.

[0008] The beneficial effects of the present invention are as follows: the multi-knife grinding fixture device for the upper cutter dies of the metal card clothing of the present invention has a simple structure and is easy to use; the concave clamping plate and the convex clamping plate not only fix the multiple upper cutter dies together on the fixed clamping seat of the grinding machine tool for grinding by the circular grinding wheel, but also can realize that the punching tooth straight surface of each upper cutter die forms an angle of 2° with the side surface of the fixed base, thereby solving the problem that when the punching tooth straight surface of the upper cutter die is not inclined, the operation of the card clothing is blocked by the upper cutter die to produce straight edge bending deformation or burrs, and avoiding the disadvantage of producing unqualified card clothing; grinding multiple upper cutter dies at the same time not only greatly improves the work efficiency, but also ensures that the angle between the punching tooth straight surface of each upper cutter die and the side surface of the fixed base is error-free.

[0009] The multi-knife grinding fixture device for the upper cutter die of the metal card clothing of the present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the use of the present invention on a grinding machine tool;

[0011] Figure 2 It is a schematic diagram of the upper cutting die structure of the present invention;

[0012] Figure 3 It is a schematic diagram of the three-dimensional structure of the concave splint of the present invention;

[0013] Figure 4 It is a schematic diagram of the three-dimensional structure of the convex splint of the present invention;

[0014] Figure 5 It is a three-dimensional schematic diagram of the use of the concave splint and the convex splint of the present invention in combination;

[0015] Figure 6 It is a cross-sectional view showing the coordinated application of the concave clamping plate and the convex clamping plate of the present invention.

[0016] In the figure: 1. grinding machine, 2. upper cutting die, 3. fixed clamp seat, 4. circular grinding wheel, 5. cutter body, 6. fixed base, 7. tooth bevel, 8. tooth arc, 9. tooth straight surface, 10. concave clamp, 11. convex clamp, 12. concave plate outer end surface, 13. concave plate inner end surface, 14. isolation column plate, 15. upper cutting die fixing groove, 16. convex plate outer end surface, 17. convex plate inner end surface, 18. isolation groove. DETAILED DESCRIPTION

[0017] like Figure 1 As shown, the metal card clothing upper cutter die multi-knife grinding fixture device of this embodiment includes a fixed clamp seat 3 for fixing the upper cutter die 2 on a grinding machine 1, and a circular grinding wheel 4 for grinding the upper cutter die 2 is provided on the grinding machine 1. Figure 2 As shown, the upper cutting die 2 comprises a cutting body 5 and a fixed base 6, wherein the fixed base 6 is in a rectangular parallelepiped shape. The cutting body 5 comprises a tooth punching inclined surface 7, a tooth punching arc 8 and a tooth punching straight surface 9.

[0018] like Figure 3 and Figure 4 As shown, the multi-knife grinding fixture device for the upper die of the metal card clothing is provided with a concave clamping plate 10 and a convex clamping plate 11, the concave clamping plate 10 includes a concave plate outer end surface 12 and a concave plate inner end surface 13, the angle between the concave plate outer end surface 12 and the concave plate inner end surface 13 is 2°, five spacer columns 14 perpendicular to the concave plate outer end surface 12 are arranged at equal distances on the concave plate inner end surface 12 of the concave clamping plate 10, and the concave plate inner end surfaces 13 between adjacent spacer columns 14 and adjacent spacer columns 14 form an upper die fixing groove 15. The convex clamping plate 11 includes a convex plate outer end surface 16 and a convex plate inner end surface 17, the angle between the convex plate outer end surface 16 and the convex plate inner end surface 17 is 2°, three spacer grooves 18 perpendicular to the convex plate outer end surface 16 are arranged at equal distances on the convex plate inner end surface 17 of the convex clamping plate 11, and the four convex plate inner end surfaces 17 equally divided by the three spacer grooves 18 are the upper die pressing plate surfaces.

[0019] like Figure 5 and Figure 6 As shown, the concave plate outer end surface 12 of the concave splint 10 is equal in size to the convex plate outer end surface 16 of the convex splint 11, and the concave plate inner end surface 13 of the concave splint 10 is equal in size to the convex plate inner end surface 17 of the convex splint 11. The concave plate inner end surface 13 between adjacent isolation column plates 14 is equal in size to the upper die pressing plate surface 19; after the concave splint 10 and the convex splint 11 fix the four upper die cutters 2, the overall shape of the concave splint 10 and the convex splint 11 is a rectangular parallelepiped, that is, the concave plate inner end surface 13 of the concave splint 10 at one end of the angle formed with the concave plate outer end surface 12 corresponds to the convex plate inner end surface 17 of the convex splint 11 at one end of the separation from the convex plate outer end surface 16. The distance between the isolation column plates 14 is greater than the height of the fixed base 6 of the upper cutting die 2 , the height of the isolation groove 18 is greater than or equal to the height of the isolation column plates 14 , and the height of the upper cutting die 2 is less than the distance between the isolation column plates 14 .

[0020] Place the four upper cutting dies 2 into the upper cutting die fixing grooves 15 of the concave splint 10 in sequence and in the same direction, the same direction means that the tooth-punching inclined surfaces 7 of the upper cutting dies 2 are all on the same side, and then align the thick side of the convex splint 11 with the thin side of the concave splint 10 and the thin side of the convex splint 11 with the thick side of the concave splint 10 and press them. At this time, the three isolation columns 14 in the middle of the concave splint 10 are inserted into the three isolation grooves 18 on the convex splint 11, and the two sides of the convex splint 11 will enter the inner side of the isolation columns 14 on both sides of the concave splint 10, so that the four upper cutting dies 2 become a whole under the clamping of the concave splint 10 and the convex splint 11, and the concave splint 10 and the convex splint 11 are pressed tightly to form a rectangular parallelepiped shape, and the tooth-punching straight surfaces 9 of the four upper cutting dies 2 are 2° with the concave splint 10 and the convex splint 11 to form the side of the rectangular parallelepiped. Therefore, the rectangular parallelepiped formed by the concave clamping plate 10 and the convex clamping plate 11 is fixed to the fixed clamping seat 3 of the grinding machine 1, and then the circular grinding wheel 4 grinds the upper cutting die 2, so that the punching tooth straight surface 9 of each upper cutting die 2 forms an angle of 2° with the side surface of the fixed base 6, thereby effectively eliminating the disadvantages of the upper cutting die 2 forming an extrusion pressure when the needle clothing is running, causing straight edge bending deformation or burrs; grinding multiple upper cutting dies 2 at the same time also greatly improves work efficiency.

Claims

1. A multi-knife grinding fixture device for a metal card clothing upper cutter die, comprising a fixed clamp seat for fixing the upper cutter die on a grinding machine, and a circular grinding wheel for grinding the upper cutter die is arranged on the grinding machine; the upper cutter die comprises a cutter body and a fixed base, and the fixed base is in a rectangular parallelepiped shape; the cutter body comprises a tooth-punching inclined surface, a tooth-punching arc and a tooth-punching straight surface, and is characterized in that: The multi-knife grinding fixture device for the upper knife die of the metal needle cloth is provided with a concave clamp and a convex clamp, the concave clamp includes an outer end face of the concave plate and an inner end face of the concave plate, the angle between the outer end face of the concave plate and the inner end face of the concave plate is a, a plurality of isolation column plates perpendicular to the outer end face of the concave plate are arranged at equal distances on the inner end face of the concave plate of the concave clamp, and the inner end faces of the concave plates between adjacent isolation column plates and adjacent isolation column plates form an upper knife die fixing groove; the convex clamp includes an outer end face of the convex plate and an inner end face of the convex plate, the angle between the outer end face of the convex plate and the inner end face of the convex plate is b, a plurality of isolation grooves perpendicular to the outer end face of the convex plate are arranged at equal distances on the inner end face of the convex plate of the convex clamp, and each inner end face of the convex plate equally divided by the isolation grooves is an upper knife die pressing plate surface; the degrees of a and b are equal; The concave outer end surface of the concave splint is equal in size to the convex outer end surface of the convex splint, and the concave inner end surface of the concave splint is equal in size to the convex inner end surface of the convex splint; the concave inner end surface between adjacent isolation column plates is equal in size to the upper die pressing plate surface; after the concave splint and the convex splint fix a number of upper die cutters, the overall shape of the concave splint and the convex splint is a rectangular parallelepiped, that is, the concave inner end surface of the concave splint at one end of the angle formed by the concave inner end surface and the concave outer end surface corresponds to the convex inner end surface of the convex splint at one end of the separation from the convex outer end surface; The distance between the isolation column plates is greater than the height of the fixed base of the upper cutting die, and the height of the isolation groove is greater than or equal to the height of the isolation column plates.

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