阅读说明：本技术 筛制造方法 (Screen manufacturing method ) 是由 W.布雷特施奈德 I.考尔 M.谢德勒 R.伯格 J.亚伯拉罕 于 2020-02-13 设计创作，主要内容包括：在一种用于制造具有多个型材棒(12)的筒形的筛装置(10)的方法中,所述型材棒(12)彼此平行并且平行于筒轴线地插入设置在多个间隔棒固持环(14)的内侧面上的边缘敞开的凹部(16)中,所述多个棒固持环分别在垂直于筒轴线的平面中围绕筒轴线延伸并且沿轴向相互间隔开,所述凹部在其形状方面至少基本上与型材棒(12)的棒脚(18)的形状互补然而首先还略微大于型材棒的棒脚,并且棒固持环(14)的内径和外径通过径向从外部作用的力被永久减小,直至型材棒(12)和棒固持环(14)的凹部(16)之间形状配合。在此,通过分布在棒固持环(14)的圆周上的压爪(20)施加径向从外部作用的力,所述压爪分别设有多个沿周向和径向延伸的用于容纳相应的棒固持环(14)的槽(22),所述槽(22)中的分别仅一部分在相应的压制过程期间作为压槽用于直接径向压制相关的棒固持环(14),并且其他的槽(22)仅用作导槽,通过所述导槽防止相关的棒固持环(14)轴向偏移,和/或也可以使用预制有波形外轮廓的棒固持环(14),该棒固持环在其波形外轮廓(28)上通过径向从外部作用的力被径向压制。(In a method for producing a cylindrical screen device (10) having a plurality of profile bars (12), which profile bars (12) are inserted parallel to one another and parallel to a cylinder axis into open-edged recesses (16) which are arranged on the inner side of a plurality of spacer bar retaining rings (14) which extend around the cylinder axis in a plane perpendicular to the cylinder axis and are spaced apart from one another in the axial direction, the recesses are at least substantially complementary in terms of their shape to the shape of the legs (18) of the profile bars (12) but are at first also slightly larger than the legs of the profile bars, and the inner and outer diameters of the bar retaining rings (14) are permanently reduced by a force acting radially from the outside until there is a form fit between the recesses (16) of the profile bars (12) and the bar retaining rings (14). Here, the forces acting radially from the outside are exerted by pressure claws (20) distributed over the circumference of the rod holding ring (14), which are each provided with a plurality of grooves (22) extending in the circumferential direction and radially for receiving the respective rod holding ring (14), only a part of the grooves (22) being used as pressure grooves during the respective pressing process for directly pressing the respective rod holding ring (14) radially, and the other grooves (22) serving only as guide grooves, by means of which the respective rod holding ring (14) is prevented from being axially offset, and/or it is also possible to use a rod holding ring (14) which is pre-profiled with a wave-shaped outer contour and is pressed radially on its wave-shaped outer contour (28) by the forces acting radially from the outside.)

1. Method for producing a cylindrical screen device (10) having a plurality of profile bars (12), in which method the profile bars (12) are inserted parallel to one another and parallel to a cylinder axis into open-edged recesses (16) which are arranged on the inner side of a plurality of bar retaining rings (14), the plurality of bar retaining rings (14) each extending in a plane perpendicular to the cylinder axis around the cylinder axis and being spaced apart from one another in the axial direction, the recesses being at least substantially complementary in shape to the shape of the bar feet (18) of the profile bars (12) but at first also slightly larger than the bar feet of the profile bars, and the inner and outer diameters of the bar retaining rings (14) being permanently reduced by a force acting radially from the outside until there is a form fit between the profile bars (12) and the recesses (16) of the bar retaining rings (14), wherein the force acting radially from the outside is reduced by press claws (20) which are distributed over the circumference of the bar retaining rings (14) -applying, the press jaws each having a plurality of circumferentially and radially extending grooves (22) for receiving the respective rod holding ring (14), only a part of the grooves (22) being press grooves each for directly radially pressing the associated rod holding ring (14) during the respective pressing process, and the other grooves (22) only serving as guide grooves by means of which the associated rod holding ring (14) is prevented from being axially displaced, and/or-using rod holding rings (14) each pre-formed with a wave-shaped outer contour (28) which are radially pressed on their wave-shaped outer contour (28) by a force acting radially from the outside.

2. A method according to claim 1, wherein different rod holding rings (14) are subjected in succession to direct radial pressing by means of the pressing grooves (22') of the respective pressing jaws (20).

3. Method according to claim 2, wherein the rod holding ring (14) equipped with the profile rod (12) and the press jaws (20) are axially displaceable relative to each other for the purpose of successive direct radial pressing of different rod holding rings (14) by means of the press grooves (22') of the respective press jaws (20).

4. Method according to at least one of the preceding claims, wherein press jaws (20) are used which each have two to nine circumferentially and radially extending grooves (22) for receiving a respective rod holding ring (14).

5. Method according to at least one of the preceding claims, wherein pressing jaws (20) are used, each having an odd number of circumferentially and radially extending grooves (22) for receiving a respective rod-holding ring (14), only the central one of said grooves (22) being provided as a pressing groove (20').

6. A method according to claim 5, wherein when using a rod holding ring (14) with a respective initial outer diameter in the range of 1200mm, press jaws (20) are used which each have five, seven or nine circumferentially and radially extending grooves (22) for accommodating the respective rod holding ring, and when using a rod holding ring (14) with a respective initial outer diameter of less than about 600mm, press jaws (20) are used which each have three circumferentially and radially extending grooves (22) for accommodating the respective rod holding ring (14).

7. Method according to at least one of the preceding claims, wherein the rod holding ring (14) is radially pressed by a plurality of pressing jaws (20) evenly distributed over the circumference of the rod holding ring (14).

8. A method according to claim 7, wherein intermediate jaws (26) are inserted into the associated interspaces (24) in order to bridge the distance provided between the evenly circumferentially extending pressing jaws (20) at the beginning of the respective pressing process, which decreases with increasing radial pressing of the rod holding ring (14).

9. Method according to at least one of the preceding claims, wherein before pressing the bar retaining ring (14) radially, there is an air gap between the profile bar (12) inserted respectively in the recess (16) of the bar retaining ring (14) and the wall of the recess (16) in the circumferential direction of the cylindrical screen means.

10. Method according to at least one of the preceding claims, wherein the radial pressing path to which the respective rod holding ring (14) is subjected is selected depending on the target inner diameter, i.e. the predefinable final inner diameter of the respective rod holding ring (14).

11. Method according to at least one of the preceding claims, wherein the radial pressing path to which the respective rod holding ring (14) is subjected is determined at least substantially by the following relation:

wherein, P ═ ((Z × P)_i)+(N×L×F)/Pi)-Z

P is the radial press path;

z ═ the target inner diameter, i.e. the predefinable final inner diameter of the respective rod holding ring (14);

pi is circumference ratio;

n is the number of recesses (16) provided in total in the rod holding ring (14);

l-the air gap between the profile bar (12) inserted in the recess (16) of the respective bar retaining ring (14) and the wall of the recess (16) in the circumferential direction of the cylindrical screen device (10);

f is an additional coefficient.

12. Method according to at least one of the preceding claims, wherein the average air gap between the profile bars (12) and the walls of the recess (16) of the bar holding ring (14), which is predefined before pressing the bar holding ring (14) radially in the circumferential direction of the cylindrical screen device (10), is between about 0.02mm and about 0.06mm, preferably in the range of 0.02mm, 0.04mm or 0.06 mm.

13. Method according to at least one of the preceding claims, wherein the axial thickness of the respective rod holding ring (14) is between 2mm and 8mm, and preferably between 2.5mm and 4mm, independently of the final outer diameter of the cylindrical screen device (10).

14. Method according to at least one of the preceding claims, wherein, when using such a rod holding ring (14) pre-manufactured with a wave-shaped outer contour (28), the outer contour (28) of the rod holding ring (14) is corrugated in such a way that during radial pressing each rod holding ring (14) forms macro-and/or micro-waves on its wave-shaped outer contour (28) in axial and radial direction, respectively, and experiences a mixing between the radial pressing forces acting directly in the region of the respective wave crest and the traction forces occurring in the region of the respective wave trough in radial and oblique relation to the directly acting radial forces.

15. Method according to at least one of the preceding claims, wherein, when using a rod holding ring (14) pre-formed with a wave-shaped outer contour, the wave formed by the outer contour (28) of the rod holding ring (14) is at least substantially sinusoidal.