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JP-7857355-B2 - Stand housing including roller guides

JP7857355B2JP 7857355 B2JP7857355 B2JP 7857355B2JP-7857355-B2

Inventors

  • ギュンター・シュヌーク
  • ムスタファ・ギュルカン
  • セルゲイ・ゲネラロフ
  • ラルフ・デデケン

Assignees

  • コックス・テヒニク・ゲーエムベーハー・ウント・コ・カーゲー

Dates

Publication Date
20260512
Application Date
20240729
Priority Date
20240516

Claims (8)

  1. A stand (1) for rolling a metal rod, wire, or pipe along a rolling axis (19), Three rollers (20.1, 20.2, 20.3) are each positioned on a single roller shaft, surrounding the rolling shaft (19) in a star shape and together forming a caliber (21), A stand housing (10) having an outer surface (12) including at least six side surfaces (14.1, 14.2, 14.3, 14.4, 14.5, 14.6) that are offset by 60° around the rolling axis (19) when viewed along the rolling axis (19), and two end surfaces (13, 15) opposite to each other, wherein the side surfaces (14.1 to 14.6) form a regular hexagon at least along an imaginary extension, and the stand housing (10) A roller guide (60) is attached to one of the two end faces (13, 15) of the stand housing (10) and includes a universal shaft (62), the universal shaft (62) includes a roller adjustment connector (64), the roller guide (60) is capable of central adjustment via the roller adjustment connector (64), and the roller adjustment connector (64) is attached to the stand housing (10) at the corners (16.1, 16.2, 16.3, 16.4, 16.5, 16.6) of the regular hexagon, and the roller guide (60) is attached to one of the two end faces (13, 15) of the stand housing (10) and includes a universal shaft (62), the universal shaft (62) includes a roller adjustment connector (64), the roller guide (60) is capable of central adjustment via the roller adjustment connector (64), and the roller adjustment connector (64) is attached to the stand housing (10) at the corners (16.1, 16.2, 16.3, 16.4, 16.5, 16.6) of the regular hexagon, Includes stand (1).
  2. The stand (1) according to claim 1, wherein the stand housing (10) includes at least one pair of coupling clamp regions (50.1, 50.2, 50.6) located at one corner (16.1, 16.2, 16.6) of the regular hexagon, the roller adjustment connector (64) is attached to the at least one pair of coupling clamp regions (50.1, 50.2, 50.6), one of the pair of coupling clamp regions (50.1, 50.2, 50.6) is located at one of the two end faces (13, 15), and the other of the pair of coupling clamp regions (50.1, 50.2, 50.6) is located at the other of the two end faces (15, 13).
  3. The stand (1) according to claim 2, comprising two pairs of coupling clamping regions (50.2, 50.6), wherein one of the two pairs (50.2, 50.6) is positioned at one corner (16.2, 16.6) of the regular hexagon, and the other pair (50.6, 50.2) is positioned at a corner (16.6, 16.2) of the regular hexagon offset by 120° around the rolling axis (19), and the roller adjustment connector (64) is attached to one of the two pairs (50.2, 50.6).
  4. The stand (1) according to claim 2 or 3, comprising three pairs of coupling clamping regions (50.1, 50.2, 50.6), wherein one of the three pairs (50.1) is positioned at one corner (16.1) of the regular hexagon, and the other two (50.2, 50.6) are positioned at the corners adjacent to the first corner (16.2, 16.6), and the roller adjustment connector (64) is attached to one of the three pairs (50.1, 50.2, 50.6).
  5. The stand (1) according to claim 1 or 2, wherein the stand housing (10) includes at least one working material connection portion (42.1, 42.2, 42.3) on the end faces (13, 15), and the roller guide (60) includes a working material line (66) connected to the working material connection portion (42.1, 42.2, 42.3) on the stand housing (10).
  6. The stand (1) according to claim 1, further comprising an adjustment connector (30 ) for introducing an adjustment torque to adjust the radial position of the roller shaft in order to set the caliber (21).
  7. The stand (1) according to claim 6, wherein the adjustment connector (30) is located on the outer side (12) of the stand housing (10) at one of the corners (16.1 to 16.6) of the regular hexagon.
  8. The stand (1) according to claim 6 or 7, wherein the adjustment connector (30) is manually operable.

Description

This invention relates to a stand for rolling long metal products, specifically rods, wires, or pipes, along a rolling axis, wherein the stand includes a roller guide mounted on the inlet side of the stand. A stand for rolling rod-shaped material is generally known in the manufacture of metal pipes, rods, or wires. In this case, the material to be rolled can be rolled to a desired diameter, provided that the caliber is appropriately set. For example, a stand in the above technical field is known from Patent Document 1. Generally, multiple stands are arranged in sequence in a rolling mill. As a result, the material to be rolled stretches, particularly due to the difference in roller speeds between individual stands, allowing it to be rolled to a smaller diameter. Furthermore, the roundness of the material to be rolled is generally insufficient after passing through one stand. This is because, due to the typically star-shaped arrangement of the rollers and their relatively small number, the cross-section takes on a polygonal shape, with the number of sides of the polygon corresponding to the number of rollers in the stand. For example, material to be rolled by a single three-roller stand will not be ideally round, but rather have a cross-sectional shape that is roughly triangular. The successive stands are preferably arranged so that, in order to improve the roundness of the material to be rolled, the corners of the cross-section of the material to be rolled as it leaves the stand are in contact at the center by the rollers of the next stand, resulting in a rounded cross-section of the material to be rolled. Therefore, in a rolling mill with, for example, four stands, the three rollers of the first and third stands are typically arranged in what is known as a "Y configuration," while the rollers of the subsequent stands, for example, the second and fourth stands, are arranged in what is known as an "inverted Y configuration" (λ). Due to the alternating arrangement of rollers and stands in the Y and inverted Y configurations, the corners of the cross-section of the material to be rolled are rounded by the rollers using the next stand, resulting in a rounded cross-section. In the Y configuration, the lower roller is oriented such that its roller shaft is horizontal in the field of view of the rolling axis, i.e., its diameter extends vertically. In contrast, in the inverse Y configuration, it is the upper roller whose roller shaft is horizontal in the field of view of the rolling axis, i.e., its diameter extends vertically. In both cases, the roller shafts of the two additional rollers are positioned at a 120° angle to the horizontal roller shaft. Of course, the overall orientation relative to the horizontal is arbitrary, as only the relative position of the rollers to adjacent stands is important for the effect described here. Switching between different configurations of conventional rectangular prism stands is typically done by rotating them approximately 180° around the horizontal axis. However, this switching results in the exchange of the inlet side—the end face of the stand where the material to be rolled enters—and the outlet side—the opposite end face where the material to be rolled exits—in addition to other obstacles. In other words, the inlet side becomes the outlet side, and vice versa. The formation of a rolling mill by arranging stands at the front and rear is typically done using stand bases, into which the stands are introduced and held. This allows for the replacement of stands from the rolling mill, for example, for periodic maintenance. To prevent the material to be rolled from undergoing torsional movement between consecutive stands, and to prevent difficulties in controlling the point of application of the rollers along the periphery of the material to be rolled, roller guides are known, typically attached to the stand at the entrance side of the stand. This type of configuration is known, for example, from Patent Document 2. Particularly effective roller guides demonstrate the possibility of centrally adjusting the caliber between infeed rollers using a roller adjustment mechanism. For this purpose, for example, a shaft, usually a universal shaft, is used to introduce roller adjustment torque via a roller adjustment connector, i.e., a coupling for the shaft, and this connection can be fixed to a stand. Furthermore, there are two basic configurations for the roller adjustment connector: manual adjustment of the rollers and automatic adjustment, also known as remote adjustment. While the placement of the roller adjustment connector on the operator side of the stand housing allows for good accessibility for manual operation of the roller stand connection from this side, this arrangement does not allow for easy operation and activation of the roller adjustment connector automatically, i.e., by remote adjustment. This is because the motor required for this cannot be provided on this side withou