US3501937A - Stripper guide - Google Patents
Stripper guide Download PDFInfo
- Publication number
- US3501937A US3501937A US668141A US3501937DA US3501937A US 3501937 A US3501937 A US 3501937A US 668141 A US668141 A US 668141A US 3501937D A US3501937D A US 3501937DA US 3501937 A US3501937 A US 3501937A
- Authority
- US
- United States
- Prior art keywords
- guide
- stripper
- work rolls
- tip
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
- B21B39/165—Guides or guide rollers for rods, bars, rounds, tubes ; Aligning guides
Definitions
- the invention relates generally to a stripper guide for use with a rod and bar mill and is adapted to receive the rolled workpiece from the mill and guide it along a substantially straight passline. More specifically, the stripper guide of the invention includes a guide body, in the form of a pipe section, and having at its head or inlet end a portion defining an inlet opening into which the workpiece exiting from the roll gap enters the guide body.
- the guide is mounted operatively adjacent the exit side of the roll gap.
- Means such as a spring, is provided for urging the guide axially toward the work rolls adjacent the roll.
- the stripper guides serve to receive the rolled workpiece as it emerges from the gap of the work rolls and insures that its leading end emerges in the direction of the roll passline.
- the workpiece which for example may be a rod or bar, will periodically follow the contour of one of the work rolls rather than emerge in the direction of the roll passline. In this instance, the workpiece Wraps around the roll and results in what is commonly termed a cobble. Production is, of course, lost during the time required to remove the cobble from the mill.
- Another object of the invention is to provide a stripper guide of unitized construction wherein the head or stripper-guide tip, which is subject to wear because of its contact with the work rolls, is easily replaceable to substantially minimize mill downtime.
- Yet another object of the invention is to provide a stripper guide wherein the tip or head portion thereof wears in a manner that the configuration or contour of the guide tip remains unchanged during the life thereof.
- Still another object of the invention is to provide a stripper guide that is resiliently mounted in the direction of workpiece travel so that guide breakage caused by impact imparted to the guide by a workpiece emerging from the mill will be minimized.
- FIGURE 1 is a side elevational view, in partial section, of one embodiment of a stripper guide in accordance with the invention.
- FIGURE 2 is an end elevational view of the stripper guide of FIGURE 1.
- the stripper guide of the invention includes a body member having a through passage which a workpiece, such as a rod or bar, leaving the work rolls of a mill stand passes along a horizontal passline.
- One end of the stripper-guide body has a head portion that is positioned operatively adjacent and urged to- "ice ward the gap of the mill work rolls and defines an inlet opening to the guide passage.
- the cross-sectional area of the inlet opening of the head portion is larger than the cross-sectional area of the guide passage. This facilitates entry of the workpiece leaving the gap of the work rolls into the guide passage.
- Biasin-g means such as a spring, is provided to urge the head portion axially with respect to the guide passage and into engagement with the work rolls.
- the force so urging said head portion is preselected so that Wear of the head portion caused by sliding contact with the moving work roll surfaces is minimized.
- An end portion of the outer surface of the stripper-guide head is shaped to conform to the curved surfaces of the work rolls.
- the head portion is removably secured to the body portion of the stripper guide, preferably by threaded engagement therewith.
- the body portion of the stripper guide defining the guide passage is preferably substantially circular in crosssection to facilitate the threaded engagement with the head portion of the stripper guide, which in turn facilitates replacement of the head portion.
- a stripper guide which is in accordance with the invention and designated generally as 10, mounted adjacent the roll gap of work rolls R on the exit side thereof.
- the stripper guide 10 is supported on a base or pedestal 13.
- the stripper guide has a body member 12 mounted within a housing 14 having uprights 16, which renders the housing of generally U-shape as shown in FIGURE 2.
- the member 12 is provided with a cylindrical bore 18.
- the end of the bore 18 adjacent the work rolls has a concentric, large-diameter portion 20.
- a pipe section 22 is positioned within the bore 18 and a portion thereof extends from the end of the bore adjacent the work rolls. The end of this portion is provided with threads to permit it to be connected by threaded engagement to a stripper-guide tip or head 24.
- the head 24 is of generally cylindrical structure with the end thereof adjacent the work rolls flared outwardly slightly to create an inlet opening of greater size than the remainder of the guide passage. Head 24 has curved faces 26 which conform substantially to the curved surfaces of the. work rolls. It is obvious that although section 22 and head 24 have been shown as being circular in cross-sections, other configurations can be readily used and means other than threads can be used for securing these parts together in cooperative relationship.
- a helical spring 28 which is in engagement with and urges the stripper-guide tip into contact at its curve faces 26 with the work rolls.
- entry passage 30 is axially aligned with the workpiece emerging from the gap of the work rolls.
- the workpiece is thus guided into the passage 30 and from there along the desired horizontal passline by the action of the stripper guide.
- the pressure exerted by the stripper-guide tip 24 against the work rolls may be adjusted to any desired magnitude by the proper selection of spring 28. Ideally, this pressure is such as to insure against cobbles, and yet provide minimum wear of the stripper-guide tip.
- the spring 28 also serves to impart a degree of resiliency to the guide in the direction of workpiece movement. Hence, the impact of the workpiece against the guide is to a degree absorbed to minimize guide breakage.
- the uprights 16 of housing 14 are provided with aligned rectangular openings 30.
- An elongated timber member 32 which is of rectangular cross-section, is supported within the openings 30 and extends between the uprights. When so positioned, the member 32 bears against a lug 34 integral with and extending upwardly from the mounting block 12. With the stri per guide so arranged, it is in the operable position with respect to the Work rolls as shown in FIGURE 1.
- member 32 When it is desired to remove the stripper-guide tip 24, member 32 is removed from between the uprights 14 of the stripper-guide housing. This permits the stripper guide, and specifically the member 12, to be moved axially away from the work rolls (to the right as viewed in FIGURE 1). This action provides sufficient clearance between the end of the stripper-guide tip and the work rolls to permit the tip to be removed from the end of the pipe section 22. A new tip is then installed, the member 12 and associated pipe section 22 are slid axially toward the work rolls, and the wooden member 32 is again positioned between the uprights 16 of the housing.
- the stripper guide may readily accommodate workpieces of varying diameter by merely changing the stripper-guide tip. Because the stripper-guide tip is axially urged into the roll gap and into contact with the curved work roll surfaces, the wear occasioned by contact with said work roll surfaces does not change the configuration of the tip and thus its effectiveness in directing the workpiece into the guide passage. Wear of the stripper-guide tip is minimized by the capability of selecting the desired axial force used in urging the tip against the work rolls; this is achieved by proper selection of the biasing spring.
- a stripper guide for use with a rolling mill having a pair of cooperating work rolls, said guide comprising body means defining a guide passage through which work leaving the pair of rolls is directed, a head portion at one end of said body means defining an inlet opening to said guide passage of larger cross-sectional area than the crosssectional area of said guide passage to facilitate entry of a workpiece leaving the work rolls into said guide passage, means for mounting said body means operatively adjacent the work rolls, and biasing means assembled between said body means and said mounting means in a manner such that said head portion is urged in a direction substantially parallel to the axis of said guide passage and into continuous contact with working surfaces of the Work rolls at a preselected pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66814167A | 1967-09-15 | 1967-09-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3501937A true US3501937A (en) | 1970-03-24 |
Family
ID=24681177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US668141A Expired - Lifetime US3501937A (en) | 1967-09-15 | 1967-09-15 | Stripper guide |
Country Status (1)
Country | Link |
---|---|
US (1) | US3501937A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4334420A (en) * | 1980-05-06 | 1982-06-15 | Phillips Petroleum Co. | Tube guide |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US545513A (en) * | 1895-09-03 | Max mannesman | ||
US1950525A (en) * | 1930-07-17 | 1934-03-13 | Gardiner Metal Co | Machine for rolling core solder |
-
1967
- 1967-09-15 US US668141A patent/US3501937A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US545513A (en) * | 1895-09-03 | Max mannesman | ||
US1950525A (en) * | 1930-07-17 | 1934-03-13 | Gardiner Metal Co | Machine for rolling core solder |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4334420A (en) * | 1980-05-06 | 1982-06-15 | Phillips Petroleum Co. | Tube guide |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: COLT INDUSTRIES OPERATING CORP. Free format text: MERGER AND CHANGE OF NAME;ASSIGNOR:CRUCIBLE CENTER COMPANY (INTO) CRUCIBLE INC. (CHANGED TO);REEL/FRAME:004120/0308 Effective date: 19821214 |
|
AS | Assignment |
Owner name: CRUCIBLE MATERIALS CORPORATION, PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:COLT INDUSTRIES OPERATING CORP.;REEL/FRAME:004194/0621 Effective date: 19831025 Owner name: CRUCIBLE MATERIALS CORPORATION, A DE CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:COLT INDUSTRIES OPERATING CORP.;REEL/FRAME:004194/0621 Effective date: 19831025 |
|
AS | Assignment |
Owner name: MELLON BANK, N.A. FOR THE CHASE MANHATTAN BANK (NA Free format text: SECURITY INTEREST;ASSIGNOR:CRUCIBLE MATERIALS CORPORATION, A CORP. OF DE.;REEL/FRAME:004490/0452 Effective date: 19851219 Owner name: CHASE MANHATTAN BANK, THE (NATIONAL ASSOCIATION) A Free format text: SECURITY INTEREST;ASSIGNOR:CRUCIBLE MATERIALS CORPORATION, A CORP. OF DE.;REEL/FRAME:004490/0452 Effective date: 19851219 Owner name: MELLON FINANCIAL SERVICES CORPORATION Free format text: SECURITY INTEREST;ASSIGNOR:CRUCIBLE MATERIALS CORPORATION, A CORP. OF DE.;REEL/FRAME:004490/0410 Effective date: 19851219 Owner name: MELLON BANK, N.A. AS AGENT FOR MELLON BANK N.A. & Free format text: SECURITY INTEREST;ASSIGNOR:CRUCIBLE MATERIALS CORPORATION, A CORP. OF DE.;REEL/FRAME:004490/0410 Effective date: 19851219 |