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US 3,940,963 AGranted
Self-compensating die
AssigneeNew York Wire Mills Corporation
InventorDaniel J. Borodin
Life of this patent
Estimating the term…
Abstract
The specification discloses a self-compensating die in which a plurality of roller sets mounted in a rotating rotor rotate about a wire passing through the rotor and compressively engage the wire to thereby reduce its diameter. A sleeve rotatable with the rotor but axially slidable with respect thereto includes cams which control the roller sets in response to adjusting signals from a control system to thereby automatically compensate the roller pressure applied in response to roller wear and other errors, and to thereby provide a means for adjusting the die for production of different sized wires from a wire of a given starting diameter.
Claims39
Apparatus for reducing the cross section of rod, wire or like material comprising:
- rotor means having a longitudinally axial passageway therethrough through which material can pass and about which said rotor means is rotatably mounted;
- a plurality of sets of separate roller assemblies, each set including at least two of said roller assemblies, each of said roller assemblies including a roller mouting means and a roller rotatably mounted on said roller mounting means;
- each said roller mounting means being generally radially movably mounted in said rotor means whereby its roller can be moved towards or away from the longitudinal axis of said axial passageway;
- said roller mounting means also being rotatably mounted in said rotor means whereby the angle of orientation of said roller with respect to said axial passageway can be adjusted by rotating said roller mounting means through a particular angle of adjustment;
- said sets of roller assemblies being mounted in spaced relationship along the length of said rotor means said rollers located contiguous with said axial passageway for engaging material passing therethrough and with said rollers in said sets of roller assemblies being located closer to the longitudinal axis of said axial passageway as one proceeds along the length of said rotor means from the front thereof to the rear;
- and drive means for rotating said rotor and accordingly said rollers about the material as the material passes through said axial passageway;
- radial position control means operably connected to said plurality of roller assemblies for controlling the position of said rollers radially with respect to said axial passageway;
- angular control means operably connected to said plurality of roller assemblies for controlling the angular position of said rollers with respect to the longitudinal axis of said axial passageway whereby the angle which said rollers make with respect to wire passing through said axial passageway can be adjustably controlled.
5 more elements
Apparatus for reducing the cross section of rod, wire or like material comprising:
- rotor means having an axial passageway therethrough through which material can pass and about which said rotor means is rotatably mounted;
- a plurality of roller means, each including at least one roller, mounted in said rotor means with said rollers located contiguous with said axial passageway for engaging material passing therethrough;
- and drive means for rotating said rotor and accordingly said rollers about the material as the material passes through said axial passageway;
- each of said roller means being generally radially movably mounted in said rotor means whereby its roller can be moved towards or away from the center line of said axial passageway, said apparatus including radial position control means operably connected to said plurality of roller means for controlling the position of said rollers radially with respect to said axial passageway;
- each of said roller means being rotatably mounted within said rotor means such that the angle of the roller of the roller means with respect to the longitudinal axis of the axial passageway can be adjusted;
- angular control means operably connected to said plurality of roller means for controlling the angular position of said rollers with respect to the longitudinal axis of said axial passageway whereby the angle which said rollers make with respect to wire passing through said axial passageway can be adjustably controlled;
- sleeve means axially movably mounted about said rotor means and keyed to said rotor means for rotational movement therewith;
- said radial position control means and said angular control means both including cam means positioned within said sleeve and operably engaging said plurality of roller means, said cam means defining a cam track for each said roller means, the slope of said track providing radial position control and the path of said track providing angular adjustment control;
- each said roller means including a cam follower engaging said cam track;
- adjustment means for axially shifting said sleeve means with respect to said roller means to thereby move said cams with respect to said roller means and thereby effect adjustment of said roller means in response to movement of said cam means.
7 more elements
Apparatus for reducing the cross section of rod, wire or like material comprising:
- rotor means having an axial passageway therethrough through which material can pass and about which said rotor means is rotatably mounted;
- a plurality of roller means, each including at least one roller, mounted in said rotor means with said rollers located contiguous with said axial passageway for engaging material passing therethrough;
- and drive means for rotating said rotor and accordingly said rollers about the material as the material passes through said axial passageway;
- wire drive means for pulling wire through said axial passageway of said roller means;
- said wire drive means being operably connected to and driven by said drive means;
- said roller means being arranged in opposing pairs with the distance between the rollers in each roller pair decreasing as one proceeds down the length of said rotor means from the upstream end thereof to the downstream end thereof;
- control means for enabling the operator to simultaneously change the distance between all of the pairs of rollers whereby the number of rollers engaging a wire passing through said axial passageway and the radial position of the rollers can be varied.
4 more elements
Apparatus for reducing the cross section of rod, wire or like material comprising:
- rotor means having an axial passageway therethrough through which material can pass and about which said rotor means is rotatably mounted;
- a plurality of roller means, each including at least one roller, mounted in said rotor means with said rollers located contiguous with said axial passageway for engaging material passing therethrough;
- and drive means for rotating said rotor and accordingly said rollers about the material as the material passes through said axial passageway;
- each of said rollers being a right cylindrical roller.
1 more element
Apparatus for reducing the cross section of rod, wire or like material comprising:
- rotor means having an axial passageway therethrough through which material can pass and about which said rotor means is rotatably mounted;
- a plurality of roller means, each including at least one roller, mounted in said rotor means with said rollers located contiguous with said axial passageway for engaging material passing therethrough;
- and drive means for rotating said rotor and accordingly said rollers about the material as the material passes through said axial pasageway;
- said roller means being movably positioned in said rotor means for adjustment therein;
- sleeve means axially movably mounted about said rotor means and keyed to said rotor means for rotational movement therewith, said sleeve means including cam means operably engaging said roller means to control the position of said roller means in said rotor means;
- adjustment means for axially shifting said sleeve means with respect to said roller means to thereby move said cam means with respect to said roller means and thereby effect adjustment of the relative position of said roller means in said rotor means.
3 more elements
Apparatus for for reducing the cross section of rod, wire or like material comprising:
- rotor means having an axial passageway therethrough through which material can pass and about which said rotor means is rotatably mounted;
- a plurality of roller means, each including at least one roller, mounted in said rotor means with said rollers located contiguous with said axial passageway for engaging material passing therethrough;
- and drive means for rotating said rotor and accordingly said rollers about the material as the material passes through said axial passageway;
- said roller means being arranged in pairs diametrically opposing one another on opposite sides of said axial passageway;
- adjacent ones of said roller pairs being positioned in said rotor at different radial angles with respect to one another.
2 more elements
An apparatus for reducing the cross-section of a material passing therethrough comprising:
- a plurality of compressive rollers for applying a compressive force to a material passing through the apparatus;
- sensing means for sensing the cross-section of a material after it passes said compressive rollers and has been reduced thereby;
- roller positioning means for adjusting the relative positions of said compressive rollers to increase or decrease the position of the rollers relative to the material passing therethrough and to thereby change the extent to which said material is reduced in cross-section by said compressive rollers;
- roller position control means operably connected to said roller positioning means and to said sensing means for comparing the actual cross-section of the material as sensed by said sensing means with a predetermined desired cross-section and for controlling said roller positioning means in response to the difference between said actual cross-section and said predetermined desired cross-section;
- rate control means operably connected to said roller positioning means for controlling the rate at which said roller positioning means are adjusted in response to signals from said positioning control means, said rate control means including:
- load sensing means for sensing the pressure being applied by said compressive rollers to the material passing thereby and a first logic means for generating a rate control signal for controlling the rate of adjustment of said positioning control means as an inverse function of the pressure sensed by said load sensing means whereby when the pressure sensed is small, said positioning control means will operate at a relatively rapid rate to adjust said rollers and when the pressure is great, said positioning control means will operate at a relatively slower rate.
3 more elements
A method for reducing the cross-section of rod, wire or like material comprising:
- rolling a plurality of rollers around the material such that each define a generally helical path on the surface of the material while simultaneously moving the material with respect to the rollers in a direction opposite to that in which the generally helical paths are being generated;
- positioning the rollers at a particular radial position with respect to the center line of the material passing therethrough and at a particular angle with respect to the lateral cross-section of the material passing therethrough which position is, for each roller, a function of the desired cross-sectional reduction in the material which is sought for the material at the location of each said roller.
Dependencies are inferred from the claim text.