Metal spinning machine

Claim 2

A metal spinning mechanism mountable on the bed of a spinning machine and operable for securing end caps to muffler cans and the like comprising, a. a housing adapted to be mounted on said bed, b. a rotatably driven head assembly mounted in said housing for rotation about a longitudinal axis, c. said head assembly including cam track means extending in a predetermined path about said longitudinal axis, d. at least one follower arm pivotably mounted at one end on said housing and having a cam follower at the other end thereof mounted in said cam track whereby said follower arm may be caused to pivot relative to said housing in response to movement of said cam follower as said head is rotatably driven, e. a forming arm pivotably mounted intermediate the ends thereof on said follower arm and having a forming roller rotatably mounted at the inner end thereof, hydraulic drive means having one end connected to said follower arm and the other end connected to said forming arm, said drive means being operable to move said forming roller relative to said follower arm in a direction towards and away from said longitudinal axis to form the spinning metal to the required contour in use.

Claim 3

A metal spinning mechanism mounted on the bed of a spinning machine and operable for securing end caps to muffler cans and the like comprising, a. a housing adapted to be mounted on said frame, b. a rotatably driven head assembly mounted in said housing for rotation about a longitudinal axis, c. said head assembly including cam track means extending in a predetermined path about said longitudinal axis, d. first follower arm means pivotably mounted at one end on said housing and having a cam follower at the other end thereof mounted in said cam track, e. second follower arm means pivotably mounted at one end on said housing and having a cam follower at the other end thereof mounted in said cam track and circumferentially spaced from the cam follower of said first follower arm, said first and second follower arms being free to pivot relative to said housing in response to movement of said cam follower as said head is rotatably driven, f. first forming arm means pivotably mounted iNtermediate the ends thereof on said first follower arm and having a first forming roller rotatably mounted at the inner end thereof, g. second follower arm means pivotably mounted intermediate the ends thereof on said second follower arm and having a second forming roller rotatably mounted at the inner end thereof, h. first hydraulic drive means having one end secured to said first follower arm and the other end secured to the other end of said first forming arm, i. second hydraulic drive means having one end secured to said second follower arm and the other end secured to the other end of said second forming arm, j. said first and second hydraulic drive means being operable to move said forming rollers relative to said follower arms in a direction towards and away from said longitudinal axis to form the spinning metal to the required contour in use.

Claim 4

A metal spinning mechanism mounted on the bed of a spinning machine and operable for securing end caps to muffler cans and the like comprising, a. a housing adapted to be mounted on said frame, b. a rotatably driven head assembly mounted in said housing for rotation about a longitudinal axis, c. said head assembly including cam track means extending in a predetermined path about said longitudinal axis, d. first follower arm means pivotably mounted at one end on said housing and having a cam follower at the other end thereof mounted in said cam track, e. second follower arm means pivotably mounted at one end on said housing and having a cam follower at the other end thereof mounted in said cam track and circumferentially spaced from the cam follower of said first follower arm, said first and second follower arms being free to pivot relative to said housing in response to movement of said cam follower as said head is rotatably driven, f. first forming arm means pivotably mounted iNtermediate the ends thereof on said first follower arm and having a first forming roller rotatably mounted at the inner end thereof, g. second follower arm means pivotably mounted intermediate the ends thereof on said second follower arm and having a second forming roller rotatably mounted at the inner end thereof, h. first hydraulic drive means having one end secured to said first follower arm and the other end secured to the other end of said first forming arm, i. second hydraulic drive means having one end secured to said second follower arm and the other end secured to the other end of said second forming arm, j. said first and second hydraulic drive means being operable to move said forming rollers relative to said follower arms in a direction towards and away from said longitudinal axis to form the spinning metal to the required contour in use.

Claim 5

A metal spinning machine for securing end caps to muffler cans and the like comprising, a. a bed, b. at least two housings adapted to be mounted on said bed, one of said housings being slidably mounted on said bed relative to the other, c. means for moving said slidably mounted housing to and fro on said bed, d. a rotatably driven head assembly mounted in each of said housings for rotation about a longitudinal axis, e. said head assembly including, cam track means extending in a predetermined path about said longitudinal axis, f. first follower arm means pivotably mounted at one end on said housing and having a cam follower at the other end thereof mounted in said cam track, g. second follower arm means pivotably mounted at one end on said housing and having a cam follower at the other end thereof mounted in said cam track and circumferentially spaced from the cam follower of said first follower arm, said first and second follower arms being free to pivot relative to said housing in response to movement of said cam follower as said head is rotatably driven, h. first forming arm means pivotably mounted intermediate the ends thereof on said first follower arm and having a first forming roller rotatably mounted at the inner end thereof, i. second follower arm means pivotably mounted intermediate the ends thereof on said second follower arm and having a second forming roller rotatably mounted at the inner end thereof, j. first hydraulic drive means having one end secured to said first follower arm and the other end secured to the other end of said second forming arm, K. second hydraulic drive means having one end secured to said second follower arm and the other end secured to the other end of said second forming arm, l. said first and second hydraulic drive means being operable to move said forming rollers relative to said follower arms in a direction towards and away from said longitudinal axis to form the spinning metal to the required contour in use.

Claim 6

A metal spinning machine for securing end caps to muffler cans and the like comprising, a. a bed, b. at least two housings adapted to be mounted on said bed, one of said housings being slidably mounted on said bed relative to the other, c. means for moving said slidably mounted housing to and fro on said bed, d. a rotatably driven head assembly mounted in each of said housings for rotation about a longitudinal axis, e. said head assembly including, cam track means extending in a predetermined path about said longitudinal axis, f. first follower arm means pivotably mounted at one end on said housing and having a cam follower at the other end thereof mounted in said cam track, g. second follower arm means pivotably mounted at one end on said housing and having a cam follower at the other end thereof mounted in said cam track and circumferentially spaced from the cam follower of said first follower arm, said first and second follower arms being free to pivot relative to said housing in response to movement of said cam follower as said head is rotatably driven, h. first forming arm means pivotably mounted intermediate the ends thereof on said first follower arm and having a first forming roller rotatably mounted at the inner end thereof, i. second follower arm means pivotably mounted intermediate the ends thereof on said second follower arm and having a second forming roller rotatably mounted at the inner end thereof, j. first hydraulic drive means having one end secured to said first follower arm and the other end secured to the other end of said second forming arm, K. second hydraulic drive means having one end secured to said second follower arm and the other end secured to the other end of said second forming arm, l. said first and second hydraulic drive means being operable to move said forming rollers relative to said follower arms in a direction towards and away from said longitudinal axis to form the spinning metal to the required contour in use.

Claim 7

A metal spinning mechanism as claimed in claim 1, wherein said follower arm means includes a hydraulic drive mounting arm projecting outwardly from the pivotally mounted end of said follower arm substantially at right angles thereto and integrally connected thereto, said hydraulic drive means being mounted on said mounting arm substantially at right angles to the forming arm to which it is connected such that the forming arm may be pivoted by the reciprocating action of said drive means.

Claim 8

A metal spinning mechanism as claimed in claim 2, wherein said follower arm means includes a hydraulic drive mounting arm projecting outwardly from the pivotally mounted end of said follower arm substantially at right angles thereto and integrally connected thereto, said hydraulic drive means being mounted on said mounting arm substantially at right angles to the forming arm to which it is connected such that the forming arm may be pivoted by the reciprocating action of said drive means.

Claim 9

A metal spinning mechanism as claimed in claim 3, wherein said follower arm means includes a hydraulic drive mountiNg arm projecting outwardly from the pivotally mounted end of said follower arm substantially at right angles thereto and integrally connected thereto, said hydraulic drive means being mounted on said mounting arm substantially at right angles to the forming arm to which it is connected such that the forming arm may be pivoted by the reciprocating action of said drive means.

Claim 10

A metal spinning mechanism as claimed in claim 1, including control means operable in response to pivoting movement of said forming arm in a direction towards said forming head so as to control the operation of said drive means to limit the inward movement of said forming roller towards said forming head.

Claim 11

A metal spinning mechanism as claimed in claim 4, wherein said hydraulic drive means comprises a double-acting hydraulic cylinder mounted on said support arm and having a reciprocating drive shaft projecting outwardly therefrom, said drive shaft being pivotally mounted at the point at which it is secured to said forming arm such that reciprocation of said drive shaft causes said forming arm to pivot relative to said follower arm.