Fully automatic upsetting machine

Claim 2

A fully automatic upsetting machine, comprising a frame, a pressing mechanism having a ram, the stroke of which is freely adjustable, an upsetting die, a feeding mechanism for the intermittent feeding of bar material along a path of travel, a cutting mechanism arranged in the path of travel of the bar material, means associated with said cutting mechanism for cutting the bar material and arranged to receive signals for selecting the lengths of bar material cut for cutting predetermined lengths and for cutting the leading and trailing ends of the bar material at lengths other than the predetermined lengths, said means associated with said cutting mechanism arranged to sense lengths cut at less than the predetermined lengths, first transfer means for moving the cut predetermined lengths to said upsetting die, a second transfer means for collecting lengths of the bar material cut at other than the predetermined lengths, said feeding mechanism and said first transfer means mounted on said frame, a rotating shaft mounted on said frame and having cams thereon in operative association with said feeding mechanism and said first transfer means for driving said feeding mechanism and said first transfer means synchronously at high speed, and a single drive shaft arranged to drive said rotating shaft.

Claim 3

A fully automatic upsetting machine, as set forth in claim 1, wherein a punch is mounted at one end of said ram and is arranged to be inserted into said upsetting die, said ram having an internally threaded portion open at its end opposite the end mounting said punch, a slide extending in the axial direction of said ram and mounting said ram so that it is movable only in its axial direction, and externally threaded member stationarily mounted relative to said slide, said externally threaded member being rotatable and disposed in threaded engagement with the internally threaded portion of said ram so that said ram can be displaced axially in said slide by rotating said externally threaded member.

Claim 4

A fully automatic upsetting machine, as set forth in claim 1, wherein said feeding mechanism comprises a pair of feed rollers arranged to clamp, support and guide the bar material in an elastic manner, a first shaft arranged to mount and rotate one of said feed rollers, a second shaft arranged to drive said first shaft, a first link and lever arrangement connected to said second shaft, a guide lever, a stroke adjusting Screw fixed in said guide lever and rotatable in the longitudinal direction thereof, a slider screwed to said adjusting screw and slidable in the longitudinal direction of said guide lever, means connecting said first link and lever arrangement to said slider, and a unidirectional cam shaft connecting said second shaft to said first link and lever arrangement.

Claim 5

A fully automatic upsetting machine, as set forth in claim 1, wherein said cutting mechanism comprises a blade, a circular hole edge in said blade arranged to be lined with and to receive the bar material as it is fed by said feeding mechanism, the axis of said upsetting die spaced laterally from the axis of the path of travel of the bar material fed by said feeding mechanism, means associated with said blade for displacing it perpendicularly from the axis of the path of travel of the bar material to a position with the axis of the circular hole edge spaced from and aligned with the axis of said upsetting die, said means for displacing said blade including means for returning said blade so that its circular hole edge is aligned with the path of travel of the bar material.

Claim 6

A fully automatic upsetting machine, as set forth in claim 1, wherein said means associated with said cutting mechanism comprises a stopper mechanism pivotally mounted in the path of the bar material and located downstream from the circular hole edge in said blade, said stopper mechanism arranged to receive selective signals for pivotally positioning it in the path of the bar material, said stopper mechanism having a first abutting surface for establishing the predetermined cut length of the bar material when the bar material contacts said first abutting surface, spring means associated with said first abutting surface for biasing it in the direction counter to the direction of movement of the bar material by said feeding mechanism so that when a predetermined length is cut said biasing action is overcome, switch means associated with said first abutting surface and being actuated when said spring means are overcome in response to the cutting of a predetermined length of the bar material, said stopper mechanism having a second abutting surface thereon arranged in response to a signal to be displaced into the path of the bar material for cutting a length greater than the predetermined length, and said second transfer means includes a take-out chute arranged to be opened to receive a length of the bar material other than a predetermined length when said second abutting surface is aligned in the path of the bar material.

Claim 7

A fully automatic upsetting machine, as set forth in claim 1, wherein said first transfer means comprises a pair of right and left transfer fingers positioned for elastically gripping a predetermined cut length of the bar material, and means associated with said transfer fingers for rendering them inoperative when said cutting mechanism cuts a length of the bar material which is other than the predetermined length.

Claim 8

A fully automatic upsetting machine, comprising a frame, a pressing mechanism having a ram, the stroke of which is freely adjustable, an upsetting die, a feeding mechanism for the intermittent feeding of bar material along a path of travel, a cutting mechanism arranged in the path of travel of the bar material, means associated with said cutting mechanism for cutting the bar material and arranged to receive signals for selecting the lengths of bar material cut for cutting predetermined lengths and for cutting the leading and trailing ends of the bar material at lengths other than the predetermined lengths, said means associated with said cutting mechanism arranged to sense lengths cut at less than the predetermined lengths, first transfer means for moving the cut predetermined lengths to said upsetting die, a second transfer means for collecting lengths of the bar material cut at other than the predetermined lengths, said feeding mechanism and said first transfer means mounted on said frame, a roTating shaft mounted on said frame and having cams thereon in operative association with said feeding mechanisms and said first transfer means for driving said feeding mechanisms and said first transfer means synchronously at high speed, a single drive shaft arranged to drive said rotating shaft, a pusher pin arranged to displace predetermined cut lengths of bar material from said cutting mechanism, a knock-out pin arranged to displace an upset formed article from said upsetting die, said first transfer means includes a slide and transfer members mounted on said slide for moving predetermined cut lengths of the bar material from said cutting mechanism to said upsetting die, and means disposed between said cams on said rotating shaft and said pusher pin, said knock-out pin and said slide for controlling the stroke of each.

Claim 9

A fully automatic upsetting machine, comprising a frame, a pressing mechanism having a ram, the stroke of which is freely adjustable, an upsetting die, a feeding mechanism for the intermittent feeding of bar material along a path of travel, a cutting mechanism arranged in the path of travel of the bar material, means associated with said cutting mechanism for cutting the bar material and arranged to receive signals for selecting the lengths of bar material cut for cutting predetermined lengths and for cutting the leading and trailing ends of the bar material at lengths other than the predetermined lengths, said means associated with said cutting mechanism arranged to sense lengths cut at less than the predetermined lengths, first transfer means for moving the cut predetermined lengths to said upsetting die, a second transfer means for collecting lengths of the bar material cut at other than the predetermined lengths, said feeding mechanism and said first transfer means mounted on said frame, a roTating shaft mounted on said frame and having cams thereon in operative association with said feeding mechanisms and said first transfer means for driving said feeding mechanisms and said first transfer means synchronously at high speed, a single drive shaft arranged to drive said rotating shaft, a pusher pin arranged to displace predetermined cut lengths of bar material from said cutting mechanism, a knock-out pin arranged to displace an upset formed article from said upsetting die, said first transfer means includes a slide and transfer members mounted on said slide for moving predetermined cut lengths of the bar material from said cutting mechanism to said upsetting die, and means disposed between said cams on said rotating shaft and said pusher pin, said knock-out pin and said slide for controlling the stroke of each.

Claim 10

A fully automatic upsetting machine, comprising a frame, a pressing mechanism having a ram, the stroke of which is freely adjustable, an upsetting die, a feeding mechanism for the intermittent feeding of bar material along a path of travel, a cutting mechanism arranged in the path of travel of the bar material, means associated with said cutting mechanism

Claim 11

A fully automatic upsetting machine, comprising a frame, a pressing mechanism having a ram, the stroke of which is freely adjustable, an upsetting die, a feeding mechanism for the intermittent feeding of bar material along a path of travel, a cutting mechanism arranged in the path of travel of the bar material, means associated with said cutting mechanism