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A rod-supply arrangement is described, comprising a guide tube containing oil and mounted in a support and a feed rod movable axially in the guide tube and coupled to a feed drive, the forward end of the feed rod carrying a rotatable coupling element, and also with an oil-supply pipe and an oil-retu

A rod-supply arrangement is described, comprising a guide tube containing oil and mounted in a support and a feed rod movable axially in the guide tube and coupled to a feed drive, the forward end of the feed rod carrying a rotatable coupling element, and also with an oil-supply pipe and an oil-return pipe. In order to obtain such an arrangement which requires little space and has a substantially simplified charging of the guide tube with always a new rod of material, in connection with which the stocking of the rods of material is not restricted to a prescribed number of existing guide tubes, provision is made for the guide tube to consist of a guide channel formed in the support and coupled with at least one oil-supply pipe and of an upwardly swingable cover extending throughout the length of the guide channel, oil being supplied through the oil-supply pipe during the feeding of the material rod in the closed guide tube of the guide channel.

대표청구항 ▼

1. A rod supply apparatus for advancing a rotatable rod of material comprising: a support having an elongated guide channel and an elongated surface adjacent said guide channel; a cover, swingably mounted on the support and extending over the full length of the guide channel, having means cooper

1. A rod supply apparatus for advancing a rotatable rod of material comprising: a support having an elongated guide channel and an elongated surface adjacent said guide channel; a cover, swingably mounted on the support and extending over the full length of the guide channel, having means cooperating with said guide channel to define an elongated guide tube and including an elongated surface mating with the elongated surface of the support, when the cover is in a closed position; means for swinging the cover between (a) a closed position in which the cover cooperates with the elongated guide channel to define an elongated guide tube and the elongated surfaces of the cover and the support are in mating engagement and (b) an open position in which said elongated surfaces are spaced apart from one another and in which a rod of material to be advanced can be fed laterally into the guide channel; feed means adjacent the elongated surface of the support to feed a rod of material laterally toward the guide channel, the elongated surface of the support being positioned to receive a rod of material which is fed laterally from the feed means to support the rod of material for lateral movement into the guide channel, when the cover is in its open position; a feed rod movable axially in the elongated guide tube having a forward end carrying a rotatable coupling element connectable to a rod of material to be advanced by the rod supply apparatus; means on the support to move the feed rod axially in the elongated guide tube to advance a rod of material connected to the rotatable coupling element; and means connected to the support supplying oil to the elongated guide tube when the cover is in its closed position, so that upon rotation and advancement of a rod of material, oil contained in said guide tube is entrained by the rotation of the rod of material to form an oil film centering said rod in said guide tube, with the mating elongated surfaces of the cover and the support forming a seal to prevent lateral leakage of oil from said guide tube. 2. A rod supply apparatus as claimed in claim 1, said apparatus further comprising return oil means connected with said means supplying oil, said return means cooperating with said means supplying oil and said guide tube to establish a closed loop oil circuit. 3. A rod supply apparatus as claimed in claim 2, said apparatus further comprising an oil collecting container beneath said guide channel, said container being connected to said return oil means. 4. A rod supply apparatus as claimed in claim 1, said guide channel having an upwardly open cross-sectional configuration, and said cover having a downwardly open cross-sectional configuration facing said guide channel. 5. A rod supply apparatus as claimed in claim 1, said guide tube having a circular cross-section. 6. A rod supply apparatus as claimed in claim 1, said means to move the feed rod comprising a vane extending through a lateral longitudinal slot in said guide tube. 7. A rod supply apparatus as claimed in claim 6, said longitudinal slot being formed between said cover and said support. 8. A rod supply apparatus as claimed in claim 6, said means to move the feed rod comprising a guide block coupled with a chain drive, said block being guided in a line extending parallel to said guide channel, and said vane being connected to said guide block. 9. A rod supply apparatus as claimed in claim 1, said feed means further comprising a rod storage platform offset laterally from said guide channel, said platform opening onto the elongated surface of the support adjacent said guide channel when said cover is opened. 10. A rod supply apparatus as claimed in claim 9, said rod storage platform comprising an oblique entry ramp fixed adjacent said guide tube, said ramp being sized to store plural feed rods. 11. A rod supply apparatus as claimed in claim 1, said guide channel comprising a first plastic track, and said cover comprising a second plastic track. 12. A rod supply apparatus as claimed in claim 11, said first and second plastic tracks being formed of polyurethane. 13. A rod supply apparatus as claimed in claim 10, said support having three section members connected one to the other, a first section member defining a chamber filled with insulating material, a second section member defining an oil supply passage and an oil discharge passage, and a third section member forming a link for a guide member for said feed rod. 14. A rod supply apparatus as claimed in claim 10, said means for swinging the cover comprising a lever fixed to said cover, and a rocker drive connected with said lever, said rocker drive being adapted to move said cover between the open and closed positions.