| 摘要 |
PCT No. PCT/SE84/00141 Sec. 371 Date Dec. 13, 1984 Sec. 102(e) Date Dec. 13, 1984 PCT Filed Apr. 13, 1984 PCT Pub. No. WO84/04082 PCT Pub. Date Oct. 25, 1984.The present invention relates to a method and apparatus for producing spacers or blocks preferably for use in pallet structures as supporting elements for the deck and/or as blocks between load deck and stringers, said blocks consisting of sleeves made from sheet metal. An elongate, substantially rectangular sheet metal blank (11) is fed into a nip (7) formed by at least two corrugated rolls (1, 2) with its main plane inclined to the plane passing through the axes of the rolls. The front end (17) of the blank (11) is fixed in a groove (12) in the surface of the roll (1). When the rolls (1, 2) are rotated, the blank (11) is shaped in the roll nip (7) and is rolled on to the roll (1). After the rolls (1, 2) have rotated at least one revolution, the ready-shaped block is withdrawn or pushed from the roll (1) in an axial direction. |
