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A device for carrying out the choice of a strip of material in a continuous movement of the notches or holes or orifices of the needle used for purging the air
A device for carrying out the choice of a strip of material in a continuous movement of the notches or holes or orifices of the needle used for purging the air
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机译:一种用于在用于清洁空气的针的凹口或孔或孔的连续运动中选择材料条的装置
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摘要
Apparatus for selectively forming a continuously moving web (5) with apertures or holes by means of a punching mechanism consisting of a rotating die (26) and a rotating punch (14) and with venting pinholes by means of a rotating needle bar (34) and a rotating abutment (13). The die (26) or punch (14) and the needle bar (34) are secured to a common shaft (28). The punch (14) or die (26) for cooperating with the die (26) or punch (14) on the common shaft (28) is secured to a first shaft (11) on the opposite side of the web (5). The abutment (13) for cooperating with the needle bar (34) is secured to a second shaft (12) disposed on the opposite side of the web (5). The first and second shafts (11, 12) are movably mounted in pivoted mounting arms (9, 10), which can be fixed in position. A rotation of the first and second shafts (11, 12) will either move the punch (14) or die (26) into engagement with the die (26) or punch (14) or will move the needle bar (31) into engagement with the abutment (13).
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