CLOTH STRETCHING DEVICE
The present invention aims to achieve a lower cost of a negative pressure source and thereby of a cloth spreading apparatus and/or a reduction in power consumption of a negative pressure source during operation of a cloth spreading apparatus. This cloth spreading apparatus includes: a spreading unit...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The present invention aims to achieve a lower cost of a negative pressure source and thereby of a cloth spreading apparatus and/or a reduction in power consumption of a negative pressure source during operation of a cloth spreading apparatus. This cloth spreading apparatus includes: a spreading unit having spreading clamps that spread an upper-side part of a fed cloth in a right-left direction; and an ejection unit having an intermediate movable body that, while moving backward from a forward position, releases the upper-side part of the cloth that the intermediate movable body has received from the spreading clamps in the forward position and held onto an upper surface by sucking, and a belt conveyor that receives the upper-side part of the cloth having been released by the intermediate movable body and ejects the entire cloth backward. The ejection unit has: a large number of suction holes that are dispersedly disposed in the upper surface of the intermediate movable body, at least over a lateral range corresponding to a set maximum lateral width of the upper-side part of the cloth; a negative pressure source that sucks out air inside the intermediate movable body to form a negative pressure region inside the intermediate movable body; and sucking force maintaining means that maintains a sucking force of the suction holes regardless of whether the lateral width of the upper-side part of the cloth is large or small. |
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