High-speed heavy-duty Jacquard shedding device

Abstract

The invention discloses a high-speed and heavy-duty jacquard opening device. Two sets of lifting knives and two pairs of lifting knife holders alternately move through the motion conversion between the eccentric wheel shaft and the swing mechanism. The sets of eccentric wheel linkage mechanisms are located on both sides of the eccentric wheel shaft, and the adjacent two sets of eccentric wheel linkage mechanisms include inner and outer eccentric wheels with equal eccentricity and symmetrical installation, and inner and outer connecting rods separately arranged on the eccentric wheels; The mechanism includes four pendulum shafts symmetrically arranged on the side wall panels. Each pendulum shaft is provided with a crank and a double-headed rocker arm; The crank is hinged, and the same direction ends of the two tool holders in the wall panels on either side are hinged with the corresponding single double-headed rocker arm through a vertical connecting rod. The program has a large radial extension space for the tool holder and a small limit on the arrangement of the tool in the longitudinal direction, so the length of the tool can be shortened, so as to achieve the purpose of small deformation of the tool under high-speed and heavy-load conditions.

Description

[0001] 【Technical field】 [0002] The invention relates to a jacquard shedding device, in particular to a high-speed and heavy-load jacquard shedding device, belonging to the technical field of jacquard machine shedding. [0003] 【Background technique】 [0004] In the prior art, when increasing the specification of jacquard needles, it is necessary to correspondingly increase the length of the lifting knife (that is, the weft length after installation). The disadvantage is that with the increase of the length of the lifting knife, the The load increases correspondingly, and the lifting knife deforms greatly. The production practice reflects that there are many weaving defects in jacquard weaving, and it is difficult to adapt to heavy load and high-speed operation; The power consumption is small when working, but because the push and pull of the reverse connecting rod are transmitted to the lift mechanism during the movement process, the transmission line is long, which finally ...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, when increasing the specification of jacquard needles, it is necessary to correspondingly increase the length of the lifting knife (that is, the weft length after installation). The disadvantage is that with the increase of the length of the lifting knife, the The load increases correspondingly, and the lifting knife deforms greatly. The production practice reflects that there are many weaving defects in jacquard weaving, and it is difficult to adapt to heavy load and high-speed operation; The power consumption is small when working, but because the push and pull of the reverse connecting rod are transmitted to the lift mechanism during the movement process, the transmission line is long, which finally reflects the lack of high power consumption when the lift knife is reciprocating and lifting, so it is still difficult Suitable for heavy load and high speed operation

[0005] In view of the above analysis, the structure of the existing jacquard opening device needs to be improved urgently

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