Chained jacquard shedding device

Abstract

The invention discloses a chained jacquard shedding device. The chained jacquard shedding device comprises a main transmission shaft provided with a pair of driving chain wheels, inner and outer griffe rack pairs and inner and outer griffe groups, wherein both ends of the inner and outer griffe rack groups are directly rigidly fixed on the inner and outer griffe rack pairs, single driven hub assemblies are respectively installed on left and right wallboards, the driven chain wheels are in transmission connection with the corresponding driving chain wheels through closed chains, the inner ends and outer ends of the driven hub assemblies are all provided with inside and outside upper seats with 180 DEG difference connected to the inner and outer griffe groups respectively through inner and outer link assemblies, the inner and outer link assemblies are respectively composed of a pair of inner and outer links and a pair of inner and outer lower seats hinged to the inner and outer griffe rack pairs which are in connection with each other, sliding pieces which are separately arranged nearby the ends of the inner griffe rack pair and the outer griffe rack pair in the same direction reversely move along a guide column so as to form guide mechanisms; and the guide column is fixed on each wallboard. The guide mechanisms guide the inner and outer griffe rack pairs and the inner and outer griffe groups to move reversely and vertically.

Description

【Technical field】 [0001] The invention relates to a jacquard shedding device, in particular to a chain jacquard shedding device, and belongs to the technical field of jacquard shedding weaving. 【Background technique】 [0002] Currently, there are many jacquard shedding devices widely used in the market, such as four-bar linkage mechanism with eccentric wheel, chain double sprocket transmission mechanism, etc., and the working principles are all the same. Now take the jacquard opening device driven by chain double sprockets as an example, its working principle is as follows: see image 3 As shown, the main transmission shaft 8a drives the first shed wheel shaft 5a and the second shed wheel shaft 4a to make relative circular motions through the driving sprocket 7a and the closed chain 6a, and then drives the two sets of pull rod upper seat assemblies 3a to do eccentric rotary motion, and the broach The shelf assembly 2a and the broach 1a reciprocate up and down together. [0...

AI Technical Summary

Problems solved by technology

[0003] Due to the complex transmission link, many moving parts and high manufacturing cost, the above structure is suitable for high-speed and heavy-duty jacquard weaving industry, while users who weave medium-sized and light-weight jacquard fabrics report that the economy is poor. Correspondingly, it is difficult for users who produce these fabrics Batches are popular, therefore, users in the jacquard weaving industry with medium and low speeds and medium and light loads need to configure economical jacquard shedding devices

[0004] In addition, the shedding device of the existing chain jacquard machine is also difficult to popularize and configure in terms of jacquard fabric proofing machines

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