Jacquard shed fast adjustment device of loaded griffe mechanism

Abstract

The invention discloses a jacquard shed fast adjustment device of a loaded griffe mechanism. The device includes: inner and outer griffe mechanisms symmetrically arranged near the inner and outer sides of a left and a right wallboard, alternate shed adjusting mechanisms, shed adjusting mechanisms, as well as large and small shed output shafts. The inner and outer griffe mechanisms respectively have paired griffe frame plates, hanger rod groups and griffe groups. Each end face and each end of the large and small shed output shafts are both equipped with radial strip teeth and positioning slots. The shed adjusting mechanisms and the alternate shed adjusting mechanisms both include positioning wedge blocks, shed adjusting tooth blocks, pin shafts and upper seats. The positioning slots are respectively provided with wedged positioning wedge blocks. The radial strip teeth are respectively engaged with the shed adjusting tooth blocks. Connecting rods are respectively hinged to the vicinity of each end of the paired griffe frame plates. The upper ends of the connecting rods are all fixed with the upper seats. The upper seats, the shed adjusting tooth blocks and the positioning wedge blocks are positioned through the pin shafts and are fixed. With no need for unloading, the device disclosed in the invention can realize fast shed adjustment, and has the advantages of high adjustment precision as well as large scope.

Description

【Technical field】 [0001] The invention relates to a jacquard machine shed adjusting device, in particular to a jacquard machine shed quick adjusting device with a load lifting mechanism, belonging to the technical field of jacquard machine shed adjustment. 【Background technique】 [0002] Chinese Patent No. ZL200810222744.2 discloses a chain jacquard machine, which includes drive shafts installed on the left and right wall panels and symmetrically arranged left and right pulling (lifting) knife mechanisms. A transmission mechanism is installed symmetrically between the mechanisms, and the transmission mechanism includes a driving sprocket, a first shed adjustment sprocket, a second shed adjustment sprocket, a tensioning sprocket and a chain in a closed state. The shed adjustment sprocket and the second shed adjustment sprocket are evenly distributed with some eccentric positioning holes on the circumference along the wheel shaft, wherein the eccentric positioning holes are 3-...

AI Technical Summary

Problems solved by technology

[0004] 1) The upper and lower parts of the broach frame plate 9 are respectively connected with the lower end of the adjusting screw 7 and the broach 11 (only the top is shown in the figure), and before the shed is adjusted, turn the jacquard machine to All vertical hooks are raised to a high position to ensure that all broaches are no longer resting on any vertical hooks, that is, all broaches no longer bear the lifting force, so that the lower end of the adjusting screw 7 that reciprocates up and down can be unloaded and no longer bears the lifting force force (that is, the broach mechanism is unloaded), and all vertical hooks at the high position are hooked by the needle lifting assembly, and the heald lifting force carried by the needle lifting assembly is borne by the body of the jacquard machine. In addition, the tension pulley, Loosen the chain to release the chain transmission state, and then restore the chain transmission until the shed adjustment is completed, so there are many preparation procedures before the shed adjustment, and the machine stops for a long time;

[0005] 2) During the shed adjustment process, it is necessary to change the position of the upper seat 6 and the eccentric positioning hole 13 on the shed adjustment sprocket. The upper seat 6 must first be completely disconnected from the connected eccentric positioning hole 13 before choosing one and Another eccentric positioning hole realizes the connection, and the adjustment of the shed is time-consuming and inconvenient, and the work efficiency is low;

[0007] 4) Several eccentric positioning holes 13 are discretely distributed, and the number of eccentric positioning holes 13 is limited to 3-7. Setting too many eccentric positioning holes 13 will reduce the strength of the shed adjusting sprocket of a certain size, resulting in its use The service life is shortened, but once the number of eccentric positioning holes 13 is limited, it means that the adjustable range of the shed is limited, which cannot well meet the specific fine adjustment of the shed for different loom models, different fabric types, and different fabric weaves. Require

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