CN203113008U - Piezoelectric-driven, harness-free and retracting spring acquard needle selection mechanism - Google Patents

Abstract

A piezoelectric-driven, harness-free and retracting spring jacquard needle selection mechanism belongs to the technical field of design and manufacture of jacquard needle selection mechanisms. A piezoelectric-driven wafer mounting body is provided with a piezoelectric-driven wafer; an outer jacquard needle is arranged in the chute of a guide rail; an inner jacquard needle is mounted in the outer jacquard needle; and the top of the inner jacquard needle is in contact with the piezoelectric-driven wafer. According to the utility model, the inner jacquard needle and the outer jacquard needle are dynamically connected together with a pin on the inner jacquard needle and a pin hole in the outer jacquard needle to form a composite heddle; and the piezoelectric-driven wafer serves as a driving element. As the piezoelectric-driven wafer serves as the driving element, the needle selection mechanism has the advantages that the action frequency is high and the working efficiency is improved; more obviously, the machine structure is compact, lots of vulnerable components are omitted, the size of the occupied space is greatly reduced, and meanwhile, the failure rate is greatly lowered; and due to absence of a retracting force, the heddle raising power is greatly reduced and the power consumption is lowered.

Description

Piezoelectric Driving, no harness cord, no return spring jacquard needle board

Technical field

The utility model belongs to design and the manufacturing technology field of jacquard needle board.

Background technology

The selecting mechanism that uses on the present jacquard, all be to adopt electromagnet as driving element, jacquard will just can be finished the drive movement of the warp by a series of actions of colluding parts such as band, pulley, harness cord, heald and return spring up and down when work, form opening.The volume of electromagnet own is bigger, in addition the knitting needle number more for a long time, the parts such as band, pulley, harness cord, heald and return spring etc. that collude up and down that dispose increase, make the volume of jacquard huger with regard to what become, and all belong to consumable accessory, the fault rate height, the maintenance trouble, influence is produced.Shedding mechanism will overcome hundreds of kilograms the comprehensive power of returning in addition, therefore will consume a large amount of power.

Summary of the invention

At the above-mentioned condition of pleading for mercy for, the purpose of this utility model provide a kind of simple in structure, volume is small and exquisite and the jacquard needle board of high efficiency, solves the problems that existing mechanism exists.

The utility model is to address the above problem the technical scheme of taking to be: a Piezoelectric Driving wafer fixing body is arranged on the top of guide rail.Have the Piezoelectric Driving wafer at Piezoelectric Driving wafer fixing body.Needle outside having in the chute of guide rail is equipped with interior needle outside in the needle.The top of interior needle contacts with the Piezoelectric Driving wafer.On the top of interior needle one pin is arranged.The bottom of needle has the comprehensive bar of a heald frame to penetrate the hole outside.A pin hole is arranged at the top of needle outside, and pin is embedded in the pin hole.Have hook on the Piezoelectric Driving wafer fixing body.During work, inside and outside needle forms harness eye when not producing relative motion.Warp thread is through in the harness eye.Outer needle of the present utility model is the flat tube shape, and interior needle is sheet, and interior needle is sleeved in the outer needle, and inside and outside needle links together dynamically by the pin hole on the pin on the interior needle and the outer needle, constitutes a compound heddle (heald).By the Piezoelectric Driving wafer as driving element.When inside and outside needle did not have relative motion, inside and outside needle formed harness eye, otherwise, then can not form harness eye.When selecting mechanism drive heald frame was up and down reciprocatingly combined the bar motion, outer needle penetrated the hole by the comprehensive bar of heald frame and links to each other with the comprehensive bar of heald frame, and outer needle is followed one and played motion.When comprehensive bar moved downward from peak, outer needle moved downward with it.At this moment, if the energising of Piezoelectric Driving wafer, the Piezoelectric Driving wafer produces flexural deformation, and swing to the right the lower end, needle upper end swing left in promoting, and pin is deviate from the pin hole from outer needle.Simultaneously, interior needle upper end hangs on the hook, and interior needle does not then move downward with needle, and interior needle produces relative motion, can not form harness eye, and top line does not move downward with it; Otherwise, if Piezoelectric Driving wafer no power, the Piezoelectric Driving wafer does not produce flexural deformation, and interior needle upper end does not produce swing, and pin can not be deviate from the hole from outer needle, also hang not on hook, interior needle moves downward with outer needle, and inside and outside needle does not have relative motion, forms harness eye, the top line that penetrates harness eye moves downward with it, forms opening.When comprehensive bar moved upward from minimum point, inside and outside needle moved upward with it, and warp thread is got back to peak by self elastic force, finished an action samsara.The utility model is owing to adopt the Piezoelectric Driving wafer as driving element, and its advantage is the operating frequency height, has improved operating efficiency.More outstanding is the compactness that housing construction is become, and has saved a large amount of easily worn parts, has dwindled shared spatial volume greatly, and the simultaneous faults rate reduces significantly.Because do not return comprehensive power, shedding power reduces greatly, has reduced power consumption again again.

Description of drawings

Fig. 1 is the utility model side sectional view

1-Piezoelectric Driving wafer fixing body 2-Piezoelectric Driving wafer 3-hook 4-guide rail

Fig. 2 is the utility model front section view

Needle 8-harness eye 9-heald frame is combined bar and is penetrated the hole in the outer needle 7-of 5-pin 6-

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing; One Piezoelectric Driving wafer fixing body 1 is arranged on the top of guide rail 4.Have Piezoelectric Driving wafer 2 at Piezoelectric Driving wafer fixing body.Needle 6 outside in the chute of guide rail, having, needle 7 in being equipped with in the needle outside.The top of interior needle contacts with the Piezoelectric Driving wafer.One pin 5 is arranged on the top of interior needle.The bottom of needle has the comprehensive bar of a heald frame to penetrate hole 9 outside.A pin hole is arranged at the top of needle outside, and pin is embedded in the pin hole.Have hook 3 on the Piezoelectric Driving wafer fixing body.During work, inside and outside needle forms harness eye 8 when not producing relative motion.

Claims (1)

1. Piezoelectric Driving, no harness cord, no return spring jacquard needle board is characterized in that; One Piezoelectric Driving wafer fixing body (1) is arranged on the top of guide rail (4), have Piezoelectric Driving wafer (2) at Piezoelectric Driving wafer fixing body, needle (6) outside in the chute of guide rail, having, interior needle (7) is housed in the needle outside, one pin (5) is arranged on the top of interior needle, the bottom of needle has the comprehensive bar of a heald frame to penetrate hole (9) outside, and a pin hole is arranged at the top of needle outside, has hook (3) on the Piezoelectric Driving wafer fixing body.

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