CN2277412Y

CN2277412Y - Needle selection device for computer needle-selecting knitting machine

Info

Publication number: CN2277412Y
Application number: CN 96232020
Authority: CN
Inventors: 黄强
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-06-05
Filing date: 1996-06-05
Publication date: 1998-04-01
Anticipated expiration: 2006-06-05

Abstract

The utility model relates to a needle selection device for a computer needle-selecting knitting machine, which is composed of a transducing component, a needle selection knife, etc. The transducing component is composed of a base and a piezoelectric plate. The utility model is characterized in that the piezoelectric transducing assembly is formed by the superimposition of more than two pieces of piezoelectric plates, and the front end of the transducing component is embedded with the front end of the needle selection knife. The rear end of the transducing assembly is clamped or fixed. The utility model has the advantages of the simple structure, enlarged vibrational energy, and the increase of the effective amplitude and operating force moment.

Description

The needle selecting device of computer needle selection knitting machine

The utility model relates to the improvement to the needle selecting device of computer knitted machine.

Existing computer knitted machine to the flower type control be by knitting needle whether whether the versicolor line of knitting of the incompatible control of extension inweaves.Knitting needle is hung the control of closing to be finished by needle selecting device.Chinese patent CN89107642 has provided the classical needle selecting device that utilizes the dull and stereotyped formation of piezoelectric ceramics.The piezoelectric ceramics flat board be on metal substrate the one side or two faces scribble the piezoelectric ceramics material, in this technical scheme, the rearward end of piezoelectricity flat board supports (fixing) rotationally in the groove of support or support, the centre position of piezoelectricity flat board is clamped on rotating support or the support, the leading section of piezoelectricity flat board is rabbeted a needle selection cutter, when the piezoelectricity flat board is energized, because the effect of piezoelectric ceramics, the piezoelectricity flat board bends right and left with the variation of polarity of voltage, drives the conversion needle selection action to the left or to the right fast of needle selection cutter.But this scheme still has the loss of energy, has reduced effective amplitude.In addition, vibration instability under high frequency, poor performance.If set about from the area that enlarges the piezoelectricity flat board, be expected to increase energy as increasing width, its volume limits to some extent on the loom but the needle selection device is contained in.And be difficult for making, and fixing needle selecting device such as the CN95241179 in rear end, 9521180,96231246, though have characteristics on many structures, also all there is above-mentioned weakness.

The purpose of this utility model is: provide a kind of and can overcome above-mentioned deficiency, increase needle selection cutter energy, increase the operational forces distance, improve effective amplitude, make the piezoelectric type needle selecting device can be suitable for scope widely, better reliability.And can be under high frequency and wideer frequency range condition the board-like needle selecting device of voltage level of steady operation.

The utility model is achieved in that a kind of needle selecting device of computer knitted machine, the transduction assembly that is made of pedestal, piezoelectricity flat board, needle selection cutter etc. are formed, it is characterized in that the piezoelectric energy-conversion assembly coincides with the piezoelectricity flat board more than two forms, the front end of transduction assembly and the interlocking of needle selection cutter, its rear end clamping or fixing.

Further improvement of the utility model is that voltage level front edge of board portion rabbets a rigid body and rabbets the needle selection cutter again.

Characteristics of the present utility model are: simple structure, vibrational energy increases, effective amplitude increases, work moment increases, compared with the prior art, the piezoelectric patches needle selecting device that the utility model provides is taken into account dynamometer with frequency and is measured moment, effective operating frequency range, and these three main performances of effective amplitude improve 80%, 60%, 35% respectively.Under high frequency, intermediate frequency, low frequency, all can stably work, satisfy the supporting use of multiple loom, the volume of needle selection device does not increase, and also former piezoelectricity flat board can be made miniature piezoelectric needle selection device after the length and width direction reduces significantly, can satisfy the restricted occasion in space or installation site.Simultaneously, make the transduction assembly of bigger moment, be used for the bodkin needle selection, directly card stripping etc. needs bigger moment, high workload frequency more, more occasion such as large amplitude.Can conveniently install and use and safeguard.

The utility model is described in further detail below in conjunction with accompanying drawing with by embodiment:

Fig. 1 is the utility model sectional structure schematic diagram

Fig. 2 is the utility model perspective view

Fig. 3 is the utility model rear end supporting arrangement schematic diagram

Fig. 4,5,6 is the utility model clamping rigid body holding piece voltage level plate structure schematic diagram

Fig. 7 always dresses up the structural representation of a pedestal for the utility model, in adorn 8 selection pieces (or 16).

Fig. 8 for the utility model with the direct fixing embodiment schematic diagram of piezoelectric energy-conversion device of pedestal

Fig. 9 is the enforcement illustration with middle rotating clamping device of the present utility model

As Figure 1-3, comprise pedestal 1, the dull and stereotyped 2A of piezoelectricity, the structures such as the support end 2B of piezoelectricity flat board Become, the front end of piezoelectricity flat board is embedded in needle selecting knife 5 jags, and interlayer 2D is arranged in the flat board, pacifies at leading section The rigid body 2c that dress spheroid or cylinder consist of, needle selecting knife is around pivot swinging. The piezoelectricity flat board also can be to contain A slice simultaneously is coated with the sheet metal of pottery, also can two or three coincides, and supports the rearward end of end Fix with holder 4, for example bonding or closely cooperating with groove and tenon. And holder is on pedestal Fixing can adopt multiple fixed form, for example be spirally connected. By screw 7 holder is fixed on pedestal On, can regulate the glacing flatness piezoelectricity flat board and needle selecting knife by the slit on the pedestal or screw 8 etc. Deng. The rear end of piezoelectric energy-conversion assembly is fixed on supported end 3 among Fig. 2,3, and the rear end of supported end prolongs solid Fix on the pedestal 1, pedestal bearing is provided with apparatus for adjusting position 4.

Fig. 4-6 is the coincide various embodiments of structure of piezoelectricity flat board, and in following examples, front end is by the clamping of injection moulding rigid body.

In Fig. 4 a two voltage level front edge of board portions affixed after, embed rigid body again.Two dull and stereotyped 2A of piezoelectricity are trapezoidal among Fig. 4 b, also can be other polygonal shape.

Rabbet a rigid body respectively and rabbet the needle selection cutter again at Fig. 5 a, b, two piezoelectricity flat boards of c.The front end of two piezoelectricity flat boards and rigid body scarf have breach among Fig. 5 a, and a slice breach is opened at first position, and the breach of another sheet is opened at second position, so corresponding the protrusion imbedded rigid body post 2c in two.

In Fig. 5 c, two piezoelectricity flat boards insert respectively in the rigid body groove to be rabbeted with the fork-tail of needle selection cutter extension again.In Fig. 5 b, two piezoelectricity flat boards insert rigid body 2C1, the 2C2 of separation respectively, and two rigid bodies become a whole ball to insert the needle selection cutter in the lump.

In Fig. 6 a, provided coinciding of three piezoelectricity flat boards, two coincide in that side pressure level plate is differentiated in the longitudinal direction.Two fixing backs of voltage level front edge of board embed the needle selection cutter among Fig. 6 b.

8 selection pieces have been installed in the pedestal among Fig. 7, yet the demand of looking different looms can be installed the piezoelectricity plain film of 2-20 sheet equality, for example, 4,8,12,16 all is selections of using always.Among one Fig. 7, needle selection cutter 5 swings up and down around pivot 7 under selection piece 2 drives, 6 is the cover plate of needle selection cutter, on the rectangle cutter 11 that exposes the needle selection cutter is arranged, grip block 3 is made generally in corresponding with clamping multi-disc needle selection blade, 8 for installing and fixing the parts of seat on the pedestal, screw 12 also can be used for regulating the depth of parallelism of selection piece.Introduce supply socket on the pedestal, be used to supply with each piezoelectricity flat board with controllable direct current power supply.

Piezoelectric patches also can have various embodiments from the support end that cramping body extend to constitute, and supports end available metal bar, post, sheet to weld with the piezoelectric patches rear end or otherwise affixed, and this bonding jumper, post, sheet end are spirally connected with pedestal or bonding, riveted joint etc. again.

Fig. 8 is with the direct fixing embodiment schematic diagram of piezoelectric energy-conversion device on the pedestal 1

Among the embodiment shown in Figure 9, the centre of piezoelectricity flat board is provided with rotating clamp column 10, and the structure of clamp column has multiple choices.

Claims

1. the needle selecting device of a computer needle selection knitting machine, the transduction assembly that is made of pedestal, piezoelectricity flat board, needle selection cutter etc. are formed, it is characterized in that the piezoelectric energy-conversion assembly coincides with the piezoelectricity flat board more than two forms, the front end of transduction assembly and the interlocking of needle selection cutter, its rear end clamping or fixing.

2. by the described needle selecting device of claim 1, it is characterized in that two voltage level front edge of board portions interlocking rigid bodies rabbet the needle selection cutter again.

3. by claim 1,2 described needle selecting devices, can be to contain the sheet metal that a slice simultaneously is coated with piezoelectric ceramics in the described two piezoelectricity flat boards of its feature.

4. by claim 1,2 described needle selecting devices, it is characterized in that two piezoelectricity flat boards that coincide rabbet a rigid body respectively and be embedded in the needle selection cutter again.

5. by the described needle selecting device of claim 4, it is characterized in that rabbeting and have two grooves in the rigid body and rabbet two piezoelectric patches respectively.

6. by claim 1,2 described needle selecting devices, it is characterized in that rabbeting rigid body again after two voltage level front edge of board are fixed.

7. by claim 1,2 described needle selecting devices, it is characterized in that the piezoelectricity flat board is polygon.

8. by claim 1,2 described needle selecting devices, it is characterized in that two differentiated in the longitudinal direction coinciding of piezoelectricity flat board.

9. by claim 1,2 described needle selecting devices, it is characterized in that the rear end of piezoelectric energy-conversion assembly is fixed on supported end (3), the rear end prolongation of supported end is fixed on the pedestal (1), and pedestal bearing is provided with apparatus for adjusting position (4).

10. by claim 1,2 described needle selecting devices, it is characterized in that fixedly the supported end of piezoelectric energy-conversion assembly (3) is by holding clamp post (2B) clamping piezoelectric energy-conversion assembly.

11. by claim 1,2 described needle selecting devices, it is characterized in that being shaped on the pedestal rear end holder, piezoelectric element directly affixed present on.

12., it is characterized in that the centre of piezoelectric energy-conversion assembly is fixed by rotating clamp column by claim 1,2 described needle selecting devices.