CN102358987A

CN102358987A - Needle fixing device of needle selector

Info

Publication number: CN102358987A
Application number: CN2011102868655A
Authority: CN
Inventors: 刘相果; 廖建中; 蹇胜勇; 徐莉萍
Original assignee: CHONGQING SHENGPU ANGKAI TECHNOLOGY Co Ltd
Current assignee: CHONGQING SHENGPU ANGKAI TECHNOLOGY Co Ltd
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2012-02-22
Anticipated expiration: 2031-09-26
Also published as: CN102358987B

Abstract

The invention relates to a needle fixing device of a needle selector. The needle fixing device comprises a needle, a needle clamp and a connecting end (6) fixed to a driving sheet, wherein the needle is composed of a needle head (1) and a needle rod (2); the needle clamp is composed of a middle plate (4) and an external cover plate (5); a clamp head (3) convenient for the insertion of the needle is arranged on the middle plate (4); the tail of the needle rod (2) is a reed (7) capable of generating elastic displacement, and the width of the reed is smaller than that of the needle rod, thereby leaving the space for the elastic displacement; a reed gap (9) and a clamping gap (8) are formed on the reed (7); a bulge (10) for limiting the needle position is formed in the clamp head (3) on the middle plate (4); and the clamping gap (8) is used for pressing the bulge (10) into the gap under the prestress action, thus the needle is fixed in the clamp head (3). The needle fixing device of the needle selector has the advantages of convenience in assembly, disassembly and replacement, high positioning precision and multiple insertion and pulling numbers, and the middle plate is easier to process and manufacture.

Description

The needle fixation device of needle selection device

Technical field

The invention belongs to textile machine, particularly a kind of needle fixation device of needle selection device

Background technology

At present, the needle fixation device of known needle selection device has many kinds, has syringe needle and chuck to fuse, and also has a kind ofly through the alignment pin locking pin, and to also have a kind of syringe needle be the device through chuck band tongue chucking.Syringe needle and chuck are connected as a single entity, and can't change impaired syringe needle, cause unnecessary loss and need to change whole needle selection device; Fixing through alignment pin, can realize the replacing of pin, but when taking off alignment pin,, damage driving chip easily because side direction is exerted oneself; Through chuck band tongue gripping mechanism, can for convenience detachly change, but plug back chuck tongue generation deformation often influence positioning accuracy, and the processing and manufacturing of intermediate plate complicacy comparatively.

Summary of the invention

The object of the invention is exactly for overcoming the deficiency of above-mentioned background technology, provides a kind of and has been convenient to mounting or dismounting and changes, and positioning accuracy is higher, and the plug number of times is more, and intermediate plate more is prone to the needle selection device fixture of processing and fabricating simultaneously.

The needle fixation device of a kind of needle selection device involved in the present invention, pin can remain on the carrier removably.It is can be enclosed within on the pin for the pin that can produce elastic displacement, band and its chuck can limit the intermediate plate of pin position a shank afterbody; Be fixed in the outer cover plate of these intermediate plate both sides; And form based on the link that this two outer cover plate is fixed to driving chip, intermediate plate and outer cover plate constitute pin jointly and press from both sides.

Pin is made up of syringe needle and shank, and the shank afterbody is for producing the tongue of elastic displacement, and bar is made flat; In the tail width of bar than the shank inswept; To stay the mobile space that produces elastic displacement, there is a screens breach tail end side, and opposite side tongue root has another tongue breach.Screens breach in tail end side makes the convexity of pin folder chuck be pressed into wherein under prestressed effect, thereby realizes accurately location.

Pin folder chuck has the convexity of a qualification pin position; Protruding and screens breach cooperates makes the pin location; The width of intermediate plate is suitable with the width of shank; The fastening location of when inserting, having realized the pin width, because tongue designs at the shank afterbody, the processing and manufacturing difficulty of intermediate plate has the intermediate plate of tongue to reduce greatly.

Protruding and breach is the circular arc that cooperatively interacts, and through the size variation of radian, regulates the prestressing force of projection and breach, can realize adjusting fixing and the plug tightness.

Outer cover plate, intermediate plate have a sign breach, are the sign of the fashionable screens gap position of cushion, and the link of outer cover plate, outer cover plate and driving chip carries out bonding with epoxy resin.

The needle fixation device of a kind of needle selection device involved in the present invention has to be convenient to mounting or dismounting and to change, and positioning accuracy is high, plug often, intermediate plate more is prone to the advantage of processing and fabricating simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present invention, and wherein left outer cover plate is taken away.

Fig. 2 is the stereogram of Fig. 1, and wherein left outer cover plate is taken away.

Fig. 3 is the enlarged drawing of I part among Fig. 1, i.e. the partial elevation view of tongue and pin mounting board position cooperation.

Fig. 4 is an outer cover plate front view of the present invention

Fig. 5 is the front view of intermediate plate of the present invention

Fig. 6 is the front view of pin of the present invention

Fig. 7 is the partial enlarged drawing of II part among Fig. 6, the i.e. front view of Aculeata tongue

Fig. 8 is a part of removing chuck behind the cover plate, and is inserted in the sketch map of pin.

Among the above-mentioned figure: 1 syringe needle; 2 pin stalks; 3 chucks; 4 intermediate plates; 5 outer cover plates; The link of 6 driving chips; 7 tongues; 8 screens breach; 9 tongue breach; 10 convexities; 11 oblique angles; 12 sign breach; 13 circular holes

The specific embodiment

Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.

The needle fixation device of this needle selection device that Fig. 1, Fig. 2 represent; It is shank 2 afterbodys can produce elastic displacement pin, limit the intermediate plate 4 of pin position; A chuck 3 that can be enclosed within on the pin is arranged in the intermediate plate 4; Two outer cover plates 5 are fixed on intermediate plate 4 both sides, and the link 6 of driving chip is fixing through two outer cover plates 5.

The pin of Fig. 1, Fig. 2, Fig. 6, expression; It is by being made up of syringe needle 1 and shank 2, and syringe needle 1 mainly is made up of the pinprick of circle, and shank 2 afterbodys are for producing the tongue 7 of elastic displacement; Concrete structure is seen Fig. 7; Shank 2 is made flat, and is narrow than the shank head end in the tail width of bar, to stay the mobile space that produces elastic displacement; There is a concavity circular arc screens breach 8 the tail end side; The radian of screens breach 8 can be realized the effect of pretightning force greater than the radian of pin folder 3 protruding 10, and screens breach 8 the right Aculeata width can design narrowlyer; Can make plug more be prone to realize like this; And deformation is littler during plug, is difficult for causing permanent deformation, can increase the plug number of times of pin; Tail end opposite side tongue 7 roots have another tongue breach 9, make tongue 7 be prone to produce displacement and can reply rapidly.As shown in Figure 3: tail end side screens breach 8 makes the convexity 10 of pin folder be pressed into wherein under prestressed effect, thereby realizes accurately location.The tongue structural design is at the shank afterbody, and when syringe needle damages when changing pin, the tongue 7 that produces deformation is changed with pin, has increased the plug number of times of chuck 3, has improved positioning accuracy simultaneously.

The pin folder of Fig. 1, Fig. 2, expression, it sees Fig. 5 and an intermediate plate 4 by two outer cover plates 5, sees that Fig. 4 forms, outer cover plate 5 tail ends have designed a circular hole 13; The width of the width of intermediate plate 4 and shank 2 is suitable, the fastening location of when inserting, having realized the pin width, and chuck 3 inserts at pin, the importing end that both sides all can be done to plug; The thickness of intermediate plate 4 is suitable with shank 2 thickness, and pin can be plugged smoothly; Chuck 3 has the convexity 10 of a qualification pin position, and convexity 10 cooperates with screens breach 8 makes the pin location, sees Fig. 3; The pin folder 3 of intermediate plate 4 has a sign breach 12, with the screens breach 8 direction positions of the fashionable tongue 7 of difference cushion.Because the tongue design is at shank 2 afterbodys, pin presss from both sides intermediate plate 4 aglossate spring structures, so the processing and manufacturing difficulty reduces greatly.Outer cover plate 5, intermediate plate 4 materials are used spring steel, process with the method for punching press or cut.Outer cover plate 5 is thinner than intermediate plate 4, and the weld seam through the edge links together, and outer cover plate 5 rear portions exceed intermediate plate 4, hold the link 6 of driving chip in the centre, and outer cover plate 5 carries out bonding with the link 6 usefulness epoxy resin of driving chip.

As shown in Figure 8, chuck 3 is inserted in shank 2, and promptly pin inserts intermediate plate 4, and 3 taking-ups of intermediate plate chuck, and promptly pin is extracted, and its process is such:

Pin stalk 2 afterbodys have an inclined-plane 11, see Fig. 3, and through it, the chuck 3 of intermediate plate is inserted in pin stalk 2 tail ends; Be that pin inserts intermediate plate 4, A moves on to position B to tongue breach 9 from the position, continues chuck 3 covers fashionable; Through returning elastically motion, screens breach 8 reaches chucking position C, and chuck 3 protrusions 10 get into screens breach 8; Screens breach 8 takes out at intermediate plate chuck 3, when promptly pin is extracted, moves on to centre position B; The chuck 3 of intermediate plate 4 is taken out in continuation, and through flexible return movement, screens breach 8 is got back to original position A again.

The present invention is convenient to mounting or dismounting and is changed through tongue is designed on pin, and positioning accuracy is higher, and the plug number of times is more, and intermediate plate more is prone to process simultaneously.

Claims

1. the needle fixation device of a needle selection device comprises pin, pin folder, and the link (6) that is fixed to driving chip; Pin is made up of syringe needle (1) and shank (2); The pin folder is made up of intermediate plate (4) and outer cover plate (5), has one to be convenient to the chuck (3) that pin inserts on the intermediate plate (4), it is characterized in that: shank (2) afterbody is for producing the tongue (7) of elastic displacement; Its width is than the shank inswept, and tongue (7) is provided with tongue breach (9) and screens breach (8); The convexity (10) of one qualification pin position is arranged in the chuck (3) on the intermediate plate (4), and screens breach (8) makes convexity (10) be pressed in its breach under prestressed effect, and pin is able to fix in chuck (3) like this.When the inclined-plane (11) of intermediate plate chuck (3) through pin stalk afterbody is inserted in pin stalk tail end; A moves on to position B to tongue breach (9) from the position, and continuation is fashionable chuck (3) cover, through returning elastically motion; Screens breach (8) reaches chucking position C, and chuck (3) protrusions (10) gets into screens breach (8); Screens breach (8) moves on to centre position B when chuck (3) takes out, when chuck (3) was taken out in continuation, through flexible return movement, screens breach (8) was got back to original position A again.Protruding (10) and screens breach (8) are made into the circular arc that cooperatively interacts, and through the size variation of radian, can realize adjusting fixing and the plug tightness.