CN102477662A

CN102477662A - Compound needle for flatbed knitting machine

Info

Publication number: CN102477662A
Application number: CN2011103620394A
Authority: CN
Inventors: 薗村稔
Original assignee: Shima Seiki Mfg Ltd
Current assignee: Shima Seiki Mfg Ltd
Priority date: 2010-11-22
Filing date: 2011-11-15
Publication date: 2012-05-30
Anticipated expiration: 2031-11-15
Also published as: EP2458051B1; EP2458051A2; JP5766430B2; CN102477662B; JP2012112060A; EP2458051A3

Abstract

There is provided a compound needle for a flatbed knitting machine with no need to strongly fix a joining part as a slider in post-process operations. [Solution] An upper joining part (11c) of a base body (11) shown in (a) is joined to lower joining parts (12c, 13c) of the blades (12, 13) to form a joining part (15) shown in (b). Concave parts (12d, 13d) are respectively provided with narrowing parts (12e, 13e) in which the width between side walls is narrower than the width of an opening, and a convex part (11e) is provided with a widening part (11g) having the wider width than that of the narrowing parts (12e, 13e). The concave parts (12d, 13d) are elastically deformed midway through the insertion in the vertical direction, and the widening part (11g) is allowed to pass through the narrowing parts (12e, 13e). Thus, it is possible to join the two blades (12, 13) to the base body (11) as similar to the snap fitting of synthetic resin products. A groove (11d) provided at the tip end of the convex part (11e) sandwiches the blades (12, 13) below the concave parts (12e, 13e), so that it is possible to prevent the blades (12, 13) from coming off in the plate thickness direction.

Description

The compound needle of straight-bar machines

Technical field

The present invention relates to be contained in the needle tray that on the needle-bar of straight-bar machines, forms, and utilize pusher jack to make the compound needle of the straight-bar machines of pinhock switching.

Background technology

All the time, in the straight-bar machines, on needle-bar, arrange a plurality of needle trays are set, the mode of advancing and retreat with respect to the tooth mouth of needle-bar end with the pinhock of front end drives the knitting needle that is contained in each needle tray, utilizes the stocking yarn making knit fabric of supplying with to pinhock at the tooth mouth.As knitting needle, the compound needle that utilizes pusher jack that pinhock is opened and closed is arranged.Particularly, if form as utilizing pusher jack to make the needle latch of the part of pinhock switching with two blades, then needle latch can be crossed pinhock and move, and can also utilize the barring-on (for example with reference to patent documentation 1) of pusher jack.

In addition, the needle-bar of straight-bar machines is high with the tooth oral-lateral, the mode of step-down tilts during away from the tooth mouth, but the convenience in order to explain, in following explanation, establish the tooth oral-lateral and be preceding, away from tooth mouth one side be after, thereby confirm fore-and-aft direction.In addition, as the above-below direction perpendicular to fore-and-aft direction, it is last being located at the direction of floating in the needle tray, and the direction of in needle tray, sinking is down.And the width of establishing the needle tray of seeing from the place ahead is a left and right directions.In addition, omit diagram for needle-bar, needle tray.

Fig. 3 representes that patent documentation 1 etc. is disclosed, form the compound needle of needle latch at the front end of two blades the part of pusher jack constitutes.The left surface of Fig. 3 (a) expression matrix 1 constitutes and constitutes from the section that cuts off upper thread A-A observation.The section of this part constitutes asymmetric about center line 1a.From the rear of matrix 1, uprightly be provided with pin heel 1b, be received in the guiding function that the triangle that carries on the cam carrier that moves along needle-bar produces.On being provided with in the middle of the front and rear of matrix 1 joint portion 1c have in the face of the elongated slot 1d of left side side and in the left and right sides side opening and the recess 1e that is communicated with.Become the arm 1f of flexibly deflection deformation between last joint portion 1c and the pin heel 1b.In addition, arm 1f is shortened expression with fore-and-aft direction.

Overlooking of the blade 2 on Fig. 3 (b) expression right side constitutes and the left surface formation.Overlooking of the blade 3 in Fig. 3 (c) expression left side constitutes and the left surface formation.Overlooking of Fig. 3 (d) expression pusher jack 4 constitutes and the left surface formation.Fig. 3 (e) amplifies expression with the bound fraction 5 of matrix shown in Fig. 3 (d) 1 and

blade

2,3.

The pusher jack 4 that is compound needle is for will being combined to form by matrix 1 and two

blades

2,3 that metallic plate utilizes punch process etc. to form with bound fraction 5.Each

blade

2,3 forwardly has needle latch 2a, 3a respectively, and the bottom is contained in the guide pin film trap that forms on the illustrated pin body omitting, and in the guide pin film trap, relatively moves forwards, backwards, utilizes needle latch 2a, 3a that the pinhock of pin body is opened and closed.On the

blade

2,3, continue, form bend 2b, the 3b of upper end to the external opening of pusher jack groove with needle latch 2a, 3b.Be provided with joint portion 2c, 3c down at the rear portion of blade 2,3.Following joint portion 2c, 3c have pin heel 2d, 3d that combines usefulness and afterbody 2e, the 3e that rearward extends.In the front portion that is provided with needle latch 2a, 3a and bend 2b, 3b and be provided with between the rear portion of down joint portion 2c, 3c and be provided with arm 2f, 3f, anterior strain swing capable of using.The afterbody 3e of blade 3 with the flexibly sliding-contact and become the mode of resistance to sliding of the sidewall of needle tray, bloat to the side.On the bound fraction 5, the pin of the recess 1e of matrix 1 and

blade

2,3 heel 2d, 3d combine, and are provided with the 5a of ca(u)lk portion, 5b, 5c around, the firm combination that formation can not be pulled down.

[technical literature formerly]

[patent documentation]

No. 2946323 communique of [patent documentation 1] Japan Patent

Summary of the invention

In the bound fraction 5 on pusher jack shown in Figure 34; Matrix 1 and two

blades

2,3 are combined; But with respect to pin heel 2d, 3d and afterbody 2e, the 3e of following joint portion 2c, 3c, elongated slot 1d and the recess 1e of the last joint portion 1c that their combine form slightly bigly.Therefore, pin is called in person after 2d, 3d, afterbody 2e, 3e insert elongated slot 1d, recess 1e, need reorientate and the operation of fixing back operation.The location for example make afterbody 2e, 3e upper surface and elongated slot 1d the upper wall surface butt and carry out.The front portion of

blade

2,3 is with respect to the relatively moving of pin body the time, and what form in the bottom surface of guide pin film trap concavo-convexly becomes triangle and swing.Therefore because this swing applies big bending moment to bound fraction 5, might remove combination, the 5a of ca(u)lk portion, 5b, 5c etc. need be set and fix securely.

The purpose of this invention is to provide not and need firmly fix compound needle in the back operation as the straight-bar machines of the bound fraction of pusher jack.

The present invention provides a kind of compound needle of straight-bar machines; Combination has pin body and pusher jack; Said pin body is contained in the needle tray of arranging on the needle-bar that is arranged on straight-bar machines; Forwardly have pinhock and can on fore-and-aft direction, move back and forth along needle tray, said pusher jack forwardly has to be made the needle latch that pinhock opens and closes and can on fore-and-aft direction, relatively move with respect to the pin body

Pusher jack comprises switching body and matrix, below said switching body is disposed in needle tray, forwardly has needle latch; Have following joint portion at the rear portion, said matrix in needle tray, compare open and close body lean on above configuration, have the last joint portion that combines with the following joint portion of switching body; It is characterized in that, comprising:

Recess is located at down the joint portion or is gone up a side of joint portion, to the opposing party's side opening, has from the two ends of openend to the sidewall of side's side extension, in the part in a narrow margin of the narrow width that is provided with the width ratio open end between sidewall on the fore-and-aft direction;

Protuberance is located at down the joint portion or is gone up the opposing party of joint portion, is provided with the width wide cut part wideer than the part in a narrow margin of recess of fore-and-aft direction; Insert and combine from the opposing party's side direction recess; Inserting midway, the wide cut part can be utilized the in a narrow margin part of the strain of recess through recess

At the bound fraction of recess and protuberance, be provided with groove in the centre of any side's thickness, arbitrarily in the opposing party's insertion groove.

The invention is characterized in that in addition the switching body of said pusher jack is said needle latch to the both sides of said pinhock separately and can cross pinhock and two blades advancing.

The invention is characterized in that in addition said recess forms on the overlapping part of said two blades as said joint portion down,

Under the state of groove that is provided with in lower end in the overlapping part of two blades of clamping in said combination as the said protuberance of joint portion on said become recess below part.

[invention effect]

According to the present invention, in the pusher jack, the recess that Xiang Zaiyi side is provided with is inserted in the protuberance that the opposing party is provided with, and opens and closes the combination of following joint portion of following joint portion and the matrix of body.On the recess, be provided with the part in a narrow margin of the narrow width of the width ratio open end between sidewall, on the protuberance, be provided with the width ratio wide wide cut part of part in a narrow margin.In the insertion of above-below direction midway, therefore recess strain and wide cut part can, can will open and close body and matrix bond at bound fraction through part in a narrow margin.On the bound fraction, to above-below direction, the quilt that passes through of wide cut part partly stops in a narrow margin, therefore can only utilize to insert and fix.Also be that recess and protuberance insert the opposing party through the groove to a side and combine, and therefore can avoid breaking away to width.Therefore, after forming bound fraction, can eliminate the necessity of the back processing that is used to firmly fix.

According to the present invention,, also can only utilize to matrix and insert and combination and fixing in addition even utilize two blades to form the switching body of pusher jack.

According to the present invention,, be provided with recess in addition in the following joint portion of two blade-side at the matrix of pusher jack and the bound fraction of two blades.Be utilized in the part of the recess below in the overlapping part of two blades of groove clamping of front end of protuberance of the last joint portion that the matrix side is provided with, so can avoid blade to break away to width from bound fraction.

Description of drawings

Fig. 1 is that expression constitutes partial left side view and the elevation cross-sectional view as the bound fraction 15 of the matrix 11 of the compound needle of one embodiment of the invention and blade 13.

Fig. 2 is left side view, and the partial left side view of pin body 16 and compound needle 17 of matrix 11 and the blade 13 of Fig. 1.

Fig. 3 is left side view, vertical view and the cutaway view of the bound fraction 5 of the pusher jack 4 in the existing compound needle of expression.

[label declaration]

11 matrixes

The last joint portion of 11c

The 11d groove

The 11e protuberance

11g wide cut part

12,13 blades

Joint portion under 12c, the 13c

12d, 13d recess

12e, 13e be part in a narrow margin

14 pusher jacks

15 bound fractions

16 pin bodies

17 compound needles

The specific embodiment

Below, in Fig. 1, expression constitutes as the part of the bound fraction 15 of the compound needle of one embodiment of the invention.Among Fig. 2, expression possesses the formation of compound needle 17 of the bound fraction 15 of Fig. 1.Wherein, to the part mark of explanation earlier identical with reference to label, perhaps to in the corresponding part of part illustrated in fig. 3, only ten numerical value is different, sometimes other parts is marked the identical explanation of omitting repetition with reference to label.In addition, for the part of in the accompanying drawing of description object, not putting down in writing, what mark was explained earlier sometimes mentions with reference to label.

[embodiment]

Fig. 1 (a) expression matrix 11 and the state that separates as the blade 13 that opens and closes body.Among the last joint portion 11c of matrix 11, be provided with groove 11d, have outstanding protuberance 11e downwards at front end.At the rear of last joint portion 11c, arm 11f forms with the mode of extending.The width of the fore-and-aft direction of protuberance 11e is maximum at wide cut part 11g.Blade 13 has the following joint portion 13c that combines with last joint portion 11c.Following joint portion 13c is provided with the recess 13d to the top opening.Recess 13d is provided with from the 13e of part in a narrow margin of the narrow width of the width ratio open end between the sidewall of the two side extension of openend.The blade 12 overlapping uses that the

blade

2,3 of blade 13 and front and Fig. 3 is likewise different.The right side of Fig. 1 (d) is represented from cutting off the section formation that upper thread A-A observes.With blade 13 likewise, joint portion 12c and recess 12d also are set down on the blade 12.

Fig. 1 (b) expression combines matrix 11 and

blade

12,13 and the state of formation bound fraction 15.Be illustrated in the section formation that bound fraction 15 is observed from cutting off upper thread B-B on the right side.Recess 12d, 13d are last, are provided with the 12e of part in a narrow margin, the 13e of the narrow width of the width ratio open end between sidewall, on the protuberance 11e, are provided with width than part 12e, the wide wide cut part 11g of 13e in a narrow margin.In the insertion of above-below direction midway, therefore recess 12d, 13d strain and wide cut part 11g can utilize joint portion 11c and following joint portion 12c, 13c will open and close body and matrix 11 combinations through part 12e, 13e in a narrow margin.Through this combination, to above-below direction, wide cut part 11g passes through by part 12e, 13e prevention in a narrow margin, and therefore only the utilization insertion promptly can be fixed.Below recess 12d, 13d, two blades, 12,13 overlapping parts insert protuberance 11d front end groove 11d and combine, therefore only utilize the insertion of above-below direction just can prevent on width, to break away from.Therefore, after the formation of bound fraction 15, can eliminate necessity of the back processing that is used for fixing securely.

Fig. 2 representes the formation of compound needle 17, the matrix 11 as critical piece, blade 13 and pin body 16 as embodiments of the invention.Matrix 11 shown in Fig. 2 (a) has joint portion 11c in Fig. 1 explanation, and the bottom has elongated slot 11h forwardly.Elongated slot 11h forms with the state of opening downwards in the centre of width.At the rear of matrix 11, arm 11f extends, and also uprightly is provided with and the same pin heel of pin heel 1b shown in Fig. 3 (a), but has omitted diagram.

Blade 13 shown in Fig. 2 (b) forwardly has needle latch 13a and bend 13b, and has rake 13f.Needle latch 13a and bend 13b needle latch 3a and the bend 3b with Fig. 3 (c) respectively are identical.Rake 13f is in order to make needle latch 13a sinking and to be provided with when moving back circle.When moving back circle, the pin body advances, and needle latch 13a relatively retreats, and the pinhock of pin body is opened, and is accepted to be hooked in the coil of pinhock by needle latch 13a.At this moment, in order not become the obstacle that coil shifts, need make needle latch 13a sink to the guide pin film trap of pin body.For omitting illustrated blade 12 too.

Pin body 16 shown in Fig. 2 (c) has pinhock 16a at front end, is formed with guide pin film trap 16b at the shank that continues with pinhock 16a.On the place ahead part of guide pin film trap 16b, be provided with triangular part 16c in the bottom.Among the triangular part 16c, at the needle latch 13d of blade 13 during with the front end locking of pinhock 16a, make needle latch 13a from guide pin film trap 16b floating on.When moving back circle, needle latch 13a retreats in guide pin film trap 16b, and the signature splenium 16d that rake 13f is located at pin body 16 pushes, and needle latch 13a sinks in the guide pin film trap 16b.

Compound needle 17 shown in Fig. 2 (d) comprises that matrix 11 and blade 13 form bound fractions 15 and the pusher jack 14 of combination, and pin body 16.Compound needle 17 is contained on the needle-bar of straight-bar machines arranges the needle tray that is provided with, the knitting needle performance function that can on fore-and-aft direction, move back and forth along needle tray as forwardly having pinhock 16a.

In addition, formation will have the switching body that the blade 13 of the needle latch 13a that the pinhock 16a that makes pin body 16 opens and closes, same blade 12 these two

blades

12,13 and matrix 11 combine, but the switching body also can be one formation.No matter how many numbers is, opening and closing body can both pull down matrix and open and close body after form bound fraction 15, under situation about sustaining damage, changes.

In addition,, form recess 12d, 13d, also can protuberance be formed on

blade

12,13 sides, let recess be formed on matrix 11 sides at following joint portion 12c, the 13c of

blade

12,13 sides though joint portion 11c forms protuberance 11e on matrix 11 sides.Used two blades at 12,13 o'clock, and groove was set and the front end that inserts the protuberance of

blade

12,13 sides got final product in matrix 11 sides that form recess.The matrix side with open and close the side when not having the difference of thickness, make the thin partly and insertion of a side be located at the opposing party's groove and get final product.

Claims

1. the compound needle of a straight-bar machines; Combination has pin body and pusher jack; Said pin body is contained in the needle tray of arranging on the needle-bar that is arranged on straight-bar machines; Forwardly have pinhock and can on fore-and-aft direction, move back and forth along needle tray, said pusher jack forwardly has to be made the needle latch that pinhock opens and closes and can on fore-and-aft direction, relatively move with respect to the pin body

2. the compound needle of straight-bar machines according to claim 1 is characterized in that,

The switching body of said pusher jack is said needle latch to the both sides of said pinhock separately and can cross pinhock and two blades advancing.

3. the compound needle of straight-bar machines according to claim 2 is characterized in that,

Said recess forms on the overlapping part of said two blades as said joint portion down,