CN202039183U

CN202039183U - Knitting cam for circular knitting machine

Info

Publication number: CN202039183U
Application number: CN2011200895757U
Authority: CN
Inventors: 李炜
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-31
Filing date: 2011-03-31
Publication date: 2011-11-16
Anticipated expiration: 2021-03-31

Abstract

The utility model relates to a main knitting part used for a circular knitting machine, in particular to a knitting cam for a circular knitting machine, which structurally comprises a cam body (1); a coil molding area section (10) is arranged at the bottom of a needle bell groove (2) of the cam body (1); the needle bell groove (2) in front of the coil molding area section (10) is internally provided with a narrowing arc section (3) and a descending kinking section (4); and the narrowing arc section (3), the descending kinking section (4) and the coil molding area section (10) are connected in sequence according to the direction of a knitting moving track. Compared with the prior art, the knitting cam has the advantages of reasonable design, simple structure, low processing cost and little influence on a knitted product.

Description

A kind of circular knitting machine knitting cam

Technical field

The utility model relates to the main knitting component that a kind of circular knitting machine is used, and specifically provides a kind of circular knitting machine knitting cam.

Background technology

The action of knitting knitting needle is depended in the braiding of circular knitting machine, and laterally moving of knitting needle relies on the syringe of laying knitting needle, and vertically moving of knitting needle relies on the knitting cam that is placed on the frame to promote.The groove blistering wheel effect of triangle the inside engraving, the pin heel of push-and-pull knitting needle moves up and down.With reference to knitting needle motion principle figure, see Fig. 1.The action of knitting knitting needle relies on the engraving track of knitting cam.For the engraving triangle that single-piece is finished a braiding do action, curve smooth continuously most important to the raising of weaving quality.When knitting needle arrives the zone, bottom according to the descending motion of groove curve, be the coil molding section, kinking this moment finishes, the beginning lopping, and the line circle of going forward side by side is put in order.If coil puts in order evenly then cloth cover is smooth, otherwise cloth cover is coarse.

In the reality, the knitting cam of circular knitting machine need possess the condition that independent adjustment is connected with annular, so the grown form of the knitting cam of current use is commonly shown in Figure 2.

Though this type of triangle is simple, convenient, reliable through the long-term proof of using.Flaring big connecting interface appears in splicing place of obviously seeing two triangles among the figure, and the effect of interface is to be convenient to independently adjusting and preventing that the pin heel from skidding off outside the groove of triangle.The here makes the pin heel lose restriction at this than the existence of large space, can not have control and collects together, causes the coil easy deformation that has formed, and it is attractive in appearance to influence cloth cover.Today, the rank of machine improved rapidly, and when the requirement of quality was more and more careful, the problem that this type of triangle exists progressively displayed.Its defective shows as:

When 1, knitting needle contacts with next triangle through the splicing interface, a broken line flex point appears in the knitting needle movement locus, knitting needle and triangle have a meeting to cause the rum point of knitting needle vibrations, and the yarn of the easy tractive adjacent windings of coil on the big knitting needle of vibrations produces distorted loop.

2, knitting needle is through before splicing interface and next triangle contacting, and the link position between triangle has one section knitting needle dead band, and this moment, knitting needle had the condition of moving freely.The propelling meeting push-and-pull coil of sinker, the knitting needle that freedom of movement is high can be pulled rise, and the knitting needle that freedom of movement is low then is difficult to be pulled, and coil can be organized again and form big small coil.

Cooperate figure (Fig. 3) referring to original triangle.

Summary of the invention

The utility model is at above problem, a kind of circular knitting machine knitting cam is provided, it reselects theoretical braiding trajectory, new trajectory is set knitting needle motion track in coil shaping area section and the broken line motion do not occurred, do not leave shock point, do not have the free activity space of knitting needle, increase the ballast coil platform, online circle forms the starting stage, and the no control of yarn is shifted between limiting coil.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of circular knitting machine knitting cam, comprise the triangle body, the pin bell trench bottom of described triangle body is provided with the coil molding section, be provided with the interval and decline kinking interval of narrowing circular arc in the pin bell groove in described coil molding section the place ahead, its narrowing circular arc interval, decline kinking interval link to each other according to knitting needle movement locus direction successively with the coil molding section.

The rear of coil molding section is provided with the rising withdrawal of needle and endures the interval and circular arc interval, pin top very of pin, and described coil molding section, rising withdrawal of needle endure that pin is interval to link to each other according to knitting needle movement locus direction successively with circular arc interval, pin top very.

The coil molding section is divided between pressing point, back stitching interval and coil Distribution Area along knitting needle movement locus direction.

A kind of circular knitting machine of the present utility model is selected the triangle connecting interface with knitting cam in the very pin stage of knitting needle motion, and the connecting interface position is rearranged, and makes interface be kept to minimum to the influence of braiding.According to new knitting needle trajectory, being provided with of groove of the pin of knitting cam heel will be different fully with former knitting cam.It is interval that the starting point of pin heel groove is provided with the circular arc narrowing, buffering knitting needle break-in acceleration; Carry out the transition to the last transition, contain yarn and kinking; Kinking success back is in pressing point, lasso lopping; Through back stitching district, ballast coil; Between coil arrangement platform area, force coil evenly to be put in order; Transit to withdrawal of needle and endure the pin interval, withdraw from old coil; The arc transition district is to triangle splicing interface.Pin heel groove in the coil molding section is pressed the totally-enclosed design of pin heel width, and the track in this stage changes complete round-corner transition, does not stay flex point, the pin heel do not occur and collects together phenomenon with triangle impingement phenomenon and knitting needle.

In sum, a kind of circular knitting machine of the present utility model with knitting cam compared with prior art, have reasonable in design, simple in structure, processing cost is low, characteristics little to assembling-disassembling influence.

Description of drawings

Fig. 1 is the structure and the knitting needle running status schematic diagram of the knitting cam under the prior art;

Fig. 2 is the grown form figure of the knitting cam under the prior art;

Fig. 3 is the cooperation figure of the knitting cam under the prior art;

Fig. 4 is the knitting needle movement locus figure of a kind of circular knitting machine of the present utility model with knitting cam;

Fig. 5 is the structural representation of a kind of circular knitting machine of the present utility model with knitting cam;

Fig. 6 is the back stitching angle enlarged diagram of a kind of circular knitting machine of the present utility model with knitting cam.

The specific embodiment

Below in conjunction with the drawings and specific embodiments a kind of circular knitting machine of the present utility model is further described with knitting cam.

As shown in Figure 5, a kind of circular knitting machine knitting cam, comprise triangle body 1, the pin bell groove 2 on the described triangle body 1 along knitting needle movement locus direction be respectively arranged with between narrowing circular arc interval 3, decline kinking interval 4, pressing point 5, back stitching interval 6, coil Distribution Area 7, the rising withdrawal of needle endures pin interval 8 and endures circular arc interval, pin top 9.

7 coil molding sections 10 that constitute original knitting cam between pressing point 5, back stitching interval 6, coil Distribution Area wherein.

With the novel knitting cam of 40G/2.54cm rank is example, selects pinhock and needle latch apart from being 7mm, and the pin heel is wide to be 4mm, and structure chart is seen Fig. 5, and back stitching angle enlarged drawing is seen Fig. 6.

Can see that from the structure chart of new triangle pin heel groove 2 adopts new moving towards to arrange, thereby the movement locus of knitting needle 11 is changed simultaneously, is embodied in:

1, the knitting needle track does not have flex point in the coil molding section 10, does not produce rum point.

2, the heel of knitting needle 11 pins is in the control fully of cutting needle heel groove all the time in coil shaping area section 10, does not have free movable space.

3, the coil that leaves 3mm is stablized the control zone, promptly between the coil Distribution Area 7, forces the arrangement distorted loop.

4, connect the needle sticking point position of linear slit fetch bit between the triangle, do not influence braid movement, do not influence installation, adjust in knitting needle 11 motions.

Only change the hold-down screw position when 5, the knitting cam after the improvement is installed, other occupation modes are not made change.

Above-described embodiment, the utility model specific embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection domain of the present utility model.

Claims

1. circular knitting machine knitting cam, comprise triangle body (1), pin bell groove (2) bottom of described triangle body (1) is provided with coil molding section (10), it is characterized in that, be provided with narrowing circular arc interval (3) and decline kinking interval (4) in the pin bell groove (2) in described coil molding section (10) the place ahead, its narrowing circular arc interval (3), decline kinking interval (4) link to each other according to knitting needle movement locus direction successively with coil molding section (10).

2. a kind of circular knitting machine knitting cam according to claim 1, it is characterized in that, the rear of described coil molding section (10) is provided with the rising withdrawal of needle and endures pin interval (8) and circular arc interval, pin top (9) very, and described coil molding section (10), rising withdrawal of needle are endured pin interval (8) and endured circular arc interval, pin top (9) and link to each other successively according to knitting needle movement locus direction.

3. a kind of circular knitting machine knitting cam according to claim 1 and 2 is characterized in that described coil molding section (10) is divided between pressing point (5), back stitching interval (6) and coil Distribution Area (7) along knitting needle movement locus direction.