KR20140119425A - Cam apparatus in circular knitting machine - Google Patents

Cam apparatus in circular knitting machine Download PDF

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Publication number
KR20140119425A
KR20140119425A KR1020130035039A KR20130035039A KR20140119425A KR 20140119425 A KR20140119425 A KR 20140119425A KR 1020130035039 A KR1020130035039 A KR 1020130035039A KR 20130035039 A KR20130035039 A KR 20130035039A KR 20140119425 A KR20140119425 A KR 20140119425A
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KR
South Korea
Prior art keywords
track
cam
guide
hole
variable rod
Prior art date
Application number
KR1020130035039A
Other languages
Korean (ko)
Inventor
주희석
주동문
Original Assignee
주희석
주동문
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주희석, 주동문 filed Critical 주희석
Priority to KR1020130035039A priority Critical patent/KR20140119425A/en
Publication of KR20140119425A publication Critical patent/KR20140119425A/en

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/14—Needle cylinders
    • D04B15/16—Driving devices for reciprocatory action
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/18—Dials
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D04B15/322—Cam systems or assemblies for operating knitting instruments in circular knitting machines with needle cylinder and dial
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D04B15/34—Cam systems or assemblies for operating knitting instruments for dials
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/06—Circular knitting machines with independently-movable needles with needle cylinder and dial for ribbed goods

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Abstract

The present invention relates to a cam device for a circular knitting machine. The cam device includes a moving-up track, a moving-down track and a horizontal track. On an end portion of a first track guide, a first guide fixating groove is formed. On an upper end of a first long hole, a first cam penetration hole is formed. The cam device includes a first track varying rod and a second track varying rod. On an end of a second track guide, a second guide fixation groove is formed. On an upper end of a second long hole, a third cam penetration hole is formed. According to the present invention, costs, time, and labor costs can be saved because a user does not need to disassemble and then assemble the cam every time a structure of knitted fabric is needed to be changed.

Description

[0001] CAM APPARATUS IN CIRCULAR KNITTING MACHINE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cam device for a circular knitting machine, and more particularly to a cam device for a circular knitting machine, which is capable of changing the structure of a fabric without changing a cam by operating a cam position outside the cam holder, To a cam device for a cam.

The knitting machine is a kind of textile machine which produces a knitted fabric of a bar which is intended to make a nose by a knitting needle and to soften the nose in the horizontal and vertical directions.

Such a knitting machine is roughly classified into a warp knitting machine for knitting the warp in the longitudinal direction and a weft knitting machine for knitting the weft in the lateral direction.

Among them, the circular knitting machine belongs to the category of the upper knitting machine, and the knitting needles are circularly arranged on the cylinder to continuously produce the circular knitting yarn, and the circular knitting fabric is usually finished by the cutting process through the cutting process.

Thus, the circular knitting machine knits a circular fabric. Normally, the circular knitting machine is provided with a cylinder in which a plurality of knitting needles are coupled to a circumferential surface. As shown in Fig. 1, the center of the cylinder And the lower ends of the cam holders 1 are fixed on the concentric circle of the annular cam plate 3. The cam holder 1 is provided with a plurality of cam holders 1,

A cam curved groove is formed in each of the cams 2 so that the butt of the needle of the knitting needle guiding the up and down movement of the knitted fabric in accordance with the knitting set is guided to the cam curve groove Lt; / RTI >

Here, the conventional cam holder 1 is provided with a groove for mounting a fine positioning adjustment member of the cam 2 on its inner surface, and a plurality of fastening holes for fastening the cam 2 are formed on both sides of the groove .

In addition, the lower end is brought into contact with the cam plate 3, and the inner surface is formed into a curved surface having a predetermined curvature so that the cam 2 can be concentric with the circumference of the cylinder.

Prior art related to such a circular knitting machine is disclosed in Japanese Patent Laid-Open Nos. 2001-0081298 and 1074928. [

Then, as illustrated in Fig. 2, the needle is knitted in combination with another needle disposed vertically while moving the needle along the rising track 9a and the falling track 9b formed on the cam 2. Fig.

In this case, the reference numeral '9c' in FIG.

3, the cam 2 formed with the rising track 9a and the falling track 9b is held in a fixed state by the fixing bolt 10, Even if it has the size-regulating slot 9c, it can not change the tissue itself to be knitted.

Therefore, in order to change the texture of the fabric, the fixing bolt 10 should be loosened and the cam holder 1 (see Fig. 1) should be detached and replaced with another cam 2.

However, in the case of the 30-inch 84F model, since 42 sets are assembled, it is a very difficult task to disassemble and disassemble them all one by one. Since it takes a lot of work time, it not only lowers the productivity but requires a skilled engineer Labor costs will rise sharply.

The above-described model is only an example for explanation, and in the case of other models, too many sets are assembled.

The present invention has been made in view of the above-mentioned problems in the prior art, and it is an object of the present invention to provide a method and apparatus for easily and quickly changing the fabric of a fabric without replacing a cam, There is a main purpose of providing a cam device for a circular knitting machine.

According to the present invention, there is provided a cam for a circular knife machine including a rising track, a falling track and a horizontal track, A first track forming guide is hinged to one end of the first track forming guide, and a first guide fixing groove is formed at the other end of the first track guide; A second cam hole is formed in the lower end of the first slot so that the first track forming guide is parallel to a point where the first track forming guide is hinged, A first cam through-hole is formed at an upper end of the first cam; And the first guide fixing groove and the first cam through hole or the first guide fixing groove and the second cam through hole are fitted and fixed to each other while moving along the first long hole, And a first track variable rod for changing the first track variable rod; One end of the second track forming guide is hingedly fixed to the entrance of the horizontal track and the other end of the second track guide is formed with a second guide fixing groove; A second cam hole penetrating through the cam to form a second slot having a circular arc shape and a lower end of the second slot forming a fourth cam through hole so as to be parallel to a point where the second track forming guide is hinged, A third cam through-hole is formed at an upper end of the second cam groove; The second guide groove and the third cam through hole or the second guide groove and the fourth cam through hole are fitted to each other to fix the shape of the track, And a second track variable rod for changing the position of the second track variable rod.

At this time, a first spring mounting groove having a diameter larger than that of the first track variable rod is formed in a part of the cam where the first track variable rod is inserted, a first spring is embedded in the first spring mounting groove, Is fixed to the first track variable rod and the other end is fixed to the first spring mounting groove to provide a resilient return force to the first track variable rod.

A second spring mounting groove having a diameter larger than that of the second track variable rod is formed in a portion of the cam where the second track variable rod is inserted. A second spring is embedded in the second spring mounting groove, One end of which is fixed to the second track variable rod and the other end is fixed to the second spring mounting groove to provide an elastic return force to the second track variable rod.

In addition, the end of the first and second track variable rods protruding outwardly of the cam is further provided with a grip for gripping.

According to the present invention, it is possible to save cost and time since it is not necessary to separately disassemble and reassemble the cam to change the structure of the knitted fabric.

In addition, it is convenient to change the fabric structure easily by simply operating the lever with the cam mounted.

In addition, labor costs are reduced because they do not require skilled technicians.

1 is a schematic view showing a concept of a general circular knitting machine.
2 to 3 are partial cross-sectional views showing a cam structure of a circular knitting machine according to the prior art.
4 is an exemplary view showing a track structure of a cam apparatus for a circular knitting machine according to the present invention.
Fig. 5 is an enlarged view of the main part of Fig. 4 and an exemplary cross-sectional view showing the part thereof in cross-section.
FIG. 6 is a conceptual diagram schematically showing an outer appearance of the cam apparatus for a circular knitting machine according to the present invention after the cam is installed.
7 is an exemplary view showing an application example of the cam apparatus for a circular knitting machine according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

As shown in FIG. 4, the cam apparatus for a circular knitting machine according to the present invention includes a plurality of cams 100.

1, the cam 100 is mounted on the cam holder, and in this state, the cam holder is mounted on the cam plate to constitute a circular knitting machine, which is the same as the conventional one.

However, in the present invention, the internal structure of the cam 100 is improved.

In addition, in the present invention, the cam 100 is not simply divided into a dial cam and a cylinder cam, but is collectively referred to simply as a cam.

The horizontal track 110, the ascending track 120, and the descending track 130 constituting the flow path of the needle are formed in the cam 100.

Also, the cam 100 is fixedly fixed to the cam holder (not shown) through the fixing bolt 140.

More specifically, as shown in FIGS. 5 and 6, the peaks at which the rising track 120 and the falling track 130 meet are cut flat and the first track forming guide 200 ).

At this time, one end of the first track forming guide 200 is hingedly fixed to the cam 100 by a first fixing shaft 210 so as to be rotatable.

A first guide fixing groove 220 is formed at the other end of the first track forming guide 200 and a tip end of the first track varying rod 300 is inserted into the first guide fixing groove 220, It is possible to fix the position of the one-track forming guide 200 to a specific position or release the fixed state.

In this case, on the cam 100, a first cam (not shown) is provided on the cam 100 so that the first track variable rod 300 can penetrate the cam 100 from the outside and can be fitted into the first guide fixing groove 220, The through hole 230 is formed in the first through hole H1 shown in FIG. 6 so as to communicate with the second through hole 240 described later. The first and second through holes 230 and 240 are vertically Respectively.

That is, the second cam through hole 240 is formed on the cam 100 at a position spaced apart in parallel with the first fixed shaft 210.

Accordingly, the first track variable rod 300 can be raised and lowered in the radial direction within the range of the first long hole H1. In the positional variation state, the first track variable rod 300 can be moved up and down along the rising track 120 The shape of the descending track 130 is changed.

At this time, in the part of the inside of the cam 100 in which the first track variable rod 300 is inserted so as to facilitate the operation of the first variable track rod 300, A first spring mounting groove 310 having a diameter larger than that of the variable rod 300 is formed and a first spring 320 having a diameter corresponding to the first spring mounting groove 310 is formed. And the other end is hooked on the first spring mounting groove 310 to provide an elastic return force to the first track variable rod 300 so that the first track variable rod 300 It can be easily operated simply by pulling and releasing it.

Similarly, the second track forming guide 500 having the same structure is provided at the entrance of the horizontal track 110 as well.

At this time, one end of the second track forming guide 500 is hinged to the cam 100 by a second fixing shaft 510 so as to be rotatable.

A second guide fixing groove 520 is formed at the other end of the second track forming guide 500 and a tip of the second track variable rod 400 is inserted into the second guide fixing groove 520, The two-track forming guide 500 can be fixed to a specific position or released from the fixed state.

In this case, on the cam 100, a third cam (not shown) is mounted on the cam 100 so that the second track variable rod 400 penetrates the cam 100 from the outside and can be fitted into the second guide fixing groove 520. [ Through holes 530 are formed in the second through hole 530. The through holes 530 are communicated with the fourth through holes 540 to be described later by the second elongated hole H2 shown in Fig. 6, and the third and fourth through holes 530, Respectively.

That is, the fourth cam through-hole 540 is formed on the cam 100 at a position spaced apart in parallel with the second fixed shaft 510.

Therefore, the second track variable rod 400 can be moved up and down in the radial direction within the range of the second long hole H2. In the positional variation state, The shape changes.

At this time, in a part of the inside of the cam 100 in which the second track variable rod 400 is inserted, the second track variable rod 400 is inserted into a portion of the second track variable rod 400 in order to facilitate the operation of the second track variable rod 400, A second spring mounting groove 410 having a diameter larger than that of the variable rod 400 is formed and a second spring 420 having a diameter corresponding to the second spring mounting groove 410 is built in, The second track variable rod 400 can be elastically restored to the second track variable rod 400 by fixing the second track variable rod 400 to the second spring mounting groove 410 and the other end to be engaged with the second spring mounting groove 410, It can be easily operated simply by pulling and releasing it.

In addition, the first and second track variable rods 300 and 400 may have grips 330 and 430 protruding outward from the cam 100, respectively, in order to increase the convenience of operation.

The present invention having such a configuration has the following operation relationship.

For example, as shown in FIG. 7 (a), when the first-stage variable rod 300 is pulled while the first-stage variable structure is changed, the first track forming guide 200 is moved to the first cam through- When the second track variable rods 400 are pulled together with the first guide fixing grooves 220 and the second track variable guides 400 are engaged with the first guide grooves 220, the raising tracks 120 and the descending tracks 130 are peaks. And the second guide fixing groove 520 is engaged with the third cam through hole 530 to keep the horizontal track 110 closed. This type of knit cam may be utilized in knitting .

7 (b), the first track forming guide 200 is moved in the state in which the first track variable rod 300 is pulled, and the first guide fixing groove When the second track variable rod 400 is pulled in a state where the second track variable rod 400 is pulled, the contact between the ascending track 120 and the descending track 130 is cut horizontally, that is, When the two-track forming guide 500 is moved to engage with the second guide fixing groove 520 at the third cam through-hole 530, the horizontal track 110 is kept closed. It can be utilized in knitting of the cement.

7 (c), the first track forming guide 200 is moved in the state in which the first track variable rod 300 is pulled, so that the first guide groove 220 is formed in the first cam through hole 230, The second track forming guide 500 is moved in a state in which the second track variable rod 400 is pulled, and the second track forming guide 500 is moved When the second guide fixing groove 520 is engaged with the fourth cam through hole 540, the horizontal track 110 is maintained in an open state. This form can be utilized in a kind of mis-cam knitting.

As described above, the cam device according to the present invention eliminates the inconvenience of disassembling the cam to change the knitting structure, reconfiguring the track after reconfiguring the track, and reassembling the cam once again. When the knobs 330, The knitting structure can be easily and quickly changed only by holding the positions of the first and second track forming guides 200 and 500 and then placing the knobs 330 and 430 pulled up.

100: Cam 200: First track forming guide
300: first track variable rod 400: second track variable rod
500: second track forming guide

Claims (4)

1. A cam for a circular knife machine comprising a rising track, a falling track and a horizontal track;
A first track forming guide is hinged to one end of the first track forming guide, and a first guide fixing groove is formed at the other end of the first track guide;
A second cam hole is formed in the lower end of the first slot so that the first track forming guide is parallel to a point where the first track forming guide is hinged, A first cam through-hole is formed at an upper end of the first cam;
And the first guide fixing groove and the first cam through hole or the first guide fixing groove and the second cam through hole are fitted and fixed to each other while moving along the first long hole, And a first track variable rod for changing the first track variable rod;
One end of the second track forming guide is hingedly fixed to the entrance of the horizontal track and the other end of the second track guide is formed with a second guide fixing groove;
A second cam hole penetrating through the cam to form a second slot having a circular arc shape and a lower end of the second slot forming a fourth cam through hole so as to be parallel to a point where the second track forming guide is hinged, A third cam through-hole is formed at an upper end of the second cam groove;
The second guide groove and the third cam through hole or the second guide groove and the fourth cam through hole are fitted to each other to fix the shape of the track, And a second track variable rod for changing the position of the second track variable rod.
The method of claim 1,
A first spring mounting groove having a diameter larger than that of the first track variable rod is formed in a part of the cam where the first track variable rod is inserted, and a first spring is embedded in the first spring mounting groove, Is fixed to the first track variable rod and the other end is fixed to the first spring mounting groove to provide an elastic return force to the first track variable rod.
The method of claim 1,
A second spring mounting groove having a diameter larger than that of the second track variable rod is formed in a part of the cam where the second track variable rod is inserted, and a second spring is embedded in the second spring mounting groove, Is fixed to the second track variable rod and the other end is fixed to the second spring mounting groove to provide a resilient return force to the second track variable rod.
The method of claim 1,
Wherein the end portion of the first and second track variable rods protruding outwardly of the cam further comprises a grip for gripping.
KR1020130035039A 2013-04-01 2013-04-01 Cam apparatus in circular knitting machine KR20140119425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130035039A KR20140119425A (en) 2013-04-01 2013-04-01 Cam apparatus in circular knitting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130035039A KR20140119425A (en) 2013-04-01 2013-04-01 Cam apparatus in circular knitting machine

Publications (1)

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KR20140119425A true KR20140119425A (en) 2014-10-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130035039A KR20140119425A (en) 2013-04-01 2013-04-01 Cam apparatus in circular knitting machine

Country Status (1)

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KR (1) KR20140119425A (en)

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