KR102199261B1 - Circular knitting machine - Google Patents

Abstract

The present invention relates to a circular knitting machine for fabrics with easy adjustment of the height of a knitting cam. More specifically, the present invention comprises: a cylindrical ring chain cylinder providing a movement path for several knitting needles in a vertical direction; a knitting cam box arranged and fixed in a ring shape on the outer periphery of the cylinder; a dial disposed on the outer periphery of the uppermost part of the cylinder and rotationally driven together with the cylinder, and having a plurality of dial grooves formed in the knitting needle direction; a plurality of sinkers installed in the dial grooves; a sinker ring positioned on an upper part of the dial; and a plurality of sinker cams installed on the sinker ring for advancing and retreating the sinker toward the knitting needle side. According to the present invention, it is possible to increase the productivity by shortening the relocation work time of the knitting cam unit according to the pattern change.

Description

Fabric-type circular knitting machine with easy height adjustment of knitting cam {Circular knitting machine}

The present invention relates to a circular knitting machine for fabrics that is easy to adjust the height of the knitting cam, and more specifically, the knitting cam unit is configured to have a height of 7 or more steps, and a fine gap control of the knitting cam unit is possible. It relates to a fabric-type circular knitting machine that is easy to adjust the height of the knitting cam to enable the knitting of.

A circular knitting machine is a circular knitting machine, and it is arranged in a circle to make a circular knitted fabric while the yarns move from side to side. The ordinary pile-type fabric manufactured by such a circular knitting machine is a sinker by a single knitting cam and a single sinker cam. The and knitting needles are knitted by a circular knitting mechanism that operates to form a knitted fabric.

1 is a perspective view showing a schematic structure of a circular knitting machine for knitting a non-Jacquard type fabric according to the prior art. The circular knitting machine has a donut-shaped cylinder 10, a circular knitting mechanism 100 coupled to the side of the cylinder, a knitting yarn supplying member 210 and 220 supplying knitting yarn to the circular knitting mechanism, a frame 200 supporting the knitting yarn supplying member, and a knitted fabric It includes a storage member 400 for accommodating 300 and a support 500. And, the circular knitting mechanism 100 includes a knitting needle 5 and a sinker 40 that rotates together with a cylinder, and a single knitting cam 20 and a sinker cam guiding the upward and downward movements and forward and backward movements of the knitting needles and sinkers. . The knitting needle 5 and the sinker 40 each have a knitting cam and a butt 5a that is fitted into a recess (or groove) formed in the sinker cam, and while rotating together with the cylinder, they perform vertical motion or forward and backward motion. Fibrous tissue and piles are formed by performing the knitting operation at high speed.

Typical velor fabrics are knitted through a circular knitting machine that forms a knitted fabric by operating the sinker and knitting needle by a single sinker cam and one-stage knitting cam.By changing the pile knitting in various ways, stripes, squares, or diamonds are expressed. To do so, the loops came out to the bottom of the knitted fabric and the fabric did not become flat, and the bottom was weak, so the durability of the fabric was poor. Therefore, until now, most velor fabrics have formed a pile uniformly over the entire surface. So, if you wanted to change the appearance of the pyeonpo, the pattern of the dough was uniform.

However, everyone who is involved in this field recognizes that in order to meet the tastes of consumers and produce high value-added fabrics, it is necessary to change the organization of velor fabrics and produce various and colorful patterns. Since no special design of fabric has been developed, and the improvement of the circular knitting machine for knitting is insignificant, it was impossible to knit a new atmosphere with such existing circular knitting machines for velor fabrics.

Therefore, in response to the request for a circular knitting machine for textiles that overcomes the irrationality of the conventional circular knitting machine for textiles and enables the knitting of various patterns, and facilitates rearrangement of the knitting cam to produce various patterns, patent registration No. 1566280 In the arc, the knitting cam was composed of four stages.

2 and 3 are views showing a four-stage knitting cam box proposed in Patent Registration No. 1566280 and a knitting cam unit coupled to the knitting cam box in an exploded state.

The knitting cam unit proposed in the conventional patent registration No. 1566280 has a structure in which four horizontally and three vertically, i.e., 12 knitting cam units 22 are arranged, and a knitting cam along the longitudinal direction on the sliding fastening bar 21 Allow the unit 22 to be engaged. In this conventional patent registration No. 1566280, the knitting cam unit 22 consisting of four stages can be simply arranged in a line on the sliding fastening bar 21, and the operator can easily adjust the fastening height of the sliding fastening bar 21. By allowing fine adjustment, the working time for rearranging the knitting cam units for knitting different patterns is shortened, but the demand for more diverse patterns knitting through a higher number of stages is increasing.

Accordingly, in order to fasten the knitting cam unit 22 having a height of 7 or 8 stages, the length of the sliding fastening bar 21 becomes longer, and this height prevents the gap between the knitting cam units 22 and the fixed groove difference. Accordingly, there is a problem that precise fine adjustment is not made only by adjusting the height of the sliding fastening bar 21 as in the related art.

Therefore, aside from the conventional multi-stage knitting cam unit combination method and height adjustment method, accurate height adjustment even if the knitting cam unit is combined in a high stage of 7 stages or more through the combined height of the knitting cam unit and fine gap control between the knitting cam units. There is a growing demand for circular knitting machines for fabrics that enable this to be possible to knit more various patterns.

Korean Patent Registration No. 893694 Korean Patent No. 1566280

The present invention was conceived to solve the above problems, and an object of the present invention is to configure a knitting cam with a height of 7 or more by enabling fine height adjustment of a knitting cam unit installed up and down, so that the knitting of various patterns is possible. At the same time, it is possible to facilitate the arrangement of various arrangements of knitting cams in the knitting cam box.

According to one aspect of the present invention for achieving the above object, the cylinder is a cylindrical ring chain that rotates in a horizontal plane with a center position as an axis and provides a moving passage for several knitting needles in a vertical direction, and an outer circumference of the cylinder. It is arranged in a ring shape on the side and fixed, and the knitting needle is raised and lowered by forming a passage through which the butt of the knitting needle is inserted, but a guide groove is formed in the vertical direction on the inner surface, and one side is formed on the guide groove. The other side is inserted into the guide groove and the other side protrudes to the outside of the guide groove and slides in the vertical direction of the guide groove, and the sliding fastening bar is coupled with a fastening screw on the outer side of the knitting cam box, and the other side of the sliding fastening bar on one side Including a knitting cam unit in which an insertion groove having a shape corresponding to a side surface is formed in a vertical direction and coupled to the sliding fastening bar, and a passage of a predetermined shape is formed on the other side of the knitting needle through which the butt of the knitting needle is inserted, the knitting cam A knitting cam box in which a plurality of units are coupled in the longitudinal direction of the sliding fastening bar, a dial disposed on the outer circumference of the uppermost portion of the cylinder and driven to rotate with the cylinder and having a plurality of dial grooves formed in the knitting direction, and the dial groove A plurality of sinkers installed on the dial, a sinker ring positioned above the dial, and a plurality of sinker cams installed on the sinker ring to advance and retreat the sinker toward the side of the needle; In the circular knitting machine for fabrics comprising, on the other side of the sliding fastening bar, each fastening hole for fastening the plurality of knitting cam units is formed through incision at a certain length at a certain distance along the vertical length direction, and each of the knitting cams A bolt hole communicating with each of the fastening holes is formed in the unit, and the bolt is fastened in a line with a certain height of the fastening hole through the bolt hole to fasten the nut to the end of the bolt, and on the insertion groove of each knitting cam unit. A spacing adjustment groove in a semi-conical shape is formed at the bottom edge to narrow the pipe diameter inward, and a gap adjustment hole is formed through the other side of the sliding fastening bar at a position corresponding to the gap adjustment groove of the knitting cam unit arranged up and down. , A conical sliding pressure protrusion is coupled to the front end so that one end is inserted into the spacing adjustment groove, and a spacing adjustment bolt to which the screw head exposed to one side of the sliding fastening bar is coupled is fastened to the spacing control hole. , The sliding pressing protrusion is moved by rotating the screw head, and the gap between the knitting cam units disposed in the upper and lower portions is adjusted while being in close contact with the gap adjusting groove.

In addition, the guide grooves are formed in two rows spaced apart from the knitting cam box at regular intervals, and the knitting cam units are coupled in at least 7 stages along the longitudinal direction of the sliding fastening bar.

Further, the other side of the sliding fastening bar is formed so as to correspond to the number of the knitting cam units along the longitudinal direction, and the insertion groove of the knitting cam unit is formed with a coupling protrusion inserted into the fixing groove.

In addition, the fixing groove is formed in a predetermined length up and down,

A fine adjustment hole is formed through the inner side of the lower side of the fixing groove from the other side of the sliding fastening bar to one side, and a conical fine adjustment screw is inserted at one end inside the fine adjustment hole, and the lower end of the coupling protrusion The surface is seated on one end side of the fine adjustment screw, and as the fine adjustment screw is moved by tightening the fine adjustment screw, the height of the seating surface is finely adjusted as the coupling protrusion slides to the surface of the fine adjustment screw.

According to the present invention as described above, the knitting cam unit is composed of 7 stages so that more various patterns can be knitted, so that the range of use is very wide, and may occur when installing a plurality of vertically due to the manufacturing tolerance of each knitting cam unit. The possible distance is precisely controlled by individually controlling the installation height of each knitting cam unit through the fine adjustment screw, and furthermore, the distance between the knitting cam units can be separately adjusted through the gap adjustment bolt to accurately form the movement path of the knitting needle. It is possible to prevent defects from occurring in knitting work of specific patterns such as diagonal patterns, and there is an effect of increasing productivity by shortening the working time for rearrangement of the knitting cam unit according to such pattern change.

1 is a perspective view showing a schematic structure of a circular knitting machine for knitting a non-Jacquard type fabric according to the prior art.
2 and 3 are views showing a four-stage knitting cam box proposed in Patent Registration No. 1566280 and a knitting cam unit coupled to the knitting cam box in an exploded state.
Figure 4 is a schematic cross-sectional view showing the knitting mechanism of the circular knitting machine for fabrics according to the present invention.
5 is a perspective view showing the inner side of the knitted cam box according to the present invention.
6 is a view showing a state in which the knitting cam unit coupled to the knitting cam box according to the present invention is disassembled.
7 is a perspective view showing a coupling protrusion formed on the knitting cam unit according to the present invention.
8 is a perspective view showing in detail a part of the sliding fastening bar according to the present invention.
9 is a view showing in detail a part of a cross section of a state in which the knitting cam unit is fastened to the sliding fastening bar.

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

Figure 4 is a schematic cross-sectional view showing the knitting mechanism of the circular knitting machine for fabric according to the present invention, Figure 5 is a perspective view showing the inner side of the knitting cam box according to the present invention, Figure 6 is coupled to the knitting cam box according to the present invention It is a view showing the disassembled state of the knitting cam unit, Figure 7 is a perspective view showing a coupling protrusion formed on the knitting cam unit according to the present invention, Figure 8 is a perspective view showing in detail a part of the sliding fastening bar according to the present invention, 9 is a view showing in detail a part of a cross section of a state in which the knitting cam unit is fastened to the sliding fastening bar.

Referring to the drawings, the circular knitting machine for textiles according to the present invention rotates in a horizontal plane with a center position as an axis and provides a moving passage for several knitting needles 5 in a vertical direction, a cylinder 10 and a cylinder A knitting cam box 20 which is arranged and fixed in a ring shape on the outer circumferential side of (10), and forms a passage in which the butt 5a of the knitting needle 5 is inserted, thereby raising and lowering the knitting needle 5, A dial 30 disposed on the uppermost outer circumference side of the cylinder 10 and driven to rotate with the cylinder 10 and having a plurality of dial grooves in the direction of the needle 5, and a plurality of sinkers 40 installed in the dial groove , It is configured to include a sinker ring 50 located on the upper portion of the dial 30, and a plurality of sinker cams 60 installed on the sinker ring 50 to advance and retreat the sinker 40 toward the knitting needle 5 .

On the inner side of the knitting cam box 20, a plurality of knitting cam units 22 are arranged for knitting a specific pattern. In the present invention, 7 horizontally and 2 vertically, that is, 14 knitting cam units 22 Be placed.

To this end, guide grooves 20a are formed in two rows at regular intervals on the inner side of the knitted cam box 20 in the vertical direction, and sliding fastening bars 21 are inserted into each of the guide grooves 20a.

This sliding fastening bar 21 is installed such that one side is inserted into the guide groove 20a and the other side protrudes to the outside of the guide groove 20a, and slides vertically on the guide groove 20a. Height is adjusted. And after the height adjustment is completed, it is fixed by a fastening screw on the outer surface of the knitting cam box 20.

And on the sliding fastening bar 21, there is a knitting cam unit 22 is coupled in 7 stages as shown in the figure along the longitudinal direction, such a knitted cam unit 22 is on one side and the other side of the sliding fastening bar 21 The insertion groove (22a) of the corresponding shape is formed in the vertical direction so that the sliding fastening bar (21) is inserted into the insertion groove (22a), and the butt (5a) of the knitting needle (5) on the other side of the knitting cam unit (22) ) Is formed a concave portion (22b) that is a passage of a certain shape to be inserted.

As the butt 5a of the knitting needle 5 moves along the concave portion 22b of the knitting cam unit 22 of a specific shape arranged in the horizontal direction, the knitting needle 5 moves up and down.

On the other side of the sliding fastening bar 21, fastening holes for fastening a plurality of knitting cam units 22 composed of 7 stages are formed at regular intervals along the vertical direction, respectively, and the fastening holes 21b are It is cut to a predetermined length in the vertical longitudinal direction so as to penetrate through one side of the sliding fastening bar (21). And the knitting cam unit 22 is formed with a bolt hole (22d) communicating with the fastening hole (21b), the bolt through the bolt hole (22d) fastening in a line of a certain height of the fastening hole (21b), and then Fix it by fastening a nut at the end. In the present invention, the fastening hole is cut to a predetermined length up and down so that the height of each knitting cam unit 22 can be separately adjusted as necessary.

In addition, on the other side of the sliding fastening bar 21, a plurality of fixing grooves 21a are formed at regular intervals so as to correspond to the number of knitting cam units 22 along the longitudinal direction, and the insertion groove of the knitting cam unit 22 ( In 22a), the engaging protrusion 22c inserted into the fixing groove 21a is formed at a specific position, and the operator needs to separately adjust the position of the knitting cam unit 22 fastened to the sliding fastening bar 21 in 7 stages. Without, the position is adjusted by inserting the coupling protrusion 22c into the fixing groove 21a. Then, the knitting cam unit 22 is fastened to the sliding fastening bar 21 with bolts as described above and fixed.

In this way, the knitting cam units 22 are connected in a row on the sliding fastening bar 21, and then the sliding fastening bar without the need to change the position of the knitting cam units 22 one by one in order to align the height of the knitting cam unit 22. Sliding (21) up and down on the guide groove (20a) to ensure accurate position alignment.

In addition, the fixing groove (21a) in the present invention is formed in a predetermined length up and down, and a fine adjustment hole (21c) from the other side of the sliding fastening bar (21) to one side on the inner side of the lower side of the fixing groove (21a) It is formed through the fine adjustment hole (21c) is inserted into a fine adjustment screw (21e) is formed in a conical shape at one end facing the coupling protrusion (22c) is inserted into the lower surface of the coupling protrusion (22c) is a fine adjustment screw ( 21e) to be supported on the top end side. At this time, the fine adjustment screw (21e) can be tightened using a tool such as a screwdriver from one side of the sliding fastening bar (21), and by this tightening, the fine adjustment screw (21e) is moved toward the knitting cam unit (22). As the coupling protrusion 22c slides from one end side of the fine adjustment screw 21e, the height of the seating surface is moved up and down so that the installation height of each knitting cam unit 22 is finely adjusted, so that the knitting cam consisting of seven stages It is possible to reduce the tolerance due to the installation of the unit 22.

In addition, in the upper and lower end corners of the insertion grooves 22a of the knitting cam unit 22, semi-conical spacing adjustment grooves 22f are formed to face each other so that the pipe diameter is narrowed inward, and the sliding fastening bar 21 On the other side, a gap adjustment hole (21d) is formed through a position corresponding to the gap adjustment groove (22f) of the knitting cam unit (22) arranged up and down, and one end is inserted into the gap adjustment groove (22f). A conical sliding pressing protrusion (22e-1) is coupled to the front end, and a gap adjustment bolt (22e) to which the screw head (22e-2) exposed to one side of the sliding fastening bar (21) is coupled to the rear end is spaced. It is fastened inside the adjustment hole (21d), the screw head (22e-2) is rotated to move the sliding pressing protrusion (22e-1) toward the knitting cam unit (22), so that the sliding pressing protrusion (22e-1) is upper and lower As the knitting cam unit 22 is in close contact with the gap adjustment groove 22f of the knitting cam unit 22 disposed in the knitting cam unit 22, the gap between the knitting cam units 22 is finely adjusted as the knitting cam unit 22 opens up and down.

In the present invention, the knitting cam unit 22 is composed of 7 stages, so that it is fixed on the sliding fastening bar 21 at regular intervals, but occurs when a plurality of the knitting cam units 22 are installed vertically due to the manufacturing tolerance of each knitting cam unit 22 The gap that can be made is very large, allowing fine control over it. That is, as in the above, the fine adjustment screw 21e is rotated to adjust the installation height of each knitting cam unit 22, and further, the gap between the knitting cam units 22 is rotated by rotating the spacing adjustment bolt 22e. By allowing separate fine adjustment of the knitting needle 5, the movement path of the knitting needle 5 is formed more accurately so that the knitting of a specific pattern such as a diagonal pattern can be stably and without defects, and the fastening height of the knitting cam is finely adjusted. The adjustment is possible to shorten the working time for rearrangement of the knitting cam unit 22 and prevent defects from occurring.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the scope of the appended claims will include such modifications or variations that fall within the gist of the present invention.

5: knitting needle 5a: butt
10: cylinder
20: program cam box 20a: guide groove
21: sliding fastening bar 21a: fixing groove
21b: fastening hole 21c: fine adjustment hole
21d: gap adjustment hole 21e: fine adjustment screw
22: knitted cam unit 22a: insertion groove
22b: concave portion 22c: coupling protrusion
22d: bolt hole 22e: gap adjustment bolt
22e-1: sliding joining protrusion 22e-2: screw head
22f: Gap adjustment groove
30: dial
40: sinker
50: Sinkering
60: sinker cam

Claims (4)

A cylinder which is a cylindrical ring chain that rotates in a horizontal plane with the center position as an axis and provides a passage for movement of several knitting needles in a vertical direction;
It is arranged and fixed in a ring shape on the outer circumference side of the cylinder, and by forming a passage in which the butt of the knitting needle is inserted, the knitting needle is raised and lowered, but a guide groove is formed in the vertical direction on the inner surface, and one side Inserted into the guide groove, the other side protrudes to the outside of the guide groove and slides in the vertical direction of the guide groove, a sliding fastening bar coupled with a fastening screw on the outer surface of the knitted cam box, and the sliding on one side Including a knitting cam unit in which an insertion groove having a shape corresponding to the other side of the fastening bar is formed in the vertical direction and is coupled to the sliding fastening bar, and the other side is formed with a constant-shaped passage through which the butt of the knitting needle is inserted. A knitting cam box in which a plurality of knitting cam units are coupled in a longitudinal direction of the sliding fastening bar;
A dial disposed on an outer circumference of an uppermost portion of the cylinder and driven to rotate together with the cylinder and having a plurality of dial grooves formed in the needle direction;
A plurality of sinkers installed in the dial groove;
A sinker ring positioned above the dial;
A plurality of sinker cams installed on the sinker ring to advance and retreat the sinker toward the side of the needle; In the circular knitting machine for textiles comprising,
On the other side of the sliding fastening bar, each fastening hole for fastening the plurality of knitted cam units is formed through incisions at a certain length at a certain distance along the vertical direction, and each of the knitted cam units communicates with the fastening holes. A bolt hole is formed, and the bolt is fastened in a line with a certain height of the fastening hole through the bolt hole to fasten the nut to the end of the bolt,
A semi-conical spacing groove is formed at the upper and lower end corners of the insertion grooves of each of the knitting cam units so that the pipe diameter is narrowed inward, and the other side of the sliding fastening bar corresponds to the spacing adjustment groove of the knitting cam unit arranged up and down. The gap adjustment hole is formed through the gap adjustment groove, and a conical sliding pressing protrusion is coupled to the front end so that one end is inserted into the gap adjustment groove, and the screw head exposed to one side of the sliding fastening bar is combined at the rear end. The height adjustment of the knitting cam, characterized in that the bolt is fastened to the gap adjusting hole, and the sliding pressing protrusion is moved by rotating the screw head, and the gap between the knitting cam units disposed in the upper and lower parts is adjusted while being in close contact with the gap adjusting groove. This easy-to-use circular knitting machine.
The method of claim 1,
The guide groove is formed in two rows spaced apart from the knitting cam box at a certain interval, and the knitting cam unit is combined in at least 7 stages along the longitudinal direction of the sliding fastening bar. Weaving circular knitting machine.
The method of claim 2,
The other side of the sliding fastening bar is formed so as to correspond to the number of the knitting cam units along the longitudinal direction, and the insertion groove of the knitting cam unit is formed with a coupling protrusion inserted into the fixing groove. Fabric type circular knitting machine with easy adjustment of the knitting cam height.
The method of claim 3,
The fixing groove is formed in a predetermined length up and down,
A fine adjustment hole is formed through the inner side of the lower side of the fixing groove from the other side of the sliding fastening bar to one side, and a conical fine adjustment screw is inserted at one end inside the fine adjustment hole, and the lower end of the coupling protrusion The side is seated on one end side of the fine adjustment screw,
A fabric-type circular knitting machine with easy adjustment of the height of a knitting cam, characterized in that the height of the seating surface is finely adjusted while the coupling protrusion slides to the surface of the fine adjustment screw while the fine adjustment screw is moved by tightening the fine adjustment screw. .

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