KR20050123449A - Apparatus for winding yarn - Google Patents

Abstract

frame; A cam rotatably installed on the frame, the cam including a cylindrical cam having a guide groove formed thereon, and a traverse member coupled to the guide groove to guide the fiber yarn by linearly reciprocating according to the rotation of the cylindrical cam. Unit; And a bobbin unit to which a bobbin for winding the fiber yarn guided by the traverse member is mounted, wherein the one cycle movement of the traverse member includes a plurality of left turning points (P ₁ , P ₃ , P). ₅ , P ₇ ... P _2n-1 ) and a right turning point P ₂ , P ₄ , P ₆ ,... P _2n and a plurality of sub-paths formed between the turning points, wherein the traverse member The width (W _n ) of the _nth subpath of has the following relationship: W _n = | P _{n + 1} -P _n | <W _{0 where} | P _{n + 1} -P _n | indicates the displacement distance of the traverse member between the turning point P _{n + 1} and the turning point P _n , and W ₀ is the winding of the fiber yarn wound on the bobbin And a left turning point and a right turning point, respectively, are disclosed in which a fiber yarn winding device is not located on the same line with respect to the winding direction of the fiber yarn.

Description

Fiber Yarn Winding Device {apparatus for winding yarn}

The present invention relates to a fiber yarn winding device, and more particularly, to a fiber yarn winding device for preventing a saddle phenomenon in which the winding thickness of the fiber yarn wound on the bobbin becomes thick at both ends or a specific portion of the bobbin.

In general, a fiber yarn winding device is a device for winding a continuously supplied thread to a bobbin, and is installed to reciprocate at regular intervals so as to guide a thread supply part capable of supplying a thread and a thread supplied from the thread supply part. It comprises a plurality of traverse members and a bobbin unit rotatably provided with a plurality of bobbins so that the thread guided by the traverse member can be wound around the bobbin.

The traverse member is slidably coupled to the groove formed on the surface of the rotating cylindrical cam to guide the winding of the fiber yarn while periodically reciprocating as the cylindrical cam rotates. 10) and an example of the traverse member 20 are shown in FIG.

As shown in the drawing, the guide hole 21 formed on the front surface of the traverse member 20 is inserted and guided through the fiber yarn. The rear side of the traverse member 20 is formed with a circular guide protrusion 22, which is slidably coupled while being inserted into the guide groove 11 of the cylindrical cam 10. Therefore, when the cylindrical cam 10 rotates, the traverse member 20 reciprocates left and right by sliding the guide protrusion 22 along the guide groove 11.

This operation will be described in more detail with reference to FIGS. 2A and 2B. 2A illustrates a guide groove 11 of the cylindrical cam 10 deployed. Referring to the drawings, when the cylindrical cam 10 rotates once, the guide protrusion 22 of the traverse member 20 coupled in the guide groove 11 starts at the initial point P _S to guide the guide groove 11. It is then diverted at the pole (switch point) P _H and then back to the initial point P _s . Therefore, the traverse member 20 winds the fiber yarn in the bobbin (not shown) while reciprocating one stroke by the width W corresponding to the width of the fiber yarn wound on the bobbin. The traverse member 20 winds up the fiber yarn in the bobbin while repeating the above reciprocating motion. In FIG. 2B, the reciprocating motion of the traverse member 20 is schematically represented. In other words, the traverse member 20 winds up the fiber yarn while reciprocating between the initial point P _s and the turning point P _H with respect to the winding outer circumferential surface S of the bobbin.

However, in the conventional fiber yarn winding method as described above, the fiber yarn is wound while reciprocating between the initial point P _s and the turning point P _H , so that both edges of the bobbin, that is, the initial point P _s and The fiber yarn winding thickness becomes thicker near the turning point P _H , so that its cross section forms a saddle shape. That is, since the traversing member 20 is always changed in the direction of movement at the turning point (P _H ) of the same position, the winding cumulative thickness of the fiber yarn in the straight region passing through the turning point (P _H ) is larger than in other regions.

This saddle phenomenon causes problems such as unstable loosening of the fiber yarn during the subsequent maritime operations, such as breaking easily or failing to secure driving stability.

The present invention was devised to solve the above problems, and includes a plurality of turning points within one cycle of the reciprocating motion of the traverse member, and the turning points have a saddle phenomenon of the fiber yarn wound on the bobbin due to their different positions. The object is to provide a fiber yarn winding that does not occur.

Fiber yarn winding apparatus according to the present invention to achieve the above object, the frame; A cam rotatably installed on the frame, the cam including a cylindrical cam having a guide groove formed thereon, and a traverse member coupled to the guide groove to guide the fiber yarn by linearly reciprocating according to the rotation of the cylindrical cam. Unit; And a bobbin unit to which a bobbin is mounted to wind the fiber yarn guided by the traverse member.

One cycle of the traverse member includes a plurality of left turning points (P ₁ , P ₃ , P ₅ , P ₇ ... P _2n-1 ) and a right turning point (P ₂ , P ₄ , P ₆ , ... P _2n). ) And a plurality of sub-paths formed between the switch points,

The width W _n of the nth subpath of the traverse member has the following relationship, and W _n = | P _{n + 1} -P _n | <W _{0 where} | P _{n + 1} -P _n | indicates the displacement distance of the traverse member between the turning point P _{n + 1} and the turning point P _n , and W ₀ is the winding of the fiber yarn wound on the bobbin Width), the left turning point and the right turning point are not located on the same line with respect to the winding direction of the fiber yarn, respectively.

Preferably, the width W _{n + 1} of the n + 1 th subpath of the traverse member is smaller than the width W _n of the nth subpath.

More preferably, an interval G _n is defined between adjacent left turn points and right turn points, and defined as G _n = | P _{n + 1} -P _n-1 | > 0, the intervals G _n between the respective switching points are set to be equal to each other.

In addition, the minimum travel width W _min of the sub path may be set to be smaller than or equal to the minimum distance G _min between the switch points.

According to a further embodiment of the present invention, the first n + 1 the width of the second sub-path of the traverse members (W _{n + 1)} is a major fiber yarn take-up device is provided than the width (W _n) of the n th sub-channel .

According to another embodiment of the present invention, the movement path of the traverse member,

A path reduction area composed of sub paths whose motion range is gradually or gradually reduced,

The motion width is to include at least one of the path increasing areas consisting of sub paths that gradually or stepwise increase.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Figure 3 shows a fiber yarn winding apparatus according to a preferred embodiment of the present invention. Referring to the drawings, the fiber yarn winding apparatus of the present invention includes a frame 110, a cam unit installed on the frame 110, and a bobbin unit provided below the cam unit.

The cam unit includes a cam box 200 installed in the frame 110 and a cylindrical cam 210 rotatably installed in the cam box 200. A guide slit 200a is formed on the front surface of the cam box 200, and a plurality of traverse members 130 are installed to reciprocate along the longitudinal direction of the bobbin unit through the guide slit 200a.

The plurality of traverse members 130 are spaced apart from the frame 110 at predetermined intervals. The traverse member 130 is formed with a guide groove (see 21 in FIG. 1) for guiding the fiber yarn 100 supplied from the fiber yarn supply unit (not shown).

A guide groove 220 is formed on the outer circumferential surface of the cylindrical cam 210, and the traverse member 130 is coupled to the guide groove 220 to slide. Therefore, the rotational motion of the cylindrical cam 210 is converted into a linear reciprocating motion of the traverse member 130 by the guide groove 220. The guide groove 220 may be formed in various shapes to correspond to the reciprocating motion path of the traverse member 130.

The bobbin unit is provided with a cylindrical holder 165 rotatably supporting the bobbin 160 to which the fiber yarn 100 is wound, and the holder 165 is equipped with a plurality of bobbins 165. Preferably, the holder 165 may be provided with a vacuum suction hole (not shown) to firmly support the bobbin 165 fitted to the outer circumferential surface thereof. Therefore, as the bobbin 165 rotates as the holder 165 rotates, the traverse member 130 reciprocates in the rotation axis direction of the bobbin, and the fiber yarn is wound around the winding outer circumferential surface of the bobbin 165.

According to the present invention, the traverse member is diverted at the turning points of different positions, an embodiment of which is shown in FIG. 4. 4 is a schematic diagram showing the reciprocating motion path of the traverse member with respect to the winding outer circumferential surface S of the bobbin.

Referring to the drawings, the traverse member of the present embodiment starts from the initial point P ₀ according to the rotation of the cylindrical cam and returns to the initial point P ₀ again through the plurality of sub-paths N ₁ to N ₆ . Traverse a starting member a first point (P ₀₎ movement path, to return back to the first point (P ₀₎ is defined as one cycle.

According to the present embodiment, a plurality of left turning points P ₁ , P ₃ , P ₅ , P ₇ ... P _2n-1 and a plurality of right turning points P ₂ are included in the motion path corresponding to one cycle of the traverse member. , P ₄ , P ₆ , ... P _2n ), and the left turning point P ₁ , P ₃ , P ₅ , P ₇ ... P _2n-1 and the right turning point P ₁ , P ₃ , Sub paths N ₁ to N ₆ are formed between P ₅ , P ₇ ... P _2n-1 . The left turning point (P ₁ , P ₃ , P ₅ , P ₇ ... P _2n-1 ) is a point that the traverse member for example, the movement direction from the left direction to the right direction, the right turning point (P ₂ , P ₄ , P ₆ , ... P _2n ) correspond to the point where the traverse member reverses the direction of movement from right to left.

In the illustrated figure, the first subpath N ₁ of the traverse member is formed between the first turning point P ₁ and the second turning point P ₂ , and the second sub path N ₂ is the second turning point P ₂ . And between the third turning point P ₃ . In the same way, the nth subpath N _n of the traverse member is formed between the nth switching point P _n and the n + 1th switching point P _{n + 1} .

In addition, the movement width W ₁ of the first subpath N ₁ corresponds to the interval between the second turning point P ₂ and the first turning point P ₁ , and the movement of the second subpath N ₂ is performed. The width W ₂ corresponds to the interval between the third turning point P ₃ and the second turning point P ₂ . Similarly, the motion width W _n of the n th subpath N _n corresponds to the interval between the n + 1 th switching point P _{n + 1} and the n th switching point P _n .

W _n = P _{n + 1} -P _n |

Here, '| P _{n + 1} -P _n |' indicates the displacement interval of the traverse member with respect to the turning point P _{n + 1} and the turning point P _n .

According to the present invention, the movement width W _n of the subpath of the traverse member formed between the switching points is smaller than the winding width W _{0 of} the fiber yarn wound on the bobbin by the traverse member.

W _n <W ₀

In addition, according to the present invention, the left turning point (P ₁ , P ₃ , P ₅ , P ₇ ... P _2n-1 ) and the right turning point (P ₂ , P ₄ , P ₆ , ... P _{2 n} ) Since they are each not located on the same line as the winding direction of the fiber yarn, that is, the rotation direction of the bobbin, the traverse member is switched in the direction of movement at the transition points at different positions.

Specifically, the traverse member has a movement in the right direction at the left turning points P ₁ , P ₃ , P ₅ , P ₇ ... P _{2n-1 of} different positions, and at the same time, the right turning points P of different positions. ₂ , P ₄ , P ₆ , ... P _2n ), the movement is shifted to the left.

Therefore, during the one-cycle movement of the traverse member, since there are no switching points lying on the same line with respect to the winding direction of the fiber yarn, the fiber yarn is not accumulated and wound up on the turning point or the extension line of the switching point as in the prior art.

Another preferred embodiment of the present invention is shown in FIG.

Referring to FIG. 5, in this embodiment, the movement path of the traverse member includes a plurality of sub paths N ₁ to N ₈ whose width decreases gradually or stepwise within one cycle. In the present embodiment, as described above, the width W _n of the nth subpath is defined as follows.

W _n = P _{n + 1} -P _n | <W ₀

The left turning points P ₁ , P ₃ , P ₅ , P ₇ ... P _2n-1 and the right turning points P ₂ , P ₄ , P ₆ , ... P _2n , respectively, Not on the same line

At the same time, the motion width W _{n + 1 of the} n + 1 th subpath N _{n + 1} is smaller than the motion width W _n of the _nth subpath N _n so that the subpaths may be gradually or stepwise. The length is reduced. In the present specification and claims, 'gradual decrease (increase)' refers to a case where the intervals between the switch points are different as described below, and 'step decrease (increase)' corresponds to a case where the intervals between the switch points are the same.

W _{n + 1} <W _n

Accordingly, each of the left turning points P ₁ , P ₃ , P ₅ , P ₇ ... P _2n-1 and the right turning points P ₂ , P ₄ , P ₆ , ... P _2n that are adjacent to each other A gap G _n is formed between them as shown in FIG. 5.

G _n = P _{n + 1} -P _n-1 | > 0

The intervals G _n between the switch points can be different and are preferably set identically. Alternatively, the spacing G _n between the switch points may be reduced or increased at a predetermined rate.

Further, the motion width of the traverse member, i.e., the minimum motion width W _min , for the lowest sub-path N _min may be appropriately set, but preferably less than or equal to the distance G _n between the switch points. Is set. If the interval G _n between the switch points is different from each other, the interval G _n is set to be smaller than or equal to the minimum interval G _min .

W _min ≤ G _min

In this case, since the trajectory path of the traverse guide has the turning points distributed at intervals corresponding to the interval G _n between the turning points, the fiber yarns wound on the bobbin can be wound to a uniform thickness without overlapping. have. It can be seen that the denser the gap G _n between the turning points, the more uniformly the fiber yarn can be wound.

A reciprocating motion of the traverse member according to another preferred embodiment of the invention is shown in FIG. 6.

The motion path of the traverse member shown in FIG. 6 includes a plurality of sub paths N ₁ to N ₈ in which the width of the path increases gradually or stepwise within one cycle.

In this embodiment, the interval G _n between the switch points is defined as follows.

G _n = P _{n + 2} -P _n | > 0

Also,

At the same time, the motion width W _{n + 1} of the _{n +} 1th subpath N _{n + 1} is greater than the motion width W _n of the _nth subpath N _n so that the subpath is gradually or stepwise. The length is increased.

W _{n + 1} > W _n

Also in this case, the minimum travel width W _min of the traverse member can be appropriately set, but is preferably set to be smaller than or equal to the interval G _n between the switching points. If the interval G _n between the switch points is different from each other, the interval G _n is set to be smaller than or equal to the minimum interval G _min .

According to another embodiment of the present invention, the one-cycle reciprocating motion of the traverse member may include both a progressively or gradually decreasing subpath and a progressively or gradually increasing subpath, which is illustrated in FIG. 7. .

That is, as shown in the figure, the sub paths N _{1 to} N ₄ constitute path reduction areas as paths whose motion width is gradually or stepwise reduced, as in the embodiment shown in FIG. The paths N ' _{1 to} N' ₄ constitute path increasing areas as paths whose motion width increases gradually or stepwise as in the embodiment shown in FIG. 6.

Of course, the left side in this embodiment the turning point _{(P 1, P 3, P} 5, P 7 ... P 2n-1) and a right turning point (P _2, P _4, P _6, P ... _2n) are fiber's It shall not lie on the same line in the direction of rotation.

According to the fiber yarn winding device of the present invention, since the switching point at which the traversing member's movement direction is changed does not lie on the same line with the fiber yarn winding direction, the fiber yarns are prevented from overlapping and stacking as in the prior art. Therefore, when the fiber yarn is wound on the bobbin by the fiber yarn winding apparatus of the present invention, a saddle phenomenon in which a specific portion becomes thick can be prevented.

1 is a schematic partial perspective view showing the configuration of a cylindrical cam and a traverse member of a conventional fiber yarn winding apparatus.

FIG. 2A is a diagram schematically showing a guide groove formed in the cylindrical cam of FIG. 1 in a plan view.

FIG. 2B is a diagram schematically showing the reciprocating motion path of the traverse member of FIG. 1 with respect to the outer peripheral surface of the bobbin. FIG.

3 is a view showing a schematic configuration of a fiber yarn winding apparatus according to a preferred embodiment of the present invention.

4 is a diagram schematically showing the movement path of the traverse member with respect to the winding outer peripheral surface of the bobbin in the fiber winding apparatus according to the preferred embodiment of the present invention.

5 is a diagram schematically showing the movement path of the traverse member with respect to the outer peripheral surface of the bobbin in the fiber winding apparatus according to another preferred embodiment of the present invention.

6 is a diagram schematically showing the movement path of the traverse member with respect to the outer peripheral surface of the bobbin in the fiber yarn winding apparatus according to another preferred embodiment of the present invention.

7 is a diagram schematically showing the movement path of the traverse member with respect to the outer peripheral surface of the bobbin in the fiber yarn winding device according to another preferred embodiment of the present invention.

Claims (8)

frame; A cam rotatably installed on the frame, the cam including a cylindrical cam having a guide groove formed thereon, and a traverse member coupled to the guide groove to guide the fiber yarn by linearly reciprocating according to the rotation of the cylindrical cam. Unit; And a bobbin unit to which a bobbin is mounted to wind the fiber yarn guided by the traverse member. One cycle of the traverse member includes a plurality of left turning points (P ₁ , P ₃ , P ₅ , P ₇ ... P _2n-1 ) and a right turning point (P ₂ , P ₄ , P ₆ , ... P _2n). ) And a plurality of sub-paths formed between the switch points, The width W _n of the nth subpath of the traverse member has the following relationship, W _n = P _{n + 1} -P _n | <W ₀ (Where, P _{n + 1} -P _n | indicates the displacement distance of the traverse member between the turning point P _{n + 1} and the turning point P _n , and W ₀ indicates the winding width of the fiber yarn wound on the bobbin. ) And the left turning point and the right turning point are not located on the same line with respect to the winding direction of the fiber yarn, respectively. The method of claim 1, Wherein the width of the n + 1-th sub-path of the traverse members (W _{n + 1)} is a textile yarn winding device that is smaller than the width (W _n) of the n th sub-channel. The method of claim 2, An interval G _n is defined between the left turning point and the right turning point that are adjacent to each other, and are defined as follows. G _n = P _{n + 1} -P _n-1 | > 0 Fiber G winding apparatus, characterized in that the interval (G _n ) between each of the switch points are the same. The method according to claim 2 or 3, The minimum travel width (W _min ) of the sub-path is set to be less than or equal to the minimum interval (G _min ) between the switch points. The method of claim 1, The width of the n + 1-th sub-channel of said traverse member (W _{n + 1)} is a textile yarn winding device is larger than a width (W _n) of the n th sub-channel. The method of claim 5, An interval G _n is defined between the left turning point and the right turning point that are adjacent to each other, and are defined as follows. G _n = P _{n + 2} -P _n | > 0 Fiber G winding apparatus, characterized in that the interval (G _n ) between each of the switch points are the same. The method according to claim 5 or 6, The minimum travel width (W _min ) of the sub-path is set to be less than or equal to the minimum interval (G _min ) between the switch points. The method of claim 1, The movement path of the traverse member, A path reduction area composed of sub paths whose motion range is gradually or gradually reduced, A fiber yarn winding device, characterized in that it comprises at least one of a path increasing area composed of sub paths whose motion width increases gradually or stepwise.