TWI583841B - Yarn guide apparatus for offset knitting - Google Patents

Description

Yarn guiding device for offset knitting

The present invention relates to a yarn guiding device for supplying a yarn to a knitting needle from an offset position of an action line deviating from a knitting needle in a knitting machine.

In general, a yarn guiding device for supplying a yarn to a knitting needle is provided in the knitting machine. The knitting needle moves along the action line that repeatedly moves up and then descends in order to catch the yarn. A yarn guiding device is disposed within the action line such that the needle can securely catch the yarn.

Another different type of yarn guiding device is a yarn guiding device for offset knitting which guides the yarn from the offset position of the action line from the knitting needle (for example, JP-A-4-316649, JP-A-open 60) -52660).

In the offset feeding, since the knitting needle does not come into contact with the yarn guiding device, it does not cause problems such as abrasion or breakage due to contact. In addition, when the needle is closed due to yarn breakage, if it is usually woven, the needle cannot continue to catch the yarn, and the needle remains closed, which causes the defect of the knitted fabric or becomes a press-off. The reason is therefore the need to implement a human operation that opens the tongue. However, when the yarn is fed biased, the guided yarn acts on the tongue of the rising needle to open the tongue, so the above operation is not required, and the probability of the cloth falling is also lowered very low. Further, since the yarn guiding device for offset knitting does not have to consider the problem of contact with the knitting needle, the structure is simple and can be produced at a lower cost than the conventional yarn guiding device.

In addition, when the yarn guiding device is located in the operating line of the knitting needle, the knitting needle of the knitting needle often enters the yarn exit of the yarn guiding device to cause breakage, etc., and therefore the bias is caused. Feed the yarn. Further, for example, when the yarn guiding device is completely fixed and it is difficult to pass the yarn through the yarn guiding device or the like, the bias feeding is sometimes performed from the structure of the loom.

At the time of offset feeding, the distance from the yarn exit of the yarn guiding device to the knitting point where the knitting needle catches the yarn is long, during which the yarn is not controlled. Therefore, for example, a long fiber yarn having a large number of single fibers or the like constituting a yarn according to the properties of the yarn is wound around the yarn exit of the yarn guiding device, but the single fiber breakage which is likely to spread and spread as it approaches the knitting point ( Filamentation). As a result, sometimes the knitting needle cannot catch all the fibers constituting the yarn, and defects are generated on the knitted fabric.

In addition, there is a case where the yarn passage is moved or the needle is inclined due to a change in the weave structure, and the needle is leaked to the yarn, and as a result, the yarn is deviated from the weaving point. Since the yarn which deviates from the weaving point does not naturally recover, a knitted fabric having defects is mass-produced, and an artificial operation of returning the yarn to the weaving point is required.

When these problems occur, if the yarn is switched from the normal position, since the distance between the yarn exit of the yarn guiding device and the knitting point becomes close, the yarn does not spread and the yarn can be fed normally, that is, regardless of the weave structure. The change can stably feed the yarn, so the above problem can be solved. However, as described above, since some types of looms cannot provide a yarn guiding device at a usual position, in which case only a defective woven fabric can be produced, this problem remains to be solved.

SUMMARY OF THE INVENTION Accordingly, it is a primary object of the present invention to provide a yarn guiding device for offset knitting which can reliably hold all the fibers constituting the yarn at the weaving point even if the yarn is fed by the offset yarn, and is not woven by the weave. The change or the like causes the yarn to deviate from the weaving point, and the yarn can be stably fed.

The present invention for solving the above problems is a yarn guiding device which feeds a knitting needle from an offset position of an action line deviating from a knitting needle in a loom, characterized in that The yarn guiding device includes: a yarn guiding device body provided with a yarn inlet and a yarn outlet; a guide plate disposed at a lower side portion of the yarn guiding device body, by which the yarn is pushed into the inner side of the knitting needle Guided to the position directly in front of the knitting point, a projecting portion is formed on the lower side portion of the guide plate, and the projecting portion gradually protrudes in the back surface direction toward the yarn feeding direction (claim 1).

Preferably, the vertical portion of the side portion of the above-mentioned guide plate is located at a position where the latch of the knitting needle starts to close (claim 2).

Preferably, the bottom of the guide plate has an inclined portion that is inclined downward toward the front end (request item 3).

In order to prevent the main body of the yarn guiding device from coming into contact with the closed latch, a guide plate having a shape that does not interfere with the opening of the tab of the knitting needle is used in the rising portion of the knitting needle adjacent to the guide (claim item 4).

The guide plate and the yarn guiding device body may be integrally formed or may be detachably formed by a fixing member (requests 5 and 6).

The width of the projecting portion of the above-mentioned guide plate is made wider toward the upper end of the projecting portion as it approaches the yarn exit (claim 7).

According to the invention of the claims, even if the yarn constituting the yarn is easily spread at the time of offset knitting, the knitting needle can catch all the fibers without fail, thereby eliminating the defects caused by the production of the knitted fabric. In addition, the guide guides the yarn to the vicinity of the weaving point, so that it is not affected by the change of the weave structure, and the yarn feeding is stably performed.

According to the invention of claims 2 to 4, since the guide and the knitting point can be stably approached to a close distance, the accuracy of guiding the yarn to the knitting point can be improved.

According to the invention of claim 5, the yarn guiding device can be prevented from opening and closing the tongue.

The request item 7 can be detachably formed by the guide plate and the yarn guiding device body, and can be used as a conventional yarn guiding device for offset knitting at the time of separation.

According to the invention of claim 8, even if the yarn passes through the upper portion of the projecting portion, the yarn is less likely to be deviated from the projecting portion, and the longitudinal deviation can be easily and naturally restored.

The embodiments of the present invention are described below with reference to the drawings, but the present invention is not limited to the embodiments.

1 and 2 show an embodiment of a yarn guiding device for offset knitting. A guide plate 1 is integrally provided at a lower side portion of the yarn guiding device main body 3 including the yarn inlet 2 and the yarn outlet 4.

The vertical portion 12 of the side of the guide 1 is at a position where the latch of the needle begins to close.

In order to avoid the knitting needle or the latch thereof, the projecting portion 15 of the lower side portion of the guide 1 is formed into a shape in which the guiding portion is protruded higher. The height and width of the wall thickness of the projecting portion 15, the most protruding portion at the end of the yarn guiding device, that is, the width of the wall thickness of the front end portion 16 of the projecting portion is preferably increased to avoid the needle and its tongue. limit.

If the upper surface of the projecting portion 15 is straight, the yarn passage is moved upward to cause the yarn to pass through the upper end portion of the projecting portion, the yarn is removed from the projecting portion 15, and thereafter, even if the yarn passage is moved downward The yarn also does not automatically return to the projecting portion 15. Therefore, it is preferable to form the upper end curved surface 17 of the projecting portion 15 so that the yarn is not easily removed from the projecting portion, or it is easy to return even if it is removed.

The bottom portion of the side portion of the guide plate 1 is formed into a shape that is easy to be inserted into a tool for opening the latch tongue in the case of avoiding the knitting needle, and has an inclined portion 13 that is inclined downward toward the front end, and the guide plate 1 has a trapezoidal plate as a whole. The shape has an upper flat portion and a bottom inclined portion 13.

As shown in Fig. 3, the yarn entering the yarn inlet 2 passes through the inside of the yarn guiding device body 3, and then exits the yarn outlet 4 along the guide 1 to the weaving point 5. Since the guide 1 guides the yarn to the vicinity of the knitting point 5, the yarn is not affected by the change of the weave structure, and the yarn can be stably fed to the knitting point 5.

Further, as shown in A of Fig. 5, since the yarn pushed into the inside of the knitting needle 6 by the guide 1 is restrained until it reaches the knitting point 5, the knitting needle 6 is lowered to catch the yarn. In the descending portion 72 of the yarn 7, the fiber 9 constituting the yarn is not easily released toward the outside of the guide plate 1 as shown in Fig. 6 (X). Therefore, even if the fibers 9 constituting the yarn are loosened, the knitting needle 6 can catch all the fibers 9.

Further, as shown in (Y) of Fig. 6, the yarns of the conventional yarn guiding device shown in Fig. 4 are loosened by the fibers 9 constituting the yarn, so that the yarns are loosened outward. open. Thus, the knitting needle 6 cannot catch the fiber 9 which is loosened beyond the range in which the yarn can be caught.

The yarn guiding device body 3 of the present embodiment is formed such that the yarn passes through the rising portion 71 of the action line 7 which is adjacent to the knitting needle 6 and the guide sheet 1 so as not to come into contact with the closed latch 8 so that the yarn passes slightly from the knitting needle 6. go away. In the conventional offset knitting, when the knitting needle 6 is raised, if the yarn is close to the knitting needle 6, there is an action of opening the closed latch 8. However, in the process of opening the latch, the guide 1 and the latch 8 may come into contact to cause breakage of the component, etc., so that the yarn guiding device body 3 of the embodiment of the present invention is constructed as described above.

Another method for opening the tongue 8 unique to the offset feeding yarn may be a guide plate 1 having a shape that does not interfere with the opening of the latch 8 of the knitting needle 6 in the above-mentioned rising portion 71 where the knitting needle 6 is close to the guide 1.

Further, as another embodiment, as shown in Fig. 7, the guide member 1 and the yarn guiding device body 3 can be detachably fixed by using a fixing member 18 such as a screw for carrying out the use of a yarn which does not cause single fiber breakage. The adjustment makes it possible to bias the opening of the latch 8 of the knitting needle 6 when the guide 1 is removed.

1. . . Guide board

12. . . Vertical part

13. . . Inclined section

15. . . Extending part

16. . . Extending part of the front end

17. . . Upper surface

18. . . Fixed member

2. . . Yarn entrance

3. . . Yarn guide body

4. . . Yarn exit

5. . . Weaving point

6. . . Knitting needle

7. . . Knitting needle action line

71. . . Rising part

72. . . Falling part

8. . . Tongue

9. . . fiber

A. . . Yarn passage when using the yarn guiding device of the present invention

B. . . Yarn passage when using a conventional yarn guiding device

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of an embodiment of a yarn guiding device for offset knitting according to the present invention, wherein (a) is a perspective view from the front right side and (b) is a perspective view from the right rear side.

2 is an embodiment of the yarn guiding device for offset knitting of the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view.

Fig. 3 is a schematic view showing the offset knitting of the yarn guiding device for offset knitting of the present invention.

4 is a schematic front view of the offset knitting of a conventional yarn guiding device.

Fig. 5 is a schematic view showing the Z-Z cross section of the embodiment of Fig. 3 as seen from above, and the conventional yarn passage B of Fig. 4 is displayed in a stacked manner for comparison.

Figure 6 is an enlarged view of the vicinity of the weaving point of Figure 5, wherein Figure (X) shows the state of the yarn guiding device of the embodiment of the present invention; and Figure (Y) shows the state of the conventional yarn guiding device.

Fig. 7 is another embodiment of another yarn guiding device for offset knitting according to the present invention, wherein (a) is a front view, (b) is a left side view, and (c) is a rear view.

1. . . Guide board

2. . . Yarn entrance

3. . . Yarn guide body

5. . . Weaving point

7. . . Knitting needle action line

71. . . Rising part

72. . . Falling part

A. . . Yarn passage when using the yarn guiding device of the present invention

Claims (7)

A yarn guiding device for offset knitting, which is a yarn guiding device for feeding a yarn from an offset position of an inner field of an action line deviating from a knitting needle in a loom, characterized in that the yarn guiding device comprises: a yarn guiding device body (3) having a yarn inlet (2) and a yarn outlet (4); and a guide plate (1) disposed on a lower side portion of the yarn guiding device body (3) by the guide plate (1) a yarn pushed into the inner side of the knitting needle (6) is guided to a position directly in front of the knitting point (5), and a protruding portion (15) is formed at a lower side portion of the guiding plate (1), which is extended The portion (15) gradually becomes higher in the back direction as it goes toward the yarn feeding direction. A yarn guiding device for offset knitting according to claim 1, wherein the vertical portion (12) of the side portion of the guide plate (1) is located at a position where the latch of the knitting needle starts to close. A yarn guiding device for offset knitting according to claim 1, wherein the bottom portion of the guide plate (1) has an inclined portion (13) which is inclined downward toward the front end. A yarn guiding device for offset knitting according to claim 1, wherein a rising portion (71) adjacent to the knitting needle (6) and the guide plate (1) is provided with a tongue having a needle that does not interfere with the knitting needle (6) Open the shape of the guide (1). A yarn guiding device for offset knitting according to claim 1, wherein the guide plate (1) and the yarn guiding device body (3) are integrally formed. The yarn guiding device for offset knitting according to claim 1, wherein the guide plate (1) and the yarn guiding device body (3) are detachably formed by a fixing member (18). A yarn guiding device for offset knitting according to claim 1, wherein a width of the protruding portion (15) of the guide plate (1) is extended to the yarn outlet (4) as it approaches the yarn outlet (4) 15) The upper end surface (17) is formed wider.