JPH08310729A - Thread holding device and lining sheet for thread holding device - Google Patents

Abstract

PURPOSE: To properly hold a thread impregnated with wax by roughening the surfaces of opposite thread holding faces of a receiving plate and a pressing plate pinching the traveled thread, and forming a lining sheet stuck to the surface on the back face of a fiber sheet via an adhesive layer. CONSTITUTION: A traveled thread 9 is pinched by a pressing plate 24 elastically excited by a spring and a receiving plate 23 in this thread holding device, and at least one surface of the opposite thread holding faces of the receiving plate 23 and the pressing plate 24 is roughened, i.e., an oil-absorbing lining layer 90 is formed on at least one surface of the thread holding faces. The thread 9 is pinched while the oil and fat component causing the slip of the thread 9 is removed, the unnecessary slip of the thread 9 between both plates 23, 24 is prevented, and the thread is properly held. The lining sheet 93 stuck on at least one surface of the opposite thread holding faces of the receiving plate 23 and the pressing plate 24 is formed with a laminated body of a fiber sheet 91 and an adhesive layer 94. The lining structure is easily formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn holding device for holding a running yarn supplied to a knitting loom and the like, and a lining sheet used for the yarn holding device.

[0002]

2. Description of the Related Art Conventionally, thread holding devices have been found in various places in socks, sweaters and other knitting machines. This thread holding device is used, for example, in the vicinity of the sewing machine needle to hold the thread so as not to fall off the needle tip, or
In the yarn supply path, it is used to apply an appropriate tension to the yarn.

A known yarn holding device is provided with a receiving plate for holding a running yarn and a pressing plate, a spring for elastically pushing the pressing plate toward the receiving plate, and adjusting the elastic force of the spring. Adjustment means are provided. Therefore, the running yarn is clamped by the receiving plate and the pressing plate, and a predetermined holding pressure is applied by the adjusting means.

[0004]

By the way, the yarn used for knitting socks and the like is made of chemical fibers impregnated with wax (for example, trade name "Tevilon"). For example, a yarn in which a yarn made of polyvinyl chloride fiber is impregnated with wax is provided, and various waxes such as solid wax, liquid wax, and oily wax are used.

For this reason, the surface of the yarn is made slippery by the wax, and when passing between the receiving plate and the pressing plate in the yarn holding device as described above, a predetermined and expected holding pressure is applied. Is difficult.

That is, in the thread holding device used for the purpose of preventing the thread from falling off the needle tip of the sewing machine needle, the thread easily slides between the receiving plate and the pressing plate via the wax,
There is a problem that the thread is accidentally dropped from the needle tip.

Also, in the yarn holding device used for applying tension to the running yarn, the yarn does not receive resistance as set by the spring, and is interposed between the receiving plate and the pressing plate via the wax. There is a problem that it passes easily and the desired tension effect cannot be obtained.

[0008]

DISCLOSURE OF THE INVENTION The present invention provides a yarn holding device and a lining sheet used for the yarn holding device which have solved the above-mentioned problems.

In view of this, the yarn holding device of the present invention is configured as a first means. The yarn holding device is provided with a receiving plate for holding the running yarn and a pressing plate, and a spring for elastically pushing the pressing plate toward the receiving plate is provided. In the yarn holding device, the at least one of the yarn holding surfaces of the receiving plate and the pressing plate facing each other is formed into a rough surface.

Further, the yarn holding device of the present invention is configured as a second means, which is provided with a receiving plate and a pressing plate for holding the running yarn, and a spring for elastically pushing the pressing plate toward the receiving plate. In the yarn holding device, the lining layer having an oil absorbing property is formed on at least one surface of the yarn holding surfaces of the receiving plate and the pressing plate which face each other.

Further, the yarn holding device of the present invention is configured as a third means. The yarn holding device is provided with a receiving plate for holding the running yarn and a pressing plate, and a spring for elastically pushing the pressing plate toward the receiving plate is provided. In the yarn holding device, the fiber sheet is detachably attached to at least one of the opposing yarn holding surfaces of the receiving plate and the pressing plate.

On the other hand, the lining sheet for the yarn holding device according to the present invention is configured as the first means. The lining sheet for the yarn holding device is provided with the receiving plate and the pressing plate for holding the running yarn, and the pressing plate is elastically ejected toward the receiving plate. A thread holding device provided with a spring, which is a lining sheet adhered to at least one surface of the thread holding surfaces of the receiving plate and the pressing plate facing each other, wherein the lining sheet has an adhesive on the back surface of the fiber sheet. The point is that layers are provided.

The yarn holding device lining sheet of the present invention is configured as a second means in that the fiber sheet is formed of a non-woven fabric.

Further, the lining sheet for a yarn holding device of the present invention is configured as a third means, and is provided with a receiving plate and a pressing plate for holding the running yarn, and the pressing plate is elastically ejected toward the receiving plate. In a yarn holding device provided with a spring, a lining sheet attached to at least one surface of the yarn holding surfaces of the receiving plate and the pressing plate facing each other, the lining sheet being a synthetic resin sheet on the back surface of the nonwoven fabric. The point is that they are laminated.

[0015]

Embodiments of the present invention will be described in detail below with reference to the drawings.

(First Embodiment of Thread Holding Device) FIGS. 1 and 2
Shows a first embodiment of the yarn holding device. As shown in FIG. 1, a housing 4 is formed by a back plate 2 and a front plate 3 which are detachably connected by a bolt 1, and an attachment table 4a is further detachably fixed to the front plate 3. Front plate 3
The upper and lower brackets 5 and 6 are each provided with an annular upper guide 7 and a lower guide 8 to form a passage for the thread 9. That is, the yarn 9 is fed from the bobbin, introduced into the lower guide 8 and led out from the upper guide 7, and sent to the knitting loom.

An annular intermediate guide 11 is provided on an intermediate bracket 10 provided on the attachment table 4a, and a passage for the yarn 9 is formed between the upper and lower guides 7 and 8. In the illustrated embodiment, the intermediate bracket 10 constitutes a pair of upper and lower intermediate brackets 10a, 10b, and the intermediate guide 11 comprises annular intermediate guides 11a, 11b provided on the upper and lower intermediate brackets 10a, 10b, respectively. ing.

A drive mechanism 12 is provided between the upper guide 7 and the intermediate guide 11, and a thread holding mechanism 13 is provided between the intermediate guide 11 and the lower guide 8. The drive mechanism 12 has a drive shaft 15 rotatably supported by a bush 14 inserted into the front plate 3 via a bearing,
An outer wheel 16 and an inner wheel 1 are provided at both ends of the drive shaft 15.
7 is stuck. The outer wheel 16 is arranged between the upper guide 7 and the intermediate guide 11, and the axial center of the outer wheel 16 is arranged on the yarn passage between the guides 7 and 11. On the other hand, the inner wheel 17 is arranged in the housing 4. The inner and outer wheels 17, 16 have V grooves formed on their peripheral surfaces, and as shown in FIG. 2, projections 18 are provided on the groove bottom at equal intervals in the circumferential direction. Ring 1 on the bush 14
9 is rotatably externally inserted and fixed by a set bolt 20. As shown in FIG. 2, the ring 1
An arm 21 is extended in the radial direction at 9, and an annular adjustment guide 22 is provided at the bent end of the arm 21.

The thread holding mechanism 13 constitutes a receiving plate 23 and a pressing plate 24 for holding the thread 9 between the intermediate guide 11 and the lower guide 8.

A driven shaft 25 is provided to make the receiving plate 23 rotatable. That is, the front plate 3 and the attachment table 4a
And a cover plate 27 which is detachably fixed to the attachment table 4a via bolts 26, and a bush 28 is inserted and attached to the bush 28 via a bearing.
Is rotatably supported, and the driven wheel 29 and the receiving plate 23 are fixed to both ends of the driven shaft 25. The driven wheel 29 is disposed in the housing 4, and is driven by the drive mechanism 1.
An endless transmission means 30 is bridged between the inner wheel 17 and the driven wheel 29 in FIG.

The receiving plate 23 has an axial center centered on the intermediate guide 11.
It is arranged on the thread passage between the lower guide 8 and the lower guide 8, and is fitted to the angular shaft portion at the shaft end of the driven shaft 25.

On the other hand, the push plate 24 is externally mounted on the fixed shaft 31. The push plate 24 is fixed so as not to be rotatable in the circumferential direction of the fixed shaft 31 via the spline 31a.
The push plate 24 is slidable in the axial direction of the fixed shaft 31.
Are urged toward the receiving plate 23 by the spring 32. That is, the fixed shaft 31 is disposed coaxially with the driven shaft 25, and the one end screw shaft portion 33 of the fixed shaft 31 is detachably fixed to the upright portion 34 of the lower bracket 6 by a pair of lock nuts 35, 35. The other end of the fixed shaft 31 is butted against the shaft end of the driven shaft 25. This butt 36
Is composed of a conical sharp end formed at the shaft end of the driven shaft 25 and a conical recess formed at the shaft end of the fixed shaft 31.
The driven shaft 25 is rotatably connected to the fixed shaft 31 by inserting the sharp end into the recess.

A spring bearing 32a is screwed into the screw shaft portion 33 of the fixed shaft 31 such that the spring bearing 32a can be moved back and forth.
A compression spring 32 is interposed between the four. Therefore, the biasing force of the spring 32 can be adjusted by adjusting the spring receiver 32a to move back and forth on the screw shaft portion 33.

A thread breakage detection lever 37 is provided adjacent to the intermediate guide 11. This thread breakage detection lever 3
The reference numeral 7 indicates a solid line in FIG. 1 when the yarn 7 is rotatably pivoted about the horizontal axis with respect to the attachment table 4a and the yarn normally runs on the yarn passage constituted by the plurality of guides. When the yarn breaks in the standing posture as described above, the yarn is rotated in the prone direction by its own weight as shown by the chain line in FIG. For this reason, the yarn breakage detection lever 37 is provided with a detection part 37a in contact with the yarn 9 at the tip and an operation part 37b at the tail end, and the operation part 37b is operated when the lever is turned down due to the yarn breakage. Switch contact 3 that can be contacted and short-circuited
8 are arranged adjacent to each other. The contact 38 is connected to the terminal bolt 39.
And the terminal portion 39a of the terminal bolt 39 is connected to the back plate 2
The yarn running drive source is stopped through a cable (not shown) extending from the terminal portion 39a.

Further, the back plate 2 is provided with a mounting means 40. This installation means 40 comprises a portal metal fitting 41 and a clamper 42 composed of a wing bolt for clamping the portal metal fitting 41 on a frame of a weaving machine or the like. In the case of the illustrated embodiment, the portal-shaped metal fitting 41 is attached by screwing a bolt 44 from the inside of the back plate 2 into the screw hole 43 on the side surface, and also has a similar screw hole 45 on the top surface. Therefore, as shown in the figure, the screw hole 43 faces the back plate 2 so that the opening of the gate-shaped groove faces downward,
By making the screw holes 45 face the back plate 2, it is possible to adopt a mounting mode in which the opening of the gate-shaped groove is oriented horizontally.

The yarn holding device according to the first embodiment is used by being attached to a frame of a weaving machine or the like or another appropriate place through the installation means 40.

In the first use example shown in FIG. 2A, the thread 9 is introduced from the lower guide 8, passes between the receiving plate 23 and the pressing plate 24, passes through the intermediate guides 11b and 11a, and then the outer wheel. After being wound around 16, it is led out from the upper guide 7.

Therefore, the spring 3 is held by the spring receiver 32a.
By adjusting the urging force of 2, the holding force between the receiving plate 23 and the pressing plate 24 in the yarn holding mechanism 13 is set, and a tension of a predetermined pressure can be applied to the traveling yarn 9.

When the outer wheel 16 is rotationally driven by the running of the yarn 9, the drive shaft 15, the inner wheel 17, and the transmission means 3
The receiving plate 23 is rotationally driven through the transmission path of 0, the driven wheel 29, and the driven shaft 25. On the other hand, the push plate 24 is
As described above, since it is non-rotatably fixed to the fixed shaft 31 via the spline 31a, it does not rotate following the receiving plate 23 and is stopped.

With respect to this point, the push plate 24 is rotatably fitted onto the fixed shaft 31 without providing the above-mentioned spline 31a, and in this state, the support plate 2 is supported by the spring 32.
When it is elastically contacted with 3, it does not rotate following the receiving plate 23 and stops under the tension of a weak force, but if the spring receiver 32a is adjusted to increase the elastic urging force of the spring 32, The push plate 24 may come into strong contact with the receiving plate 23 and rotate together. On the other hand, according to the first embodiment, since the push plate 24 is not rotatable by the spline 31a as described above, the push plate 24 is accompanied by the spring 32 even if the elastic force of the spring 32 is increased. It does not rotate.

Therefore, the lint or wax adhering to the contact surface between the receiving plate 23 and the pressing plate 24 comes into contact with the non-rotatable pressing plate 24 while the receiving plate 23 is rotating, and slides on the contact surface. Since it is rubbed, it is always scraped off and does not adhere and accumulate between the contact surfaces.

In the second use example shown in FIG. 2 (B), the thread 9 passes through the intermediate guides 11b and 11a and then the adjustment guide 22.
After being inserted into the upper guide 7, the outer wheel 16 is wound around and is guided out from the upper guide 7. Others are the same as those of the first usage example shown in FIG.

The position of the adjusting guide 22 is set by loosening the set bolt 20 and rotating the ring 19 as shown in FIG.
(B) As shown by the chain line, the position of the bush 14 can be changed in the circumferential direction, and the bush 14 is set at the most suitable position.

Therefore, by circumventing the yarn passage toward the outer wheel 16 by the adjusting guide 22, it is possible to lengthen the winding portion of the yarn 9 around the outer wheel 16. Therefore, the traveling force of the yarn 9 can be reliably transmitted to the outer wheel 16, and the yarn 9 can be prevented from slipping on the outer wheel 16.

(Second Embodiment of Thread Holding Device) FIGS. 3 and 4
Shows a second embodiment of the yarn holding device. Except for the configuration of the thread holding mechanism 13, it is the same as the first embodiment,
The same components are designated by the same reference numerals as those in FIGS. 1 and 2, and a duplicate description will be omitted.

In the second embodiment, the thread holding mechanism 13
Constitutes a receiving plate 23 and a pressing plate 24 for sandwiching the thread 9 between the intermediate guide 11 and the lower guide 8.
3 is fixed non-rotatably, the push plate 24 is rotatably supported, and the push plate 24 is rotationally driven by a drive source obtained by the drive mechanism 12.

In order to rotate the push plate 24, the driven shaft 5
1 is provided. That is, the front plate 3, the attachment table 4a,
A bush 52 is inserted over the cover plate 27 and the driven shaft 51 is rotatably supported by the bush 52 via a bearing. One end of the driven shaft 51 is driven wheel 5.
3 is fixed, and the push plate 24 is attached to the other end through a rotary shaft 54 coaxially connected. The driven wheel 53 is arranged in the housing 4, and the endless transmission means 30 is provided between the inner wheel 17 of the drive mechanism 12 and the driven wheel 53. This point is different from the first embodiment. It is the same.

The receiving plate 23 is arranged on the yarn passage between the intermediate guide 11 and the lower guide 8 with the center of the shaft being fixed to the bush 52. For example, if the receiving plate 23 is a bush 52
It can be attached externally to the extension end of and fixed with a set bolt or the like.

The rotating shaft 54 is fitted in the angular shaft portion at the shaft end of the driven shaft 51. The push plate 24 is externally attached to the rotary shaft 54. The push plate 24 is a spline 5
4a is fixed so as not to rotate in the circumferential direction of the rotary shaft 54, but slidable in the axial direction of the rotary shaft 54,
The push plate 24 is elastically urged toward the receiving plate 23 by the spring 55. At this time, in order to make the end of the spring 55 and the push plate 24 relatively rotatable, a rotary slide ring 56 is provided at the end of the spring 55. Therefore, the push plate 24 rotates while slipping while being in contact with the surface of the rotary sliding ring 56.

The spring 55 is supported by a fixed shaft 57. The fixed shaft 57 is disposed coaxially with the rotating shaft 54. One end of the fixed shaft 57 has a screw shaft portion 58 of the lower bracket 6. The upright portion 34 has a pair of lock nuts 59, 59.
Are fixed in a detachable manner by means of, and the other end of the fixed shaft 57 is butted against the shaft end of the rotary shaft 54. This butt section 6
0 is a conical sharp end formed on the shaft end of the rotating shaft 54,
The fixed shaft 57 is composed of a conical recess formed at the shaft end of the fixed shaft 57.
A rotating shaft 54 is rotatably connected to the shaft 7.

A spring receiver 55a is screwed onto the screw shaft portion 58 of the fixed shaft 57 so as to be able to move back and forth.
A compression spring 55 is interposed between the four. Therefore, the elastic biasing force of the spring 55 can be adjusted by adjusting the spring receiver 55a to move back and forth on the screw shaft portion 58.

Also in this second embodiment, as shown in FIG.
Although two usage examples similar to those shown in (B) are possible, in either case, by adjusting the urging force of the spring 55 by the spring receiver 55a, the support plate 23 in the thread holding mechanism 13 and The clamping force of the push plate 24 is set,
A tension of a predetermined pressure can be applied to the traveling yarn 9.

When the drive mechanism 12 is operated by using the traveling of the yarn 9 as a power source, the driven shaft 51 is rotated together with the driven wheel 53, the rotary shaft 54 is rotationally driven, and the pressing plate 24 is pressed against the receiving plate 23. Rotate. At this time, since the receiving plate 23 is fixed so as not to rotate, it does not rotate following the pressing plate 24 and is stopped.

Therefore, the lint or wax adhering to the contact surface between the receiving plate 23 and the pressing plate 24 comes into contact with the non-rotatable receiving plate 23 while the pressing plate 24 is rotating, and slides on the contact surface. Since it is rubbed, it is always scraped off and does not adhere and accumulate between the contact surfaces.

(Third Embodiment of Thread Holding Device) FIGS. 5 to 7 show a third embodiment of the yarn holding device. Other than the configurations of the drive mechanism 12 and the thread holding mechanism 13, the configuration is the same as that of the first embodiment described above, so the same components are assigned the same reference numerals as in FIGS. 1 and 2, and duplicate description is omitted. .

In the third embodiment, the thread holding mechanism 13
Constitutes a receiving plate 23 and a pressing plate 24 for sandwiching the thread 9 between the intermediate guide 11 and the lower guide 8.
3 and the push plate 24 are rotatably supported, and a drive source for rotating the receiving plate 23 and the push plate 24 in opposite directions is provided.

Therefore, a first drive path 71 for rotating the receiving plate 23 and a second drive path 72 for rotating the push plate 24 are formed between the drive mechanism 12 and the tension mechanism 13. ing.

The drive mechanism 12 has a drive shaft 15 rotatably supported by a bush 14 inserted into the front plate 3 via a bearing, and an outer wheel 16 is fixed to the outer end of the drive shaft 15. The outer wheel 16 is arranged between the upper guide 7 and the intermediate guide 11, and the axial center of the outer wheel 16 is arranged on the yarn passage between the guides 7 and 11. This point is the same as the first embodiment. However, the above first
Unlike the embodiment, in the third embodiment, the first inner wheel 7 is provided at the inner end of the drive shaft 15 in the housing 4.
3 and the second inner wheel 74 are fixed, and the former constitutes a drive source for the receiving plate 23 and the latter constitutes a drive source for the push plate 24.

The thread holding mechanism 13 has a cylindrical first driven shaft 75 for rotating the receiving plate 23 and a second driven shaft 76 for rotating the pressing plate 24.

The first driven shaft 75 is inserted into a bush 77 installed between the attachment base 4a and the cover plate 27, and is rotatably supported by bearings.
The receiving plate 23 is fixedly attached to the outer end of the first driven wheel 78, and the first driven wheel 78 is fixedly attached to the inner end of the housing 4.

The second driven shaft 76 is inserted into the first driven shaft 75 and is rotatably supported by bearings. A second driven wheel 79 is provided at an inner end located in the housing 4. It is stuck.

A push plate 24 is attached to the outer end of the second driven shaft 76 via a rotary shaft 80 that is coaxially connected. The rotating shaft 80 is fitted in the angular shaft portion at the shaft end of the second driven shaft 76. The push plate 24 is externally attached to the rotary shaft 80 and fixed so as not to be rotatable in the circumferential direction of the rotary shaft 80 via a spline 80a. Is slidable, and the pressing plate 24 is elastically urged toward the receiving plate 23 by the spring 81. At this time, a rotary sliding ring 82 is provided at the end of the spring 81 in order to make the end of the spring 81 and the push plate 24 relatively rotatable. Therefore, the push plate 24 rotates while slipping while being in contact with the surface of the rotary sliding ring 56.

The spring 81 is supported by a fixed shaft 57, and the spring biasing force of the spring 81 can be adjusted by a spring receiver 55a screwed in a screw shaft portion 58 of the fixed shaft 57 so as to be able to move forward and backward. Since the structure of the fixed shaft 57 is the same as that of the second embodiment, the same reference numerals as those in FIGS. 3 and 4 are given, and the duplicated description is omitted here.

In the first drive path 71, between the first inner wheel 73 and the first driven wheel 78 and between the second inner wheel 72 and the second driven wheel 79, an endless first transmission is provided. Means 83 and Second Transmission Means 84
Are laid over, so that the receiving plate 23 and the pushing plate 2 are respectively
4 is rotationally driven.

In the third embodiment, in order to rotate the receiving plate 23 and the pressing plate 24 in mutually opposite directions, the rotation direction is changed to either the first drive path 71 or the second drive path 72. Conversion means are provided for doing so.

In the illustrated example, as shown in FIG. 7A, in the first drive path 71, the first transmission means 83 applies the rotational force of the first inner wheel 73 to the first driven wheel 78. It transmits to the same rotation direction without changing the rotation direction.
On the other hand, the second drive path 72 is, as shown in FIG.
The second transmission means 84 is bridged in a "8" shape between the second inner wheel 74 and the second driven wheel 79, whereby the rotational force of the first inner wheel 73 is first The rotation direction conversion means 85 is configured so that the rotation direction of the driven wheel 78 is converted to the opposite direction and can be transmitted.
Therefore, when the receiving plate 23 is normally rotated, the push plate 24 is reversely rotated.

By the way, the first inner wheel 73 and the first driven wheel 78 forming the first drive path 71, or the second inner wheel 74 forming the second drive path 72.
The second driven wheel 79 and the second driven wheel 79 may have the same diameter, but may have a speed reducing means by making them have different diameters. In the case of the illustrated example, only the second inner wheel 74 has a smaller diameter than the other wheels, whereby the speed reducing means 86 is formed in the second drive path 72. Therefore, in this case, the rotation speed of the push plate 24 is lower than the rotation speed of the receiving plate 23. The speed reducing means 86 can be freely formed on one or more of these wheel groups to scrape off thread waste or wax adhering to the receiving plate 23 and the pressing plate 24. It can be designed to have the optimum conditions.

Also in this third embodiment, as shown in FIG.
The same two usage examples as those shown in (B) are possible, and by adjusting the urging force of the spring 81 by the spring receiver 55a, the yarn 9 that runs while being sandwiched between the receiving plate 23 and the pressing plate 24 can be used. A tension of a predetermined pressure is applied to it.

When the drive mechanism 12 is actuated by using the traveling of the yarn 9 as a power source, the push plate 24 and the receiving plate 23 are pressed against each other via the first drive path 71 and the second drive path 72. Rotate in the opposite direction. Therefore, the lint or wax adhering to the contact surface between the receiving plate 23 and the pressing plate 24 comes into contact with the receiving plate 23 and the pressing plate 24 while rotating in opposite directions, and the contact surfaces are rubbed against each other. Therefore, there is no adhesion and deposition between the contact surfaces.

(Fourth Embodiment of Thread Holding Device) The fourth embodiment of the yarn holding device is basically the same as the above-mentioned third embodiment, and FIG. 5 can be referred to as it is. However, the fourth embodiment does not have the rotation direction changing means 85 as in the third embodiment. That is, FIG. 8 (A)
As shown in (B), in the first drive path 71, the first transmission means 83 does not convert the rotational force of the first inner wheel 73 with respect to the first driven wheel 78 in the same rotational direction. To communicate below. Similarly, the second drive path 72
The second transmission means 84 transmits the rotational force of the second inner wheel 74 to the second driven wheel 79 in the same rotational direction without changing the rotational direction. Therefore, the receiving plate 2
3 and the push plate 24 are rotated in the same direction.

By the way, as described in the third embodiment, the speed reducing means 86 as described above is used in the fourth embodiment.
Is provided. Therefore, the receiving plate 23 and the pressing plate 24 are
They are rotated in the same direction, but the rotation speeds are different from each other. Therefore, also in the fourth embodiment, when the drive mechanism 12 is operated by using the traveling of the yarn 9 as a power source, the pressing plate 24 is pressed against the receiving plate 23 via the first driving path 71 and the second driving path 72. Then, the two plates are rotated at mutually different rotational speeds. Therefore, the thread waste or the wax adhering to the contact surface between the receiving plate 23 and the pressing plate 24 is prevented.
Contact with each other while slipping on the basis of the difference in rotational speed and rub against the contact surface, so that the contact surface is always scraped off and does not adhere and accumulate between the contact surfaces.

Needless to say, the yarn holding device is not limited to the above embodiment, and various design changes can be made freely. For example, in the above embodiment, the driving mechanism 12 using the traveling force of the yarn 9 as a power source is provided, and the receiving plate 23 and / or the pushing plate 24 is rotationally driven by the driving mechanism 12, but an electric motor or the like is separately provided. Alternatively, one or a plurality of independent drive sources may be provided, and thereby the receiving plate 23 and / or the pressing plate 24 may be rotationally driven. Further, in the illustrated example, while one of the receiving plate 23 and the pressing plate 24 is non-rotatably fixed,
Although the structure in which the other plate is rotated is shown, it is not always necessary to fix one plate in a non-rotatable manner, and either or both of the receiving plate 23 and the pressing plate 24 are rotatably supported, and It suffices to provide a drive mechanism for rotating the.

(First Embodiment of Anti-Slip Means of the Present Invention) The present invention relates to the yarn holding device as in the above-mentioned first to fourth embodiments, in which the receiving plate 23 and the pressing plate 24 are opposed to each other. At least one surface of the holding surface is provided with a non-slip means for preventing the thread 9 from slipping through the wax.

Although not shown in the drawings, this anti-slip means can be implemented by forming a rough surface on one or both surfaces of the receiving plate 23 and the pressing plate 24 in the first to fourth embodiments. For example, if the surface of the receiving plate 23 and / or the pressing plate 24 is formed in a satin-like shape, it is possible to impart an appropriate resistance to the yarn 9, so that both the plates 23, 24 can be provided.
The yarn 9 does not slip excessively between the two, and the tension corresponding to the pressure of the springs 32, 55, 81 can be applied.

At this time, the wax of the thread 9 easily adheres to the matte surface of the receiving plate 23 and / or the pressing plate 24, which are roughened surfaces, as in the above-described first to fourth embodiments. In the yarn holding device, since at least one of the receiving plate 23 and the pressing plate 24 is rotated, the attached wax can be scraped off properly.

(Second Embodiment of Anti-Slip Means of the Present Invention) The anti-slip means of the present invention is composed of a lining layer 90 as shown in FIG. 9 in another embodiment. The lining layer 90 includes an oil-absorptive sheet 91 and an attaching means 92 for attaching the sheet 91 to the surface of the receiving plate 23 and / or the pressing plate 24. Although the lining layer 90 is provided on the push plate 24 in FIG.
It may be provided on either or both of the push plate 24 and the push plate 24.

The oil-absorbent sheet 91 constituting the lining layer 90 is made of a fiber sheet such as a non-woven fabric or a woven fabric, and preferably absorbs oils and fats such as wax adhering to the surface of the running yarn 9. Also, in the case of a non-woven fabric, a rough surface is formed by raising fibers on the surface. Therefore, the thread 9 does not easily slip between the plates 23 and 24, and the spring 32,
A tension corresponding to the pressures of 55 and 81 can be applied. The attaching means 92 can be made of a pressure sensitive adhesive, but a fitting means or other locking means or fixing means may be adopted.

By the way, when the oil-absorbent sheet 91 of the lining layer 90 is made of a fiber sheet in this way, the surface of the oil-absorbent sheet 91 is covered by the yarn 9 which linearly runs along the diameter direction of the receiving plate 23 and the pressing plate 24. Worn. In this regard, when the receiving plate 23 and / or the pressing plate 24 provided with the lining layer 90 does not rotate, the oil absorbing sheet 9
In contrast to the case where a linear wear groove is formed in No. 1, if the structure in which the receiving plate 23 and / or the pressing plate 24 is rotated as in the embodiment of FIGS. The wear can be evenly distributed over the entire surface of the rotating lining layer 90 so that no wear grooves are formed.

(First Embodiment of Lining Sheet of the Present Invention) The lining layer 90 can be easily constructed by a lining sheet 93 as shown in FIG.

10 (A) and 10 (B) show a first embodiment of the lining sheet 93, in which a fiber sheet 91 such as a non-woven fabric or a woven fabric is provided with a donut along the surface of the receiving plate 23 and / or the pressing plate 24. The fibrous sheet 91 is provided with an adhesive layer 94 on the back surface thereof, and the adhesive layer 94 is covered with a release sheet 95.

Such a lining sheet 93 can be easily obtained by punching an annular sheet formed by laminating the fibrous sheet 91, the adhesive layer 94 and the release sheet 95. A cut 96 that reaches the outer peripheral portion and separates the annular sheet is formed at the same time.

In order to satisfy both the surface roughness that imparts resistance to the yarn 9 and the oil absorbency of wax or the like, it is preferable that the fiber sheet 91 be made of a non-woven fabric. In this case, polypropylene or polyamide is used. Nonwoven fabrics made of fibers such as polyester, polyester and cellulose can be preferably used. At this time, the non-woven fabric is preferably made of a new oily material, and in terms of the new oily property, polypropylene fibers are particularly excellent in capturing fine oil droplets.

Therefore, if the lining sheet 93 is adhered to the surface of the receiving plate 23 and / or the pressing plate 24 by the exposed adhesive layer 94 after the release sheet 95 is peeled off, the lining layer as shown in FIG. 90 can be easily formed. At this time, since the annular lining sheet 93 has the cut 96, it is not necessary to disassemble the receiving plate 23 and / or the pressing plate 24 from the shafts 31, 54, 80 to remove them.
It can be directly attached to the surface of the receiving plate 23 and / or the pressing plate 24. Further, when the lining layer 90 is worn, the lining sheet 93 can be removed by peeling off the adhesive layer 94, and a new lining sheet 93 can be attached again.

(Second Embodiment of Lining Sheet of the Present Invention) FIGS. 10C and 10D show a second embodiment of the lining sheet 93, which is a fiber sheet 9 made of a nonwoven fabric.
A synthetic resin sheet 97 is laminated on the back surface of No. 1, and an adhesive layer 94 is laminated on the synthetic resin sheet 97 and the adhesive layer 94 is covered with a release sheet 95.

The non-woven fabric forming the fiber sheet 91 is made of the same fibers as described above, but the synthetic resin sheet 9 is used.
7 is laminated via an adhesive or is heat-welded for lamination. For example, if the synthetic resin sheet 97 is made of a thermoplastic resin such as polypropylene, it can be welded to the non-woven fabric by hot pressing. At this time, the synthetic resin sheet 97 having a thickness of about 200 μ is thermally welded. Then, the nonwoven fabric is impregnated with the molten resin while the thickness of the resin sheet is reduced, and a strong lamination is enabled, the fiber sheet 91 is reinforced, and the plate-shaped lining sheet 93 is provided.

Then, a donut-shaped lining sheet 93 is obtained by punching and forming such a laminated sheet in an annular shape. The lining sheet 93 is a cut line that separates the annular sheet from the inner peripheral portion to the outer peripheral portion. 96 is formed.

Also in this embodiment, after the release sheet 95 is peeled off, the lining sheet 93 is adhered to the surface of the receiving plate 23 and / or the pressing plate 24 by the exposed adhesive layer 94, as shown in FIG. Such a lining layer 90 can be easily formed.

By the way, according to this embodiment, since the lining sheet 93 has the fiber sheet 91 reinforced by the synthetic resin sheet 97, the lining sheet 93 is strong and adheres to the receiving plate 23.
And / or there is no risk of flipping up from the surface of the push plate 24.

Therefore, the object of the present invention can be achieved without providing the adhesive layer 94 (and the release sheet 95). That is, as the structure in which the synthetic resin sheet 97 is simply laminated on the fiber sheet 91, the receiving plate 23 and the pressing plate 24 are provided.
It can be used by interposing between the two.
In this case, the yarn 9 runs between the fiber sheet 91 of the lining sheet 93 and the surface of the receiving plate 23 or the pressing plate 24 facing the fiber sheet 91. Therefore, the lining sheet 93 is only sandwiched between the receiving plate 23 and the pressing plate 24 by the elastic force of the springs 32, 55, 81, but is retained in a plate shape reinforced by the synthetic resin sheet 97. With the
The oil or fat such as wax of the yarn 9 is preferably absorbed to achieve the intended purpose.

In each of the above embodiments, the yarn holding device for applying tension to the yarn in the yarn supply path is shown, but in addition to the device for such tension, the vicinity of the sewing machine needle is also shown. It is needless to say that the present invention can also be applied to a yarn holding device for holding the yarn so that the yarn does not drop from the needle tip.

[0081]

According to the present invention as set forth in claim 1, in the yarn holding device for holding the running yarn by the pushing plate 24 and the receiving plate 23 elastically repelled by the spring, the receiving plate 23 and the pushing plate are provided. Since at least one surface of the 24 yarn holding surfaces facing each other is formed into a rough surface, even when the yarn 9 impregnated with an oil or fat such as wax is used, an appropriate resistance is exerted on the yarn 9. Can be applied so that both plates 23,
The yarn 9 does not slide unnecessarily between 24, and it becomes possible to hold the yarn 9 corresponding to the elastic force of the spring.

According to the second aspect of the present invention, the backing plate 2 is provided.
Since the oil-absorbing lining layer 90 is layered on at least one surface of the thread holding surfaces of the thread 3 and the pressing plate 24 facing each other, the thread 9 is preferably absorbed with oil such as wax. Since the yarn 9 can be sandwiched while removing the oil and fat component on the surface which is the cause of the yarn 9 slipping, unnecessary slipping of the yarn 9 between the two plates 23 and 24 can be prevented and the yarn 9 can be held appropriately.

According to the present invention of claim 3, the backing plate 2
Since the fiber sheet 91 is detachably attached to at least one surface of the thread holding surfaces of the sheet 3 and the pressing plate 24 facing each other, the fiber sheet 91 functions to absorb oil and is impregnated into the thread 9. It is possible to absorb oils and fats such as wax and the like, prevent unnecessary slippage of the yarn 9 between the plates 23 and 24, and preferably hold the yarn 9. At this time, the fiber sheet 9
If a rough surface is formed on the surface of No. 1 by a weaving structure or raising, it is possible to impart an appropriate resistance to the yarn 9 at the same time and prevent the yarn 9 from unnecessarily slipping.

According to the present invention described in claim 4, the receiving plate 2
3 and the lining sheet 93 attached to at least one surface of the thread holding surfaces of the pressing plate 24 facing each other, the fiber sheet 9
1 and the adhesive layer 94 are laminated, the lining structure can be easily implemented by simply attaching the lining sheet 93 to the thread holding surface of a conventionally known thread holding device. There are advantages.

According to the present invention as set forth in claim 5, since the fiber sheet 91 of the lining sheet 93 is made of a non-woven fabric, there is an effect that both oil absorption and surface roughness can be satisfied at the same time.

According to the present invention of claim 6, the receiving plate 2
3 and the lining sheet 93 attached to at least one surface of the thread holding surfaces of the pressing plate 24 facing each other are formed by laminating the synthetic resin sheet 97 on the back surface of the non-woven fabric 91. It is possible to provide the lining sheet 93 having a strong stiffness by satisfying the rough surface property and reinforcing the non-woven fabric 91 which is weak and easily bends by itself with the synthetic resin sheet 97.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a first embodiment of a yarn holding device to which the present invention is applied.

FIG. 2 shows an example of use of the yarn holding device, (A) shows the first
The front view which shows a usage example, (B) is a front view which shows a 2nd usage example.

FIG. 3 is a vertical sectional side view showing a second embodiment of the yarn holding device to which the present invention is applied.

4 is an enlarged cross-sectional view of a yarn holding mechanism in the yarn holding device shown in FIG.

FIG. 5 is a vertical sectional side view showing a third embodiment of the yarn holding device to which the present invention is applied.

6 is an enlarged cross-sectional view of a thread holding mechanism in the thread holding device shown in FIG.

FIG. 7 shows a drive path in the yarn holding device shown in FIGS. 5 and 6, and (A) is a vertical cross-sectional front view showing the first drive path;
(B) is a vertical sectional front view showing a second drive path.

FIG. 8 shows a drive path for constructing another embodiment of the yarn holding device to which the present invention is applied, (A) is a vertical sectional front view showing a first drive path, and (B) is a second drive path. FIG.

FIG. 9 is an enlarged vertical cross-sectional view showing an embodiment of the anti-slip means in the yarn holding device of the present invention.

FIG. 10 shows an embodiment of a lining sheet of the present invention, (A) is a plan view showing a first embodiment of the lining sheet, (B) is an enlarged sectional view taken along line XX of (A), (C) is a plan view showing a second embodiment of the lining sheet, and (D) is an enlarged sectional view taken along line YY of (C).

[Explanation of symbols]

 9 thread 12 drive mechanism 13 thread holding mechanism 23 receiving plate 24 push plate 31 fixed shaft 32 spring 54 rotating shaft 55 spring 80 rotating shaft 81 spring 90 lining layer 91 oil absorbing sheet (fiber sheet) 92 sticking means 93 lining sheet 94 Adhesive layer 95 Release sheet 96 Cut 97 Synthetic resin sheet

Claims (6)

[Claims] 1. A yarn holding device comprising a receiving plate for holding a running yarn and a pressing plate, and a spring for elastically pushing the pressing plate toward the receiving plate, wherein the receiving plate and the pressing plate face each other. A yarn holding device, characterized in that at least one surface of the holding surface is formed into a rough surface. 2. A yarn holding device comprising a receiving plate for holding a running yarn and a pressing plate, and a spring for elastically pushing the pressing plate toward the receiving plate, wherein the receiving plate and the pressing plate face each other. A yarn holding device comprising an oil absorbing lining layer formed on at least one surface of the holding surface. 3. A yarn holding device comprising a receiving plate for holding a running yarn and a pressing plate, and a spring for elastically pushing the pressing plate toward the receiving plate, wherein the receiving plate and the pressing plate face each other. A yarn holding device, wherein a fiber sheet is detachably attached to at least one surface of the holding surface. 4. A yarn holding device comprising a receiving plate for holding a running yarn and a pressing plate, and a spring for elastically pushing the pressing plate toward the receiving plate, wherein the receiving plate and the pressing plate face each other. A lining sheet to be attached to at least one surface of a holding surface, wherein the lining sheet comprises an adhesive layer provided on the back surface of a fiber sheet. 5. The lining sheet for a yarn holding device according to claim 4, wherein the fiber sheet is made of a non-woven fabric. 6. A yarn holding device comprising a receiving plate for holding a running yarn and a pressing plate, and a spring for elastically pushing the pressing plate toward the receiving plate, wherein the receiving plate and the pressing plate face each other. A lining sheet attached to at least one surface of a holding surface, wherein the lining sheet is formed by laminating a synthetic resin sheet on the back surface of a nonwoven fabric.