JP2002143591A - Lubricant oil applying device for thread - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lubricant oil applying device for a thread, which can uniformly apply a lubricant oil on the outer periphery of the thread with the lubricant oil of a proper amount. SOLUTION: This lubricant oil applying device for a thread is constituted by providing the thread 10, a lubricant oil applying section 18 and an atomizing means 16. In this case, the thread 10 is arranged along a thread path extending from a thread bobbin to a stitch forming section. The lubricant oil applying section 18 has an internal space 30 through which the thread can pass. The atomizing mean 16 feeds a particle-form lubricant oil to the lubricant oil applying section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for applying lubricating oil to yarn, and more particularly, to a device for atomizing lubricating oil using a piezoelectric element, and a method for applying lubricating oil to fine particles by means of a flow rate generator such as a fan. The present invention relates to a device for applying a lubricating oil to a yarn.

[0002]

2. Description of the Related Art Conventionally, a lubricating oil applying device for yarn has been
The sewing machine used an Eslen machine.

[0003] The purpose of the ESLEN device is to apply silicone oil (lubricating oil) to the needle thread to reduce the sliding resistance of the thread and to prevent thread breakage and heating of the needle.

[0004] An Eslen device arranged in the upper thread path includes an oil tank for storing silicon oil, an oil core for sucking silicon oil from the oil tank, a felt having one end in contact with the oil core and the other end in contact with the needle thread, It is composed of Then, silicone oil has been applied to the needle thread from an oil tank via an oil core and felt.

[0005]

However, in the conventional ESLEN device, since the liquid silicone oil is applied to the needle thread, the silicon thread may be excessively supplied to the needle thread. When the needle thread containing excessively supplied silicone oil is sewn into a sewing product, there is a problem in that excessive silicon oil contained in the needle thread seeps out and adheres to the sewing product, causing stains.

Further, in the conventional Eslen apparatus, since it is supplied to the felt by capillary action, it has been difficult to control the amount of silicone oil applied to the needle thread. For this reason, when the sewing machine rotation speed is low, the time required for the needle thread to contact the felt becomes longer, resulting in an excessive supply of silicone oil to the needle thread. The shortage of silicon oil supply caused a problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides an apparatus for applying lubricating oil to a yarn, which can uniformly apply an appropriate amount of lubricating oil (silicone oil) to the outer periphery of the yarn. The first purpose is to do. It is a second object of the present invention to provide a lubricating oil applying device for a thread, which can easily control the amount of lubricating oil applied according to sewing conditions such as a sewing machine rotation speed and a thread material.

[0008]

According to a first aspect of the present invention, there is provided a thread (10) which is arranged along a thread path from a thread winding to a seam forming portion and which is drawn out together with the seam formation. Is arranged at a predetermined position of this yarn path,
An application section (18, 92) having an internal space (30, 99) through which the yarn can pass; and atomizing means (16, 50, 72, 91, 96) for generating fine-particle lubricating oil applied to the yarn. ,
Supply means (17, 71, 91) capable of supplying the particulate lubricant to the internal space of the coating section is provided.

According to a second aspect of the present invention, in the apparatus for applying a lubricating oil to a yarn according to the first aspect, the atomizing means includes an oil tank (95) storing the lubricating oil, and a lubricating oil in the oil tank. Vacuum generator (96) capable of suction and flow rate generator (91) for supplying high-speed air to the vacuum generator
And a configuration including:

According to a third aspect of the present invention, in the device for applying lubricating oil to the yarn according to the first aspect, the atomizing means includes oil tanks (15, 78) storing lubricating oil. The lubricating oil is atomized by vibrators (22, 51, 73) acting on the stored lubricating oil and excited by a predetermined high frequency.

According to the lubricating oil applying device for the yarns according to the first to third aspects, the lubricating oil in the form of fine particles is supplied to the applying portion and adhered to the yarn. hand,
Lubricating oil is uniformly applied to the outer periphery of the yarn.

According to a fourth aspect of the present invention, in the device for applying lubricating oil to the yarn according to the first aspect, the supply means is provided with air flow generating means (17, 79, 91) for generating an air flow. Configuration.

According to the fourth aspect of the present invention, since the air flow is generated in the circulation path, the lubricating oil is more efficiently deposited.

According to a fifth aspect of the present invention, there is provided the lubricating oil application device for a yarn according to the first aspect, further comprising a heater (3) provided in a yarn path upstream of the application section and heating the yarn. .

According to the fifth aspect of the invention, since the yarn is dehumidified before the application of the lubricating oil, the lubricating oil can be uniformly attached to the yarn without being affected by the working environment such as moisture.

According to a sixth aspect of the present invention, in the device for applying lubricating oil to the yarn according to the fifth aspect, a humidity detecting means (13) for detecting humidity in the air is provided, and based on a detection value of the humidity detecting means. And the heater is controlled.

According to the sixth aspect of the present invention, the heater is controlled based on the value detected by the humidity detecting means, so that the yarn can be more appropriately dehumidified.

According to a seventh aspect of the present invention, in the apparatus for applying a lubricating oil to a thread according to the first aspect, the atomizing means is adapted to a sewing condition (for example, a sewing machine rotation speed, a feed pitch, a thread count, and a thread material). The configuration is such that control is performed in accordance with this.

According to the seventh aspect of the invention, since the atomizing means is controlled according to the sewing conditions, the amount of lubricating oil applied to the yarn can be controlled more accurately.

[0020] According to an eighth aspect of the present invention, there is provided a thread (10) disposed along a thread path from a thread winding to a seam forming portion;
A lubricating oil application unit (18, 9) disposed at a predetermined position in the yarn path and having an internal space (33, 99) through which the yarn can pass.
2) and atomizing means (1) capable of atomizing the lubricating oil into fine particles.
6, 50, 72, 91), a supply path (19, 92) for communicating the atomizing means with the internal space of the lubricating oil application section, and a fine lubricating material toward the internal space of the lubricating oil applying section. Air flow generating means (17, 79) for moving oil.

According to the lubricating oil applying apparatus for a yarn according to the present invention, since the fine lubricating oil is supplied to the lubricating oil applying section and adhered to the yarn, an appropriate amount of the lubricating oil is used. Thus, the lubricating oil is uniformly applied to the outer periphery of the yarn.

According to a ninth aspect of the present invention, in the device for applying lubricating oil to the yarn according to the eighth aspect, exhaust holes (41, 81) are provided for communicating the inside of the lubricating oil applying device with the outside air. The exhaust hole was provided with a filter for capturing lubricating oil.

According to the ninth aspect of the present invention, since the filter does not allow the atomized lubricating oil to leak outside, a comfortable working environment is provided. Further, the lubricating oil that has not adhered to the yarn can be reused.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment of the present invention will be described with reference to FIGS.

A thread winding 2 is provided upright on the sewing machine arm 1. An upper thread path 9 is formed from the thread winding 2 to a stitch forming portion where the upper thread and the lower thread are knotted. In the upper thread path 9, from the spool 2 toward the downstream side (the needle hole side),
A heater 3, a lubricating oil application device 4, a thread tension 5, a balance 6, and a needle 7 are provided in this order.

The heater 3 disposed above the sewing machine arm 1 has a cylindrical shape, and an upper thread 10 is passed through the hole. A heater wire 11 is wound around the inner periphery of the heater 3, and the upper thread 10 is dehumidified by a fan or the like provided inside.

An operation panel 12 and a humidity sensor (humidity detecting means) 13 are arranged above the sewing machine arm 1. From the liquid crystal display touch panel 12, thread count,
Sewing conditions such as a thread type and control conditions such as a heater temperature and an atomization amount can be input. A feed pitch setting dial 8 is provided on the front surface of the sewing machine arm 1 so that an operator can set a predetermined cloth feed amount.

Next, the lubricating oil application device 4 provided downstream of the heater 3 will be described with reference to FIG. The lubricating oil application device 4 includes an oil tank 15 that stores therein silicon oil 21 as a lubricating oil, an atomizing device (atomizing means) 16 provided below the oil tank 15, and a side of the oil tank 15. And an application section 18 provided above the oil tank 15, a supply pipe (supply path) 19, and the like. The air flow generation means 17 and the supply pipe 19 constitute a supply means.

The atomizing device 16 includes a vibrator 22 composed of a piezoelectric element and an oscillation circuit board 23 for applying a predetermined high frequency to the vibrator 22 to excite it. The vibrator 22 includes a stainless steel vibrating plate 24 disposed at the bottom of the tank so as to be immersed in the lubricating oil 21 in the oil tank 15,
4 is made up of a ceramic oscillating element 25 for fixing the same. Then, the oscillation circuit 23 applies a high frequency to the oscillation element 25.

The air flow generating means 17 includes a blower chamber 26 communicating with the upper space 15a in the oil tank, a blower fan 28 disposed in the blower chamber 26, and generating an air flow toward the upper space 15a of the oil tank. And a blower fan motor 29 for rotating the blower fan 28.

The application section 18 is cylindrical and has an internal space 30 through which the yarn can pass. The application section 18 has a through hole 18 through which the upper thread can be inserted along the upper thread path 9.
a and 18b are formed and communicate with the internal space 30, respectively.

The upper space 15a of the oil tank 15 and the internal space 30 of the coating section 18 are communicated by a supply pipe (supply path) 19, and the internal space 30 and the blower chamber 26 are connected to a discharge pipe (discharge path). 20. A circulation path is formed by the upper space 15a of the oil tank 15, the supply pipe 19, the internal space 30, the discharge pipe 20, and the blower chamber 26.

As shown in FIG. 3, the control means 31 of the lubricating oil application device 4 has a built-in CPU (Central Processing Unit) 32. The CPU 32 has a ROM as storage means,
A RAM as a temporary storage unit is connected. RO
In M, data for controlling the vibrator 22, the blower fan motor 29, and the like in accordance with sewing conditions such as a sewing machine rotation speed and a thread type, which will be described later, are stored.

The operation panel 1 is provided on the input side of the control means 31.
2 are provided. The operator operates the operation panel 12
It is possible to input a yarn count indicating a yarn thickness, a yarn type input indicating a yarn material, a heater temperature setting input, and the like. Also,
The input side of the control means 31 is connected to the humidity sensor 13 (humidity detection means), the sewing machine rotation speed detection means 34 for detecting the rotation speed of the sewing machine motor, and the feed pitch detection means 8 set by the operator. I have.

The vibrator 22 is connected to the output side of the control means 31 via a driving circuit 33 including an oscillating element and an oscillating circuit. Also, the heater wire 1 wound around the heater
1 and a blower fan motor 29 provided in the circulation path.

The operation of the first embodiment will be described.

The upper thread 10 from the bobbin 2 is dehumidified by passing through the heater 3, and then is inserted into the through holes 18 a and 18 b of the coating section 18 to pass through the internal space 30.

The control means 31 includes an oscillation circuit (drive circuit) 3
The vibrator 22 is vibrated up and down via 3. This vibration is transmitted to the lubricating oil 21, and a vibration wave is generated in the lubricating oil, and fine oil particles 36 are scattered from above the vibration wave. And
Since the oil particles 36 in the form of fine particles scatter innumerably, the inside of the oil tank 15 is filled with mist-like lubricating oil.

Then, the blower fan motor 29 of the airflow generating means 17 is driven to blow air into the oil tank 15.
The fine oil particles 36 are supplied to the internal space 30 of the application section through the supply pipe 19 by blowing air. The supplied fine oil particles 36 adhere to the outer peripheral surface of the upper thread 10 in the internal space 30, and a state in which the lubricating oil is uniformly applied to the outer periphery of the upper thread is obtained. In addition, the oil droplets 36 that do not adhere or are condensed
Is connected to the oil tank 15 via the discharge pipe 20 and the air blowing chamber 26.
Is returned and reused.

When the frequency applied by the oscillating circuit 33 is increased, the particle size of the scattered oil particles 36 becomes smaller. Further, by increasing or decreasing the number of revolutions of the blower fan, it is possible to adjust the supply amount of atomized fine oil particles to the application section.

The oscillating circuit 33 according to sewing conditions such as the sewing machine rotation speed, feed pitch, thread count, and thread material.
It is also possible to control the frequency of the fan or the rotation speed of the blower fan.

That is, the control means 31 is connected to the sewing machine rotational speed detecting means 34. For example, based on the inputted sewing machine rotational speed and ROM data, the rotational speed of the blower fan is determined in accordance with the sewing machine rotational speed. Control and apply part 1
The supply amount of oil particles 36 (lubricating oil) to 8 is increased or decreased. Further, the thread consumption can be accurately calculated based on the sewing machine rotation speed * feed pitch, and the supply amount of the oil droplets 36 (lubricating oil) to the application unit 18 can be controlled to be increased or decreased.

When the operator inputs the yarn type and yarn count from the operation panel 12, the lubricating oil application device 4 is controlled based on these conditions. For example, when the polyester yarn is changed to the cotton yarn, the rotational speed of the blower fan is increased to increase the supply amount of the oil particles 36, or the frequency of the transmission circuit 33 is decreased to increase the particle diameter. Can also. The lubricating oil application device 4 can be controlled in consideration of the plurality of sewing conditions.

Further, when the heater wire 11 is controlled based on the detection value of the humidity sensor 13, the upper thread 10 which has been dehumidified reliably can be obtained.
Is supplied to the coating section 18, so that the amount of the lubricating oil adhering to the yarn can be made more uniform.

As described above, according to the first embodiment, atomized fine particle lubricating oil is supplied to the application section 18 and adhered to the yarn, so that an appropriate amount of lubricating oil is used. ,
Lubricating oil is uniformly applied to the outer periphery of the yarn.

Also, since a circulation path is formed between the atomizing means 16 and the application section 18, the atomized lubricating oil does not leak outside, providing a comfortable working environment. . Further, the lubricating oil that has not adhered to the yarn can be reused. Then, since an air flow is generated in the circulation path, the lubricating oil is more efficiently attached.

Further, since the yarn is dehumidified before applying the lubricating oil, the lubricating oil can be uniformly attached to the yarn without being affected by the working environment such as moisture.

Further, according to the sewing conditions, the atomizing means 16
, The amount of lubricating oil applied to the yarn can be controlled more accurately.

Next, a modification of the lubricating oil applying device 4 of the first embodiment will be described with reference to FIGS. Note that, in each modification, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. Also, the control method will be omitted if they are the same.

The second embodiment shown in FIG. 4 differs from the first embodiment in that no circulation path is provided. For this reason, the ventilation chamber 26
Is provided with an air hole 40 communicating with the outside air. Also,
The internal space 30 of the application section 18 is open to the atmosphere via an exhaust hole 41. A filter is fitted into the exhaust hole 41 to catch the atomized fine oil particles 36.
The upper threading hole 18b of the application portion is filled with a sponge member 42 having elasticity.

The fine oil particles 36 atomized by the atomizing device 16 are supplied from the oil tank 15 through the supply pipe 19 to the internal space 30 of the coating section by the blowing of the blowing fan 28. It adheres to the upper thread 10 that passes. The oil particles 36 that have not adhered to the upper thread are separated from the air and condensed by a filter provided in the exhaust hole 41. Then, only clean air is released to the outside. The liquid lubricating oil 21 stored in the oil tank 15 may be accumulated in another tank via an exhaust pipe.

Next, a third embodiment will be described with reference to FIG. The third embodiment differs from the first embodiment in the structure of the atomizing device (atomizing means) 50 and additionally includes a liquid level holding means 54 for keeping the level of the lubricating oil 21 in the oil tank constant. Is different.

The atomizing device 50 is fixed to the upper surface of the oil tank 15 and has a vibrator 51 having a tip-side amplitude amplifying section 51a disposed in the oil tank 15, and a wire-like supporting member provided at the bottom of the oil tank. It is constituted by a solid type oil core 53 fixed by 52. Solid oil core 53
Is a sintered body of polyester fiber, one end of which is impregnated with the lubricating oil 21 in the oil tank, and the other end of which is in contact with the amplitude amplifying section 51a of the vibrator. The solid type oil core 53 supplies a certain amount of the lubricating oil 21 to the amplitude amplifying unit 51a by capillary action, and atomizes the lubricating oil 21. Since the solid-type oil core 53 has a heat deformation temperature of 100 ° C. or higher, it does not deform due to the vibration of the vibrator 51.

The liquid level holding means 54 includes an auxiliary tank 55 for storing the lubricating oil to be replenished, conduits 56a and 56b connecting the auxiliary tank 55 and the oil tank 15, a pump 57 provided in the middle of the conduit, and a drive of the pump. A liquid level sensor 59 connected to the control board 58 and fixed at a predetermined position on the side surface of the oil tank;
Consists of

According to the third embodiment, the oil tank 15
When the liquid level of the lubricating oil 21 in the inside drops, the liquid level sensor 59
Detects this, and the pump 57 is driven. Then, a predetermined amount of the lubricating oil 21 is supplied from the auxiliary tank 55 into the oil tank 15 via a conduit. The liquid level in the oil tank 15 is maintained substantially constant. As a result, since the impregnation area of the solid type oil core with the lubricating oil 21 is constant, the lubricating oil supply amount of the oil core is maintained constant, and the amount of atomization by the vibrator 51 can be constant.

Next, a fourth embodiment will be described with reference to FIG. The fourth embodiment is different from the third embodiment in that a liquid level holding unit is provided.

The liquid level holding means 60 comprises a conduit 61, a connecting member 62 and an auxiliary tank 63.

One end of the L-shaped conduit 61 extends along the horizontal reference level of the oil tank 15, and the other end 61a
Are fixed so as to be bent vertically upward. A connecting member 62 is fixed to the other end of the conduit 61.

The connecting member 62 has an O-ring 64
Is attached. A large number of through holes are formed in the conduit contact portion 62a of the connecting member, and a needle-like projection 62b is provided outward.

Auxiliary tank 63 filled with lubricating oil 21
Has its discharge port heat-sealed with a film-like seal and covered. The discharge port side of the auxiliary tank 63 has an O-ring 6
The connection member 4 is fitted on the inner diameter side of the connection member via 4 to maintain airtightness.

When the auxiliary tank 63 is mounted on the holding member 62, the projection 62b of the connecting member pierces the film-like seal. For this reason, the lubricating oil 21 in the auxiliary tank flows out of the auxiliary tank, and the through-hole of the conduit contact portion 62a and the conduit 61
Is supplied to the inside of the oil tank 15.

When the auxiliary tank 63 and the connecting member 62 are fitted, airtightness is maintained by the O-ring 64. For this reason,
When the lubricating oil 21 supplied from the auxiliary tank 63 reaches the reference level A of the oil tank 15, the supply of the lubricating oil 21 is stopped. FIG. 6 shows this initial state, in which the level of the lubricating oil 21 in the auxiliary tank 63 is higher than the reference level A of the oil tank 15.

The atomizing device 50 is connected to the oil tank 15
When the lubricating oil level in the oil tank 15 becomes lower than the reference level A as a result of atomizing and consuming the lubricating oil 21 in the inside, air (bubbles) passes through the conduit 61 and enters the inside of the auxiliary tank 63 and then rises. Then, the liquid level of the auxiliary tank 63 is pushed down, and the lubricating oil 21 is supplied to the oil tank 15. This lubricating oil 21
Is supplied until the liquid level in the oil tank 15 reaches the reference position, and the lubricating oil level in the oil tank 15 is maintained at the reference level A.

As a result, since the impregnation area of the solid type oil core with the lubricating oil 21 is constant, the lubricating oil supply amount of the oil core can be maintained constant, and the amount of atomization by the vibrator 51 can be constant.

A reference numeral 65 denotes a liquid level detection sensor for detecting the remaining amount of the lubricating oil 21 in the auxiliary tank 63. When the remaining amount of the lubricating oil 21 becomes close to zero, it is detected.

Next, a fifth embodiment will be described with reference to FIG.

The lubricating oil application device 70 is
, A supply pipe (supply path) 19, an application section 18, an air suction chamber 71, an atomizing device (atomizing means) 72, and a pump 74.
And a tank 78 and the like. The air suction chamber 71
And the supply pipe 19 constitute supply means.

The atomizing device 72 is composed of an amplitude amplifying member 73 having a horn portion 73a at the front end and a fixing member 75 having an outer diameter screw portion. Oil guide holes 73b and 75a are provided to communicate the lubricating oil 21 to the portion 73a. The atomizing device 72 is fixed to the side of the atomizing chamber 77 by a fixing member 75,
The tip horn portion is disposed in the atomizing chamber 77.

A tank 78 filled with lubricating oil is arranged near the atomizing chamber 77. Then, the lubricating oil 21 in the tank 78 is supplied to the tip horn portion 73a of the amplitude amplifying member via the conduit 76 and the through holes 73b and 75a by the driving of the pump 74. When the oil particles 36 in the atomizing chamber 77 are liquefied, they are returned to the tank 78 via the conduit 83.

The atomizing chamber 77 and the internal space 30 of the coating section 18
Are connected by a supply pipe 19. Also, the coating unit 18
A suction chamber 71 is provided in the upper part of. An electric fan motor 79 (air flow generating means) is arranged in the suction chamber 71, and sucks air in the suction chamber 71 by rotation of the fan 80 and discharges the air toward the discharge hole 81. A filter is attached to the discharge hole 81. The internal space 30 of the application section 18 and the suction chamber 71 communicate with each other through a through hole 82.

The fine oil particles 36 atomized by the atomizing device 72 are supplied from the atomizing chamber 77 to the internal space 30 of the coating section by the intake air flow generated by the rotation of the fan 80. The supplied fine oil particles 36 adhere to the surface of the upper yarn and then diffuse, so that the upper yarn is uniformly covered with the film of the oil particles 36 (lubricating oil). Oil particles 36 that did not adhere to the upper thread
The filter provided in the exhaust hole 81 separates from the air and forms dew. Then, clean air is released to the outside.

That is, the inside of the lubricating oil applying device 70 and the outside air are communicated with each other through the exhaust hole 81. In particular, it is preferable to provide the exhaust hole in the inner space 30 of the application section because the flow of the oil particles 36 becomes smooth. Further, it is more preferable to provide an exhaust hole in the upper part of the application section internal space 30 because the lubricating oil captured by the filter easily falls.

Next, a sixth embodiment will be described with reference to FIG.

The atomizing device 90 includes a flow rate generating means 91 composed of a fan or a pump for generating an air flow, one end of the atomizing port 91a of the flow rate generating means 91 and the other end of the supply port 91b.
And an oil tank 95 provided near the discharge port 91a. The flow velocity generating means 91 constitutes a supply means.

In the internal space (coating section) 99 above the box-shaped circulation path 92, insertion ports 93 and 94 into which threads can be inserted are formed at both ends. In addition, the box-shaped circulation path discharge port 91a
A vacuum generating section 96 having an ejector pump function for sucking air on the secondary side is formed in the vicinity. The vacuum generating section 96 is T-shaped and includes a supply section 96a immersed in lubricating oil 97 of an oil tank 95 and a central throttle-shaped nozzle section 96b.

The air supplied by the flow velocity generating means 91 is sent to the diffusion side Y after passing through the temporary side X. At this time, since air flows in at a high speed, a negative pressure (vacuum) is generated on the secondary side Z. Due to this negative pressure, the lubricating oil 97 of the supply section 96a is sucked, and further atomized fine oil particles 98
And supplied to the circulation path 92. Then, the supplied fine oil particles 98 adhere to the surface of the upper thread and then diffuse to uniformly cover the upper thread. The oil particles 98 that have not adhered to the upper thread are reused or collected.

In the sixth embodiment, fine oil particles 98 (lubricating oil) can be attached to the upper thread by a simple mechanism.

In each of the above embodiments, the coating unit 1
As a configuration for passing the thread through 8, 99, for example, the application section is configured to be separable so as to open the threading holes (18a, 18b, 93, 94) so that the thread communicates with the threading holes. Or closed and closed, or a detachable venturi tube is connected to the coating section between the threading holes, and the tip of the thread inserted into the venturi tube is fed between the threading holes by airflow. The venturi tube may be removed afterwards.

The present invention is not limited to the above embodiment, but can be variously modified.

For example, in the above embodiment, the case where lubricating oil is applied to the upper thread has been described. Alternatively, a lubricating oil applying device is provided in the lower thread path of the overlock sewing machine, and the lubricating oil is applied to the looper thread. It is easy to think.

In the above embodiment, the lubricating oil application device is controlled according to the sewing conditions and the like. Instead, the vibrator 22, the heater wire 11, and the blower fan motor 29 are automatically kept constant while the sewing machine is sewing. Or simply manually moving the vibrator 22, the heater wire 11, and the blower fan motor 29 can be easily considered.

Further, the atomizing device 72 of the fifth embodiment can be replaced with the atomizing devices of the first and third embodiments,
It is easily conceivable to replace the atomizing device 50 of the embodiment with the atomizing devices of the second and fifth embodiments.

[0083]

As described above, according to the lubricating oil applying apparatus for the yarn according to the first to third aspects, the lubricating oil in the form of fine particles is supplied to the applying section and adhered to the yarn. Using the amount of lubricating oil, the lubricating oil is evenly applied to the outer periphery of the yarn.

According to the fourth aspect of the present invention, since an air flow is generated in the circulation path, the lubricating oil is more efficiently deposited.

According to the fifth aspect of the present invention, since the yarn is dehumidified before applying the lubricating oil, the lubricating oil can be uniformly attached to the yarn without being affected by the working environment such as moisture.

According to the sixth aspect of the present invention, the heater is controlled based on the value detected by the humidity detecting means, so that the yarn can be more appropriately dehumidified.

According to the seventh aspect of the present invention, since the atomizing means is controlled according to the sewing conditions, the amount of lubricating oil applied to the yarn can be controlled more accurately.

According to the eighth aspect of the present invention, the lubricating oil in the form of fine particles is supplied to the lubricating oil application section and adheres to the yarn. Lubricating oil is applied uniformly.

According to the ninth aspect of the present invention, since the atomized lubricating oil does not leak to the outside by the filter, a comfortable working environment is provided. Further, the lubricating oil that has not adhered to the yarn can be reused.

[Brief description of the drawings]

FIG. 1 is a front view of a device for applying lubricating oil to yarn according to the present invention.

FIG. 2 is an explanatory diagram of the atomizing device according to the first embodiment.

FIG. 3 is a block diagram of a device for applying lubricating oil to yarn according to the present invention.

FIG. 4 is an explanatory diagram of an atomizing device according to a second embodiment.

FIG. 5 is an explanatory view of an atomizing device according to a third embodiment.

FIG. 6 is an explanatory view of an atomizing device according to a fourth embodiment.

FIG. 7 is an explanatory view of an atomizing device according to a fifth embodiment.

FIG. 8 is an explanatory view of an atomizing device according to a sixth embodiment.

[Explanation of symbols]

 10. Thread 30 Internal space 99 Internal space 16 Atomizing means (Atomizing device) 50 Atomizing means (Atomizing device) 72 Nebulizing means (Atomizing device) 91 Flow velocity generating means (atomizing means, air flow generating means) 95 oil tank 96 vacuum generating section 15 oil tank 78 oil tank 22 vibrator 51 vibrator 73a horn section ( Vibrator) 19 supply path (supply pipe) 20 discharge path (discharge pipe) 92 circulation path (supply path, discharge path) 17 air flow generating means 83 air flow generating means 3 Heater 13 Humidity detecting means 41 Exhaust hole 81 Exhaust hole 98 Oil particles (lubricating oil) 21, 97 Liquid lubricant

Claims (9)

[Claims] 1. A thread disposed on a path from a thread winding to a seam forming section and drawn out together with stitch formation; a coating section disposed on the thread path and having an internal space through which the thread can pass; An apparatus for applying lubricating oil to a yarn, comprising: atomizing means for generating fine-particle lubricating oil to be applied; and supplying means capable of supplying the fine-particle lubricating oil to an internal space of the application section. 2. A device for applying lubricating oil to a yarn according to claim 1, wherein said atomizing means comprises: an oil tank storing lubricating oil; a vacuum generating unit capable of sucking lubricating oil from said oil tank; Flow rate generating means for supplying high-speed air to the vacuum generating section,
A device for applying lubricating oil to yarn, comprising: 3. The device for applying lubricating oil to a yarn according to claim 1, wherein said atomizing means includes: an oil tank storing lubricating oil; and a predetermined high frequency acting on the lubricating oil stored in said oil tank. And a vibrator excited by the lubricating oil. 4. The apparatus for applying lubricating oil to a yarn according to claim 1, wherein said supply means includes an air flow generating means for generating an air flow. apparatus. 5. An apparatus for applying lubricating oil to a yarn according to claim 1, further comprising a heater provided in a yarn path upstream of said application section for heating the yarn. . 6. An apparatus for applying lubricating oil to a yarn according to claim 5, wherein humidity detecting means for detecting humidity in the air, and control means for controlling said heater based on a detected value of said humidity detecting means. A device for applying lubricating oil to a yarn, comprising: 7. The apparatus for applying lubricating oil to a yarn according to claim 1, wherein said atomizing means is controlled in accordance with sewing conditions. 8. A thread disposed along a thread path from a thread winding to a stitch forming section; a lubricating oil application section disposed at a predetermined position of the thread path and having an internal space through which the thread can pass; Atomizing means capable of atomizing the fine particles into fine particles, a supply path for communicating the atomizing means with the internal space of the lubricating oil application section, A device for applying lubricating oil to yarn, comprising: an air flow generating means for moving. 9. The device for applying lubricating oil to a yarn according to claim 8, wherein an exhaust hole communicating the inside of the lubricating oil applying device with the outside air is provided, and a filter for capturing lubricating oil is provided in the exhaust hole. A device for applying lubricating oil to a yarn, characterized by being provided.