JPH05287631A - Crimper - Google Patents

Abstract

PURPOSE:To form crimps uniform in the longitudinal direction by arranging a suitable number of sensors at the outlet of a cooler and controlling the heating conditions so as to keep branched points of the crimped yarn within a prescribed range. CONSTITUTION:Yarn of 50-10000 denier composed of continuous filaments of nylon, a polyester or polypropylene is introduced into a heating nozzle 25, heated, then crimped while applying the buckling thereto in a stuffing box 27 and subsequently cooled in a cooler 29 to fix crimps. When the crimped yarn is delivered with a delivery roller, a flow rate control valve 111 interposingly installed together with a hot-air tubular heater 109 in the course of a pipe 105 connecting the heating nozzle 25 to a heating fluid source 107 through a controller 103 based on signals sensed with sensors (95A), (95B), (97A), (97B), (99A), (99B), (101A) and (101B) for sensing branched points of the crimped yarn provided at a suitable interval on the outlet side of the cooler 29 is controlled with a driving motor 117. Thereby, the pressure and flow rate of hot air are regulated so as to keep the branched points of the crimped yarn within a prescribed range.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crimping machine,
More specifically, the present invention relates to a crimping machine capable of obtaining a uniform crimped yarn by eliminating fluctuation of the crimped yarn.

[0002]

2. Description of the Related Art Conventionally, after a yarn is pushed into a stuffing box to be crimped, the crimped yarn is cooled by a cooling device to be heat-fixed and wound on a paper tube through a delivery roller. Crimping machines are already well known.

[0003]

By the way, when the crimped yarn cooled by the cooling device is delivered to the delivery roller,
The branch point at which the aggregate (lump) of crimped yarns cooled by the cooling device is stretched with a constant tension is not always constant but fluctuates. Therefore, when the crimped state of the crimped yarn after being wound is measured, uneven crimping occurs in the longitudinal direction of the crimped yarn, and a uniform crimped yarn cannot be obtained. was there.

In order to solve the above problems, an object of the present invention is to keep a branch point, which is run while being stretched to a constant tension from a group of crimped yarns passing through a cooling device, within a certain range. Another object of the present invention is to provide a crimping machine which suppresses fluctuations and imparts uniform crimping in the longitudinal direction of the crimped yarn.

[0005]

In order to achieve the above object, the present invention provides a heating nozzle for heating a yarn and a crimp while buckling the yarn heated by the heating nozzle. When a crimping machine equipped with a stuffing box and a cooling device for fixing the crimps applied by the stuffing hox is used, and when the crimped yarn cooled by the cooling device is delivered to a delivery roller. Is provided in the middle of a pipe connected between the heating nozzle and the heating fluid source, and an appropriate number of sensors provided on the outlet side of the cooling device in order to maintain the branch point of the crimped yarn in a certain range. A flow control valve, a variable drive motor that controls the flow control valve, and a drive motor that is controlled based on the detection signal detected by the sensor. A control device that, to constitute a winding contraction processing machine provided with a.

Further, it is preferable that a plurality of the above-mentioned sensors are provided at appropriate intervals, or that the sensors detect the branch points of the crimped yarns based on the amount of the crimped yarns. Further, it is desirable that a hot air tube heater is provided in the middle of the pipe connected between the heating nozzle and the flow rate control valve.

[0007]

By using the crimping machine of the present invention,
The yarn is heated by the heating nozzle and pushed into the stuffing box to be crimped. After this crimp is cooled by the cooling device, it is sent to the sending roller,
It is wound on a paper tube to obtain crimped yarn. While the aggregate (lump) of crimped yarn that has passed through the cooling device is being sent out by the delivery roller, it is placed on the outlet side of the cooling device so that the branch point stretched to the crimped yarn does not change under a constant tension. To adjust the pressure of the heating fluid sent to the heating nozzle so that the branch point can be maintained within a certain range as detected by the sensor provided, the drive motor is made variable by the control from the controller, and the flow control valve Opening and closing or adjusted. Thus, a uniform crimped yarn is obtained without uneven crimping in the longitudinal direction of the wound crimped yarn.

[0008]

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

With reference to FIGS. 6 and 7, the crimping machine 1 crimps a yarn of, for example, about 50 to 10,000 denier made of long fibers such as nylon, polyester and polypropylene. The crimping machine 1 is provided with a lower frame 3 laid on a floor surface, for example, and a column 5 is erected on the lower frame 3.

A first tensor 7 for applying tension to the yarn is provided on the upper right side of the column 5 in FIG. A yarn cutter 9 is provided below the first tensioner 7.
Is provided. Further, a mounting frame 11 is attached to the column 5 below the yarn cutter 9 with a bolt or the like, and for example, a rod-shaped first goded roller 1 for preheating the yarn is attached to the mounting frame 11.
3 and a first hot roller 15 having a cylindrical shape, for example, are provided with an appropriate interval.

On the lower column 5 to which the mounting frame 11 is mounted, another mounting frame 17 or bolts is mounted. The mounting frame 17 is provided with, for example, a rod-shaped second goded roller 19 for preheating the yarn and a cylindrical second hot roller 21, for example, at appropriate intervals.

In FIG. 6 of the column 5, a supporting frame 23 is mounted between the mounting frame 11 and the mounting frame 17, and a cylindrical heating nozzle 25 is provided at the tip of the supporting frame 23. There is. A stuffing box 27 is detachably provided on the heating nozzle 25, and a cooling cylinder 29 as a cooling device is connected to the stuffing box 27. A slit 31 for passing a thread is formed in the cooling cylinder 29 in the vertical direction. The cooling cylinder 2
9 is attached via a suction pipe 33 supported by the column 5.

A support frame 35 is attached to the column 5, and a second tenser 37 is provided at the tip of the support frame 33 above the cooling cylinder 29. A support frame 39 is attached to the upper part of the column 5 with a plurality of bolts or the like.
At a position above the second tensor 37 in, a delivery roller 41 for delivering the yarn is rotatably supported. A nip roller 43 for nipping a yarn is rotatably provided on the delivery roller 41.

On the left side of the second sensor 37 in FIG. 6 of the column 5, a yarn guide 45 and a thread break sensor 47 are provided.
Are provided at appropriate intervals, and the mounting frame 1
On the column 5 on the left side of 7, a winding drive roller 51 which is rotatable via a support bar 49 is supported. A bracket 53 is attached to the lower left part of the column 5 with a plurality of bolts or the like.
7, bearings 55 are provided on both sides, and a shaft 57 is attached between the bearings 55. A sliding member 59 movable in the left-right direction in FIG. 7 is attached to the shaft 57. Has been. Flanges 65 for sandwiching the paper tube 63 for winding the crimped yarn are attached to both sides of the leading end of the winding arm 61. The left side flange 65 is attached to the tip of the left side winding arm 61 in FIG. 6 via a shaft 67. A handle 69 is provided on the left side of the shaft 67.

An operation panel 71 is attached to the central portion of the left side edge of the column 5. The operation panel 71 is provided with a pressure setter 73 for setting pressure, a temperature setter 75 for setting temperature, a speed setter 77 for setting speed, and the like.

With the above construction, for example, several yarns Y ₁ are unwound from a raw yarn pan (not shown) and sent to the first tensor 7 via a yarn guide (not shown) to give a constant tension. .. Further, the yarn Y ₁ passes through the yarn cutter 9 and
The first goded roller 13 and the first hot roller 15 are wound several times to be preheated. First hot roller 15
The temperature is set appropriately according to the type and thickness of the yarn Y ₁ .

The yarn Y _{1 which} has been preheated by the first hot roller 15 is further wound around the second goded roller 19 and the second hot roller 21 several times to be preheated again, and then sent to the heating nozzle 25. And heated to a constant temperature. The heating nozzle 25 is designed to send a constant amount of hot air according to the type and thickness of the yarn Y ₁ .

The yarn Y ₁ heated by the heating nozzle 25 is fed into the stuff ink box 27 to be buckled and crimped, and further cooled by the cooling cylinder 29 to fix the crimp. .. Outside air is sucked into the cooling cylinder 29 to be cooled.

The crimped yarn Y _{2 which} has passed through the cooling tube 29 is given a constant tension by the second tensor 37 and is sent out by the roller 41 and the nip roller 43, so that the yarn guide 4
5. After passing through the thread breakage sensor 47, the paper tube 63 rotated by the winding drive roller 51 is wound by a certain amount under a certain tension. The crimping machine 1 is controlled by operating the operation panel 71 to set processing conditions.

As shown in FIG. 5, the cooling cylinder 29 as the cooling device is provided with a case 79 on the outside,
The case 79 has a cooling pipe 8 having a thread passage hole 81.
3 or is stretched in the vertical direction. A cooling chamber 85 is formed between the cooling pipe 83 and the case 79. Further, one end of a pipe 87 is connected to the right side wall of the case 79 in FIG.
The other end of is connected to a suction device (not shown).

The crimped yarn Y ₂ provided with the stuffing box 27 in the above-described configuration is supplied from below into the yarn passage hole 81 of the cooling pipe 83 in a crimped state, and sequentially runs upward. It is sent to the delivery roller 41 via the second tensor 37. While the crimped yarn Y ₂ is being supplied into the yarn passage hole 81 of the cooling pipe 83, the outside air is sucked into the yarn passage hole 81 by a suction device (not shown), and the cooling chamber 8
5 is sucked through a pipe 87 and cooled. By cooling the cooling pipe 83, the crimped yarn Y ₂ in the yarn path hole 81 is cooled.

[0022] A hollow cylindrical member 89 made of cloth or the like is provided. Inside the hollow cylindrical member 89, a yarn passage hole 91 communicating with the yarn passage hole 81 is provided extending vertically. A ring member 93 is attached to the upper portion of the hollow cylindrical member 89.

A plurality of, for example, a plurality of first, second, third and fourth portions are provided on the outer peripheral portion of the hollow cylindrical member 89 at an appropriate interval L.
Sensors 95, 97, 99, 101 are provided. The first sensor 95 is, for example, a photoelectric sensor, and 95A is a light emitting device and 95B is a light receiving device. 2nd, 3rd
Similarly to the first sensor 95, the fourth sensors 97, 99 and 101 are light emitting devices 97A, 99A and 101A, and 97B and 99.
B and 101B are light receiving devices. In addition, between the first sensor 95 and the second sensor 97, the second sensor 97 and the third sensor 97
Between the sensor 99 and the third sensor 99 and the fourth sensor 1
The distance L between the yarns 01 and 01 can be adjusted so that it can be changed depending on the thickness of the yarn Y ₁ and the crimped state.

The first, second, third and fourth sensors 95,
97, 99, 101 light receiving devices 95B, 97B, 99
B and 101B are, as shown in FIG.
It is connected to 03. Further, one end of the pipe 105 is connected to the heating nozzle 25, and the pipe 105
A pressure chamber source 107 as a heating source is connected to the other end of the.

A heating nozzle 25 is provided in the middle of the pipe 105.
A hot air tube heater 109, a flow rate control valve 111, and a pressure reducing valve 113 are sequentially provided from the side. The flow rate control valve 111 includes a flow rate control valve 111A for pressure setting conditions which is set according to the type and thickness of the yarn Y ₁ , and a branch point of the crimp Y ₂ for uniformizing the crimped yarn Y ₂ in the longitudinal direction. Is provided in parallel with the pipe 105.

The control device 103 includes an inverter 115.
A drive motor 117 is connected via a coupling motor, and the drive motor 117 is coupled to the flow rate control valve 111B via a coupling 119.

With the above structure, when the crimped yarn Y ₂ in the yarn passage hole 81 in the cooling pipe 81 is sent to the second tensor 37 through the yarn passage hole 91 in the hollow cylindrical member 89, the yarn is introduced into the yarn passage hole 91. As shown in FIG. 5, a branch point Y _{3 that} is stretched from a certain aggregate (lump) of the crimped yarns Y ₂ with a constant tension is provided with a second sensor 97 and a third sensor 99.
, Ie, the light receiving device 97B of the second sensor 97 is ON, and the light receiving device 99B of the third sensor 99 is OF.
The time of F is a normal time, and by controlling so as to maintain this state, uniform crimping can be obtained in the longitudinal direction of the crimped yarn Y ₂ .

More specifically, the control method will be described in more detail. As shown in FIG. 1, the compressed air from the pressure chamber source 107 is sent to the pipe 105 and is decompressed by the decompression valve 113, and then the flow control valve. It is heated by the hot air tube heater 109 via 111. The heated heating air is sent to the stuffing box 27 through the heating nozzle 25, where the yarn Y ₁ is heated to be crimped.
It is cooled by the cooling tube 29, heat-fixed, and sent as the crimped yarn Y ₂ .

When the branch point Y ₃ of the crimped yarn Y ₂ is detected by each of the sensors 95, 97, 99, 101, a detection signal is taken into the control device 103, and the control device 103 changes depending on the situation at that time. By controlling the inverter 115 and adjusting the rotation of the drive motor 117, the opening / closing of the flow rate control valve 111B is adjusted. That is, the flow rate of the air sent to the hot air tube heater 109 is adjusted.

For example, as shown in FIG. 2A, when the branch point Y ₃ of the crimped Y ₂ does not reach the first sensor 95, the first and second sensors 95, 97. Or O
A command is given from the control device 103 to the inverter 115 so that the N, third and fourth sensors 99 and 101 are turned off, the frequency of the inverter 115 is set to high speed, and the flow control valve 111B is continuously closed to set the air pressure. Control to bring down. And FIG.
As shown in (B), when the branch point Y ₃ of the crimp Y ₂ is located between the first sensor 95 and the second sensor 97, the first sensor 95 is turned off, and the first sensor 95 is turned off. 2 sensor 97
Is turned on and the third and fourth sensors 99, 101 are turned off, a command is given from the control device 103 to the inverter 115 after a certain set time, and the frequency of the inverter 115 is intermittently operated at the normal set frequency. The flow rate control valve 111B is closed to control the air pressure. The air down in the state of FIG. 2B is smaller than the air down in the state of FIG. 2A.

As shown in FIG. 2C, it is normal when the branch point Y ₃ of the crimped yarn Y ₂ is located between the second sensor 97 and the third sensor 99. , All the sensors 95, 97, 99, 101 are controlled to be turned off and maintained.

As shown in FIG. 2D, the branch point Y ₃ of the crimped yarn Y ₂ is at the third sensor 99 and the fourth sensor 101.
If the third sensor 99 is located between
N, 1st, 2nd, 4th sensor 95, 97, 101 OF
A command is given from the control device 103 to the inverter 115 so as to be F, and the flow rate control valve 111B is opened by intermittent operation at the frequency of the inverter 115 at the normal set frequency to control the air pressure to increase.

Further, as shown in FIG. 2 (E),
When the branch point Y ₃ of the crimped yarn Y ₂ is located above the fourth sensor 101, the third and fourth sensors 99, 10
A command is given from the control device 103 to the inverter 115 to turn on 1 and turn off the first and second sensors 95 and 97, the frequency of the inverter 115 is increased, and the flow rate control valve 111B is continuously closed to turn on the air. Control to increase the pressure of. The pressure of the air in this case is higher than that in the state shown in FIG.

As described above, as the heating fluid supplied to the heating nozzle 25, for example, the branch point Y ₃ of the crimped yarn Y ₂ is placed between the second sensor 97 and the third sensor 99, that is, within a certain range. to adjust the flow rate of the heating air, by controlling the flow rate control valve 111B, it can be wound contraction yarn Makichijimiito Y ₂ to obtain a uniform crimped to the longitudinal direction of the normal, wound contraction yarn Y _2.

FIG. 3 shows another embodiment which is an alternative to FIG. That is, in FIG. 3, the hollow cylindrical member 89
A sensor 121 having a height H is provided on the outer peripheral portion of the sensor 121.
21A is a light emitting device and 121B is a light receiving device.
Then, the sensor 121 detects the amount of impediment of the entire crimped yarn Y ₂ supplied into the sensor 121, calculates the crimp amount from the detection result, and as shown in FIG.
By setting the relationship between the height H of the sensor 121 and the crimp amount in advance, the position of the branch point Y ₃ of the crimped yarn Y ₂ can be detected. By detecting the position of the branch point Y ₃ continuously, the position of the branch point Y ₃ (1 / 2H ±
It is possible to control the flow rate control valve 111B by the above-mentioned air circuit so as to enter the height position of α), and other configurations and operations are almost the same as those described in FIG. Omit it.

[0036] Thus, when the branch point _{Y 3} of Makichijimiito _{Y 2} is in the height position of the (1 / 2H ± α) of the sensor 121 is normal wound contraction of Makichijimiito _{Y 2,} crimped A uniform crimp can be obtained in the longitudinal direction of the yarn Y ₂ .

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. Even in a touch sensor has been described in example otherwise using a photoelectric sensor as a sensor for detecting a branch point Y ₃ of Makichijimiito Y ₂ in the present embodiment is adaptable. The heating fluid may be heated steam.

[0038]

As will be understood from the above description of the embodiments, according to the present invention, since the structure is as described in the claims, an appropriate number of sensors are provided at the outlet of the cooling device. By providing the control point, for example, the pressure or the flow rate of hot air as the heating condition so that the branch point of the crimped yarn is within a certain range, the crimped yarn is continuously uniform without uneven crimping in the longitudinal direction. It is possible to obtain a crimp.

[0039]

[Brief description of drawings]

FIG. 1 is a control circuit diagram showing a main part of the present invention, in which a plurality of sensors are provided at an outlet of a cooling device, and the positions of branch points of crimped yarns are controlled by the sensors.

FIG. 2 is an operation explanatory diagram in which the branch point shown in FIG. 1 is controlled by a plurality of sensors.

FIG. 3 is an explanatory view of another embodiment replacing FIG.

FIG. 4 is an example diagram showing a relationship between a height of a sensor and a crimp amount.

FIG. 5 is an enlarged detailed view in which a plurality of sensors are provided at the outlet of the cooling device.

FIG. 6 is a front view of a crimping machine according to an embodiment of the present invention.

FIG. 7 is a side view of FIG.

[Explanation of symbols]

1 Crimping machine 25 Heating nozzle 27 Stuffing box 29 Cooling cylinder (cooling device) 79 Case 81 Thread hole 83 Cooling pipe 89 Hollow cylindrical member 95, 97, 99, 101 Sensor 103 Control device 105 Piping 107 Pressure chamber source ( Heating fluid source) 111, 111A, 111B Flow rate control valve 115 Inverter 117 Drive motor

Claims (4)

[Claims] 1. A heating nozzle for heating a yarn, a stuffing box for giving a crimp while buckling the yarn heated by the heating nozzle, and a crimp provided by this stuffing box. A crimping machine comprising a cooling device to be fixed, and the cooling device to keep the branch point of the crimped yarn in a certain range when the crimped yarn cooled by the cooling device is sent to a delivery roller. An appropriate number of sensors provided on the outlet side of the device, a flow control valve provided in the middle of a pipe connected between the heating nozzle and the heating fluid source, and a variable control valve for controlling this flow control valve. Drive motor,
A crimping machine comprising: a control device that controls a drive motor based on a detection signal detected by the sensor. 2. The crimping machine according to claim 1, wherein a plurality of the sensors are provided at appropriate intervals. 3. The crimping machine according to claim 1, wherein the sensor is a sensor that detects a branch point of the crimped yarn based on the amount of the crimped yarn. 4. The crimping machine according to claim 1, wherein a hot air tube heater is provided in the middle of a pipe connected between the heating nozzle and the flow rate control valve.