KR920008543B1 - Weft supply regulation equipment of air jet loom - Google Patents

Abstract

In the weaving machine mounted with a jacquard or dobby unit, the device is installed with a weft insertion unit having an electronic circuit instead of a shuttle and being operated by means of variance-type air-jet using a driving controller of solenoid air valve which is unrelated with varying rotation speed. The device consists of a shuttle (1), a picker (4), a feeder (8) and a picking unit composed of a rotary shaft (17), cam (18) and connecting rod (19).

Description

Weft feed regulator in air jet looms

1 is a front view of the weft feeder assembly of a conventional shuttle loom (shuttle loom),

2 is a front view illustrating that the solenoid air valve drive controller 9 according to the present invention is installed in the weft supply device of the conventional air jet loom.

3 is an illustration of an electronic circuit of a device for adjusting the time difference and the individual opening time of the solenoid air valve for jetting jet air in the present invention,

4 is an exemplary view showing the role of the individual opening and the ENA when weaving and opening the solenoid air valve of each time zone sequentially.

* Explanation of symbols for the main parts of the drawings

1: shuttle (north) 2: north house

3: north road 4: picker

5 stick 6 picking device

7: Coon 8: Weft Side Feeder (FEEDER)

9: solenoid air valve drive controller according to the present invention

10: main nozzle 11: sub-nozzle

12: solenoid air valve 13: body zip

14 body 15 weft

16: compressed air auxiliary tank C: condenser

17: rotating shaft of the loom 18: metal projection (chem) fixed to the rotating shaft

19: connection portion for transmitting power to the stick VR: variable resistor VR ₁ : parallax adjustment device

That is, opening interval (time difference) adjusting device between output terminals when CD4017 output terminals 1,2,3,4,5, are sequentially opened.

VR ₂ ～ VR ₅ : Individual open time adjusting device RLS: Solenoid air valve

S _{1 to} S ₄ : Input terminal of IC CD 4043

Q: Output terminal of IC CD 4043 R: Reset

ENA: Abbreviation for ENABLE CLX: Abbreviation for CLOCK Input Terminal

The present invention is a high-quality fabric equipped with a jacquard or dobby device to install a weft feeder by an improved air jet instead of a weft feeder by a shuttle among shuttle weaving machines capable of weaving high-quality fabrics by using a jacquard or dobby machine. The present invention relates to a weft feed adjusting device for a weaving air jet loom. However, in the present invention, the term "dobigigi" means a high-quality dobigi that can weave high-quality fabrics.

Conventional shuttle looms have the feature of manufacturing jacquard or dobby fabrics of high quality by installing a jacquard or dobby loom, but the weft supply by shuttle is not only performed at a low speed but also the consumption of materials is severe and the economical defects In addition, there is a defect that the production cost is also increased due to problems such as the production efficiency can not be improved and the supply device by the shuttle is complicated.

In order to solve the problem of the shuttle loom, the weft feeder structure is simple, and the air jet loom has been developed that can improve the production efficiency and greatly reduce the manufacturing cost by enabling high speed operation. Since it is operated at a high speed, it is not possible to install a jacquard machine or a high-grade dobby machine that requires a relatively low speed, so there is a problem that a high-quality jacquard or fern fabric cannot be manufactured with the current air jet loom.

The present invention provides an air jet loom equipped with a jacquard or dobby device that can take advantage of the conventional jacquard or dobby rig shuttle loom and the advantages of an air jet loom that can operate at high speed, and eliminate the disadvantages of the weaving machine. It is for the purpose. That is, the present invention is a parallax type weft using an electronic circuit that is improved to the air jet improved by the present invention instead of the weft supply device of the shuttle loom equipped with a conventional jacquard machine or dobby device to achieve the above object. By using a supply control device, it provides a jacquard machine or an air jet loom equipped with a dobby machine, which has not been possible until now, so that the manufacturing cost can be relatively high and the manufacturing speed can be relatively high, thereby producing a high quality jacquard or dobby fabric. The present invention has been made to provide an improved loom, which is summarized as follows.

First, the present invention is characterized in that it is possible to produce a large amount of jacquard or dobby belonging to a high-quality product at a relatively high speed at a low speed by allowing the jacquard or dobby machine to be installed in an air jet loom that has not been conventionally available. .

Second, in order to solve the side effects due to the remarkable difference in driving speed between the jacquard machine or the dobby machine in the air jet loom, the present invention uses an electronic circuit instead of the rotation angle detection type weft supply device of the conventional air jet. Air jet by using a differential weft feed regulator that is independent of the rotational speed change of the loom shaft (speed change according to the voltage change during weaving, in particular the speed change in the process of reaching the constant speed when starting the loom). The second feature is that the side effects of the high speed operation of the loom and the low speed operation of the jacquard or the potter are eliminated.

That is, the conventional air jet loom is to supply the weft yarn by the rotation angle detection method, so that the weft yarn is supplied by the injection of the jet air in the manner by the detection of the rotation angle of the rotation shaft for each jet air supply solenoid air valve. If there is a change in the rotational speed (speed change during the acceleration period required to reach a constant speed due to the starting inertia at the start of the motor) Since it is incomplete in speed, it is a situation that a strong starting power is applied to the motor so that it can be operated at a speed similar to that of normal speed operation even during a period of use before operating at a normal rotational speed.

Therefore, it is impossible to detect the rotation angle of existing air jet looms in the looms that require a long starting time to reach a constant speed.

As a result, existing air jet looms require strong initial starting power, which shortens the life of the motor, causing severe mechanical wear due to power loss and overload due to abnormal usage. In addition, in the conventional jet control method, since the secondary solenoid air valve is opened, that is, the sub-nozzles 11 are opened at a time, the tension of the weft yarn supplied by the main nozzle 10 to the destination is constant. While the motor of the loom has a low start as in the case of the loom, the weft yarn by the opening of the main nozzle 10, that is, the primary solenoid air valve, in particular the primary Since the time to the sub-nozzle is irregular (that is, prolonged), it is impossible to maintain a constant tension, and thus the weft is entangled in the middle, or the parallax of the rotation angle detection is continuously changed in the process of rotating at high speed at low speed. Many problems arise because of the inability to adjust by the inertia of the weft.

초 내지 1초의 범위내에서 임의 조정하게 하여 근접 스위치에 의한 스타트(START) 검출 신호만으로 이미 조정된 시간에 의하여 시차적으로 순차개방시키므로서 직기 모터의 슬로우스타트 동안은 물론 그후의 회전 속도의 변화에서 위사가 위입 도중에 얽히는 현상을 일으키지 않고 일정한 장력을 유지하면서 효과적으로 위사가 목적지점까지 도달될 수 있게 위입시키게 되는데, 이에 필요한 분사력으로 미루어 보아

초의 시차는 최소한의 필요한 수치이며, 1초는 최대한의 필요한 수치이다.In the present invention, in order to solve such a problem of the conventional air jet apparatus, the individual opening time of each jet control supply solenoid air valve and the total disparity opening time are

By arbitrarily adjusting within the range of seconds to 1 second, the sequential opening is performed sequentially by the time already adjusted by only the START detection signal by the proximity switch, so that the rotation speed of the loom motor as well as the subsequent change in the rotation speed thereafter. The weft yarn is effectively entwined to reach the destination point while maintaining a constant tension without causing entanglement during the entrainment.

The parallax of seconds is the minimum necessary value, and one second is the maximum necessary value.

The choice of this parallax range depends on the weight of the weft yarn used, the fineness and the density of the fabric.For example, the weft is short and the weight is reduced for the weft with the property of being light in weight or easy to indent. It is desirable that the weft of the heavy or hard to enter the nature of the parallax to be long.

The constitution and effects of the present invention will be described below with reference to the embodiment.

EXAMPLE

A jacquard fabric was manufactured at 180 RPM using a differential weft feed control device by air jet using an IC electronic circuit having the following configuration instead of the conventional weft feed device by a shuttle loom equipped with a jacquard machine.

The function of the IC electronic circuit configuration and the air jet weft supply method according to the configuration of the parallax type weft supply control device according to the present invention was performed as follows. Referring to FIG.

초가 되게 하고 전체의 시차적 개방시간은

초가 되도록 하였으며, 이때 제트 에어의 압력은 2.5Kg/Cm²가 되도록 하였다.38 x 60 jacquard fabrics per inch of weft density were fabricated using polyester multifilament yarn of 100 denier fineness as warp yarn and polyester multifilament yarn of 75 fine denier as weft yarn, in which case each solenoid air valve Opening time of

Seconds and the overall parallax opening time

Seconds, the pressure of the jet air was 2.5Kg / Cm².

The opening interval (disparity) of the solenoid air valves RLS _{1 to} RLS ₅ is adjusted according to the capacities of the first capacitor C ₁ and the first variable resistor VR ₁ . At the start, the + signal causes the IC CD 4017 to input the oscillation frequency by the time constant of the first capacitor C ₁ and the first variable resistor VR ₁ (herein, the IC CD 4017 is known). Is an integrated circuit for generating a parallax output, that is, a circuit for outputting the output terminals 1,2,3,4,5 in the CD 4016 sequentially). The positive output is generated by the time difference adjusted in the output 1-5 terminal of the 4017 IC. The + signal is input to the input terminals (S _1- S ₄ ) of the IC CD 4043, and when the + signal is applied to the bar (S ₁ ), the first output terminal (Q ₁ ) becomes +, and at that moment, the second capacitor (C) ₂ ), after a delay by the time constant of the second variable resistor VR ₂ (that is, after a delayed adjusted individual opening time), a + signal is applied to the reset R ₁ and at the same time, the output terminal Q ₁ of the IC CD4043 is applied. ) Is ＂-＂ (where ＂IC CD 4043 의 is a known IC electronic circuit, which is an integrated circuit for FLIP-FLOR by set-reset). When the first output terminal Q ₁ becomes positive, the first solenoid air valve RLS ₁ is opened. When the first output terminal Q ₁ is V- ＂, the first solenoid air valve RLS ₁ is closed.

The solenoid air valve in the same way (RLS ₁ -RLS ₄₎ is open to the parallax is adjusted each time opening can be, for example, as a fourth help to adjust the RLS ₁ and ₂ adjust the VR (RLS ₂ → VR _3, RLS ₃ → VR ₄ ) However, the parallax opening method of the fifth solenoid air valve (RLS ₅ ) is the same as that of the 1-4 solenoid air valves (RLS _1- RLS ₄ ), but the closing after the individual opening of the RLS ₅ is stopped. The input terminal is closed by applying a + voltage.

And the interrelationship and purpose of the parallax opening time (VR ₁ ) and the individual opening time (VR ₂ ~ VR ₅ ) is as follows.

RLS ₁ to RLS ₅ are automatically opened sequentially at the interval (differential) as much as VR ₁ injection time by the adjusted VR ₁ (injection of constant air pressure from the nozzle, the injection time is adjusted according to the characteristics of the weft thread). there is, the flow of air to be injected in these methods is extremely doemeuro momentary contact-breaker (斷續), the VR ₂ by 4 steps than the time to help a total injection time of ₁ RLS that VR ₁ of RLS ₂ opened in order to prevent this There is a necessity of overlapping, and the injection time of these VR ₂ ~ VR ₅ can also adjust the individual opening time according to the characteristics of the weft, so that it can maintain a constant tension in accordance with a wide range of weft characteristics. In addition, the RLS ₅ is continuously opened to maintain the tension of the weft until the stop signal is stopped by the ENA.

내지 1초의 범위내에서 임의 조정하게 하여 근접스위치에 의한 스타트(START)검출 신호만으로 이미 조정된 시간에 의하여 시차적으로 순차 개방시키므로서 직기 모터의 슬로우 스타트 동안은 물론 그후의 회전 속도의 변화에도 위사가 위입 도중에 얽히는 현상을 일으키지 않고 효과적으로 목직지점에 도달될 수 있게 위입시킬수 있도록 할 수가 있음을 확인할 수 있었다.As described above, in the present invention, the individual opening time of each solenoid air valve (RLS ₁ -RLS ₅ ) and the total parallax opening time are

By arbitrarily adjusting within the range of 1 to 1 second, the sequential opening is performed sequentially by the time already adjusted only by the START detection signal by the proximity switch, so that the rotation speed of the loom motor is not only changed during the slow start of the loom motor but also after that. It can be confirmed that it is possible to infiltrate so that it can effectively reach the neck point without causing entanglement during infiltration.

In the present invention, the individual opening time (VR ₂ -VR ₅ ) of each valve can be fixed and only the parallax opening interval (VR ₁ ) can be adjusted, and the individual opening time can be adjusted only while the parallax opening interval is fixed.

In Figure 3, the unexplained code ENA stands for ENABLE and CLK stands for clock input.The CLK is opened when the + signal is applied to the ENA, and the CLK is closed when ＂-＂ is applied to the ENA. do.

That is, the frequency oscillated by VR ₁ is supplied to the CLK terminal of the CD4017 by the START signal. As a result, the output terminals 1 to 5 of the CD4017 open sequentially (the main nozzle and the last output terminal 5 of the CDE4017 are connected to the ENA terminal of the CD4017, and the last output terminal 5 continuously opens the last sub-nozzle by the ENA. The time point is terminated by the R (Ret) signal of the CD4017 by the STOP signal, and a stroke is made.

Thus, the detection signal of the start and stop of one stroke is determined by the proximity switch. The function and the installation position of the proximity switch are as follows. The projection 18 fixed to the rotation shaft 17 rotates according to one rotation of the rotation shaft 17, that is, one row, and the projection 18 is provided by providing a proximity switch at a position to be start and stop. At the time corresponding to the proximity switch, it is caused by the proximity of the protrusion 18 metal to the coil inside the proximity switch, thereby starting each rotation (stroke) irrespective of changes in the rotational speed, that is, the starting speed and the constant speed. It detects the START and STOP signals, and it is possible to supply the weaving machine only by the jet control to the loom weaving machine, regardless of the starting speed or the starting speed of the loom due to the already set time difference and individual opening. It is possible to easily air jet weaving machine equipped with a dobby machine.

Claims (1)

In the looms equipped with a jacquard machine or a dobby machine, instead of a shuttle entrainer, an entrainer by a differential air jet using a solenoid air valve drive controller independent of the change of rotational speed using an electronic circuit is installed. Weft supply control device for an air jet loom.

Images