KR860001416B1 - Weft length measuring apparatus in the loom - Google Patents

Abstract

At least two weft length measuring elements have respective weft sources, and provide weft winding surfaces with which weft control latches act for controlling wind-on and wind-off of weft length. Each measuring element has its own drive motor, and motor speeds are under control of a motor control unit(C1). The operation of the latches is under control of a weft latch control unit(C2) storing a preset weft selection program.

Description

Weft measuring device in loom

Figure 1 is a plan view of a drug showing one embodiment embodying the present invention.

2 is a graph showing the operation of the motor and the weft yarn according to the weft selection program.

* Explanation of symbols for main parts of the drawings

1A, 1B: Weft measuring device 2A, 2B: Weft supply part

5, 12: motor 13, 15, 17, 18: electronic solenoid

14, 16, 19, 20: weft delay 22, 23: main nozzle

C1, C2: Control Unit Y1, Y: Weft

This weaving side is a weft measuring device in a loom configured to wind the weft supplied from the weft supplying part and at the same time wound up the stored weft and take out this wound-weaving weft when entering. It is about.

In general, weaving looms, in particular, the fluid injection type loom is provided with a weft measuring device for measuring the weft of one inlet length in advance, and at the same time to store the wefts.

As a weft measuring device of this type, a weft measuring device has been proposed which winds up the weft supplied from the weft supplying part and simultaneously winds up the stored weft and draws out the wound storage weft when entering the weft.

The weft measuring device of this winding type is such that the weaving amount of the weft wound on the winding surface of the weft side mounting body constituted by a drop, etc., and the shift in the direction of weft drawing are controlled by at least one pair of weft gripping pins which emerge from the winding surface. Consists of.

If one type of weft yarn is supplied from only one weft feeder and the woven fabric is woven, only the aforementioned weft measuring device is sufficient. However, when wefts are supplied from two or more weft feeders, the number of weft feeders is equal to the number of weft feeders. Weft measuring instrument of

For example, when wefts are alternately supplied from two weft feeders, two weft measuring devices are used. In this case, the feed rate of each weft, that is, the weaving speed of the weft holdings of both weft measuring devices is It is half of the winding speed (hereinafter, referred to as a normal winding speed) in the case where only one measuring device is used, and the two weft yarns are measured by alternating only one feeding length during two feedings.

This weaving method is used not only for supplying two colors of weft but also for supplying the same type of weft from two weft supply parts for the uniformization of the fabric woven by one type of weft. (Supplying the same type of weft from a plurality of weft supply units is called "mixing")

The above indentation pattern can be applied even when the weft supply part is three or more.

That is, when there are three weft supplying parts, the winding speed of each weft yarn is 1/3 of the normal winding speed, and only one feeding length of the three weft yarns is measured and entered sequentially.

In the case of four weft supplying parts, the winding speed of each weft yarn is 1/4 of the normal winding speed, and the four weft yarns are each measured by placing only one feeding length during four fillings.

The same applies to the case of five or more weft feeders. However, this weaving method is effective when the wefts supplied from each weft supplying part are different and sequentially entered or when "mixing" for uniformity of the table is performed. Due to the weft, there was a defect that at least the same amount of weft measuring device must be prepared.

In order to solve this defect, in addition to the weft gage pins of the weft gage measuring device of the kind, an auxiliary gage pin for controlling the shifting of the weft gages in the inclined direction is provided on the inlet side rather than the weft gage pins. A weft measuring device which allows the retrieval to be carried out continuously is disclosed in Japanese Patent Laid-Open No. 56-59740.

In this weft measuring device, the wefts supplied from the two weft supplying parts are wound on the winding surface of each weft measuring device continuously at a constant speed.

For example, when one weft enters twice in a row and the other weft enters once, the winding speed of one weft is usually 2/3 and the winding speed of the other weft is usually 1 / 3.

In this pattern, only one third of the length of the upper mouth is wound while the one side of the weft is freed from the auxiliary locking pin, which is inserted by the weft thread, and the other side of the weft thread is pinned. If only one third of the stomach length is wound while being enclosed by the weft, one weft thread is enclosed by the weft gage pin and is only wound up by the weft gage pin.

At this time, the other weft yarn is wound only 2/3 of the gastric elongation, and at the time of the next gastric weft, the weft thread is increased by the length of the gastric elongation and is released from the weft gage pin.

Only one-third of the weft length on one side is wound, and the next up-entry length is wound by the auxiliary stopper pin, which is wound by the auxiliary stopper pin, and one third of the weft length is wound by the weft stopper pin. Therefore, it is enough to install only one auxiliary gripping pin in the weft gage device to measure one weft gage.

If the two wefts are alternately enclosed, two auxiliary gripping pins may be provided for each weft measuring device.

At this time, the twisting speed of the weft is usually 1/2. However, when the number of times of continuously enlarging the wefts supplied from one weft supply unit increases, it is necessary to install a plurality of auxiliary gimme as described above in the weft confinement device for measuring the wefts.

배분 감겨져 있지 않으면 안된다.For example, when one side of the weft is engraved four times in succession and the other side of the weft is engraved three times in succession (when the winding speed of one weft is normal 4/7, the other side of the weft is wound Speed is normal 3/7). One weft yarn is at least the length of the indentation at the time when the weft commences continuously.

It must be distributed.

배, 3회째의 위입시에

배, 그리고 4회째의 위입시에는 꼭 위입길이분이 되기 때문이다.Because the amount of weft wound around

At the time of pear, the third entering

This is because the stomach becomes the length of the stomach when the stomach enters the fourth time.

Therefore, one of the weft yarns must be wound separately by two pairs of auxiliary stop pins, respectively, at the time of successive initiation.

It is not preferable that the configuration of the weft measuring device becomes complicated that the number of the auxiliary stop pins described above must be increased as the number of times of continuously feeding in the weft supplied from one weft supplying part is increased.

However, as long as the weft thread can be wound continuously, it cannot be solved for the aforementioned defect.

The present invention has been made in consideration of the above-mentioned deficiency, and its purpose is to control the winding speed of the weft for each weft limb according to the weft selection program, and to control the amount of the weft wound and the transition to the weft direction. The present invention provides a weft measuring device in a loom which can freely perform the selection arrangement of the weft yarns simply by changing the program without changing the mechanical parts by controlling the operation of the weft catching mechanism according to the weft selection program.

Hereinafter, one embodiment in which the present invention is embodied will be described with reference to the drawings.

1A is a weft dressing device for winding the weft Y1 supplied from the weft supplying part 2A, 1B is a weft dressing device for winding the wefting Y2 supplied from the weft supplying part 2B, and both side dressing devices 1A and 1B have the same configuration. have.

Therefore, if only the above-described weft measuring device 1A is described above, the supporting body 3 installed on the fixing part such as the side frame of the weaving machine is rotatably penetrated by the rotation support shaft 4 having the weft guide hole 4a for guiding the weft yarn Y1. It is comprised so that it may be rotated by the 1st motor 5 driven by the operation command of the motor control apparatus C1 which issues a command according to a selection program.

The tooth 6 is fixed to the front surface (upper side) of the support body 3, and a support 7 fixed to the rotary support shaft 4 is provided on the front side thereof.

The supporter 7 is mounted and supported on the support shaft 7 in contact with the rotary support shaft 4 and connected to the weft guide hole 4a, and its tip is disposed on the first taper main surface 10a of the drum 10 described later.

On the front of the support 7 is a bracket 9 mounted on the rotation support shaft 4 so as to be relatively rotatable, and a tooth 9a is integrally formed on the main surface thereof, while the first taper surface 10a and the second taper are formed on the front surface thereof. The drum 10 as a weft side mounting body having a winding surface composed of the main surface 10b is fixed to be rotatable relative to the rotation support shaft 4.

In addition, the planetary gear mechanism 11 is mounted on the support 7, and the input planetary gear 11a is engaged with the tooth 6, and the output planetary gear 11b is engaged with the gear 9a.

The dimension ratio between the gear 6 and the input planetary gear 11a is set equal to the dimension ratio between the gear 9a and the output planetary gear 11b.

Therefore, when the first motor 5 is driven to rotate the rotary support shaft 4, the winding pipe 8 is integrally rotated with the support shaft 4, and the planetary gear mechanism 11 is also integrally rotated, and the positive gears 11a and 11b are geared 6, The drum 10 does not rotate and is held still without revolving around the rotational support shaft 4 while engaged with 9a.

The rotation support shaft 4 of the weft measuring device 1B is configured to rotate by a second motor 12 driven by an operation command of the motor control device C1 which issues a command according to the weft selection program.

The first weft interlock 14, which can be engaged with the first taper peripheral surface 10a by the solenoid 13, and the second weft interlock system that can be engaged with the second taper peripheral surface 10b by the electronic solenoid 15, near the drum 10 peripheral surface of the weft measuring device 1A. The retarder 16 is provided, and similarly, the first and second warp interlocks 19 and 20 which are engageable to the first tapered surface 10a and the second tapered surface 10b by the solenoids 17 and 18 are also provided on the weft measuring device 1B. .

Each of the solenoids 13, 15, 17, and 18 is configured to be operated by an operation command of the weft stop control device C2 which issues a command according to the weft selection program.

21 is a guide member for guiding the weft yarns Y1 and Y2, and 22 and 23 are main nozzles for encasing the weft yarns Y1 and Y2 separately.

According to the weft selection program, when the first motor 5 is driven and the winding tube 8 rotates around the drum 10 in the stopped state, the pseudo Y1 supplied from the weft feeder 2A through the weft guider 4a and the weaving pipe 8 is selected. According to the program, it is wound by the first weft interlock 14 engaged with the first taper main surface 10a, and wound up on the first taper primary surface 10a.

Before the weft yarn Y1 is wound on the first taper 10a, the first weft stop 14 is separated from the first taper yarn 10a and the first taper yarn 10a is wound around the weft Y1, the second taper yarn 10b. The above transition is carried out by the second weaving member 16 engaged with the second taper surface 10b.

The weft Y1 is supplied again on the second taper surface 10b while the first weft retaining member 14 is separated from the first taper surface 10a.

When the weft length Y1 is wound around the second taper surface 10b, the first weft retaining member 14 is engaged with the first taper main surface 10a and is enclosed between the first weft retaining member 14 and the second weft retaining member 16. Weft Y1 for length is stored once.

After that, when the second weft stop member 16 is separated from the second taper 10b according to the weft selection program, the weft Y1 is drawn out from the drum 10 by the fluid injected from the main nozzle 22 waiting at the inlet position according to the weft selection program. To be enthroned.

In the same way as weft yarn Y2 and weft yarn Y1, they are entered according to the weft selection program.

Next, in the embodiment configured as described above, even when the weft yarns Y1 and Y2 are alternately entered into an intrusion pattern of two, one, four, and three times (that is, the weft selection program), the description will be made with reference to FIG. Let's do it.

In the graph showing the length of weft of FIG. 2, the solid line indicates the amount of weft of the weft and the dashed line indicates the amount of measurement.

According to the operation command of the motor control device C1 which issues a command according to the weft selection program, as shown in the curve A1 of the first motor 5 in Fig. 2, the constant speed V (the speed V is the per square width and the unit time of the woven fabric). It is determined by the number of indentation times and corresponds to the normal winding speed. Also, when the weft yarn Y1 is held by the second weft retaining member 16 and the indentation length is stored on the main surface of the second taper 10a (the expected rotation angle) when the first weft stopper 14 is engaged with the first taper main surface 10a), and the second weft stopper 16 deviates from the second taper peripheral surface 10b according to the weft selection program. Then, weaving ends when the weft yarn Y1 for the uptake length stored on the two-taper surface 10b is drawn out from the drum 10 by the main nozzle 22 and the rotation angle of the base becomes θ2.

During this time, the first motor 5 is rotated at the speed V, and the weft yarn Y1 is wound on the first taper surface 10a while the weft yarn Y1 is held by the first weft catch member 14.

After the first incorporation, the second weft stop 16 is engaged with the second taper 10b, and at the same time, the first weft stop 14 is separated from the first taper 10b and wound around the first taper 10b. When Y1 is transferred to the second taper, 10b, and at the same time, the weft Y1 for the length of the indentation is wound up on the second tapered surface 10b until the second opening period.

At the same time as this winding-up weft Y1 is started, the first motor 5 is continuously decelerated (indicated by the curve A2) in accordance with the weft selection program, and stopped at the third time when the filling is completed.

During the deceleration period of the first motor 5, the second intrusion is made and the weft yarn Y1 for the indentation length used for the fourth indentation is wound on the drum 10.

In response to the operation command of the motor control device C1 which issues a command according to the intrusion selection program when the second intrusion is completed, the second motor 12 is increased from the stopped state (indicated by the curve B1) and then decelerated (indicated by the curve B2). Then, it stops at the start of the fourth intrusion.

According to the weft selection program at the start of the third intrusion, the weft length Y2 for the instep length of the second weft stopper 20 on the weft holding device 1B side is separated from the second taper peripheral face 10b and wound up in the preceding cycle of the indentation pattern. (This corresponds to the measurement curve E in the graph indicating the length of the weft yarn Y2) is drawn out from the drum 10 by the main nozzle 23, and the first weft cage member 19 is moved during the increase / deceleration period of the second motor 12. The weft yarn Y2 for the infeed length used for the eighth infeed is controlled by the weft selection program and wound on the drum 10.

During the increase / deceleration period of the second motor 12 (that is, the period from the completion of the second entrance to the start of the fourth entrance), the second weft retaining member 16 of the weft holding device 1A side is the second taper peripheral surface. The second weft retaining member 16 is disengaged from the second taper at the beginning of the fourth infiltration, and the weft yarn Y1 for the indentation length is drawn out from the drum 10 by the main nozzle 22 at the fourth initiation.

In addition, the first motor 5 stopped when the third intrusion is completed is accelerated (indicated by the curve A3) at the same time as the stop, and becomes a constant speed V at the start of the fifth intrusion.

The weft yarn Y1 of the infeed length used for the indentation of the fifth time in this subordinate period is wound on the drum 10.

In this way, the first, second motors 5, 12, the first weft stops 14, 19 and the second weft stops 16, 20 are controlled by the control devices C1, C2, so that the fifth weft or later weft can be executed according to the fifth weft selection program. Can be.

Unlike the conventional weft measuring device in which wefts are wound continuously, the present invention allows the winding speed of the wefts to be freely changed to a constant speed, deceleration, speed increase or stop state according to the weft selection program. Since the operation of the weft stop mechanism is controlled according to the selection program, it is not necessary to increase the number of weft stops even if the number of wefts fed from one weft supply unit is continuously increased.

Therefore, except for the case where the number of weft supply parts increases and decreases and the number of weft supply units increases and decreases, the selection arrangement of the weft yarns can be freely performed simply by changing the program without replacing the mechanical parts.

In addition, the present invention is not limited only to the above-described embodiment, for example, the above-mentioned weft retaining member is mounted on the inside of the drum 10 (of course, the weft retaining member is operated by an electronic solenoid), or the winding tube 8 side Rotate the drum by turning the drum 10 sides, but specify the present invention when the weft supply unit is installed more than three (and thus the weft side length storage device is also three or more), or by installing only one or three weft stoppers. Any change may be embodied without departing from the spirit of the present invention.

As described above, the present invention is to control the winding speed of the weft for each weft side support according to the weft selection program, and at the same time, the amount of the weft stop mechanism for controlling the amount of wound weft of the wound weft and the transition to the inlet direction. By controlling the operation according to the weft selection program, it has the effect that the selection arrangement of the weft yarn can be freely performed simply by changing the program without exchanging the mechanical parts, so it is an excellent invention for industrial use as the weft measuring device in the loom.

Claims (3)

Each weft side mounting body for forming a winding surface corresponding to the number of at least two excreted weft supply units is installed, and a motor for winding the weft yarn on each of the aforementioned winding surface sides is corresponding to each weft side mounting body. The rotation speed of the motor which is installed in each of the weaving yarns and installed in each of the weaving yarns and controls the weaving mechanisms for controlling the shift in the inlet direction. Weft measuring device in the loom characterized in that for installing the control device for controlling the operation of each weft stop mechanism and at the same time. The weft side mounting apparatus according to claim 1, wherein the weft side mounting body is a drum mounted on the rotation support shaft rotated by the electric motor. 3. The weft catching mechanism according to claim 2, wherein the weft catching mechanism is disposed near the winding surface of the electric drum, and is provided with a pair of electromagnetic solenoids operated by a command from the electric control device and protruded from the solenoid during operation of the solenoid. Weft measuring device in the loom characterized by consisting of a pair of weft retaining member engaged to the winding surface.

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