Weaving machine repair technology and debugging

This paper introduces a method of maintenance and fault elimination 1515,1511,GA615 shuttle loom, caused by the rolling spindle, shuttle mechanical faults such as fabric defects, defective, multi weft, weft knitting, weaving, segment, cloud edge, rotten rough, for 1511, 1515, GA615 and other types of shuttle loom maintenance (fixer) reference learning. Welcome exchange!!!

Knot (shuttle and shuttle)

I: shuttle shuttle and shuttle rolling road

(a) shuttle positioning.

1: bad shuttle.

(1) the loosening of the main bolts in the shuttle throwing mechanism.

Elimination methods: to strengthen the maintenance and overhaul of the circuit, the thickening gasket. Add spring washer lock nut etc.. (2) improper installation or abrasion of the shuttle mechanism. Elimination method: the shuttle rod should be centered in the reed seat. Worn or cracked side plates with skins must be replaced. The use of the nose of the nose. When the skin is replaced, a thin layer of grease or wax can be applied to the contact between the shuttle rod and the leather knot.

2: buffer device adverse effect.

(1) the leather ring is not caused by the bad state of the shuttle, shuttle force is caused by the shuttle and shuttle.

Elimination method:

A: the control of the skin to come and go, usually with the shuttle rod in the box on the back and forth reciprocating motion to 34.9mm-41.3mm, and at the same time adjust the buffer belt movement.

B: use the buffer can wipe the leather ring with a tarp on the surface of the leather ring in the cradle of flexible role.

C: the new skin ring when used on the machine because of the small elongation, buffer belt movement to be adjusted accordingly, to a lesser extent.

D: in high speed and wide width loom, the bolt of the fastening ring frame on the reed can be changed to metal bolt.

E: the width of the skin to be changed from 40mm to 45mm-50mm, it is necessary to reduce the elongation of the leather ring and loose ring rack.

(2) the installation specification of the three wheel buffer device is not correct. Elimination method: to make the three buffer should be in the shuttle rod back contact. The picking stick by the shuttle after the collision, can move outward, interact with the leather ring at the same time, the convex mouth and feet spring buffer disc protruding mouth distance of about 9mm-12.5mm; when the shuttle cast after the spring plate returns to its original position, two convex mouth should be gently connected, such as too tight or too loose, should be adjusted spring. The top of the side plate is about 12mm-13mm away from the eccentric disk, and the length of the buffer belt can be adjusted if the specification is out of specification. 3: two side shuttle box installation bad.

Elimination method: A: shuttle box inside a shuttle correction width 3.2mm, width 1.6mm is outside the shuttle.

B: the size of the shuttle iron convex, the inside should be lower than the shuttle box backplane 0.8mm, the outer side should be more prominent than the back of the shuttle box 3mm-4mm. The spindle and the bottom of the shuttle box are 86.5 degrees.

C: Shuttle iron spring stretch elastic, the shuttle in the shuttle box can be pushed by hand.

4: rocker, tappet shaft and a transmission roller adverse.

Elimination method:

A: to strengthen routine maintenance, to ensure the normal operation of two spindles.

B: in the installation of two transmission teeth, the tooth tip and the gap between the teeth should be 1.6mm, in order to prevent the wear of the cone. Found that the width of the tooth tip wear 2mm, should be replaced by the location of the shuttle point, the general 36 teeth, teeth can be moved three times.

5: the bad quality of the shuttle. Elimination method: shuttle loom with specifications should be strictly uniform, the Shuttle repair requirements.

II: improper opening and shuttle movement.

1: opening time changes.

Elimination method:

The opening time should be determined according to the fabric structure, fabric density and fabric width, loom and fabric appearance effect and fabric defects etc.. Under normal circumstances, the plain fabric by dense high, cloth width, speed is fast, can be appropriate to open the early time; when the fabric is low density, slow speed, can be used later or in the process of opening

2: the change of the shuttle time.

The method of the utility model is characterized in that: when the shuttle rod and the leather knot are arranged on the outer side of the shuttle box, the rotor is adjusted to be in contact with the shuttle nose, and the distance between the reed and the chest beam is measured. The allowable difference of the shuttle time is calculated according to the standard of fabric design +-3mm.

III: shuttle flight instability.

1: the edge of the installation position bad. Elimination method: the edge of the position of the correction, should be combined with the upper axis, with the interval check. The right side of the high and low position, the general plain fabric when the bending shaft in front of the heart, the edge of the gap with the shuttle plate should be 8.5mm.

2: Crane bad.

(1) hanging height or uneven. Elimination method: using single tappet poplin fabric, generally lower warp from 0.2mm. Take the shuttle plate, which is just floating in the left lower warp shuttle on; double tappet poplin fabric, lower warp leaving the shuttle plate distance, one page, two pages, third heald frame is 0.8mm. Four heald frames for 2.4mm.

(2) the installation position is not correct.

Elimination method: poplin fabric installation specifications heald shaft, single tappet, heald shaft to the rear edge of the top beam distance is 165mm; double tappet, heald shaft to the rear edge of the top beam distance is 80mm.

3: opening, sending warp, coiling part of the machine loose wear.

Elimination method: to strengthen the maintenance and replacement of the above parts, to ensure that the height of the mouth to meet the requirements. Shed height correction to bend in the heart after the front wall and the upper shuttle warp should be 3~5mm of the gap, the lower warp from the shuttle plate 0.2mm-1.0mm space walk.

4: steel reed radian is not correct.

Elimination method: reed Central than the box edge of both sides of the base plate protrude 4mm at the same time, box bottom plate and the outer end of the inner end of the width is different, installed in the sley, in the end than the outer end of the backward 1.6mm, take the shuttle plate than the box bottom plate after the convex 0.8mm, so the total curvature of reeds 4mm.

5: shuttle plate radian is too large, too small or bad state. Elimination method: edge of low 4mm take the shuttle plate in the central than the box bottom plate on both sides of the outer end of the box bottom plate, and the thickness of the outer and inner ends are also different, installed in the sley inner end of the outer end of the low 2.4mm ratio, go shuttle radian total 4mm. The shuttle plate should be re - planed, or in the reed and shuttle board between the hard paper.

6: shuttle box backplane installation bad.

Elimination method:

I: the inner side of the back board of the shuttle box is closely connected with the bottom plate of the shuttle box. The shuttle box back plate and the movable backboard should be flexible at the joint of the hinge spring. Elastic spring to moderate the back.

B: backofshuttlebox, back angle and the shuttle back angle should be consistent, with spacer correction, degree of clearance.

C: Baotou iron or Longmen file should be lower than the active backplane 0.4mm, can not be flat with each other. Have to wear, a sunken back end should be planed or installed under the plane plate, together, with small leather pad, or Baotou iron all without iron. Longmen gear with nylon products, in order to reduce wear shuttle, ensure shuttle flight stability.

7: Longmen file bending or angle is not correct, convex reed surface.

Shuttle shuttle and shuttle

(a) shuttle positioning (see shuttle shuttle and shuttle road section)

II: Standard Specification for the installation of negative automatic shuttle changing box.

1: push frame installation bad.

Elimination method:

(1) push the shuttle frame extending position when the bent axis in the heart, push the shuttle box should be raised front rail 0.8mm, push the shuttle into the rectangular frame end plane and spindle box, shuttle pushing frame and the box bottom plate height distance is 1.6mm. The general is full to change the shuttle into the shuttle box, rotating shaft bending, push the shuttle box contact shuttle, shuttle a little before and after the traverse is appropriate in the shuttle box.

(2) the safety spring shall have the appropriate strength to support the saddle screw to push the full shuttle into the shuttle box, which will not cause the safety spring rod to jump.

(3) the nozzle should be located in the center of the saddle screw or slightly below 0.4mm. In the wide loom, the mouth should be raised high.

2: shuttle in parallel.

(1) front rail mounted side.

Elimination method:

A: shuttle box set angle gauge angle correction front rail and the box bottom plate, the angle is 90 degrees.

B: front rail gauge calibration position, the distance above the box bottom plate for 47.6mm.

C: front rail spring elastic force, complete with shuttle movement, front rail can quickly fall down without rebound principle.

(2) poor front plate mounting.

Elimination method:

A: the height of the front plate should be higher than the bottom of the shuttle box 0.8mm. When the front plate is falling, it will be 20 degrees with the bottom of the shuttle box. In order to ensure that the shuttle can be changed into parallel, should be processed in lordosis board assembly before treatment, so that both sides of the central lower than 0.2mm.

B: General for a shuttle to the school board and the bracket installed lordosis front and rear position of the medial foot side of the box from the back is the shuttle 3.2mm wide, lateral foot is raised from the back spindle width is 1.6mm, about the transverse does not exceed 0.4mm.

(3) bad installation of shuttle box cover plate.

Elimination method: the installation position of the shuttle box cover plate, the current track rail foot, it is still lower than the lower 0.8mm.

3: raise the backplane installation bad.

Elimination method:

(1) fly back up and down position should be kept close. High and low position in the shuttle box low board interval to 9mm appropriate.

(2) on the fly back to lift the foot, support shuttle wire surface should be less than the box bottom plate 1.6mm, before and after the distance should be less than half the shuttle. Correction should pay attention to the shuttle wire should not loose.

(3) to track and control of wood front position, should be corrected for the width of the two shuttle (forward and backward) and 0.8mm. High and low position should be higher than the box bottom plate 13mm.

4: the improper installation of the shuttle magazine.

Elimination method:

A: Suokunei shuttle in front the front side rail should be parallel and maintain interval is 0.8mm-1.6mm.

B: the shuttle should be close to the resistance and in the Suokunei shuttle, leaving only one of the shuttle is a natural. At present, 5.5mm-6mm thick rubber is widely used in many factories instead of copper and nylon.

C: the shuttle magazine feet should be parallel with the box bottom plate, and higher than that of 1.6mm.

III: poor coordination of induction device

1: cross ingot bad condition.

Elimination method: correction time and cross spindle cross spindle hook, when bending shaft before the heart, the shuttle in the switch side weft cam cross forward, just fall into the cross hook in the ingot ingot.

2: control rod gap and control core is improper.

Elimination method: correct the gap, should be 0.8mm.

A: bad edges, edge defects, bad edges, burrs.

(1): bad edges

A: causes of formation

1: jagged edges

When the weft tension suddenly suddenly hours, easy to cause the serrated edge involute.

2: lotus leaf edge

When the yarn tension is less than the warp tension, or uneven warp tension, the selvage is not flat, there will be a lotus leaf edge.

3: edge weft shrink

Weft unwinding tension, leads to poor opening picking process time mismatch, the shuttle channel fast, or in the weft unwinding, by selvage warp yarn hairiness, the weft is not straightened, the selvage is loose, resulting in gas ring or side weft weft defects.

4: the edge through the wrong side of the yarn is not uniform or wear the wrong way to deal with long, small head, head, the lack of a complete set of operating procedures.

5: edge on both sides of all horse with regularity irregularity.

(1) the change of weft tension.

(2) warp tension.

(3): side bracing.

B: elimination method

(1) on the basis of strict control of the warp yarn tension, increase the side yarn tension and ensure the opening definition.

(2): rational allocation of opening and picking process time. The complete elimination of the shuttle channel quickly, solve the edge of weft shrinkage and bad edge defects.

(3): due to the increase of weft tension, solve the edge difference between the two sides.

(4): improved edge yarn heald operation.

The appearance of the weft shrinkage defects on the cloth surface can be roughly divided into kink weft, warp, weft shrinkage, a square shape, and dispersed weft.

I: the common causes of four types of weft shrinkage

A: causes of formation

1: the original yarn quality is bad.

2: the twist is too high.

3: low moisture regain.

4: the role of bad shuttle.

5: the bad condition of the shuttle.

6: poor definition of opening.

B: elimination method

1: improve the quality of the original yarn.

2: stable weft twist.

3: strengthen loom maintenance.

4: weftinsertion tension increasing shuttle.

II: the common causes of the four types of weft shrinkage

A: causes of formation

1: kink

(1) the weft yarn is easy to twist and bend at the shuttle side.

(2): change the shuttle state to make transverse vibration of the weft crimp kink.

(3): weft by full pipe unwinding to air traffic control, the tension by increasing, the filling cavity ring spindle throw corresponding changes in opportunity.

(4): shuttle shuttle shuttle box side, because the filling itself low moisture regain, twist instability, shuttle guide eye to a very loose selvage yarn, when the shuttle began to move, weft kinks.

2: warp has been due to the weaving weft opening process, the time of the shuttle with improper.

3: a square shape of a square shape of weft weft poplin fabric is more prominent in the. A mainly woven poplin fabric, the opening process caused by a single shedleveling tread plate when four heald frames.

4: the dispersion of the weft is mainly caused by poor hoist.

B: elimination method

1: according to the characteristics of the kink weft, weft to take wet, increase the tension, adjusting weft insertion time.

2: according to the distribution of the region has been the distribution of weft weft and the rules of the production process to adjust the opening, 1, 2 heald frame using the early opening, the 3, 4 heald frame with late openings.

3: the cylinder cloth warp weft shrinkage has been appropriate to take the following measures.

(1) requirements for the quality of raw and semi-finished products.

A: twist small original yarn as weft yarn, cotton should be smaller and less complex, less hairiness, yarn body is smooth, not easy to warp weft with Suodaonei leads to the shrinkage caused by live.

B: in order to improve the clarity of the fabric, reduce the broken ends in weaving, warp sizing rate should be higher.

(2) the weaving process parameters are selected reasonably; the cylinder cloth is woven on the loom of type 1511 or type 1515.

4: a method of eliminating the square shaped weft shrinkage can be taken from the warp and weft two aspects simultaneously.

(1): to: high density of warp and warp opening adjacent cross is separated (high density poplin fabric) opening time, from one to two times of shedleveling shedleveling. The specification of the hoist master the principle of small double opening. Thus, the mutual friction between the warp yarns can be reduced, and the opening definition can be increased.

(2): zonal: without affecting the weft, broken thin defect increased under the premise, appropriate to increase the weft tension, compressed air ring, reducing weft loop phenomenon.

(3) at the same time, in order to further improve the definition of the opening of weaving, we can also adopt measures to increase the tension of the fabric.

5: the method of eliminating and repairing the dispersed Weft Defects in the daily production of dispersive weft is basically the same as the method of solving the problem of star jump and yarn sinking. Focus on the following methods:

(1): hoist the archway as far as possible. When the loom is in normal operation, the front end of the heald frame should not touch the reed cap. Requires not to sway the heald frame.

(2) clear shuttle mouth. Crane should not be too low, in particular, the double disc opening mechanism to meet the requirements of a small double layer openings.

(3) in order to prevent the upper pressure of the reed cap, the height of the reed can be 120.7mm.

(4) the use of nylon sling belts prevents elongation.

(5): picking buffer mechanism maintenance should meet the requirements, pay attention to buffer strength and not normal shuttle rebound phenomenon.

Hop, hop, star hop

A: causes of formation

1: the original yarn and semi-finished products of poor quality.

2: Crane bad.

3: loom opening, shuttle, send part of the bad state.

4: the bad condition of the shuttle.

5: opening with the shuttle time with improper.

6: through the position line disorders.

7: weaving warp movement instability.

8: loom operation side.

9: the influence of fiber properties.

B: elimination method

1: improve the quality of raw yarn and semi-finished products.

2: improve the clarity of the shed.

3: to improve the sliding box to ensure that the slider has a suitable sliding motion.

4: high density fabric (such as poplin class) with double cam shedding mechanism.

5: reasonable choice of weaving process parameters.

Reasonable choice of weaving technology parameter refers to the opening time, the picking time quick picking force three coordinated persecution under a certain speed and breadth of fabric under the condition of the shuttle flight to clear the shed.

6: do a good job on the shaft.

7: increase the stability of warp movement.

8: focus on reducing the "three jump" to strengthen the operation of the preventive work.

(1) pay attention to the inspection of the quality of semi-finished products.

(2) check the cloth carefully.

(3) do a good job cleaning.

Edge fault

A: causes of formation

1: side supporting position is not correct.

2: stop the stopper, the mouth is not standard.

3: reed is coarse, the installation location is not positive.

4: hanging specifications bad.

5: weaving shaft amplitude and width difference is too large.

B: elimination method

1: improve the quality of semi-finished products.

2: side supporting installation to standard.

3: stop the plug, hit the mouth to install the standard installation.

4: keep the wire, reed good condition.

5: Crane should be good.

6: edge yarn wear method should meet the requirements.

Out of weft, double weft and broken weft

(I) stripping

A: causes of formation

1: weft forming bad.

2: poor weft winding.

3: poor weft state.

4: loom mechanical state is bad.

5: the specification of the weft tube is improper and the shuttle tube is bad.

B: elimination method

1: spinning forming cam reverse loading.

2: the appropriate increase of weft thread pitch.

3: improve the shape of the cam, enhance the winding effect.

4: improved spinning forming mechanism.

5: heavy coil.

6: to strengthen the management of weft doffing.

7: to strengthen the repair parts.

8: weft to wet.

9: strengthen the management of weft tube.

II: double weft and broken weft

A: causes of formation.

1: the original yarn quality is bad.

(1) poor filling.

(2) poor appearance quality.

(3) the head is out of specification.

2: loom bad state.

(1) poor induction device.

(2) bad shuttle box and side support.

(3) bad shuttle throwing mechanism

(4) the shuttle channel gap.

3: the bad.

4: shuttle tube with bad.

5: shuttle operation bad.

6: dobby device bad.

B: elimination of 1: to improve the quality of weft. 2: loom mechanical state to maintain good. 3: to improve the quality of the shuttle. 4: unified quill, shuttle shuttle, pipe specifications, strengthening supporting management.

Weft, weft dilute shuttle, including Xie rung

A: causes of formation

1: beating the weft mechanism too large gap.

2: Crane bad.

3: induction device failure.

4: send and take out bad mechanism.

5: loommounting, bad operation.

B: elimination method

1: beating up the various parts of the gap should meet the requirements.

2: keep the crane is good, meet the requirements.

3: induction device specification is correct, the effect is good, and the implementation of spare parts rotation.

4: send warp, coiling institutions in good condition.

5: to improve the operation level of the upper shaft.

6: technical improvement.

(1) to promote the broken weft anti dilution device (i.e., point by point weft stop device), and to reduce the defects of thin weft.

(2) using SJ - P type self adjustable warp feeding device, reduce set marks.

(3) the loom drive control device (positioning switch device).

(4) using NT3 - 901 type hair roller pressure device.

(5) to promote the protection of iron in reed cap and reed cap.

(6) select the full grip of the reed shaft.

(7) the installation of mechanical and electrical hybrid loom driving device.

Weaving and weaving

A: causes of formation

1: send the role of bad institutions.

2: tension adjustment mechanism is not flexible installation.

3: sent by the agency defects.

4: coiling mechanism bad.

B: elimination method

1: make the sending mechanism in normal condition.

(1) the transmission gear shall be accompanied by rotation.

(2) suitable for worm gear and worm gearing.

(3) the rise and fall of the tension bar.

(4) friction saw gear brake.

2: the use of lateral send device.

3: take-up mechanism in normal condition.

(1) supporting the rotation of the roller.

(2) choose different types of barbed iron sheet.

(3) the take-up gear is in good condition.

4: do a good job of weft yarn to wet work.

5: to strengthen the operation of the shaft and heald frame management.

Square eye phenomenon

Plain woven fabric surface presents a network pinhole phenomenon known as square eye.

A: causes of formation

1: the position is too low.

After the opening, the tension difference between the upper and the lower layers of the warp yarn is too small, and when the weft yarn is contracted, the warp yarn is not easy to move transversely with the weft yarn, so the space of the reed teeth after the beating can not be compensated.

2: the left level difference on both sides of the warp, the tension side of the cloth full affected, resulting in a square hole.

3: menopause frame too close to the mouth. The tension of the shuttle mouth is increased, and the warp yarn is not easy to move and generate the square eye.

4: hanging too high or too low side brace. These two conditions will reduce the difference between the upper and lower warp tension. The cloth surface is easy to produce full width and side square.

5: heald heddle warp in tight, causing difficulties in moving the heddle eye beating, beating beating area increases when the warp tension is not compensation, the warp evenness is destroyed, and the surface of the fabric is thin thin not plump phenomenon, serious side eye formation.

6: heald wire bent stem, resulting in the eye is not on the same horizontal line, part of the bulge will also have a square wire.

7: heald frame at the lower end of the clamp damage or loss, so that the lower warp away from the shuttle plate.

8: warp tension is too large, is equivalent to reduce the upper and lower two layers of warp tension difference.

9: the start of the combination of the brake disc is not close contact with each other, in the weaving gap clearance, in particular, when the resistance of the beating, the increase in the slip, weakening the beating force, so that the cloth to produce square eye.

10: improper opening time. When the opening time is early, the weft angle of the warp yarn on the weft yarn is relatively large, and the weft yarn is not easy to back and back after the beating. The opening time is too late, the warp tension is small, and the tension is small at the time of beating up. If the warp is too loose, the cloth will be uneven. In addition, due to the late opening, the upper and lower two layers of warp tension difference is small, the upper layer of the warp yarn is not easy to move sideways, so there will be square eye.

11: stop the contact position of the handle is not standard, the reed hook shaft failure or loose, so that the steel reed beating by the reaction force of the cloth after the occurrence of the weft yarn can not reach the specified position, resulting in square eye.

B: elimination method

1: in order to eliminate the side eye, the cloth is full and smooth, generally plain fabric back than the chest high beam 19mm-20mm. Heald eye is lower than the average level of 12.7mm, the front of the frame from the chest wall to 210mm is appropriate.

2: hanging heald shoulds not be too tight. The upper and lower layers of the hanging warp are close to the shuttle board. The position of the side strut is lower than that of the chest beam 6.35mm is advisable.

3: reed plate thickness be thinning, or a reed four root to wear two for a reed, square can be improved.

4: good for the body, to ensure adequate and uniform beating force to eliminate the square eye.

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