GL-20U53ZIGZAGSEWINGMACHINE曲折缝缝纫机港隆缝纫机使用说明书&零件样本Operation Instruction&PartsBook

为了安全地使用，请您在使用之前阅读本使用说明书。另外，请您注意保管本使用说明书，以便随时查阅；零件更改设计时，恕不另行通知。

Readsafety instructionscarefullyandunderstandthembeforeusing.RetainthisOperation Instructionfor futurereference.Excusefornotnoticementinadvancewhilethedesignofthespareparthastobechanged.

目录

一、机器简介

二、技术规格及用途

三、机器安装和操作准备

1、机器安装
(1)油盘安装
(2）机头安装
(3)膝控部件的安装
(4)电动机安装

2、操作准备

(1)指擦机器 (2)检查 (3)润滑 (4)试车

四、机器的操作

1、缝线的选择
2、机针缝线和缝料的配合
3、机针安装
4、绕梭心线
5、穿面线和引底线
6、装梭心
7、装卸梭心套
8、直针距及倒顺送料的调节
9、压脚压力的调节
10、针位的选择
11、横针距的调节
12、直缝锁紧装置

五、缝线的张力

1、底线张力的调节
2、面线张力的调节

六、机器的定位与调整

1、中针位横针针迹对称位置的调节
2、旋梭定位
3、针杆高度
4、旋梭的装卸

七、一般故障及其处理方法

八、几种缝纫方法和附件的使用

1、直缝
2、刺绣
3、拉链缝
4、卷边缝
5、包梗缝
6、装饰缝
7、其它一些实用缝法

九、零件样本

CONTENTS I.Brief Introduction of the Machine II.Main Technical Specificationsand Application III. Installationand preparation foroperation 1. Installation (1) Fixing of oil Disk (2) Installation of Maching Head (3) Installation of Knee-Control Componet (4) Installation of Motor 2.Preparation for Operation (1) Cleaning the Machine (2) Inspection (3) Lubrication (4) Test Run IV.How to Operate 1.Selection of thread 2.Coordination of Needles,Thread and Material 3.Assemblage of Needle 4.Winding Thread around the Bobbin 5.Threading needle& Bobbin thread 6.Mounting of Bobbin 7.Mounting and Dismounting of the bobbin case 8.Adjustmentofneedle distance and material-feeding 9.Adjustment of pressure of presser Foot 10.Selection of needle position 11.Adjustment of horizontal needle distance 12.Linear Stitching Locking unit V.Tension of Thread 1.Adjustment of Bobbin thread Tension 2.Adjustment of needle thread Tension VI.Locationand Regulation of the Machine 1.Regulation of Symmetrical Positionsof Horizontal 2.Location of Rotating hook 3.Hejght of Needle bar 4.Mountingand Dismounting of Rotating shuttle VII.FaultsLocating& How to Treat VIl. Modes of Sewingand Application of Accessories 1.Linear Sewing 2.Embroidery 3.Zippered Sewing 4.Hem-Wrapping mode 5.Stem-wrapping mode 6.Decoration Sewing 7. Other modes of practical Sewing IX.Examples of Components

一、机器简介

曲线缝缝纫机系列产品是多品种锁式曲形线迹工业用刺绣机器。

本系列机种用于绣品、服装、巾被、鞋帽、手套、皮件、箱包等行业，被广泛应用于薄、中厚料上作直形、曲形缝纫。

本机结构采用连杆挑线，旋梭匀线，针杆摆动，差动齿轮勾线，倒顺针机构，并设有膝提机构。具有运转平衡、操作灵活、缝修方便、线迹美观整齐等特点。

I.BRIEFINTRODUCTIONOFTHEMACHINE

Seriesproducts of Curved-stitching Sewing machine are multi-purposed,locked-type and crrved stitching mechanism for industrial embroidery.

Thisseries of machines can be used in the trades of embroidery,garment,beddings, shoesand hats,glovesand leatherpiecesandsuitcasesand handbags.Itcanalsobeextensivelyappliedtothematerialwiththinormediumthicknessforlinearandcurvilinear sewing.

The machine is designed asa structure which can be expected to stitch-upof prick with connecting- levers,to crochet with shuttles or diffrential gears,and provided with swaying needle- staff,clockwise can counter-clockwise units and kneeing device.The ma-chine features insmooth running,flexibleoperation,convenient maintenanceas wellas neatand beautiful stitches.

二、技术规格及用途

II.MainTechnical SpecificationsandApplication

三、机器安装和操作准备

1、机器安装(1)油盘安装

见图一，用四只圆钉2将油盘1固定在台板框孔内，并确保油盘至台板面距离为25毫米，油盘右边缘与台板右框边平齐。

图一Figurel 1

(2)机头安装：（见图二）

机头在安装时，首先将机头连续勾座1和机头座垫2用铁钉固定在相应位置，安装四只橡皮座垫3时，一定要使铁钉全部埋入橡皮圈内。然后将机头装上连接勾放在台板上，并注意转动要灵活，四角要平稳。

(3)膝控部件的安装：

按图三进行安装，并注意转动要灵活。

① 膝碰块1的位置根据操作者的情况进行调节，以保证操作位置。

② 调节件2的位置，当件2控制件3运动时，则膝部可以来控制机针的摆动；当件2控制件4时，则膝部可以控制压脚的提升。

图三Figurel 3

（4）电动机安装：（见图四）

① 将电机1左右移动，使缝纫机主动轮件3与电动机皮带轮件2的位置调整成一直线即可。

② 缝纫机运转方向，从机头主动轮上侧看，应是逆时针方向。电动机的转向应一致。电动机转向可用电动机上的电源插头换转1 8 0 ^ { \circ } 调整转向。

{ 3 } O型皮带4的张力调整，旋松螺母5，转动电动机调节皮带张力。皮带张力的大小可用手指将皮带按下，使皮带如图示弯曲成12-20毫米程度即可。

图二Figurel2

图四Figurel4

2、操作准备

(1）揩擦机器：机头装箱前为了防止机件生锈，各部分均

涂有除锈油脂，同时机头装箱后，还可能在贮藏和长途运输阶段造成油脂硬化和积聚在机器表面的灰尘，所以必须将表面的油脂和灰尘用汽油和洁净的软布揩擦干净。

(2)检查：

机器出厂后，在长途运输中有可能受到强烈的振动而使机件松动或变形，所以在清洗油污以后，应该作一次周密的检查，并用手转动主动轮，看机件之间有无转动困难，碰撞现象或其它不均匀的阻力，不正常的声响，如有应作适当的调整，调至机器运转正常后才可正式试车。

(3)润滑：

机器运转之前，用软布揩擦干净之后，对所有运转和滑动部份和图五中的加油点都应充

分加油。

如果机器是连续使用的，应该每天加油数次。

必须使用2号缝纫机白油或HJ-7机械油。

(4)试车：

新机器第一次使用和长期搁置未用重新使用时，应先进行空载运转。此时特别注意：上轮转向应是逆时针（从上轮的外侧面来看），并将压脚提升，开始时应低速运转，如运转正常，则逐步提高到2000转/分。数分钟后再检查各部分零件磨损情况，直至机器情况正常时才正式使用。

III. INSTALLATIONANDPREPARATIONFOROPERATION

1.Installation

(1)Fixing of oil Disk

Fixthe oil disk (1)with4 pins (2)onto the frame openings of the plate.Makesure the distance between theoil diskand the platesurface isequal to 2 5mm Theright sideof the oil disk should be kept in line with the right frame of the plate(see Figure 1).

(2) Installation of machine Head(see Figure2)

In Installation,the base of connecting hook (1)and thepad (2) shouldbe firstly fastened firmly ataproper place with the metal nailswhen the4rubberpads (3)are being fixed.Makesure the metal nails should be embeded entirely into the rubber washer.Then the machine head can be installed on the plate with connecting hooks.Attention should beattached to flexible movement and the4anglesbeing flatand stable.

(3) Installationof knee-control component

The instalation of this component should be conducted according to the Fiqure 3,and much importancebeattachedto the flexibilityof operation.

① The location of the knee-control block1ought to be adjusted in accordance with the operator'sworking condition to eusure convenienceinoperation.

② How to locate the adjuster 2:When adjuster2 is aimed to control the movement of part 3 the knee component can be used to control the swaying of the needle.When the adjuster2 is aimed to controlthe movement of part 4,the knee component can be used to control the upraising of presser foot.

(4) Installation of motor(see Figure4)

①Turnthemotor 1 from side to side ina bid to ensure the driving wheel of the sewing machine3 being in line with the pulley of the motor 2.

② Howto regulate the running direction:Viewed from the outside of the driviing wheel,the running direction should becounter-Clockwise.Make sure that the turning of the motor should be inuniformand regular directionwhich canbe regulated by the power plugon themotorwith change of 1 8 0 ^ { \circ } ，

③ Howto regulate the tension of O-shaped Belt4.

Release the Nut5,and turn themotorso theat theBelt tensioncanberegulated.If press down the belt with your fingersand bend itover to12-20 mm asshown in Figure4,the tension isconsidered sa ideal one.

2.Preparation forOperation （1）Cleaningthemachine

Before shipping,everypartof the machine head is intended to becoated withantirust grease ina bidto preventthe components from being rusted.Aftershipping,theapplied grease mightbe hardened during the long-distance transportation or in storage,and particlesand dust accumulated on the surface of the machine.And thusallthe hardened grease，particlesand dust should be wiped cleanwith gesolineand softcloth.

(2) Installation

After leaving factory，themachine ispossibly subjectto violent vibration during thelong distance transportation so that the components could be loosened ordeformed.Acloseand comprehensive inspection is needed whenalltheoily stain has been wiped clean.Turn the driving wheel manuall tosee if there isany dificulty in truningof the components,any bumporobstruction,orany abnormal sounds.Ifany,the affacted components should beadjusted until the machine is capable of running regularly.

(3) Lubrication

Atfer the machine being wiped clean with soft cloth but before operating,all,the turning and movable partsand the oil holes in Fiqure 5should be fully lubricated.

When the machine is needed to run continuously， lubrication should be made several time each day.

No2white lubricant of HJ-7mechanical oil is preferentiallyused

(4) Test run

Whena newmachine isoperated at the first time ora machine is newly usedaftera long time of layingoff,the machine should be made idle-running,What is more important at the moment is that the running direction of upper wheel should be counter-clockwise (viewed from the outsideof the upper wheel)and the presser foot raised.At the beginning,the running should beat lowspeed,and couldbe gradually increaded to 2 0 0 0 r / { m } when it comes to normal state.A few

图五Figure5

Minutes later,itisnecessary to reexamineanysign of wearand tearabout thecomponentsuntil the machine can be operated normally.

四、机器的操作

1、缝线的选择

面线应采用左旋线。底线则左、右旋线均可使用。

缝线旋向的鉴别，可按图六所示把缝线握住，以右手按图箭头方向搓转缝线。若线股越搓越紧，则是左旋线。反之即为右旋线。

图六Figure6

2、机针、缝线和缝料的配合

请使用 D P x 5 机针，机针号数根据使用的缝料、缝线参考下表进行选择。

参考上表按所缝布料选择合适的机针。
\*如使用特殊缝线如金银丝，请使用大号的机针（14#-16#）以缝出满意的针迹。

\*if specific thread (gold-or-silver thread) isused,large-siae needles(14#-16#)are needed forsatisfyingstitches.

3、机针安装

图七Figure7

见图七，机针安装时一定要使针孔及机针长槽面向操作者，机针尾部一定要插到孔底，然后拧紧支头螺钉。

4、绕梭心线：(见图八)

(1)左手抓住上轮，右手将离合螺钉A朝自己方向转动，松开；(2)将梭心置于绕线器芯轴B，尽可能地按下；(3)如图，将线通过上过线板二孔C1、C2和夹线板D，然后把线头在梭心上绕上几圈，将线量调节压板E压向梭芯，开机；

（4）梭心线绕满后会自动止绕线。

调节梭心绕线量，可用螺丝刀固定线量调节轴G，松开螺钉F，转动压板E，可调整梭心的绕线量。把压板E调离自己方向，可多绕线；反之则少绕线。一般调整到绕线量小于梭心外径 . 0 . 5 ~ 1 \mathsf {mm } ，再紧固螺钉F。

梭心线应排列整齐而紧密。如松浮不紧，可旋转夹线螺母调节夹线板的压力；如排列不齐，可松开螺钉H，上下调节上过线板组件一，使之排列整齐后再紧固螺钉H。

5、穿面线和引底线

穿面线时针杆应在最高位置，然后从线架上引出线头，曲折缝按图九a所示将线头依次穿过1-11，最后穿过机针孔12，并引出100毫米左右的线备用。双针曲折缝按图九b穿面线。

引底线时，先将面线线头捏住转动主动轮，使针杆向下运动，再回升到最高位置，然后拉起捏住的面线线头，底线即被牵引上来最后把底、面二根线头一起置于压脚下前方。

6、装梭心(见图十)

(1)梭心装入梭心套，将线从长槽 ① 及压线簧②下拉出。(2)将线拉出压线簧末端的孔 ③ 。(3)把线穿过过线孔 ④ 留出60毫米长的线头。注意：牵拉线5时，梭心顺时针方向转动是正确的；若是逆时针方向转动，应把梭心翻个面重装。

7、装卸梭心套(见图十一)

装梭心套的时候，机针应该在最高位置。先拉开梭门盖1之后把梭心套3照图十一所示放入旋梭2中。放入时请注意梭心套与旋梭心轴上的定位槽相扣合。

卸梭心套时，必须将梭门盖向上板开并且扳足，之后捏着扳开的梭门盖徐徐地取下梭心套，如此才能使梭心套钩住梭心，不让梭心脱落。

图八Figure8

图九Figure9

澳 1

图十Figure10<br>图十一Figure11

8、直针距及倒顺送料的调节(见图十二)

直针距的调节：

(1)按顺时针方向旋转针距旋钮B，可使直针距变小。(2)按逆时针方向旋转针距旋钮B，可使直针距变大。针距旋钮B上的刻度只是参考值，并非精确值。倒顺送料的调节：(1)当倒顺把手A处于自由状态时，机器处于顺进料状态。(2)当按下倒顺把手A到最低位置时，机器处于倒送状态。

图十二Figure12<br>图十四Figure14

9、压脚压力的调节：

压脚的压力，在保证顺利送料的前提下压力越小越好。一般厚料压力要大，薄料压力要小些。如图十三，顺时针旋转调压螺母，压力增大；逆时针旋转调压螺母，压力减小。

图十三Figure13

10、针位的选择：

左、中、右针位对直缝与曲折缝都适用。

机针位于中间位置适合于一般缝纫，只有在缝纫位置有特殊要求时，才能将机针置于左或右针位。

如图十二，只要将左、中、右手柄C移到预想的位置，就会缝出相应的针迹，如图十四。

左 中 右Left Center RightL 1 1U 1 WWWW上美 集 M

11、横针距的调节(见图十二)

(1)当需采用曲形线迹0\~12mm之间任一固定值时，可按如下调节：

a、松开横针定位螺钉D、E；
b、顺时针转动横针板手F至所需的位置；
c、锁紧横针定位螺钉D、E即可。

(2)当需采用曲形线迹0-12mm之间任何一固定区间的变动进行缝纫时，例固定区间为2\~8mm，可按如下调节：

a、松开横针定位螺钉D(控制窄曲形）、F(控制宽曲形)；b、把横针板手调至2mm位置，锁紧螺钉D;c、把横针板手调至8mm位置，锁紧螺钉E。

这样横针距就可在指定的窄曲形2mm至宽曲形8mm之间任意变动。

12、直缝锁紧装置：(见图十五)

当横针距调节至0进行直缝时，顺时针旋转直缝锁紧偏心套A，锁紧针杆摆动架，则直缝效果会更佳。当进行曲折缝纫时，则要逆时针旋转偏心套A，使之锁紧在机壳上，松开针杆摆动架。

图十五Figure15

IV.HOWTOOPERATE

1.Selectionofstitches

Left-handed rotationstitchescanonlybeappliedto thesurface,whileeither left-handedor right-handedrotationstitchescanbeappiledtothebootom.

Therotational directionof stitchescanbe identifiedaccording tothe indicationshown inFigure 6.Hold the stitchwithboth handsand then twist itbytheright hand and in the directionas the arrowshows.If themoreittwists,the tighterit becomes,undoubtedlyitshouldbe left-handed rotationstitch.Otherwise itisright-handed one.

2.CoordinationofNeedle.Threadandmaterial

DPX5needle ischosen inprefrerence.Thenumberof needlecanbeselected in linewith hematerialandthreadused.(SeethefollowingTable)

Decentneedlescanbeselected inaccordancewith thematerial listed in theaboveTable.

3.AssemblageofNeedle(seeFigure 7)

Whenassembling，makesure that theneedle holeand its long slot shouldface theoperator viththerearpartofneedleinserteddeepintotheholebottom,Thentightenfirmlythesetscrew.

4.Windingthreadaround theshuttlecore(seeFigure8)

(1)Get the shuttle core onto theaxisof thewinderB,and clamp it downto the full;

(2)ShownastheFigure,Letthe threadrunthrough thetwo holesC1,C2onthe upper thread-runningplateandthe thread-holdingplateD；thentheendofthe thread ismade togo aroundtheshuttlecore for several circles.In thecase the thread-volume-adjustingplateEis clamped toward the shutte core,operate themachine immediately;

(3)If thefullthreadaround theshuttecore isfound,itcanbeexpected tostopwindingautomatically.

Toregulate thewindingvolumeof theshuttlecore,ascrewdrivercanbeused tosecure the volume-regulatingshaftG，and then loosen thescrewFand turnthepressingplateE,Ifmore windingvolumeisneeded，thepressingplateismade togoagainsttheoperatorandviceversa. Ingeneral,thevolumecanbesetto lessthan0.5\~1mmof theexternaldiameterof theshuttle core,then secure the screwF.

The thread around the shuttecore shouldbearranged neatand compact,If too Looseorrelax,thepressureof thread-holding plateshouldbestrengthenedbyturning thenut;Ifbeing inunevenarrangement,release the set screw H,andadjust the compenent of theupper threadrunningplate1until the threadarrangement issatisfactory,and thenfix it.

5.ThreadingsurfaceandBottomstitches

Whenthreading the surface stitches,the needle staff should beat the topposition.Theend is ledfrom the t6hreadrack,curved stitchingsaremadetorun through1-13asshown inFigure9a and then throungh theneedle hole 12,meanwhilea length of 10ommshould be drawnout for spare

Thread.The threading surface stitches of double curvea stitches should be madeas shown in Figure9b.

When threading the bottom stitches,firstly hold the end of surface stitch,then turn the driving wheel to make the needlestaff rundownwardand immediately back to the topposition.Pullup theendofsurfacestitch,resulting indrawingthebottomstitchupward.Finalybothendsof the surface stitch and the bottomstitchare set to the front of presser foot altogether.

6.Mounting of shuttle core (see Fingure 10)

(1) Mount the shutle core onto the caseand pullout the thread from the long slot ① and
thread-pressingspring ② (2)Pull the thread out of the end-hole3of the thread pressing spring; (3)Runthe thread through the thread-conveying hole4and leaveaside theendabout60mm. Note:Whendrawing the threadend,it'snormal for theshutllecore toturnclockwise;If not in
thiscase (or counter clockwise) the shutte core should be remounted after turning over its side.

7.Mounting and Dismounting of the case (of the shutle core) (see Figure 11)

Whenmounting the case,the needle should beat the topposition.Pullapart the front cover 1 oftheshutteand set thecase 3intotherotationshuttleaccording to theindication shownin Figure11,but it should benoted that thecaseand the locatinggroove of theshuttleshaft could beengaged ina goodstate.

Whendismounting,pull thecover outward till to the full stop,then itfirmlyand gradually take down the case so that the case could be expected to hook up the core which wont be disengaged.

8.Adjustment ofmaterial-feeding

Adjustment of vertical needle distance (see Figure12)

(1)The vertical needle distance can bereduced by turning the knob B clockwise.
(2)Thedistancecanbe increasedbyturningtheknobBcounter-clockwise.
The scale on the knobBis designed only for reference,which is notanexact value.

Adjustrmentofmaterial-feeding

(1)When the handleAis found ina free state,the material-feedingcan beconsidered ina direct motion. (2) But when the HandleAis pressed down to the lowest position,the material-feeding can beconsidered inreversemotion.

9.Adjustment of the pressure of presser foot

Onthe condition thatthematerial-feedingcan beconducted directlyand regularly,the pressureof thepresser footshouldbeamoderateonefather thanabigone.Ingeneral,thepressure should be increasedonsewing the thickmaterial.Ifonsewing the thinmaterial,thepressurereduced.Shownas the Figure13,turn thenut foradjustingpressure clockwiseand the pressure tends to go up,while turn the nut counter-clockwise,and the pressure down.

10.Selection of needle position

Thethree positions,left，central and right,are suitable for both the linear stitching and the curvilinear one.

Thecentral position can be expected tosuit for conventional sewing.Only whena particular sewing isneeded,cantheneedle besetto the left or right position. Seenin the Figure12,if thesingle-sided curved handleCissetto thepredictedposition,the proper stitchings can be effected (also see Figure 14)

11.Adjustment of horizontal needle distance (see Figure 12) (1) If any one fixedvaluebetween 0 ~ 1 2 \mathsf {mm } of curvilinear stitchings is needed,theadjustnencanbemadeas follows; a.Release the horlzontal needle set screws D,E; b.Turn the spannerFclockwise toa positionneeded; c.Lock the screws D,E; (2)On sewingwhena variation ofany one fixedarea between 0 ~ 1 2 \mathsf {mm } of curvilinear stitchingsisneeded (Forexample 2 ~ 8 \mathsf {mm } ),theadjustmentcarbemadeas follows: a.Loosen the set screw D (for control of the narrow curvilinearone)andF(for control of the wide curvilinear one);

b.Setthespannertothepositionof2mmand lockthescrewE.

Inthis way,the horiaontal needle distance can be changed from2mm (the narrow one )and 8mm (thewideone) randomly.

12.Lockingunit forlinearstictching(seeFigure15)

Whenthe horizontal needle distance is setto position for Linear stitching,turn the linearand Lockingeccentric sleeveAclockwise,secure theneedle-barswayingrackand then theeffect of thelinear stitching willbe better When the curvilinear stitchingsare made,the eccentric sieeveA shouldbe turned couter-clockwiseand locked securely onto the machine housing,then release theswayingrackoftheneedlebar.

五、缝线的张力

调整面线张力与底线张力到最佳位置，如图十六，使面线与底线锁在两层缝料的中间而上、下线迹不能太松太紧，缝料不能起。

图十六Figure16

1、底线张力的调节

如图十七，旋动底线张力螺钉1调节底线张力。手持线头，悬起梭心套，梭心套能以自身重量从线上徐徐滑下。此时度线张力为适宜。

图十七Figure17

2、面线张力的调节(见图十八)

放下压脚，旋动画线张力螺母2调节面线张力，或旋松夹线器紧定螺钉，旋动螺钉3来调节挑线簧4的位置来调节面线张力。使缝纫的线迹达到理想的线迹。

图十八Figure18

V.TENSIONOFSTITCHES

Adjust the tension of surface stitches and of the bottom stitches to the best extent (see Figure16)so theatthe coil ofsurface stitchesand of the bottom stitches couldbe locked between thetwolayers of material,andallthe stitchingsshould not be too tight nor too loosewith the materialtobesewnuncreased.

1.Adjustment of Bottom stitch Tension

In the lightof indication shown in Figure 17,turn the screw1 foradjusting the tension of bottomstitches.Hold the end in your hand and suspend the case of shutte core upward.Then the case willslide down on its own weight,which shows that the tension of bottom stitches has reachedthebestextent.

2.Adjustmentofthe surface stitch Tension

In thelight of indication shown inFigure18,turn the nuts foradjusting the tensionof the surface stitches.Alternatively,release theset screw2on the thread-holder,then turnscrew3foradjusting the positon of stitch spring 4,aiming at regulating the tension of surface stitches.As a result,the width of bottom stitches could be maintained perfect.

六、机器的定位与调整

1、机针左右对称高度的调节

如图十九所示，当机针行程在动作的开始和动作的结束时，如果针行程左右运动的高度不相等，就会出现跳针现象，同时，针也会将布扯破，这样就不会绣出好产品。

要想获得正确协调的运动位置，应拆除上盖，松开上轴上的螺旋齿轮支头螺钉，轻轻的拔动齿轮，注视针迹，将机针的运动调至协商位置，拧紧支头螺钉。

图十九Figure19

2、旋梭定位

① 将摆针宽度固定在零位上，用手朝自己方向转动带轮，使机针（双针曲折缝指右边的机针，下同)从下极限上升2.2毫米，此时旋梭尖应在机针中心线上（图二十）。

图二十Figure20

② 如需调整，可旋松旋固定螺钉，将旋梭尖对至机针中心线上，此时机针小缺口和旋梭之间隙约为0.05-0.1毫米(图二十一)。

3、针杆高度

① 调节摆针宽度到最大，用手朝自己方向转动带轮，使机针位于左面位置，旋梭尖在机针中心，此时机针孔上沿至旋梭尖尺寸应为0-0.5毫米。（图二十二)

② 如针杆高度位置不对，则拆去面板，旋松针杆连接轴螺钉，提高或放低针杆达到高度要求再旋紧螺钉。

4、旋梭的装卸(见图二十三)

取下旋梭之前，先将针杆升到最高位置，再卸下针板，机针和梭心套，然后旋下旋梭定位钩螺钉1，卸去旋梭定位钩3；而后松开旋梭的三只螺钉2，使旋梭在它的传动轴上能够自同转动，接着用手转动上轮，使送料牙架走向高处。到此，可以用手去旋转旋梭，使它让过将和送料牙架相碰位置，而后取出。

装卸梭过程是依次先拆后装的回复。

图二十一Figure21

图二十二Figure22

图二十三Figure23

VI.LOCATIONANDREGULATIONOFTHEMACHINE

1.Regulationof symmetrical position of horizontal stitches

Asshown in Figure19.When the height of the leftand right movement during theneedle travelling isnotthesame,eitherat thebeginningor in theend,skippingwillbe foundand theembroiderymaterial might tear by the needle.In this wayno good embroiderycould bepro-duced.

Inorder that the correctand coordinate position of movement could beachieved,the following stepsshould be taken;remove the upper cover,release the setscrew on the gear of upper shaft and then slightly turn the gear to observe the stitchesand adjust the movement of the needle uptil to the coordinated position,at length tighten the set screw.

2.location of rotatingshuttle

(1)Manuallysotoraise theneedle (Incaseof doublecurvilinearstitches,theneedle isreferred to the one on the right side,The same below) by 2 . 2mm from fht lower limit,when the point of rotating shuttle would be at the central line of the needle.(See Figure 20)

(2)If necessary，loosen the set screwontherotating shuttle,the point of which should be aligned with the central line of the needle.At the moment,thespace between the notch of needle and the rotating shuttle is about 0 . 0 5 . 0 . 1mm (see Figure 21).

3.Heightoftheneedlsstasff

(1) Set the width of swaying needle to the maximumand turn the belt pully toward the operatormanually to make the needle stand atthe leftpositionand the shutle pointat the centre of theneedle.At themoment the length from the needle hole tillthe shuttle point should be 0 ~ 0 . 5mm (see Figure 22)

(2)If the height of needlestaffis not in the correct position,it isnecessary toremove the panel,release the connecting screwontheneedlestaff,and thenraiseorlowerthestaffto the standardheight.Afterthat,re-tightenthescrew.

4.MountingandDismountingofRotatingshuttle (seeFigure 23)

Tostart with,raise the needle staff to the maximumbeforeremoving the rotating shuttle,then remove needle plate,needleand the case of shuttle core，meanwhile take down the screw1on the locating hook for therotating shutleand the locating hook3itself;release thethree screws2 onthe shuttle,which iscapableof rotating freelyalong the driving spinde,Turn theupper wheel manually to make the feeding rack go upward.Af this point,turn the rotatingshuttlemanually to allowthe feeding rack passingbythepositionto be touchedand thenremove it.

Themounting or shuttle isdone inan inverted orderwith theprocess of dismounting.

七、一般故障及其处理方法VII.FAULTSLOCATINGANDHOWTOTREAT

八、几种缝纫方法和附件的使用

1、直缝：

采用专用的直缝压脚、针板与送料牙(图二十四)比采用多功能的压脚、针板与送料牙进行直缝，效果会更佳，适用范围会更广。

进行直缝时，横针距必须调至0，采用直缝锁紧装置锁紧针杆摆动架，并换上专用压脚、针
板、送料牙。更换送料牙时(图二十五)，先卸下针板和针板内盖板，把推板往外拉，松开二只螺
钉，卸下多功能送料牙，换上专用送料牙。R

图二十四Figure24<br>图二十五Figure25

2、刺绣：

刺绣前的准备工作：

① 必需使横针距在 0 ~ 1 2mm 之间任意调节，把直针距调至0位，并调整膝控部件(见图三)，使件2控制3运动，则膝部可以控制机针的摆动。

{ 2 } 卸下压脚、针板、针板内盖板、推板和送料牙，换上绣花板；

③用左手捏紧面线线头，用手朝自己方向转动带轮，使底线从针板孔中拉出；

{ 4 } 确保内外绷格将缝料绷紧，否则引起跳针，断线及缝料缩(如图二十六)。

图二十六Figure26

3、拉链缝：

这种缝法采用拉链压脚(图二十七)，便于针迹接近突出的边，并旋松螺钉B，调节压脚，使机针位于压脚的左、右边槽A，可适用于图二十八中几种情况等。

4、卷边缝

卷边缝采用卷边压脚(图二十九)

拆掉多功能压脚，换上卷边压脚，采用直缝法，针位选择中间，就可以进行如图三十的卷边缝。

5、包梗缝：

进行包梗缝时，更换上专用的包梗压脚、针板、送米牙（图三十一)，针位选择中间，横针距调节至3mm之内，把一条较粗的线穿过包梗压脚的小槽A，就可以进行包梗缝。（图三十二）

6、装饰缝：

只要变换左、中、右的针位，及熟练控制横针距，就可以缝出如图三十三的图案。

7、其它一些实用缝法(见图三十四)。

VII.MODESOFSEWINGANDAPPLICATIONOFACCESSORIES

1.Linear Sewing

Incase of linear sewing,the best effectand widerscope of application willbeachieved if by aboptionof thespecial linearpresserfoot,needleplateandmaterial-feeding tooth(seeFigure 24) ratherthanthemulti-functional ones.

During linear sewing,the horizontal needle distance should be set toO position,and the linear lockingunit with swayingrackof lcokingneedle shaft canbe used in combinationwith special presserfoot,needleplateand material-feeding tooth.Toreplacematerial-feeding tooth,firstlyremoveneedle plateand its innercover,thenpush the thrust plateoutward,release twoscrews, andreplace themulti-functionalmaterial-feeding toothwiththe specialone.

2.Embroidery

Preparationbeforeembroidering

(1)Itshould benoted thatand free regulationcanbe madeat the horizontal needle distance between 0 ~ 1 2 \mathsf {mm } Setthevertical needledistance to O positionand willadjust theknee-control parts(see Figure 3)to make the component2control themovement of the component 3.Asa result,the'knee"canbe predicted to control theswayingof theneedle;

(2)Removethepresser foot,needleplate,innercover,thrustplateandmaterial-feeding tooth. Afterthat,theembroideringplateisput intouse;

(3)Hold firmly theendof thesurfacestitcheswith your left hand,turn the beltpulleymanuallytoward theoperator,and thenmakes thebottomstitchespulloutfromtheholesof theneedle plate;

(4)Make sure to stretch tightly thematerial between the internal and external embroidering framse.Otherwise,skipping,stitches-breaking or material creased might be found (see Figure 26).

3.Zippered Sewing

Thismodeispreferable tomakeuse of zippered presserfoot (see Figure27)inabid to makethestitchesmoreaccessibletothe projecting stitches,Thenrelease thescrewB,regulate thepresser footandsettheneedletothepresserfootandsettheneedleto theleftand right groovesAof the presser foot.Thismode isexpected tosuit for the sewings,seen in the Figure28.

4.Hem-wrappingmode

Inthis mode，the hem-wrapping presser foot can be used aswe wish (see Figure 29).Remove themulti-functional presser foot and replace it with the hem-wrappingone.This isalsoa modeoflinear sewing with the needlesetto thecentral position,shownas in the Figure 30,the hem-wrappingoperationcanbeeffected.

5.Stem-wrappingmode

Duringthe sewing with the stem-wrapping mode,the special stem-wrapping presser foot,needieplateandmaterial-feeding tooth (see Figure31) shouldbeput intouse.Theneedle is set to the central positon and the horizontal needle distance set to 3mm ，andthenruntherougher thread through the small groove Aon the stem-wrapping presser foot so that the sewing of this modewill be smoothly conducted (see Figure 32).

6.Decoration Sewing

If theleft,central and right needle positionscanbe freely changeableand the horizontal needledistance skillfully controlled，the patterns of the decoration sewing willbewell achieved as seen in the Figure33.

7.Othermodesofpracticalsewing(seeFigure34)

图二十七Figure27

图三十Figure30

图二十九Figure29

图三十二Figure32

图三十一Figure 31<br>图三十三Figure33

1

0

1 S

锁钮眼 Button hole

荷叶绣 Lolus-leavesEmbroidery

K

拼缝 Piecing-togetherSewing

绣字 Word-Embroidery

套结缝 Looping Sewing

九、零件样本IX.COMPONENTEXAMPLE

1、机壳部件Componentsof housing