CN202559086U - Color changer of computerized embroidery machine - Google Patents

Color changer of computerized embroidery machine Download PDF

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Publication number
CN202559086U
CN202559086U CN2012202081917U CN201220208191U CN202559086U CN 202559086 U CN202559086 U CN 202559086U CN 2012202081917 U CN2012202081917 U CN 2012202081917U CN 201220208191 U CN201220208191 U CN 201220208191U CN 202559086 U CN202559086 U CN 202559086U
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CN
China
Prior art keywords
potentiometer
colour changing
drive seat
changing device
computerized emboridering
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CN2012202081917U
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Chinese (zh)
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赵尚品
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ZHUJI MAYA ELECTRIC APPLIANCE MACHINERY CO Ltd
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ZHUJI MAYA ELECTRIC APPLIANCE MACHINERY CO Ltd
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Abstract

The utility model provides a color changer of a computerized embroidery machine aiming at the defects and shortcomings of low marginal definition of embroidery patterns, color level obscurity and poor embroidery quality due to return difference generated by acquired needle position signals and equipment accidents resulting from false needle position signals sent by a needle position acquisition device of a color changer in the prior art. The color changer of the computerized embroidery machine comprises a needle bar frame driving device and a needle position signal acquisition device, the needle bar frame driving device comprises a driving seat for driving a needle bar frame, a driving seat driving device for driving the driving seat to perform linear reciprocating displacement and a driving seat guide rail, the needle position signal acquisition device comprises a potentiometer and a potentiometer shaft driving device, the potentiometer and the driving seat are synchronous in linear reciprocating displacement, and the potentiometer shaft driving device is capable of converting the linear displacement of the potentiometer to gyration of a potentiometer shaft. By the aid of the structure, the color changer of the computerized embroidery machine not only can provide accurate needle position signals but also is safe and reliable in color change.

Description

Computerized emboridering machine colour changing device
Technical field
The utility model relates to computerized emboridering machine, particularly relates to computerized emboridering machine colour changing device.
Background technology
The raising of Along with people's quality of life; Quality scale to articles for daily use such as clothing dress ornament, household offices has also proposed harsh requirement; Embroidery product particularly, exquisite colorful embroidery pattern, clearly the style edge, style gloss more and more receives people's favor uniformly.
Computerized emboridering machine colour changing device is a necessary mechanism that serves embroidery machine, and its effect mainly is that to make the embroidery pattern color no longer be single color.
Computerized emboridering machine colour changing device mainly comprises two parts, and a part is the needle bar frame drive unit, and another part is a pin position signal pickup assembly.Needle bar frame is provided with a lot of pins, and the embroidery line on every pin has various colors, thereby embroiders out colorful style through conversion pin position, and the style that embroidery is come out no longer is single color.So pin is just changed in colour changing in fact, because the color that the embroidery line on every pin is had nothing in common with each other, so generally be called " colour changing " in the row.The effect of needle bar frame drive unit is to make about the embroidery machine needle bar frame to move back and forth, thereby conversion pin position makes the embroidery machine embroidery provide the embroidery of change color.The main time spent collection pin position signal of doing of pin position signal pickup assembly; The pin position signal that collects is exported to primary control program, after primary control program is judged the pin position, assigns the pricker order to head; The shank that head is just the stirred needle bar frame pin that falls, the needle plate hole accurately is preset on the pin position.By style programme-control needle bar frame drive unit, thus the displacement of control needle bar frame, so if signal receives the influence of mechanical return difference, just shank can shift to an earlier date or postpone pin, when return difference was big, pin was just pricked less than in the hole, and can prick on the needle plate.Primary control program judges that through " style program " colour changing is moved and other embroideries are made track according to pin position signal, simultaneously on the present control panel of pin position marked body, makes things convenient for semi-automatic hand by colour changing.
Existing known computerized emboridering machine needle bar frame drive unit is made up of variable-frequency motor, cylindrical cam 33, push rod 34, push rod drive seat 35 and push rod drive seat slide rail.Connect cylindrical cam by variable-frequency motor through gear train; On cylindrical cam, be arranged at intervals with helical groove 36; Push rod 34 is fixedly installed on the drive seat 35; And the axis of push rod and the parallel axes of cylindrical cam fixedly install needle roller 37 at an end of drive seat, and this needle roller 37 rolls with helical groove 36 and is connected.During work, drive cylindrical cam by variable-frequency motor and rotate, 360 ° of just replaceable three pin positions rotate a circle; Middle through two platforms; Needle roller has 30 ° the anglec of rotation when platform, the pin position keeps motionless on this anglec of rotation of 30 °, is 90 ° so change the pin angle really.When cylindrical cam rotated, under the constraint of drive seat slide rail, drive seat was done straight-line displacement, drove push rod and also did straight-line displacement; When needs pin position is turned round, the variable-frequency motor counter-rotating, drive seat is subjected to displacement round about; So back and forth, reciprocal straight-line displacement takes place in the driving needle bridge, accomplishes and changes the pin action.
Existing computer embroidery eedle position signal pickup assembly is made up of the gear and the optocoupler baffle plate of pair of meshing; Wherein a gear wheel is fixedly connected with the cylindrical cam axle; Another pinion is fixedly connected and is fixedly installed on the casing with the optocoupler baffle plate is coaxial, and cylindrical cam drives gear wheel and rotates together when rotated; Rotation that the large gear turn the small gear; Pinion drives the optocoupler baffle plate rotation that is installed together, and the optocoupler baffle plate is provided with two gap, stops during through rotation that the light beam of optocoupler comes to electric-control system transmission electric potential signal.
Adopt the computerized emboridering machine colour changing device of said structure to have following deficiency: 1, since the rotation of optocoupler baffle plate be by cylindrical cam through be fixedly installed on the cylindrical cam axle gear wheel with drive indirectly with the coaxial pinion that is connected of optocoupler baffle plate, the signal that the optocoupler baffle plate is collected is the turn signal of cylindrical cam, is not to be the shift reciprocately signal of push rod; Needing the turn signal of cylindrical cam is converted to the shift reciprocately signal of push rod, is indirect signal so the optocoupler baffle plate obtains, rather than the direct signal of push rod displacement; The pin position signal that obtains like this; Be prone to produce backlash phenomena, the return difference value that is produced is between 10 °~30 °, sometimes up to 50 °; Pin position signal return difference value is big; Make that to change pin hour hands position inaccurate, make that the marginal definition of embroidery style is low, color level fuzzy, the quality of embroidery is low; Also have a shortcoming to be exactly,, need only cylindrical cam and rotate because rotatablely moving of optocoupler baffle plate driven by cylindrical cam; The optocoupler baffle plate just sends pin position signal, and when the needle bar frame drive seat breaks down when no longer doing reciprocal operation, and cylindrical cam is when being rotated further; The optocoupler baffle plate can send false pin position signal, makes embroidery machine produce misoperation, can damage shank, pin and the needle plate of needle bar frame like this; When serious, can damage head section, and even the complete machine paralysis is scrapped; 2, make drive seat do cylindrical cam and the needle roller that produces shift reciprocately, itself have following deficiency: the manufacturing technique of cylindrical cam is complicated, and is high to the required precision of curved slot curvature of curve, so manufacturing cost is high; Be the lower pair drive mechanism between needle roller and groove, the frayed phenomenon of groove is serious, and the life-span of cylindrical cam is short; For needle roller is moved along groove, there is the gap between needle roller and groove, the biased difference of pin is more than or equal to 0.1mm under the situation that needle roller does not does not wear and tear; Moreover in the cylindrical cam course of work, the frayed phenomenon of groove is serious; When drive seat was done shift reciprocately, pin position return difference was bigger.When pin position return difference during greater than 0.1mm, the marginal definition of embroidery style is low, color level fuzzy, so the embroidery quality that obtains is low; Because the cylindrical cam half-twist, push rod drives pin position of needle bar frame conversion, and the anglec of rotation is very little, and the linearly operating distance is so require the power of drive motors high; Because be provided with platform between curved slot, the motion of drive seat is variable motion in addition, make the time marquis colour changing speed of colour changing can't promote, stride that the pin colour changing can't a colour changing puts in place, pauses at interval, operation is not smooth, very big collision noise is arranged.
The utility model content
The purpose of the utility model is; The pin position signal of being gathered to colour changing device in the prior art produces return difference; Make the marginal definition of embroidery style low, color level fuzzy, the quality of embroidery is low, and pin position signal pickup assembly sends false pin position signal; Cause taking place the shortcomings and deficiencies of equipment breakdown, provide a kind of accurate pin position signal, safe and reliable colour changing device can be provided.
The purpose of the utility model realizes through following technical proposals:
A kind of computerized emboridering machine colour changing device; Comprise needle bar frame drive unit and pin position signal pickup assembly; Said needle bar frame drive unit comprises the drive seat of driving needle bridge, drive seat drive unit and the drive seat guide rail that the driving drive seat is carried out the linear reciprocation displacement; Said pin position signal pickup assembly comprises potentiometer and potentiometer shaft drive unit; Said potentiometer and said drive seat synchronous linear shift reciprocately, said potentiometer shaft drive unit can convert the straight-line displacement campaign of said potentiometer to the gyration of potentiometer shaft;
Said drive seat is fixedly connected needle bar frame through push rod, and said push rod and said guide rail laterally arrange, and said potentiometer is fixedly installed on said drive seat or the said push rod, realizes described potentiometer and said drive seat synchronous linear shift reciprocately;
Said potentiometer shaft drive unit is connected with a joggle by the rack-and-pinion transmission and forms, and said gear is fixedly installed on said potentiometer shaft, and said tooth bar fixedly installs;
Said drive seat drive unit is by the bolt and nut transmission and drive the stepper motor that said screw rod rotates and form; Said drive seat is fixedly connected with said nut; Said guide rail and said drive seat are slidingly connected, and when said screw rod rotated, said nut drove said drive seat and does rectilinear motion;
Said bolt and nut transmission is a ball screw nut transmission;
Described computerized emboridering machine colour changing device is provided with casing; Said screw rod is rotatably connected through bearing and said casing; Said tooth bar and said guide rail are fixedly installed on respectively on the said casing, and the through hole that said push rod passes on the said casing is fixedly connected with the needle bar frame pull bar;
One end of said screw rod is fixedly connected with step motor shaft; Said bearing is thrust bearing and rolling bearing; The other end of said screw rod is a multidiameter, and said thrust bearing and rolling bearing are arranged on the first step, saidly at thrust bearing and roller bearing shop bearing plate is set; Said bearing plate is fixedly installed on the said casing; The diameter of second step is greater than the internal diameter of said rolling bearing, and the internal diameter of said bearing plate compresses said thrust bearing less than the external diameter of said rolling bearing by being arranged on the free-ended handwheel of said screw rod;
One end of said screw rod is fixedly connected through marking closely with the output shaft of said stepper motor in radially being provided with;
The helical pitch of said ball screw is 5mm;
The motor shaft of described stepper motor is an axis, and encoder is arranged on the end relative with the output of motor shaft, and said encoder and said stepper motor are electrically connected with electric-control system respectively;
The modulus of described rack-and-pinion is 0.5.
Adopt the colour changing device of the utility model structure; Because on the drive seat that potentiometer is fixedly installed on push rod is fixedly connected as signal collecting element; Casing is provided with the potentiometer shaft drive unit that the straight-line displacement of drive seat is changed into the gyration of potentiometer shaft; The displacement of potentiometer and the displacement synchronous of push rod, the signal that potentiometer collects are direct signal, can pin position return difference value be controlled at below 1 °; The biased difference of corresponding air line distance pin is controlled at below the 0.0138mm; Guarantee the accuracy of every pin position needle falling point, directly effectively promoted the embroidery quality, the operating efficiency of one-piece computer embroidery machine and quality scale have promoted a new step.And because potentiometer is connected in aggregates with drive seat; The displacement of potentiometer is driven by drive seat, carries out synchronous shift with drive seat, so; When drive seat breaks down or bolt and nut when breaking down; Potentiometer no longer sends pin position signal, has prevented sending of glitch, avoids the generation of mechanical accident.
Description of drawings
Fig. 1 is the utility model computerized emboridering machine colour changing device example structure sketch map;
Fig. 2 is the utility model computerized emboridering machine signal pickup assembly example structure sketch map;
Fig. 3 is the utility model computerized emboridering machine needle bar frame drive unit example structure sketch map;
Fig. 4 is an I partial schematic diagram enlarged drawing.
Description of reference numerals
1-casing 2-screw rod 3-nut 4-rolling bearing 5-bearing plate 6-thrust bearing 7-handwheel 8-guide rail 9-linear bearing 13-potentiometer fixed mount 14-gear 15-potentiometer 16-drive seat 17-tooth bar fixed mount 19-push rod 20-tooth bar 22-stepper motor 23-encoder 24-potentiometer shaft 26-first step 27-second step
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to describe:
Shown in Fig. 1-3, the colour changing device of the utility model comprises needle bar frame drive unit and pin position signal pickup assembly.
The preferred following structure of the utility model is as the needle bar frame drive unit: it comprises, and push rod 19, drive seat 16, bolt and nut are secondary, the stepper motor 22 of guide rail 8 and drive screw turns.Drive seat 16 is with guide rail 8 sliding connections, be fixedly connected with nut.One end of push rod 19 is fixedly installed on the drive seat 16, and push rod 19 laterally arranges with guide rail 8, and the through hole that the other end of push rod passes on the casing is fixedly connected with needle bar frame.One end of screw rod is fixedly connected with casing 1 through bearing, and the other end holds out against with motor shaft through screw and is connected.Stepper motor is electrically connected with electric-control system through encoder 23.
The preferred following structure of the pin position signal pickup assembly of the utility model: it comprises potentiometer 15 and potentiometer shaft drive unit.
The potentiometer 15 of the utility model is fixedly installed on the drive seat 16, also can be fixedly installed on push rod 19 or the nut, and main purpose is the displacement synchronous that makes the displacement energy and the push rod of potentiometer, and potentiometer can obtain direct pin position signal like this.
The preferred following two kinds of structures of potentiometer shaft drive unit: first kind, it is made up of gear and tooth bar transmission, and gear is fixedly installed on the potentiometer shaft, and tooth bar is fixedly installed on the casing, and wheel and rack is connected by meshing transmission; Second kind, it is made up of flute profile band and belt wheel, and belt wheel is fixedly installed on the potentiometer shaft, and the flute profile band is fixedly installed on the casing, and the flute profile band is fixedly connected with casing through its two ends.The potentiometer shaft drive unit of above-mentioned two kinds of structures; All can the straight reciprocating motion of the potentiometer straight reciprocating motion of drive seat 16 or push rod 19 or nut just be changed into the gyration of potentiometer shaft 24, make potentiometer pass through the anglec of rotation and obtain direct pin position signal.
Preferred bolt and nut pair is the ball screw pair of nut, prevents because the wearing and tearing of bolt and nut make drive seat when backhaul, produce the gap, and makes the pin position inaccurate.
Pass through the linear bearing sliding connection between guide rail and drive seat.Sliding friction is reduced, and it is more flexible to slide.
For preventing that screw rod from axial displacement taking place in rotation process, screw rod and link bearing are multidiameter, and thrust bearing 6 and rolling bearing 4 are arranged on the first step 26; Bearing plate 5 is arranged between thrust bearing 6 and the rolling bearing 4; Bearing plate 5 is fixedly connected with casing 1, and the diameter of second step 27 is greater than the internal diameter of rolling bearing 4, and the internal diameter of bearing plate 5 is less than the external diameter of rolling bearing 4; By bearing plate 5 restriction rolling bearing 4 displacements to the right; Shaft shoulder restriction rolling bearing 4 by second step 27 is moved to the left, and can limit screw rod like this to motor drive direction generation axial displacement, is moved right by second step restriction screw rod.Free end at screw rod is provided with square toes, is used for installing handwheel, and the installing hole of handwheel is interior stepped hole; Macropore is a circular hole, and aperture is a square hole, and the diameter of its macropore is more than or equal to the diameter of first step; Handwheel is fixedly connected with square toes through square hole; The hole depth value of macropore is slightly larger than first step length and deducts rolling bearing thickness and deduct thickness of compressive plate again and deduct thrust bearing thickness again, and handwheel not only can make things convenient for the adjusting in thrust bearing gap like this, also have concurrently simultaneously compress, the fixedly effect of thrust bearing 6.Through the cooperation of above-mentioned bearing, bearing plate, handwheel and step axle, restriction screw rod generation axial displacement, simultaneously, it is flexible, smooth and easy that thrust bearing 6 rotates screw rod 2.The combination of handwheel, the shaft shoulder, thrust bearing, rolling bearing and bearing plate simplifies, shortens, compact overall structure.Preferred thrust bearing is arranged on outside the casing 1, and is convenient to the adjusting of bearing clearance and assembling, the repair demolition operation of drive unit.
The external form of preferred ball nut 3 is a flange form, convenient like this location, loading and unloading, and the concentricity of fine-tuning and screw rod.
Preferred guide rail is two that laterally arrange, and makes the drive seat displacement more steady.
The helical pitch of preferred ball screw is 5mm, external diameter ¢ 20mm, and each pin distance of positions is from being 15mm; Like this when screw rod commentaries on classics 3 circles are 1080 °; Pin position of corresponding axial rectilinear motion conversion, pin position of 90 ° of conversion of the commentaries on classics of the cylindrical cam of comparing, laborsaving nearly 12 times.
In concrete the application, the modulus that preferably makes the rack-and-pinion transmission is for smaller or equal to 0.5, like this, can prevent the hysterisis error that produces because of the fit clearance between rack-and-pinion, gathers pin position signal accurately when guaranteeing backhaul.The preferred involute cylindrical spur gear of rack-and-pinion transmission.
During work, encoder 23 receives the colour changing signal of electric-control system, gives stepper motor the rotating cycle transfer of data, and stepper motor 22 directly drives ball screw and rotates.At first, ball screw 2 is retrained and can only rotate by rolling bearing 4, bearing plate 5, pressure bearing 6, handwheel 7, and axially straight line moves; Secondly; Because ball nut 3 is fixed on the drive seat 16; Drive seat 16 can only be done axially-movable along lead rail axis 8 by 8 constraints of two lead rail axis; So when the driving that receives stepper motor 22 when ball screw 2 rotated, the ball nut 3 that is engaged with just drove drive seat 16 and does reciprocal straight-line displacement.Be installed in push rod 19 on the drive seat 16 along with drive seat 16 is done synchronous linear motion, push rod 19 connects the colour changing action that needle bar frame is accomplished the pin position through pull bar.Drive potentiometer 15 during drive seat 16 displacements synchronous shift takes place, because tooth bar 20 is fixed, gear 14 rotates; Gear driven potentiometer shaft 24 rotates; Potentiometer produces pin position signal through the anglec of rotation of potentiometer shaft, and this signal is transferred to electric-control system, after the electric-control system primary control program is judged the pin position; The control head is stirred shank on the needle bar frame pin that falls, and the needle plate hole accurately is preset on the pin position.By style programme-control needle bar frame drive unit, thus the position of control needle bar frame, when the position of pin position signal and needle bar frame universal time coordinated mutually; Just, the mechanical return difference of the pin position signal that is collected is when the scope that allows, and shank accurately falls in the pin hole; When mechanical return difference surpassed allowed band, shank shifted to an earlier date or postpones pin, when return difference is big; Pin is just pricked less than in the hole, and can prick on the needle plate, causes fault.
Adopt ball screw nut transmission to drive push rod, the bolt and nut transmission belongs to high auxiliary driving, during colour changing action evenly smoothness, noiselessness, speed is fast, efficient is high; This device of a 12 pins can be applied on the needle bar frame machine of specifications such as 9 pins, 6 pins equally, the specification applied range;
The needle bar frame drive unit of the utility model is rotated by the step motor drive ball screw, and ball nut is done at the uniform velocity linear reciprocation displacement under the constraint of guide rail; Be rolling friction between the bolt and nut pair, the bolt and nut pair is not easy to wear, in backhaul, is difficult for producing the gap; So it is accurate to change pin hour hands position, owing to stepper motor can initiatively rebound the excessive back, position of crossing, colour changing pin position after receiving effect of inertia, so even generation pin position inertia is excessive; Also can correct by stepper motor; So it is accurate to change pin pin position, has improved the accuracy of changing pin, has improved the quality of embroidery.
Because of on computerized emboridering machine; Final colour changing stress output is to fixedly install push rod 19 together with drive seat 16; Drive seat 16 is synchronous with the motion of push rod 19; Drive seat 16 is synchronous with the motion that potentiometer 15 is, the potentiometer shaft drive unit rectilinear motion that this and push rod of potentiometer is synchronous transforms into the rotation of potentiometer shaft, so pin position backlash phenomena are effectively solved.
In sum, adopt the computerized emboridering machine colour changing device of the utility model example structure,
Because the rectilinear motion of needle bar frame is to form by the step motor drive bolt and nut is secondary, so the speed of service is even during colour changing, middle do not have a pause, and the pin position is accurate, noise is little; Probably need change 90 ° with pin position of cylindrical cam formula needle bar frame drive unit conversion is that 0.25 circle is compared; The needle bar frame drive unit of this structure; The helical pitch of its screw rod is 5mm, and promptly 1080 ° on 3 circles need be changeed in pin position of conversion, and torsion is economized 10 times than existing cylindrical cam formula needle bar frame drive unit; Stride the disposable colour changing of pin colour changing and put in place, the colour changing process does not have intermittently and does not have pause yet, at the uniform velocity smoothly puts in place; Overall construction design is compact, firm, reasonable, and assembling is simple, convenient disassembly.Versatility is good, and the screw rod color replacing mechanism of a 12 pins can be applied on the machines such as 9 pins, 6 pins, 3 pins equally, and frame colour changing boxboard parameter and panel size can unified standards; The pin position is accurate, and by the direct drive screw turns of stepper motor, potentiometer carries out synchronizing signal to the displacement of push rod and extracts, so all be direct driving, does not have drive gap therebetween or drive gap is very little, and the signal pin position is accurate, and pin position signal extraction return difference value is low; The colour changing device of the utility model, pin position return difference value are less than 1 °, and the biased difference of corresponding air line distance pin is less than 0.0138mm.

Claims (11)

1. computerized emboridering machine colour changing device; Comprise needle bar frame drive unit and pin position signal pickup assembly; Said needle bar frame drive unit comprises the drive seat (16) of driving needle bridge, drive seat drive unit and the drive seat guide rail (8) that driving drive seat (16) is carried out the linear reciprocation displacement; It is characterized in that; Said pin position signal pickup assembly comprises potentiometer (15) and potentiometer shaft drive unit, said potentiometer (15) and said drive seat (16) synchronous linear shift reciprocately, and said potentiometer shaft drive unit can convert the straight-line displacement campaign of said potentiometer (15) to the gyration of potentiometer shaft (24).
2. computerized emboridering machine colour changing device as claimed in claim 1; It is characterized in that; Said drive seat (16) is fixedly connected needle bar frame through push rod (19); Said push rod (19) laterally arranges with said guide rail (8), and said potentiometer (15) is fixedly installed on said drive seat (16) or the said push rod (19), realizes described potentiometer and said drive seat synchronous linear shift reciprocately.
3. according to claim 1 or claim 2 a kind of computerized emboridering machine colour changing device; It is characterized in that; Said potentiometer shaft drive unit is connected with a joggle by the rack-and-pinion transmission and forms, and said gear (14) is fixedly installed on the said potentiometer shaft (24), and said tooth bar (20) fixedly installs.
4. computerized emboridering machine colour changing device as claimed in claim 1; It is characterized in that: said drive seat drive unit is by the bolt and nut transmission and drive the stepper motor (22) that said screw rod (2) rotates and form; Said drive seat (16) is fixedly connected with said nut (3); Said guide rail (8) is slidingly connected with said drive seat (16), and when said screw rod (2) rotated, said nut (3) drove said drive seat (16) and does rectilinear motion.
5. computerized emboridering machine colour changing device as claimed in claim 4 is characterized in that: said bolt and nut transmission is a ball screw nut transmission.
6. a kind of computerized emboridering machine colour changing device as claimed in claim 3; It is characterized in that: described computerized emboridering machine colour changing device is provided with casing (10); Said screw rod (2) is rotatably connected through bearing and said casing (1); Said tooth bar (20) and said guide rail (8) are fixedly installed on respectively on the said casing (1), and the through hole that said push rod (19) passes on the said casing (1) is fixedly connected with the needle bar frame pull bar.
7. computerized emboridering machine colour changing device as claimed in claim 4; It is characterized in that: an end of said screw rod (2) is fixedly connected with step motor shaft; Said bearing is thrust bearing (6) and rolling bearing (4); The other end of said screw rod (2) is a multidiameter, and said thrust bearing (6) and rolling bearing (4) are arranged on the first step (26), saidly between thrust bearing (6) and rolling bearing (4), bearing plate (5) is set; Said bearing plate (5) is fixedly installed on the said casing (1); The diameter of second step (27) is greater than the internal diameter of said rolling bearing (4), and the internal diameter of said bearing plate (5) compresses said thrust bearing (6) less than the external diameter of said rolling bearing (4) by being arranged on the free-ended handwheel of said screw rod (7).
8. computerized emboridering machine colour changing device as claimed in claim 4 is characterized in that: an end of said screw rod is fixedly connected through marking closely with the output shaft of said stepper motor (22) in radially being provided with.
9. computerized emboridering machine colour changing device as claimed in claim 5 is characterized in that: the helical pitch of said ball screw is 5mm.
10. computerized emboridering machine colour changing device as claimed in claim 4; It is characterized in that: the motor shaft of described stepper motor is an axis; Encoder (23) is arranged on the end relative with the output of motor shaft, and said encoder (23) and said stepper motor are electrically connected with electric-control system respectively.
11. computerized emboridering machine colour changing device according to claim 3 is characterized in that the modulus of described rack-and-pinion is 0.5.
CN2012202081917U 2012-05-10 2012-05-10 Color changer of computerized embroidery machine Withdrawn - After Issue CN202559086U (en)

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Application Number Priority Date Filing Date Title
CN2012202081917U CN202559086U (en) 2012-05-10 2012-05-10 Color changer of computerized embroidery machine

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102634942A (en) * 2012-05-10 2012-08-15 诸暨玛雅电器机械有限公司 Color-changing device of computer embroidery machine
CN106906582A (en) * 2016-11-07 2017-06-30 浙江越隆缝制设备有限公司 Reduction stops the embroidery machine color changing box of pin error

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102634942A (en) * 2012-05-10 2012-08-15 诸暨玛雅电器机械有限公司 Color-changing device of computer embroidery machine
CN106906582A (en) * 2016-11-07 2017-06-30 浙江越隆缝制设备有限公司 Reduction stops the embroidery machine color changing box of pin error

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