CN202559084U - Needle bar frame driving device for computerized embroidery machine - Google Patents
Needle bar frame driving device for computerized embroidery machine Download PDFInfo
- Publication number
- CN202559084U CN202559084U CN201220209714XU CN201220209714U CN202559084U CN 202559084 U CN202559084 U CN 202559084U CN 201220209714X U CN201220209714X U CN 201220209714XU CN 201220209714 U CN201220209714 U CN 201220209714U CN 202559084 U CN202559084 U CN 202559084U
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- needle bar
- bar frame
- bearing
- drive unit
- screw rod
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Abstract
Aiming to the deficiencies in the prior art that a needle bar frame driving device has low needle position precision, high noise, complicated structure, low color change speed and efficiency, the utility model provides a needle bar frame driving device for a computerized embroidery machine, which includes a screw rod and screw nut transmission pair, a stepping motor driving a screw rod to rotate, a driving seat, a push rod and a guiding rail, wherein the driving seat is fixedly connected with the screw nut; and the guiding rail is connected with the driving seat in a sliding manner. When the screw rod rotates, the screw nut drives the driving seat to perform rectilinear motion, the push rod is fixedly connected with the driving seat, and the push rod is parallel to the guiding rail, so that the needle bar frame driving device adopting the structure not only has low noise, but also improves the re-needling needle position precision and re-needling speed, and improves the embroidery quality and working efficiency.
Description
Technical field
The utility model relates to computerized emboridering machine, particularly relates to computerized emboridering machine needle bar frame drive unit.
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 is made up of 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.
As shown in Figure 1, 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.Adopt the needle bar frame drive unit of this kind structure, high because the manufacturing technique of cylindrical cam is complicated to the required precision of curved slot curvature of curve, so manufacturing cost is high; Because between needle roller and groove be the lower pair drive mechanism, the frayed phenomenon of groove is serious, and the life-span of cylindrical cam lacks; 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;, noise low to needle bar frame drive unit pin position accuracy in the prior art is big, complex structure, slow, the inefficient deficiency of colour changing speed; A kind of needle bar frame drive unit is provided; Not only noise is little for it, and can improve the accuracy and the speed of the pin position of changing pin, improves the quality and the operating efficiency of embroidery.
The purpose of the utility model realizes through following technical proposals:
A kind of computerized emboridering machine needle bar frame drive unit; Said pin position frame drive unit is made up of stepper motor, drive seat, push rod and the guide rail of bolt and nut transmission, drive screw turns, and said drive seat is fixedly connected with said nut, and said guide rail and said drive seat are slidingly connected; When said screw rod rotates; Said nut drives drive seat and does rectilinear motion, and said push rod is fixedly connected with said drive seat, and said push rod and said guide rail laterally arrange;
Said bolt and nut transmission is a ball screw nut transmission;
Described needle bar frame drive unit is provided with casing, and said screw rod is rotatably connected through bearing and said casing;
One end of said screw rod is fixedly connected with said 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 said second step is greater than the internal diameter of rolling bearing, and the internal diameter of rolling bearing pressing plate compresses said thrust bearing less than the external diameter of said rolling bearing by being arranged on the free-ended handwheel of screw rod;
One end of said screw rod is fixedly connected through marking closely with said step motor shaft in radially being provided with;
The helical pitch of said ball screw is 5mm;
Described stepper motor is electrically connected encoder.
Adopt the needle bar frame drive unit of the utility model 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.
Description of drawings
Fig. 1 is the utility model prior art colour changing apparatus structure sketch map;
Fig. 2 is the utility model computerized emboridering machine needle bar frame drive unit example structure sketch map;
Fig. 3 is a screw rod step shaft portion structure embodiment sketch map.
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 16-drive seat 19-push rod 22-stepper motor 23-encoder 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. 2-3; The needle bar frame drive unit is made up of the stepper motor 22 that the push rod 19, bolt and nut pair, guide rail 8 and the drive screw 2 that are fixedly installed on the drive seat 16 rotate; Drive seat 16 is with guide rail 8 sliding connections, be fixedly connected with nut 3; Push rod and guide rail 8 laterally arrange, and an end of screw rod is fixedly connected with casing 1 through bearing, and the other end holds out against with step motor shaft through screw and is connected.Stepper motor is electrically connected with electric-control system through encoder 23.
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 2 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 stepper motor 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.
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.
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.
Claims (7)
1. computerized emboridering machine needle bar frame drive unit; It is characterized in that: said pin position frame drive unit is made up of stepper motor (22), drive seat (16), push rod (19) and the guide rail (8) of bolt and nut transmission, drive screw turns; Said drive seat (16) is fixedly connected with said nut (3); Said guide rail and said drive seat are slidingly connected, and when said screw rod (2) rotated, said nut drove drive seat and does rectilinear motion; Said push rod is fixedly connected with said drive seat, and said push rod and said guide rail laterally arrange.
2. a kind of computerized emboridering machine needle bar frame drive unit as claimed in claim 1 is characterized in that: said bolt and nut transmission is a ball screw nut transmission.
3. a kind of computerized emboridering machine needle bar frame drive unit as claimed in claim 1, it is characterized in that: described needle bar frame drive unit is provided with casing (1), and said screw rod is rotatably connected through bearing and said casing.
4. a kind of computerized emboridering machine needle bar frame drive unit as claimed in claim 1; It is characterized in that: an end of said screw rod is fixedly connected with said step motor shaft; Said bearing is thrust bearing (6) and rolling bearing (4); The other end of said screw rod is a multidiameter, and said thrust bearing (6) and rolling bearing (4) are arranged on the first step, saidly at thrust bearing and roller bearing shop bearing plate (5) is set; Said bearing plate is fixedly installed on the said casing (1); The diameter of said second step is greater than the internal diameter of rolling bearing (4), and the internal diameter of rolling bearing pressing 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 screw rod (7).
5. a kind of computerized emboridering machine needle bar frame drive unit as claimed in claim 4 is characterized in that: an end of said screw rod is fixedly connected through marking closely with said step motor shaft in radially being provided with.
6. a kind of computerized emboridering machine needle bar frame drive unit as claimed in claim 2, it is characterized in that: the helical pitch of said ball screw is 5mm.
7. a kind of computerized emboridering machine needle bar frame drive unit as claimed in claim 1 is characterized in that: described stepper motor is electrically connected encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220209714XU CN202559084U (en) | 2012-05-10 | 2012-05-10 | Needle bar frame driving device for computerized embroidery machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220209714XU CN202559084U (en) | 2012-05-10 | 2012-05-10 | Needle bar frame driving device for computerized embroidery machine |
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| Publication Number | Publication Date |
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| CN202559084U true CN202559084U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220209714XU Expired - Fee Related CN202559084U (en) | 2012-05-10 | 2012-05-10 | Needle bar frame driving device for computerized embroidery machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019162A (en) * | 2015-08-14 | 2015-11-04 | 孙维 | Multi-head laser cutting embroidery machine |
| CN106637744A (en) * | 2016-12-19 | 2017-05-10 | 绍兴新绣机电科技有限公司 | Hot cutting device of computerized 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 |
| CN108075580A (en) * | 2016-11-14 | 2018-05-25 | 中国科学院沈阳自动化研究所 | A kind of inductive electric energy transmission system underwater testing device and its test method |
| CN109554856A (en) * | 2019-01-30 | 2019-04-02 | 浙江镨美科智能刺绣设备有限公司 | A kind of machine head of embroidery machine of crosspointer driving |
| NL2035030A (en) * | 2022-08-10 | 2024-02-16 | Halliburton Energy Services Inc | Electro-mechanical clutch for downhole tools |
-
2012
- 2012-05-10 CN CN201220209714XU patent/CN202559084U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019162A (en) * | 2015-08-14 | 2015-11-04 | 孙维 | Multi-head laser cutting embroidery machine |
| CN105019162B (en) * | 2015-08-14 | 2017-05-10 | 佛山市盈美佳服装材料有限公司 | Multi-head laser cutting 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 |
| CN108075580A (en) * | 2016-11-14 | 2018-05-25 | 中国科学院沈阳自动化研究所 | A kind of inductive electric energy transmission system underwater testing device and its test method |
| CN108075580B (en) * | 2016-11-14 | 2019-08-09 | 中国科学院沈阳自动化研究所 | A kind of inductive electric energy transmission system underwater testing device and its test method |
| CN106637744A (en) * | 2016-12-19 | 2017-05-10 | 绍兴新绣机电科技有限公司 | Hot cutting device of computerized embroidery machine |
| CN109554856A (en) * | 2019-01-30 | 2019-04-02 | 浙江镨美科智能刺绣设备有限公司 | A kind of machine head of embroidery machine of crosspointer driving |
| NL2035030A (en) * | 2022-08-10 | 2024-02-16 | Halliburton Energy Services Inc | Electro-mechanical clutch for downhole tools |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160425 Address after: 515141 Guangdong Province, Shantou City Chaonan two Ying Zhen Qi Gou Industrial Zone Patentee after: Guangdong Kangshi Industry Co., Ltd. Address before: Jiyang Jianglong Street Industrial Park Village 311800 Zhejiang city of Shaoxing province Zhuji City Patentee before: Zhuji Maya Electric Appliance Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20190510 |
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| CF01 | Termination of patent right due to non-payment of annual fee |