CN202559085U - Needle position signal acquisition device of computerized embroidery machine - Google Patents
Needle position signal acquisition device of computerized embroidery machine Download PDFInfo
- Publication number
- CN202559085U CN202559085U CN2012202081211U CN201220208121U CN202559085U CN 202559085 U CN202559085 U CN 202559085U CN 2012202081211 U CN2012202081211 U CN 2012202081211U CN 201220208121 U CN201220208121 U CN 201220208121U CN 202559085 U CN202559085 U CN 202559085U
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- position signal
- needle position
- potentiometer
- gear
- embroidery
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Abstract
The utility model provides a needle position signal acquisition device of a computerized embroidery machine against the defects of low edge sharpness of an embroidery pattern, non-clear color gradation and low quality of an embroidery because needle position signals acquired by the needle position signal acquisition device of the computerized embroidery machine in the prior art produce backlash. The needle position signal acquisition device comprises a potentiometer and a gear and rack transmission pair, wherein a gear is fixedly arranged on a shaft of the potentiometer, and the gear is meshed with a rack for transmission and connection. By adopting the needle position signal acquisition device of the computerized embroidery machine with the structure provided by the utility model, the needle position backlash value can be controlled below 1 degree, the precision of a needle falling point in each needle position is ensured, the embroidery with high edge sharpness and clear color gradation can be obtained, the transmission of false signals can be prevented, and the occurrence of mechanical accidents can be avoided.
Description
Technical field
The utility model relates to computerized emboridering machine, particularly relates to computer embroidery eedle position signal pickup assembly.
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 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.The effect of pin position signal pickup assembly is to gather pin position signal, and 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, and 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 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 pin position signal pickup assembly of this kind structure, the light idol is arranged on the casing, is driven indirectly by roller gear; Obtain pin position signal, 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, makes that to change pin hour hands position inaccurate; Make the marginal definition of embroidery style 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.
The utility model content
The purpose of the utility model is; The pin position signal of being gathered to pin position signal pickup assembly 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 pin position signal pickup assembly can be provided.
The purpose of the utility model realizes through following technical proposals:
A kind of computer embroidery eedle position signal pickup assembly is made up of potentiometer and rack-and-pinion transmission, and said gear is fixedly installed on the potentiometer shaft, and said gear and said tooth bar are connected by meshing transmission;
The modulus of described rack-and-pinion is 0.5;
Described rack-and-pinion is the involute cylindrical spur gear.
Adopt the pin position signal pickup assembly of the utility model structure; Its signal pickup assembly is made up of rack-and-pinion and potentiometer; Gear is fixedly installed on the potentiometer shaft, can potentiometer be arranged on needle bar frame drive seat or the push rod, and the tooth bar that is engaged with is fixedly installed on the casing; Perhaps potentiometer is fixedly installed on the casing, and tooth bar is fixedly installed on the drive seat, as the push rod that connects needle bar frame; Like this, when drive seat was done the linear reciprocation displacement, the rectilinear motion of drive seat was converted into the gyration of potentiometer shaft during colour changing by rack-and-pinion; Make the potentiometer shaft rotation; The anglec of rotation through potentiometer shaft produces pin position signal, can pin position return difference value be controlled at below 1 °, and the biased difference of corresponding air line distance pin is below 0.0138mm; Guarantee the accuracy of every pin position needle falling point; The marginal definition of embroidery style is high, color is well arranged, has directly promoted the embroidery quality effectively, and the operating efficiency of one-piece computer embroidery machine and quality scale have promoted a new step.And because being reciprocal straight-line displacement with drive seat, potentiometer directly changes into pin position signal, so when the stop motion of failover drive seat, potentiometer no longer sends pin position signal, has prevented sending of glitch, and the hidden danger of having avoided mechanical accident to take place.
Description of drawings
Fig. 1 is the utility model computer embroidery eedle position signal pickup assembly example structure sketch map;
Fig. 2 is that the utility model computer embroidery eedle position signal pickup assembly uses the example structure sketch map on computerized emboridering machine;
Fig. 3 is that the utility model computer embroidery eedle position signal pickup assembly uses another example structure sketch map on computerized emboridering machine.
Description of reference numerals
1-casing 13-potentiometer fixed mount 14-gear 15-potentiometer 16-drive seat 17-tooth bar fixed mount 19-push rod 20-tooth bar 24-potentiometer shaft
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to describe:
As shown in Figure 1, transmission and potentiometer 15 that the pin position signal pickup assembly of the utility model is made up of gear 14 and tooth bar 20 are formed, and gear is fixedly installed on the potentiometer shaft 24.During use, can potentiometer 15 be fixedly installed on the drive seat 16 through potentiometer fixed mount 13, tooth bar is fixed on the casing 1 through tooth bar fixed mount 17, and wheel and rack is connected with a joggle, and potentiometer is connected with the electric-control system light current electric wire of computerized emboridering machine.Potentiometer also can be fixedly installed on the push rod of computerized emboridering machine.
For making things convenient for the position of engagement of adjusting gear 14 and tooth bar 20, elongated slot waist hole all is set on tooth bar fixed mount and the potentiometer fixed mount, bolt is fixed on tooth bar on the casing through elongated slot waist hole, and potentiometer is fixed on the drive seat.
When work; The linear reciprocation displacement takes place in drive seat 16 under the driving of needle bar frame drive unit; Thereby drive the potentiometer 15 that is fixed together with it synchronous shift takes place; Because it is motionless that tooth bar 20 is fixed on the casing, the gear 14 that is engaged with just rotates, and gear driven potentiometer shaft 24 rotates; Be converted into the gyration of potentiometer shaft to the rectilinear motion of push rod and drive seat by the rack-and-pinion kinematic pair like this, potentiometer 15 is obtained through the anglec of rotation of potentiometer shaft and send pin position signal to electric-control system.After the electric-control system primary control program was judged the pin position, the control head was 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.
Also can potentiometer 15 be fixedly installed on the casing 1 through potentiometer fixed mount 13, tooth bar is fixed on double as push rod on the drive seat 16 through tooth bar fixed mount 17, and wheel and rack is connected with a joggle, and potentiometer is connected with the electric-control system light current electric wire of computerized emboridering machine.
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.
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 rack-and-pinion transmission rectilinear motion that this and push rod of potentiometer is synchronous transforms into the gyration of potentiometer shaft, so pin position backlash phenomena are effectively solved.
Claims (3)
1. computer embroidery eedle position signal pickup assembly; It is characterized in that; Be made up of potentiometer (15) and rack-and-pinion transmission, said gear (14) is fixedly installed on the potentiometer shaft (24), and said gear (14) is connected by meshing transmission with said tooth bar (20).
2. computer embroidery eedle according to claim 1 position signal pickup assembly is characterized in that the modulus of described rack-and-pinion is 0.5.
3. computer embroidery eedle according to claim 1 position signal pickup assembly is characterized in that described rack-and-pinion is the involute cylindrical spur gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202081211U CN202559085U (en) | 2012-05-10 | 2012-05-10 | Needle position signal acquisition device of computerized embroidery machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202081211U CN202559085U (en) | 2012-05-10 | 2012-05-10 | Needle position signal acquisition device of computerized embroidery machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202559085U true CN202559085U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202081211U Expired - Fee Related CN202559085U (en) | 2012-05-10 | 2012-05-10 | Needle position signal acquisition device of computerized embroidery machine |
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| CN (1) | CN202559085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660845A (en) * | 2012-05-10 | 2012-09-12 | 诸暨玛雅电器机械有限公司 | Stitch position signal acquisition device for computer embroidery machine |
-
2012
- 2012-05-10 CN CN2012202081211U patent/CN202559085U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660845A (en) * | 2012-05-10 | 2012-09-12 | 诸暨玛雅电器机械有限公司 | Stitch position signal acquisition device for computer embroidery machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160422 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 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |