阅读说明：本技术 一种绣花机绣线张力控制系统、方法 (A kind of embroidery machine embroider line tension control system, method ) 是由 陈天龙 陈天池 方狄永 蔡洁钟 于 2019-09-02 设计创作，主要内容包括：一种绣花机绣线张力控制系统、方法,属于绣花机领域。系统包括主控制器、夹线张力装置、主挑线杆、线张力检测单元、具有辅助挑线杆和驱动件的辅助挑线机构；辅助挑线机构设于夹线张力装置和主挑线杆间；绣线自夹线张力装置引出依次经辅助挑线杆、主挑线杆连接至绣针；在主挑线杆放线过程中,主控制器控制辅助挑线杆进行收放线动作至完成回位,以配合主挑线杆放线并确保放线线量满足实际所需放线线量；在主挑线杆收紧线过程中,线张力检测单元检测在夹线张力装置引出线至主挑线杆引入线之间绣线的张力,主控制器据此调节夹线张力装置的张力,使得收紧线时张力恒定。本发明自动化控制绣花过程中的绣线张力,控制放线线量,提高绣作适应性和品质。(A kind of embroidery machine embroider line tension control system, method, belong to embroidery machine field.System includes master controller, clamp tensioner, main thread take-up tension lever, line tension detection unit, the auxiliary Yarn taking-up mechanism with auxiliary thread take-up tension lever and actuator；Yarn taking-up mechanism is assisted to be set between clamp tensioner and main thread take-up tension lever；Embroider line draws from clamp tensioner and is successively connected to embroidered needle through auxiliary thread take-up tension lever, main thread take-up tension lever；During main thread take-up tension lever unwrapping wire, main controller controls auxiliary thread take-up tension lever carries out retractable cable and acts to return is completed, to cooperate main thread take-up tension lever unwrapping wire and ensure that pay-off wire amount meets actually required pay-off wire amount；In main thread take-up tension lever tightening line process, for the detection of line tension detection unit in clamp tensioner lead-out wire to the tension of embroider line between main thread take-up tension lever lead-in, master controller adjusts the tension of clamp tensioner accordingly, so that constant tension when tightening line.Embroider line tension in automation control embroidering process of the present invention controls pay-off wire amount, improves embroidery adaptability and quality.)

1. a kind of embroidery machine embroider line tension control system, including master controller, clamp tensioner, main thread take-up tension lever, feature exist In, further include line tension detection unit and with auxiliary thread take-up tension lever and actuator auxiliary Yarn taking-up mechanism；The auxiliary take-up Mechanism is set to the position between clamp tensioner and main thread take-up tension lever；Embroider line is drawn from clamp tensioner and is successively chosen through auxiliary Line bar, main thread take-up tension lever are connected to embroidered needle；During main thread take-up tension lever unwrapping wire, the main controller controls auxiliary thread take-up tension lever is received Unwrapping wire movement is until complete to return to original position, to cooperate main thread take-up tension lever unwrapping wire and ensure that pay-off wire amount meets actually required pay-off wire Amount；In main thread take-up tension lever tightening line process, the line tension detection unit is for detecting in clamp tensioner lead-out wire to master The tension of embroider line between thread take-up tension lever lead-in, the tension detected value that the master controller obtains in real time according to line tension detection unit The tension of clamp tensioner is adjusted, so that constant tension when tightening line.

2. a kind of embroidery machine embroider line tension control system according to claim 1, which is characterized in that the auxiliary thread take-up tension lever Retractable cable line amount=| pay-off wire amount needed for main thread take-up tension lever standard pay-off wire amount-practical unwrapping wire |.

3. a kind of embroidery machine embroider line tension control system according to claim 1, which is characterized in that the master controller packet It includes:

Line amount control module, for presetting the retractable cable line amount of auxiliary thread take-up tension lever according to embroidered pattern；

Unwrapping wire control module, when recognizing main thread take-up tension lever and starting unwrapping wire, according to the receipts of the auxiliary thread take-up tension lever of line amount control module Pay-off wire amount, control auxiliary thread take-up tension lever carry out retractable cable movement until completing to return to original position；

Tension threshold setup module is filled for being preset in main thread take-up tension lever tightening line process according to embroidered pattern in clamp tension Set the tension threshold of lead-out wire to embroider line between main thread take-up tension lever lead-in；

Take-up control module, when recognizing main thread take-up tension lever and starting to tighten line and line tension detection unit is detected in clamp tension When the tension of device lead-out wire to embroider line between main thread take-up tension lever lead-in reaches tension threshold, the tension of clamp tensioner is controlled Less than tension threshold.

4. a kind of embroidery machine embroider line tension control system according to claim 1, which is characterized in that

The master controller includes:

Line amount control module, for presetting the retractable cable line amount of auxiliary thread take-up tension lever according to embroidered pattern；

Unwrapping wire control module, when recognizing main thread take-up tension lever and starting unwrapping wire, according to the receipts of the auxiliary thread take-up tension lever of line amount control module Pay-off wire amount, control auxiliary thread take-up tension lever carry out retractable cable movement until completing to return to original position；

Tension threshold setup module is filled for being preset in main thread take-up tension lever tightening line process according to embroidered pattern in clamp tension Set the tension threshold of lead-out wire to embroider line between main thread take-up tension lever lead-in；

Take-up control module, when recognizing main thread take-up tension lever and starting to tighten line and line tension detection unit is detected in clamp tension When the tension of device lead-out wire to embroider line between main thread take-up tension lever lead-in is greater than tension threshold, by the tension tune of clamp tensioner As low as tension setting value；When recognizing main thread take-up tension lever and starting to tighten line and line tension detection unit is detected and is filled in clamp tension When the tension for setting lead-out wire to embroider line between main thread take-up tension lever lead-in is less than tension threshold, the tension of clamp tensioner is tuned up To tension setting value.

5. a kind of embroidery machine embroider line tension control system according to claim 1, which is characterized in that the master controller packet It includes:

Line amount control module, for presetting the retractable cable line amount of auxiliary thread take-up tension lever according to embroidered pattern；

Unwrapping wire control module, when recognizing main thread take-up tension lever and starting unwrapping wire, according to the receipts of the auxiliary thread take-up tension lever of line amount control module Pay-off wire amount, control auxiliary thread take-up tension lever carry out retractable cable movement until completing to return to original position；

Tension threshold setup module is filled for being preset in main thread take-up tension lever tightening line process according to embroidered pattern in clamp tension Set the tension threshold of lead-out wire to embroider line between main thread take-up tension lever lead-in；

Take-up control module, when recognizing main thread take-up tension lever and starting to tighten line and line tension detection unit is detected in clamp tension When the tension of device lead-out wire to embroider line between main thread take-up tension lever lead-in is greater than tension threshold, control auxiliary thread take-up tension lever is moved downward Unwrapping wire, to balance line tension；When tightening under constant line tension after a certain period of time, the tension of control clamp tensioner, which is less than, to be opened Force threshold, and control auxiliary thread take-up tension lever and return to original position.

6. a kind of embroidery machine embroider line tension control system according to claim 3 or 4 or 5, which is characterized in that the line amount Control module includes multiple needle positions control unit, and each needle position control unit is stored with the take-up of the auxiliary thread take-up tension lever of corresponding needle position Line amount or pay-off wire amount.

7. a kind of embroidery machine embroider line tension control system according to claim 3 or 4 or 5, which is characterized in that the tension Threshold setting module includes multiple needle positions threshold cell, and each needle position threshold cell is stored with filling in clamp tension for corresponding needle position Set the tension threshold of lead-out wire to embroider line between main thread take-up tension lever lead-in.

8. a kind of embroidery machine embroider line tension control system according to claim 3 or 4 or 5, which is characterized in that the master control Device processed further includes clamp tension setup module, is tightened for presetting clamp tensioner according to embroidered pattern in main thread take-up tension lever Clamp tension value in line process, the clamp tension value are greater than the tension threshold.

9. a kind of embroidery machine embroider line tension control system according to claim 3 or 4 or 5, which is characterized in that the master control Device processed further includes that line tension adjusts unit, for storing the tension setting value of clamp tensioner corresponding to each needle position.

10. a kind of embroidery machine embroider line tension control system according to claim 5, which is characterized in that the master controller Further include:

Unwrapping wire storage unit, for storing main thread take-up tension lever in tightening line process, each needle position is corresponding in clamp tensioner Lead-out wire to embroider line tension between main thread take-up tension lever lead-in and established standards line tightening tension reaches unanimously, and corresponding auxiliary is chosen Line bar moves downward the line amount of unwrapping wire；

Time setting unit, for storing the time of constant line tension tightening corresponding to each needle position.

11. a kind of embroidery machine embroider line tension control system according to claim 1, which is characterized in that the auxiliary take-up The surface of vertical direction where bar is located at the main thread take-up tension lever.

12. a kind of embroidery machine embroider line tension control system according to claim 1, which is characterized in that the line tension inspection Surveying unit includes tension sensor.

13. a kind of embroidery machine embroider line tension control method, which is characterized in that for including master controller, clamp tensioner, line Tension detection unit, the embroidery machine embroider line tension control system for assisting Yarn taking-up mechanism, main thread take-up tension lever；The auxiliary Yarn taking-up mechanism is set It is placed between the clamp tensioner and the main thread take-up tension lever；The auxiliary Yarn taking-up mechanism includes auxiliary thread take-up tension lever and driving Part；Method includes:

When the master controller detects that the main thread take-up tension lever starts unwrapping wire, controls the auxiliary thread take-up tension lever and carry out retractable cable movement Until completing to return to original position, to cooperate main thread take-up tension lever unwrapping wire and ensure that pay-off wire amount meets actually required pay-off wire amount；

The master controller detects when the main thread take-up tension lever starts to tighten line and line tension detection unit is detected in clamp When the tension of power device lead-out wire to embroider line between main thread take-up tension lever lead-in meets tension adjustment condition, clamp tensioner is adjusted Tension so that tightening line when constant tension.

14. a kind of embroidery machine embroider line tension control method according to claim 13, which is characterized in that the tension adjustment Condition are as follows: reach tension threshold in the tension of clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in；The master The tension that controller controls clamp tensioner is less than tension threshold.

15. a kind of embroidery machine embroider line tension control method according to claim 13, which is characterized in that the tension adjustment Condition are as follows: be more than or less than tension threshold in the tension of clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in； When the tension in clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in is greater than tension threshold, by clamp tension The tension of device is turned down to tension setting value；When recognizing main thread take-up tension lever and starting to tighten line and line tension detection unit detects When the tension of clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in is less than tension threshold, clamp tension is filled The tension set is tuned up to tension setting value.

16. a kind of embroidery machine embroider line tension control method according to claim 13, which is characterized in that the tension adjustment Condition are as follows: be greater than tension threshold in the tension of clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in；The master Controller control auxiliary thread take-up tension lever moves downward unwrapping wire, to balance line tension, when being tightened after a certain period of time under constant line tension, The tension for controlling clamp tensioner is less than tension threshold, while main controller controls auxiliary thread take-up tension lever returns to original position.

17. a kind of embroidery machine embroider line tension control method described in 4 or 15 or 16 according to claim 1, which is characterized in that method Further include: before embroidery machine work, the retractable cable line amount of auxiliary thread take-up tension lever is preset according to embroidered pattern in master controller And in clamp tensioner lead-out wire to the tension threshold of embroider line between main thread take-up tension lever lead-in in main thread take-up tension lever tightening line process.

18. a kind of embroidery machine embroider line tension control method described in 4 or 15 or 16 according to claim 1, which is characterized in that method Further include: before embroidery machine work, clamp tensioner is preset in main thread take-up tension lever according to embroidered pattern in master controller The clamp tension value in line process is tightened, the clamp tension value is greater than the tension threshold.

19. a kind of embroidery machine embroider line tension control method described in 4 or 15 or 16 according to claim 1, which is characterized in that method Further include: before embroidery machine work, preset in main thread take-up tension lever tightening line process in master controller according to embroidered pattern, often The tension setting value of clamp tensioner corresponding to a needle position.

20. a kind of embroidery machine embroider line tension control method according to claim 16, which is characterized in that method further include: Before embroidery machine work, main thread take-up tension lever is preset in tightening line process according to embroidered pattern in master controller, Mei Gezhen Position is corresponding to tighten tension in clamp tensioner lead-out wire to embroider line tension between main thread take-up tension lever lead-in and established standards line Reach consistent, corresponding auxiliary thread take-up tension lever moves downward the line amount of unwrapping wire；And preset perseverance corresponding to each needle position The time of alignment tension tightening.

21. a kind of embroidery machine embroider line tension control method according to claim 13, which is characterized in that the auxiliary take-up The retractable cable line amount of bar=| pay-off wire amount needed for main thread take-up tension lever unwrapping wire normal line amount-practical unwrapping wire |.

22. a kind of embroidery machine embroider line tension control method according to claim 13, which is characterized in that the main thread take-up tension lever The period of tightening line process is that baseline and upper thread interweave the period started to when taking out tight in fabric bottom.

Technical field

The invention belongs to embroidery machine technical field more particularly to a kind of embroidery machine line tension control systems, method.

Background technique

Embroider line on embroidery machine is drawn from coil holder successively reaches embroidered needle by tension table, thread take-up tension lever.During embroidery machine works, The tension of embroider line is the elasticity of embroider line, is usually controlled by tension table and thread take-up tension lever.Tension table generally uses mechanical tension control Structure processed, tension regulator of the towel embroidery machine as disclosed in utility model patent CN201990846U with cord grip lead to Line nut was overregulated to adjust the tension of embroider line.It needs in advance however, line nut was utilized to adjust tension according to pre-set tension Value carries out manually tightening fixation, and frictional force and thickness are all changing when fabric embroidery, and there is also variations for linear elasticity.For This, can not be carried out according to practical embroidery process flexibly, accurately tension adjustment, and when tension value changes next time, also Need again manual adjustment good, adjusting is inconvenient, and embroidery production efficiency is low.In addition, the effect of thread take-up tension lever is in stitching when work In each duty cycle of forming process, control thread take-up tension lever is supplied and recycles suitable upper thread, and makes the intertwined point in face, baseline Taken out among sewing it is tight, then from extracting upper thread required for next stitching in a ball of string.Embroidered needle initial position from above fabric is opened Beginning knit stitch, until moving to below fabric, back stitching is to initial position after minimum point, and the line amount of required embroider line is 2L at this time, and L is to embroider The needle stroke distances of initial position to minimum point below fabric from above fabric.Due to embroidered pattern difference, embroider line is different, causes The difference of line amount needed for embroidery process, and thread take-up tension lever does not do accurate tension force in retractable cable, on the one hand without Method accurately controls pay-off wire amount, on the other hand may tighten line tension and cause to break.

Under normal circumstances, thread take-up tension lever unwrapping wire, take-up stitching need to follow sine curve shown in Fig. 1, thread take-up tension lever from curve most Start unwrapping wire at high point.When unwrapping wire to a certain degree after, during thread take-up tension lever rises from 0 degree of -30 degree, stitching starts to tighten, thread take-up tension lever From 30 degree rise to 60 degree during, thread take-up tension lever tightening force becomes larger, once thread take-up tension lever tensile force is greater than the clamp of tension table When power, embroider line is pulled down from tension table by thread take-up tension lever, then carries out the embroidering work of subsequent embroidered needle.And in practical embroidering process, Due to embroidered pattern difference, frictional force, thickness, line elastic force change when embroider line is different and fabric is embroidered, so that real Pay-off wire amount needed for border can not be matched with the pay-off wire amount (herein referred as standard pay-off wire amount) of thread take-up tension lever under normal circumstances, and be made The case where must tightening line process there are tightening force is excessive or not equal enough the tightening forces of tightening force persistently change.Unwrapping wire is a dynamic mistake There are different requirements in journey, each stage in the process to pay-off wire amount, if standard pay-off wire amount is greater than actually required pay-off wire amount, If standard pay-off wire amount is less than actually required pay-off wire amount, there may be different pay-off wire amount mismatch cases for whole process. Tightening line is also dynamic process, and tightening force persistently increases, and will cause that cloth contraction is excessive, and embroidery is not full, and easily broken string.This A process not only needs to control the pay-off wire amount of thread take-up tension lever, it is also necessary to and tension table and thread take-up tension lever cooperate, once tensile force is matched It is improper to close, and embroider line tensioning portion is too tight or too loose, influences quality of embroidering.

Line tension control method, device and the storage that application for a patent for invention CN109402892A discloses embroidery machine needle position are situated between Matter, and specifically disclosing line tension control method includes controlling equipment according to the needle position in colour changing code when going to colour changing code Corresponding first thread tension value, it is determined whether need that the thread tension value of embroidery machine is adjusted, if desired to the line of embroidery machine Tension value is adjusted, then controls embroidery machine pause embroidery process, and send to adjust to the wire tension adjustment unit of embroidery machine and refer to It enabling, regulating command is used to indicate wire tension adjustment unit and the thread tension value of embroidery machine needle position is adjusted to the first thread tension value, from Dynamicization controls the line tension of embroidery machine needle position, improves embroidery production efficiency, ensure that embroidery quality.The invention solves machinery Formula adjusts the problem of inconvenience and low efficiency of embroider line tension, and different thread tension values can be arranged according to needle position difference.But the hair The bright general tension range being only based on by adjusting each needle bit line tension-adjusting gear in controller collection, and unresolved stitching The problem of line tension size and guarantee line tension when tightening is constant, does not also solve the control of line amount.

Summary of the invention

In view of the problems of the existing technology the present invention, proposes a kind of embroidery machine embroider line tension control system, method, energy Automation control embroider line tension, it is contemplated that the variable that tension is influenced in entire embroidering process, it can be according to entire embroidering process, difference Embroider line, different embroidery pattern flexible modulation embroider line tension, control line amount improve embroidery adaptability and embroidery quality.

The technical scheme is that:

A kind of embroidery machine embroider line tension control system, including the detection of master controller, clamp tensioner, main thread take-up tension lever, line tension Unit, the auxiliary Yarn taking-up mechanism with auxiliary thread take-up tension lever and actuator；The auxiliary Yarn taking-up mechanism is set to clamp tensioner Position between main thread take-up tension lever；Embroider line draws from clamp tensioner and is successively connected to embroidery through auxiliary thread take-up tension lever, main thread take-up tension lever Needle；During main thread take-up tension lever unwrapping wire, the main controller controls auxiliary thread take-up tension lever carries out retractable cable movement until completing to return to It is in situ, to cooperate main thread take-up tension lever unwrapping wire and ensure that pay-off wire amount meets actually required pay-off wire amount；Line mistake is tightened in main thread take-up tension lever Cheng Zhong, the line tension detection unit is for detecting in clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in Tension, the tension detected value that the master controller obtains in real time according to line tension detection unit come adjust clamp tensioner Power, so that constant tension when tightening line.

The present invention is using existing thread take-up tension lever as main thread take-up tension lever, and in addition setting auxiliary thread take-up tension lever cooperates the unwrapping wire of main thread take-up tension lever Work, and line tension detection unit is set in the detection of tightening line stage in clamp tensioner lead-out wire to main thread take-up tension lever lead-in Between embroider line tension, to control the tension of clamp tensioner.Main thread take-up tension lever is executed according to the working principle of existing embroidery machine The work of its retractable cable, master controller work according to main thread take-up tension lever and carry out differential tension control in unwrapping wire stage and tightening line stage. Existing electric drive tensioner can be used in the clamp tensioner, and difference is that clamp tensioner can be in tightening line rank Section is adjusted in real time by master controller.The present invention can be adjusted in real time according to the differential tension demand in embroidering process, can be precisely Pay-off wire amount is controlled, embroider line efficiency and embroidery quality are improved.

Preferably, the retractable cable line amount of the auxiliary thread take-up tension lever=| main thread take-up tension lever standard pay-off wire amount-practical unwrapping wire institute Need pay-off wire amount |.

Preferably, the master controller includes:

Line amount control module, for presetting the retractable cable line amount of auxiliary thread take-up tension lever according to embroidered pattern；

Unwrapping wire control module, when recognizing main thread take-up tension lever and starting unwrapping wire, according to the receipts of the auxiliary thread take-up tension lever of line amount control module Pay-off wire amount, control auxiliary thread take-up tension lever carry out retractable cable movement until completing to return to original position；

Tension threshold setup module is filled for being preset in main thread take-up tension lever tightening line process according to embroidered pattern in clamp tension Set the tension threshold of lead-out wire to embroider line between main thread take-up tension lever lead-in；

Take-up control module, when recognizing main thread take-up tension lever and starting to tighten line and line tension detection unit is detected in clamp tension When the tension of device lead-out wire to embroider line between main thread take-up tension lever lead-in reaches tension threshold, the tension of clamp tensioner is controlled Less than tension threshold.

Preferably, the master controller includes:

Line amount control module, for presetting the retractable cable line amount of auxiliary thread take-up tension lever according to embroidered pattern；

Unwrapping wire control module, when recognizing main thread take-up tension lever and starting unwrapping wire, according to the receipts of the auxiliary thread take-up tension lever of line amount control module Pay-off wire amount, control auxiliary thread take-up tension lever carry out retractable cable movement until completing to return to original position；

Tension threshold setup module is filled for being preset in main thread take-up tension lever tightening line process according to embroidered pattern in clamp tension Set the tension threshold of lead-out wire to embroider line between main thread take-up tension lever lead-in；

Take-up control module, when recognizing main thread take-up tension lever and starting to tighten line and line tension detection unit is detected in clamp tension When the tension of device lead-out wire to embroider line between main thread take-up tension lever lead-in is greater than tension threshold, by the tension tune of clamp tensioner As low as tension setting value；When recognizing main thread take-up tension lever and starting to tighten line and line tension detection unit is detected and is filled in clamp tension When the tension for setting lead-out wire to embroider line between main thread take-up tension lever lead-in is less than tension threshold, the tension of clamp tensioner is tuned up To tension setting value.

Preferably, the master controller includes:

Line amount control module, for presetting the retractable cable line amount of auxiliary thread take-up tension lever according to embroidered pattern；

Unwrapping wire control module, when recognizing main thread take-up tension lever and starting unwrapping wire, according to the receipts of the auxiliary thread take-up tension lever of line amount control module Pay-off wire amount, control auxiliary thread take-up tension lever carry out retractable cable movement until completing to return to original position；

Tension threshold setup module is filled for being preset in main thread take-up tension lever tightening line process according to embroidered pattern in clamp tension Set the tension threshold of lead-out wire to embroider line between main thread take-up tension lever lead-in；

Take-up control module, when recognizing main thread take-up tension lever and starting to tighten line and line tension detection unit is detected in clamp tension When the tension of device lead-out wire to embroider line between main thread take-up tension lever lead-in is greater than tension threshold, control auxiliary thread take-up tension lever is moved downward Unwrapping wire, to balance line tension；When tightening under constant line tension after a certain period of time, the tension of control clamp tensioner, which is less than, to be opened Force threshold, and control auxiliary thread take-up tension lever and return to original position.

Preferably, the line amount control module includes multiple needle positions control unit, each needle position control unit is stored with The take-up line amount or pay-off wire amount of the auxiliary thread take-up tension lever of corresponding needle position.

Preferably, the tension threshold setup module includes multiple needle positions threshold cell, each needle position threshold cell is deposited Contain the tension threshold in clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in of corresponding needle position.

Preferably, the master controller further includes clamp tension setup module, for being preset according to embroidered pattern Clamp tension value of the clamp tensioner in main thread take-up tension lever tightening line process, the clamp tension value are greater than the tension threshold Value.

Preferably, the master controller further includes tension adjustment unit, for storing clamp corresponding to each needle position The tension setting value of power device.

Preferably, the master controller further include:

Unwrapping wire storage unit, for storing main thread take-up tension lever in tightening line process, each needle position is corresponding in clamp tensioner Lead-out wire to embroider line tension between main thread take-up tension lever lead-in and established standards line tightening tension reaches unanimously, and corresponding auxiliary is chosen Line bar moves downward the line amount of unwrapping wire；

Time setting unit, for storing the time of constant line tension tightening corresponding to each needle position.

Preferably, the auxiliary thread take-up tension lever is located at the surface of the main thread take-up tension lever place vertical direction.

Preferably, the line tension detection unit includes tension sensor.

A kind of embroidery machine embroider line tension control method, for single including master controller, clamp tensioner, line tension detection Member, the embroidery machine embroider line tension control system for assisting Yarn taking-up mechanism, main thread take-up tension lever；The auxiliary Yarn taking-up mechanism is set to the folder Between line tension device and the main thread take-up tension lever；The auxiliary Yarn taking-up mechanism includes auxiliary thread take-up tension lever and actuator；Method includes:

When the master controller detects that the main thread take-up tension lever starts unwrapping wire, controls the auxiliary thread take-up tension lever and carry out retractable cable movement Until completing to return to original position, to cooperate main thread take-up tension lever unwrapping wire and ensure that pay-off wire amount meets actually required pay-off wire amount；

The master controller detects when the main thread take-up tension lever starts to tighten line and line tension detection unit is detected in clamp When the tension of power device lead-out wire to embroider line between main thread take-up tension lever lead-in meets tension adjustment condition, clamp tensioner is adjusted Tension so that tightening line when constant tension.

Preferably, the tension adjustment condition are as follows: in clamp tensioner lead-out wire between main thread take-up tension lever lead-in The tension of embroider line reaches tension threshold；The tension of the main controller controls clamp tensioner is less than tension threshold.

Preferably, the tension adjustment condition are as follows: in clamp tensioner lead-out wire between main thread take-up tension lever lead-in The tension of embroider line is more than or less than tension threshold；When in clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in When tension is greater than tension threshold, the tension of clamp tensioner is turned down to tension setting value；Start recognizing main thread take-up tension lever When tightening line and line tension detection unit is detected in clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in When tension is less than tension threshold, the tension of clamp tensioner is tuned up to tension setting value.

Preferably, the tension adjustment condition are as follows: in clamp tensioner lead-out wire between main thread take-up tension lever lead-in The tension of embroider line is greater than tension threshold；The main controller controls auxiliary thread take-up tension lever moves downward unwrapping wire, to balance line tension, when It is tightened under constant line tension after a certain period of time, the tension of control clamp tensioner is less than tension threshold, while master controller Control auxiliary thread take-up tension lever returns to original position.

Preferably, method further include: before embroidery machine work, preset in master controller according to embroidered pattern auxiliary It helps in the retractable cable line amount and main thread take-up tension lever tightening line process of thread take-up tension lever and is introduced in clamp tensioner lead-out wire to main thread take-up tension lever The tension threshold of embroider line between line.

Preferably, method further include: before embroidery machine work, preset folder according to embroidered pattern in master controller Clamp tension value of the line tension device in main thread take-up tension lever tightening line process, the clamp tension value are greater than the tension threshold.

Preferably, method further include: before embroidery machine work, preset master according to embroidered pattern in master controller When thread take-up tension lever starts to tighten line, the tension setting value of clamp tensioner corresponding to each needle position.

Preferably, method further include: before embroidery machine work, preset master according to embroidered pattern in master controller When thread take-up tension lever starts to tighten line, each needle position is corresponding in clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in Tension and established standards line tightening tension reach unanimously, and corresponding auxiliary thread take-up tension lever moves downward the line amount of unwrapping wire；And it is pre- The time of constant line tension tightening corresponding to each needle position is first set.

Preferably, the retractable cable line amount of the auxiliary thread take-up tension lever=| main thread take-up tension lever unwrapping wire normal line amount-practical unwrapping wire institute Need pay-off wire amount |.

Preferably, the period of the main thread take-up tension lever tightening line process be baseline and upper thread fabric bottom interweave start to Period when taking out tight.

The invention has the following advantages:

A kind of embroidery machine line tension control system of the present invention, method, can embroider line tension in automation control embroidering process, control Pay-off wire amount improves embroidery adaptability and embroidery quality.

Detailed description of the invention

Fig. 1 is the stitching curve of main thread take-up tension lever and the stitching curve comparison figure of rotating shuttle；

Fig. 2 is a kind of structural schematic diagram of embroidery machine embroider line tension control system of the present invention.

Specific embodiment

Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.

Such as Fig. 2, a kind of embroidery machine embroider line tension control system, including master controller (not shown), clamp tension dress Set 1, main thread take-up tension lever 2, line tension detection unit, the auxiliary Yarn taking-up mechanism with auxiliary thread take-up tension lever 3 and actuator 4.The auxiliary Yarn taking-up mechanism is set to the position between clamp tensioner 1 and main thread take-up tension lever 2.Embroider line 5 is drawn successively from clamp tensioner 1 Embroidered needle is connected to through auxiliary thread take-up tension lever 3, main thread take-up tension lever 2.The actuator 4 can be rotating electric machine, for controlling auxiliary take-up Bar 3 moves.

The main thread take-up tension lever 2 is the thread take-up tension lever on existing embroidery machine, and such as main thread take-up tension lever 2 can be selected in the auxiliary thread take-up tension lever 3 The thread take-up tension lever of structure or the mechanism for being able to achieve take-up effect.The setting position of the auxiliary thread take-up tension lever need to meet the following conditions: auxiliary Help thread take-up tension lever in situ when, acted without any retractable cable, do not influence the movement of main 2 retractable cable of thread take-up tension lever；Assist thread take-up tension lever into When row is moved downward or moved upwards, unwrapping wire or take-up movement can be completed.Preferably, the auxiliary thread take-up tension lever is located at the master The surface of vertical direction where thread take-up tension lever.The position of the auxiliary thread take-up tension lever is not limited on the vertical direction of main thread take-up tension lever, It can any position between clamp tensioner and main thread take-up tension lever.The actuator is set at the auxiliary thread take-up tension lever.

In order to be precisely controlled retractable cable amount and obtain line tension, using Fig. 2 as example, can be set below auxiliary thread take-up tension lever 3 It sets transition pulley or crosses line stake 6, transition pulley is also provided with below main thread take-up tension lever or crosses line stake 6, embroider line 5 is through clamp tensioner 1 After extraction, first passes through transition pulley or cross line stake 6 using auxiliary thread take-up tension lever 3, transition pulley or cross line stake and main thread take-up tension lever 2. It is above-mentioned to cross line pulley or cross the settable one or more of line stake, it may be disposed between auxiliary both thread take-up tension lever and main thread take-up tension lever line And/or between auxiliary both thread take-up tension lever and clamp tensioner line, it is not limited to position shown in above-mentioned Fig. 2 and quantity thus.

The line tension detection unit is embroidered in clamp tensioner lead-out wire between main thread take-up tension lever lead-in for detecting The tension of line.The line tension detection unit includes tension sensor, can directly detect line tension.Alternatively, the line tension Detection unit includes tension transfer structure, tension detector, and line tension is transferred to tension detector by tension transfer structure, after And line tension was detected by tension detector indirectly.The tension transfer structure can be elastic component, such as spring, tension detector It can be the detector for converting spring deformation amount to corresponding tension；The tension transfer structure can also be rod-like structure, Force detector can be the detector for converting the pressure of rod-like structure transmitting to corresponding tension.

By taking the tension sensor as an example, the tension sensor may be provided in clamp tensioner lead-out wire to main thread take-up tension lever Any position of embroider line between lead-in.Under an embodiment, the tension sensor can be set at auxiliary thread take-up tension lever 3, be used Mistake line tension on detection auxiliary thread take-up tension lever.Under yet other embodiments, the tension sensor can be set to clamp tension and fill Lead-out wire is set to the transition pulley between auxiliary 3 lead-in of thread take-up tension lever or is crossed at line stake, for detecting line pulley or crossing line stake On mistake line tension.Under yet other embodiments, the tension sensor can be set to auxiliary 3 lead-out wire of thread take-up tension lever to main thread take-up tension lever At transition pulley or mistake line stake between lead-in, for detecting line pulley or crossing the mistake line tension in line stake.

By taking the tension transfer structure and tension detector as an example, the tension transfer structure may be provided in clamp tensioner Lead-out wire to any position of embroider line between main thread take-up tension lever lead-in, the tension detector is set to tension transfer structure side, The tension of transmitting can be directly received.The tension transfer structure can be set at auxiliary thread take-up tension lever 3, or set on clamp Power device lead-out wire is to the transition pulley between auxiliary 3 lead-in of thread take-up tension lever or crosses at line stake, or draws set on auxiliary thread take-up tension lever 3 Outlet is to the transition pulley between main thread take-up tension lever lead-in or crosses at line stake.

Main 2 working condition of thread take-up tension lever of master controller real-time monitoring, and carried out not for unwrapping wire stage and take-up stage Same tension force.During main 2 unwrapping wire of thread take-up tension lever, the main controller controls auxiliary thread take-up tension lever carries out retractable cable movement, To cooperate main thread take-up tension lever unwrapping wire and ensure that pay-off wire amount meets actually required pay-off wire amount.Wherein, the receipts of the auxiliary thread take-up tension lever Pay-off wire amount=| pay-off wire amount needed for main thread take-up tension lever standard pay-off wire amount-practical unwrapping wire |.Fig. 1 shows that main thread take-up tension lever is practical to be put Line simulation curve 1,2, the stitching curve of the stitching curve of main thread take-up tension lever, rotating shuttle.Visible main thread take-up tension lever standard pay-off wire amount in figure It is inconsistent that be with pay-off wire amount needed for practical unwrapping wire be, in order to meet actually required pay-off wire amount, with auxiliary thread take-up tension lever Main thread take-up tension lever carries out the control of line amount.During main thread take-up tension lever unwrapping wire, it is understood that there may be multiple and different line amount demands, than if any multiple Line amount changes phase J1, J2 ..., Jn.The pay-off wire amount L1 needed for the practical unwrapping wire of line amount changes phase J1 is greater than main thread take-up tension lever mark It when quasi- pay-off wire amount, then assists thread take-up tension lever under the premise of main thread take-up tension lever unwrapping wire, further puts more lines, actually put to meet Line demand, i.e. auxiliary thread take-up tension lever up move take-up, and auxiliary thread take-up tension lever executes unwrapping wire movement；It is put when line amount changes phase J2 is practical When pay-off wire amount L2 needed for line is less than main thread take-up tension lever standard pay-off wire amount, then assist thread take-up tension lever before main thread take-up tension lever unwrapping wire It puts, further controls main thread take-up tension lever take-up, to meet practical unwrapping wire demand, i.e. auxiliary thread take-up tension lever moves unwrapping wire down, assists Thread take-up tension lever executes take-up movement.When the line amount needed for pay-off wire amount is adjusted to practical unwrapping wire, the main controller controls auxiliary is chosen Line bar returns to the original position without retractable cable movement.That is, being resetted after auxiliary thread take-up tension lever completes auxiliary retractable cable movement.In this way, Enter the take-up stage in main thread take-up tension lever, especially the tightening line stage, auxiliary thread take-up tension lever does not interfere the take-up process of main thread take-up tension lever.In In main thread take-up tension lever tightening line process, the line tension detection unit detection is introduced in clamp tensioner lead-out wire to main thread take-up tension lever Whether the tension of embroider line meets tension adjustment condition between line, once meeting, the master controller adjusts the clamp tension dress The tension set can be maintained with to ensure main thread take-up tension lever when tightening line and be tightened under a constant-tension.

Specifically, the master controller includes line amount control module, unwrapping wire control module, tension threshold setup module, receives Line traffic control module.

The line amount control module is used to preset the retractable cable line amount of auxiliary thread take-up tension lever according to embroidered pattern.The line Amount control module includes multiple needle positions control unit, and each needle position control unit is stored with the receipts of the auxiliary thread take-up tension lever of corresponding needle position Line line amount or pay-off wire amount.

The unwrapping wire control module is chosen when recognizing main thread take-up tension lever and starting unwrapping wire according to the auxiliary of line amount control module The retractable cable line amount control auxiliary thread take-up tension lever of line bar carries out retractable cable movement, until completing to return to original position.The unwrapping wire controls mould Root tuber corresponds to the take-up line amount of needle position storage according to needle position control unit or pay-off wire amount executes retractable cable movement, such as assists thread take-up tension lever Retractable cable amount be+L, then unwrapping wire control module control auxiliary thread take-up tension lever move downward unwrapping wire, such as assist thread take-up tension lever retractable cable Amount is-L, then unwrapping wire control module control auxiliary thread take-up tension lever moves upwards take-up.

The tension threshold setup module is used to be preset according to embroidered pattern is pressing from both sides in main thread take-up tension lever tightening line process Line tension device lead-out wire to embroider line between main thread take-up tension lever lead-in tension threshold.The tension threshold setup module includes more A needle position threshold cell, each needle position threshold cell be stored with corresponding needle position in clamp tensioner lead-out wire to main thread take-up tension lever The tension threshold of embroider line between lead-in.

The take-up control module corresponds to the tension threshold of needle position storage according to needle position threshold cell, carries out under differing needles position The tension adjustment of clamp tensioner.Under an embodiment, tension adjustment condition are as follows: in clamp tensioner lead-out wire to master The tension of embroider line reaches tension threshold between thread take-up tension lever lead-in.The take-up control module starts recognizing main thread take-up tension lever When tightening line, and line tension detection unit is detected in clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in When tension reaches tension threshold, the tension of control clamp tensioner is less than tension threshold.For this purpose, the master controller further includes Tension adjustment unit, for storing the tension setting value of clamp tensioner corresponding to each needle position, which is less than Tension threshold.

Under yet other embodiments, tension adjustment condition are as follows: in clamp tensioner lead-out wire to main thread take-up tension lever lead-in Between embroider line tension be more than or less than tension threshold.The take-up control module recognize main thread take-up tension lever start tighten line When, and line tension detection unit detects that the tension in clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in is big When tension threshold, the tension of clamp tensioner is turned down to tension setting value.Start to tighten line recognizing main thread take-up tension lever When and line tension detection unit detect that the tension in clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in is small When tension threshold, the tension of clamp tensioner is tuned up to tension setting value.For this purpose, the master controller further includes tension Unit is adjusted, for storing the tension setting value of clamp tensioner corresponding to each needle position.

Under yet other embodiments, tension adjustment condition are as follows: in clamp tensioner lead-out wire to main thread take-up tension lever lead-in Between embroider line tension be greater than tension threshold.The take-up control module recognize main thread take-up tension lever start tightening when and line tension Detection unit, which is detected, is greater than tension threshold in the tension of clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in When, the main controller controls auxiliary thread take-up tension lever moves downward unwrapping wire, to balance line tension.When tightening one under constant line tension After fixing time, the tension of the main controller controls clamp tensioner is less than tension threshold, and controls auxiliary thread take-up tension lever and return to It is in situ.For this purpose, the master controller further includes unwrapping wire storage unit and time setting unit.The unwrapping wire storage unit is for depositing It stores up main thread take-up tension lever to start to tighten in line process, each needle position is corresponding in clamp tensioner lead-out wire to main thread take-up tension lever lead-in Between embroider line tension and established standards line tightening tension reach unanimously, corresponding auxiliary thread take-up tension lever moves downward the line of unwrapping wire Amount.The auxiliary thread take-up tension lever in this stage moves downward the line amount of unwrapping wire.Established standards line tightening tension according to inhomogeneity molded line, Embroidered pattern determines.The time setting unit is used to store the time of constant line tension tightening corresponding to each needle position.In It is tightened under constant line tension after a certain period of time, auxiliary thread take-up tension lever is returned to original position, does not interfere subsequent main thread take-up tension lever movement.In addition, The master controller further includes tension adjustment unit, and the tension for storing clamp tensioner corresponding to each needle position is set Value, the tension setting value are less than tension threshold.

The master controller further includes clamp tension setup module, for presetting clamp tension dress according to embroidered pattern The clamp tension value in main thread take-up tension lever tightening line process is set, the clamp tension value is greater than the tension threshold.The clamp Tension setup module includes multiple needle position clamp tension units, and each needle position clamp tension unit is stored with needed for corresponding needle position Clamp tension.When the main thread take-up tension lever starts take-up, clamp tensioner works under preset clamp tension, in main thread take-up tension lever It tightens in line process, the clamp tension of clamp tensioner can be adjusted, and tighten line to adapt to main thread take-up tension lever under constant-tension.

The present invention also provides a kind of embroidery machine embroider line tension force side according to above-mentioned embroidery machine embroider line tension control system Method.The method of the present invention includes:

The main thread take-up tension lever unwrapping wire stage: it when the master controller detects that the main thread take-up tension lever starts unwrapping wire, controls the auxiliary and chooses Line bar carries out retractable cable movement until completing to return to original position, to cooperate main thread take-up tension lever unwrapping wire and ensure that pay-off wire amount meets practical institute Need pay-off wire amount；

The main thread take-up tension lever take-up stage: the master controller detects when the main thread take-up tension lever starts to tighten line and line tension detection is single Whether member detection meets tension adjustment condition in the tension of clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in, So that constant tension when tightening line.

Preferably, it is described auxiliary thread take-up tension lever retractable cable line amount=| needed for main thread take-up tension lever unwrapping wire normal line amount-practical unwrapping wire Pay-off wire amount |.Start take-up to tightening line in main thread take-up tension lever and start period, main thread take-up tension lever takeup tension is smaller, is transferred to auxiliary Tension on thread take-up tension lever is negligible, even if having some tension and the tension is less than tension threshold, to clamp tensioner shadow Ring less, will not generate tensile force it is excessive and the case where break.The above process is present in the process of rotating shuttle pull outlet.This The period of the literary signified main thread take-up tension lever tightening line process is that baseline and upper thread start in fabric bottom intertexture to when smoking tight Period.

The main thread take-up tension lever take-up stage according to differential tension adjusting condition, is divided into following three kinds of control embodiment.It is real Apply mode one, the tension adjustment condition are as follows: in clamp tensioner lead-out wire to of embroider line between main thread take-up tension lever lead-in Power reaches tension threshold；The tension of the main controller controls clamp tensioner is less than tension threshold.Embodiment two, it is described Tension adjustment condition are as follows: be more than or less than in the tension of clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in and open Force threshold；It, will when the tension in clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in is greater than tension threshold The tension of clamp tensioner is turned down to tension setting value；When recognizing main thread take-up tension lever and starting to tighten line and line tension detection is single Member is detected when the tension of clamp tensioner lead-out wire to embroider line between main thread take-up tension lever lead-in is less than tension threshold, will be pressed from both sides The tension of line tension device is tuned up to tension setting value.Embodiment three, the tension adjustment condition are as follows: in clamp tensioner The tension of lead-out wire to embroider line between main thread take-up tension lever lead-in is greater than tension threshold；The main controller controls assist thread take-up tension lever to Lower movement unwrapping wire, when tightening under constant line tension after a certain period of time, controls the tension of clamp tensioner to balance line tension Less than tension threshold, while controller control auxiliary thread take-up tension lever returns to original position.

In view of needle bit line amount demand is different, often change in the colour changing stage, then can by above-mentioned control process with change Coded system combines, and when receiving colour changing signal, auxiliary thread take-up tension lever assists main thread take-up tension lever to execute different tension force movements.

The method of the present invention further includes the default process before embroidery machine work:

The retractable cable line amount of auxiliary thread take-up tension lever is preset according to embroidered pattern in master controller and main thread take-up tension lever tightens line mistake In clamp tensioner lead-out wire to the tension threshold of embroider line between main thread take-up tension lever lead-in in journey；

Clamp of the clamp tensioner in main thread take-up tension lever tightening line process is preset according to embroidered pattern in master controller Tension value, the clamp tension value are greater than the tension threshold.

For embodiment one, two, three, process is preset further include: before embroidery machine work, according to embroidery in master controller When floral pattern presets main thread take-up tension lever and starts to tighten line, the tension setting value of clamp tensioner corresponding to each needle position.It should Tension setting value is less than tension threshold, and for embodiment one, three, of clamp tensioner is adjusted according to the tension setting value Power becomes smaller；For embodiment two, become smaller or larger according to the tension that the tension setting value adjusts clamp tensioner.

For embodiment three, process is preset further include: before embroidery machine work, according to embroidered pattern in master controller When presetting main thread take-up tension lever and starting to tighten line, each needle position is corresponding to be introduced in clamp tensioner lead-out wire to main thread take-up tension lever Embroider line tension and established standards line tightening tension reach unanimously between line, and corresponding auxiliary thread take-up tension lever moves downward the line of unwrapping wire Amount, and preset the time of constant line tension tightening corresponding to each needle position.The established standards line tightens tension root It is determined according to inhomogeneity molded line, embroidered pattern.

When carrying out practical embroidering work using present system, method, when carrying out plain embroidery, main thread take-up tension lever is in the unwrapping wire stage Unwrapping wire amount do not need too much, then assist thread take-up tension lever move upwards take-up by way of control unwrapping wire amount；When progress pearl embroidery When, there is certain altitude since pearl enters cloth, the line amount of required embroider line is 2L, then needs main thread take-up tension lever putting in the unwrapping wire stage Line amount is enough, therefore controls unwrapping wire amount by way of assisting thread take-up tension lever to move downward unwrapping wire.

It should be understood by those skilled in the art that foregoing description and the embodiment of the present invention shown in the drawings are only used as illustrating And it is not intended to limit the present invention.The purpose of the present invention completely effectively realizes.Function and structural principle of the invention is in reality It applies and shows and illustrate in example, under without departing from the principle, embodiments of the present invention can have any deformation or modification.