CN110258031B - Curved seam power matching method and device for double-needle sewing machine - Google Patents
Curved seam power matching method and device for double-needle sewing machine Download PDFInfo
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- CN110258031B CN110258031B CN201910539921.8A CN201910539921A CN110258031B CN 110258031 B CN110258031 B CN 110258031B CN 201910539921 A CN201910539921 A CN 201910539921A CN 110258031 B CN110258031 B CN 110258031B
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B19/00—Programme-controlled sewing machines
- D05B19/02—Sewing machines having electronic memory or microprocessor control unit
- D05B19/04—Sewing machines having electronic memory or microprocessor control unit characterised by memory aspects
- D05B19/08—Arrangements for inputting stitch or pattern data to memory ; Editing stitch or pattern data
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B19/00—Programme-controlled sewing machines
- D05B19/02—Sewing machines having electronic memory or microprocessor control unit
- D05B19/12—Sewing machines having electronic memory or microprocessor control unit characterised by control of operation of machine
- D05B19/14—Control of needle movement, e.g. varying amplitude or period of needle movement
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Abstract
The invention provides a curve seam power matching method and device of a double-needle sewing machine, and relates to the field of textile processing. The sewing machine is used for solving the problem that the running speeds of two needles are inconsistent when the existing double-needle sewing machine is used for curve sewing. The method comprises the following steps: when the curvature of the (i + 1) th sewing point is confirmed to be unequal to the curvature of the (i) th sewing point, the sewing information of the (i + 1) th sewing point is sent to a differential speed controller, so that the differential speed controller determines the left side power and the right side power of a left side driving motor and a right side driving motor when the (i + 1) th sewing point is sewn according to the sewing information; and after receiving the left side power and the right side power sent by the differential controller, sending a left side power conversion command to the left side driving motor according to the left side power, and sending a right side power conversion command to the right side driving motor according to the right side power.
Description
Technical Field
The invention relates to the field of textile processing, in particular to a curve seam power matching method and device of a double-needle sewing machine.
Background
With the high speed, automation and labor saving development of sewing machines, the trend is increasingly obvious. Industrial sewing machines are different kinds of sewing machines from domestic sewing machines. The machine type, power, function and price of the device are greatly different. The industrial sewing machine has various corresponding functions, high power and high speed, and the general speed is 4000 rpm or even higher. There are high flat machines, overlock machines, buttonhole machines, button tackers, flat seaming machines, etc., each of which has many subdivisions. For example, the high flat machine has different models which are suitable for thin materials, medium thick materials and can be used for automatically cutting threads or not.
The double-needle sewing machine is a sewing machine with two needles, and the two threads are parallel to each other when coming out. The elegant appearance of the double-needle stitch of the double-needle sewing machine enables the double-needle stitch to be embodied on various products in our lives, and meanwhile, the double-needle sewing machine can be produced in batches in the clothing industry, and the sewing is widely applied to sewing of various materials due to the flat sewing machine. Therefore, in a workshop, the matching of the flat car and the double needles is about 5:1, but the matching is indispensable, and although the flat car can replace the double needles sometimes, the flat car can not be used for working the double needles in batch production, the double needles have high efficiency unless the production is small, and the double lines are parallel, regular and beautiful.
When the double-needle sewing needs to do curve sewing, the distance of the left needle and the right needle is not equal, but the time is the same, and the needle distance of the two needles must be kept the same in the sewing, which causes the problem that the running speeds of the two needles are not consistent.
In summary, the conventional two-needle sewing machine has a problem that the operating speeds of the two needles are not consistent when performing curved sewing.
Disclosure of Invention
The embodiment of the invention provides a curve seam power matching method and device of a double-needle sewing machine, which are used for solving the problem that the running speeds of two needles are inconsistent when the existing double-needle sewing machine is used for curve sewing.
The embodiment of the invention provides a curve seam power matching method for a double-needle sewing machine, which comprises the following steps:
when the curvature of the (i + 1) th sewing point is confirmed to be unequal to the curvature of the (i) th sewing point, the sewing information of the (i + 1) th sewing point is sent to a differential speed controller, so that the differential speed controller determines the left side power and the right side power of a left side driving motor and a right side driving motor when the (i + 1) th sewing point is sewn according to the sewing information;
and after receiving the left side power and the right side power sent by the differential controller, sending a left side power conversion command to the left side driving motor according to the left side power, and sending a right side power conversion command to the right side driving motor according to the right side power.
Preferably, after the sending of the left-side conversion power command to the left-side driving motor according to the left-side power, the method further includes:
when the left side driving motor receives the left side conversion power instruction, determining a first distance between a middle point between the ith sewing point and the (i + 1) th sewing point and a middle point between the (i + 1) th sewing point and the (i + 2) th sewing point on a track corresponding to the left side needle, and driving the left side needle to run according to the left side conversion power within the first distance; or
If the (i + 1) th sewing point is the last sewing point, determining a second distance between a middle point between the (i) th sewing point and the (i + 1) th sewing point on a track corresponding to the left side needle and the (i + 1) th sewing point, and driving the left side needle to run according to the left side conversion power within the second distance.
Preferably, after the right conversion power command is sent to the right driving motor according to the right power, the method further includes:
when the right side driving motor receives the right side power conversion instruction, determining a third distance between a middle point between the ith sewing point and the (i + 1) th sewing point and a middle point between the (i + 1) th sewing point and the (i + 2) th sewing point, and driving a right side needle to operate according to the right side power conversion within the third distance; or
And if the (i + 1) th sewing point is the last sewing point, driving the right needle to run according to the right conversion power within a fourth distance between the middle point between the (i) th sewing point and the (i + 1) th sewing point.
Preferably, after the sending of the left-side conversion power command to the left-side driving motor according to the left-side power, the method further includes:
storing the left conversion power as a left needle power value of the ith sewing point into a larvada binary file; and/or
And storing the right conversion power as the right needle power value of the ith sewing point into a larvada binary file.
Preferably, the sewing information includes curvature of an i +1 th sewing point, a frame moving linear speed, and a needle distance between the left side needle and the right side needle;
before confirming that the curvature of the (i + 1) th sewing point is not equal to the curvature of the (i) th sewing point, the method further comprises the following steps:
and acquiring the curvature of the (i + 1) th sewing point from a stored Bailingda binary file, wherein the Bailingda binary file comprises the sewing track of the left needle and the sewing track of the right needle.
The embodiment of the invention also provides a curve seam power matching device of the double-needle sewing machine, which comprises:
the first sending unit is used for sending the sewing information of the (i + 1) th sewing point to the differential speed controller when the fact that the curvature of the (i + 1) th sewing point is not equal to that of the (i) th sewing point is confirmed, so that the differential speed controller can determine the left side power and the right side power of the left side driving motor and the right side driving motor when the (i + 1) th sewing point is sewn according to the sewing information;
and the second sending unit is used for sending a left side power conversion command to the left side driving motor according to the left side power and sending a right side power conversion command to the right side driving motor according to the right side power after receiving the left side power and the right side power sent by the differential controller.
Preferably, the second sending unit is further configured to:
when the left side driving motor receives the left side conversion power instruction, determining a first distance between a middle point between the ith sewing point and the (i + 1) th sewing point and a middle point between the (i + 1) th sewing point and the (i + 2) th sewing point on a track corresponding to the left side needle, and driving the left side needle to run according to the left side conversion power within the first distance; or
If the (i + 1) th sewing point is the last sewing point, determining a second distance between a middle point between the (i) th sewing point and the (i + 1) th sewing point on a track corresponding to the left side needle and the (i + 1) th sewing point, and driving the left side needle to run according to the left side conversion power within the second distance.
Preferably, the second sending unit is further configured to:
when the right side driving motor receives the right side power conversion instruction, determining a third distance between a middle point between the ith sewing point and the (i + 1) th sewing point and a middle point between the (i + 1) th sewing point and the (i + 2) th sewing point, and driving a right side needle to operate according to the right side power conversion within the third distance; or
And if the (i + 1) th sewing point is the last sewing point, driving the right needle to run according to the right conversion power within a fourth distance between the middle point between the (i) th sewing point and the (i + 1) th sewing point.
Preferably, the second sending unit is further configured to:
storing the left conversion power as a left needle power value of the ith sewing point into a larvada binary file; and/or
And storing the right conversion power as the right needle power value of the ith sewing point into a larvada binary file.
Preferably, the sewing information includes curvature of an i +1 th sewing point, a frame moving linear speed, and a needle distance between the left side needle and the right side needle;
the first sending unit is further configured to:
and acquiring the curvature of the (i + 1) th sewing point from a stored Bailingda binary file, wherein the Bailingda binary file comprises the sewing track of the left needle and the sewing track of the right needle.
The embodiment of the invention provides a curve seam power matching method and a curve seam power matching device of a double-needle sewing machine, wherein the method comprises the following steps: when the curvature of the (i + 1) th sewing point is confirmed to be unequal to the curvature of the (i) th sewing point, the sewing information of the (i + 1) th sewing point is sent to a differential speed controller, so that the differential speed controller determines the left side power and the right side power of a left side driving motor and a right side driving motor when the (i + 1) th sewing point is sewn according to the sewing information; and after receiving the left side power and the right side power sent by the differential controller, sending a left side power conversion command to the left side driving motor according to the left side power, and sending a right side power conversion command to the right side driving motor according to the right side power. The method aims at the problem that the running speeds of the left needle and the right needle are inconsistent due to unequal running distances of the left needle and the right needle when the curve of the double-needle sewing machine is sewn, in the method, different driving powers of the left side and the right side when the curve is sewn are determined according to a differential mechanism principle on the basis of determining sewing points with unequal curvatures when the curve is sewn, so that the problem that the rotating speeds of the left needle and the right needle are inconsistent in the prior art is solved; furthermore, the method can apply the double-needle sewing to the curve sewing, has better sewing effect, greatly improves the utilization rate of the double-needle sewing in the production process and further improves the production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a curve seam power matching method for a two-needle sewing machine according to an embodiment of the present invention;
FIG. 2 is a schematic structural design view of a curved seam power system of a two-needle sewing machine according to an embodiment of the present invention;
FIG. 3 is a schematic view of a sewing region according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a curve seam power matching device of a two-needle sewing machine according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic flow chart of a curve seam power matching method of a two-needle sewing machine, which can be applied to at least the field of textile processing.
As shown in fig. 1, the method mainly comprises the following steps:
and 102, after receiving the left side power and the right side power sent by the differential controller, sending a left side power conversion command to the left side driving motor according to the left side power, and sending a right side power conversion command to the right side driving motor according to the right side power.
In the embodiment of the present invention, the curvature indicates the degree of curvature of the sewing track. In the prior art, the larinda binary file for double-needle sewing at least comprises two sewing tracks, namely the sewing track of a left needle and the sewing track of a right needle, which are approximately parallel.
Fig. 2 is a schematic structural design view of a curve seam power system of a two-needle sewing machine according to an embodiment of the present invention, and as shown in fig. 2, in the embodiment of the present invention, the two-needle sewing machine system includes a main controller, a differential controller, a left driving motor and a right driving motor. The master controller is electrically connected with the differential controller, the left driving motor and the right driving motor respectively.
In the embodiment of the present invention, the execution main body is a master controller, that is, the master controller can determine the sewing task currently executed by the two-needle sewing machine by obtaining the larvada binary file stored in the two-needle sewing machine, and further follow the larvada binary file to determine the curvature corresponding to each sewing point of the sewing machine, it should be noted that, if the curvatures corresponding to a plurality of consecutive sewing points of the two-needle sewing machine are equal, the master controller does not need to adjust the driving powers of the left driving motor and the right driving motor, that is, the left machine needle and the right machine needle can normally operate according to the current rotating speed; if the curvature corresponding to the next sewing point of the two-needle sewing machine is not equal to the curvature corresponding to the current sewing point, the master controller needs to adjust the driving power of the left driving motor and the right driving motor, and the specific adjustment scheme is the method provided by the embodiment of the invention.
In step 101, when the master controller determines that the curvature corresponding to the next sewing point is not equal to the curvature corresponding to the current sewing point, that is, when it determines that the curvature corresponding to the (i + 1) th sewing point is not equal to the curvature corresponding to the ith sewing point, the master controller needs to send the sewing information corresponding to the (i + 1) th sewing point to the differential controller.
For example, if the current sewing point is the 10 th sewing point, the controller needs to firstly confirm the curvature of the 11 th sewing point according to the larvada binary file stored in the sewing machine, compare the curvature of the 11 th sewing point with the curvature of the current 10 th sewing point, and if the curvatures of the two sewing points are consistent, the total controller does not perform any processing; if the curvatures of the two sewing points are not consistent, the master controller needs to send the sewing information corresponding to the 11 th sewing point to the differential speed controller.
Further, after the differential controller receives the sewing information of the (i + 1) th sewing point sent by the master controller, the left side power and the right side power of the left side driving motor and the right side driving motor included in the two-needle sewing machine when the (i + 1) th sewing point is sewn are calculated and obtained according to the sewing information of the sewing point.
Specifically, in practical application, after the differential controller receives the sewing information of the (i + 1) th sewing point sent by the master controller, according to the curvature of the (i + 1) th sewing point included in the seam information, the radius R of the arc corresponding to the sewing point can be determined, and moreover, because the needle pitch between two adjacent sewing points of the one-side needle can be approximately determined through the MTP file, the curve steering angle can be determined according to the formula provided in table 1.
In the embodiment of the invention, the sewing information comprises the curvature of the (i + 1) th sewing point, the frame moving linear speed and the needle distance between the left needle and the right needle. In the case of sewing, since the cloth needs to be fixed by the press frame, the entire press frame moves relative to the needle when the cloth moves, and the movement of the entire press frame relative to the needle is determined as the frame moving linear velocity.
TABLE 1 Curve steering Angle calculation List
In step 102, after the differential controller determines the left power and the right power corresponding to the (i + 1) th sewing point according to the sewing information of the (i + 1) th sewing point, the differential controller needs to send the determined left power and the determined right power corresponding to the (i + 1) th sewing point to the master controller.
After the master controller receives the left power and the right power corresponding to the (i + 1) th sewing point, the left power corresponding to the (i + 1) th sewing point is compared with the left power corresponding to the (i + 1) th sewing point, so that the power value which needs to be converted by the left driving motor at the (i + 1) th sewing point is determined, namely a left conversion power instruction corresponding to the left driving motor is determined, and the left conversion power instruction is sent to the left driving motor after the master controller determines the left conversion power instruction; similarly, the master controller needs to compare the right power corresponding to the ith sewing point with the right power corresponding to the (i + 1) th sewing point, so as to determine the power value to be converted by the right driving motor at the (i + 1) th sewing point, that is, determine the right conversion power instruction corresponding to the right driving motor, and after determining the right conversion power instruction, send the right conversion power instruction to the right driving motor.
In the embodiment of the present invention, since the left driving motor may drive the left needle to operate, after the left driving motor receives the left conversion power command sent by the overall controller, it is necessary to further determine a distance to be operated according to the left conversion power command.
Specifically, the master controller firstly determines whether the (i + 1) th sewing point is the last sewing point of the sewing according to the Bailingda binary file, if the (i + 1) th sewing point is not the last sewing point, a first distance from the middle point of the (i + 1) th sewing point and the middle point of the (i + 1) th sewing point on the track corresponding to the left side needle to the middle point of the (i + 1) th sewing point is firstly determined, then the master controller determines that the left side needle is driven to run according to the left side conversion power on the determined first distance on the track corresponding to the left side needle; if the (i + 1) th sewing point is the last sewing point, the second distance between the middle point between the (i) th sewing point and the (i + 1) th sewing point on the track corresponding to the left-side needle and the (i + 1) th sewing point needs to be determined, then the master controller determines that the left-side needle runs according to the left-side conversion power on the determined second distance on the track corresponding to the left-side needle.
Further, after the master controller confirms that the left-side needle is driven to operate according to the left-side conversion power at the first distance or the second distance, the operation conversion power of the left-side needle driven by the left-side driver at the first distance or the second distance can be stored in the lark binary file, so that the left-side conversion driving power of the left-side driving motor can be directly acquired when the lark binary file is executed next time. By the method, the master controller can obtain the well-matched running power of the left-side needle in each area by reading the lark binary file once, and can obtain the running power of any area by only reading the file during batch production.
Fig. 3 is a schematic diagram of a structure of a sewing area according to an embodiment of the present invention, and the method for determining the first distance and the second distance is described in detail below with reference to fig. 3 as an example, as shown in fig. 3, when it is determined that the (i + 1) th sewing point is not the last sewing point, on a track corresponding to the left needle, a first middle point between the (i) th sewing point and the (i + 1) th sewing point is determined, then a second middle point between the (i + 1) th sewing point and the (i + 2) th sewing point is determined, and finally, a distance between the first middle point and the second middle point is determined, and the distance is determined as the first distance. When the i +1 th sewing point is confirmed to be the last sewing point, on the track corresponding to the left side needle, a first middle point between the i th sewing point and the i +1 th sewing point is confirmed, then the distance between the first middle point and the i +1 th sewing point is confirmed, and the distance is confirmed to be a second distance.
In the embodiment of the present invention, since the right driving motor can drive the right hand machine needle to operate, after the right driving motor receives the right hand side conversion power command sent by the overall controller, the distance to operate according to the right hand side conversion power command needs to be further determined.
Specifically, the master controller firstly determines whether the (i + 1) th sewing point is the last sewing point of the sewing according to the Bailingda binary file, if the (i + 1) th sewing point is not the last sewing point, the third distance from the middle point of the (i + 1) th sewing point and the middle point of the (i + 1) th sewing point on the track corresponding to the right-side machine needle to the middle point of the (i + 1) th sewing point is firstly determined, then the master controller determines that the right-side machine needle is driven to run according to the right-side conversion power on the determined third distance on the track corresponding to the right-side machine needle; if the (i + 1) th sewing point is the last sewing point, the fourth distance between the middle point between the (i) th sewing point and the (i + 1) th sewing point on the track corresponding to the right needle and the (i + 1) th sewing point needs to be determined, then the master controller determines that the right needle runs according to the right conversion power on the fourth distance determined on the track corresponding to the right needle.
Fig. 3 is a schematic diagram of a structure of a sewing area according to an embodiment of the present invention, and the method for determining the third distance and the fourth distance is described in detail below with reference to fig. 3 as an example, as shown in fig. 3, when it is determined that the (i + 1) th sewing point is not the last sewing point, on a track corresponding to the right-side needle, a first middle point between the (i) th sewing point and the (i + 1) th sewing point is determined, then a second middle point between the (i + 1) th sewing point and the (i + 2) th sewing point is determined, and finally, a distance between the first middle point and the second middle point is determined, and the distance is determined as the second distance. When the i +1 th sewing point is confirmed to be the last sewing point, on the track corresponding to the right needle, a first middle point between the i th sewing point and the i +1 th sewing point is confirmed, then the distance between the first middle point and the i +1 th sewing point is confirmed, and the distance is confirmed to be a fourth distance.
Further, after the master controller determines that the right hand needle is driven to operate according to the right hand conversion power at the third distance or the fourth distance, the operation conversion power of the right hand needle driven by the right hand driver at the third distance or the fourth distance may be stored in the lark binary file, so that the right hand conversion driving power of the right hand driving motor may be directly obtained when the lark binary file is executed next time. By the method, the master controller can obtain the well-matched running power of the right-side needle in each area by reading the lark binary file once, and can obtain the running power of any area by only reading the file during batch production.
It should be noted that, in practical applications, if the batch processing is required according to the stored darlingda binary file, because the darlingda binary file is too large or the sewing speed in practical applications is relatively high, the master controller may perform only the differential processing without performing the sewing processing when reading the darlingda binary file information for the first time, and then perform the acquired operation conversion power MTP of the right-hand machine needle without performing the sewing processing.
In summary, the embodiment of the invention provides a method and a device for matching curve seam power of a double-needle sewing machine, aiming at the problem that the running speeds of the left and right needles are inconsistent when the curve of the double-needle sewing machine is sewn, in the method, on the basis of determining the sewing points with unequal curvatures when the curve is sewn, different driving powers of the left and right sides are determined according to the principle of a differential mechanism, so that the problem that the rotating speeds of the left and right needles are inconsistent in the prior art is solved; furthermore, the method can apply the double-needle sewing to the curve sewing, has better sewing effect, greatly improves the utilization rate of the double-needle sewing in the production process and further improves the production efficiency.
Based on the same inventive concept, the embodiment of the invention provides a curve seam power matching device of a two-needle sewing machine, and as the principle of the device for solving the technical problem is similar to the curve seam power matching method of the two-needle sewing machine, the implementation of the device can refer to the implementation of the method, and repeated parts are not repeated.
Fig. 4 is a schematic structural diagram of a curve seam power matching device of a two-needle sewing machine according to an embodiment of the present invention, and as shown in fig. 4, the device mainly includes a first transmitting unit 401 and a second transmitting unit 402.
A first sending unit 401, configured to send sewing information of an (i + 1) th sewing point to a differential controller when it is determined that a curvature of the (i + 1) th sewing point is not equal to a curvature of the (i) th sewing point, so that the differential controller determines, according to the sewing information, a left side power and a right side power of a left side driving motor and a right side driving motor when the (i + 1) th sewing point is sewn;
a second sending unit 402, configured to send a left power conversion command to the left driving motor according to the left power and send a right power conversion command to the right driving motor according to the right power after receiving the left power and the right power sent by the differential controller.
Preferably, the second sending unit 402 is further configured to:
when the left side driving motor receives the left side conversion power instruction, determining a first distance between a middle point between the ith sewing point and the (i + 1) th sewing point and a middle point between the (i + 1) th sewing point and the (i + 2) th sewing point on a track corresponding to the left side needle, and driving the left side needle to run according to the left side conversion power within the first distance; or
If the (i + 1) th sewing point is the last sewing point, determining a second distance between a middle point between the (i) th sewing point and the (i + 1) th sewing point on a track corresponding to the left side needle and the (i + 1) th sewing point, and driving the left side needle to run according to the left side conversion power within the second distance.
Preferably, the second sending unit 402 is further configured to:
when the right side driving motor receives the right side power conversion instruction, determining a third distance between a middle point between the ith sewing point and the (i + 1) th sewing point and a middle point between the (i + 1) th sewing point and the (i + 2) th sewing point, and driving a right side needle to operate according to the right side power conversion within the third distance; or
And if the (i + 1) th sewing point is the last sewing point, driving the right needle to run according to the right conversion power within a fourth distance between the middle point between the (i) th sewing point and the (i + 1) th sewing point.
Preferably, the second sending unit 402 is further configured to:
storing the left conversion power as a left needle power value of the ith sewing point into a larvada binary file; and/or
And storing the right conversion power as the right needle power value of the ith sewing point into a larvada binary file.
Preferably, the sewing information includes curvature of an i +1 th sewing point, a frame moving linear speed, and a needle distance between the left side needle and the right side needle;
the first sending unit 401 is further configured to:
and acquiring the curvature of the (i + 1) th sewing point from a stored Bailingda binary file, wherein the Bailingda binary file comprises the sewing track of the left needle and the sewing track of the right needle.
It should be understood that the curve seam power matching device of the two-needle sewing machine comprises units which are only logically divided according to the functions realized by the equipment device, and in practical application, the units can be overlapped or separated. The function of the curve seam power matching device of the two-needle sewing machine provided by the embodiment corresponds to the curve seam power matching method of the two-needle sewing machine provided by the above embodiment one by one, and for the more detailed processing flow realized by the device, the detailed description is already given in the first embodiment of the method, and the detailed description is not given here.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. A curve seam power matching method of a double-needle sewing machine is characterized by comprising the following steps:
when the curvature of the (i + 1) th sewing point is confirmed to be unequal to the curvature of the (i) th sewing point, the sewing information of the (i + 1) th sewing point is sent to a differential speed controller, so that the differential speed controller determines the left side power and the right side power of a left side driving motor and a right side driving motor when the (i + 1) th sewing point is sewn according to the sewing information;
after the left side power and the right side power sent by the differential controller are received, a left side power conversion command is sent to the left side driving motor according to the left side power, and a right side power conversion command is sent to the right side driving motor according to the right side power;
wherein, after sending a left conversion power command to the left driving motor according to the left power, the method further comprises:
when the left side driving motor receives the left side conversion power instruction, determining a first distance between a middle point between the ith sewing point and the (i + 1) th sewing point and a middle point between the (i + 1) th sewing point and the (i + 2) th sewing point on a track corresponding to the left side needle, and driving the left side needle to run according to the left side conversion power within the first distance; or
If the (i + 1) th sewing point is the last sewing point, determining a second distance between a middle point between the (i) th sewing point and the (i + 1) th sewing point on a track corresponding to the left side needle and the (i + 1) th sewing point, and driving the left side needle to run according to the left side conversion power within the second distance;
wherein, after sending the right side conversion power instruction to the right side driving motor according to the right side power, the method further comprises:
when the right side driving motor receives the right side power conversion instruction, determining a third distance between a middle point between the ith sewing point and the (i + 1) th sewing point and a middle point between the (i + 1) th sewing point and the (i + 2) th sewing point, and driving a right side needle to operate according to the right side power conversion within the third distance; or
And if the (i + 1) th sewing point is the last sewing point, driving the right needle to run according to the right conversion power within a fourth distance between the middle point between the (i) th sewing point and the (i + 1) th sewing point.
2. The method of claim 1, wherein after sending a left-hand power command to the left-hand drive motor based on the left-hand power, further comprising:
storing the left conversion power as a left needle power value of the ith sewing point into a larvada binary file; and/or
And storing the right conversion power as the right needle power value of the ith sewing point into a larvada binary file.
3. The method of claim 1, wherein the sewing information includes curvature of an i +1 th sewing point, frame line speed, needle distance between a left side needle and a right side needle;
before confirming that the curvature of the (i + 1) th sewing point is not equal to the curvature of the (i) th sewing point, the method further comprises the following steps:
and acquiring the curvature of the (i + 1) th sewing point from a stored Bailingda binary file, wherein the Bailingda binary file comprises the sewing track of the left needle and the sewing track of the right needle.
4. A curved seam power matching device of a two-needle sewing machine is characterized by comprising:
the first sending unit is used for sending the sewing information of the (i + 1) th sewing point to the differential speed controller when the fact that the curvature of the (i + 1) th sewing point is not equal to that of the (i) th sewing point is confirmed, so that the differential speed controller can determine the left side power and the right side power of the left side driving motor and the right side driving motor when the (i + 1) th sewing point is sewn according to the sewing information;
a second sending unit, configured to send a left power conversion command to the left driving motor according to the left power and send a right power conversion command to the right driving motor according to the right power after receiving the left power and the right power sent by the differential controller;
wherein the second sending unit is further configured to:
when the left side driving motor receives the left side conversion power instruction, determining a first distance between a middle point between the ith sewing point and the (i + 1) th sewing point and a middle point between the (i + 1) th sewing point and the (i + 2) th sewing point on a track corresponding to the left side needle, and driving the left side needle to run according to the left side conversion power within the first distance; or
If the (i + 1) th sewing point is the last sewing point, determining a second distance between a middle point between the (i) th sewing point and the (i + 1) th sewing point on a track corresponding to the left side needle and the (i + 1) th sewing point, and driving the left side needle to run according to the left side conversion power within the second distance;
wherein the second sending unit is further configured to:
when the right side driving motor receives the right side power conversion instruction, determining a third distance between a middle point between the ith sewing point and the (i + 1) th sewing point and a middle point between the (i + 1) th sewing point and the (i + 2) th sewing point, and driving a right side needle to operate according to the right side power conversion within the third distance; or
And if the (i + 1) th sewing point is the last sewing point, driving the right needle to run according to the right conversion power within a fourth distance between the middle point between the (i) th sewing point and the (i + 1) th sewing point.
5. The apparatus of claim 4, wherein the second sending unit is further to:
storing the left conversion power as a left needle power value of the ith sewing point into a larvada binary file; and/or
And storing the right conversion power as the right needle power value of the ith sewing point into a larvada binary file.
6. The apparatus of claim 4, wherein the sewing information includes curvature of an i +1 th sewing point, frame line speed, needle distance between a left side needle and a right side needle;
the first sending unit is further configured to:
and acquiring the curvature of the (i + 1) th sewing point from a stored Bailingda binary file, wherein the Bailingda binary file comprises the sewing track of the left needle and the sewing track of the right needle.
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