CN113026230A - Sewing machine thread take-up device and sewing machine thread take-up control method - Google Patents
Sewing machine thread take-up device and sewing machine thread take-up control method Download PDFInfo
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- CN113026230A CN113026230A CN202110295126.6A CN202110295126A CN113026230A CN 113026230 A CN113026230 A CN 113026230A CN 202110295126 A CN202110295126 A CN 202110295126A CN 113026230 A CN113026230 A CN 113026230A
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B49/00—Take-up devices, e.g. levers, for the needle thread
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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
- D05B19/10—Arrangements for selecting combinations of stitch or pattern data from memory ; Handling data in order to control stitch format, e.g. size, direction, mirror image
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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
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Abstract
The application provides a sewing machine take-up equipment and sewing machine take-up control method, and the sewing machine includes: the device comprises a first motor, a needle, a controller, a second motor and a take-up lever; the first motor is respectively connected with the needle and the controller; the second motor is respectively connected with the controller and the take-up lever; applied to a controller, the method comprises: acquiring first operation data sent by a first motor, wherein the first operation data represents the operation speed and/or the operation angle of a needle; determining second operation data according to the first operation data, wherein the second operation data represent the operation speed and/or the operation angle of the take-up lever; and controlling a second motor to drive the take-up lever to take up the thread according to the second operation data. Compared with the prior art, the mode that this application carries out the take-up through the independent drive take-up lever of second motor realizes that the take-up lever carries out dynamic adjustment to the take-up lever according to the functioning speed and/or the running angle of eedle, and then has improved sewing machine's take-up effect.
Description
Technical Field
The application relates to the technical field of sewing machines, in particular to a sewing machine thread take-up device and a sewing machine thread take-up control method.
Background
The existing upper shaft of sewing machine is driven by a servo motor, and comprises a needle and a thread take-up device. The needle realizes the functions of penetrating materials and forming a thread ring, the thread picking device is responsible for extracting the upper thread from the thread frame to supply the length required by the thread ring, then the upper thread of the thread ring is gradually tightened, and the needle is matched with the thread picking special device to realize a sewing process with complete needle pitch.
At present, the driving of a take-up device is synchronously driven by an upper shaft motor, a machine needle and a take-up lever are synchronously connected through machinery to realize a fixed matching relationship, and if one machine needle is lifted into one period, the relationship between the displacement and the operation angle of the machine needle and the take-up device in one period is fixed and unchanged.
However, in the existing sewing machine, an upper shaft motor synchronously drives a needle and a take-up lever, the matching relationship between the needle and the take-up lever is fixed, and during sewing, when fabrics with different thicknesses are sewn and stitches with different toughness are used, the take-up lever can loose take-up and the take-up effect is poor; the line receiving process is too violent, which may cause the split and break of the upper thread and the problem of the needle lifting and the line dropping caused by the violent line receiving process in the needle lifting stage. Therefore, in the existing scheme, the problem of poor take-up effect of the sewing machine is caused by the fixed matching relationship between the needle and the take-up lever.
Disclosure of Invention
The embodiment of the application provides a sewing machine take-up device and a sewing machine take-up control method, and aims to solve the problem that a sewing machine is poor in take-up effect due to the fixed matching relationship between a needle and a take-up lever in the prior art.
A first aspect of the present application provides a sewing machine thread take-up apparatus, the apparatus comprising: the device comprises a first motor, a needle, a controller, a second motor and a take-up lever; the first motor is respectively connected with the needle and the controller; the second motor is respectively connected with the controller and the take-up lever;
the first motor is used for driving the needle to penetrate through a target material to form a wire loop and sending first operation data to the controller, and the first operation data is used for representing the operation speed and/or the operation angle of the needle;
the controller is used for determining second operation data according to the first operation data, and the second operation data are used for representing the operation speed and/or the operation angle of the take-up lever; and controlling the second motor to drive the take-up lever to take up the thread according to the second operation data.
In an optional embodiment, the controller is further configured to obtain the number of take-up needles of the take-up lever; judging whether the number of the take-up needles exceeds a needle lifting threshold value; and if not, controlling the second motor to drive the take-up lever to take up the thread according to the needle-lifting operation data and the second operation data, wherein the needle-lifting operation data represents the operation speed and/or the operation angle required by the needle lifting of the target material.
In an optional embodiment, the controller is further configured to obtain a thickness of the target material; judging whether the thickness of the target material exceeds a thickness threshold value; if so, controlling the second motor to drive the thread take-up lever to take up threads according to thick material operation data and the second operation data, wherein the thick material operation data represents the operation speed and/or the operation angle required by take-up when the target material is thick material; and if not, controlling the second motor to drive the thread take-up lever to take up threads according to thin material operation data and the second operation data, wherein the thin material operation data represents the operation speed and/or the operation angle required by take-up when the target material is a thin material.
In an optional embodiment, the take-up lever is driven by the second motor to perform circular motion; the controller is also used for acquiring the operation angle of the needle; judging whether the operation angle is equal to a first operation angle, wherein the first operation angle is the operation angle when the take-up lever is at the highest position; if yes, the second motor is controlled to drive the take-up lever to descend.
In an optional embodiment, the controller is further configured to obtain an operation angle of the needle; judging whether the operation angle is equal to a second operation angle, wherein the second operation angle is the operation angle when the take-up lever is at the lowest position; and if so, controlling the second motor to drive the take-up lever to ascend.
In an optional embodiment, the controller is further configured to obtain sewing pattern data of the target material, where the sewing pattern data includes a sewing needle number; judging whether the last stitch is formed according to the sewing pattern data and the number of the thread picking stitches; if yes, ending sewing.
In an alternative embodiment, the first electric machine comprises: an encoder;
the encoder is used for acquiring the rotating speed and the grid of the first motor and determining the first operation data according to the rotating speed and the grid, wherein the grid represents the operation angle of the needle.
A second aspect of the present application provides a method of controlling thread take-up of a sewing machine, the sewing machine including: the device comprises a first motor, a needle, a controller, a second motor and a take-up lever; the first motor is respectively connected with the needle and the controller; the second motor is respectively connected with the controller and the take-up lever; applied to the controller, the method comprises:
acquiring first operation data sent by the first motor, wherein the first operation data represents the operation speed and/or the operation angle of the needle;
determining second operation data according to the first operation data, wherein the second operation data represent the operation speed and/or the operation angle of the take-up lever;
and controlling the second motor to drive the take-up lever to take up the thread according to the second operation data.
In an optional embodiment, the acquiring first operation data sent by the first motor includes:
the first motor drives the needle to penetrate through a target material to form a wire loop and sends the first operation data to the controller;
the controller acquires the first operation data sent by the first motor.
In an optional embodiment, the method further comprises:
acquiring the number of take-up needles of the take-up lever;
judging whether the number of the take-up needles exceeds a needle lifting threshold value;
and if not, controlling the second motor to drive the take-up lever to take up the thread according to the needle-lifting operation data and the second operation data, wherein the needle-lifting operation data represents the operation speed and/or the operation angle required by the needle lifting of the target material.
In an optional embodiment, the method further comprises:
obtaining the thickness of the target material;
judging whether the thickness of the target material exceeds a thickness threshold value;
if so, controlling the second motor to drive the thread take-up lever to take up threads according to thick material operation data and the second operation data, wherein the thick material operation data represents the operation speed and/or the operation angle required by take-up when the target material is thick material;
and if not, controlling the second motor to drive the thread take-up lever to take up threads according to thin material operation data and the second operation data, wherein the thin material operation data represents the operation speed and/or the operation angle required by take-up when the target material is a thin material.
In an optional embodiment, the method further comprises:
acquiring the operation angle of the needle;
judging whether the operation angle is equal to a first operation angle, wherein the first operation angle is the operation angle when the take-up lever is at the highest position, and the take-up lever performs circular motion under the driving of the second motor;
if yes, the second motor is controlled to drive the take-up lever to descend.
In an optional embodiment, the method further comprises:
acquiring the operation angle of the needle;
judging whether the operation angle is equal to a second operation angle, wherein the second operation angle is the operation angle when the take-up lever is at the lowest position;
and if so, controlling the second motor to drive the take-up lever to ascend.
In an optional embodiment, the method further comprises:
acquiring sewing pattern data of the target material, wherein the sewing pattern data comprises sewing needle number;
judging whether the last stitch is formed according to the sewing pattern data and the number of the thread picking stitches;
if yes, ending sewing.
In an alternative embodiment, the first electric machine comprises: an encoder;
the encoder is used for acquiring the rotating speed and the grid of the first motor;
and the encoder determines the first operation data according to the rotating speed and a grid, wherein the grid represents the operation angle of the needle.
A third aspect of the present application provides a computer readable storage medium for storing a computer program for causing a computer to perform the method according to the second aspect.
A fourth aspect of the application provides a computer program product comprising a computer program which, when executed by a processor, performs the method according to the second aspect.
A fifth aspect of the present application provides a chip, comprising: a processor for calling and running the computer program from the memory so that the device on which the chip is installed performs the method according to the second aspect.
A sixth aspect of the present application provides a computer program for causing a computer to perform the method according to the first aspect.
In the sewing machine thread take-up device and the sewing machine thread take-up control method provided by the embodiment of the application, the sewing machine comprises: the device comprises a first motor, a needle, a controller, a second motor and a take-up lever; the first motor is respectively connected with the needle and the controller; the second motor is respectively connected with the controller and the take-up lever; the control method of the thread take-up of the sewing machine is applied to a controller and comprises the following steps: acquiring first operation data sent by a first motor, wherein the first operation data represents the operation speed and/or the operation angle of a needle; determining second operation data according to the first operation data, wherein the second operation data represent the operation speed and/or the operation angle of the take-up lever; and controlling a second motor to drive the take-up lever to take up the thread according to the second operation data. Compared with the prior art, the mode that this application carries out the take-up through the independent drive take-up lever of second motor realizes that the take-up lever carries out dynamic adjustment to the take-up lever according to the functioning speed and/or the running angle of eedle, and then has improved sewing machine's take-up effect.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings needed to be used in the description of the embodiments or the prior art, and obviously, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without inventive labor.
Fig. 1 is a schematic view of an application scenario of a control method for thread take-up of a sewing machine according to an embodiment of the present application;
FIG. 2 is a schematic structural view of a thread take-up device of a sewing machine according to an embodiment of the present application;
FIG. 3 is a schematic structural view of another thread take-up device of a sewing machine according to an embodiment of the present application;
FIG. 4 is a diagram showing the relationship between the displacement and the angle of a needle and a thread take-up lever when the needle and the thread take-up lever are mechanically connected according to an embodiment of the present application;
FIG. 5 is a diagram illustrating the relationship between the displacement and the angle of a needle and a thread take-up lever when the needle and the thread take-up lever are independently controlled according to an embodiment of the present application;
fig. 6 is a schematic flow chart of a method for controlling thread take-up of a sewing machine according to an embodiment of the present application.
Reference numerals:
100-a sewing machine;
001-take-up device;
002-machine needle;
003-a first electric machine;
004-a controller;
005-a second electric machine;
006-take-up lever;
101-fixed columns;
102-a crank;
103-link.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
The existing upper shaft of sewing machine is driven by a servo motor, and comprises a needle and a thread take-up device. The needle realizes the functions of penetrating materials and forming a thread ring, the thread picking device is responsible for extracting the upper thread from the thread frame to supply the length required by the thread ring, then the upper thread of the thread ring is gradually tightened, and the needle is matched with the thread picking special device to realize a sewing process with complete needle pitch. At present, the driving of a take-up device is synchronously driven by an upper shaft motor, a machine needle and a take-up lever are synchronously connected through machinery to realize a fixed matching relationship, and if one machine needle is lifted into one period, the relationship between the displacement and the operation angle of the machine needle and the take-up device in one period is fixed and unchanged.
However, in the existing sewing machine, an upper shaft motor synchronously drives a needle and a take-up lever, the matching relationship between the needle and the take-up lever is fixed, and during sewing, when fabrics with different thicknesses are sewn and stitches with different toughness are used, the take-up lever can loose take-up and the take-up effect is poor; the line receiving process is too violent, which may cause the split and break of the upper thread and the problem of the needle lifting and the line dropping caused by the violent line receiving process in the needle lifting stage. Therefore, in the existing scheme, the problem of poor take-up effect of the sewing machine is caused by the fixed matching relationship between the needle and the take-up lever.
In order to solve the problems, the application provides a sewing machine take-up device and a sewing machine take-up control method, the independent motor is arranged to drive the take-up lever, the take-up lever is dynamically adjusted according to the running speed and the angle of a machine needle, and a variable matching relation is formed between the machine needle and the take-up lever, so that the take-up effect of the sewing machine is improved.
The following explains an application scenario of the present application.
Fig. 1 is a schematic view of an application scenario of a control method for thread take-up of a sewing machine according to an embodiment of the present application. As shown in fig. 1, the sewing machine 100 includes: a thread take-up device 001, a needle 002, a first motor 003 and a controller 004; the thread take-up device 001 includes: a second motor 005, and a thread take-up lever 006. Wherein, the first motor 003 is respectively connected with the needle 002 and the controller 004; the second motor 005 is connected to the controller 004 and the thread take-up lever 006, respectively. The controller 004 determines the second operation data according to the first operation data transmitted from the first motor 003, and controls the second motor 005 to drive the thread take-up lever 006 to take up the thread according to the second operation data. In this application, the thread take-up lever 006 is driven by the second motor 005 to take-up thread according to the operating speed and/or operating angle of the needle 002, and the dynamic adjustment of the thread take-up process of the thread take-up lever is realized.
The controller 004 may be one controller in an electric control system of the sewing machine 100, may also be a combination of two or more controllers, or may be another controller provided in the sewing machine, the controller 004 is not specifically limited in this application, and the controllers that can control the first motor 003 and the second motor 005 to implement the solution of this application are all within the protection scope of this application.
The type of the first motor 003 and the second motor 005 is not limited in this application, and may be, for example, a servo motor, a stepping motor, or the like.
In the embodiment of the application, the device for realizing the control function of the thread take-up of the sewing machine can be a controller, and can also be a device capable of supporting realizing the function, such as a chip system, and the device can be installed in a terminal device or a server. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.
It should be noted that, the application scenario of the technical solution of the present application may be the scenario in fig. 1, but is not limited to this, and may also be applied to other scenarios requiring thread take-up of a sewing machine.
The following is a description of the structure of the thread take-up device of the sewing machine provided in the embodiment of the present application.
Fig. 2 is a schematic structural diagram of a thread take-up device of a sewing machine according to an embodiment of the present invention, and as shown in fig. 2, a first motor 003 is connected to a controller 004 and a needle 002 respectively, and a second motor 005 is connected to the controller 004 and a thread take-up lever 006 respectively. The first motor 003 is used for driving the needle to penetrate through a target material to form a wire loop and sending first operation data to the controller 004, wherein the first operation data is used for representing the operation speed and/or the operation angle of the needle; the controller 004 is used for determining second operation data according to the first operation data, and the second operation data are used for representing the operation speed and/or the operation angle of the take-up lever; the second motor 005 is controlled to drive the thread take-up lever 006 to take up thread according to the second operation data.
The structure of the thread take-up device 001 provided in the embodiment of the present application will be specifically described below.
Fig. 3 is a schematic structural view of another thread take-up device of a sewing machine according to an embodiment of the present application, and as shown in fig. 3, the thread take-up device includes: a second motor 005, a take-up lever 006, a fixed column 101, a crank 102 and a link 103. The crank 102 and the link 103 are mechanically connected to realize mechanical linkage, the second motor 005 and the fixed column 101 are fixed in position, the fixed column 101 and the take-up lever 006 are connected to limit the position of the take-up lever 006, the second motor 005 performs circular motion in a fixed position, and the take-up lever 006 is driven to perform circular motion by the crank 102 and the link 103, wherein the fixed column 101 and the take-up lever 006 are connected together to form an integral part similar to a 'Y' shape, the middle of the 'Y' shape is movable, and the track of the circular motion of the take-up lever 006 can be changed from a circle to a crescent shape by the 'Y' shaped part.
On the basis of the above devices, the thread take-up device of the sewing machine and the functions thereof provided by the embodiment of the application are specifically described below.
It should be noted that the embodiments of the present application only provide functions that can be realized by the thread take-up device of the sewing machine provided by the present application and technical means that can be adopted, and do not limit the scope of protection of the present application, which is subject to the scope of the claims. All through carrying out independent control with take-up lever 006 and eedle 002, realize that the sewing machine carries out dynamic adjustment to take-up lever 006 according to different seam material and suture, improve the equipment and the method of sewing machine's receipts line effect and all be in the scope of protection of this application.
The sewing machine take-up device in the embodiment of the application comprises: a first motor 003, a needle 002, a controller 004, a second motor 005 and a thread take-up lever 006; the first motor 003 is respectively connected with the needle 002 and the controller 004; the second motor 005 is connected with the controller 004 and the thread take-up lever 006; the first motor 003 is used for driving the needle 002 to penetrate through a target material to form a wire loop, and sending first operation data to the controller 004, wherein the first operation data are used for representing the operation speed and/or the operation angle of the needle 002; a controller 004 for determining second operation data according to the first operation data, the second operation data being used for representing the operation speed and/or operation angle of the take-up lever 006; the second motor 005 is controlled to drive the thread take-up lever 006 to take up thread according to the second operation data.
The controller 004 acquires second operation data according to the acquired first operation data transmitted by the first motor 003, the first operation data represents the operation speed and/or operation angle of the needle 002 of the sewing machine, the second operation data is used for representing the operation speed and/or operation angle of the take-up lever 006, and then, the second motor 005 is controlled to drive the take-up lever 006 to take-up according to the second operation data. The relation between the second operation data and the first operation data is not fixed, and the relation can be changed according to the thickness, the toughness, different sewing threads and the like of a sewn target material.
Next, the relationship between the displacement and the angle of the needle 002 and the thread take-up lever 006 when the needle 002 and the thread take-up lever 006 are mechanically connected and the relationship between the displacement and the angle of the needle 002 and the thread take-up lever 006 in the sewing machine of the present application will be described by comparing fig. 4 and 5. Fig. 4 is a diagram showing the relationship between the displacement and the angle of the needle 002 and the thread take-up lever 006 when the needle 002 and the thread take-up lever 006 are mechanically connected according to the embodiment of the present application; fig. 5 is a diagram illustrating the relationship between the displacement and the angle of the needle 002 and the thread take-up lever 006 when the needle 002 and the thread take-up lever 006 are independently controlled according to the embodiment of the present application, wherein the position represents the position of the needle 002 and/or the thread take-up lever 006 corresponding to the angle of the needle 002 and/or the thread take-up lever 006 during the circular motion. As shown in fig. 4, the graph including the needle 002 and the thread take-up lever 006 shows that, as can be seen from fig. 4, when the needle 002 and the thread take-up lever 006 are mechanically connected, the angle and position relationship is fixed, and if the angle and position relationship between the needle 002 and the thread take-up lever 006 are changed, the mechanical connection between the needle 002 and the thread take-up lever 006 needs to be adjusted. As shown in fig. 5, the curve including the needle, the thread take-up lever 1 and the thread take-up lever 2 performs thread take-up by driving the thread take-up lever 006 independently by the second motor 005 in the present application, and the needle 002 is driven by the first motor 003, so that the angle and position relationship between the needle 002 and the thread take-up lever 006 can be dynamically adjusted without mechanical adjustment, and the curve of the thread take-up lever 1 and the thread take-up lever 2 can represent the curve of the thread take-up lever 006 with different target material thicknesses or the thread take-up lever curve of the target material with different toughness.
The manner of acquiring the first operation data by the first motor 003 is not limited in this application, and the first motor 003 may include an encoder, a photosensor, and the like, and the encoder is not limited in this application, and may be an incremental encoder, an absolute encoder, and the like.
Optionally, the first motor 003 may include an encoder; the encoder is used for acquiring the rotating speed and the grid of the first motor 003, and determining first operation data according to the rotating speed and the grid, wherein the grid represents the operation angle of the needle 002.
Wherein, the encoder is arranged at the center of the disc where the first motor 003 is located. The encoder can acquire the rotational speed and the grid in the rotation process of first motor 003, can obtain the functioning speed of eedle 002 according to the rotational speed of first motor 003, can obtain the functioning angle of eedle 002 according to the grid.
Optionally, the controller 004 is further configured to obtain the number of take-up needles of the take-up lever 006; judging whether the number of the picking needles exceeds a needle lifting threshold value; if not, controlling the second motor 005 to drive the take-up lever 006 to take up threads according to the needle-lifting operation data and the second operation data, wherein the needle-lifting operation data represents the operation speed and/or the operation angle required by the needle lifting of the target material; if yes, the second motor 005 is controlled to drive the thread take-up lever 006 to take up threads according to the second operation data.
When the sewing machine sews the target material in the needle raising stage, the operation speed of the thread take-up lever 006 is required to be small, and the position corresponding to the operation angle is large, so that the pulling of the upper thread can be weakened.
In the present application, the needle raising threshold is not specifically limited, and may be set according to specific situations, for example, the needle raising threshold may be set to 5 needles, and the needle raising threshold may also be set to 1 needle. When the number of the take-up needles of the take-up lever is within the set-up threshold, the take-up lever is in the set-up stage, and the second motor 005 is controlled to take-up the thread according to the set-up operating data and the second operating data.
It can be understood that, if the thread take-up lever 006 is in the needle-up stage, the operating speed and/or the operating angle of the thread take-up lever 006 needs to be adjusted based on the operating speed and/or the operating angle corresponding to the second operating data to meet the required operating speed and/or operating angle in the needle-up stage. For example, the operation speed may be adjusted to be lower or the operation angle of the thread take-up lever may be adjusted to make the thread take-up position of the thread take-up lever 006 more displaced from the initial position, thereby achieving a better needle raising effect.
Optionally, the controller 004 is further configured to obtain the thickness of the target material; judging whether the thickness of the target material exceeds a thickness threshold value; if yes, the second motor 005 is controlled to drive the take-up lever 006 to take up the thread according to the thick material operation data and the second operation data, and the thick material operation data represents the operation speed and/or the operation angle required by the take-up when the target material is thick material; if not, the second motor 005 is controlled to drive the thread take-up lever 006 to take up threads according to the thin material operation data and the second operation data, and the thin material operation data represents the operation speed and/or the operation angle required by the take-up when the target material is a thin material.
The operation speed and/or the operation angle of the take-up lever required by the thick material and the thin material are different, whether the target material is the thick material or the thin material is judged by setting a thickness threshold, the setting of the thickness threshold is not limited, and the setting can be 5 millimeters (mm) for example.
Alternatively, the thread take-up lever 006 performs a circular motion driven by the second motor 005; the controller 004 is also used for acquiring the running angle of the needle 002; judging whether the operation angle is equal to a first operation angle, which is an operation angle when the take-up lever 006 is at the highest position; if yes, the second motor 005 is controlled to drive the take-up lever 006 to descend; if not, the second motor 005 is controlled to drive the thread take-up lever 006 to take up thread according to the second operation data.
Wherein, the thread take-up lever 006 is driven by the second motor 005 to perform a circular motion, and in the motion process, the thread take-up lever 006 has a highest position and a lowest position, and the thread take-up lever 006 descends at the highest position and ascends at the lowest position to complete a complete sewing process. In the sewing process of the sewing machine, the needle 002 can be set to be at the first operating angle when the thread take-up lever 006 is at the highest position, and when the controller acquires that the operating angle of the needle 002 is the first operating angle, the second motor 005 is controlled to drive the thread take-up lever 006 to descend.
Further, the controller 004 is also used for acquiring the operation angle of the needle 002; judging whether the operation angle is equal to a second operation angle, which is an operation angle when the thread take-up lever 006 is at the lowest position; if yes, the second motor 005 is controlled to drive the take-up lever 006 to ascend; if not, the second motor 005 is controlled to drive the thread take-up lever 006 to take up thread according to the second operation data.
Wherein, the thread take-up lever 006 is driven by the second motor 005 to perform a circular motion, and in the motion process, the thread take-up lever 006 has a highest position and a lowest position, and the thread take-up lever 006 descends at the highest position and ascends at the lowest position to complete a complete sewing process. In the sewing process of the sewing machine, it may be set that the needle 002 is at the second operating angle when the thread take-up lever 006 is at the lowest position, and when the controller 004 obtains that the operating angle of the needle 002 is at the second operating angle, the second motor 005 is controlled to drive the thread take-up lever 006 to ascend.
In the present application, the setting of the first operating angle and the second operating angle is not limited, for example, the first operating angle may be set to 53 degrees, and the position corresponding to 53 degrees should be the highest position of the thread take-up lever 0006, that is, 53 degrees is used as the reference for the next working circle of the thread take-up lever 006, the second operating angle is set to 300 degrees, and 300 degrees is used as the determination angle for lowering the thread take-up lever 006 to the lowest position, so as to plan the rising angle; the setting can also be performed according to different winding-up forces, for example, the controller 004 can control winding-up processes in different stages, for example, the same winding-up stroke, one is a process of completing the lowest to highest of the thread take-up lever 006 from 300 degrees of the main shaft to 53 degrees of the second turn, wherein the first operating angle is set to 53 degrees, the second operating angle is set to 300 degrees, and the other is a process of completing the lowest to highest of the thread take-up lever 006 from 300 degrees of the main shaft to 350 degrees of the turn, wherein the first operating angle is set to 350 degrees, the second operating angle is set to 300 degrees, and the winding-up forces are different; alternatively, the take-up lever 006 may be raised from 320 degrees at the lowest take-up position at 300 to 320 degrees, wherein the first operating angle is set to 300 degrees and 320 degrees.
Optionally, the controller 004 is further configured to obtain sewing pattern data of the target material, where the sewing pattern data includes the number of sewing needles; judging whether the last stitch is formed according to the sewing pattern data and the number of the thread picking stitches; if yes, ending sewing.
Wherein, the sewing pattern data includes data such as the number of sewing needles required for sewing the target material, the controller 004 obtains the number of sewing needles and the number of take-up needles, and if the number of take-up needles is equal to the number of sewing needles, the second motor 005 is controlled to drive the take-up lever 006 to perform sewing of the last needle, and the sewing task is finished.
Further, in the sewing process of the target material, when the thickness of the target material changes, the setting can be carried out in the sewing pattern data. As is exemplary. Can set up when sewing to the thickness change's of target material the needle number, stop sewing, carry out the thickness change work of target material, after accomplishing, then controller 004 control second motor 005 drive take-up lever 006 carries out the take-up according to the thickness of target material, accomplishes to sew.
The application embodiment provides a sewing machine take-up equipment includes: a first motor 003, a needle 002, a controller 004, a second motor 005 and a thread take-up lever 006; the first motor 003 is respectively connected with the needle 002 and the controller 004; the second motor 005 is connected with the controller 004 and the thread take-up lever 006; the first motor 003 is used for driving the needle 002 to penetrate through a target material to form a wire loop and sending first operation data to the controller 004, wherein the first operation data are used for representing the operation speed and/or the operation angle of the needle 002; a controller 004 for determining second operation data according to the first operation data, the second operation data being used for representing the operation speed and/or operation angle of the take-up lever 006; the second motor 005 is controlled to drive the thread take-up lever 006 to take up thread according to the second operation data. Compared with the prior art, the equipment provided by the embodiment of the application drives the take-up lever to take-up thread by arranging the second motor, and realizes that the running speed and/or the running angle of the take-up lever are dynamically adjusted according to the running speed and/or the running angle of the needle by independently driving the needle and the take-up lever, so that the take-up effect of the sewing machine is improved.
The technical solutions of the embodiments of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 6 is a schematic flow chart of a method for controlling thread take-up of a sewing machine according to an embodiment of the present application, in which an execution main body of the embodiment of the present application is a controller, and relates to a specific process of thread take-up of a sewing machine. As shown in fig. 6, the method includes:
s101, first operation data sent by a first motor are obtained.
Wherein the first operational data is indicative of the operational speed and/or the operational angle of the needle. The first motor drives the needle to penetrate through the target material at a certain running speed and/or running angle through the circular motion of the first motor to form a wire loop. The first motor sends the first operating data to the controller.
In this application, the obtaining manner of the first operation data is not limited, and for example, the first motor includes: and the encoder is used for acquiring the rotating speed and the grid of the first motor and determining first operation data according to the rotating speed and the grid, and the grid represents the operation angle of the needle.
The encoder is arranged in the center of the disc where the first motor is located. The encoder can acquire the rotating speed and the grids of the first motor in the rotating process, the operating speed of the needle can be obtained according to the rotating speed of the first motor, and the operating angle of the needle can be obtained according to the grids.
And S102, determining second operation data according to the first operation data.
Wherein the second operating data characterize the operating speed and/or the operating angle of the take-up lever.
S103, controlling a second motor to drive the take-up lever to take up the thread according to second operation data.
The controller determines the operating speed and/or the operating angle required by the take-up lever according to the operating speed and/or the operating angle of the needle to obtain second operating data, and then controls the second motor to drive the take-up lever to take up according to the second operating data.
In the sewing process of the target material, the thread take-up process of the thread take-up lever needs to be adjusted according to the operating speed and/or the operating angle of the needle, after the controller acquires second operating data, the second motor can be directly controlled to drive the thread take-up lever to take up thread according to the second operating data, and the adjustment can also be performed according to specific conditions, for example, the controller can control the second motor to drive the thread take-up lever to take up thread according to the operating speed and/or the operating angle required in the processes that the thread take-up lever is in the needle take-up state, thick materials, thin materials, the last needle, the thread take-up lever descends from the highest position, the thread take-up lever ascends from the lowest position and the like, and the second operating data are combined.
Optionally, the controller is further configured to obtain the number of take-up needles of the take-up lever; judging whether the number of the picking needles exceeds a needle lifting threshold value; if not, controlling a second motor to drive the take-up lever to take up threads according to the needle-lifting operation data and the second operation data, wherein the needle-lifting operation data represents the operation speed and/or the operation angle required by the needle lifting of the target material; and if so, controlling a second motor to drive the take-up lever to take up the thread according to the second operation data.
When the sewing machine sews the target material in the needle raising stage, the operation speed of the take-up lever is small, the position corresponding to the operation angle is large, and the pulling of the upper thread can be weakened.
In the present application, the needle raising threshold is not specifically limited, and may be set according to specific situations, for example, the needle raising threshold may be set to 5 needles, and the needle raising threshold may also be set to 1 needle. And when the number of the take-up needles of the take-up lever is within the take-up threshold, the take-up lever is in the take-up stage, and the second motor is controlled to take-up according to the take-up operation data and the second operation data.
It can be understood that, if the thread take-up lever is in the needle-up stage, the operating speed and/or the operating angle of the thread take-up lever needs to be adjusted on the basis of the operating speed and/or the operating angle corresponding to the second operating data so as to meet the required operating speed and/or operating angle in the needle-up stage. For example, the running speed can be reduced or the running angle of the thread take-up lever can be adjusted to ensure that the thread take-up position of the thread take-up lever is displaced more relative to the initial position, so that better needle raising effect is obtained.
Optionally, the controller is further configured to obtain a thickness of the target material; judging whether the thickness of the target material exceeds a thickness threshold value; if so, controlling a second motor to drive the thread take-up lever to take up threads according to the thick material operation data and the second operation data, wherein the thick material operation data represents the operation speed and/or the operation angle required by the take-up when the target material is thick material; and if not, controlling a second motor to drive the thread take-up lever to take up threads according to the thin material operation data and the second operation data, wherein the thin material operation data represents the operation speed and/or the operation angle required by take-up when the target material is a thin material.
The operation speed and/or the operation angle of the take-up lever required by the thick material and the thin material are different, whether the target material is the thick material or the thin material is judged by setting a thickness threshold, the setting of the thickness threshold is not limited, and the setting can be 5 millimeters (mm) for example.
Optionally, the take-up lever is driven by the second motor to perform circular motion; the controller is also used for acquiring the operation angle of the needle; judging whether the operation angle is equal to a first operation angle, wherein the first operation angle is the operation angle when the take-up lever is at the highest position; if yes, controlling a second motor to drive the take-up lever to descend; and if not, controlling a second motor to drive the take-up lever to take up the yarn according to the second operation data.
The take-up lever is driven by the second motor to do circular motion, and in the motion process, the take-up lever has a highest position and a lowest position, and descends at the highest position and ascends at the lowest position to complete a complete sewing process. In the sewing process of the sewing machine, the first operation angle of the needle can be set to be the operation angle when the take-up lever is at the highest position, and when the operation angle of the needle acquired by the controller is the first operation angle, the second motor is controlled to drive the take-up lever to descend.
Further, the controller is also used for acquiring the operation angle of the needle; judging whether the operation angle is equal to a second operation angle, wherein the second operation angle is the operation angle when the take-up lever is at the lowest position; if yes, controlling a second motor to drive the take-up lever to ascend; and if not, controlling a second motor to drive the take-up lever to take up the yarn according to the second operation data.
The take-up lever is driven by the second motor to do circular motion, and in the motion process, the take-up lever has a highest position and a lowest position, and descends at the highest position and ascends at the lowest position to complete a complete sewing process. In the sewing process of the sewing machine, the operation angle of the needle at the second operation angle is set to be the operation angle when the take-up lever is at the lowest position, and when the operation angle of the needle acquired by the controller is the second operation angle, the controller controls the second motor to drive the take-up lever to ascend.
In the present application, the setting of the first operating angle and the second operating angle is not limited, for example, the first operating angle may be set to 53 degrees, and the position corresponding to 53 degrees should be the highest position of the take-up lever, that is, 53 degrees is used as the reference of the next working turn of the take-up lever, the second operating angle is set to 300 degrees, and 300 degrees is used as the determination angle for lowering the take-up lever to the lowest position, so as to plan the rising angle; the take-up device can also be set according to different take-up forces, for example, the controller can control take-up processes in different stages, for example, the same take-up stroke, one is a process of completing the lowest to the highest take-up lever from 300 degrees of the main shaft to 53 degrees of the second circle, wherein the first operating angle is set to 53 degrees, the second operating angle is set to 300 degrees, the other is a process of completing the lowest to the highest take-up lever from 300 degrees of the main shaft to 350 degrees of the circle, wherein the first operating angle is set to 350 degrees, the second operating angle is set to 300 degrees, and the take-up forces are different; the yarn take-up lever can also be selected to be at the lowest take-up position from 300 degrees to 320 degrees, and the lifting action of the yarn take-up lever is started from 320 degrees, wherein the first operation angle is set to be 300 degrees and 320 degrees.
Optionally, the controller is further configured to obtain sewing pattern data of the target material, where the sewing pattern data includes a sewing needle number; judging whether the last stitch is formed according to the sewing pattern data and the number of the thread picking stitches; if yes, ending sewing.
The sewing pattern data comprises data such as sewing needle number required by sewing target materials, the controller acquires the sewing needle number and the thread take-up needle number, and if the thread take-up needle number is equal to the sewing needle number, the controller controls the second motor to drive the thread take-up rod to sew the last needle, and the sewing task is finished.
Further, in the sewing process of the target material, when the thickness of the target material changes, the setting can be carried out in the sewing pattern data. As is exemplary. The sewing machine can stop sewing when the number of needles sewing the target material with the thickness changing is larger than the number of needles sewing the target material with the thickness changing, the thickness changing work of the target material is carried out, and after the sewing is finished, the controller controls the take-up lever to take up threads according to the thickness of the target material, so that the sewing is finished.
The control method of the sewing machine thread take-up provided by the embodiment of the application is applied to a controller of a sewing machine thread take-up device, and comprises the following steps: firstly, first operation data sent by a first motor are obtained, and the first operation data represent the operation speed and/or the operation angle of a needle; then, according to the first operation data, determining second operation data, wherein the second operation data represents the operation speed and/or the operation angle of the take-up lever; and finally, controlling a second motor to drive the take-up lever to take up the thread according to second operation data. Compared with the prior art, the operation data of the take-up lever is dynamically adjusted according to the operation data of the machine needle, so that the operation data of the take-up lever can be changed without adjusting the mechanical connection relation between the machine needle and the take-up lever, and the take-up effect of the sewing machine is improved.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
The embodiment of the application also provides a chip which comprises a processor and an interface. Wherein the interface is used for inputting and outputting data or instructions processed by the processor. The processor is configured to perform the methods provided in the above method embodiments. The chip can be applied to a thread take-up device of a sewing machine.
The present application also provides a computer-readable storage medium, which may include: the thread take-up control system includes various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and specifically, the computer readable storage medium stores program information, and the program information is used for the thread take-up control method of the sewing machine.
The embodiment of the application also provides a program which is used for executing the control method for the thread take-up of the sewing machine provided by the method embodiment when the program is executed by a processor.
The embodiment of the application also provides a program product, such as a computer readable storage medium, which stores instructions that when run on a computer, make the computer execute the control method for thread take-up of the sewing machine provided by the above method embodiment.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the invention are brought about in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A thread take-up apparatus for a sewing machine, the apparatus comprising: the device comprises a first motor, a needle, a controller, a second motor and a take-up lever; the first motor is respectively connected with the needle and the controller; the second motor is respectively connected with the controller and the take-up lever;
the first motor is used for driving the needle to penetrate through a target material to form a wire loop and sending first operation data to the controller, and the first operation data is used for representing the operation speed and/or the operation angle of the needle;
the controller is used for determining second operation data according to the first operation data, and the second operation data are used for representing the operation speed and/or the operation angle of the take-up lever; and controlling the second motor to drive the take-up lever to take up the thread according to the second operation data.
2. The apparatus according to claim 1, wherein the controller is further configured to obtain the number of the thread take-up needles of the thread take-up lever; judging whether the number of the take-up needles exceeds a needle lifting threshold value; and if not, controlling the second motor to drive the take-up lever to take up the thread according to the needle-lifting operation data and the second operation data, wherein the needle-lifting operation data represents the operation speed and/or the operation angle required by the needle lifting of the target material.
3. The apparatus of claim 1, wherein the controller is further configured to obtain a thickness of the target material; judging whether the thickness of the target material exceeds a thickness threshold value; if so, controlling the second motor to drive the thread take-up lever to take up threads according to thick material operation data and the second operation data, wherein the thick material operation data represents the operation speed and/or the operation angle required by take-up when the target material is thick material; and if not, controlling the second motor to drive the thread take-up lever to take up threads according to thin material operation data and the second operation data, wherein the thin material operation data represents the operation speed and/or the operation angle required by take-up when the target material is a thin material.
4. The apparatus according to claim 1, wherein the thread take-up lever performs a circular motion under the driving of the second motor; the controller is also used for acquiring the operation angle of the needle; judging whether the operation angle is equal to a first operation angle, wherein the first operation angle is the operation angle when the take-up lever is at the highest position; if yes, the second motor is controlled to drive the take-up lever to descend.
5. The apparatus of claim 1, wherein the controller is further configured to obtain an operating angle of the needle; judging whether the operation angle is equal to a second operation angle, wherein the second operation angle is the operation angle when the take-up lever is at the lowest position; and if so, controlling the second motor to drive the take-up lever to ascend.
6. The apparatus of claim 1, wherein the controller is further configured to obtain sewing pattern data of the target material, the sewing pattern data including a number of sewing needles; judging whether the last stitch is formed according to the sewing pattern data and the number of the thread picking stitches; if yes, ending sewing.
7. The apparatus of any of claims 1-6, wherein the first motor comprises: an encoder;
the encoder is used for acquiring the rotating speed and the grid of the first motor and determining the first operation data according to the rotating speed and the grid, wherein the grid represents the operation angle of the needle.
8. A method for controlling thread take-up of a sewing machine, the sewing machine comprising: the device comprises a first motor, a needle, a controller, a second motor and a take-up lever; the first motor is respectively connected with the needle and the controller; the second motor is respectively connected with the controller and the take-up lever; applied to the controller, the method comprises:
acquiring first operation data sent by the first motor, wherein the first operation data represents the operation speed and/or the operation angle of the needle;
determining second operation data according to the first operation data, wherein the second operation data represent the operation speed and/or the operation angle of the take-up lever;
and controlling the second motor to drive the take-up lever to take up the thread according to the second operation data.
9. A computer-readable storage medium for storing a computer program which causes a computer to perform the method as claimed in claim 8.
10. A computer program product comprising a computer program, characterized in that the computer program realizes the method as claimed in claim 8 when executed by a processor.
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| CN202110295126.6A CN113026230A (en) | 2021-03-19 | 2021-03-19 | Sewing machine thread take-up device and sewing machine thread take-up control method |
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| CN202110295126.6A CN113026230A (en) | 2021-03-19 | 2021-03-19 | Sewing machine thread take-up device and sewing machine thread take-up control method |
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