CN109554845B - Sewing machine and broken thread detection control device thereof - Google Patents
Sewing machine and broken thread detection control device thereof Download PDFInfo
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- CN109554845B CN109554845B CN201910073100.XA CN201910073100A CN109554845B CN 109554845 B CN109554845 B CN 109554845B CN 201910073100 A CN201910073100 A CN 201910073100A CN 109554845 B CN109554845 B CN 109554845B
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B51/00—Applications of needle-thread guards; Thread-break detectors
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/36—Devices for stopping drive when abnormal conditions occur, e.g. thread breakage
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2205/00—Interface between the operator and the machine
- D05D2205/12—Machine to the operator; Alarms
- D05D2205/16—Display arrangements
- D05D2205/18—Screens
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2305/00—Operations on the work before or after sewing
- D05D2305/32—Measuring
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- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a sewing machine and a thread breakage detection control device thereof, comprising: a thread clamping device which is arranged on the shell of the sewing machine and is provided with a thread take-up spring; the thread take-up spring is used for being matched with the sewing thread when the sewing machine sews normally so as to enable the thread take-up spring to be continuously contacted with and separated from the thread breakage detection device; when the sewing thread is broken, the sewing thread is in a normal contact state with the thread breakage detection device; the broken wire detection device is arranged on the shell and used for generating a communication signal when the broken wire detection device is contacted with the take-up spring; generating a disconnection signal when being separated from the thread take-up spring; the controller is connected with the output end of the broken thread detection device and is used for determining that the sewing machine is not broken after receiving the on-off signal; determining that the sewing machine is broken after only the communication signal is received, and immediately controlling a driving motor of the sewing machine to stop; the on-off signal comprises a circularly generated on-off signal and a circularly generated off-off signal. Therefore, the automatic stop of the sewing machine is realized after the thread of the sewing thread is broken, and the sewing effect is good.
Description
Technical Field
The invention relates to the field of sewing machines, in particular to a sewing machine and a thread breakage detection control device thereof.
Background
Sewing machines are widely used in industrial fields, where one or more sewing threads are used to form one or more stitches in a material to be sewn, to interlace or stitch together one or more layers of the material. Therefore, the sewing machine must perform a normal sewing operation with the aid of the sewing thread, and if the sewing thread is broken, the sewing machine cannot perform the normal sewing operation. However, the sewing machine can be stopped after the sewing machine continues to sew for a certain distance due to inertia after the thread is broken, so that the sewing effect is poor.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a sewing machine thread breakage detection and control device and a sewing machine, which can realize automatic stop of the sewing machine after thread breakage of the sewing thread and have better sewing effect.
In order to solve the above technical problem, the present invention provides a sewing machine thread breakage detection control device, including:
a thread clamping device which is arranged on the shell of the sewing machine and is provided with a thread take-up spring; the thread take-up spring is used for being matched with the sewing thread when the sewing machine sews normally so as to enable the thread take-up spring to be continuously contacted with and separated from the thread breakage detection device; when the sewing thread is broken, the sewing thread is in constant contact with the thread breakage detection device;
the broken wire detection device is arranged on the shell and used for generating a communication signal when the broken wire detection device is contacted with the take-up spring; generating a disconnection signal when being separated from the thread take-up spring;
the controller is connected with the output end of the broken thread detection device and is used for determining that the sewing machine is not broken after receiving the on-off signal; determining that the sewing machine is broken after only the communication signal is received, and immediately controlling a driving motor of the sewing machine to stop; wherein the on-off signal comprises the on signal and the off signal which are generated in a circulating mode.
Preferably, the disconnection detecting device includes:
the output end of the induction copper sheet is used as the output end of the broken wire detection device and is used for generating a high-level signal when the induction copper sheet is contacted with the wire picking spring; generating a low level signal when separated from the take-up spring;
and the insulating plate is used for insulating the induction copper sheet from the shell.
Preferably, the sewing machine thread breakage detection control apparatus further includes:
the alarm is connected with the controller;
the controller is also used for controlling the alarm to give an alarm when the sewing machine is determined to be broken, automatically removing the alarm when the alarm time of the alarm reaches a preset time threshold value, and controlling the driving motor to be started so that a user can conveniently thread the sewing machine within the alarm time, and sewing can be continuously carried out after the driving motor is started.
Preferably, the alarm is embodied as a display panel for displaying alarm information.
Preferably, the controller is further configured to detect whether the sewing machine is still in a thread breakage state at present after the sewing machine continues to perform sewing, determine that the sewing machine does not thread, and return to perform a series of operation steps after determining that the sewing machine breaks the thread until the sewing machine threads the thread when the number of needles that the sewing machine continues to sew reaches a preset needle number threshold; if not, determining that the sewing machine is threaded, and enabling the sewing machine to enter normal sewing.
Preferably, the preset needle count threshold is specifically 3 needles.
Preferably, the controller is further configured to not perform a disconnection detection function after receiving the shutdown detection instruction; and after receiving the starting detection instruction, re-executing the disconnection detection function so as to meet different operation requirements of the user.
Preferably, the thread take-up spring is also used for enabling the thread take-up spring and the thread breakage detection device to be in a normally separated state according to the requirement of closing the thread breakage detection function of the sewing machine;
correspondingly, the controller is also used for determining that the take-up spring and the broken wire detection device are in a normally separated state after only receiving the disconnection signal, and controlling the controller not to execute a broken wire detection function; and controlling the self to execute a disconnection detection function after the communication signal is received again.
In order to solve the technical problem, the invention also provides a sewing machine which comprises any one of the sewing machine thread breakage detection and control devices.
The invention provides a sewing machine thread breakage detection control device, comprising: a thread clamping device which is arranged on the shell of the sewing machine and is provided with a thread take-up spring; the thread take-up spring is used for being matched with the sewing thread when the sewing machine sews normally so as to enable the thread take-up spring to be continuously contacted with and separated from the thread breakage detection device; when the sewing thread is broken, the sewing thread is in a normal contact state with the thread breakage detection device; the broken wire detection device is arranged on the shell and used for generating a communication signal when the broken wire detection device is contacted with the take-up spring; generating a disconnection signal when being separated from the thread take-up spring; the controller is connected with the output end of the broken thread detection device and is used for determining that the sewing machine is not broken after receiving the on-off signal; determining that the sewing machine is broken after only the communication signal is received, and immediately controlling a driving motor of the sewing machine to stop; the on-off signal comprises a circularly generated on-off signal and a circularly generated off-off signal.
Therefore, the thread breakage detection device can autonomously detect the thread breakage information of the sewing thread by utilizing the thread clamping device to be matched with the thread breakage detection device. And the thread breakage detection device can send thread breakage information to the controller, so that the controller immediately controls the driving motor of the sewing machine to stop after the thread of the sewing machine is broken, the automatic stop of the sewing machine is realized after the thread of the sewing machine is broken, and the sewing effect is further improved.
The invention also provides a sewing machine which has the same beneficial effects as the sewing machine.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a sewing machine thread breakage detection control device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a wire gripper shown in fig. 1 according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the disconnection detecting apparatus shown in fig. 1 according to an embodiment of the present invention.
Detailed Description
The core of the invention is to provide a sewing machine and a thread breakage detection and control device thereof, which can realize the automatic stop of the sewing machine after the thread breakage of the sewing thread and have better sewing effect.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a sewing machine thread breakage detection control device according to an embodiment of the present invention.
This sewing machine broken string detects controlling means includes:
a thread clamping device 2 which is arranged on a shell 1 of the sewing machine and is provided with a thread take-up spring 21; the thread take-up spring 21 is used for being matched with the sewing thread when the sewing machine sews normally so as to lead the thread take-up spring to be contacted with and separated from the thread breakage detection device 3 continuously; when the sewing thread is broken, the sewing thread is in a normal contact state with the thread breakage detection device 3;
a disconnection detecting means 3 provided on the housing 1 for generating a connection signal when contacting the thread take-up spring 21; when separated from the take-up spring 21, a turn-off signal is generated;
the controller is connected with the output end of the thread breakage detection device 3 and is used for determining that the sewing machine is not broken after receiving the on-off signal; determining that the sewing machine is broken after only the communication signal is received, and immediately controlling a driving motor of the sewing machine to stop; the on-off signal comprises a circularly generated on-off signal and a circularly generated off-off signal.
Specifically, the sewing machine thread breakage detection control device of the present application includes a thread clamp 2, a thread breakage detection device 3, and a controller (not shown in fig. 1), and its operating principle is:
as shown in fig. 1, the thread tension 2 and the thread breakage detecting device 3 are both mounted on the housing 1 of the sewing machine, and the thread tension 2 is located below the thread breakage detecting device 3. The thread take-up spring 21 is arranged on the thread clamp 2 (fig. 2 is a detailed view of the thread clamp 2), when the sewing machine sews normally, the sewing thread passes through the thread take-up spring 21 on the thread clamp 2 to drive the thread take-up spring 21 to move, so that the thread take-up spring 21 and the thread breakage detection device 3 are in continuous contact and separation (namely, when the sewing machine sews normally, the thread take-up spring 21 and the thread breakage detection device 3 are in circular contact, separation, contact and separation … …). When the sewing thread is broken, the sewing thread cannot drive the thread take-up spring 21 to continue moving, and the thread take-up spring 21 and the thread breakage detecting device 3 are in a normally contact state (i.e. when the sewing thread is broken, the thread take-up spring 21 and the thread breakage detecting device 3 are always in contact).
The disconnection detecting device 3 can detect the contact of itself with the thread take-up spring 21 and send it to the controller. Specifically, the disconnection detecting device 3 generates a connection signal when it comes into contact with the thread take-up spring 21; the disconnection detecting device 3 generates a disconnection signal when it is separated from the take-up spring 21. That is, when the sewing machine is normally sewing, since the thread take-up spring 21 is continuously in contact with and separated from the thread breakage detecting device 3, the thread breakage detecting device 3 continuously generates the connection signal and the disconnection signal (that is, when the sewing machine is normally sewing, the thread breakage detecting device 3 cyclically generates the connection signal, the disconnection signal, the connection signal and the disconnection signal … …), so that the controller receives the connection signal and the disconnection signal which are cyclically generated under the condition. When the sewing thread is broken, since the thread take-up spring 21 is in a normally contact state with the thread breakage detecting device 3, the thread breakage detecting device 3 continuously generates the communicating signal, so that the controller receives the normally communicating signal consisting of the continuously generated communicating signal in this case.
In conclusion, the controller determines that the sewing machine is not broken after receiving the on-off signal and is in a normal sewing state; the controller determines that the sewing machine is broken after receiving the normally connected signal, namely, determines that the sewing machine is broken after only receiving the connected signal.
The invention provides a sewing machine thread breakage detection control device, comprising: a thread clamping device which is arranged on the shell of the sewing machine and is provided with a thread take-up spring; the thread take-up spring is used for being matched with the sewing thread when the sewing machine sews normally so as to enable the thread take-up spring to be continuously contacted with and separated from the thread breakage detection device; when the sewing thread is broken, the sewing thread is in a normal contact state with the thread breakage detection device; the broken wire detection device is arranged on the shell and used for generating a communication signal when the broken wire detection device is contacted with the take-up spring; generating a disconnection signal when being separated from the thread take-up spring; the controller is connected with the output end of the broken thread detection device and is used for determining that the sewing machine is not broken after receiving the on-off signal; determining that the sewing machine is broken after only the communication signal is received, and immediately controlling a driving motor of the sewing machine to stop; the on-off signal comprises a circularly generated on-off signal and a circularly generated off-off signal.
Therefore, the thread breakage detection device can autonomously detect the thread breakage information of the sewing thread by utilizing the thread clamping device to be matched with the thread breakage detection device. And the thread breakage detection device can send thread breakage information to the controller, so that the controller immediately controls the driving motor of the sewing machine to stop after the thread of the sewing machine is broken, the automatic stop of the sewing machine is realized after the thread of the sewing machine is broken, and the sewing effect is further improved.
On the basis of the above-described embodiment:
referring to fig. 3, fig. 3 is a schematic structural diagram of a disconnection detecting device shown in fig. 1 according to an embodiment of the present invention.
As an alternative embodiment, the disconnection detecting device 3 includes:
the induction copper sheet 31 with the output end as the output end of the broken wire detection device 3 is used for generating a high-level signal when contacting with the take-up spring 21; when separated from the take-up spring 21, a low level signal is generated;
and the insulating plate 32 is used for insulating the induction copper sheet 31 from the machine case 1.
Specifically, the disconnection detecting device 3 of the present application includes an induction copper sheet 31 and an insulating sheet 32, and its operating principle is:
the breakage detecting device 3 is in contact with the thread take-up spring 21, actually, the sensing copper piece 31 is in contact with the thread take-up spring 21, and sends the contact condition of the breakage detecting device itself with the thread take-up spring 21 to the controller. Specifically, the induction copper sheet 31 generates a high level signal when contacting with the take-up spring 21; the sensing copper piece 31 generates a low level signal when it is separated from the thread take-up spring 21. That is, when the sewing machine is normally sewing, since the thread take-up spring 21 is continuously contacted with and separated from the sensing copper sheet 31, the sensing copper sheet 31 continuously generates a high level signal and a low level signal (i.e., when the sewing machine is normally sewing, the sensing copper sheet 31 cyclically generates the high level signal, the low level signal, the high level signal and the low level signal … …), so that the controller receives the high level signal and the low level signal which are cyclically generated. When the sewing thread is broken, since the thread take-up spring 21 is in a normally contact state with the sensing copper plate 31, the sensing copper plate 31 continuously generates a high level signal, so that the controller receives only the high level signal in this case.
In conclusion, the controller determines that the sewing machine is not broken after receiving the high-low level signal and is in a normal sewing state; the controller determines that the sewing machine is broken after receiving only the high level signal.
In addition, according to the application, the insulation plate 32 is additionally arranged between the induction copper sheet 31 and the machine shell 1, so that the induction copper sheet 31 and the machine shell 1 are insulated, and the safety and the reliability of the broken wire detection device 3 are improved.
As an optional embodiment, the sewing machine thread breakage detection control apparatus further includes:
the alarm is connected with the controller;
the controller is also used for controlling the alarm to give an alarm when the sewing machine is determined to be broken, automatically removing the alarm when the alarm time of the alarm reaches a preset time threshold value, and controlling the driving motor to be started so that a user can conveniently thread the sewing machine within the alarm time, and sewing can be continuously carried out after the driving motor is started.
It should be noted that the preset of the present application is set in advance, and only needs to be set once, and the reset is not needed unless the modification is needed according to the actual situation.
Furthermore, the sewing machine thread breakage detection control device further comprises an alarm controlled by the controller, and the controller can control the alarm to give an alarm when the thread breakage of the sewing machine is determined, so that a user is reminded of thread breakage of the sewing machine, and the user can timely thread the sewing machine after the thread breakage of the sewing machine.
Meanwhile, the controller starts timing when the control alarm gives an alarm, and when the timing time (equal to the alarm time) reaches a preset time threshold, the control alarm stops giving the alarm and controls a driving motor of the sewing machine to be started, so that the alarm is automatically released. The user can continue sewing after the alarm is automatically released.
As an alternative embodiment, the alarm is embodied as a display panel for displaying alarm information.
Specifically, the alarm of the present application may be, but is not limited to, a display panel for displaying alarm information (for example, displaying an alarm code indicating a thread breakage of a sewing machine), and the present application is not particularly limited thereto.
As an optional embodiment, the controller is further configured to detect whether the sewing machine is still in a thread breakage state at present after the sewing machine continues to perform sewing, determine that the sewing machine does not thread, and return to performing a series of operation steps after determining that the sewing machine breaks the thread when the number of needles that the sewing machine continues to perform sewing reaches a preset number-of-needles threshold value until the sewing machine passes the thread; if not, determining that the sewing machine is threaded, and enabling the sewing machine to enter normal sewing.
Further, considering that the user may not put through the sewing thread of the sewing machine during the alarm of the alarm, if the user continues to sew after the alarm is automatically released, the sewing position is completely empty, and the sewing effect is affected. Therefore, the method sets a needle number threshold in advance, and the controller detects whether the sewing machine is still in a thread breakage state at present (the method is the same as the detection principle, and the method is not repeated herein) after the sewing machine continues sewing, if the sewing machine is still in the thread breakage state at present, the sewing machine is determined not to thread, and at the moment, the controller returns to execute a series of operation steps after the thread breakage of the sewing machine is determined when the needle number of the sewing machine continues sewing reaches the set needle number threshold: controlling a driving motor of the sewing machine to stop and controlling an alarm to give an alarm (the alarm time is used for a user to thread the sewing machine); when the alarm time of the alarm reaches a preset time threshold value, the alarm is automatically released, and the driving motor of the sewing machine is controlled to be started. If the user does not thread, after the sewing machine continues to sew, the controller also returns to execute a series of operation steps after the thread of the sewing machine is determined to be broken when the number of needles which the sewing machine continues to sew reaches the set needle number threshold value, and the sewing machine can not enter normal sewing again until the sewing machine threads. If the sewing machine is in the state of not breaking the thread, the sewing machine is determined to have the thread, and the sewing machine can directly enter normal sewing.
As an alternative embodiment, the preset needle count threshold is specifically 3 needles.
Specifically, the preset needle count threshold of the present application may be set to, but is not limited to, 3 needles, and the present application is not particularly limited thereto.
As an optional embodiment, the controller is further configured to not perform the disconnection detection function after receiving the shutdown detection instruction; and after receiving the starting detection instruction, re-executing the disconnection detection function so as to meet different operation requirements of the user.
Further, the controller may also determine not to execute the thread breakage detecting function in accordance with a user instruction, considering that the user sometimes performs an operation such as an idle thread winding bobbin requiring the thread breakage detecting function of the sewing machine to be turned off (since the operation such as the idle thread winding bobbin requires the sewing machine to be not stopped, the operation such as the idle thread winding bobbin conflicts with the thread breakage detecting function of the sewing machine). Specifically, when the user needs to close the thread breakage detection function of the sewing machine, a closing detection instruction can be sent to the controller, and the controller does not execute the thread breakage detection function after receiving the closing detection instruction. When a user needs the sewing machine to execute the broken thread detection function again, the broken thread detection function can be executed again by the controller after the controller receives the opening detection instruction, and therefore different operation requirements of the user are met.
As an alternative embodiment, the thread take-up spring 21 is also used to keep itself in a normally separated state from the thread breakage detecting device 3, according to the need to shut down the thread breakage detecting function of the sewing machine;
correspondingly, the controller is also used for determining that the take-up spring 21 and the broken wire detection device 3 are in a normally separated state after only receiving the disconnection signal, and controlling the controller not to execute the broken wire detection function; and controlling the self to execute the disconnection detection function after the connection signal is received again.
Further, in addition to the manner of turning off the disconnection detection function mentioned in the above embodiment, the present application may also adopt another manner of turning off the disconnection detection function: the thread take-up spring 21 is separated from the thread breakage detecting device 3. Specifically, when a user needs to close the thread breakage detection function of the sewing machine, the thread take-up spring 21 is separated from the thread breakage detection device 3, so that the thread take-up spring 21 and the thread breakage detection device 3 are in a normally separated state, in this case, the controller cannot receive a connection signal all the time, and only receives a disconnection signal, the thread take-up spring 21 and the thread breakage detection device 3 are considered to be in a normally separated state, and the user is controlled not to execute the thread breakage detection function. When a user needs the sewing machine to execute the broken thread detection function again, the thread take-up spring 21 is restored to the corresponding position, the controller receives the communication signal again during normal sewing, and the broken thread detection function of the controller is restored after the communication signal is received.
The application also provides a sewing machine, which comprises any one of the sewing machine thread breakage detection control devices.
For the introduction of the sewing machine provided in the present application, please refer to the above-mentioned embodiments of the detection control device, which are not described herein again.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A sewing machine thread breakage detection control device is characterized by comprising:
a thread clamping device which is arranged on the shell of the sewing machine and is provided with a thread take-up spring; the thread take-up spring is used for being matched with the sewing thread when the sewing machine sews normally so as to enable the thread take-up spring to be continuously contacted with and separated from the thread breakage detection device; when the sewing thread is broken, the sewing thread is in constant contact with the thread breakage detection device;
the broken wire detection device is arranged on the shell and used for generating a communication signal when the broken wire detection device is contacted with the take-up spring; generating a disconnection signal when being separated from the thread take-up spring;
the controller is connected with the output end of the broken thread detection device and is used for determining that the sewing machine is not broken after receiving the on-off signal; determining that the sewing machine is broken after only the communication signal is received, and immediately controlling a driving motor of the sewing machine to stop; wherein the on-off signal comprises the on signal and the off signal which are generated in a circulating manner;
this sewing machine broken string detects controlling means still includes:
the alarm is connected with the controller;
the controller is also used for controlling the alarm to give an alarm when the sewing machine is determined to be broken, automatically removing the alarm when the alarm time of the alarm reaches a preset time threshold value, and controlling the driving motor to be started so that a user can conveniently thread the sewing machine within the alarm time to realize continuous sewing after the driving motor is started;
the controller is further used for detecting whether the sewing machine is still in a thread breakage state or not after the sewing machine continues to sew, if so, determining that the sewing machine does not thread, and returning to execute a series of operation steps after the thread breakage of the sewing machine is determined when the number of needles continuously sewn by the sewing machine reaches a preset needle number threshold value until the sewing machine threads; if not, determining that the sewing machine is threaded, and enabling the sewing machine to enter normal sewing.
2. The sewing machine thread breakage detection control apparatus according to claim 1, wherein the thread breakage detection apparatus comprises:
the output end of the induction copper sheet is used as the output end of the broken wire detection device and is used for generating a high-level signal when the induction copper sheet is contacted with the wire picking spring; generating a low level signal when separated from the take-up spring;
and the insulating plate is used for insulating the induction copper sheet from the shell.
3. The sewing machine thread breakage detection control apparatus according to claim 1, wherein the alarm is embodied as a display panel for displaying alarm information.
4. The sewing machine thread breakage detection control apparatus according to claim 1, wherein the preset needle count threshold value is 3 needles in particular.
5. The sewing machine thread breakage detection control apparatus according to any one of claims 1 to 4, wherein the controller is further configured not to perform a thread breakage detection function after receiving the closing detection instruction; and after receiving the starting detection instruction, re-executing the disconnection detection function so as to meet different operation requirements of the user.
6. The sewing machine thread breakage detection control device according to any one of claims 1 to 4, wherein the thread take-up spring is further configured to normally separate itself from the thread breakage detection device in accordance with a need to shut off a thread breakage detection function of the sewing machine;
correspondingly, the controller is also used for determining that the take-up spring and the broken wire detection device are in a normally separated state after only receiving the disconnection signal, and controlling the controller not to execute a broken wire detection function; and controlling the self to execute a disconnection detection function after the communication signal is received again.
7. A sewing machine characterized by comprising the sewing machine thread breakage detection control apparatus according to any one of claims 1 to 6.
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| CN201910073100.XA CN109554845B (en) | 2019-01-25 | 2019-01-25 | Sewing machine and broken thread detection control device thereof |
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| CN201910073100.XA CN109554845B (en) | 2019-01-25 | 2019-01-25 | Sewing machine and broken thread detection control device thereof |
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| CN110820187A (en) * | 2019-12-13 | 2020-02-21 | 谭英 | Intelligent full-automatic hot-melting winding machine |
| CN111560714B (en) * | 2020-05-26 | 2021-07-09 | 台州学院 | Sewing machine with automatic threading function |
| CN111560716B (en) * | 2020-05-26 | 2021-10-26 | 台州学院 | Automatic threading device in industrial sewing machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1157265A (en) * | 1997-08-21 | 1999-03-02 | Brother Ind Ltd | Abnormal thread tension detecting device for use with sewing machine |
| JP2003103080A (en) * | 2001-09-28 | 2003-04-08 | Brother Ind Ltd | Sewing machine |
| CN200988897Y (en) * | 2006-12-06 | 2007-12-12 | 中捷缝纫机股份有限公司 | Detector for broken thread of sewing machine |
| CN203653948U (en) * | 2013-12-16 | 2014-06-18 | 赵大启 | Stitching machine with automatic detection system |
| CN105926199A (en) * | 2016-06-27 | 2016-09-07 | 杰克缝纫机股份有限公司 | Thread-free alarming device and sewing machine |
| CN105937101A (en) * | 2016-06-24 | 2016-09-14 | 杰克缝纫机股份有限公司 | Sewing machine and broken stitch detection mechanism thereof |
| CN108893886A (en) * | 2018-09-13 | 2018-11-27 | 杭州恢弘科技有限公司 | A kind of sewing machine string-passing structure |
-
2019
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1157265A (en) * | 1997-08-21 | 1999-03-02 | Brother Ind Ltd | Abnormal thread tension detecting device for use with sewing machine |
| JP2003103080A (en) * | 2001-09-28 | 2003-04-08 | Brother Ind Ltd | Sewing machine |
| CN200988897Y (en) * | 2006-12-06 | 2007-12-12 | 中捷缝纫机股份有限公司 | Detector for broken thread of sewing machine |
| CN203653948U (en) * | 2013-12-16 | 2014-06-18 | 赵大启 | Stitching machine with automatic detection system |
| CN105937101A (en) * | 2016-06-24 | 2016-09-14 | 杰克缝纫机股份有限公司 | Sewing machine and broken stitch detection mechanism thereof |
| CN105926199A (en) * | 2016-06-27 | 2016-09-07 | 杰克缝纫机股份有限公司 | Thread-free alarming device and sewing machine |
| CN108893886A (en) * | 2018-09-13 | 2018-11-27 | 杭州恢弘科技有限公司 | A kind of sewing machine string-passing structure |
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Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |