CN203668659U - Sewing machine control device capable of accurately detecting needle position of sewing machine - Google Patents
Sewing machine control device capable of accurately detecting needle position of sewing machine Download PDFInfo
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- CN203668659U CN203668659U CN201420003175.3U CN201420003175U CN203668659U CN 203668659 U CN203668659 U CN 203668659U CN 201420003175 U CN201420003175 U CN 201420003175U CN 203668659 U CN203668659 U CN 203668659U
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- sewing machine
- needle
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Abstract
The utility model discloses a sewing machine control device capable of accurately detecting a needle position of a sewing machine. The control device comprises a magnetic steel mounted on a needle rod of the sewing machine and a linear Hall-effect sensor mounted under a sewing machine table, wherein as the needle moves along with the sewing machine, the magnetic field released by the magnetic steel mounted on the needle rod of the sewing machine triggers the linear Hall-effect sensor mounted under the sewing machine table to output voltage; the Hall-effect sensor is connected with an analog-digital converter and transmits signals reflecting needle positions of the sewing machine and sensed by the Hall-effect sensor to the analog-digital converter; and the analog-digital converter is connected with a central processing unit and sends digital signals to the central processing unit. The sewing machine control device provided by the utility model is reasonable in structure, and can continuously provide information on needle positions of the sewing machine for the central processing unit of a control system, thereby raising precision of a machine halt position of the system, enhancing reliability of automatic thread trimming and automatic thread stirring, and avoiding the phenomena that the needle of a conventional sewing machine is often broken by cutting or stirring.
Description
Technical field
The utility model relates to a kind of control device for sewing-machine.
Background technology
Industrial sewing machine has upper pin position and two of lower pin positions to stop pin position, and required precision is higher.When automatic shearing, when automatic poking line, Sewing machines requires after the signal of pin position, to carry out on detecting, requires system to stop pin in lower pin position in sewing process.On detection Sewing machines, the signal of pin position and lower pin position, is to be completed by the eedle locator that is installed on head of sewing machine (being again eedle synchronized).
This locator is made up of two blocks of opposite polarity magnet and the switching mode sensor that is fixed on head, magnet is followed motor rotation, in the time that head of sewing machine rotates to upper pin position or lower pin position, magnet on flywheel triggers corresponding approach switch, and output head synchronizing signal, this signal is two switching signals, represents respectively on Sewing machines that needle position signal is stopped in pin position and two of lower pin positions.
What in the installation site of magnet on flywheel, A magnet and B magnet were corresponding is pin position and lower pin position signal detection magnet on Sewing machines, and magnet is followed motor rotation, detects the magnet edges position of upper and lower needle stop position signalling.
For this head locator, on the just Sewing machines that can provide, needle position signal is stopped in pin position and two of lower pin positions, and be the eedle position of the Sewing machines of indirect reflection, Sewing machines is only carried out relevant action by a pin position signal, if debugging or Rig up error, sometimes the eedle position of reflection is inaccurate, time cut off eedle, or the phenomenon of cutting-off eedle occurs while dialling line.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, can constantly obtain Sewing machines eedle position signalling, avoided cutting off the control device for sewing-machine that can accurately detect sewing machine needle position of eedle or cutting-off eedle risk.
Technical solution of the present utility model is:
A kind of control device for sewing-machine that can accurately detect sewing machine needle position, it is characterized in that: comprise and be arranged on the magnet steel on needle bar of sewing machine and be arranged on the linear hall sensor below sewing machine table, eedle is along with the motion of Sewing machines, be installed on the magnetic field that the magnet steel on needle bar of sewing machine discharges, triggering is installed on the linear hall sensor output voltage below sewing machine table; Hall element is connected with A/D analog-digital converter, gives A/D analog-digital converter by reaction signal Sewing needles position, that responded to by Hall element; A/D analog-digital converter is connected with central processing unit, gives central processing unit by data signal.
The utility model is rational in infrastructure; can constantly provide sewing machine needle positional information to central processing unit; the eedle of Sewing machines moves to and where is perfectly clear; overcome the defect that current Sewing machines can only detect two switching signals and represent pin position and lower pin position; improve the accuracy of the stop position of system; improve the reliability of automatic shearing, automatic poking line, while avoiding current Sewing machines, had the phenomenon of cutting off eedle or cutting-off eedle to occur.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the action effect figure of magnet steel around Hall sensor movement.
Fig. 3 be the magnet steel that is installed on needle bar of sewing machine with the Hall element effect being installed on below sewing machine table after Hall element output signal diagram.
Fig. 4 is Hall element output signal CPU sampling segmentation schematic diagram.
The specific embodiment
A kind of control device for sewing-machine that can accurately detect sewing machine needle position, comprise the magnet steel 1 being arranged on needle bar of sewing machine 5 and be arranged on sewing machine table 2 linear hall sensor 3 below, eedle is along with the motion of Sewing machines, be installed on the magnetic field that the magnet steel on needle bar of sewing machine discharges, triggering is installed on the linear hall sensor output voltage below sewing machine table; Hall element is connected with A/D analog-digital converter, gives A/D analog-digital converter by reaction signal Sewing needles position, that responded to by Hall element; A/D analog-digital converter is connected with central processing unit, gives central processing unit by data signal.
When stitching sewing machine, eedle 4, along with the motion of Sewing machines, is installed on the magnetic field that the magnet steel 1 on needle bar of sewing machine 5 discharges, and triggers and is installed on sewing machine table 2 linear hall sensor 3 output voltages below.When magnet steel from linear hall sensor more close to, the magnetic field of sensor sensing is stronger, output voltage is just higher, otherwise when magnet steel from linear hall sensor more away from, the magnetic field of sensor sensing is more weak, output voltage is just lower.
Therefore in the time of stitching sewing machine, magnet steel 1 constantly changes with the relative position of Hall element 3, Hall element 3 outputs are as the voltage signal of Fig. 3, and this signal reaction Sewing needles position, gives this signal the central processing unit (CPU) of control system and process.
When needle bar of sewing machine is when moving to lowermost end topmost, Hall element produces this section of voltage signal of AB; In the time that needle bar of sewing machine moves to topmost by lowermost end, Hall element produces this section of voltage signal of CD, as shown in Figure 3.The power of AB section voltage signal and CD section voltage signal has just represented the position of needle bar of sewing machine in its stroke.
Give A/D analog-digital converter by AB section voltage signal and CD section voltage signal, obtain the data signal of multiple reflection magnet steel and Hall element relative position information.The figure place of A/D analog-digital converter is higher, the precision detecting is higher, give the central processing unit (CPU) of control system by the data signal of reflection differing needles position, central processing unit just can obtain accurately reflecting the pin position signal of sewing machine needle run location in real time, central processing unit just can carry out Sewing machines SERVO CONTROL (can adopt the central processing unit Sewing machines servo-control system of the devices such as existing head locator) in conjunction with this pin position signal, realize Sewing machines and stop the accurate location of pin, guarantee that the function-stable such as Sewing machines automatic shearing, automatic poking line is reliable.
Claims (1)
1. one kind can accurately be detected the control device for sewing-machine of sewing machine needle position, it is characterized in that: comprise and be arranged on the magnet steel on needle bar of sewing machine and be arranged on the linear hall sensor below sewing machine table, eedle is along with the motion of Sewing machines, be installed on the magnetic field that the magnet steel on needle bar of sewing machine discharges, triggering is installed on the linear hall sensor output voltage below sewing machine table; Hall element is connected with A/D analog-digital converter, gives A/D analog-digital converter by reaction signal Sewing needles position, that responded to by Hall element; A/D analog-digital converter is connected with central processing unit, gives central processing unit by data signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003175.3U CN203668659U (en) | 2014-01-03 | 2014-01-03 | Sewing machine control device capable of accurately detecting needle position of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003175.3U CN203668659U (en) | 2014-01-03 | 2014-01-03 | Sewing machine control device capable of accurately detecting needle position of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203668659U true CN203668659U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420003175.3U Expired - Fee Related CN203668659U (en) | 2014-01-03 | 2014-01-03 | Sewing machine control device capable of accurately detecting needle position of sewing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203668659U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596709A (en) * | 2016-12-30 | 2017-04-26 | 纳恩博（天津）科技有限公司 | Method and device for detecting embedded magnet workpiece |
| CN107022857A (en) * | 2017-05-23 | 2017-08-08 | 浙江众邦机电科技有限公司 | Stop pin level control device and sewing machine on sewing machine |
| CN109594235A (en) * | 2017-09-30 | 2019-04-09 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN110528201A (en) * | 2018-05-25 | 2019-12-03 | 上海聚荣服装设计有限公司 | A kind of intelligent automation chain type embroidery machine |
-
2014
- 2014-01-03 CN CN201420003175.3U patent/CN203668659U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596709A (en) * | 2016-12-30 | 2017-04-26 | 纳恩博（天津）科技有限公司 | Method and device for detecting embedded magnet workpiece |
| CN107022857A (en) * | 2017-05-23 | 2017-08-08 | 浙江众邦机电科技有限公司 | Stop pin level control device and sewing machine on sewing machine |
| CN109594235A (en) * | 2017-09-30 | 2019-04-09 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN110528201A (en) * | 2018-05-25 | 2019-12-03 | 上海聚荣服装设计有限公司 | A kind of intelligent automation chain type embroidery machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160214 Address after: Hong Kong Industrial Park Tongzhou District Chuan Jiang town 226001 Jiangsu city of Nantong Province Patentee after: Jiangsu dream bedroom supplies Co., Ltd. Address before: 226007 No. 105, youth East Road, Jiangsu, Nantong Patentee before: nantong textile vocational technology college |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20180103 |
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| CF01 | Termination of patent right due to non-payment of annual fee |