CN214060881U - Alarm device for simultaneously detecting upper thread and bobbin thread exhaustion or thread breakage of sewing machine - Google Patents
Alarm device for simultaneously detecting upper thread and bobbin thread exhaustion or thread breakage of sewing machine Download PDFInfo
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- CN214060881U CN214060881U CN202022258431.1U CN202022258431U CN214060881U CN 214060881 U CN214060881 U CN 214060881U CN 202022258431 U CN202022258431 U CN 202022258431U CN 214060881 U CN214060881 U CN 214060881U
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- thread
- sewing machine
- copper sheet
- machine head
- spring
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Abstract
The utility model relates to a sewing machine detects surface thread and shuttle line simultaneously and uses up or alarm device of broken string, including sewing machine head, its characterized in that: the copper sheet is arranged below a thread take-up spring of a sewing machine head, the copper sheet is arranged on the sewing machine head through an insulator, the top of the copper sheet is a plane, the plane is located in a rebounding projection area of the thread take-up spring, the copper sheet is connected with a signal wire connected to a sewing machine head controller, and the thread take-up spring is connected with an electrical grounding wire. A vertical elongated slot is arranged on the copper sheet, and the fixing screw is positioned in the elongated slot of the copper sheet and connected with the insulator. The utility model has the advantages that can run out or the broken string sends the warning to the shuttle line, so just in time take the measure of changing the shuttle line, improve sewing worker's work efficiency to can improve the quality of sewing goods.
Description
Technical Field
The utility model relates to an alarm device of broken string, especially an alarm device that sewing machine detected facial line and shuttle line simultaneously and used up or broken string.
Background
At present, in the aspect of thread breakage detection of a sewing machine, the upper thread breakage can only be detected independently, and for thread breakage detection of a bobbin thread, an alarm of bobbin exhaustion is mostly simulated by using a computer counting mode, the thread breakage detection of the bobbin thread can not be done, so that the phenomena that the bobbin cannot be detected and cannot be stopped after thread breakage are caused, and the quality of a sewn product is influenced. Therefore, it is desired to develop a device capable of detecting the thread breakage of the bobbin thread to improve the sewing efficiency and the quality of the sewn product.
Disclosure of Invention
The utility model aims at solving the above-mentioned problem that can't detect sewing machine's shuttle line broken string exists among the prior art, provide a sewing machine detects surface line and the alarm device that the shuttle line runs out or the broken string simultaneously. The utility model relates to a sewing machine detects surface thread and shuttle line simultaneously and uses up or alarm device of broken string, including sewing machine head, its characterized in that: the copper sheet is arranged below a thread take-up spring of a sewing machine head, the copper sheet is arranged on the sewing machine head through an insulator, the top of the copper sheet is a plane, the plane is located in a rebounding projection area of the thread take-up spring, the copper sheet is connected with a signal wire connected to a sewing machine head controller, and the thread take-up spring is connected with an electrical grounding wire. A vertical elongated slot is arranged on the copper sheet, and the fixing screw is positioned in the elongated slot of the copper sheet and connected with the insulator. The utility model has the advantages that can run out or the broken string sends the warning to the shuttle line, so just in time take the measure of changing the shuttle line, improve sewing worker's work efficiency to can improve the quality of sewing goods.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the local enlarged structure of the present invention.
Detailed Description
In the figure, the alarm device for simultaneously detecting the upper thread and the bobbin thread running out or thread breakage of the sewing machine comprises a sewing machine head 1 and is characterized in that: a copper sheet 3 is arranged below a thread-taking-up spring 2 of a sewing machine head, the copper sheet is arranged on the sewing machine head through an insulator 4, the top of the copper sheet is a plane 5, the plane is positioned in a projection area of the elasticity of the thread-taking-up spring, the copper sheet is connected with a signal wire (not shown in the figure) connected with a controller of the sewing machine head, and the thread-taking-up spring is connected with an electrical grounding wire (not shown in the figure). A vertical long groove 6 is arranged on the copper sheet, and a fixing screw 7 is positioned in the long groove of the copper sheet and connected with an insulator.
When the sewing machine head is in actual use, because the upper thread 8 and the shuttle line (in the sewing machine head, not drawn in the figure) can be interweaved, thereby can produce line tension, the upper thread has certain power that draws like this, will produce decurrent pulling force to the take-up spring that needs to walk around, thereby make the plane above the copper sheet of take-up spring touching installation below it, when the surface or shuttle line have any party disconnection, will cause line tension to reduce, make the take-up spring produce the resilience force, thereby can't touch the plane above the copper sheet of its below, the low level of the signal end of original access controller becomes high potential (or high resistance level), thereby the signal input part's of controller signal input has been changed, the controller detects the signal and changes the back, can send out the broken string and report to the police. The sewing machine which is automatically controlled is stopped, and the sewing machine which is controlled by a person can stop sewing to process the broken thread. In addition, in the sewing of different materials, the thread tension generated by interweaving the upper thread and the shuttle-stitch thread is different, and the elastic amplitude of the thread take-up spring is different, so that the copper sheet is designed to be adjustable up and down (the up and down position of the copper sheet can be adjusted by loosening the fixing screw), and the requirements of different sewing materials are met.
Claims (2)
1. The utility model provides a sewing machine detects surface thread and shuttle line simultaneously and uses up or the alarm device of broken string, includes sewing machine head, its characterized in that: the copper sheet is arranged below a thread take-up spring of a sewing machine head, the copper sheet is arranged on the sewing machine head through an insulator, the top of the copper sheet is a plane, the plane is located in a rebounding projection area of the thread take-up spring, the copper sheet is connected with a signal wire connected to a sewing machine head controller, and the thread take-up spring is connected with an electrical grounding wire.
2. The apparatus as claimed in claim 1, wherein the alarm device for simultaneously detecting the end of thread or thread breakage of the upper thread and the bobbin thread comprises: a vertical elongated slot is arranged on the copper sheet, and the fixing screw is positioned in the elongated slot of the copper sheet and connected with the insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022258431.1U CN214060881U (en) | 2020-10-12 | 2020-10-12 | Alarm device for simultaneously detecting upper thread and bobbin thread exhaustion or thread breakage of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022258431.1U CN214060881U (en) | 2020-10-12 | 2020-10-12 | Alarm device for simultaneously detecting upper thread and bobbin thread exhaustion or thread breakage of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214060881U true CN214060881U (en) | 2021-08-27 |
Family
ID=77395698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022258431.1U Active CN214060881U (en) | 2020-10-12 | 2020-10-12 | Alarm device for simultaneously detecting upper thread and bobbin thread exhaustion or thread breakage of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214060881U (en) |
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2020
- 2020-10-12 CN CN202022258431.1U patent/CN214060881U/en active Active
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