CN221117885U - Sewing machine broken thread detection device - Google Patents
Sewing machine broken thread detection device Download PDFInfo
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- CN221117885U CN221117885U CN202322916479.0U CN202322916479U CN221117885U CN 221117885 U CN221117885 U CN 221117885U CN 202322916479 U CN202322916479 U CN 202322916479U CN 221117885 U CN221117885 U CN 221117885U
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- 238000001514 detection method Methods 0.000 title claims abstract description 79
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a broken thread detection device of a sewing machine, which comprises a sewing machine body, a broken thread detection mechanism and a transmission main shaft rotatably arranged in the sewing machine body, wherein a driving motor for driving the transmission main shaft to rotate is arranged in the sewing machine body, the broken thread detection mechanism comprises a main shaft detection encoder and a broken thread detection encoder, a rotating shaft of the main shaft detection encoder is fixed with a compression wheel, the compression wheel is pressed on the outer side of the transmission main shaft, the broken thread detection encoder is provided with a detection wheel, the detection wheel is provided with a V-shaped groove, and a suture is pressed in the groove. The main shaft that detects the encoder through setting up and the running fit of transmission main shaft can detect the rotation state of rotating the main shaft to judge whether sewing machine works, can detect the transmission state of suture through the broken string that sets up detects the encoder, thereby judge whether broken string, and the detection wheel is provided with the slot of V type and can ensure the wiring stability of suture, and with the cooperation reliability of broken string detection encoder, avoid the suture to break away from.
Description
Technical Field
The utility model particularly relates to a broken thread detection device of a sewing machine.
Background
The sewing machine can sew cotton, hemp, silk, wool, artificial fiber and other fabrics, leather, plastic, paper and other products, and the sewn stitch is neat, beautiful, flat, firm, fast in sewing speed and simple and convenient to use. And the broken line fault is unavoidable for various reasons in the sewing process. Once the broken thread occurs and the machine is not stopped in time, the sewing machine is in a sewing failure state, so that the product defective rate is increased, and materials are wasted.
The existing broken thread detection device of the sewing machine is mainly divided into two types: one is to detect the tension of the sewing thread through a complex mechanical structure, so as to detect whether the thread is broken or not, and the defects of complex structure, high cost and large space occupation exist; the other is to directly detect the suture line by adopting an optical sensor, but the optical sensor is easily affected by greasy dirt and fluff, and the detection mode often has false alarm phenomenon. Therefore, the utility model provides a novel sewing machine broken line detection device.
Disclosure of utility model
The technical problems to be solved by the utility model are as follows: the sewing machine broken line detection device is simple in structure, small in occupied space and reliable in detection.
In order to solve the technical problems, the utility model is solved by the following technical scheme: the utility model provides a sewing machine broken thread detection device, includes sewing machine body and rotates the transmission main shaft that sets up in the sewing machine body, still includes broken thread detection mechanism, sewing machine body in still be provided with driving motor, driving motor be used for driving the transmission main shaft rotate, broken thread detection mechanism including the main shaft that is used for detecting transmission main shaft rotation state detect the encoder and be used for detecting the broken thread detection encoder of suture conveying state, the pivot of main shaft detection encoder be fixed with the pinch roller, the pinch roller press establish in the transmission main shaft outside, broken thread detection encoder be provided with the detection wheel, the detection wheel be provided with V type slot, the suture press establish at the slot.
Further, the sewing machine body comprises a base and an installation seat, the installation seat comprises a support frame and an installation frame which are integrally arranged, the support frame is detachably matched with the base, and the transmission main shaft is rotatably arranged in the installation frame; the detachable base and the mounting seat are arranged, so that the driving motor and the transmission main shaft can be conveniently assembled, and the subsequent maintenance and repair are convenient.
Furthermore, the driving motor is fixedly arranged in the base, the transmission main shaft is a crankshaft, and the driving motor drives the transmission main shaft to rotate through the connecting rod.
Further, the sewing machine body is detachably provided with a first auxiliary bracket, and the main shaft detection encoder is fixed with the first auxiliary bracket; the advantage lies in can be convenient for the assembly of main shaft detection encoder through the first auxiliary stand that sets up, improves installation effectiveness.
Further, a fixed plate is arranged in the sewing machine body, the first auxiliary bracket is detachably matched with the fixed plate, the fixed plate is provided with a mounting hole, and the transmission main shaft penetrates through the mounting hole; the advantage lies in can be convenient for the assembly of first auxiliary stand and sewing machine body through the fixed plate that sets up, improves assembly stability.
Further, a rotating bearing is arranged in the mounting hole, and the transmission main shaft is in rotating fit with the fixed plate through the rotating bearing; the rotary bearing has the advantages that the rotary fit smoothness of the transmission main shaft and the mounting plate can be improved through the arranged rotary bearing, and meanwhile, the rotary stability of the transmission main shaft can be improved.
Further, a second auxiliary bracket is detachably arranged on the upper side of the sewing machine body, and the broken wire detection encoder is fixed with the second auxiliary bracket; the advantage lies in the installation that can be convenient for broken string detection encoder through the second auxiliary stand that sets up to and subsequent maintenance is changed.
Further, the compression wheel is a silica gel wheel; the device has the advantages that the synchronism of the running fit of the main shaft detection encoder and the transmission main shaft can be guaranteed through the arranged silica gel wheel, so that the detection reliability is improved.
Compared with the prior art, the utility model has the following beneficial effects: the state of the suture can be detected through the broken thread detection mechanism, so that the sewing efficiency is improved, and the problems of material waste and high defective rate caused by continuous operation of the sewing machine after broken threads are avoided. Specifically, through the rotation state of the rotation main shaft that the running fit of main shaft detection encoder and transmission main shaft that sets up can detect to judge whether sewing machine works, can detect the transmission state of suture through the broken string detection encoder that sets up simultaneously, thereby judge whether broken string, and the detection wheel is provided with the slot of V type and can ensure the wiring stability of suture, and with the cooperation reliability of broken string detection encoder, avoid the suture to break away from.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in 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 utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an assembled schematic view of the break line detection mechanism of the present utility model;
FIG. 3 is a schematic view of the installation position of the transmission main shaft of the present utility model;
FIG. 4 is a schematic view of the structure of the mounting base of the present utility model;
FIG. 5 is a schematic diagram of the spindle detecting encoder of the present utility model mated with a drive spindle.
Detailed Description
The present utility model is described in further detail below with reference to the accompanying drawings.
The following description is presented to enable one of ordinary skill in the art to practice the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. indicate orientations or positions based on the orientation or positional relationship shown in the drawings, which are merely for convenience in describing the present simplified description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus the above terms are not to be construed as limiting the present utility model.
The broken thread detection device for the sewing machine comprises a sewing machine body 1, a transmission main shaft 2 and a broken thread detection mechanism 3, wherein the transmission main shaft 2 is rotatably arranged in the sewing machine body 1, a driving motor is further arranged in the sewing machine body 1 and is used for driving the transmission main shaft 2 to rotate, the broken thread detection mechanism 3 comprises a main shaft detection encoder 4 and a broken thread detection encoder 5, the main shaft detection encoder 4 is used for detecting the rotation state of the transmission main shaft 2, the broken thread detection encoder 5 is used for detecting the suture transmission state, a pressing wheel 6 is fixed on a rotating shaft of the main shaft detection encoder 4, the pressing wheel 6 is pressed on the outer side of the transmission main shaft 2, the broken thread detection encoder 5 is provided with a detection wheel, the detection wheel is provided with a V-shaped groove, and a suture is pressed in the groove. The state of the suture can be detected through the broken thread detection mechanism 3, so that the sewing efficiency is improved, and the problems of material waste and high defective rate caused by continuous operation of the sewing machine after broken threads are avoided. Specifically, the rotation state of the rotating main shaft can be detected through the rotation fit of the main shaft detection encoder 4 and the transmission main shaft 2, so that whether the sewing machine works or not is judged, meanwhile, the transmission state of a suture can be detected through the broken line detection encoder 5, so that whether the suture is broken or not is judged, the line stability of the suture can be guaranteed through the groove of the V-shaped detection wheel, and the matching reliability of the detection wheel and the broken line detection encoder 5 is avoided, and the separation of the suture is avoided.
On the basis, the sewing machine body 1 comprises a base 1.1 and an installation seat 1.2, the installation seat 1.2 comprises a support frame 1.21 and an installation frame 1.22 which are integrally arranged, the support frame 1.21 is detachably matched with the base 1.1, the transmission main shaft 2 is rotatably arranged in the installation and the installation, and the detachable base 1.1 and the installation seat 1.2 can facilitate the assembly of the driving motor and the transmission main shaft 2 and facilitate the subsequent maintenance and repair. The driving motor is fixedly arranged in the base 1.1, the transmission main shaft 2 is a crankshaft, the output shaft of the driving motor is connected with a driving gear, the base 1.1 is rotationally provided with a sector gear 7, the sector gear 7 is hinged with the connecting rod 8, the driving gear drives the sector gear 7 to swing, and then the transmission main shaft 2 is driven to rotate through the connecting rod.
It should be noted that the sewing machine body 1 of the present utility model is detachably provided with a first auxiliary bracket 4.1, and the main shaft detecting encoder 4 is fixed with the first auxiliary bracket 4.1; still further, be provided with fixed plate 1.3 in sewing machine body 1, first auxiliary stand 4.1 can dismantle the cooperation with fixed plate 1.3, and fixed plate 1.3 sets up mounting hole 1.4, and transmission main shaft 2 runs through mounting hole 1.4, and wherein fixed plate 1.3 can be convenient for first auxiliary stand 4.1 and sewing machine body 1's assembly, improves assembly stability. Preferably, a rotating bearing is arranged in the mounting hole 1.4, the transmission main shaft 2 is in rotating fit with the fixing plate 1.3 through the rotating bearing, the rotating bearing can improve the rotating fit smoothness of the transmission main shaft 2 and the mounting plate, and meanwhile, the rotating stability of the transmission main shaft 2 can also be improved.
The upper side of the sewing machine body 1 is detachably provided with the second auxiliary bracket 5.1, the broken wire detection encoder 5 is fixed with the second auxiliary bracket 5.1, and the installation and the subsequent maintenance and replacement of the broken wire detection encoder 5 can be facilitated through the arranged second auxiliary bracket 5.1.
The hold-down wheel 6 is a silica gel wheel, and the synchronism of the running fit of the main shaft detection encoder 4 and the transmission main shaft 2 can be ensured through the arranged silica gel wheel, so that the detection reliability is improved, and the slipping is avoided.
It should be noted that, the sewing machine body is also provided with an integrated circuit board, the driving motor, the main shaft detecting encoder and the broken wire detecting encoder are all connected with the integrated circuit board, the driving motor is controlled to rotate through the integrated circuit board, and whether the main shaft detecting encoder and the broken wire detecting encoder are operated as the prior art is received, which is not repeated here. The specific working process is as follows: after power-on work, namely after the motor is driven to rotate, the main shaft detection encoder is used for detecting whether the transmission main shaft rotates or not and whether the rotation speed is within a set range, and if the rotation speed is not within a positive rotation speed range, the integrated circuit board can report to the wrong side for reminding. In the process of stitching, the stitching drives the detection wheel of the thread breakage detection encoder to rotate, so that signals are output to the integrated circuit board, the integrated circuit board analyzes and processes the received signals to judge whether the stitching is in a normal sewing speed range, when the rotating speed of the detection wheel is lower than the normal range and stops gradually, the thread breakage can be judged, and meanwhile, the integrated circuit board sends out alarm signals in a staggered mode.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.
Claims (8)
1. The utility model provides a sewing machine broken thread detection device, includes sewing machine body and rotates the transmission main shaft that sets up in the sewing machine body, sewing machine body in still be provided with driving motor, driving motor be used for driving transmission main shaft rotate, its characterized in that still includes broken thread detection mechanism, broken thread detection mechanism including the main shaft that is used for detecting transmission main shaft rotation state detect the encoder and be used for detecting the broken thread detection encoder of suture conveying state, the pivot of main shaft detect the encoder be fixed with the pinch roller, the pinch roller press establish in the transmission main shaft outside, broken thread detection encoder be provided with the detection wheel, the detection wheel be provided with V type slot, the suture press and establish in the slot.
2. The sewing machine thread breakage detection device according to claim 1, wherein the sewing machine body comprises a base and a mounting seat, the mounting seat comprises a supporting frame and a mounting frame which are integrally arranged, the supporting frame is detachably matched with the base, and the transmission main shaft is rotatably arranged in the mounting frame.
3. The sewing machine broken line detection device according to claim 2, wherein the driving motor is fixedly arranged in the base, the transmission main shaft is a crankshaft, and the driving motor drives the transmission main shaft to rotate through the connecting rod.
4. The sewing machine thread breakage detection device according to claim 1, wherein the sewing machine body is detachably provided with a first auxiliary bracket, and the main shaft detection encoder is fixed to the first auxiliary bracket.
5. The sewing machine thread breakage detection device according to claim 4, wherein a fixing plate is arranged in the sewing machine body, the first auxiliary bracket is detachably matched with the fixing plate, the fixing plate is provided with a mounting hole, and the transmission main shaft penetrates through the mounting hole.
6. The sewing machine thread breakage detecting device according to claim 5, wherein a rotating bearing is provided in the mounting hole, and the transmission main shaft is rotatably fitted with the fixing plate through the rotating bearing.
7. The sewing machine broken line detection device according to claim 1, wherein the upper side of the sewing machine body is detachably provided with a second auxiliary bracket, and the broken line detection encoder is fixed with the second auxiliary bracket.
8. The sewing machine thread breakage detection device according to claim 1, wherein the pinch roller is a silicone roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322916479.0U CN221117885U (en) | 2023-10-30 | 2023-10-30 | Sewing machine broken thread detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322916479.0U CN221117885U (en) | 2023-10-30 | 2023-10-30 | Sewing machine broken thread detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221117885U true CN221117885U (en) | 2024-06-11 |
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ID=91367784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322916479.0U Active CN221117885U (en) | 2023-10-30 | 2023-10-30 | Sewing machine broken thread detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221117885U (en) |
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2023
- 2023-10-30 CN CN202322916479.0U patent/CN221117885U/en active Active
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