CN108004683B - Material position detection device and material opposite side system and sewing machine comprising same - Google Patents
Material position detection device and material opposite side system and sewing machine comprising same Download PDFInfo
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- CN108004683B CN108004683B CN201711157027.1A CN201711157027A CN108004683B CN 108004683 B CN108004683 B CN 108004683B CN 201711157027 A CN201711157027 A CN 201711157027A CN 108004683 B CN108004683 B CN 108004683B
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- diffuse reflection
- reflection sensor
- material position
- edge
- sensor
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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
- D05B19/16—Control of workpiece movement, e.g. modulation of travel of feed dog
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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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
- D05D2207/00—Use of special elements
- D05D2207/02—Pneumatic or hydraulic devices
- D05D2207/04—Suction or blowing devices
-
- 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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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sewing Machines And Sewing (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention provides a material position detection device, a material side aligning system comprising the same and a sewing machine. The material position detection device includes: the device comprises a bottom plate, a controller, a first diffuse reflection sensor and a second diffuse reflection sensor which are separated by a preset distance. The first diffuse reflection sensor is used for detecting whether the edge of the material to be detected reaches an initial position; the second diffuse reflection sensor is used for detecting whether the edge reaches a target position; the controller is used for controlling the material position adjusting device after the edge of the material to be measured reaches the initial position, so that the material position adjusting device adjusts the edge to the target position. Compared with the existing products, the material position detection device, the material edge aligning system comprising the device and the sewing machine are simple in structure, low in cost and less in installation limitation, can accurately detect the position of a material, enables the material to be adjusted to a target position, and greatly improves production efficiency.
Description
Technical Field
The invention relates to the field of material detection equipment, in particular to a material position detection device, a material opposite side system comprising the same and a sewing machine.
Background
With the development of electronic technology, industrial sewing machines are gradually intelligentized, and many sewing processes require detection of whether cloth edges exist. At present, the following cloth detection devices are generally available:
1. the method is realized by an infrared correlation sensor, such as: chinese patent 'an automatic edge-aligning device for sewing machine cloth' (publication number: CN104389117A) designs an E-shaped multipoint correlation sensor to realize the edge detection of two layers of cloth. However, the infrared correlation sensor has high requirements on the installation accuracy of the upper and lower matching, has a complex structure, is difficult to realize uniform calibration for different fabrics, is easy to detect by mistake for large-mesh gauze, and is easily influenced by sunlight.
2. Realized by a reflective photoelectric sensor, such as: in the Chinese patent sewing machine (publication number: CN102560907A), an E-shaped reflection type photoelectric sensor is designed to realize selvage detection of two layers of cloth. However, since the incident angle and the reflection angle of the light beam coincide with those of the reflector, the reflective photoelectric sensor has high requirements on the installation angle and the structural design precision, and meanwhile, the reflective photoelectric sensor needs to be provided with the reflector, and the smoothness and the flatness of the reflector are ensured to be good.
3. Realized by a CCD image sensor, such as: the Chinese patent 'device for detecting the selvedge position' (publication number: CN202247466U) designs a CCD image sensor to realize the selvedge detection of cloth. However, such a CCD image sensor is complicated in structure and high in cost.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a material position detecting device, a material-facing system and a sewing machine including the same, so as to overcome the shortcomings of the material position detecting device in the prior art.
To achieve the above and other related objects, the present invention provides a material position detecting device, including: the bottom plate is arranged above/below the material to be detected and is parallel to a plane formed by the feeding direction and the adjusting direction of the material to be detected; the controller is electrically connected with the first diffuse reflection sensor and the second diffuse reflection sensor, and the first diffuse reflection sensor and the second diffuse reflection sensor are arranged on the bottom plate and are separated by a preset distance; the first diffuse reflection sensor is closer to the material to be detected than the second diffuse reflection sensor; the first diffuse reflection sensor is used for detecting whether the edge of the material to be detected reaches an initial position; the second diffuse reflection sensor is used for detecting whether the edge reaches a target position; the controller is used for controlling the material position adjusting device after the edge of the material to be measured reaches the initial position, so that the material position adjusting device adjusts the edge to the target position.
In an embodiment of the present invention, the material position detecting apparatus further includes: and the PCB is arranged on the bottom plate and is used for connecting the controller, the first diffuse reflection sensor and the second diffuse reflection sensor.
In an embodiment of the present invention, the material position detecting apparatus further includes: and the air guide pipes are respectively arranged on the side surface of the first diffuse reflection sensor and the side surface of the second diffuse reflection sensor and are used for being connected with an air suction device so as to suck away material residues and dust around the first diffuse reflection sensor and the second diffuse reflection sensor when the air suction device works.
In an embodiment of the present invention, the first diffuse reflection sensor and the second diffuse reflection sensor respectively have a software calibration function and a storage function, and can be calibrated by software and store calibrated parameters.
In an embodiment of the invention, the first diffuse reflection sensor and the second diffuse reflection sensor respectively have a visible light filtering function.
In an embodiment of the present invention, the first diffuse reflection sensor and the second diffuse reflection sensor are provided with a plurality of groups, and the first diffuse reflection sensor and the second diffuse reflection sensor in each group have different preset distances.
In an embodiment of the present invention, the controller stores: the diffuse reflection sensors of various materials detect output frequency values and information corresponding to the frequency values whether to start the material position adjusting device, so that when a material is detected, whether to adjust the position of the material is automatically judged.
To achieve the above and other related objects, the present invention provides a double-layer material position detecting device, including: the device comprises two groups of material position detection devices which are oppositely arranged and a partition plate which is positioned between the two groups and is used for blocking the diffuse reflection sensors which are oppositely arranged.
To achieve the above and other related objects, the present invention provides an automatic edge aligning system for materials, comprising: the device comprises a material position adjusting device, and the material position detecting device and/or the double-layer material position detecting device which are electrically connected with the material position adjusting device.
To achieve the above and other related objects, the present invention provides a sewing machine comprising: the automatic material edge aligning system is described above.
In an embodiment of the present invention, the sewing machine further includes: and the air suction device is connected with the air guide tube of any one material position detection device and/or the air guide tube of the double-layer material position detection device.
As described above, compared with the existing products, the material position detection device, the material opposite side system comprising the same and the sewing machine are simple in structure, low in cost, less in installation limitation, capable of accurately detecting the position of the material, and promoting the material to be adjusted to a target position, so that the production efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a material position detecting device according to an embodiment of the present invention.
Fig. 2A shows a waveform of an output of the diffuse reflection sensor with or without cloth.
Fig. 2B shows a waveform of the output of the diffuse reflection sensor with a wire wool or without a cloth.
Fig. 2C shows a waveform of another frequency output by the diffuse reflection sensor with a wire wool or mesh or without cloth.
Fig. 3 is a schematic structural diagram of a material position detecting device according to another embodiment of the invention.
Fig. 4 to 6 are schematic structural diagrams of a double-layer material position detecting device in an embodiment of the invention at different viewing angles.
Fig. 7 is a schematic structural diagram of the double-layer material position detecting device shown in fig. 4 to 6.
Description of the element reference numerals
100. 200 material position detection device
101. 201 base plate
102. 202 PCB board
103. 203 controller
104. 204 first diffuse reflection sensor
105. 205 second diffuse reflection sensor
1 Upper soleplate
2 middle shell
3 lower base plate
4 partition board
5 upper sensor PCB board
5-1, 5-2, 6-1, 6-2 diffuse reflection sensor
6 lower sensor PCB board
7 cavity
8 holes
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1, the present embodiment provides a material position detecting device 1 for detecting the position of a fabric, a sewing needle thread, a bobbin thread, or other objects, including: the detection device comprises a bottom plate 101 used for installing the whole detection device 1 above a material to be detected, and a controller 103 (such as an MCU), a first diffuse reflection sensor 104 and a second diffuse reflection sensor 105 which are arranged on the bottom plate 101, wherein the first diffuse reflection sensor 104 and the second diffuse reflection sensor 105 are respectively electrically connected with the controller 103. In a preferred embodiment, the bottom plate 101 is further provided with a PCB 102, and the controller 103, the first diffuse reflection sensor 104 and the second diffuse reflection sensor 105 are disposed on the PCB 102 and electrically connected to each other through the PCB 102. Specifically, the first diffuse reflection sensor 104 and the second diffuse reflection sensor 105 are spaced apart by a predetermined distance, which may be predetermined according to the position adjustment requirement of the material.
The first diffuse reflection sensor 104 and the second diffuse reflection sensor 105 respectively have a software calibration function and a storage function, and can achieve the purpose of sensitive detection through software calibration aiming at different requirements, such as remote detection, large mesh cloth, black and white cloth, and the like, and store calibrated parameters in an internal storage unit. In addition, the first diffuse reflection sensor 104 and the second diffuse reflection sensor 105 have a (25k +1ux) visible light filtering function, respectively, and can effectively prevent interference of sunlight.
Fig. 1 shows a coordinate system in which X denotes the material adjustment direction, Y denotes the material feed direction, and Z denotes the vertical direction of the entire inspection device 1. When the material is fed along the Y-axis, the edge of the material reaches the initial position and is detected by the first diffuse reflection sensor 104, and at this time, the controller 103 controls a material adjusting device (not shown) in communication connection with the first diffuse reflection sensor 104 according to the detection result of the first diffuse reflection sensor 104, so that the material adjusting device starts to move the material along the X-axis direction; when the edge of the material reaches the target position away from the initial position by the preset distance, the edge is detected by the second diffuse reflection sensor 105, and at this time, the controller 103 controls the material adjusting device according to the detection result of the second diffuse reflection sensor 105, so that the material adjusting device stops moving the material.
For example, in the material-free state, the first diffuse reflection sensor 104 and the second diffuse reflection sensor 105 both output a high level by default, and when there is material covering the first diffuse reflection sensor 104, the first diffuse reflection sensor 104 outputs a low level. The controller 103 may determine whether the material is present according to a change of the digital level signal of the first diffuse reflection sensor 104. Similarly, when a material blocks the second diffuse reflection sensor 105, the second diffuse reflection sensor 105 outputs a low level. The controller 103 may determine the presence or absence of the material according to a change in the digital level signal of the second diffuse reflection sensor 105.
Particularly, in a complex industrial use environment, aiming at the diversity of cloth, the following treatment measures are added in practical application: under normal conditions, the output waveform of the diffuse reflection sensor is shown in fig. 3A when a cloth or no cloth is present, and the output waveform of the diffuse reflection sensor is shown in fig. 3B and 3C when dust, lint or mesh cloth is present. It can be seen that the output waveform frequencies of different dust and lint or mesh are also different. According to the characteristic, before the material position detection device is used, the material to be detected can be placed on the diffuse reflection sensor for pre-detection, the corresponding relation between the output waveform and the material is stored in the controller, and then the controller can be set to adjust the position of certain material or not, so that the controller has the capacity of identifying the material through the waveform and automatically judging whether the position of the material needs to be adjusted or not.
For example, before detecting the mesh fabric (or the burred fabric), it may be placed in the diffuse reflection sensor position to perform pre-detection (normal trial sewing), and the controller is made to read the frequency characteristic value of the current mesh fabric (or burred fabric), and record whether the fabric corresponding to the frequency is the mesh fabric (or the burred fabric), and whether the material adjusting device is started when the mesh fabric (or the burred fabric) is detected. After entering the formal detection process, the controller obtains the waveform output by the diffuse reflection sensor, and when the frequency value in the waveform is analyzed to be matched with the previously recorded frequency value, the controller can identify the mesh (or burr) of the cloth at present and execute the step of starting the material adjusting device according to the setting. Wherein, the concrete realization mode of starting the material adjusting device is as follows: the controller is preset to filter the frequency when detecting the waveform of the frequency, if the frequency is changed to the low level shown in the figure, so that the mesh cloth (or the rough selvedge cloth) is regarded as a common cloth edge, and the step of starting the material adjusting device is directly executed.
Further, the detecting device 1 further includes a plurality of air ducts (not shown) respectively provided on the side of the first diffuse reflection sensor 104 and the side of the second diffuse reflection sensor 105. Each air duct is connected with an air suction device, so that when the air suction device works, the air ducts can suck away material residues, dust and the like around the first diffuse reflection sensor 104 and the second diffuse reflection sensor 105.
In another embodiment, the first diffuse reflection sensor 104 and the second diffuse reflection sensor 105 are provided with a plurality of sets, and the preset distances between the first diffuse reflection sensor 104 and the second diffuse reflection sensor 105 in each set are different, so as to meet the requirement of position adjustment of different materials. The controller 103 can analyze the distance information that needs to be adjusted for the current material by obtaining an external instruction, so as to select which group of diffuse reflection sensors to start working.
Fig. 3 shows a material position detecting device 200 according to another embodiment of the present invention, which is different from the embodiment shown in fig. 1 in that the material position detecting device 100 shown in fig. 1 is installed above a material to be detected, and the material position detecting device 200 shown in fig. 3 is installed below the material to be detected. Since the bottom plate 201, the PCB 202, the controller 203, the first diffuse reflection sensor 204, and the second diffuse reflection sensor 205 of the material position detecting device 200 are not different from those in the embodiment of fig. 1, they are not repeated herein.
The invention also provides a double-layer material position detection device which is formed by oppositely arranging two groups of material position detection devices 100 in the previous embodiment, and a partition board used for blocking diffuse reflection sensors in opposite directions is arranged between the two groups. The structure of the double-deck material position detecting apparatus will be described in detail below by way of an embodiment shown in fig. 4 to 7.
The double-deck material position detection device that shows is whole to be the E style of calligraphy, divide into upper and lower two-layer, includes: the sensor comprises an upper base plate 1, a middle shell 2, a lower base plate 3, a partition plate 4, an upper sensor PCB 5, a lower sensor PCB 6, a controller (not shown) and a group of diffuse reflection sensors 5-1 and 5-2 which are arranged on the upper sensor PCB 5, and a controller (not shown) and a group of diffuse reflection sensors 6-1 and 6-2 which are arranged on the lower sensor PCB 6. The upper sensor PCB 5 is embedded and fixed between the upper base plate 1 and the middle shell 2, and the lower sensor PCB 6 is embedded and fixed between the lower base plate 3 and the middle shell 2. The upper base plate 1 and the lower base plate 3 are symmetrically distributed and are connected with the middle shell 2 in an embedded mode, the partition plate 4 is inserted in the middle of the middle shell 2 and forms an E-shaped structure with the upper base plate 1 and the lower base plate 3, and the purpose of isolating the upper diffuse reflection sensor and the lower diffuse reflection sensor is achieved. It should be noted that the partition plate 4 only plays a role of isolating the upper and lower sensors, has no special light reflecting function, and can be made of common PC material.
Be equipped with cavity 7 in the middle casing 2, the electric lead wire of each diffuse reflection sensor of being convenient for, the afterbody is equipped with two holes 8, the installation of the whole double-deck material position detecting device of being convenient for. Air ducts (not shown) are arranged on the side surfaces of the diffuse reflection sensors, and 4 air nozzles of the air ducts are respectively aligned with the heads of the 4 diffuse reflection sensors 5-1, 5-2, 6-1 and 6-2 and used for removing material residues (such as line hair of cloth) and dust on the diffuse reflection sensors by using an external air suction device connected with the air ducts.
When the double-layer material position detection device of the embodiment detects the selvedge of 2 layers of cloth, the cloth is fed along the feeding direction, the selvedge firstly shields the diffuse reflection sensors 5-1 and 6-1, the controller drives the cloth adjusting mechanism according to the signal change of the diffuse reflection sensors 5-1 and 6-1 to move the cloth along the cloth adjusting direction, and when the cloth is adjusted to shield the diffuse reflection sensors 5-2 and 6-2, the controller stops the action of the cloth adjusting mechanism timely according to the signal change of the diffuse reflection sensors 5-2 and 6-2, namely, the opposite side function of the cloth is completed, so that the effect of closed-loop cloth adjustment is formed.
The diffuse reflection sensors 5-1 and 6-1 can be understood as the predicted positions of the cloth edges of the cloth, and the diffuse reflection sensors 5-2 and 6-2 are the positions to which the cloth edges need to be adjusted. The distance between the diffuse reflection sensors 5-1 and 5-2 or between the diffuse reflection sensors 6-1 and 6-2 is the adjustment distance of the selvedge, and the distance can be designed according to different requirements.
The invention also provides a system for automatically aligning edges of materials, which comprises: the material position adjusting device, and one or two combinations of the material position detecting device and the double-layer material position detecting device which are electrically connected with the material position adjusting device. Due to limited space, the detailed structure of the material position detecting device and the double-layer material position detecting device will not be repeated herein. The material position adjusting device adopts the existing structure, and the structure of the material position adjusting device is not limited by the invention.
In addition, the invention also provides a sewing machine which comprises the material automatic edge aligning system. Since the foregoing embodiments have described the structure of the material automatic edge-aligning system, they will not be described in detail. Optionally, the sewing machine further comprises a suction device, and the suction device is connected with the air duct of the material position detection device and the air duct of the double-layer material position detection device. The air suction device adopts the existing structure, and the structure of the air suction device is not limited by the invention.
In summary, the material position detection device, the material opposite side system comprising the same and the sewing machine provided by the invention have the advantages of simple structure, low cost, less installation limitation, capability of accurately detecting the position of the material and promoting the material to be adjusted to the target position, greatly improved production efficiency, capability of effectively overcoming various defects in the prior art and high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A material position detecting device, comprising:
the bottom plate is arranged above/below the material to be detected and is parallel to a plane formed by the feeding direction and the adjusting direction of the material to be detected;
the controller is electrically connected with the first diffuse reflection sensor and the second diffuse reflection sensor, and the first diffuse reflection sensor and the second diffuse reflection sensor are arranged on the bottom plate and are separated by a preset distance; the first diffuse reflection sensor is closer to the material to be detected than the second diffuse reflection sensor; the first diffuse reflection sensor and the second diffuse reflection sensor respectively have a visible light filtering function, a software calibration function and a storage function, and can be calibrated through software and store calibrated parameters;
the first diffuse reflection sensor is used for detecting whether the edge of the material to be detected reaches an initial position; the second diffuse reflection sensor is used for detecting whether the edge reaches a target position; the controller is used for controlling the material position adjusting device after the edge of the material to be detected reaches the initial position, so that the material position adjusting device adjusts the edge to the target position; wherein the controller stores: the diffuse reflection sensors of various materials detect output frequency values and information corresponding to the frequency values whether to start the material position adjusting device, so that when a material is detected, whether to adjust the position of the material is automatically judged.
2. The material position detecting device according to claim 1, characterized by further comprising: and the PCB is arranged on the bottom plate and is used for connecting the controller, the first diffuse reflection sensor and the second diffuse reflection sensor.
3. The material position detecting device according to claim 1, characterized by further comprising: and the air guide pipes are respectively arranged on the side surface of the first diffuse reflection sensor and the side surface of the second diffuse reflection sensor and are used for being connected with an air suction device so as to suck away material residues and dust around the first diffuse reflection sensor and the second diffuse reflection sensor when the air suction device works.
4. The material position detecting device according to claim 1, wherein the first diffuse reflection sensor and the second diffuse reflection sensor are provided in a plurality of sets, and a preset distance between the first diffuse reflection sensor and the second diffuse reflection sensor in each set is different.
5. The utility model provides a double-deck material position detection device which characterized in that includes: two sets of oppositely disposed material position detecting devices according to any one of claims 1 to 4, and a partition plate between the two sets for blocking the oppositely disposed diffuse reflection sensors.
6. An automatic material edge aligning system, comprising: a material position adjusting device, and a material position detecting device according to any one of claims 1 to 4 and/or a double-layer material position detecting device according to claim 5 electrically connected thereto.
7. A sewing machine, comprising: the material automatic edge aligning system of claim 6.
8. The sewing machine of claim 7, further comprising: an aspirator connected to the airway of a material position detecting device according to any one of claims 1 to 4 and/or the airway of a double-deck material position detecting device according to claim 5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711157027.1A CN108004683B (en) | 2017-11-20 | 2017-11-20 | Material position detection device and material opposite side system and sewing machine comprising same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711157027.1A CN108004683B (en) | 2017-11-20 | 2017-11-20 | Material position detection device and material opposite side system and sewing machine comprising same |
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| CN108004683A CN108004683A (en) | 2018-05-08 |
| CN108004683B true CN108004683B (en) | 2020-08-07 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578209B (en) * | 2018-06-11 | 2021-06-04 | 杰克缝纫机股份有限公司 | Selvage control method in sewing process |
| CN111381290A (en) * | 2018-12-28 | 2020-07-07 | 宁波江丰电子材料股份有限公司 | Workbench and using method thereof |
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| US4784071A (en) * | 1986-12-25 | 1988-11-15 | Yaacov Sadeh | Automatic sewing machine with scanning camera system |
| CN101724983A (en) * | 2008-10-16 | 2010-06-09 | Juki株式会社 | Serging machine |
| CN202247466U (en) * | 2011-07-07 | 2012-05-30 | 上海和田光电技术有限公司 | Device for detecting selvedge position |
| CN102560907A (en) * | 2010-10-07 | 2012-07-11 | Juki株式会社 | Sewing machine |
| CN104389117A (en) * | 2014-11-06 | 2015-03-04 | 上海富山精密机械科技有限公司 | Cloth automatic edge aligning device of sewing machine |
| CN106087281A (en) * | 2016-08-10 | 2016-11-09 | 上海富山精密机械科技有限公司 | A kind of sewing machine cloth automatic edge-adjusting device |
| CN106350950A (en) * | 2016-11-15 | 2017-01-25 | 东莞景诚智能科技有限公司 | Reaction mechanism for sewing machine |
| CN106609428A (en) * | 2015-10-27 | 2017-05-03 | 浙江众邦机电科技有限公司 | A cloth detection system and a sewing machine |
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| US4784071A (en) * | 1986-12-25 | 1988-11-15 | Yaacov Sadeh | Automatic sewing machine with scanning camera system |
| CN101724983A (en) * | 2008-10-16 | 2010-06-09 | Juki株式会社 | Serging machine |
| CN102560907A (en) * | 2010-10-07 | 2012-07-11 | Juki株式会社 | Sewing machine |
| CN202247466U (en) * | 2011-07-07 | 2012-05-30 | 上海和田光电技术有限公司 | Device for detecting selvedge position |
| CN104389117A (en) * | 2014-11-06 | 2015-03-04 | 上海富山精密机械科技有限公司 | Cloth automatic edge aligning device of sewing machine |
| CN106609428A (en) * | 2015-10-27 | 2017-05-03 | 浙江众邦机电科技有限公司 | A cloth detection system and a sewing machine |
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| CN106350950A (en) * | 2016-11-15 | 2017-01-25 | 东莞景诚智能科技有限公司 | Reaction mechanism for sewing machine |
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| CN108004683A (en) | 2018-05-08 |
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