CN111607870B - Intelligent creel and using method thereof - Google Patents
Intelligent creel and using method thereof Download PDFInfo
- Publication number
- CN111607870B CN111607870B CN202010402643.4A CN202010402643A CN111607870B CN 111607870 B CN111607870 B CN 111607870B CN 202010402643 A CN202010402643 A CN 202010402643A CN 111607870 B CN111607870 B CN 111607870B
- Authority
- CN
- China
- Prior art keywords
- yarn
- creel
- intelligent
- allowance
- polar plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02H—WARPING, BEAMING OR LEASING
- D02H1/00—Creels, i.e. apparatus for supplying a multiplicity of individual threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02H—WARPING, BEAMING OR LEASING
- D02H13/00—Details of machines of the preceding groups
Abstract
The invention discloses an intelligent creel and a using method thereof. The invention utilizes the mode of installing the capacitance sensor on the creel, and according to the principle that the capacitance value changes caused by the continuous change of the medium between the capacitance polar plates in the using process of the yarn, the capacitance value between the two polar plates is collected in real time and displayed on the display column and the display screen, the alarming function of yarn shortage is supported, meanwhile, the display screen is utilized to display various data such as yarn allowance, yarn consumption, yarn breakage frequency, alarming frequency and the like, no related intelligent creel device is available, the design structure is clear, and the reliability is high.
Description
Technical Field
The invention belongs to the field of intelligent manufacturing in the textile industry, and particularly relates to an intelligent creel and a using method thereof.
Background content
With the proposal of an intelligent manufacturing concept, various manufacturing industries begin to actively explore and practice under the guidance of policies, and the textile industry is one of the important post industries of the manufacturing industry in China, so that the enhancement of the intellectualization of textile equipment, the intellectualization of a design process, the optimization of a processing process, the informatization of management and the convenience of service is the necessary way. As an indispensable component part in textile equipment, the intellectualization of a creel is also one of the key factors for realizing the intelligent manufacturing of textiles.
Currently, the creels existing on the market and used in textile mills are basically common creels, and are only used as tools for placing and supporting yarn bobbins, and are realized as the simplest function of the yarn continuing of the weaving machine. When the yarn is used up, the empty bobbin condition needs to be observed manually in real time, and then the yarn bobbin is replaced manually, so that the intellectualization of a textile factory cannot be really realized. Therefore, the intelligent creel and the using method thereof are provided, whether the yarn runs out or not can be automatically identified, data such as positioning, yarn usage amount and residual amount can be acquired, labor force can be released, and the effect is greatly superior to that of manpower.
Disclosure of Invention
The invention overcomes the defects in the prior art and discloses an intelligent creel and a using method thereof. The invention utilizes the mode of installing the capacitance sensor on the creel, and according to the principle that the capacitance value changes caused by the continuous change of the medium between the capacitance polar plates in the using process of the yarn, the capacitance value between the two polar plates is collected in real time and displayed on the display column and the display screen, the alarming function of yarn shortage is supported, meanwhile, the display screen is utilized to display various data such as yarn allowance, yarn consumption, yarn breakage frequency, alarming frequency and the like, no related intelligent creel device is available, the design structure is clear, and the reliability is high.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an intelligent creel comprises a support, wherein a plurality of supporting rods 2 are fixedly connected to the periphery of the support, a plurality of bobbin creels 5 used for placing bobbins 7 are installed on the supporting rods 2, one capacitor sheet of a capacitor sensor 4 is installed on each bobbin creel 5, and the other capacitor sheet of the capacitor sensor 4 is fixed on each supporting rod 2; the capacitance sensor 4 is connected with a yarn allowance display device in a wired or wireless mode.
In a further improvement, the yarn allowance display device is a yarn allowance display 3.
In a further improvement, the capacitance sensor 4 is connected with the yarn allowance display 3 through an intelligent control device 10 in a wired or wireless mode.
In a further improvement, the intelligent control device 10 is connected with the touch display screen 9 in a wired or wireless mode.
In a further improvement, the intelligent control device 10 is a computer host or a single chip microcomputer.
In a further improvement, the support is a hollow support 1, and a power supply interface 11 is installed on the hollow support 1.
In a further improvement, the capacitive sensor 4 is connected with an alarm in a wired or wireless manner.
In a further improvement, a capacitor plate is arranged on the bobbin creel 5 and is a fixed polar plate 12; the capacitor plate arranged on the support rod 2 is a movable polar plate 13; a slide rail 14 for the movable polar plate 13 to slide is formed on the support rod 2; the movable polar plate 13 is connected with a lifting mechanism which is a cylinder, an oil cylinder or a screw rod mechanism; the length of the fixed pole plate 12 is greater than that of the movable pole plate 13.
The using method of the intelligent creel is characterized by comprising the following steps:
step one, starting an intelligent creel, carrying out self-checking on an intelligent control device 10, confirming whether the creel is in a normal state, sending an alarm signal if the creel is in a normal state, and starting subsequent work if the creel is in a normal state;
secondly, when the yarn drum is placed on the bobbin creel, keys are pressed on a display screen of the touch display screen 9 or remote setting is initialized, and the capacitance sensor detects the yarn allowance and displays the yarn use condition on the yarn allowance display device in real time;
and step three, when the yarn on a certain yarn drum is displayed on the yarn allowance display device to be lower than a set threshold value, the yarn drum is replaced by a worker.
In a further improvement, the yarn allowance display device is a yarn allowance display 3, and the yarn allowance display 3 is composed of a plurality of liquid crystal strips.
In a further improvement, the touch display screen 9 is also used for displaying yarn rest, historical data, real-time data and alarm data of the creel.
The advantages of the invention are as follows:
1. the device is innovative: the intelligent creel device comprises a creel body, a microprocessor, a capacitance sensor, a display column, a display screen and the like, the capacitance sensor is arranged on the creel in a manner of being mounted on the creel, capacitance values between two polar plates are collected in real time according to the principle that capacitance values change due to continuous change of media between capacitance polar plates in the use process of yarns, the capacitance values are displayed on the display column and the display screen, the function of alarming when the yarns are not enough is supported, meanwhile, the display screen is used for displaying various data such as yarn allowance, yarn quantity, yarn breakage frequency, alarming frequency and the like, no relevant intelligent creel device exists, the design structure is clear, and the reliability is high.
2. The method is innovative: the yarn allowance alarm line can be flexibly set according to actual use requirements, and the L position and the R position of the same layer of the creel are yarn drums with the same specification, so that the influence of the precision of the capacitive sensor on the drum changing time is basically eliminated, and the sufficient drum changing time is ensured. In addition, the display column and the electronic numbering design of the creel are arranged at the top of the creel, so that a foundation can be provided for visually detecting and judging the use condition of the yarn, and no related solution is provided
Drawings
Fig. 1 is a schematic view of the general structure of the present invention.
Fig. 2 is a structural view of a yarn remaining amount display.
Fig. 3 is a schematic structural diagram of the fixed plate and the movable plate in embodiment 2.
Detailed Description
Example 1
The structural schematic diagram of the intelligent creel designed by the invention is shown in figure 1, and the intelligent creel is the most common triangular air duct type creel in textile factories. For convenience of positioning, a creel on the left side of the creel in the upper drawing is defined as an L position, a creel on the right side is defined as an R position, and the specific structure of each part is described as follows:
the support rod 1 is used as a main component part of a creel structure and is used for supporting the whole creel.
2, the bracket is divided into an inner layer and an outer layer, the inner layer is used for threading yarns, and the thickness must be set according to the standard of a threading mechanism; the outer side layer is used for penetrating cables, and is made to be compact as far as possible on the principle that a creel power supply and a communication cable are guaranteed to be placed, so that space is saved, and the design is attractive. The outer side layer is embedded with a 3 yarn allowance display, a 6 creel number display and a 10 intelligent control device; the outer layer is surface mounted with 9 a display screen and 11 a power communication interface.
And 3, a yarn allowance display, which is embedded in the outer layer of the 2-layer hollow bracket near the top, and the structure diagram of which is shown in fig. 2. The yarn residual amount display columns respectively correspond to the positions of the yarn cylinders, the left side is provided with L1, L2, L3 and L4 display columns, the right side is provided with R1, R2, R3 and R4 display columns, and the yarn residual amounts of the corresponding yarn cylinders are respectively displayed. Each display column is composed of a plurality of liquid crystal strips, the full column represents that the yarn allowance is sufficient, the half column represents that the yarn is used for half, and the yarn allowance alarm setting function is supported, for example, the display column can be set in 2 columns or 1 column for displaying, an alarm signal is sent out to remind that the yarn is about to run out, and a yarn cylinder is required to be replaced. The yarn allowance can be distinguished by combining the colors of the display columns, the display columns are in green display when the yarn allowance is larger than an alarm line, the display columns are in yellow display when the yarn allowance is in the alarm line, and the display columns are in red display when the yarn is used up. In the practical use, the intelligent creel is generally arranged below the portal frame, the display column is arranged at the position close to the top of the support, the camera on the portal frame can conveniently capture images of the display column when the camera is used for visual detection, and the yarn condition of each yarn drum is judged by using an image processing technology.
And 4, a bobbin creel used for placing various yarn bobbins, wherein the position of the bobbin creel corresponds to the position of the yarn bobbin. In order to facilitate the positioning of an upper computer, the bobbin creels must be numbered, and the specific numbering is as follows: divide into 1, 2 … n layer according to from the bottom up, consequently left side L position creel serial number from the bottom up is respectively: l1, L2 … Ln; the number of the right R-position creel is respectively from bottom to top: r1, R2 … Rn, n are determined by the actual truss robot height, and are only shown as 4 layers in the figure, but are not limited to 4 layers. According to the rule of continuous yarn, the same layer bobbin creel needs to use the yarn with the same specification.
And 5, the capacitance sensor adopts a bipolar plate form, wherein one polar plate is adhered to the bobbin creel, and the other polar plate is arranged on the vertical rod of the creel. When no yarn bobbin is placed on the bobbin creel, the medium between the two polar plates is air; when a yarn drum is placed on the bobbin creel, the medium between the two polar plates is yarn, the yarn drum and air; when the yarn drum on the yarn drum rack is used up, the medium between the two polar plates is the yarn drum and air.
And in the capacitive sensor, under the condition of not considering the edge effect, the capacitance between two plates can be represented as follows:
C=εS/d;
wherein epsilon represents the dielectric constant of the medium between the two polar plates, S represents the area covered by the two polar plates, d represents the distance between the two polar plates, and the capacitance is influenced by the three parameters, and the capacitance can be changed by changing any parameter.
Therefore, the use condition of the yarns can be measured by utilizing the capacitance sensor, when the yarns are continuously used in a yarn bobbin, the capacitance value output by the capacitance sensor changes, the capacitance signal is converted into a voltage signal through the charge amplifier, the voltage signal is collected by the data acquisition equipment after RC filtering and amplification, and the data acquisition equipment can accurately judge whether the use condition of the yarns and the yarns are used up or not according to the collected data.
Capacitive sensors have the following advantages: the price is low, the sensitivity is high, and the accuracy is good; the structure is simple; the temperature stability is good; has an average effect; good dynamic responsiveness, etc.
6 be creel serial number display, adopt the electron serial number of digital tubular form, the digit can design according to actual conditions for the display of creel serial number, conveniently fixes a position and discerns the creel, and usable host computer is nimble simultaneously sets up the serial number. The creel serial number sets up in the below of being close to yarn surplus display, makes things convenient for the camera on the portal frame to take a candid photograph the image, discerns the creel serial number, fixes a position the creel position.
The yarn bobbin 7 is a cylindrical yarn bobbin and belongs to a common yarn bobbin type, the inner bobbin is hollow, and yarns are wound into a cylinder shape.
The yarn bobbin 8 is a conical yarn bobbin, belongs to the common yarn bobbin type, and has a hollow inner tube, and yarns are wound into a conical shape.
And 9, a touch display screen is used as a human-computer interaction interface of the intelligent creel, a conventional configuration screen is adopted, the touch function is supported, the yarn allowance, historical data, real-time data, alarm data and the like of the creel are mainly displayed, on one hand, the yarn allowance, the historical data, the real-time data, the alarm data and the like are displayed by a bracket graph, and on the other hand, the yarn allowance, the historical data, the real-time data, the alarm data and the like are directly displayed by data. The display screen supports the key adjustment function, and comprises the functions of setting parameters such as empty bobbin quality, bobbin type and alarm line, and supporting reset and zero clearing.
And 10, an intelligent control device is embedded and installed on the outer side layer of the central control bracket. The module adopts an integrated circuit board form, takes an ARM singlechip as a core processor, and is matched with input and output peripheral circuits in modular design, so that the function expansion is facilitated. The module is mainly responsible for functions of collecting, processing and transmitting data of various sensors, receiving and controlling signals of an upper computer and the like, and can be connected to the upper computer or a touch display screen by communication modes such as RS232, RS485, WiFi, Bluetooth, Ethernet, operator network and the like.
The power supply communication interface is a power supply communication interface, adopts an aviation plug form, has the advantages of water resistance, good sealing performance and good stability, and mainly provides a power supply for the intelligent support system and has a wired communication function.
The intelligent creel control part mainly comprises a microprocessor, a data memory, a sensor, a measurement conversion circuit, an AD converter, a remote scheduling platform, a local display screen, an alarm output device and the like.
After the sensor collects the non-electric quantity signal, the non-electric quantity signal is converted into a voltage or current signal through a measuring and converting circuit such as a bridge, an analog quantity signal such as the voltage or the current is converted into a digital quantity signal by an AD converter, the digital quantity signal is acquired by a microprocessor, and the acquired data are stored in a data storage device and a remote dispatching platform on one hand and are displayed on a liquid crystal screen on a creel on the other hand. The microprocessor adopts a single-chip microcomputer with ARM as a core.
Example 2
An improvement is made on the basis of the embodiment 1 as shown in figure 3:
in the figure, 14 is a slide rail, which is used for controlling and positioning the moving route of the movable polar plate 13, and the controller is used for controlling the forward and reverse rotation of the stepping motor or the servo motor to realize the movement of the movable polar plate along the slide rail.
13 is a movable polar plate of the capacitance sensor, and can automatically shift along with the use of the yarn of the bobbin. When the yarn is used up and a new yarn drum needs to be replaced, the movable polar plate is moved to the top of the sliding rail, so that the empty drum can be clamped and a new yarn drum can be placed conveniently; after the new yarn cylinder is placed stably, the movable polar plate moves downwards to a tiny distance position (namely the original position of the movable polar plate) above the new yarn cylinder, and the tiny distance position is controlled according to the actually measured capacitance value during debugging, so that on one hand, the accuracy of capacitance value measurement is guaranteed, and the precision of yarn allowance measurement is improved; on the other hand, the normal use of the yarn is not influenced.
12 for deciding the polar plate and installing on 5 bobbin creels, in order to guarantee to measure accurately, decide the polar plate and need longer than the dynamic polar plate, guarantee to decide the polar plate and can both have enough big effective area when the slide rail is the top, improve measurement accuracy.
The above example is only one embodiment of the present invention, and simple changes, substitutions, and the like are also within the scope of the present invention.
Claims (10)
1. An intelligent creel is characterized by comprising a support, wherein the periphery of the support is fixedly connected with a plurality of supporting rods (2), a plurality of bobbin creels (5) used for placing bobbins (7) are fixed on the supporting rods (2), one capacitor sheet of a capacitance sensor (4) is installed on each bobbin creel (5), and the other capacitor sheet of the capacitance sensor (4) is installed on each supporting rod (2); the capacitance piece arranged on the support rod (2) is a movable polar plate (13), and the capacitance sensor (4) is connected with a yarn allowance display device in a wired or wireless mode; a slide rail (14) for the movable polar plate (13) to slide is formed on the support rod (2); the movable polar plate (13) is connected with a lifting mechanism, and the length of the fixed polar plate (12) is greater than that of the movable polar plate (13).
2. An intelligent creel according to claim 1, wherein the yarn level display device is a yarn level display (3).
3. Intelligent creel according to claim 2, wherein the capacitive sensor (4) is connected to the yarn residual display (3) by a smart control device (10) in a wired or wireless manner.
4. Intelligent creel according to claim 3, wherein the intelligent control device (10) is connected with a touch display screen (9) by wire or wirelessly.
5. An intelligent creel according to claim 3, wherein the intelligent control device (10) is a computer host or a single chip microcomputer.
6. Intelligent creel according to claim 1, characterized in that the support is a hollow support (1), the hollow support (1) being provided with a power interface (11).
7. An intelligent creel according to claim 1, wherein one capacitive plate of the capacitive sensor (4) is fixed to the creel (5).
8. An intelligent creel according to claim 1, wherein the capacitor plates mounted on the creel (5) are fixed plates (12); the lifting mechanism is a cylinder, an oil cylinder or a screw rod mechanism.
9. A method of using the intelligent creel according to claim 1, comprising the steps of:
step one, starting an intelligent creel, carrying out self-checking on an intelligent control device (10), confirming whether the creel is in a normal state, sending an alarm signal if the creel is in a normal state, and starting follow-up work if the creel is in a normal state;
secondly, when the yarn drum is placed on the bobbin creel, keys are pressed on a display screen of the touch display screen (9) or remote setting is initialized, and the capacitance sensor detects the yarn allowance and displays the yarn use condition on the yarn allowance display device in real time;
step three, when the yarn allowance display device displays that the yarn on a certain yarn drum is lower than a set threshold value, a worker replaces the yarn drum; when the yarn is used up and a new yarn drum needs to be replaced, the movable polar plate is moved to the top of the sliding rail, so that the empty drum can be clamped and a new yarn drum can be placed conveniently; and after the new yarn barrel is placed stably, the movable polar plate moves downwards to a position with a small distance above the new yarn barrel, namely the original position of the movable polar plate, and the position with the small distance is controlled according to the actually measured capacitance value during debugging.
10. The use method of the intelligent creel according to claim 9, wherein the yarn allowance display device is a yarn allowance display (3), and the yarn allowance display (3) is composed of a plurality of liquid crystal strips; the touch display screen (9) is also used for displaying the yarn allowance of the creel, historical data, real-time data and alarm data.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010402643.4A CN111607870B (en) | 2020-05-13 | 2020-05-13 | Intelligent creel and using method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010402643.4A CN111607870B (en) | 2020-05-13 | 2020-05-13 | Intelligent creel and using method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111607870A CN111607870A (en) | 2020-09-01 |
CN111607870B true CN111607870B (en) | 2021-07-20 |
Family
ID=72201243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010402643.4A Expired - Fee Related CN111607870B (en) | 2020-05-13 | 2020-05-13 | Intelligent creel and using method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111607870B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113184633B (en) * | 2021-04-19 | 2022-09-30 | 珠海格力电工有限公司 | Device, method and equipment for acquiring disc changing time of bare metal wire and storage medium |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2362875Y (en) * | 1998-11-27 | 2000-02-09 | 林天来 | Improved creel for vertical air-duct of knitting machine |
CN2559662Y (en) * | 2002-08-02 | 2003-07-09 | 游誉龙 | Vertical pneumatic pipe yarn stand |
CN1840756A (en) * | 2005-03-29 | 2006-10-04 | 津田驹工业株式会社 | Beam stand - beaming machine |
CN103031659A (en) * | 2011-10-06 | 2013-04-10 | 陈崇锡 | Automatic stop device for first time of warp-lacking of circular weaving machine |
CN203096343U (en) * | 2013-03-18 | 2013-07-31 | 慈溪太阳洲纺织科技有限公司 | Frame structure of creel of knitting machine |
CN104161481A (en) * | 2014-09-01 | 2014-11-26 | 河海大学常州校区 | Capacitive intelligent management system for toilet paper boxes |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4010908A (en) * | 1974-07-29 | 1977-03-08 | Owens-Corning Fiberglas Corporation | Method and apparatus for handling linear elements |
US4540138A (en) * | 1984-04-09 | 1985-09-10 | Alandale Knitting Company | Textile yarn creel |
KR100690214B1 (en) * | 1998-10-09 | 2007-03-12 | 바마크 악티엔게젤샤프트 | A method of continuously processing a yarn, a method of texturing a synthetic multifilament yarn, an apparatus for continuously unwinding a yarn, and a texturing machine for texturing and winding a yarn |
CN102323120B (en) * | 2011-05-30 | 2013-03-06 | 东华大学 | Method and device for evaluating pilling resistance of yarn by on-line inlet and outlet measurement mode |
US10324458B2 (en) * | 2016-07-08 | 2019-06-18 | Columbia Insurance Company | Automated creel systems and methods for using same |
CN110983609B (en) * | 2020-01-07 | 2023-09-19 | 浙江理工大学 | Yarn joint detection device and application method thereof |
-
2020
- 2020-05-13 CN CN202010402643.4A patent/CN111607870B/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2362875Y (en) * | 1998-11-27 | 2000-02-09 | 林天来 | Improved creel for vertical air-duct of knitting machine |
CN2559662Y (en) * | 2002-08-02 | 2003-07-09 | 游誉龙 | Vertical pneumatic pipe yarn stand |
CN1840756A (en) * | 2005-03-29 | 2006-10-04 | 津田驹工业株式会社 | Beam stand - beaming machine |
JP2006273482A (en) * | 2005-03-29 | 2006-10-12 | Tsudakoma Corp | Creel warper device |
CN103031659A (en) * | 2011-10-06 | 2013-04-10 | 陈崇锡 | Automatic stop device for first time of warp-lacking of circular weaving machine |
CN203096343U (en) * | 2013-03-18 | 2013-07-31 | 慈溪太阳洲纺织科技有限公司 | Frame structure of creel of knitting machine |
CN104161481A (en) * | 2014-09-01 | 2014-11-26 | 河海大学常州校区 | Capacitive intelligent management system for toilet paper boxes |
Non-Patent Citations (1)
Title |
---|
智能纱架全自动络纱控制系统研制;徐宁;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;中国学术期刊(光盘版)电子杂志社;20140915(第09期);全文 * |
Also Published As
Publication number | Publication date |
---|---|
CN111607870A (en) | 2020-09-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109610056B (en) | Internet of things production monitoring management system for ring spinning frame | |
CN103741393B (en) | Lock stitch sewing machine bottom line allowance detector and detection method thereof | |
CN111607870B (en) | Intelligent creel and using method thereof | |
CN203683886U (en) | Bottom thread allowance detection device for lock stitch sewing machine | |
CN108871858A (en) | A Channel-catfish fish pond water water quality monitoring equipment | |
CN202642986U (en) | Winding length fixing control system in chemical fiber production | |
CN102944190A (en) | High-precision detector and method for measuring circular degree of mechanical parts of large sizes | |
CN107367313A (en) | Logging for measuring transformer oil conservater oil level | |
CN113323654A (en) | Engineering exploration data acquisition system and method | |
CN114473634B (en) | Precision detection method and device for numerical control tool rest | |
CN107491004A (en) | Intelligent weighing tester and its application method | |
CN205958010U (en) | Trinity sensor collection system of warm and humid oxygen | |
CN107130326A (en) | Ring-traveller quality online test method | |
CN209433017U (en) | Dustproof film apparatus for automatic change and α, β trick surface pollution monitor | |
CN207067834U (en) | Intelligent numerical control constant pressure source | |
CN206331131U (en) | A kind of hydrologic monitoring device | |
CN207832614U (en) | A kind of space antiseepage detection device | |
CN106501129B (en) | A kind of Viscosity Measurement Methods for capillary tube method viscosity measurement unit | |
CN215057321U (en) | Engineering investigation and exploration data acquisition system | |
CN212410630U (en) | Automatic wind speed measuring device | |
CN218822491U (en) | Equipment operation information detection monitoring system | |
CN203024739U (en) | High-precision detector for measuring roundness of large-size mechanical part | |
CN112556622A (en) | Intelligent raw silk fiber number instrument | |
CN220418586U (en) | Novel double-interface measuring liquid level sensor | |
CN201169720Y (en) | Control device for arranging yarn by arranging machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210720 |