CN211478361U - Spraying arm rotating speed testing system of dish washing machine - Google Patents
Spraying arm rotating speed testing system of dish washing machine Download PDFInfo
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- CN211478361U CN211478361U CN201922401828.9U CN201922401828U CN211478361U CN 211478361 U CN211478361 U CN 211478361U CN 201922401828 U CN201922401828 U CN 201922401828U CN 211478361 U CN211478361 U CN 211478361U
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Abstract
The utility model discloses a spraying arm rotating speed testing system of a dish washing machine, which comprises a rotating speed collecting and transmitting module, wherein the rotating speed collecting and transmitting module is used for collecting rotating speed data of a spraying arm of the dish washing machine; the data receiving module is used for receiving the rotating speed data transmitted to the spraying arm on the server by the rotating speed acquisition and transmission module; the data centralized programmable controller unifies the rotating speed data of the spray arm received by the data receiving module and performs classification processing through a communication address; the industrial personal computer sequences the rotating speed data of the spray arms, analyzes the data according to a preset judgment value to give a judgment result, stores the unique product serial number in an MES data single file, counts the qualified rate of the production line and finally generates a report; the utility model discloses can be in airtight high temperature environment and exist under the complicated operating mode of splash water, the rotational speed data of accurate measurement spray arm.
Description
Technical Field
The utility model relates to a dish washer sprays arm rotational speed test technical field, especially is a dish washer spray arm rotational speed test system.
Background
Along with the gradual improvement of the living standard and the continuous acceleration of the life rhythm of people, more and more families have purchased dish washing machines, along with the development of electrical appliances of daily household labor and the gradual improvement of the living area of urban families, the market of the dish washing machines in China has great development potential. According to investigation, the families of urban residents in China reach 1.6 hundred million households, and even if only 1% of families buy the dish washing machine every year, the annual market demand is over one million. According to the survey of the relevant aspects on ten major cities such as Beijing, Shanghai, Guangzhou, Shenzhen, Nanjing, Hangzhou and the like, the market capacity of the national dish washing machine is about 700 thousands of machines. Research and analysis of the information center of light industry in China shows that the dish-washing machine is probably the fastest growing product in domestic appliances in China in recent years.
The dish washer mostly adopts general spray type, and under the drive of washing pump, the spray arm mixes hot water and washing liquid and carries out high-speed rotation, erupts high temperature high pressure water column simultaneously, directly erodees the tableware surface, and part washing liquid jets to bounce back behind tableware and the inner bag wall, and the secondary washes the tableware, and sprays back flow washing liquid after to the washing on tableware surface, and final washing effect is relevant with the pressure of spouting the running water from the spray arm, and injection angle and rotational speed are related. At present, the spray arm rotational speed inspection of dish washer mainly relies on the selective examination mode, and through opening the door or opening and do a special water blocking door of transparent inspection behind the door, rely on the inspection personnel to estimate the eye after starting dish washer, the rotational speed that spray arm was realized to several spray arm operation processes, this kind of detection mode data is inaccurate, and work efficiency is lower, and the cost of labor is high. And in a humid, water-spraying and hot-water-containing closed space, the rotating speed of the internal components of the dishwasher or other internal variable parameters are difficult to measure under the condition of not damaging the sealing property and the structure of the product.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a spray arm rotational speed test system of dish washer can be at airtight high temperature environment and under the complicated operating mode of existence splash water, the rotational speed data of accurate measurement spray arm.
The utility model discloses a following technical scheme realizes:
a spray arm rotational speed test system for a dishwasher, comprising:
the rotating speed acquisition and transmission module is used for acquiring rotating speed data of a spraying arm of the dish washing machine, preprocessing and calculating the rotating speed data of the spraying arm and then sending the rotating speed data to the server;
the data receiving module is used for receiving the rotating speed data transmitted to the spraying arm on the server by the rotating speed acquisition and transmission module;
the data centralized programmable controller is connected with the data receiving module through an RS485 communication port, and the rotating speed data of the spray arm received by the data receiving module are unified to the data centralized programmable controller for classification processing through a communication address;
the industrial personal computer is connected with the data centralized programmable controller through an RS232 communication port; the data centralized programmable controller transmits the spraying arm rotating speed data after classification processing to the industrial personal computer through a communication address, the industrial personal computer sequences the spraying arm rotating speed data, the judging result is given out through analysis according to a preset judging value, the unique product serial number is subjected to MES data single file storage, the production line qualification rate is counted, and finally a report is generated.
Further, the rotational speed is gathered and is transmitted the module and is included:
the lithium battery pack is used for providing power supply;
the power management circuit is electrically connected with the lithium battery pack and used for carrying out voltage reduction and voltage stabilization treatment and electric quantity monitoring on the lithium battery pack;
the starting and stopping induction circuit is used for controlling the starting and stopping of the rotating speed acquisition and transmission module;
the laser speed measuring module is used for measuring the rotating speed data of the spray arm based on a closed high-temperature environment and under the complex working condition of water spraying;
the system comprises a LoRa sending and receiving module, a data receiving module and a laser speed measuring module, wherein the LoRa sending and receiving module is used for transmitting data from a terminal node to a server based on 915M working frequency of a LoRa narrowband wireless technology, and the LoRa sending and receiving module is used for sending the rotating speed data of a spray arm measured by the laser speed measuring module to the data receiving module; and
an ARM-STM32 processor, wherein the ARM-STM32 processor adopts a chip STM32F103C chip; the ARM-STM32 processor is respectively electrically connected with the power management circuit, the LoRa sending and receiving module, the start-stop sensing circuit and the laser speed measuring module.
Further, the data receiving module comprises:
the power supply management circuit is used for carrying out voltage reduction and voltage stabilization treatment on the power supply;
the LoRa sending and receiving module is used for receiving the rotating speed data of the spray arm measured by the laser speed measuring module;
the RS485 communication module is used for data transmission and transmitting the rotating speed data of the spray arm received by the LoRa sending and receiving module to the data centralized programmable controller; and the ARM-STM32 processor is electrically connected with the power management circuit, the LoRa sending and receiving module and the RS485 communication module respectively.
Furthermore, the data centralized programmable controller is connected with a touch screen through a LAN communication port; the data centralized programmable controller is connected with a bar code scanning gun through an RS232 communication interface; and the data centralized programmable controller is connected with the industrial personal computer through an RS232 communication interface.
Further, the industrial computer is electrically connected with a display screen.
Further, the laser speed measuring module comprises a fixing plate, an upper speed measuring arm, a lower speed measuring arm, a powerful magnet and a control box; the upper speed measuring arm is fixedly arranged at the upper end of the fixing plate; the lower speed measuring arm is fixedly arranged at the lower end of the fixing plate; the control box is arranged in the middle of the fixing plate; the powerful magnet is arranged at the lower part of the fixing plate and is positioned above the lower speed measuring arm.
Furthermore, U-shaped openings are formed in the ends, far away from the fixing plate, of the upper speed measuring arm and the lower speed measuring arm; the opening of the U-shaped opening deviates from the fixed plate, and speed measuring arm sensors are respectively installed at two ends of the U-shaped opening.
Furthermore, the start-stop sensing circuit comprises a start sensing switch, an optical fiber switch and a module circuit board; the starting inductive switch is arranged on the fixed plate and is positioned in the control box; the optical fiber switch is arranged on the upper end face of the speed measuring arm sensor; the module circuit board is arranged inside the control box; the module circuit board is respectively electrically connected with the starting inductive switch and the optical fiber switch.
Further, a method for testing the rotation speed of a spray arm of a dishwasher comprises the following steps:
step (1), during testing, an operator firstly scans a bar code on a dish-washing machine at a testing station by using a bar code scanning gun, then scans a bar code on the rotating speed acquisition and emission module, and the industrial personal computer matches the corresponding relation between the dish-washing machine and the rotating speed acquisition and emission module and also matches the standard rotating speed of a spraying arm of the dish-washing machine;
setting a rotating speed upper limit and a rotating speed lower limit through the touch screen, giving an audible and visual alarm prompt when the rotating speed exceeds a preset rotating speed, and flickering a corresponding test station graph on a display screen;
step (3), an operator adsorbs the rotating speed collecting and transmitting module on the inner side wall of the dish-washing machine through a strong magnet to start the dish-washing machine;
step (4), the rotating speed acquisition and transmission module acquires rotating speed data of a spraying arm of the dish washing machine, pre-processes and calculates the rotating speed data of the spraying arm and then sends the rotating speed data to the data receiving module; the data centralized programmable controller is connected with the data receiving module through an RS485 communication port, and the rotating speed data of the spray arm received by the data receiving module are unified to the data centralized programmable controller for classification processing through a communication address; the industrial personal computer is connected with the data centralized programmable controller through an RS232 communication port; the data centralized programmable controller transmits the classified spraying arm rotating speed data to the industrial personal computer through a communication address;
step (5), the industrial personal computer sequences the rotating speed data of the spray arms, analyzes the data according to a preset judgment value to give a judgment result, stores the unique product serial number in an MES data single file, uploads the unique product serial number to an MES system through a communication protocol, counts the qualified rate of a production line, and finally generates a report; and displaying the real-time rotating speed and the highest rotating speed of the spray arm on each test station through the display screen.
Further, in the step (3), the rotating speed collecting and transmitting die is adjusted to be adsorbed on the inner side wall of the dish washing machine, so that a middle spraying arm of the dish washing machine is positioned between the U-shaped openings of the upper speed measuring arms, and a lower spraying arm of the dish washing machine is positioned between the U-shaped openings of the lower speed measuring arms; and (4) acquiring the rotating speed data of the middle spray ARM and the lower spray ARM of the dish washing machine through the speed measuring ARM sensors respectively arranged on the upper speed measuring ARM and the lower speed measuring ARM, and preprocessing the acquired rotating speed data through the ARM-STM32 processor and then sending the preprocessed rotating speed data to the data receiving module.
The utility model has the advantages that:
the utility model is provided with a rotating speed acquisition and transmission module, a data receiving module, a data centralized programmable controller and an industrial personal computer; the rotating speed acquisition and transmission module is used for acquiring rotating speed data of a spraying arm of the dish washing machine, preprocessing and calculating the rotating speed data of the spraying arm and then sending the rotating speed data to the server, and the data receiving module is used for receiving the rotating speed data of the spraying arm which is transmitted to the server by the rotating speed acquisition and transmission module; the data centralized programmable controller is connected with the data receiving module through an RS485 communication port, and the rotating speed data of the spray arm received by the data receiving module are unified to the data centralized programmable controller for classification processing through a communication address; the industrial personal computer is connected with the data centralized programmable controller through an RS232 communication port; the data centralized programmable controller transmits the spraying arm rotating speed data after classification processing to the industrial personal computer through a communication address, the industrial personal computer sequences the spraying arm rotating speed data, the judging result is given out through analysis according to a preset judging value, the unique product serial number is subjected to MES data single file storage, the production line qualification rate is counted, and finally a report is generated. The utility model discloses can airtight high temperature environment, have under the complicated operating mode of splash water, and under the condition of not destroying product leakproofness and structure itself, the rotational speed data or other inside variation parameters of accurate measurement spray arm realize the automatic detection of the rotational speed of spray arm, have promoted the product quality, have reduced artifical the detection, automatic the detection realizes preventing slow-witted mistake proofing function, has improved work efficiency, has reduced the cost of labor, has extensive application range simultaneously.
Drawings
Fig. 1 is a schematic view of a measurement and control frame of a spray arm rotation speed testing system according to an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of the portion B of FIG. 1;
FIG. 4 is an enlarged view of section C of FIG. 1;
FIG. 5 is a schematic view illustrating an assembly of the rotational speed collecting and transmitting module and the dishwasher according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a rotational speed acquisition and transmission module according to an embodiment of the present invention;
fig. 7 is a circuit diagram of an ARM-STM32 processor according to an embodiment of the present invention;
fig. 8 is a circuit diagram of the LoRa transceiver module according to the embodiment of the present invention;
fig. 9 is a circuit diagram of a power management circuit according to an embodiment of the present invention;
fig. 10 is a circuit diagram of a communication address according to an embodiment of the present invention;
fig. 11 is a circuit diagram of an RS485 communication module according to an embodiment of the present invention;
FIG. 12 is a circuit diagram of a low power buzzer alarm according to an embodiment of the present invention;
fig. 13 is a circuit diagram of the embodiment of the present invention for collecting power.
In the drawings: 1-a lithium battery pack; 2-LoRa sending and receiving module; 3, fixing a plate; 4, an upper speed measuring arm; 5-lower speed measuring arm; 6-strong magnet; 7-a control box; 8-speed measuring arm sensor; 9-a dishwasher; 10-middle spray arm; 11-lower spray arm; 12-starting an inductive switch; 13-a fiber switch; 14-modular circuit board.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, and the present invention will be described in detail with reference to the accompanying drawings and specific embodiments below according to the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, back, top, end, bottom … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the term "connected" is to be construed broadly, e.g., "connected" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 4 and 10, a spray arm rotation speed test system of a dishwasher includes: the rotating speed acquisition and transmission module is used for acquiring rotating speed data of a spraying arm of the dish washing machine, preprocessing and calculating the rotating speed data of the spraying arm and then sending the rotating speed data to the server;
the data receiving module is used for receiving the rotating speed data transmitted to the spraying arm on the server by the rotating speed acquisition and transmission module;
the data centralized programmable controller is connected with the data receiving module through an RS485 communication port, and the rotating speed data of the spray arm received by the data receiving module are unified to the data centralized programmable controller for classification processing through a communication address;
the industrial personal computer is connected with the data centralized programmable controller through an RS232 communication port; the data centralized programmable controller transmits the spraying arm rotating speed data after classification processing to the industrial personal computer through a communication address, the industrial personal computer sequences the spraying arm rotating speed data, the judging result is given out through analysis according to a preset judging value, the unique product serial number is subjected to MES data single file storage, the production line qualification rate is counted, and finally a report is generated.
Referring to fig. 6 to 9, and fig. 12 and 13, in a specific embodiment, the rotational speed acquiring and transmitting module includes:
the lithium battery pack 1 is used for providing power supply; it should be noted that the lithium battery pack 1 adopts an independent module design, and the lithium battery pack 1 is detachable and can be directly taken to the outside for charging, similar to a mobile phone charger. The spraying arm rotating speed testing system reads in the electric quantity of the special power module, and when the electric quantity is lower than the use voltage, the spraying arm rotating speed testing system reminds an operator to charge the lithium battery pack 1.
The power management circuit is electrically connected with the lithium battery pack 1 and used for carrying out voltage reduction and stabilization treatment and electric quantity monitoring on the lithium battery pack 1; it should be noted that, when the power is lower than 10.6V, the power management circuit will perform a low power buzzer alarm to remind the operator to charge.
The starting and stopping induction circuit is used for controlling the starting and stopping of the rotating speed acquisition and transmission module;
the laser speed measuring module is used for measuring the rotating speed data of the spray arm based on a closed high-temperature environment and under the complex working condition of water spraying;
the system comprises a LoRa sending and receiving module 2, wherein the LoRa sending and receiving module 2 is used for transmitting data from a terminal node to a server based on 915M working frequency of a LoRa narrowband wireless technology, and the LoRa sending and receiving module 2 is used for sending the rotating speed data of the spray arm measured by the laser speed measuring module to the data receiving module; the ARM-STM32 processor adopts a chip STM32F103C chip; by adopting a 32-bit low-power STM32F103C chip of an ST company, the reliable and stable operation can be ensured, the long-time cruising ability can be ensured, and the test requirement of a production line is completely met; the ARM-STM32 processor is respectively electrically connected with the power management circuit, the LoRa sending and receiving module, the start-stop sensing circuit and the laser speed measuring module. It should be noted that the power supply circuit of the laser speed measurement module and the circuit board of the ARM-STM32 processor are sealed by sealing glue pouring and sealing rings added on the cover plate, so that the waterproof performance is good.
Referring to fig. 11, specifically, in this embodiment, the data receiving module includes:
the power supply management circuit is used for carrying out voltage reduction and voltage stabilization treatment on the power supply;
the LoRa sending and receiving module is used for receiving the rotating speed data of the spray arm measured by the laser speed measuring module;
the RS485 communication module is used for data transmission and transmitting the rotating speed data of the spray arm received by the LoRa sending and receiving module to the data centralized programmable controller; and the ARM-STM32 processor is electrically connected with the power management circuit, the LoRa sending and receiving module and the RS485 communication module respectively.
Specifically, in this embodiment, the data centralized programmable controller is connected to a touch screen through a LAN communication port; the data centralized programmable controller is connected with a bar code scanning gun through an RS232 communication interface; and the data centralized programmable controller is connected with the industrial personal computer through an RS232 communication interface. The touch screen is used for setting an upper limit and a lower limit of the rotating speed and giving an audible and visual alarm when the rotating speed exceeds a preset rotating speed; the bar code scanning gun is used for scanning bar codes on the dish washing machine and bar codes on the rotating speed collecting and transmitting module, the industrial personal computer is matched with the corresponding relation between the dish washing machine and the rotating speed collecting and transmitting module, and meanwhile, the standard rotating speed of a spraying arm of the dish washing machine is matched;
specifically, in this embodiment scheme, the industrial computer electricity is connected with the display screen. It should be noted that the information of the communication, on-line and electric quantity states of all the modules can be displayed through the display screen, the real-time rotating speed and the highest rotating speed of the spray arm on each testing station are displayed, and the rotating speed of the spray arm of the dish washing machine is monitored in real time.
Referring to fig. 5 and fig. 6, in this embodiment, specifically, the laser speed measuring module includes a fixing plate 3, an upper speed measuring arm 4, a lower speed measuring arm 5, a powerful magnet 6, and a control box 7; the upper speed measuring arm 4 is fixedly arranged at the upper end of the fixing plate 3; the lower speed measuring arm 5 is fixedly arranged at the lower end of the fixing plate 3; the control box 7 is arranged in the middle of the fixed plate 3; the powerful magnet 6 is arranged at the lower part of the fixing plate 3 and is positioned above the lower speed measuring arm 5.
Specifically, in the scheme of this embodiment, the ends of the upper speed measuring arm 4 and the lower speed measuring arm 5 away from the fixing plate 3 are both provided with a U-shaped opening; the opening of the U-shaped opening deviates from the fixed plate 3, and the two ends of the U-shaped opening are respectively provided with a speed measuring arm sensor 8. It should be noted that the laser speed measuring module is adsorbed on the inner side wall of the dish washer 9 by the powerful magnet 6, so that the middle spray arm 10 of the dish washer 9 is located between the U-shaped openings of the upper speed measuring arm 4, and the lower spray arm 11 of the dish washer 9 is located between the U-shaped openings of the lower speed measuring arm 5, and when the middle spray arm 10 and the lower spray arm 11 of the dish washer 9 rotate, the speed measuring arm sensor 8 detects and collects the rotating speeds of the middle spray arm 10 and the lower spray arm 11 of the dish washer 9.
Specifically, in this embodiment, the start-stop sensing circuit includes a start sensing switch 12, an optical fiber switch 13, and a module circuit board 14; the starting inductive switch 12 is arranged on the fixed plate 3 and is positioned inside the control box 7; the optical fiber switch 13 is mounted on the upper end surface of the speed measuring arm sensor 8; the module circuit board 14 is arranged inside the control box 7; the module circuit board 14 is electrically connected to the start induction switch 12 and the optical fiber switch 13, respectively. It should be noted that the starting inductive switch 12 is used for automatically inducing the rotation of the spray arm of the dishwasher 9, switching on the power supply of the rotating speed collecting and transmitting module, and performing normal operation; the optical fiber switch 13 has long service life, safety, reliability and strong anti-interference, is particularly suitable for application occasions such as humidity, high temperature, strong electromagnetic interference and the like, and the optical fiber switch 13 can be completely immersed in liquid and also can work to realize the normal work of the start-stop induction circuit.
Specifically, in the embodiment of the present invention, a method for testing rotation speed of a spray arm of a dishwasher includes the following steps:
step (1), during testing, an operator firstly scans a bar code on the dish-washing machine 9 by using a bar code scanning gun at a testing station, then scans a bar code on the rotating speed acquisition and emission module, and the industrial personal computer matches the corresponding relation between the dish-washing machine 9 and the rotating speed acquisition and emission module and matches the standard rotating speed of a spraying arm of the dish-washing machine 9;
setting a rotating speed upper limit and a rotating speed lower limit through the touch screen, giving an audible and visual alarm prompt when the rotating speed exceeds a preset rotating speed, and flickering a corresponding test station graph on a display screen;
step (3), an operator adsorbs the rotating speed collecting and transmitting module on the inner side wall of the dish washing machine 9 through a strong magnet 6, and the dish washing machine 9 is started;
step (4), the rotating speed acquisition and transmission module acquires rotating speed data of a spraying arm of the dish washing machine 9, pre-processes and calculates the rotating speed data of the spraying arm and then sends the rotating speed data to the data receiving module; the data centralized programmable controller is connected with the data receiving module through an RS485 communication port, and the rotating speed data of the spray arm received by the data receiving module are unified to the data centralized programmable controller for classification processing through a communication address; the industrial personal computer is connected with the data centralized programmable controller through an RS232 communication port; the data centralized programmable controller transmits the classified spraying arm rotating speed data to the industrial personal computer through a communication address;
step (5), the industrial personal computer sequences the rotating speed data of the spray arms, analyzes the data according to a preset judgment value to give a judgment result, stores the unique product serial number in an MES data single file, uploads the unique product serial number to an MES system through a communication protocol, counts the qualified rate of a production line, and finally generates a report; and displaying the real-time rotating speed and the highest rotating speed of the spray arm on each test station through the display screen.
Specifically, in the embodiment, in the step (3), the position of the rotating speed collecting and transmitting die adsorbed on the inner side wall of the dishwasher 9 is adjusted, so that the middle spraying arm 10 of the dishwasher 9 is located between the U-shaped openings of the upper speed measuring arm 4, and the lower spraying arm 11 of the dishwasher 9 is located between the U-shaped openings of the lower speed measuring arm 5; and (4) acquiring the rotating speed data of a middle spray ARM 10 and a lower spray ARM 11 of the dish washing machine 9 through the upper speed measuring ARM 4 and the speed measuring ARM sensor 8 respectively arranged on the lower speed measuring ARM 5, and preprocessing the acquired rotating speed data through an ARM-STM32 processor and then sending the preprocessed rotating speed data to the data receiving module.
The utility model is provided with a rotating speed acquisition and transmission module, a data receiving module, a data centralized programmable controller and an industrial personal computer; the rotating speed acquisition and transmission module is used for acquiring rotating speed data of a spraying arm of the dish washing machine, preprocessing and calculating the rotating speed data of the spraying arm and then sending the rotating speed data to the server, and the data receiving module is used for receiving the rotating speed data of the spraying arm which is transmitted to the server by the rotating speed acquisition and transmission module; the data centralized programmable controller is connected with the data receiving module through an RS485 communication port, and the rotating speed data of the spray arm received by the data receiving module are unified to the data centralized programmable controller for classification processing through a communication address; the industrial personal computer is connected with the data centralized programmable controller through an RS232 communication port; the data centralized programmable controller transmits the spraying arm rotating speed data after classification processing to the industrial personal computer through a communication address, the industrial personal computer sequences the spraying arm rotating speed data, the judging result is given out through analysis according to a preset judging value, the unique product serial number is subjected to MES data single file storage, the production line qualification rate is counted, and finally a report is generated. The utility model discloses can airtight high temperature environment, have under the complicated operating mode of splash water, and under the condition of not destroying product leakproofness and structure itself, the rotational speed data or other inside variation parameters of accurate measurement spray arm realize the automatic detection of the rotational speed of spray arm, have promoted the product quality, have reduced artifical the detection, automatic the detection realizes preventing slow-witted mistake proofing function, has improved work efficiency, has reduced the cost of labor, has extensive application range simultaneously.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (8)
1. The utility model provides a spray arm rotational speed test system of dish washer which characterized in that: the dishwasher control system comprises a rotating speed acquisition and transmission module, a server and a control module, wherein the rotating speed acquisition and transmission module is used for acquiring rotating speed data of a spraying arm of the dishwasher, preprocessing and calculating the rotating speed data of the spraying arm and then sending the rotating speed data to the server;
the data receiving module is used for receiving the rotating speed data transmitted to the spraying arm on the server by the rotating speed acquisition and transmission module;
the data centralized programmable controller is connected with the data receiving module through an RS485 communication port, and the rotating speed data of the spray arm received by the data receiving module are unified to the data centralized programmable controller for classification processing through a communication address;
the industrial personal computer is connected with the data centralized programmable controller through an RS232 communication port; the data centralized programmable controller transmits the spraying arm rotating speed data after classification processing to the industrial personal computer through a communication address, the industrial personal computer sequences the spraying arm rotating speed data, the judging result is given out through analysis according to a preset judging value, the unique product serial number is subjected to MES data single file storage, the production line qualification rate is counted, and finally a report is generated.
2. The spray arm rotation speed test system of a dishwasher of claim 1, wherein: the rotating speed acquisition and transmission module comprises
The lithium battery pack is used for providing power supply;
the power management circuit is electrically connected with the lithium battery pack and used for carrying out voltage reduction and voltage stabilization treatment and electric quantity monitoring on the lithium battery pack;
the starting and stopping induction circuit is used for controlling the starting and stopping of the rotating speed acquisition and transmission module;
the laser speed measuring module is used for measuring the rotating speed data of the spray arm based on a closed high-temperature environment and under the complex working condition of water spraying;
the system comprises a LoRa sending and receiving module, a data receiving module and a laser speed measuring module, wherein the LoRa sending and receiving module is used for transmitting data from a terminal node to a server based on 915M working frequency of a LoRa narrowband wireless technology, and the LoRa sending and receiving module is used for sending the rotating speed data of a spray arm measured by the laser speed measuring module to the data receiving module; the ARM-STM32 processor adopts a chip STM32F103C chip; the ARM-STM32 processor is respectively electrically connected with the power management circuit, the LoRa sending and receiving module, the start-stop sensing circuit and the laser speed measuring module.
3. The spray arm rotation speed test system of a dishwasher of claim 2, wherein: the data receiving module comprises
The power supply management circuit is used for carrying out voltage reduction and voltage stabilization treatment on the power supply;
the LoRa sending and receiving module is used for receiving the rotating speed data of the spray arm measured by the laser speed measuring module;
the RS485 communication module is used for data transmission and transmitting the rotating speed data of the spray arm received by the LoRa sending and receiving module to the data centralized programmable controller; and the ARM-STM32 processor is electrically connected with the power management circuit, the LoRa sending and receiving module and the RS485 communication module respectively.
4. The spray arm rotation speed test system of a dishwasher according to claim 2 or 3, wherein: the data centralized programmable controller is connected with a touch screen through a LAN communication port; the data centralized programmable controller is connected with a bar code scanning gun through an RS232 communication interface; and the data centralized programmable controller is connected with the industrial personal computer through an RS232 communication interface.
5. The spray arm rotation speed test system of a dishwasher of claim 4, wherein: the industrial personal computer is electrically connected with a display screen.
6. The spray arm rotation speed test system of a dishwasher of claim 2, wherein: the laser speed measuring module comprises a fixing plate, an upper speed measuring arm, a lower speed measuring arm, a powerful magnet and a control box; the upper speed measuring arm is fixedly arranged at the upper end of the fixing plate; the lower speed measuring arm is fixedly arranged at the lower end of the fixing plate; the control box is arranged in the middle of the fixing plate; the powerful magnet is arranged at the lower part of the fixing plate and is positioned above the lower speed measuring arm.
7. The spray arm rotation speed test system of a dishwasher of claim 6, wherein: one ends of the upper speed measuring arm and the lower speed measuring arm, which are far away from the fixed plate, are provided with U-shaped openings; the opening of the U-shaped opening deviates from the fixed plate, and speed measuring arm sensors are respectively installed at two ends of the U-shaped opening.
8. The spray arm rotation speed test system of a dishwasher of claim 7, wherein: the start-stop sensing circuit comprises a start sensing switch, an optical fiber switch and a module circuit board; the starting inductive switch is arranged on the fixed plate and is positioned in the control box; the optical fiber switch is arranged on the upper end face of the speed measuring arm sensor; the module circuit board is arranged inside the control box; the module circuit board is respectively electrically connected with the starting inductive switch and the optical fiber switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922401828.9U CN211478361U (en) | 2019-12-27 | 2019-12-27 | Spraying arm rotating speed testing system of dish washing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922401828.9U CN211478361U (en) | 2019-12-27 | 2019-12-27 | Spraying arm rotating speed testing system of dish washing machine |
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| CN211478361U true CN211478361U (en) | 2020-09-11 |
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| CN201922401828.9U Active CN211478361U (en) | 2019-12-27 | 2019-12-27 | Spraying arm rotating speed testing system of dish washing machine |
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|---|---|
| CN (1) | CN211478361U (en) |
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