What is washing machine assembly line?
Washing machine assembly line is used for the assembly of drum washing machine parts to the final product, including inspection functions. Moreover, washing machine assembly line improves the manual line to automation/semi-automation, including tray rotation, automatic stop of the whole line, lifting function, and completes all assembly processes of the drum washing machine on this assembly line, as well as inspection, packaging and palletizing.
Compositions of washing machine assembly line
Drainage installation system
First, the robot uses a vision system to guide the intake and drainage pumps. Secondly, after the robot grabs the drainage pump, it installs the drainage pump and fastens screws under the guidance of the vision system. Then, in order to better realize automatic assembly, the drainage pump is placed in a regular manner in the storage area. Finally, the installation of the drainage pump water pipe is arranged to be carried out when the drainage pump is installed on the box body.
Automatic power supply detection system
The parameter tester includes grounding resistance tester, insulation resistance tester, withstand voltage tester, current and power tester, and noise tester. Each tester adds the test signal to the washing machine for parameter testing. The test signal and test result are digitally displayed on the front panel of the tester and sent to the microcomputer through the interface unit.
a) The measurement method of the ground resistance is 10A constant AC power supply, and the ground resistance is obtained by measuring the AC voltage. In order to improve the measurement accuracy, the measurement method uses the four-terminal principle.
b) The insulation resistance measurement method is to add 500V DC voltage to the phase line, naught wire and earth wire of the washing machine, and the voltage obtained by sampling is processed by double integration, and compared with the reference voltage to obtain the corresponding value. Leakage current measurement is to measure the leakage current between live wire or naught wire and earth wire of washing machine.
c) The withstand voltage test is to add high voltage to the phase wire, naught wire and earth wire. Under the specified high voltage, if the current value exceeds the specified value, an overcurrent signal will be generated on the sampling resistor. Through comparison and amplification, the relay will operate to automatically cut off the high voltage and alarm at the same time.
d) The current and power measurement is the voltage value added to the washing machine by the voltage transformer, and the current value flowing through the washing machine is measured by the current transformer, and the voltage value and current value are converted into power values by the power converter.
e) In order to reduce the impact of environmental noise, the noise measurement is carried out in the noise room, the noise probe is installed in the noise room, the noise room has a good sound insulation effect, the inlet and outlet of the washing machine are well sealed with felt, and the noise meter converts the noise into DC voltage.
Transplanting machine is a kind of equipment specially used for moving complete sets of equipment. Its structure generally includes car body, transplanting mechanism, electric control and hydraulic system and other parts. During the working process of the transplanting machine, due to the adoption of the overall handling method, it can ensure that the complete set of transplanted equipment is less damaged and the operation efficiency is high.
Transplanting mechanism is the core part of the transplanting machine, which is used to complete functions such as capturing, lifting, carrying and placing items. Transplanting mechanism of the transplanting machine mainly has two types: the transplanting manipulator with the suction cup and the clamping transplanting mechanism. Transplanting manipulator with suction cup can complete the capture function by absorbing the objects. And clamping transplanting mechanism usually uses the mechanical arm to clamp the plant to complete the handling process. Both kinds of transplanting mechanisms are realized by hydraulic and electric control systems.
a) Item capturing
Transplanting machine aligns and adjusts the items according to the preset position, and uses the transplanting mechanism to absorb or clamp the washing machine as a whole.
b) Item lifting
Transplanting machine activates the hydraulic and electric control systems, and the hydraulic cylinder in the transplanting mechanism starts to lift the items and adjusts the position to an appropriate height.
c) Item handling
Transplanting machine transports the items from the original position to the target position, and operates through the LCD screen and joystick in the cab to complete the item handling process.
d) Item placement
Transplanting machine places the items in the target position, and completes the placement of the items by adjusting the parameters such as the trajectory and movement range of the transplanting mechanism.
Upender comprises a base connected by turning hinges and a turning body. Upender is connected with the base through the turning hinge. There are rubber rollers in the middle of upender. The rubber wheel frame is connected with the base, so that the goods can be turned over at any angle conveniently and quickly, or attached to the conveyor line, which adopts multi-stage speed control just like travel switch, turns the goods to any angle and moves them to the next assembly line, so as to realize the three-dimensional flow of goods transportation. Therefore, the equipment has the characteristics of high conveying rate without manual work and lifting, and upender has simple structure, low cost, high work efficiency, safety and reliability.
a. Walking track
The conveying system with a load below 2t mostly uses aluminum alloy rails as the running track, which makes the laying of the conveying line more ideal and accurate. The high-strength aluminum alloy is used, which has good strength and wear resistance after surface oxidation treatment. The customized double T-shaped structure makes it reliable to connect with steel structure auxiliary beams and slide-connected conductive rails. For the conveying system above 2t, it is advisable to use H-shaped steel as the walking track.
b. Slip-on power transmission guide rail
The sliding connection is responsible for the transmission of the control signal of the three-phase four-wire power supply in the electric self-propelled trolley system, and the quality of the product directly affects the reliability of the system. The double carbon brush structure is adopted on the self-propelled trolley
, so that the signal transmission is more reliable.
c. Translation switch, turntable, elevator
In order to form a three-dimensional conveying network, system components such as translation switches, turntables, and elevators are installed at appropriate positions on the conveying line, so that the traveling trolley can be transferred from one traveling track to another, so as to meet the functions of diversion, merging and transfer of materials.
d. Running trolley
There are two types of running trolleys: ordinary type and intelligent type. According to the walking speed, it can be divided into fixed speed type and frequency conversion speed regulation type. The running car is composed of two or more car groups according to the different materials. Each running trolley has the function of automatically stopping when encountering an obstacle and automatically walking when the obstacle disappears. And the running trolley can be controlled by the built-in control flashlight door or the ground button station.
e. Slings for lifting loads (Spreader)
There are two ways for spreader
to connect materials, manual and automatic, which can be selected by users according to different process requirements. Optionally, it can also be coupled to the hoist hook of the running trolley.
f. Electrical control system
The electrical control system
is composed of programmable program controller, coding device, address recognition device, position sensor and other executive devices, and is equipped with different control programs to process various action requirements of the functional components of the conveying system in real time to complete the entire conveying system of craft action. Physically, it is generally divided into the main control cabinet, each station button station, trolley electric control cabinet and alarm display device, etc.; and for large and complex systems, there are functional components such as a central control room and a programmable controller network.
The principle of the hoist is to drive the gear, chain or belt to rotate through the motor, so that the hoist bucket moves back and forth on the track, so as to realize the lifting and conveying of materials. The whole hoist is composed of five parts: driving device, feeding device, intermediate device, unloading device and casing.
a) The driving device usually consists of a motor and a reducer. The motor converts the rotational kinetic energy into mechanical kinetic energy and transmits it to the reducer. The reducer makes the chain or transmission belt drive the lifting bucket to move on the track through decelerating movement.
b) The feeding device is mainly used to put the material into the lifting bucket. After the material falls from the silo into the feed hopper, it is carried by the lifting hopper and conveyed upwards.
c) The intermediate device mainly plays the role of connecting the loading and unloading devices, and adjusts the materials through other components to maintain a stable state.
d) The unloading device is to unload the material in the lifting bucket into the lower hopper, conveying pipeline, conveyor belt and other transportation tools, so as to realize the unloading function. The choice of unloading equipment should be selected according to the nature of the material, the conveying distance and other factors to ensure that the material is reliably and safely unloaded into the conveying tool below.
e) The last is the casing, which is mainly used to protect all parts inside the machine to prevent damage to the equipment from the external environment and materials. A good casing can prolong the service life of the hoist and improve the safety performance of the equipment.
Suspension conveying device includes a top suspension bracket, a slide rail is set on the top suspension bracket, a slidable top support base is set on the slide rail through a slider, a belt drive device is set on the top suspension bracket to drive the top support base to move, and a top support is set at the bottom of the top support base frame, a suction cup is arranged at the lower end of the top support frame, and the suction cup is connected to the suction cup suction and discharge control switch.
Palletizer is a device that moves goods from one location to another through a device such as a mechanical arm or a slide table, and stacks them according to set rules.
a) Perception recognition
Palletizer first senses and recognizes the goods to be palletized. Through laser sensors, vision systems and other devices, the shape, size, weight, etc. of the goods are detected and identified, and relevant information is obtained.
b) Stacking planning
According to the results of perceptual recognition, palletizer performs stacking planning. According to the characteristics of materials and stacking requirements, parameters such as the number of stacking layers, stacking form, and stacking spacing are set to determine the stacking sequence.
c) Motion control
According to the results of stacking planning, palletizer controls the movement of devices such as mechanical arms or sliding tables through the motion control system to accurately move the goods to the target position.
d) Palletizing action
According to the set rules, palletizer stacks the goods in the order of the stacking plan. Through the coordinated movement of devices such as mechanical arms or sliding tables, the goods are accurately placed on the target position.
e) Completion feedback
After the palletizer completes the palletizing action, it will give completion feedback. The stability and safety of the stacking are detected by the sensor to ensure the accuracy of the code operation.
Functions of washing machine assembly line
Washing machine automated assembly line can fully realize the assembly and transportation of the washing machine and perform performance testing, automatic control, and automatic packaging.
Features of washing machine assembly line
Washing machine assembly line is an effective combination of man and machine, and its flexibility is fully reflected in the conveying operation. And washing machine assembly line is an organic combination of conveying systems, fixtures, special devices and testing systems to meet the different requirements of the washing machine assembly process. Therefore, manual assembly lines or semi-automatic assembly lines can be selected according to the assembly process of different washing machines. On the whole, washing machine assembly lines are indispensable in mass production.
b. Stable production capacity
The biggest feature of the washing machine assembly line is its stable production capacity. The automatic processing system consists of one or more machine tools, so when a failure occurs, it will automatically degrade and operate, and the material delivery system will automatically bypass the failed machine tool and continue to work.
At the same time, the products assembled using the washing machine assembly line are of high quality. Workers only need to be familiar with a certain process, and only need to complete this process on the assembly line, and the accuracy of products is guaranteed.
In addition, after using the washing machine assembly line, when assembling the washing machine, it does not need to be loaded and unloaded multiple times from spare parts to finished products, and only one workload is needed from the on-line to off-line.
c. Convenient and easy to use
Washing machine automated assembly line usually adopts aluminum profile or stainless steel welding bracket, which is easy to install and has good load bearing. Moreover, during the conveying process, the beat can be adjusted according to the assembly speed of the process to ensure that the entire assembly line can be conveyed synchronously. In addition, washing machine assembly line generally applies chain plate conveying, and the chain drives the drum or belt to run. Therefore, washing machine assembly line can be used in harsh places such as high temperature and dust.
Advantages of washing machine assembly line
a. Increasing productivity
Washing machine automatic assembly line can realize high-speed, continuous and stable production, which greatly improves production efficiency. And compared with manual operation, automatic assembly line of washing machines can complete tasks faster and reduce the demand for human resources.
b. Improving product quality
Automatic assembly line of the washing machine adopts sophisticated sensors and control systems, which can monitor product quality in real time and make timely adjustments and corrections. Besides, compared with manual operation, washing machine automatic assembly line has higher precision and stability, so it can reduce errors and defects caused by human factors.
c. Reducing manufacturing cost
Although the investment cost of washing machine automated assembly line is high, it can reduce the production cost in the long run. Washing machine automatic assembly line can not only reduce the use of human resources and labor costs, but also improve production efficiency and reduce production time, thereby reducing production costs.
d. Improving production safety
Washing machine automatic assembly line can replace some dangerous and repetitive tasks, reducing the risk of physical injury to workers. In addition, using washing machine automated assembly line can also prevent some accidents through monitoring and control systems, improving the safety of the working environment.
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