“Our thermal brick automatic feeding system project, after several weeks of production testing, has reached the enterprise's expected automatic production requirements and has been highly recognized by the company.†Institute of Advanced Manufacturing Technology, Hefei Research Institute, Chinese Academy of Sciences (below) Xia Yongbin, a young researcher at the Advanced Manufacturing Institute, said in an interview on May 15th.
Insulation brick automatic feeding system
This task took only half a year from signing to completion.
Code brick, not just physical work
Manually insulating bricks, before the robots help, is a heavy physical activity that makes workers frown. The dust is heavy, and the temperature at the summer work site often rises above 45 °C. The working environment is not bad, the labor intensity is still very huge - 8 hours per shift, two workers need to code 12 cars of bricks, the total weight can reach 2 tons.
"Based on the above reasons, the demand for automated palletizing by robots is very strong," said Xia Yongbin.
Due to the high temperature and high dust in the working environment, coupled with the large brick type and large brick shape, the work rhythm is high. Therefore, even if the robot is palletized, the difficulty is very large.
This is the strength of the scientific research unit. The company compared the technical capabilities and design schemes of several research institutes, and the advanced manufacturing institutes made them shine.
Previously, the young research team of Advanced Manufacturing Institute had many research and development achievements in related fields, such as intelligent dredging robots, large bar robot palletizing production lines, and automated cement bagging devices. These equipments have been put into actual production in related companies and have accumulated a good reputation.
After receiving the project, Xia Yongbin and colleagues Gao Chengfei, Zhao Haibin, Li Yanfeng and so on went to the site for many times, and designed a solution to the existing automatic conveyor line for the current production status of the enterprise.
Based on the existing conditions and the objectives to be achieved, the project team analyzes the difficulties of the project and subdivides them, and finally refines the tasks to everyone.
Xia Yongbin is the person in charge of the project. Considering the design of the project, the grasp of the project's progress time and the communication with the company, the electrical engineer Gao Chengfei is responsible for the design of the control plan. The mechanical part is designed by Li Yanfeng for the brick gripper and vacuum gas path. Zhao Haibin is responsible for the design of the plastic conveying line, push brick mechanism, robot bracket and protective net.
In the design stage of the project, everyone did not encounter difficulties. For example, the research team must consider the original conveyor line of the enterprise and consider how to most easily and effectively connect the plastic conveying line with the existing insulated brick conveying line, and also consider the working space on site.
“Through several on-site inspections, we skillfully used the existing small-scale running conveyor line of the company as the connection part with the shaping conveyor line, and realized our design without changing the original conveyor line, while saving. Space, reliability is also good." Xia Yongbin told reporters.
From "claw" to "sucker"
In this project, how to design the "hand claw" brick is a difficult problem. Because the brick shape of the brick is large, the upper and lower mouths of the brick are not the same, and the brick is also fragile.
“The vacuum adsorption technology previously made by other colleagues in our comprehensive research institute used suction cups to absorb bricks. Experiments have proved that this not only solves the problem of grabbing bricks, but also solves the problem of brick stacking,†Xia Yongbin said.
The artificial bricks produced by the enterprise, the bricks of the same batch will also cause the dry humidity of the artificial bricks to be inconsistent due to the uneven water supply of the mixing materials. The size error of the polished bricks after drying is large, and the bricks of the suction cups will be bricks. The deformation is large, the suction cup is not allowed to brick, and the brick cannot be sucked.
In order to make the embryo bricks more stable, the scientific research team considered in the first plan to “shape†the single bricks to achieve the equal spacing between bricks and bricks. In practice, it has been found that the shaping of a single brick does not meet the production tempo required by the enterprise. After repeatedly adjusting the shaping scheme, we found that changing the suction pad spacing can improve the stability of the brick.
When the scientific research team performs on-site debugging, the center distance of the suction cups is adjusted by the control, so that each suction cup can accurately suck the corresponding bricks.
Fish and fish double award is a good cooperation
This cooperation has made Xia Yongbin feel a lot. He said: "Researchers should thoroughly understand the needs of enterprises, propose reasonable R&D programs, and be the primary task of equipment development with stability and reliability. They should not blindly pursue technological frontiers, but must Solve the industrialization difficulties of market feedback."
Although such cooperation has completed the contract in half a year, Xia Yongbin and his colleagues also realized some important things in the technical and economic docking.
“First of all, the two sides must build a sincere and deep cooperation relationship.†In Xia Yongbin’s view, researchers use their own technological advantages to apply the results of the laboratory to solve the production needs of enterprises, and enterprises should provide them with the necessary research and development. condition.
In addition, the researchers output not only the single-item technology, but also assist in cultivating the technical personnel of the enterprise in the process of cooperation with the enterprise, improving the technical application ability of the enterprise, and ensuring that the research and development results are applied to production in a long-term and stable manner.
This is like "giving people a fish and also giving people a fish."
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