Three Minutes to Take You Deeper into Understanding: Automatic Rubber Coating Technology for Automotive Wiring Harness

The automotive wiring harness manufacturing industry is a traditional labor-intensive industry. Many basic operations, such as encapsulation/wiring/plugging, require manual completion, and low efficiency is not easy to make mistakes. Therefore, many industry-related personnel are looking for ways to improve, to see if they can use machines to improve efficiency and reduce errors. For example, the heat shrinking method is changed from a single root to a crawler type, as well as a connector automatic threading machine and an automatic rubberizing machine. Today we are talking about the automatic rubberizing machine.

Automatic rubber laminating machines are generally divided into two categories, the first is hand-held, and the second is countertop. Here is a brief introduction to the handheld automatic rubberizing machine. This kind of machine is generally used for assembly line operation. The machine is suspended by a cantilever. The handle is held by the hand. The tape is fixed on the machine. As the hand moves, the tape is automatically wound on the wire harness.

The speed of the machine can be adjusted by itself, and the number of windings can also be adjusted. For example, the coverage of the general encapsulation requires 30%~50% coverage. This number can be adjusted.

However, because it is manually controlled, the distance control between the tapes cannot be automated, which is also the improvement goal of the current hand-held automatic rubberizing machine. Generally speaking, this kind of machine is suitable for relatively simple and straight wire harnesses. Turning too many complicated wire harnesses (such as the inner compartment of the instrument and the engine compartment) is not efficient, which is also a problem that needs to be overcome in the future.

The second type is a countertop automatic rubberizing machine. This kind of machine is generally used in the pre-processing area and placed on a specific table, so it is called a countertop type.

This kind of machine can control the number and speed of the tape winding as well as the hand-held type. It is very simple for an employee to sit, but the applicable wire harness can only be a straight and short wire harness. Wire harnesses with multiple branches are not suitable. If you do batch operations, the efficiency can be improved a lot compared to working on the tooling board. How to make it smaller and lighter is the future development.

In addition to these two, there is also an automatic rubberizing machine that is also eye-catching, an automatic rubberizing machine for parallel solder joints.

Turn on the power of the machine and replace it with a tape. It is easy to follow the instructions on the LCD screen.

The number of laps and speed of the rubber can be adjusted, and even the length of the tape can be adjusted. The length of the tape used for the thinner wire harness can be shortened to avoid waste, and the thicker wire harness can be lengthened to ensure complete coverage.

The following is the operation of the rubber:

The efficiency is much higher than the previous manual. 2.5s~3s can complete the encapsulation of one wire harness. In theory, it can produce 1200 pieces in one hour, but the disadvantage is that it is only effective for parallel welding (bilateral) solder joints. The terminal soldering (one side) is temporarily unachievable, and there is an industry problem that the blade will cut the tape as the usage time passes, which will become more and more difficult.

The above is the introduction of the automatic encapsulation technology of the current wire harness industry. This is an intelligent era. It is not an alarmist to replace the artificial machine. How to improve the efficiency is worthy of our industry practitioners to think about.