The range of safety technical measures for stamping operation is very wide, including improving stamping operation mode, reforming die structure and realizing mechanical automation. The use of compound die, continuous die and multi-station die can reduce working procedures, simplify working procedures, simplify operation and reduce the danger of operators. 1.
Use manual safety tools.
Using manual safety tools can avoid accidents caused by unreasonable mold design and sudden equipment failure. Common safety tools are: elastic pliers, special pliers, magnetic suction cups, vice, pliers, hooks and so on. 2.
Take protective measures against mold.
The protective measures of the mold include setting protective plates (covers) around the mold and improving the mold structure. Such as reducing the dangerous area of the mold and expanding the safe space; The mechanical discharging device is set up, and the original single-process manual feeding mold is improved without affecting the strength of the mold and the quality of the product, thus improving the safety. 3.
Install safety protection devices
Setting safety protection devices on stamping equipment and dies or using hand tools with low labor intensity and convenient and flexible use are also effective measures to realize the safety of stamping operation under current conditions. Such as hand tools, mold shields, mechanical access devices, double button switches, mechanical handles, push-pull devices, photoelectric automatic protection devices, etc. There are many forms of protection devices for stamping equipment, which are divided into mechanical type, button type, photoelectric type and induction type according to the structure.
The mechanical protection device is simple in structure and convenient to manufacture, but it has great interference to the operation, which is disliked by operators and seldom used.
The photoelectric device consists of a group of photoelectric switches and mechanical devices. When the operator's hand enters the mold area, the light beam is blocked and an electric signal is sent out, so that the slider stops moving and cannot go down, which ensures the safety of the operator. There are two kinds of photoelectric protection devices: infrared photoelectric protection device and incandescent lamp photoelectric protection device. Photoelectric protection devices are widely used because of their convenient use and basically no interference to operation.
The contact protection device uses the contact rod as the sensing element to control the movement of the slider, which has two types: normally open and normally closed. This protection device has the advantages of simple structure, low manufacturing cost and convenient operation, and workers can use several sets of devices in series at the same time when working. It is suitable for press with friction clutch and modified press with rigid clutch.
4. Realize mechanization and automation.
Realizing the mechanization and automation of stamping operation is the fundamental way to ensure the personal safety of workers and the safety of equipment. Only fully automatic production of stamping, feeding and taking materials is the best technical measure to realize safe production.
Practice has proved that replacing single-process dangerous die with compound die and multi-station continuous die, or setting mechanical feeding and discharging mechanism on the die to realize mechanization and automation, can achieve the purpose of improving the quality and production efficiency of sheet metal processing products, reducing labor intensity, facilitating operation and ensuring safety.