 | A parallel 40 mm wide laser band is divided into three sections: front, middle and back. When the plate is folded normally, 40 mm laser band is detected at the same time |
Multiple processing modes are available Folding machine mode Folding box mode | |
Protection measures for laser detection in front, middle and back three stages It can automatically shield the front and rear lasers according to the processing mode |
Operation process
Hold the workpiece to the cutting edge, step on the foot switch, press the upper mold and the lower mold to realize the workpiece bending 90 degrees or the folding box mode
Normal mode If no obstacle is detected, the mold closes at high speed until the laser beam reaches the shielding point. After that, the sensing function is shielded, and the die continues to move and bend the material at the crawling speed until it is completed. In normal mode, the entire laser beam (front, middle and rear) is activated to detect the area below the tip of the punch. When an obstacle is detected, the mold stops moving and the punch cannot touch the obstacle. If the operator decides to continue to move the mold, press the foot switch again and the mold will continue to close. If the obstacle does not move away and is detected again, the die will complete the bending work at crawling speed when the sensor is shielded. |
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Folding box mode Fold into a box The two sides of the first bend will block the front of the laser beam, resulting in the system mistaking for a dangerous obstacle. In this case, if the system is in normal mode, the tool will stop moving and wait for the operation of the foot switch. If the workpiece is still in the original position and the foot switch is pressed, the die can only be closed according to the creeping speed There will be delays. Folding box mode will not cause this kind of time loss. The mold will continue to move to the shielding point at high speed after it stops at the folded sides. Only when the foot switch is depressed can the mold continue to move to the closed position. From the top of the bending stroke to the top edge of both sides of the workpiece, the front, middle and back parts of the laser are activated. After reaching the upper edge of both sides of the workpiece, the front and back parts of the laser fail to continue the rest of the journey. The middle part of the laser remains active until it reaches the shielding point, or an obstacle is found. If an obstacle is detected in the middle part of the laser, the tool will stop moving, and the rest of the travel to the shielding point can only be completed at crawling speed. The folding box mode is also sometimes used to ignore interference from the rear stop. In the folding box mode, the back stop is regarded as the folding edge of the workpiece. In this way, the front and rear parts of the laser are shielded starting from the top of the back stop, and only the middle part remains effective. Or the shape of the plate, first fold the opposite side, and then rotate the remaining two sides of the workpiece horizontally. |  |
 | Equipment risk assessment The operation danger area of the bending machine is mainly the mold on the front of the bending machine and its related areas, such as the moving supporting material, the moving retaining material and the warped workpiece; The personnel can enter the dangerous operation area from the back, and the left and right sides can enter between the upper and lower dies at the front and back, which is easy to cause the third party or debugging hazards; the front upper die of the equipment is used for pressing and forming the materials, The hydraulic system does not meet the relevant requirements of gb28243-2012 safety technical requirements for hydraulic sheet metal bending machine, and protective measures should be taken to prevent the corresponding hazards; Safety design equipment transformation Safety protection measures are added on the front of the equipment. The protection device moves up and down the slide plate by fixing the transmitter and receiver on both sides of the slide plate of the bending machine. The transmitter sends out the laser band, and the receiver receives the complete signal, so the machine tool works normally; If there is an obstacle (operator's hand) under the mold, the protection device will immediately stop the slide down to ensure safety. The laser protection device not only considers safety, but also maximizes the production efficiency. |
 | Lazer A safety protection system installed on the hydraulic bending machine provides an effective solution for the safety of the operator and the production efficiency of the machine tool. It has little impact on production efficiency, and can be suitable for high-speed bending machine with high-speed equipment of more than 150 mm / s. The safety system shall conform to sil3 safety level / SE, the design shall be standard and solid, and meet the requirements of man-machine and site. Safety products belong to preventive protection measures, active protection measures, and the life safety of operators. |
Note: the safety project must be carried out by the professional safety personnel of Lihong in the early stage of equipment risk assessment, safety loop design, etc. due to different processing methods and products, the same equipment safety design shall be carried out by the professional safety personnel.
Lihong Safety Equipment Engineering (Shanghai) Co., Ltd.
E-Mail: info@lh-safety.com
Address: 581 Xiuchuan Road, Chuansha Town, Pudong New District, Shanghai
(Greenland East Coast International Plaza-Room A 313)
Copyright © Lihong Safety Equipment Engineering (Shanghai) Co., Ltd. ICP 19034341-1 Technical support: Yuanma Technology
