Detection device

Abstract

The invention provides a detection device. The device is arranged on a line printing path of a printer in an assembling mode for foreign matter detection. The detection device comprises a first frame body, a first rotating shaft, two flexible parts and a sensing module. The first rotating shaft is pivoted on the first frame body and is provided with a first central shaft. The two flexible parts are arranged at two opposite ends of the first rotating shaft in the direction of the first central shaft and are assembled to provide initial torsion for the first rotating shaft. Each flexible part is connected with the first rotating shaft and the first frame body. The sensing module comprises a detection plate having a first side and a second side opposite to each other. The first side is connected with the first rotating shaft. When the second side of the detection plate is stressed during foreign matter detection, the detection plate drives the first rotating shaft, resists the initial torsion and rotates around the first central shaft, so that the sensing module stably detects the rotation of the first rotating shaft and the detection plate.

Description

technical field [0001] The invention relates to a detection device, in particular to a detection device with a concentric elastic structure applied to a printer. Background technique [0002] With the development of inkjet technology, the efficiency of the inkjet head is getting higher and higher, and the speed of the ink carriage carrying the inkjet head is also getting faster and faster. However, when the ink cart is moving at high speed, if a foreign object enters the printing path, it is easy to cause a high-speed impact. In addition to causing damage to the machine, it may also cause personal injury. Therefore, the foreign object detection device on the ink cart is extremely important. [0003] On the other hand, with the development of additive manufacturing (Additive Manufacturing) technology in recent years, the printing speed has also been greatly improved, enabling additive manufacturing to be mass-produced, and additive manufacturing has fewer restrictions than tr...

AI Technical Summary

Problems solved by technology

However, due to the uneven force direction of the tension spring on the detection board, the detection board must overcome the initial torsion force and static friction force when it touches a foreign object, and cannot react in time, delaying the time for the ink car to stop

Furthermore, in the framework of the tension spring combined with the side of the detection board, since the initial torsion force provided by the tension spring relative to the printing path has directionality, when the detection board performs detection on the back and forth printing path, it is necessary to overcome the different provision. Initial torque, causing inconsistent detection sensitivity

Images