Screen movement mechanism based on force transmission angle change principle

Abstract

The invention discloses a screen movement mechanism based on a force transmission angle change principle, and relates to the technical field of screening devices. The screen movement mechanism comprises a support, a rotary rod is movably connected to the middle of the support, a threaded block is fixedly connected to the front side of the left side of the support, a screw is movably connected inside the threaded block, a clamping block is movably connected to the left side of the screw, and a movable block is movably connected to the left side of the threaded block. According to the screen movement mechanism based on the force transmission angle change principle, the distance of moving leftwards of the clamping block and the movable block is changed so that swing amplitude of a transmission rod can be adjusted, and the larger the distance of moving leftwards of the movable block is, the larger an deflection angle of a positioning block is, so that the larger the swing amplitude of thetransmission rod is, otherwise, the smaller the amplitude of the swing of the transmission rod is, the aim of adjusting the screening size of the mechanism can be realized by the above process, the practicability and the applicability of the mechanism are improved, the production efficiency is improved, and meanwhile, and the problem that the workload is increased due to frequent replacement of afilter screen is avoided.

Description

Technical field [0001] The invention relates to the technical field of screening devices, in particular to a screen movement mechanism based on the principle of force transmission angle change. Background technique [0002] The screening device is mainly used to screen raw materials of a predetermined size, while filtering out materials that do not meet the standard. The use of the screening device can improve a certain degree of work efficiency. The core of the screening device is the screen, and its working principle is to use the surface of the screen The sieve holes of the sieve screen the raw materials, and the existing sieving device has certain problems in the actual use process. [0003] Since the principle of the screening device is to use the mesh of the screen to screen the raw materials, the screen of one mesh size can only be used for the screening of raw materials of one size. Screening requires the replacement of screens of corresponding sizes. This process takes a ...

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Problems solved by technology

[0003] Since the principle of the screening device is to use the sieve holes to sieve the raw materials, a sieve mesh size can only be applied to the screening of raw materials of one specification and size. Screening needs to replace the screen of the corresponding size. On the one hand, this process takes a certain amount of time, which reduces the production efficiency. On the other hand, it needs to purchase a large number of screens, which increases the cost of production.

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