Knotted fishing net machine pore plate moving device

Abstract

The invention provides a knotted fishing net machine pore plate moving device. The knotted fishing net machine pore plate moving device comprises a gear and cam combination (1), a first gear (3), a second gear (4) and a third gear (6), a main shaft (2), a rotating shaft (5) and a gear and cylindrical cam combination, wherein the main shaft (2) is used for supporting the rotating of the first gear (3) and cam combination (1). The knotted fishing net machine pore plate moving device has the advantages that the requirements for movement of a pore plate in three directions are met by three independent mechanisms respectively, each implementation mechanism is formed by simple mechanisms, complex mechanisms are avoided, and therefore design and analysis are convenient; kinematic pairs in the implementation mechanisms comprise the revolute pair, the cylindrical pair and the spherical pair, all the kinematic pairs are surface contact kinematic pairs, and the surface contact kinematic pairs are large in contact area, low in contact stress, and beneficial to long service life and reliability of the device compared with higher pairs; the kinematic mechanisms in three directions need three types of kinematic input, the three types of kinematic input are driven by the main shaft in a unified mode, as a result, there is no need for multiple driving links, and cost is lowered.

Description

technical field

[0001] The invention relates to an orifice moving device for a knotted fishing net machine, which belongs to the technical field of aquatic products. Background technique

[0002] In the knotted fishing net machine, in order to realize the knotting of the braided thread, it must be pulled by the orifice plate to change the thread in the upper and lower hooks. According to the weaving process, the movement form of the orifice plate is required to be: linear movement in three directions in space, that is, linear movement along the X, Y and Z directions respectively, X- along the front and rear directions of the machine (horizontal), Y- along the height of the machine (vertical) direction, Z- along the width of the machine (horizontal), obviously, the X, Y and Z directions are vertical respectively, such as figure 1 shown. In order to accurately achieve the purpose of weaving, at any time, the linear movement position of the orifice plate along the three direc...

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