Easy-to-adjust screen tightening device

Abstract

The invention relates to the technical field of screen printing machines, and discloses an easy-to-adjust screen tightening device. The easy-to-adjust screen tightening device comprises a mounting platform, wherein a plurality of groups of clamping devices are fixedly connected on the mounting platform in the form of a circular array; each group of clamping devices comprises a plurality of clamping devices which are uniformly and fixedly connected to the mounting platform at equal intervals; each clamping device comprises a mounting plate, a driving motor, a fixing frame, a rotating rod, a first screw, a threaded hole, a moving plate, a connecting plate and a positioning device; the mounting plates are fixedly connected to the mounting platform; each driving motor is fixedly connected to one end of each mounting plate; each fixing frame is fixedly connected to the other end of each mounting plate; each rotating rod is fixedly connected to an output end of each driving motor; and one end, far away from each driving motor, of each rotating rod passes through each fixing frame and extends into each fixing frame. The easy-to-adjust screen tensioning device is convenient for clamping ascreen. Moreover, the screen is positioned above a workpiece, and is prevented from being pressed against the workpiece during printing, so that the product printing effect is relatively good.

Description

technical field [0001] The invention relates to the technical field of screen printing machines, in particular to an adjustable screen tensioning device. Background technique [0002] The full name of the screen printing machine is "screen printing machine". It is a kind of equipment that prints solder paste or patch glue onto the PCB pad through the screen. It can be divided into vertical screen printing machine, oblique arm screen printing machine, and turntable screen printing Machine, four-column screen printing machine and automatic screen printing machine, mainly used in the electronic processing industry, printed circuit board silk screen logo, instrument shell panel logo, solder paste printing in the process of circuit board processing, etc. Before use, the wire mesh needs to be tightened and fixed to the frame before it can be used in the wire mesh machine. [0003] In the patent No. CN107650494A, an adjustable wire mesh tensioning device is disclosed, including a ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an easy-to-adjust screen tensioning device, which is convenient for clamping the screen, and the screen is located above all the workpieces, and will not touch the workpieces during printing, so that the product The printing effect is better, and it solves some connecting mechanisms in the existing device, such as the slide table, drive rod, adjusting screw and adjusting nut, which are all above the screen, and are easy to push against the processed workpiece during silk screen processing. , which in turn leads to defective printing and lower product quality

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