Polishing vacuum absorption device capable of improving absorption efficiency

Abstract

The invention discloses a polishing vacuum absorption device capable of improving absorption efficiency. The device comprises a negative-pressure cavity, an absorption cover plate, and a conveying belt positioned above the absorption cover plate; the absorption cover plate is provided with multiple rows of absorption holes in the motion direction of the conveying belt; each row of absorption holes are uniformly distributed at intervals; the conveying belt is provided with multiple rows of open holes corresponding to each row of absorption holes on the lower side; each row of open holes are uniformly distributed at intervals; the negative-pressure cavity is provided with an air sucking port for connecting with vacuumizing equipment by a pipeline; the absorption cover plate is provided with staggered absorbing areas; a gap between front and back adjacent absorption holes in each row is a; the length of each absorption hole is L; a gap between front and back adjacent open holes in each row on the conveying belt is b; the length of each open hole is l; L is bigger than l and smaller than 2l+b; meanwhile, a is smaller than 2l+b and bigger than b; a, L, b and l are all bigger than 0; and when the conveying belt is operated, only part of open holes always communicate with the absorption holes in the staggered absorption areas. The device can achieve excellent absorption efficiency without needing to increasing the power of the vacuumizing equipment.

Description

technical field [0001] The invention relates to a grinding vacuum adsorption device capable of enhancing adsorption efficiency. Background technique [0002] Because there is no assembly and disassembly process compared with traditional positioning tooling, it can simplify operations and improve efficiency. It is known that enterprises use vacuum adsorption devices to absorb and fix workpieces on the conveyor belt when they streamline and polish workpieces. [0003] The current common vacuum adsorption device mainly includes a negative pressure chamber, an adsorption cover, pipelines and vacuuming equipment. The negative pressure chamber is formed by enclosing and splicing the bottom plate and the surrounding side plates. The adsorption cover is fixed on the upper part of the negative pressure chamber. The adsorption cover is densely covered with adsorption holes, and the transmission belt above the adsorption cover is usually densely covered with holes hole. The side plat...

AI Technical Summary

Problems solved by technology

[0004] However, the problems exposed by the known above-mentioned adsorption devices during long-term use are:

[0005] The suction force of the negative pressure chamber for the workpiece is often not enough, and the adsorption efficiency is not high. The reason is that when the belt runs so that the upper opening matches the adsorption hole on the adsorption cover plate, the actual adsorption hole that works on the adsorption workpiece is very small. less, while the rest of the adsorption holes ventilate with the outside world (air leakage) through the openings, which reduces the negative pressure performance in the negative pressure chamber and affects the adsorption efficiency.

[0006] In order to solve the above problems, the current improvement measures are usually to replace the high-power vacuum equipment to enhance the suction, but the actual effect is limited, and it increases the production cost of the enterprise

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