Pneumatic metal can clamping unit

Abstract

The invention discloses a pneumatic metal can clamping unit which comprises a high pressure air supply system, a base, an annular positioning plate arranged on the base, a cylinder capable of being sleeved outside of the annular positioning plate, a shell fixedly connected with the base and an air inlet which is arranged on the shell and connected with the air supply system, wherein the center of the annular positioning plate is provided with a channel for accommodating and clamping a metal can; the top of the cylinder is inwards provided with an annular bump; an annular boss is arranged outside the cylinder; the annular boss, the shell and the cylinder form a closed air chamber; a certain distance is reserved between the lower end of the cylinder and the annular positioning plate; and the lower end of the bump and the annular positioning plate form an annular groove in-built with an elastic rubber block. By adopting the pneumatic metal can clamping unit in the technical scheme, the clamping is reliable, the clamping force is uniform and adjustable, the operation is simple, the centering property is excellent, a centering error generated by relaxation can be avoided, and appearance defects such as pollution, scratches and the like on an aluminium pot product can be avoided.

Description

technical field [0001] The invention relates to a neck tightening machine for metal cans, in particular to a clamper for clamping metal cans during the neck tightening operation. Background technique [0002] After the metal aerosol can is printed on the outer surface, it needs to narrow the mouth of the can through a neck machine and perform flanging and other processes. Each process requires a clamp to firmly clamp the product and send it to the next station. Because The tank wall is thin, which can easily lead to deformation of the product clamp or unstable clamping, resulting in falling out and scrapping. [0003] Please refer to figure 1 The shown existing aluminum aerosol can clamp is clamped by a combination of multi-piece nylon clamping sleeve 101 and spring 501 , and the nylon clamping sleeve 101 is located in the housing 401 of the clamp. Before the aluminum can enters the clamp, it is necessary to press down the pressure wheel 301 installed on the lever 201 with...

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a pneumatic metal tank clamp, which has the characteristics of firm clamping, uniform and adjustable clamping force, and simple operation, and has good neutrality and will not Neutrality error occurs due to relaxation; it will not cause appearance defects such as pollution and scratches to aluminum can products

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