Trimming cutter assembly of automatic feeding, trimming and water gap shearing machine for decorative injection molding parts

Abstract

The invention discloses a trimming cutter assembly of an automatic feeding, trimming and water gap shearing machine for decorative injection molding parts, and relates to the field of plastic shell processing. The trimming cutter assembly comprises a horizontally-arranged fixing plate, a longitudinally-arranged linear module fixing plate arranged on one side of the fixing plate, at least one reinforcing rib arranged between the fixing plate and the linear module fixing plate, a linear module arranged on one side of the linear module fixing plate, a motor mounting base assembly which is in transmission connection with the linear module, a motor arranged on the motor mounting base assembly, a flexible cutter which is arranged on an output shaft of the motor and has the wear-resisting characteristic, and an air source for pumping air into the flexible cutter. The flexible cutter is of a breathable structure full of air holes. The motor mounting base assembly comprises a first clamping block and a second clamping block, the first clamping block and the second clamping block are each provided with an arc-shaped notch matched with the motor in appearance shape, and the trimming cutter assembly guarantee that unrecoverable deformation of a plastic shell does not occur and the plastic shell is not damaged by sweeps.

Description

technical field [0001] The invention relates to the field of automatic processing of plastic parts, in particular to an edge trimming tool assembly of a machine for automatic feeding, trimming and trimming of decorative injection molded parts. Background technique [0002] There are many products on the market that have high requirements on appearance, especially household appliances, such as smart sweepers. The contours of the outer casing after injection molding are generally rough. Due to the generally poor injection molding accuracy, the assembly accuracy of the outer casing is also very low. Poor, interference or hand cutting often occurs after assembly, seriously affecting the appearance of the product, so the shell often requires secondary processing, that is, the outline of the plastic shell needs to be trimmed. [0003] In the prior art, most of the trimming operations are performed manually, and manual trimming has the technical problems of poor trimming quality, l...

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Problems solved by technology

[0002] There are many products on the market that have high requirements on appearance, especially household appliances, such as smart sweepers. The contours of the outer casing after injection molding are generally rough. Due to the generally poor injection molding accuracy, the assembly accuracy of the outer casing is also very low. Poor, interference or hand cutting often occurs after assembly, seriously affecting the appearance of the product, so the shell often requires secondary processing, that is, the outline of the plastic shell needs to be trimmed

[0003] In the prior art, most of the trimming operations are performed manually, and manual trimming has technical problems such as poor trimming quality, low trimming efficiency, and unstable trimming pass rate

Of course, there are also a small number of automatic equipment for trimming, but these devices use high-rigidity tools to trim the contour of the plastic shell. When the high-rigidity tool trims the plastic shell, on the one hand, the plastic shell The instantaneous force on each position of the outline of the outline will be very large, and the plastic shell is prone to large irreversible deformation, which still leads to the problem of poor assembly accuracy of the plastic shell, which seriously affects the appearance of the product. On the one hand, the chips produced by the high-rigidity tool during edge trimming will splash around, which has a high probability of damaging the appearance of the plastic casing, resulting in a low pass rate of the product, which does not meet the product's appearance requirements

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