Automatic feeding device for plastic processing machinery

Abstract

The invention provides an automatic feeding device for plastic processing machinery. The automatic feeding device comprises a plastic raw material cylinder, a constant-volume material cylinder, a mixer, a liquid color master machine and a control system; the bottom of the raw material cylinder is connected with the constant-volume material cylinder through a pipeline; the bottom of the constant-volume material cylinder is connected with the mixer through a pipeline; a liquid color master feeding opening is formed at the upper portion of the mixer; liquid color master is automatically added bythe liquid color master machine; the constant-volume material cylinder is provided with a material level sensor; the lower end of the mixer is connected with the plastic processing machinery through apipeline; and the automatic feeding device is controlled by an automatic program, thereby realizing timed and quantitative addition of the liquid color master and plastic particles, guaranteeing thequality of a product and guaranteeing that different batches of products are consistent in color shade. Meanwhile, the automatic feeding device realizes recycling of the two materials, also realizes that the plastic material is used just after being colored and stirred, reduces waste of the raw materials and lowers the production cost.

Description

technical field [0001] The invention relates to the field of plastic processing and manufacturing, in particular to an automatic feeding device for plastic particles and liquid color masterbatch of a plastic processing machine. Background technique [0002] Coloring preparations can be divided into three categories: toners, masterbatches and liquid masterbatches. Both color powder and color masterbatch are solid, while liquid color masterbatch is a liquid flowable mixture, also commonly known as color oil, color paste, which is composed of one or more of pigments, and / or dyes, and / or functional additives. Several kinds are mixed with liquid carriers. The amount of toner and color masterbatch is relatively large, and liquid color masterbatch is a new type of product. Compared with color masterbatch, it has many advantages, such as less dosage, good dispersion effect, uniform coloring, and fast color change. is increasing, and the scope of use is also expanding. [0003] At...

AI Technical Summary

Problems solved by technology

The recycling equipment described in patent 201420408677.4 recycles plastic raw materials and toner mixtures that have not been processed. After the toner and plastic raw materials are separated, the two are reused separately. The separation degree of the two will affect the subsequent coloring. It is easy to cause uneven coloring, and this coloring method uses toner for coloring, which is easy to cause dust pollution, low degree of automation, time-consuming and labor-intensive

The recovery system described in patent 201510444837.X is for the case where the colorant is toner or color masterbatch, and it is not suitable for liquid color masterbatch, because the patent uses an electronic scale for metering, and the liquid color masterbatch is viscous liquid. It is easy to stick to the electronic scale, making it impossible to pour cleanly, resulting in poor weighing stability, and will pollute the subsequent delivery pipeline

The recycling system described in patent 201510571120.1 does not involve the problem of plastic coloring, but only mentions waste recycling. If toner is used for coloring, the device that absorbs small particles of dust in the equipment will inevitably absorb part of the toner, which will affect the plastic. coloring

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