Automatic selection feeding system of injection molding machine for automotive interior trim parts and control system thereof

Abstract

The invention discloses an automatic selection feeding system of an injection molding machine for automotive interior trim parts and a control system thereof. The automatic selection feeding system ofan injection molding machine for automotive interior trim parts and the control system thereof solve the problems that in the prior art, automatic selection of raw materials cannot be carried out, the material changing process is too long in time consumption and low in efficiency, material changing errors are prone to occurrence, then products are scrapped, and the yield and quality are affected.The automatic selection feeding system of the injection molding machine for the automotive interior trim parts and the control system thereof are characterized in that a plurality of drying materialtanks are connected with small material tanks of a plurality of injection molding machines through material distributing valves and feeding pipelines, a mold ID coding plug and a tool clamp ID codingplug are installed at the mold installation end of each injection molding machine, and a PLC control system checks whether the injection molding machines and the drying material tanks lack materials or not in a sequential inspection mode and conducts feeding. The automatic selection feeding system of the injection molding machine for the automotive interior trim parts and the control system thereof have the beneficial effects that flexibility of the feeding mode is achieved, automatic raw material selection is achieved, manual operation is reduced, generation of mistaken selection of the raw materials of the injection molding machines are effectively prevented, continuous production and monitoring functions are achieved, the product production efficiency and the product quality are improved, the feeding mode is flexible, energy is saved, the consumption is reduced, single-time material changing time is saved, and the production efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of industrial automation, and in particular relates to an automatic material selection system and a control system for an injection molding machine used for automotive interior parts. Background technique [0002] Injection molding machines are molding equipment that make thermoplastics or thermosetting plastics into plastic products of various shapes. The production process of plastic products is as follows: feed the raw materials into the barrel, and after the raw materials are dried, they are sent to the injection molding machine for melting and plasticization, and high pressure is applied to the molten plastic to make it inject and fill the mold cavity. In the existing technology, in the case of multiple injection molding machines, each injection molding machine is equipped with a barrel. The disadvantage of this structure is that after the raw materials in the barrel are used up, manual feeding is requi...

AI Technical Summary

Problems solved by technology

However, according to the operating process disclosed in the utility model specification, the utility model is not automatically selected to supply materials from the drying dehumidifier to the photoelectric suction hopper of the injection molding machine. It needs to be preset manually, and the automation level is still relatively low. There will be errors in material selection, resulting in product scrapping

[0005] Specifically in the injection molding production of automotive interior parts, the automatic feeding system of injection molding machines in the current technology includes 4 dry material tanks and 4 injection molding machines. When feeding materials to the injection molding machines, each dry material tank is supplied to each The small material tank of each injection molding machine is used for feeding, that is, the feeding station of the injection molding machine in the prior art uses one dry material tank corresponding to one injection molding machine, and each dry material tank supplies material to the small material tank of each injection molding machine , the existing problem is;

[0006] First, the layout of 4 dry material tanks and 4 injection molding machines is that each dry material tank is installed on one side of each injection molding machine, and the 4 dry material tanks and 4 injection molding machines are arranged in a row, and each injection molding machine One operator is required to operate, which covers a large area and many operators. There is also a feeding bucket next to each drying material tank. The operator needs to always pay attention to whether there is a shortage of material. When there is a shortage of material, the operator needs to feed the feeding bucket Adding materials in the middle to ensure that there is no shortage of materials in the drying tank. If the feeding is not timely, it will affect the drying time of the raw materials in the drying tank. If the drying time is too short, it will affect the quality of the product:

[0007] Second, when the injection molding machine is replacing the molds and fixtures of automotive interior parts, it is necessary to manually confirm whether the dry material tank needs to be replaced with new materials. Add new raw materials and dry the new raw materials before normal production, which will inevitably affect production efficiency;

[0008] Third, with the improvement of production tempo and the frequency of mold change, the number of times of manual material replacement is also increasing, and the risk of human error in material replacement is also increasing. Once a material replacement error occurs, all products will be scrapped, and need refueling;

[0009] Fourth, due to the continuous simplification of personnel in production, the original equipment only has a simple feeding function, and there is no audible and visual text alarm prompt in case of material blockage, and there is no material shortage prompt, which leads to untimely processing of problems and affects output and quality

[0011] This invention simply says that it uses PLC to control automatic feeding, which is not only convenient to operate, but also has the advantage of large processing capacity, but this invention only briefly introduces the general content, there is no clear and complete description of the content of the invention, and there is no specific disclosure of PLC. The control system does not have the function of automatically selecting the feeding material

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