Mould hydraulic tester

Abstract

The invention relates to a mould hydraulic tester, comprising an oil tank, a hydraulic pump, a motor connected with a pump shaft, a proportional valve, a valve plate, a plurality of electromagnetic valves, a cooler, a main controller and an electric cabinet, wherein the pump shaft is connected with the motor, the proportional value is used for controlling pressure and flow rate of hydraulic oil; the electromagnetic valves are arranged on the valve plate and are used for controlling the on-off of a hydraulic channel; the cooler is used for cooling the hydraulic oil; the main controller and theelectric cabinet are used for controlling the actions of the proportional value, the motor and the electromagnetic valves; the oil tank is communicated with a hydraulic pump by virtue of a pipeline; the hydraulic pump is communicated with the proportional value by virtue of the pipeline; the proportional value is communicated with the valve plate by virtue of the pipeline; the valve plate is communicated with an oil cylinder of the mould to be detected by virtue of the pipeline; the value plate is also communicated with the cooler by virtue of the pipeline; the cooler is communicated with theoil tank by virtue of the pipeline so as to form a hydraulic detection and cooling loop; and the motor, the proportional value and a plurality of electromagnetic valves are connected with the main controller by virtue of the electric cabinet.

Description

technical field [0001] The invention relates to the technical field of mold hydraulic system and ejection system detection, in particular to a mold hydraulic testing machine for testing the mold hydraulic system and ejection system. Background technique [0002] At present, mold manufacturers generally can only test molds, especially injection molds, by testing molds on injection molding machines, and there are a series of shortcomings in testing molds on injection molding machines: [0003] 1. When the mold is tested on the machine, if the mold has the following problems: there is a defect in the ejector mechanism, such as impurities that have not been cleaned up during the mold assembly, resulting in problems with the ejection, and it is impossible to continue the mold trial; the rubber in the mold cylinder The quality of the ring is not good enough, resulting in oil leakage in the mold cylinder; when the top block of the mold is loose or dangerous, it is necessary to remo...

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Problems solved by technology

[0003] 1. When the mold is tested on the machine, if the mold has the following problems: there is a defect in the ejector mechanism, such as impurities that have not been cleaned up during the mold assembly, resulting in problems with the ejection, and it is impossible to continue the mold trial; the rubber in the mold cylinder The quality of the ring is not good enough, resulting in oil leakage in the mold cylinder; when the top block of the mold is loose or dangerous, it is necessary to remove the mold from the machine and re-adjust and process the mold, which will cause trouble and damage caused by rework The loss is very huge, especially on large molds, such as the production of bumpers, dashboards, door panels, sub-dashboards and other molds. For example, wait until this type of large mold is tested on the injection molding machine before finding the problem and then unloading the mold. Adjustment, processing, this trouble and the loss caused are very huge

[0004] 2. After the mold is tested on the machine, it is usually shipped after several proofings and customer acceptance. For some potential problems of the mold, it can only be cleared after the customer purchases the mold and goes back to produce a certain number of products or use it for a certain period of time. It is found that mold manufacturers often need to send technicians to carry out maintenance, which also brings delays in production time to customers, resulting in economic losses, and also creates a bad impression on customers

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