How to adjust the hot runner mold?

How to adjust the hot runner mold?

The adjustment process of hot runner mold includes the following three aspects:

1. Preparation stage

(1) Familiar with the mold structure: First of all, the operator needs to read the mold design drawings and instructions in detail to understand the structure, characteristics and working principles of the mold, especially the layout and operation of the hot runner system.

(2) Check the status of the equipment: check the normal operation of the injection molding machine, hot runner controller, temperature control instrument and other equipment to ensure that the supply of power and air supply is stable.

(3) Prepare tools and materials: Prepare tools that may be required during the commissioning process, such as screwdrivers, wrenches, thermometers, etc., and necessary spare parts and raw materials.

2. Debugging phase

(1) Set temperature parameters: set reasonable hot runner temperature parameters according to the requirements of molds and raw materials. Usually, this requires reference to the melting temperature range of the material and the temperature range recommended in the mold design.

(1) Start the hot runner system: Start the hot runner system in the order of operation, and pay attention to the display of the temperature control instrument to ensure that the temperature is stable and reaches the set value.

(2) Install the mold: Install the mold on the injection molding machine, and ensure that the mold and the injection molding machine alignment is accurate to avoid deviation.

(3) Injection test: preliminary injection test to observe the flow and molding effect of molten plastic. Adjust injection speed, pressure and time according to test results.

(5) Temperature fine-tuning: According to the results of the injection test, the temperature of the hot runner is fine-tuned to obtain the best molding effect.

(6) Product quality inspection: quality inspection of products, including appearance, size and internal structure. If there are unqualified products, it is necessary to further adjust the mold parameters or check the hot runner system.

3. Maintenance phase

(1) Regular cleaning: Clean the hot runner system and mold regularly, remove accumulated residual materials and dust, and keep it in good working condition.

(2) Inspection and maintenance: regularly check the various components of the hot runner system, such as heaters, thermocouples, shunt plates, etc., to ensure that they work normally and replace the damaged parts in time.

(3) Record data: record the temperature parameters, injection parameters and product quality inspection results of each adjustment for subsequent analysis and improvement.

Through the above steps, the hot runner mold adjustment process can be completed. It should be noted that the process of adjustment should always be careful and patient, gradually adjust the parameters and observe the effect, in order to obtain the best molding effect and product quality. At the same time, the operator needs to have certain professional knowledge and experience to ensure the accuracy and safety of the adjustment.