Introduction to the detailed management of the production of granule machine production line

(1) The feeding machine of the granule machine, different biomass materials should be stacked in a special warehouse, away from (flammable, explosive, fire source) and marked, indicating the name, humidity, and date of purchase of the raw materials.

The warehouse manager of the granule machine will uniformly number the feeding port of each granule machine, and after drawing the regional distribution map of the whole yard, notify the laboratory, control operator, equipment administrator, and loader respectively, and cooperate with the above personnel. Determine the slogan of the material input and the storage of each material.

(2) Strengthen the management of materials and dust. Each feeding port should have a mark, the particle machine indicates the name and humidity of the raw materials stored in it; the feeding port of each particle machine should have the same mark as the cooler and the vibrating screen, indicating the specification and number;

Each granule production line is responsible for the feed management by the special person. When the biomass materials are put into storage, they must be checked and signed by both the receiving personnel and the supplier personnel to prevent errors during the feeding process and cause production losses. The granule machine production line library The staff should uniformly number the raw material feeding ports and make a distribution map of the feeding ports, and notify the laboratory and the control and equipment administrator respectively.

How to repair the abnormal situation of the plastic granulator when it is used

The shortcomings and anomalies of the plastic granulator are ultimately reflected in the quality of the granules.

First, how to overcome the lack of product extrusion When the product is insufficient, the material is often solidified before the cavity is filled. Of course, there are many other reasons.

1 Equipment reasons: a. Hopper interrupted material: b. Some or all of the hopper neck is blocked; c. The feeding amount is not enough; d. The feeding control system operation is abnormal: e. The plasticizing capacity of the injection molding machine: f. The injection cycle caused by the equipment is abnormal.
2 Extrusion conditions Cause a. The injection pressure is too low; b. The injection pressure loss is too large during the extrusion cycle; c. The injection time is too short; d. The injection full pressure is too short; e. The injection rate is too slow: f. The flow in the cavity is interrupted; g. The filling rate is not equal; h. The injection cycle caused by the operating conditions is abnormal.
3 temperature reasons: a. increase the barrel temperature; b. increase the nozzle temperature; c. check the millivoltmeter, thermocouple, resistance electric heating coil (or far infrared heating device) and heating system; d. improve the mold temperature; e. Check the mold temperature control device.
4 mold reasons: a. the flow path is too small; b. the gate is too small; the nozzle hole is too small; d. the gate position is not reasonable; e. the number of gates is insufficient: f. the cold material hole is too small; g. insufficient exhaust; h. The injection cycle caused by the mold is abnormal.
5 Material reasons: material fluidity is too poor.

Second, particle defects can be divided into the following points:

1. Insufficient injection of the product;
2 product overflow;
3 product dents and bubbles;
4 products have seams;
5 products are brittle;
6 plastic discoloration;
7 products have silver, markings, and flow marks;
8 product turbid at the gate;
9 product warpage and shrinkage;
10 product size is not allowed;

3. How to overcome the flashing of the product by the plastic granulator. The overflow of the product is often caused by the defects of the mold. Other reasons are: the injection force is greater than the clamping force, the material temperature is too high, the exhaust gas is insufficient, the feeding is excessive, and the mold is a dip. There are foreign objects and so on.

Failure to pay attention to the use of waste plastic granulators will lead to accidents

The use of waste plastic granulators often does not receive enough attention, so it will also cause some unnecessary accidents. So what problems should we pay attention to when using waste plastic granulators?

Pay attention to fire safety, fire extinguishers need to be placed near equipment that uses heat transfer oil. In the event of a malfunction or abnormal condition, the person concerned must be reported and handled by the service personnel. If it is found that there is an abnormal phenomenon affecting safety, immediately press the emergency stop switch.

Do not use low-quality materials with metal impurities or sediment. Do not place metal objects that may fall into the vicinity of the feed port to prevent the screw or barrel from being worn or jammed or damaged.

The waste plastic granulator should use the hydraulic oil with the cleanliness, viscosity and other indicators to meet the requirements, and provide sufficient cooling water for the oil cooler according to the regulations, so as to prevent the hydraulic components and pipelines from being blocked due to oil pollution or high temperature. Damage such as oil leakage.

Plastic pellet machine extrusion defect control elements

Plastic pellet machine extrusion defect control elements:

The cross-sectional shape of the profiled material is much more complicated than the cross-sectional shape of the pipe, and there are hollow, solid, and plate sections, so the extrusion process requirements are also more demanding. The factors affecting product defects are as follows.

(1) Feeding part of the raw material formula, raw material count, pellet or powder quality, raw material feeding capacity, dehumidification effect, hopper seat cooling effect, hopper seat cooling water channel.

(2) Extrusion part of the screw structure, screw diameter ratio, compression ratio, screw speed, screw temperature control, one heating and cooling of the barrel, the temperature of each section, the distance between the perforated plate and the mold wind feed, plastic particles Main engine current, temperature control instrument and sensor, head melt pressure.

(3) mold part type, flow path size, die length section size, die section dimension size, die gap, compression ratio, template contact surface accuracy, mold and head interface, fastening medium bolt size And the number of the most, positioning pin accuracy, temperature control system.

(4) Plastic granule machine cooling part vacuum pipe, cooling water pipe, vacuum pump, water pump, water circulation cooling system, sizing die section size, sizing die length and number of segments, number of sizing die vacuum channels, sizing die cooling channel diameter and cooling uniformity , vacuum degree, setting mode opening and closing performance, shaping model cavity with sleeve length, vacuum of cooling water tank, length of cooling water tank, installation accuracy of setting block in cooling water tank, sufficient number of vacuum quick-change joints, cooling water flow, product cooling effect , the setting table movement accuracy.

(5) Traction speed and adjustment, traction force, clamping force, type of crawler long tractor, quality of clamping block, shape of special-shaped clamping block, lateral swing control of profiled material, tension control system.

(6) The plastic pellet machine tells you how to cut the cutting machine, automatically reset the cutting, the shape, and material of the sawtooth, the cutting stroke adjustment of the saw, the pneumatic system, the dust collection system, and the fixed length command receiving system.

(7) Turning frame and stacking frame (vehicle) fixed length command, turning frame length, pneumatic system, counting system, flip angle.

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