Views: 66 Author: Site Editor Publish Time: 2022-09-05 Origin: Site
Use, operation and maintenance of molds: correct process conditions, reasonable formula, applicable process parameters, skilled operators, correct operation and use methods are the keys to the maintenance of invisible molds.
Here is the list
How to remove the mold of plastic pipe extruder?
How to dismantle the mold of plastic pipe extruder?
How to install the mold of plastic pipe extruder?
Removal and installation of screws and nuts: Tighten clockwise, loosen counterclockwise (the direction of screw tightening for special molds may change). The screws and nuts for disassembly and assembly must be symmetrical one by one, then loosen them all in diagonal sequence, and then remove them one by one. To install the screws and nuts, first apply high temperature grease [such as two-fluid molybdenum oil, etc.] on the screw holes of the screws and nuts, then screw them all in place, symmetrically one by one, diagonally, depending on the situation of the screws’ size. Lock the wrench.
Demolition: According to the production plan, directed by the person in charge. Before demolding, according to the actual situation, add or not add a little stop material, try to extrude the material generated in the barrel out of the die mouth until production or use to judge whether it needs half demolding or demoulding demoulding.
After removing the outer mold body, shunt bracket, mandrel and other parts of the whole mold, take out the residual material, clean up the sticky material and sundries in each part, and check whether the mold is intact. Then apply a protective coating. Rust oil, assemble the complete set of molds, and place them on the designated mold rack.
Semi-molding: According to the production arrangement and mold structure, it is determined that only the mold of the mandrel mold needs to be replaced, and semi-molding is performed, that is, the mold and the pressure plate are removed, and the mandrel tie rod nut or the mandrel connecting tooth is loose. Remove the mandrel and clean the material to the point where the mandrel can be replaced (the material may expand due to heat at this point).
The mold is installed: then clean the removed mold. If it is damaged and needs to be repaired, apply anti-rust oil and place it on the designated mold base. For hard-to-remove screws and nuts, oil or wax should be applied before removal, which saves effort and reduces damage to screws and tools.
Molding: According to the production plan, the mold needs to be replaced. 1. Find the mold, remember the specifications and models, find the corresponding mandrel and mold, and match the screws, nuts, heating rings, sizing sleeves, sealing plates, etc. Printing equipment and tools, etc. If the model does not match, ask the person in charge to check whether the size of the transition sleeve is consistent with the connection between the mold and the confluence core. Check whether the heating device in the mandrel is in good condition, and clean the mold oil and debris. If it is rusted or damaged for a long time, it should be repaired or polished, and then the machine is connected with the mold piece by piece. The gap between the mold and the mandrel, if it is a profiled mold, use a level to level it, screw all the connecting screws and nuts in place, connect the heating wire and the thermocouple feedback line, and remember that the thermocouple must be inserted in place. Remove and replace the sizing sleeve and vacuum box sealing plate or vacuum and cooling water connection pipes on the profile forming mold, and install it horizontally with the mold. The pulling platen, cutting fixture and auxiliary equipment accessories of the fixed-length device, etc., can be regarded as a complete mold installation after all verifications are correct. In short, in the process of mold loading and demolding, the screw or wrench must be set well, and the surface of the runner must be well protected. suffer any harm.
Seahawk Machinery will always strive to keep forging ahead and making innovations, to establish good relationships with both domestic and international customers to create new heights in the rubber and plastic machinery industry.
