How to improve the mold change efficiency of aluminum alloy die casting manufacturers

How to improve the mold change efficiency of aluminum alloy die casting manufacturers

Talking about the mold change efficiency of aluminum alloy die-casting manufacturers, it must be a common problem faced by many aluminum alloy die-casting manufacturers. The mold change efficiency is high, and the production time efficiency and cost are definitely lower. So in order to ensure the smooth progress of production, reduce the loss of downtime and work, and improve the efficiency of mold change?

1. The preparation work before the machine installation must be done carefully:

Aluminum die-casting mold:

1. According to the production plan, check the maintenance status of the die-casting mold 1-2 days in advance (check the key maintenance items again) to ensure that the mold and its accessories are complete, and the mold is free of aluminum chips, grease, dust and other debris. Ensure the smooth progress of product quality and production;

2. For die-casting molds that have been repaired from the machine, after the mold repairs are completed, they should carefully check and fill in the “Die-casting Mold Maintenance Record Form” and “Mold Maintenance Process Card” after the mold repair is completed, and notify the inspector, mold repair team leader, and The die-casting team leader signs on the “Mold Maintenance Process Card”, and should also fill in the “Die-casting Mold Management Resume Form” for key maintenance items, and then perform maintenance as required;https://www.cncmachiningptj.com/medical-machining

3. Check whether the die-casting mold sprue bushing is matched with the pressure cylinder and punch on the die-casting machine to be installed (when the process stipulates the use of special specifications of the pressure cylinder, you should pay special attention not to make a mistake), if the pressure cylinder and punch are not Matching should be prepared in advance;

4. Clean the mounting surface of the movable and fixed molds, especially the mating surface of the sprue sleeve and the pressure cylinder, to ensure that the mounting surface is clean and free of foreign matter, and the flatness meets the requirements;

5. Prepare the pressure plate, pressure plate screw, tie rod (or top rod) used with this mold, check whether there are defects such as cracks, bending, etc., whether the tie rod (or top rod) size is consistent, https://www.cncmachiningptj.com/highspeedmachiningand prepare the mold mounting tools and oil barrels used.

Die Casting Machine:

1. In accordance with the general operating rules of die casting machine, check whether the die casting machine is normal and intact, and clean and wipe the moving and fixed template and T-slot of the machine tool to ensure that the template is clean. Protruding debris is strictly prohibited to ensure that the moving and fixed template is clean. The parallelism meets the requirements;

2. Clean and wipe the flange of the pressure cylinder to ensure no oil, burrs, and debris;

3. Clean the water and oil pipe joints on the die-casting machine to ensure that there is no aluminum chips, dust and other sundries. https://www.cncmachiningptj.com/cncaluminumpartsCheck whether there is a problem with the travel switch and the circuit, and whether there is a safety hazard.

Before installing the mold, hoist the mold to be installed next to the die-casting machine.

2. The operating procedures of mold assembly, tooling and mold disassembly:

Disassemble the mold on the original machine tool according to the workshop production instructions: in principle, the fixed mold and the movable mold are disassembled separately. The purpose is to facilitate the maintenance and inspection of the mold by the mold repairer, and repair the problems that occur in the mold.

A first step of demoulding: dismantle the movable mould first

When using a lever

(1) Clamp the mold and hang the wire rope firmly. Remove water pipes, oil pipes and lines. The oil pipes must be connected to the oil drum to prevent the oil from flowing into the trench;https://www.cncmachiningptj.com/CNCMilling1684

(2) Open the protective window of the crankshaft wall of the clamping mold, and first loosen the 8 nuts on the side of the ejector cylinder plate to separate the tie rod from the ejector plate;

(3) Loosen the movable mold fastening bolts or pressure plate screws, and move the screws about 150mm away from the mold;

(4) Start the machine tool, set the selector switch to the mode of adjusting the clamping force, and lightly turn on the mold opening switch to separate the machine tool template from the movable mold by 300-400mm, in accordance with the principle of easy removal of the tie rod;

(5) After the pull rod is removed or taken out, lightly turn on the mold-clamping switch to close the mold with both hands. After the mold is in place, fasten the movable mold and the machine tool template with screws again;https://www.cncmachiningptj.com/CNCTURNING

(6) Lightly open the mold opening switch to open the mold at a slow speed, and drive along while the mold is opened at a slow speed, until the movable mold is opened in place;

(7) Loosen the fastening screws of the movable mold to separate the movable mold from the machine tool template;

(8) Pull out the big crane, and then lift the movable mold out of the machine tool.

Do not use the tie rod, when using the top rod

(1) Clamp the mold, retract the top plate in place, and hang the wire rope firmly. Remove water pipes, oil pipes and lines. The oil pipes must be connected to the oil drum to prevent the oil from flowing into the trench;

(2) Start the machine tool, set the selector switch to the position of adjusting the clamping force, and lightly turn on the mold opening switch to make the mold opening in place;https://www.cncmachiningptj.com/brass-machining

(3) Loosen the movable mold fastening screw or pressing plate screw, and move the screw about 150mm away from the mold to separate the movable mold from the machine tool template;

(4) Pull out the big crane, and then lift the movable mold out of the machine tool.

Step 2: After dismantling the fixed mold

(1) Hang the steel wire rope firmly, remove the water pipe, oil pipe and line, the oil pipe must be connected to the oil drum to prevent the oil from flowing into the trench;

(2) Loosen the fixing screw of the fixed mold and move the screw about 150mm away from the mold;https://www.cncmachiningptj.com/copper-machining

(3) The crane moves slightly to the movable mold side, and the crane is lifted up and down to move the fixed mold slightly to the pressure cylinder port, and then the crane continues to move to the movable mold side, and the machine tool is lifted out of the pressure cylinder about 100mm after it is separated from the pressure cylinder.

The first step of B loading mold: first install the fixed mold

(1) Check whether the pressure cylinder and punch are consistent with the sprue sleeve of the installed mold. If they do not match, replace the pressure cylinder first. The mating surfaces between the pressure cylinder sleeve, the pressure cylinder and the die casting machine must be cleaned;

(2) After passing the inspection, hoist the fixed mold into the machine tool, move the crane lightly to make the sprue sleeve and the pressure cylinder align and connect;

(3) Put the pressure plate screw into the template groove of the machine tool, and push it into the mold fixing groove to tighten;https://www.cncmachiningptj.com/titanium-machining

(4) Install water pipes, oil pipes and lines.

Step 2: Post-install the movable mold

When using a lever

(1) Check whether the position of the tie rod is consistent with the tie rod hole of the installed movable mold, and correct it in time if it is inconsistent;

(2) Hoist the movable mold into the machine tool, so that the movable mold guide sleeve and the fixed mold guide column are aligned and hung flat;

(3) Insert the big shoulder. Start the machine tool, set the selector switch to the position of adjusting the clamping force, and lightly turn on the clamping switch with both hands to press the movable and fixed molds tightly and hoist the vehicle firmly;

(4) Gently turn on the mold opening switch to separate the machine tool template from the movable mold by 300-400mm, and align the tie rod with the mold tie rod hole and tighten it;

(5) Clamp the mold and press it tightly, put the pressure plate screw into the template groove, and push it into the mold fixing groove to tighten;

(6) Install water pipes, oil pipes and lines.

Do not use the tie rod, when using the top rod

(1) Check whether the top bar position is reasonable, and correct it in time if it is unreasonable;https://www.cncmachiningptj.com/delrin

(2) Hoist the movable mold into the machine tool, so that the movable mold guide sleeve and the fixed mold guide column are aligned and hung flat;

(3) Start the machine tool, set the selector switch to the position of adjusting the clamping force, and lightly turn on the clamping switch with both hands to press the movable and fixed molds tightly and hoist the vehicle firmly;

(4) Put the pressure plate screw into the template groove and push it into the mold fixing groove to tighten;

(5) Insert the big carry, and install the water pipes, oil pipes and wiring.

Three, installation confirmation

After the installation is complete, start the test run, confirm that the water pipes and oil pipes are not leaking, and the stroke switch circuit is correct, and then inform the die-casting operator to start.

Four, safety precautions for mold assembly technicians:

1. Labor insurance and protective equipment must be worn, if not complete, please get it in time;

2. Confirm whether the wire rope and the driving are in good condition, and whether the driving is normal;https://www.cncmachiningptj.com/die-casting

3. The height of the lifting mold must be restricted within the range of 30-50cm;

4. Check whether the power buttons of the die-casting machine are normal;