3.1 Shut down correctly. When the workshop leader issued the order to start replacing the product, the operators on the preliminary mold side of each machine section immediately stopped receiving materials. When the last bottle in the finished mold was clamped out, and the mouth clamp turned over to the top of the finished mold, the machine stopped. Work, and then operate the relevant air circuit to make the pliers and the pliers mover in the open position, and place a special ring where the gear of the pliers mechanism meshes with the rack of the turning mechanism, so as to prevent the pliers from accidentally returning and causing unnecessary harm.
3.2 Carry out the replacement of the die, the positive blowing head, the bottle clamp, the sleeve and the core. The operator on the side of the prototype mold operates the relevant gas circuit and replaces the core and sleeve. The operator standing on the platform of the bottle conveyor replaces the die and the positive blowing head. After the replacement is completed, the operator on the side of the prototype removes the mouth. The collar where the gear of the clamp mechanism meshes with the rack of the turning mechanism, operates the relevant gas path, and returns to the pliers. At the same time, the operator standing in front of the bottle conveying machine removes the bottom of the mold, replaces the clamp bottle clamp, and replaces the clamp bottle When clamping, the opening of the bottle clamp should match the size of the bottle mouth of the product on the machine.
3.3 Perform the replacement of the initial and finished molds and related clamps. When changing, the first mold and the clamp, you need to use the mold handle and clamp handle made in the workshop, which is safer. After the replacement, the operator on the first mold side closes the relevant gas circuit to form the mold, and puts the tongs in the flip position. At this time, the operator in front of the bottle conveyer should adjust the height of the mold bottom in time.
3.4 Calibration of various institutions.
3.4.1 Correction of the pliers mechanism. After closing the forming mold, start to calibrate the nipper mechanism when the nippers are turned over to the top of the mold. Before calibration, make sure that the air path that controls the flip of the nippers has been connected, the air path that controls the return of the nippers has been disconnected, and ensure that the mold is inside No mold bottom is placed, which is a prerequisite for accurate correction of the jaw mechanism. The person standing on the platform of the bottle conveyor should independently correct the height of the jaws. After the adjustment, the gap between the finished mold and the die should be kept at about one millimeter. This is an important part of our quick product change.
3.4.2 Correction of flapping mechanism and funnel mechanism. While correcting the pliers arm, the operator on the prototype side immediately operated the relevant gas circuit after replacing the bulkhead and the funnel, closed the prototype, and allowed the flapping head to be sealed to the bottom to perform the calibration of the flapping mechanism and the funnel mechanism. When calibrating these two mechanisms, the pliers must be in the flipped position, and also pay attention to calibrate the flapper mechanism first and then calibrate the funnel mechanism. When calibrating the funnel mechanism, first let the funnel fall to the top of the prototype mold, and then let the puff head fall on the funnel, then adjust the funnel arm, and make the funnel about two millimeters away from the funnel arm.
3.4.3 Correction of positive blowing mechanism. After calibrating the funnel mechanism, the operator on the side of the prototype mold operates the relevant air circuit, opens the prototype, returns to the jaws, and lets the positive blowing head drop to the top of the molding mold, and starts to calibrate the positive blowing mechanism. When correcting the positive blowing mechanism, the positive blowing head should be pressed tightly in the center of the groove at the top of the mold.
3.4.4 Height correction of core cylinder. When calibrating the positive blowing mechanism, the operator on the draft side is responsible for adjusting the height of the core cylinder. It should be noted that when adjusting the height of the core cylinder, the jaw should be in the fully returned position, and the height of the jaw mechanism is not required. When adjusting, do not adjust the height of the core cylinder.
3.4.5 Height adjustment of mold bottom. After the correction of the above related mechanisms is completed, the operator on the preliminary mold side operates the relevant gas path to open the mold, and the operator in front of the bottle conveying machine puts the mold bottom and adjusts the height of the mold bottom to an appropriate position. The height of the mold bottom should ensure the mold switch freely.
After the parts are replaced and the mechanism is adjusted in place, turn on the machine section to run.
4. Economic benefit analysis.
After continuous exploration, our product replacement work has been smooth, orderly and efficient. It takes only 20 minutes for a six-group machine to replace a product, and an eight-group machine takes 30 minutes. In view of our company’s main product structure of special-shaped wine bottles, and frequent product changes, according to the current production capacity, our company changes products about 500 times a year. If we save 0.5 hours per product change, we can reduce downtime every year. When 250 units are lost, it is equivalent to producing more than 600,000 more products.
Post time: Oct-25-2021