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Principle of vacuum blister forming machines: Blister forming is also known as thermoplastic forming. This manufacturing process makes use of the vacuum force generated by vacuum pumps to draw heated and softened thermoplastic sheets such as PVC, PET, PETG, APTT, PP, PE, and PS through molds, thereby creating various shapes of vacuum enclosures, blister trays, and foam shells. Common products available on the market include blister packaging for daily necessities, blister packaging for small hardware items, blister packaging for automotive products, blister packaging for electronic devices, blister packaging for food, blister packaging for cosmetics, blister packaging for computer peripherals, blister packaging for toys, blister packaging for sports equipment, and blister packaging for stationery. Methods for troubleshooting high-speed vacuum blister forming machines. The requirements for the control system of such machines are to ensure easy operation, high precision in mechanical actions and temperature control, short production times, and minimal power consumption by the machinery under the same production conditions. So, what are the methods for fixing faults in high-speed vacuum blister forming machines? Today, the editors at Asia Fluid Network will provide you with the following information, in the hope that it will be helpful to everyone. 1. Machine does not start: The input wire is disconnected, the power cable is connected incorrectly, or the voltage is insufficient. II. Inaccurate temperature measurement: Thermocouples and temperature controllers – whether they are installed incorrectly or are damaged. III. The working vacuum level cannot be increased: the air path is blocked, the manual valve or solenoid valve is not closed, the belt of the vacuum pump motor is loose, or the vacuum gauge is damaged. IV. Tripping of the main power switch: leakage in the wires connected to the top of the heating box, leakage in the distribution box, external wires touching the equipment, motor leakage, etc. V. Inadequate film adhesion: insufficient vacuum level, air leakage, low temperature, too thin a film, the workpiece being in contact with other materials, the depth of the recesses on the workpiece exceeding what the film can stretch to, too short a suction time resulting in no stretching of the film, or the workpiece being too close. VI. The surface of the finished part has folds, is not smooth, or the corners are not properly covered: the film was not stretched straight, the quality of the film is poor, the part was not polished properly, too much glue was applied, and the mold plate beneath the part is too low. VII. When it’s not time for suction coating, the film is pulled downward: Is the solenoid valve or manual valve open? VIII. Phenomena related to film failure: too high a temperature, excessive heating time, poor film quality, and lack of heating. Note: When selecting (PVC) film, all technical data must be provided by the manufacturer. A specialized (PVC) adhesive should also be used, with all relevant data available; only by using this information can appropriate settings be made to achieve desired quality and economic benefits. Related content: Thermoplastic molding machines 1. Principle and function of the vacuum pump in blister forming machines 2. Features of fully automatic vacuum blister forming machines, and what advantages do they have 3. What are the common raw materials used for thick-sheet blister forming? What are its characteristics? 4. The principle of thermoplastic molding machines; in what areas can these machines be applied? 5. The five key steps in the operation process of thick-sheet thermoforming machines. Website keywords: acrylic thermoforming machine, price of acrylic thermoforming machines, vacuum thermoforming machine, price of thermoforming machines, thermoforming packaging machine, automatic thermoforming machine