Does the speed of the injection molding machine control the size of the oil return?

Updated on technology 2024-04-21
6 answers
  1. Anonymous users2024-02-08

    Generally, the current of the injection molding machine is between, the shooting table retreats and moves, and the speed is adjusted to 0 99 and then look at the change of the ammeter.

    Injection molding machines are also known as injection molding machines or injection machines. It is the main molding equipment for making thermoplastics or thermosets into plastic products of various shapes using plastic molding molds. It is divided into vertical, horizontal, and all-electric type.

    The injection molding machine heats the plastic and applies high pressure to the molten plastic, causing it to be injected and fill the mold cavity.

    Injection system. The role of the injection system: the injection system is one of the most important components of the injection molding machine, and there are generally three main forms: plunger type, screw type, and screw preplastic plunger injection type.

    At present, the most widely used is the screw type. Its function is that in a cycle of the plastic injection machine, a certain amount of plastic can be heated and plasticized within a specified time, and the molten plastic is injected into the mold cavity through a screw under a certain pressure and speed. At the end of the injection, the melt injected into the mold cavity is kept in shape.

    Composition of the injection system: The injection system consists of a plasticizing device and a power transmission device.

    The plasticizing device of the screw injection molding machine is mainly composed of a feeding device, a barrel, a screw, a glue assembly and a nozzle part. The power transmission device consists of an injection cylinder, an injection seat moving cylinder, and a screw drive (melt motor).

  2. Anonymous users2024-02-07

    Yes. Whether pressurized or returned.

    The speed of the control oil circuit is the speed of the control system.

  3. Anonymous users2024-02-06

    The method of adjusting the speed and slowness of the injection molding machine is to first confirm whether the material is dry, the mold temperature line source balance and the temperature setting of the heating cylinder are correct and can reach the machinable state. (2) Check whether the setting of the opening and closing mold and ejection action and distance is correct. (3) The injection pressure is set at 60% of the maximum value.

    4) Keep the pressure set at 30% of the maximum value. (5) The injection speed is set at 40% of the maximum value. (6) The screw speed is set at about 60 revolutions per minute.

    7) The back pressure is set at about ten kilograms per square centimeter. (8) The loosening is set at about three millimeters. (9) The position of the holding pressure switch is set at 30% of the diameter of the screw.

    10) The metering stroke is set slightly shorter than the calculated value. (11) Crack call is set to have a slightly shorter total shot time and a slightly longer cooldown time.

  4. Anonymous users2024-02-05

    Hello dear! Glad for your question! How to adjust the speed of the injection molding machine to increase the speed of the sensitive ant; The first bridge is dismantled and buried and the power supply is heated [set to 220 degrees Celsius] and starts to adjust the machine parameters when starting the motor motor [stop at an interval of 10 seconds, 3 times in a row, if there is no abnormality, it can be run]. 1.

    Pitch table fast and slow speed pressure, 2Adjust the speed pressure of the ejector pin, 3Adjust the opening and closing speed pressure and position and low pressure protection pressure speed, 4

    Adjust the mold adjustment pressure speed, 5, adjust the clamping high pressure position and clamping pressure. 6.Prepare the material for washing and select the appropriate temperature for the material.

    7. Start washing the machine after the temperature reaches the cold room start prevention time, 8First adjust the pumping pressure speed and extract the glue, 9The pressure speed of the dimmed glue is from slow to fast and large, and the glue is injected little by little.

    10. Adjust the speed of the return material (sol) and the pressure of the punch is from slow to fast, and pay attention to whether the screw rotates and feeds normally when returning the material, until the washing machine is completed. 11.After the mold clamping table, the mold is tested for production, and the beer water outlet is gradually observed after the glue inlet is used.

    12.Pressure, velocity, time, position, holding pressure and back pressure, 13Observe the mold temperature change and set the parameters of the mold temperature machine [water temperature 95° oil temperature 120 to 210°], 14

    Molding quality inspection and signing of samples and production plans to start production.

  5. Anonymous users2024-02-04

    What is the reason for the shrinkage of the injection molding parts of the injection molding machine, and the pressure should be increased and slowed down.

    Dear, hello, I am glad to answer for you, the injection molding machine injection molding parts shrinkage, to increase the pressure speed to sell slow what is the reason, mainly the injection molding parts internal air pressure socks lead uneven, mold closure is not tight, the pressure is too small, plastic flow hall is too large and other reasons will lead to the shrinkage of injection molded parts. In order to improve the shrinkage rate of plastic parts, it is possible to increase the pressure appropriately, increase the molding pressure, reduce the molding temperature, and slow down the molding speed, which is conducive to the complete melting of the plastic and reduces the shrinkage rate of the plastic parts.

  6. Anonymous users2024-02-03

    Summary. Hello dear, happy to answer for you. Shrinkage of injection molded parts refers to the shrinkage of plastic materials in the cooling process due to factors such as thermal expansion and cold contraction during the injection molding process, resulting in the size of the molded parts becoming smaller.

    In order to solve the problem of shrinkage of injection molded parts, it is often necessary to adjust the process parameters of the injection molding machine.

    What is the reason for the shrinkage of the injection molding parts of the injection molding machine, and the pressure should be increased and slowed down.

    Hello relatives and old people, I am happy to answer for you. Shrinkage of injection molded parts refers to the shrinkage of plastic materials in the cooling process due to factors such as thermal expansion and cold contraction in the injection molding process, resulting in the size of molded parts becoming smaller. In order to solve the problem of shrinkage of injection molded parts, it is often necessary to adjust the process parameters of the injection molding machine.

    Increasing the pressure of the injection molding machine can increase the filling degree and compactness of the plastic material, so that the molded parts can be cleared and complete, and uniform. Slowing down the injection molding speed of the injection molding machine can make the plastic material stay in the mold for a longer time, making the molded pure digging part more full and compact, and reducing voids and defects.

    Therefore, increasing the pressure of the injection molding machine and slowing down the injection molding speed at the same time can alleviate the problem of shrinkage of injection molded parts at a certain level, and improve the size and quality of molded parts. However, it is necessary to adjust the appropriate process parameters according to the specific injection materials and mold characteristics to achieve the best injection molding effect.

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