200 Ton Force Menstrual Cup Injection Molding Machine LSR For Medical Instruments

200 Ton Force Menstrual Cup Injection Molding Machine LSR For Medical Instruments

Principles of LSR Injection Machine:

1. Before using the liquid silicone injection machine: In order to avoid accidents in the production steps, before using the liquid silicone machine, first make some essential inspections on the injection machine. Check if there is water or oil in the electrical control box. If the hairline appliance absorbs moisture, it does not need to be turned on. It should be dried and then turned on. Before using, check if the supply current meets the requirements. Then check its emergency stop button, whether the front and rear safety doors are normally closed, and check if the rotation direction of the motor and the oil pump are the same. Before applying the liquid silicone injection molding machine, check that each cooling pipe is smooth, and that cooling water is supplied to the oil cooler and the cooling water jacket at the end of the barrel.
2. Liquid silicone injection machine application: to educate the company staff in strict accordance with the application of the standard use of liquid silicone machine to prevent industrial accidents or machine damage caused by human factors.
3. Liquid silicone injection machine after the use of maintenance: in order to make the injection machine to pass the qualified silicone products and maintain a long service life. The syringe should be serviced after use.

Brief Introduction of Liquid Silicone Injection Machine:

1. The design principle of the liquid silicone injection molding machine is similar to that of the injection needle for dripping. It relies on the thrust of the screw (or plunger) to inject the plastic which has been plasticized into the molten state (ie, the viscous flow state). In the cavity, the process steps of the product are obtained after dry solidification.
2. Liquid silicone injection molding is a cyclic step, and each period mainly includes: quantitative feeding - melt plasticizing - applying pressure injection - filling mold cooling - mold extraction. After removing the plastic parts, close the mold again and do the next cycle.
3. Liquid silicone injection molding machine use project: Injection molding machine operation items include control keyboard operation, electrical control system use and hydraulic system use. Each of them performs injection process, feeding action, injection pressure, injection speed, selection of ejection mode, monitoring of each temperature of the barrel, adjustment of injection pressure and back pressure.
4. Generally, the molding process of the screw injection molding machine is: firstly adding granular or powdered plastic into the barrel, and turning the plastic into a molten state according to the rotation of the screw and the heating of the outer wall of the barrel, and then the machine performs the clamping and injection seat. Move forward, make the nozzle close to the gate of the mold, then pass the pressure oil to the injection cylinder, push the screw forward, and then introduce the melt into the lower temperature mold with high pressure and faster speed. Inside, after a certain period of time and pressure maintenance (called pressure retention), cooling, so that it is solidified and molded, the mold can be removed. The significance of holding pressure is to avoid the backflow of the melt in the cavity and to replenish the cavity. Materials, and they ensure that the product has a certain density and dimensional tolerance). The main criteria for injection molding are plasticization, injection and molding. Plasticization is a prerequisite for achieving and ensuring the quality of the shaped product, and to meet the molding requirements, the injection must ensure sufficient pressure and speed. At the same time, because the injection pressure is high, relatively high pressure is generated in the cavity (the average pressure in the cavity is usually between 20 and 45 MPa), so it is necessary to have a sufficient clamping force. Ultimately, the injection device and the clamping device are the core components of the injection molding machine.
5. There are three aspects to the review of plastic products. The first is the quality of the exterior, including integrity, color, gloss, etc.; the second is the accuracy between the specifications and the relative parts; the third is the physical properties and chemistry associated with the use. Performance, electrical performance, etc. This quality requirement is different depending on the application site of the product, and the scale is not the same. The shortcomings of the product mainly depend on the design of the mold, the manufacturing precision and the degree of wear. In reality, however, technicians in plastics processing plants often annoy the difficult situation in which the process is used to compensate for the problems caused by the shortcomings of the mold.
6. The adjustment of the process in the production process of liquid silicone injection molding machine is the necessary way to improve the quality and output of the product. Because the injection cycle itself is very short, if the process conditions are not well grasped, the waste will continue. It is better to change only one condition at a time when adjusting the process. If you observe a few times, if the pressure, temperature and time are all adjusted together, it will easily lead to confusion and misunderstanding. If you have problems, you can't remember why. There are many countermeasures and methods for adjusting the process. For example, there are more than a dozen possible treatments for dealing with insufficient product injections. It is necessary to select one or two major solutions to solve the problem and solve the problem. In addition, you should also pay attention to the dialectical relationship in the solution. For example, the product has a dent, sometimes it is necessary to raise the temperature of the material, sometimes to reduce the temperature of the material; sometimes it is necessary to increase the amount of material, sometimes to reduce the amount of material. It is necessary to recognize the feasibility of solving the problem of reverse measures.

Main Technical Parameters: