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When the injection mold in injection molding plastic parts of security protection
by：CSSSLD
2021-02-03
Injection mold in injection molding plastic parts with safety protection
in order to safely in the production of high quality and size of qualified injection molding plastic parts, injection mould in processing and storage, and require special attention during the production. When die closed to start the next cycle, stranded in the mould of plastic parts will be damaged and the use of such damage might further endanger the mould. Often, therefore, take measures to ensure that all reset after demoulding and yue mould parts, plastic are allowed to die closed, for single cavity mould with a used to detect whether injection molding plastic parts falling photocell is enough. For multi-cavity mold, cannot use this method. However, top the board reset insurance device need to change mould structure. If is located in the dynamic model of core demoulding parts or the back of the slider and the push board reset security insurance device is used to check whether stripping parts returned to the forming of the initial position. If this is not the case, then it can disrupt the molding cycle. The safety insurance device needs a is located in the dynamic model on the fixed plate and a switch in the mold of a receiver, when push board back to the original position, the switch on the mold movement. Only when molding application template recovery device, namely in deed is out, the clamping device closed, under the action of spring force pushing plate back in molding position, push board reset insurance device therefore play a role. Control system, at that time, a 'die' command. When mould for long demoulding trip, push board by the spring return is usually not very reliable. Therefore, using a demoulding reset mechanism to satisfy the function.
injection mould when choosing materials should have what performance
plastic injection molding materials by high pressure refers to the heat melt into the cavity, after cooling solidification, get molded products. The method is suitable for mass production of complex shape parts, is one of the important processing method. Injection mold injection molding process can be roughly divided into six stages moulding, injection, pressure maintaining and cooling, open mold products and repeated the process, can produce the products continuously. Injection molding machine can be divided into clamping device and injection device. Clamping device main function is to realize the mold opening and closing and ejection products. Clamping device can be divided into the connecting rod type and direct use of hydraulic clamping pressure type straight. Injection mould when choosing materials should have what performance:
injection mould durable degree and its materials relationship is great, in the plastic raw material, plastic performance factors play a very important role, so the main consideration of this kind of raw material choice. It shall meet the requirements of the use of plastic parts, the main or even the design of injection mold also controlled by the material internal performance, such as mold design must consider the mobility of the molten plastic molding shrinkage ratio, temperature, etc.
injection mold surface treatment technology is through the surface coating, surface modification, or composite processing technology, mould surface morphology, chemical composition, structure and stress state, in order to obtain the required surface performance of the system engineering. Although the performance of new processing technology to improve mould surface constantly emerging, but mainly in the mould manufacturing is widely applied nitriding and carburizing and hardening film deposition. Injection mould design of general control: 1, first of all to the mould structure, material, hardness and precision of waiting for the various users to fully understand the technical requirements, including forming shrinkage rate of plastic materials is correct, dimensions of the 3 d modelling is complete, reasonable processing analysis. 2, for the injection molding product shrinkage, flow mark, dial the die Angle, weld line and crack appearance affects different parts of the full consideration. 3, without obstruction of plastic products under the premise of function and design forms, to simplify mould processing methods as much as possible. 4, parting surface choose whether appropriate, in appearance and processing, mould forming a deburring must make a careful choice. 5, ejector mode is appropriate, use the push rod, stripper plate and ejector sleeve way or the other way, such as the location of the push rod and the stripper plate is appropriate. 6, the side core-pulling mechanism of use whether appropriate, movements flexible and reliable, and should have no card lag phenomenon. 7, easy temperature control with what kind of method is more suitable for plastic products, to oil, charged with warm water, cooling fluid temperature control issue with what kind of structure of circulation, such as coolant holes the size of the number, location such as appropriateness. 8, gate form, the size of the feeding and the feeding port, gate location and size of appropriateness. 9, various modules and mold core heat treatment deformation effects and selection of standard parts. 10, injection molding machines, injection volume, injection pressure and clamping force is fully, nozzle R, gate set aperture matches such as appropriate.
in order to safely in the production of high quality and size of qualified injection molding plastic parts, injection mould in processing and storage, and require special attention during the production. When die closed to start the next cycle, stranded in the mould of plastic parts will be damaged and the use of such damage might further endanger the mould. Often, therefore, take measures to ensure that all reset after demoulding and yue mould parts, plastic are allowed to die closed, for single cavity mould with a used to detect whether injection molding plastic parts falling photocell is enough. For multi-cavity mold, cannot use this method. However, top the board reset insurance device need to change mould structure. If is located in the dynamic model of core demoulding parts or the back of the slider and the push board reset security insurance device is used to check whether stripping parts returned to the forming of the initial position. If this is not the case, then it can disrupt the molding cycle. The safety insurance device needs a is located in the dynamic model on the fixed plate and a switch in the mold of a receiver, when push board back to the original position, the switch on the mold movement. Only when molding application template recovery device, namely in deed is out, the clamping device closed, under the action of spring force pushing plate back in molding position, push board reset insurance device therefore play a role. Control system, at that time, a 'die' command. When mould for long demoulding trip, push board by the spring return is usually not very reliable. Therefore, using a demoulding reset mechanism to satisfy the function.
injection mould when choosing materials should have what performance
plastic injection molding materials by high pressure refers to the heat melt into the cavity, after cooling solidification, get molded products. The method is suitable for mass production of complex shape parts, is one of the important processing method. Injection mold injection molding process can be roughly divided into six stages moulding, injection, pressure maintaining and cooling, open mold products and repeated the process, can produce the products continuously. Injection molding machine can be divided into clamping device and injection device. Clamping device main function is to realize the mold opening and closing and ejection products. Clamping device can be divided into the connecting rod type and direct use of hydraulic clamping pressure type straight. Injection mould when choosing materials should have what performance:
injection mould durable degree and its materials relationship is great, in the plastic raw material, plastic performance factors play a very important role, so the main consideration of this kind of raw material choice. It shall meet the requirements of the use of plastic parts, the main or even the design of injection mold also controlled by the material internal performance, such as mold design must consider the mobility of the molten plastic molding shrinkage ratio, temperature, etc.
injection mold surface treatment technology is through the surface coating, surface modification, or composite processing technology, mould surface morphology, chemical composition, structure and stress state, in order to obtain the required surface performance of the system engineering. Although the performance of new processing technology to improve mould surface constantly emerging, but mainly in the mould manufacturing is widely applied nitriding and carburizing and hardening film deposition. Injection mould design of general control: 1, first of all to the mould structure, material, hardness and precision of waiting for the various users to fully understand the technical requirements, including forming shrinkage rate of plastic materials is correct, dimensions of the 3 d modelling is complete, reasonable processing analysis. 2, for the injection molding product shrinkage, flow mark, dial the die Angle, weld line and crack appearance affects different parts of the full consideration. 3, without obstruction of plastic products under the premise of function and design forms, to simplify mould processing methods as much as possible. 4, parting surface choose whether appropriate, in appearance and processing, mould forming a deburring must make a careful choice. 5, ejector mode is appropriate, use the push rod, stripper plate and ejector sleeve way or the other way, such as the location of the push rod and the stripper plate is appropriate. 6, the side core-pulling mechanism of use whether appropriate, movements flexible and reliable, and should have no card lag phenomenon. 7, easy temperature control with what kind of method is more suitable for plastic products, to oil, charged with warm water, cooling fluid temperature control issue with what kind of structure of circulation, such as coolant holes the size of the number, location such as appropriateness. 8, gate form, the size of the feeding and the feeding port, gate location and size of appropriateness. 9, various modules and mold core heat treatment deformation effects and selection of standard parts. 10, injection molding machines, injection volume, injection pressure and clamping force is fully, nozzle R, gate set aperture matches such as appropriate.
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