Co-injection method for molding machines
A molding machine and co-injection technology, applied in the co-injection field of injection molding machines, can solve the problems of inaccurate finished products, deviation, mixing ratio deviation, etc.
Active Publication Date: 2017-07-28
ENGEL MACHINERY SHANGHAI
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- Application Information
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Problems solved by technology
As a result, deviations of the actual mixing ratio from the set mixing ratio occur, which can precisely lead to inaccurate and thus undesired finished products
Temperature changes in the injection unit can also lead to deviations in the mixing ratio
Method used
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Embodiment Construction
[0028] exist figure 1 A molding machine 1 is schematically shown in . As basic components, this molding machine 1 has two injection units 5 and 6 , a mixing device 4 , a molding tool 2 and an operating unit 17 with control or regulation unit 3 . The injection units 5 and 6 each have an injection cylinder 8 and an injection piston 9 (injection screw) movable in the injection cylinder. The injection pistons 9 are each driven in translation by a drive device 12 . If the injection pistons 9 are also designed as injection screws, these injection screws can also be driven in rotation by the drive 12 . Each injection cylinder 8 is equipped with a filling funnel 13, raw material K 1 or K 2 Through this filling funnel, it is sent into the mold cavity between the injection cylinder 8 and the injection piston 9 . By the rotation of the injection piston 9 configured as an injection screw, the raw material K fed in granular form 1 and K 2 Melted in injection units 5 and 6. In the f...
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The invention relates to a co-injection method used for a forming machine. An injection process in which raw materials (K1 and K2) are controlled or adjusted by a control or adjusting unit (3) into a forming die (2) is characterized in that the injection process is controlled or adjusted according to a calculated pressure (P) and / or a calculated temperature (T) of the raw materials in a forming machine. The invention also relates to a forming machine used for carrying out the above co-injection method. The forming machine comprises a mixing device (4), two injection sets (5 and 6) used for injecting raw materials into a forming die through the mixing device, and a control or adjusting unit. Movement of each injection set can be controlled or adjusted by the control or adjusting unit. The forming machine is characterized in that at least a calculation device used for calculating the pressure and / or temperature of the raw materials in the forming machine is arranged, and movement of the injection sets can be changed by the control or adjusting unit according to the calculated pressure and / or the calculated temperature.
Description
technical field [0001] The invention relates to a co-injection method for a molding machine, in particular an injection molding machine, in which the injection process of the raw material into the molding tool is controlled or regulated by a control or regulation unit. The invention also relates to a molding machine, in particular for carrying out such a co-injection method, with a mixing device, two injection units for injecting the raw material through the mixing device into a molding die and a control or regulation unit, wherein the movement of the injection unit can be controlled or regulated by the control or regulation unit. Background technique [0002] In the injection molding industry, the co-injection method is mainly used to produce molded or injected parts from multiple components. In this case, the individual raw materials, mostly different raw materials from one another, are injected into the cavities of the molding tool or injection tool. [0003] An example...
Claims
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IPC IPC(8): B29C45/77B29C45/18B29C45/16
Inventor H·施泰因帕泽H·蔡德尔霍费尔
Owner ENGEL MACHINERY SHANGHAI