TH65936B - A method for the manufacture of foamed injection molding and its injection devices - Google Patents

Abstract

------ 07/03/2018 ------ (OCR) page 1 of number 1 page invention Plasticizer process (plasticizing process) where the fused resin was plasticized. And melted in gas, the foaming was delivered to the front end of the heating barrel 20 by means of a screw 21 Rotating in the heating barrel 20 and screw 21. It retreats when the resin is fused. Combined in the front end of the heating cylinder 20; The transmission process at which the screw 21 is moved forward by rotation. And transmitted through fused resin that was incorporated in the front end of Canister 20 heat from plasticizer unit 2 to injection unit 3 and injection process at The fused resin was injected from an injection unit 3, was made and repeated to produce a molded product. Foam injection By this method, injection molding of an injection molded product That makes foam can be dissolved in the foaming gas like inert gas. Plasticization of the resin object Raw and saturated resin fused plasticizer with gas, foaming in erection cycle Images can be updated. While the productivity can be improved ------------ plasticizer process (plasticizing process) where the fused resin was plasticized The foaming was delivered to the front end of the heated barrel 20 by means of screw 21 rotating in the heating barrel 20 and screw 21 retreating accordingly. Combined in the front end of the heating cylinder 20; Transmission process, where screw 21 is moved forward by rotation And transmitted through fused resin that was incorporated in the front end of Canister 20 heat from plasticizer unit 2 to injection unit 3 and injection process at In which the fused resin was injected from the injection unit 3 was made and repeated to produce the molded product. Foam injection By this method Injection molding of an injection molded product That makes foam can be dissolved in the foaming gas like inert gas. Plasticizer of raw resin And impregnation of fused resin that was plasticized by gas, foaming in the molding cycle. Can improve While productivity can be improved

Claims (3)

Disclaimer (all) which will not appear on the advertisement page. : ------ 07/03/2018 ------ (OCR) Page 2 of the number 3 front after the screw moves forward in the heater cylinder to the previously set position. Gas injection, initial foaming. 6. A method for manufacturing a product that is molded by injection that can be foamed according to Any claim, the clause 1 to 3, which is left after the completion of the transmission process, and After the passage of a predetermined period of time from the initiation of the plastisizing process, gas injection, foam making, the improvise. 7. A method for the production of injection-molded products that can As foam Any claim, the clause 1 to 3, which is left after the completion of the transmission process, and After the screw travels forward inside the barrel, heat is obtained from the process start. The plasticization reaches the predetermined position. Gas injection. Foam making starts. 8. A method for manufacturing a product that is molded by injection that can be foam based. Any Clause 1 to Clause 7, that the injection of gas, the foaming is stopped before completion. End of the plasticization process 9. Method for manufacturing a product that has been molded by qiq that can be foamed according to Any Clause 1 to 8 Clause 8 that the screw is provided with a check valve. The molten resin was sent to the front end of the heating cylinder by turning the screw and then passed through a check valve. Dissolved in gas. Foam making 1 0. Injection machine set. That includes the plasticizer unit that the plasticizer resin raw material And an injection unit that injects the fused resin that has been plasticized The plasticizer unit was also provided. Heating cylinder with gas injection valve, foaming and screw provided inside the heating barrel, and the rotation and forward and reverse motion of the screw are controlled. Plasticizer by means of screw inside the heating barrel of The plasticizer unit and the foaming gas were injected from the injection valve. The foamed gas was dissolved in the resinous resin. The melted plasticizer and after the screw retreat to the fixed position, like the fused resin at the end. The front of the barrel is heated by a rotating screw. The screw moves forward by turning to make the melted rechin be integrated into the side. The front end of the heating cylinder that is passed to the injection unit 1 1. Set the injection machine according to the claim that 10 valve seat, gas injection, foaming is provided on the The heating cylinder was allowed to be replaced, so the injection of the foaming gas was made of ------------ Revised 3/7/2017 1. Methods for producing the products that are It is molded by injection that can be foam (foamable injection molded product) using a set of injection machines that are assembled with a plastic making unit. Conscious size at plastic size, resin, raw material And an injection unit in which the fused resin was injected with the plasticizer, and the plasticizer unit was provided with a heating cylinder with gas injection valve, foaming and screw. Holes are arranged inside the heating tube. How to assemble with Plasticizer process Where raw material resin is plasticized by means of arranged screw To have the inside of the heating cylinder of the plasticizer unit The gas is made foam which is injected from the injection valve. The foaming gas is dissolved in the fused resin that has been plastisized - and the screw retires as the fused resin. Combined in the front end of the barrel, heated by a rotating screw and a transmission process. Where the screw that has been retracted to the predetermined position is Move forward while turning And the fused resin is incorporated into the front end of the barrel. Let the heat be passed to the injection unit where, when the transmission process is complete The plasticizer process starts again without Stop the screw rotation and the injection process. Where the fused resin is injected from the injection unit is handled and when the injection process is completed The plasticizer process was completed and the transmission process started again. -------------------------------------------------- -------------------------------------------------- - (Old) 1. A method for a foamable injection molded product using a set of injection molding machines assembled with a plastic molding unit. Conscious size plastic resin raw materials And the injection unit that injected the fused resin that was plasticized and the plasticizer unit was provided with a heating cylinder with gas injection valve, foaming and screw. Holes are arranged inside the heating tube. How to assemble with Plasticizer process Where the raw resin is plasticized by means of screw provided Inside the cylinder to have the heat of the plasticizer unit. Plastic fused resin Dissolved in the foamed gas injected from the foam gas injection valve. And screw back off when the resin Are fused together in the front end of the barrel heated by a rotating screw and a transmission process Where the screw that was retired to the predetermined position was Move forward while turning And the fused resin is incorporated into the front end of the barrel. Let the heat be passed to the injection unit where, when the transmission process is complete The plasticizer process starts again without stopping. Screw rotation and injection process Where the fused resin is injected from the injection unit is handled and when the injection process is completed The plasticizer process is finished. And transmission process Starting again 2. A method for manufacturing an injection-molded product that can be foamed according to claim 1, where the latter allows the screw to move forward as it rotates. The screw was kept turning While the resin The melt is then passed to the injection unit. 3. Method for producing a tear-molded product that can be foamed according to claim 1 or 2, where the foaming gas is injected into the resin. Melted, which has been plasticized by Method of rotated screw 4. A method for manufacturing an injection molded product that can be foamed according to Holds any one of claims 1 to 3, which is simultaneously initiated by the start of the transmission process or after the elapsed period of a predetermined period from the start of Transmission process Gas injection, foaming starting 5. Methods for manufacturing a product that is molded by injection that can be foam as required. Holds one of the rights 1 to 3, where after the start of the transmission process and after the forward screw in the heat sink reaches the designated position for the next time. Gas injection, foaming starting 6. A method for producing a product that has been molded by injection that can be foam in accordance with the clause. Holds any one of claims 1 to 3, where after the completion of the transmission and after The passage of a predetermined period of time from the start of the plasticizer process. Gas injection, foaming starting 7. Methods for the production of injection-molded products that can be foamed according to clause. Holds any one of claims 1 to 3, where after the completion of the transmission and after The screw travels forward inside the barrel to heat the start of the plasticizer process. Arrived at the position that was set before Gas injection, foaming start. 8. A method for producing a product that is molded by injection that can be foamed in accordance with the clause. Holds any one of claims 1 to 7, where the injection of gas, foam making stops before its completion. The end of the plasticization process 9. Methods for the production of injection-molded products that can be foamed according to Holds any of the rights 1 to 8 where the screw is provided with a check valve. And the fused resin, which was sent to the front end of the barrel, was heated by a screw rotation, and was passed through a check valve. Dissolved in gas. Foam making 1 0. Injection machine set. Including plasticizer unit that plasticizer resin raw material And an injection unit that injects fused resin that has been plasticized Where the plasticizer unit is also provided The heating cylinder with gas injection valve, foaming and screw are provided inside the heating barrel, and the forward rotation and screw movement are controlled, so the raw material resin is Lasisize by means of a screw inside the heating barrel of the unit. Plasticizer and resin fused and plasticizer is melted in gas. The gas injection, foaming valve and back screw retreat to the fixed position as the resin fused at the end. The face of the barrel is heated by a rotating screw. The screw moves forward by turning to make the fused resin incorporated into the tip. The front of the heating cylinder is passed to the injection unit 1. 1. Set of injection machine according to claim 10, where the gas injection foaming valve is provided on The heating cylinder is allowed to be replaced, so the injection of the foaming gas is made from The foaming gas injection valve is provided on the rear end relative to the front end of the screw 1. 2. Set of injection machines according to claim 10 or 11, where the number of more than one valve Gas injection, foaming is provided with 1 3. The injection machine set according to any of the claims 10 through 12 at which the check valve Is positioned at a position behind the gas injection foaming valve And opened in the direction where the resin was Forged is delivered to the front end of the heating cylinder. And not opening in the opposite direction to the top was provided in the screw.