Glue injection equipment and process for glue solution circulating
A technology of glue injection and glue solution, which is applied to the glue injection process and equipment field of glue solution circulation, can solve the problems of waste of resin glue solution raw materials, difficult cleaning of equipment, environmental pollution, etc., so as to save resources, reduce waste discharge, The effect of reducing production costs
Inactive Publication Date: 2020-06-16
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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Problems solved by technology
[0008] Aiming at the high cost of the existing injection system equipment in this field, it is not suitable for the molding of small batch parts, a large amount of resin glue liquid raw materials are wasted when the air bubbles flow out during the injection molding, the environment is polluted, and the equipment is difficult to clean. The present invention provides A glue injection equipment with glue circulation, which realizes the recycling of raw materials, saves resources, reduces waste emissions, and effectively reduces production costs
Method used
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Embodiment 1
[0044] Such as figure 1 The shown glue injection equipment for glue circulation includes a glue injection barrel 1 with a support 3 , a glue outlet barrel 18 , a pressure tank 21 , a vacuum pump 14 and a mold 17 .
[0045] Glue injection barrel 1 is cylindrical, made of glass fiber reinforced plastics, the outer wall is coated with a heating jacket 27 connected to the temperature controller, the inner cavity is rounded truncated, and the bottom of the barrel is spherical. The temperature controller can control and display the heating temperature.
[0046] The glue injection barrel 1 has a bow clip 4 and a barrel cover 2 . The bow clip 4 can clamp the barrel cover 2 and the barrel body of the glue injection barrel 1 to realize the sealing of the glue injection barrel 2 .
[0047] The barrel cover 2 is provided with an annular card slot, and a sealing strip 5 is embedded in the card slot to realize the sealing of the glue injection barrel 2 . The center of the barrel cover 2 ...
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The invention discloses glue injection equipment for glue solution circulating. The glue injection equipment comprises a glue injection barrel with a support, a glue outlet barrel, a pressure tank, avacuum pump and a mold. The glue injection barrel is provided with a sealing barrel cover. A discharging opening, a gas inlet and an extraction opening are arranged on the sealing tank cover. A glue outlet pipe inserted into the bottom is arranged in the discharging opening. The pressure tank is connected with the gas inlet. The vacuum pump is connected with the extraction opening. The bottom of the glue injection barrel is connected with a feeding pipe to communicate into the glue outlet barrel. The mold is provided with a mold glue inlet pipe and a mold glue outlet pipe, the mold glue inletpipe is connected with the glue outlet pipe, and the other end of the mold glue outlet pipe is inserted into the glue outlet barrel. The number of special components of the glue injection equipment issmall, the components are common parts, universality is high, damage is not prone to happening, replacement is convenient, and the price is low. The invention further discloses a glue injection process for glue solution circulating used according to the above glue injection equipment. The glue injection process comprises the steps of vacuum defoamation, mold filling and resin glue solution backflow. Recycling to raw materials is achieved, resources are saved, waste discharge is reduced, and production cost is effectively reduced.
Description
technical field [0001] The invention relates to the field of glue injection molding technology, in particular to a glue injection technology and equipment for glue circulation. Background technique [0002] Nowadays, the RTM (resin transfer molding) injection molding method and its injection system have been widely used, but these injection system equipment are usually complex in structure and high in cost. At present, imported equipment is generally more than 700,000 yuan, and domestic equipment is also more than 200,000 yuan. In addition, the complex structure of the injection system equipment makes cleaning difficult; the pipeline is too long, resulting in a high waste rate of materials; the valves in the pipeline are not easy to clean and replace, resulting in high cost of use. [0003] In the molding process of RTM products of composite materials, due to the characteristics of the process, a large amount of resin glue will flow out during the process of degassing, and ...
Claims
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IPC IPC(8): B29C70/48B29C70/54
CPCB29C70/48B29C70/54
Inventor 王燚林刘东祝颖丹杨玉
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI