Bubble eliminating device for epoxy resin glue processing

Abstract

The utility model relates to a bubble eliminating device, in particular to a bubble eliminating device for epoxy resin glue processing. The utility model provides a bubble eliminating device for processing epoxy resin glue, which comprises a support frame, a defoaming cylinder, a feeding valve, a discharging valve, a vacuum valve and the like, the left side of the upper part of the defoaming cylinder is provided with an extraction opening, the right side of the upper part of the defoaming cylinder is provided with an air inlet, the left side of the middle upper part of the defoaming cylinder is provided with a feed port, the bottom of the defoaming cylinder is provided with a discharge port, and the feed port of the defoaming cylinder is provided with a feed valve; according to the defoaming device, the vacuum pump is used for exhausting air in the defoaming barrel to form a negative pressure environment, bubbles of epoxy resin in the defoaming barrel can expand and become large, and the bubbles can rise and float out of the surface of the epoxy resin, so that the defoaming effect is achieved.

Description

Technical Field

[0001] The utility model relates to a bubble eliminating device, in particular to a bubble eliminating device for epoxy resin glue processing. Background Art

[0002] Epoxy resin is a high molecular polymer with good physical and chemical properties, such as high bonding strength, low shrinkage, good dielectric properties, hardness and flexibility. Therefore, it is often used in coatings, adhesives, electronics, construction, automobile manufacturing and sporting goods.

[0003] In the production process of epoxy resin, bubbles are often generated due to various reasons. In order to ensure the quality of epoxy resin, it is necessary to remove the bubbles. The general method for removing bubbles from epoxy resin is to stir it slowly, or add a defoaming agent and wait for the bubbles to disappear. The stirring method is to stir until the bubbles rise to the surface of the epoxy resin and burst. However, this method of removing bubbles has high requirements for the control of the stirring speed. If the stirring speed is too fast, the number of bubbles in the epoxy resin will increase. If the stirring speed is too slow, the effect will be poor and it will take a long time. The method of adding a defoaming agent will affect the quality of the final epoxy resin product because the defoaming agent remains in the epoxy resin. Utility Model Content

[0004] In order to overcome the shortcomings of low efficiency and poor effect of the existing defoaming methods, the technical problem of the utility model is to provide a bubble elimination device for epoxy resin glue processing.

[0005] The technical solution is: a bubble elimination device for epoxy resin glue processing, including a support frame, a defoaming cylinder, a feed valve, a discharge valve, a vacuum valve, a vacuum pump, an exhaust pipe, an air pressure detection gauge, a control box, a heating component and a stirring component. A defoaming cylinder is arranged at the middle and upper part of the support frame, a vacuum port is opened on one side of the upper part of the defoaming cylinder, an air inlet is opened on the other side of the upper part, a feed port is opened on the left side of the middle and upper part, and a discharge port is opened on the bottom. A feed valve is provided at the feed port of the defoaming cylinder, a discharge valve is provided at the discharge port, and a vacuum valve is provided at the air inlet. A vacuum pump is fixedly connected to the front side of the support frame, an exhaust pipe is connected between the vacuum pump and the exhaust port of the defoaming cylinder, an air pressure detection gauge is fixedly connected to the top of the defoaming cylinder, a control box is fixedly connected to the front side of the support frame, the vacuum pump and the air pressure detection gauge are electrically connected to the control box, a heating component is provided on the right side of the support frame, and a stirring component is provided at the middle and upper part of the inner side of the defoaming cylinder.

[0006] More preferably, the heating assembly includes a hot oil tank, a first cover, a second cover, a heating module, a circulating heat-conducting oil pipe and a pump body. The hot oil tank is fixedly connected to the right side of the support frame, an oil inlet is opened at the top of the hot oil tank, an oil outlet is opened on the right side of the bottom of the hot oil tank, a first cover is provided at the oil inlet of the hot oil tank, a second cover is provided at the oil outlet of the hot oil tank, a heating module is provided at the lower part of the hot oil tank, a circulating heat-conducting oil pipe is provided at the middle part of the defoaming cylinder, the head and tail of the circulating heat-conducting oil pipe are inserted through the defoaming cylinder from the right side and connected to the bottom of the hot oil tank, a pump body is provided at the head of the circulating heat-conducting oil pipe, and the heat-conducting oil in the hot oil tank can flow from the head to the tail of the circulating heat-conducting oil pipe back to the hot oil tank through the action of the pump body, and the heating module and the pump body are electrically connected to the control box.

[0007] More preferably, the stirring assembly includes a slow motor, a stirring rod, a first scraper and a second scraper. The slow motor is fixedly connected to the top of the defoaming cylinder, the output shaft of the slow motor is inserted into the defoaming cylinder, the bottom of the slow motor output shaft is connected to the stirring rod, the upper part of the stirring rod is fixedly connected to the first scraper, the lower part of the stirring rod is fixedly connected to the second scraper, and the slow motor is electrically connected to the control box.

[0008] More preferably, a first filter screen and a second filter screen are further included, wherein the first filter screen is provided at the air inlet of the vacuum valve, and the second filter screen is provided at the air outlet of the defoaming cylinder.

[0009] More preferably, an anti-slip pad is provided at the bottom of the support frame.

[0010] More preferably, the stirring rods are arranged in a tripod shape in the defoaming cylinder.

[0011] Compared with the prior art, the utility model has the following advantages: 1. The utility model uses a vacuum pump to evacuate the inside of the defoaming cylinder to form a negative pressure environment, and the bubbles in the epoxy resin in the defoaming cylinder will expand and become larger, and the bubbles will rise quickly and float to the surface of the epoxy resin, thereby achieving a defoaming effect.

[0012] 2. The utility model reduces the viscosity of the epoxy resin in the defoaming cylinder by constant temperature heating of the heating component, enhances the fluidity of the epoxy resin in the defoaming cylinder by slow stirring of the stirring component, and assists the vacuum pump in the defoaming operation of the epoxy resin in the defoaming cylinder, thereby improving the defoaming efficiency and enhancing the defoaming effect.

[0013] 3. The utility model provides a first filter at the air inlet of the vacuum valve to prevent the epoxy resin from being sucked into the vacuum pump. A second filter is provided at the air outlet of the defoaming cylinder to prevent dust from entering the defoaming cylinder and contaminating the epoxy resin, thereby ensuring the normal defoaming operation of the equipment.

[0014] 4. The utility model can ensure the stability of the equipment when the defoaming operation is performed by arranging an anti-skid pad at the bottom of the support frame, thereby ensuring the normal defoaming operation of the equipment.

[0015] 5. The stirring rod of the utility model is arranged in a tripod shape, which can effectively increase the contact area between the circulating heat transfer oil pipe and the epoxy resin in the defoaming cylinder, and can improve the balanced heating effect of the heating component on the epoxy resin in the defoaming cylinder, thereby better assisting defoaming and improving defoaming efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the support frame, defoaming cylinder and hot oil tank of the utility model.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the stirring rod, the first scraper and the circulating heat-conducting oil pipe of the utility model.

[0019] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the slow-speed motor, stirring rod and filter screen of the utility model.

[0020] The markings of the components in the accompanying drawings are as follows: 1. Support frame, 2. Defoaming cylinder, 3. Feed valve, 4. Discharge valve, 5. Vacuum valve, 6. Vacuum pump, 7. Exhaust pipe, 8. Air pressure detection gauge, 9. Hot oil tank, 901. First cover, 902. Second cover, 10. Heating module, 11. Circulating heat transfer oil pipe, 12. Pump body, 13. Control box, 14. Slow motor, 15. Stirring rod, 16. First scraper, 17. Second scraper, 18. First filter, 19. Second filter. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment: A bubble elimination device for epoxy resin glue processing, such as Figure 1-Figure 4As shown, it includes a support frame 1, a defoaming cylinder 2, a feed valve 3, a discharge valve 4, a vacuum valve 5, a vacuum pump 6, an exhaust pipe 7, an air pressure detection meter 8, a control box 13, a heating component and a stirring component. The bottom of the support frame 1 is provided with an anti-slip pad, the middle and upper part of the support frame 1 is provided with a defoaming cylinder 2, the upper left part of the defoaming cylinder 2 is provided with an exhaust port, the upper right part of the defoaming cylinder 2 is provided with an air inlet, the air inlet of the defoaming cylinder 2 is provided with a vacuum valve, the upper left part of the defoaming cylinder 2 is provided with a feed port, and the feed port of the defoaming cylinder 2 is provided with a A feed valve 3 is provided, a discharge port is provided at the bottom of the defoaming cylinder 2, a discharge valve 4 is provided at the discharge port of the defoaming cylinder 2, a vacuum pump 6 is bolted to the front side of the support frame 1, a suction pipe 7 is connected between the vacuum pump 6 and the suction port of the defoaming cylinder 2, an air pressure detection gauge 8 is provided on the front side of the top of the defoaming cylinder 2, a control box 13 is fixedly connected to the right front side of the support frame 1 by means of bolts, the vacuum pump 6 and the air pressure detection gauge 8 are electrically connected to the control box 13, a heating assembly is provided on the right side of the support frame 1, and a stirring assembly is provided on the middle and upper part of the inner side of the defoaming cylinder 2.

[0023] like Figure 1-Figure 4 As shown, the heating assembly includes a hot oil tank 9, a first cover 901, a second cover 902, a heating module 10, a circulating heat-conducting oil pipe 11 and a pump body 12. The hot oil tank 9 is fixedly connected to the right side of the support frame 1. An oil inlet is provided at the top of the hot oil tank 9, and an oil outlet is provided at the right side of the bottom of the hot oil tank 9. The first cover 901 is threadedly provided at the oil inlet of the hot oil tank 9, and the second cover 902 is threadedly provided at the oil outlet of the hot oil tank 9. A heating module 10 is provided at the lower part of the hot oil tank 9, and a circulating heat-conducting oil pipe 11 is provided in the middle part of the defoaming cylinder 2. The head and tail of the circulating heat-conducting oil pipe 11 are inserted through the defoaming cylinder 2 from the right side and connected to the bottom of the hot oil tank 9. A pump body 12 is provided at the head of the circulating heat-conducting oil pipe 11. The heat-conducting oil in the hot oil tank 9 can flow from the head to the tail of the circulating heat-conducting oil pipe 11 back to the hot oil tank 9 through the action of the pump body 12. The heating module 10 and the pump body 12 are both electrically connected to the control box 13.

[0024] like Figure 1-Figure 4 As shown, the stirring assembly includes a slow motor 14, a stirring rod 15, a first scraper 16 and a second scraper 17. The top of the defoaming cylinder 2 is connected to the slow motor 14 by bolts, the output shaft of the slow motor 14 is inserted into the defoaming cylinder 2, and the bottom of the output shaft of the slow motor 14 is connected to the stirring rod 15. The stirring rod 15 is arranged in a tripod shape in the defoaming cylinder 2 to increase the contact area between the stirring rod 15 and the epoxy resin. The first scraper 16 is fixedly connected to the upper part of the stirring rod 15, and the second scraper 17 is fixedly connected to the lower part of the stirring rod 15. The slow motor 14 is electrically connected to the control box 13.

[0025] like Figure 1 , Figure 2 and Figure 4As shown, it also includes a first filter screen 18 and a second filter screen 19. The first filter screen 18 is provided at the air inlet of the vacuum valve 5, and the second filter screen 19 is provided at the air suction port of the defoaming cylinder 2.

[0026] When it is necessary to use this equipment to eliminate epoxy resin bubbles, first place this equipment on a horizontal ground, open the first cover 901 first to add heat transfer oil into the hot oil tank 9, close the first cover 901 after completing the refueling operation, then close all valves on this equipment (feed valve 3, discharge valve 4 and vacuum valve 5), then connect the raw material storage device to the feed port of the defoaming cylinder 2, then connect the control box 13 to the power supply, and then start the heating module 10 and the pump body 12 through the control box 13. The heating module 10 heats the heat transfer oil in the hot oil tank 9 and keeps it at about 60 degrees Celsius. Under the action of the pump body 12, the constant temperature heat transfer oil in the hot oil tank 9 flows from the head of the circulating heat transfer oil pipe 11 to the tail and returns to the hot oil tank 9.

[0027] When the oil temperature reaches 60 degrees, the feed valve 3 is opened, and the epoxy resin enters the defoaming cylinder 2 through the feed port. After the feeding is completed, the feed valve 3 is closed. Because the hot oil flows in the circulating heat-conducting oil pipe 11, the circulating heat-conducting oil pipe 11 can heat the epoxy resin in the defoaming cylinder 2 and keep it at about 60 degrees, so that the viscosity of the epoxy resin in the defoaming cylinder 2 is reduced, and at the same time, the slow motor 14 is started, and the slow motor 14 drives the stirring rod 15 to slowly stir the epoxy resin in the defoaming cylinder 2, and then the vacuum pump 6 is started to evacuate the defoaming cylinder 2, and at the same time, the vacuum pump 6 is controlled by observing the value of the air pressure detection meter 8, so that the defoaming cylinder 2 is The air pressure in the bubble cylinder 2 is maintained between -0.04MPa and -0.1MPa. The epoxy resin bubbles in the defoaming cylinder 2 will expand and grow under the negative pressure state of the defoaming cylinder 2, and then rise and emerge from the surface of the epoxy resin. At the same time, the constant temperature heating of the heating component reduces the viscosity of the epoxy resin in the defoaming cylinder 2, and the slow stirring of the stirring component enhances the fluidity of the epoxy resin in the defoaming cylinder 2. Therefore, the bubbles in the epoxy resin in the defoaming cylinder 2 can rise faster and emerge from the surface of the epoxy resin, and then be extracted to the outside of the equipment through the vacuum pump 6. At the same time, the second filter 19 can prevent the epoxy resin from being drawn into the vacuum pump 6 and causing the vacuum pump 6 to be blocked.

[0028] After the equipment has been running for 30 minutes, turn off the vacuum pump 6, open the vacuum valve 5, and allow air to enter from the air inlet of the defoaming cylinder 2. The defoaming cylinder 2 is released from the negative pressure state. At the same time, the first filter screen 18 can prevent dust and other impurities from being sucked into the defoaming cylinder 2. Connect the discharge port of the defoaming cylinder 2 to the epoxy resin final product container, open the discharge valve 4, and after waiting for the discharge to be completed, close the discharge valve 4 and the vacuum valve 5.

[0029] After the unloading is completed, if the epoxy resin defoaming operation needs to be carried out again, it is only necessary to open the discharge valve 4 again to unload the material, and then perform defoaming through the above steps; if the epoxy resin defoaming operation is no longer needed, it is only necessary to turn off the heating module 10 and the pump body 12 through the control box 13, disconnect the power supply of the control box 13, and then close all valves (feed valve 3, discharge valve 4, vacuum valve 5), and finally wipe off the dust on the second filter 19 to ensure the normal defoaming operation of the epoxy resin when the equipment is used in the future.

[0030] The heat transfer oil in the hot oil tank 9 will scale due to long-term use, thereby reducing the thermal conductivity, so it needs to be replaced once a year. To replace the heat transfer oil, you only need to open the second cover 902 to drain the old heat transfer oil in the hot oil tank 9, then close the second cover 902, then open the first cover 901, add new heat transfer oil, and after refueling, close the first cover 901.

[0031] The technical principles of the embodiments of the present utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present utility model, and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present utility model. Based on the explanations here, technicians in this field can think of other specific implementation methods of the embodiments of the present utility model without creative work, and these methods will fall within the protection scope of the embodiments of the present utility model.

Claims

1. A bubble elimination device for epoxy resin glue processing, characterized in that: The invention comprises a support frame (1), a defoaming cylinder (2), a feed valve (3), a discharge valve (4), a vacuum valve (5), a vacuum pump (6), an air extraction pipe (7), an air pressure detection gauge (8), a control box (13), a heating component and a stirring component. The support frame (1) is provided with a defoaming cylinder (2) in the middle part, a defoaming cylinder (2) is provided with a suction port on one side of the upper part, a gas inlet on the other side of the upper part, a feed port on the left side of the upper middle part, and a discharge port on the bottom. The feed port of the defoaming cylinder (2) is provided with a feed valve (3). A discharge valve (4) is provided at the discharge port, a vacuum valve (5) is provided at the air inlet, a vacuum pump (6) is fixedly connected to the front side of the support frame (1), an exhaust pipe (7) is connected between the vacuum pump (6) and the exhaust port of the defoaming cylinder (2), an air pressure detection gauge (8) is fixedly connected to the top of the defoaming cylinder (2), a control box (13) is fixedly connected to the front side of the support frame (1), the vacuum pump (6) and the air pressure detection gauge (8) are both electrically connected to the control box (13), a heating component is provided on the right side of the support frame (1), and a stirring component is provided on the inner side of the defoaming cylinder (2).

2. The bubble elimination device for epoxy resin adhesive processing as claimed in claim 1, characterized in that: The heating assembly comprises a hot oil tank (9), a first cover (901), a second cover (902), a heating module (10), a circulating heat-conducting oil pipe (11) and a pump body (12). The hot oil tank (9) is fixedly connected to the right side of the support frame (1). The top of the hot oil tank (9) is provided with an oil inlet, and the right side of the bottom of the hot oil tank (9) is provided with an oil outlet. The hot oil tank (9) is provided with a first cover (901) at the oil inlet, and a second cover (902) at the oil outlet. The hot oil tank (9) is provided with a heating module (10). The defoaming cylinder (2) is provided with a circulating heat-conducting oil pipe (11). The head and tail of the circulating heat-conducting oil pipe (11) are inserted from the right side of the defoaming cylinder (2) and connected to the bottom of the hot oil tank (9). The head of the circulating heat-conducting oil pipe (11) is provided with a pump body (12). The heating module (10) and the pump body (12) are both electrically connected to a control box (13).

3. The bubble elimination device for epoxy resin adhesive processing as claimed in claim 2, characterized in that: The stirring assembly comprises a slow motor (14), a stirring rod (15), a first scraper (16) and a second scraper (17); the slow motor (14) is fixedly connected to the top of the defoaming cylinder (2); the output shaft of the slow motor (14) is inserted into the defoaming cylinder (2); the bottom of the output shaft of the slow motor (14) is connected to the stirring rod (15); the upper part of the stirring rod (15) is fixedly connected to the first scraper (16); the lower part of the stirring rod (15) is fixedly connected to the second scraper (17); and the slow motor (14) is electrically connected to the control box (13).

4. The bubble elimination device for epoxy resin adhesive processing as claimed in claim 3, characterized in that: It also includes a first filter screen (18) and a second filter screen (19). The first filter screen (18) is provided at the air inlet of the vacuum valve (5), and the second filter screen (19) is provided at the air suction port of the defoaming cylinder (2).

5. The bubble elimination device for epoxy resin adhesive processing as claimed in claim 4, characterized in that: An anti-skid pad is provided at the bottom of the support frame (1).

6. The bubble elimination device for epoxy resin adhesive processing as claimed in claim 5, characterized in that: The stirring rods (15) are arranged in a tripod-like manner in a surrounding manner inside the defoaming cylinder (2).

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