An automatic mixing device for producing epoxy resin

Abstract

The utility model discloses an automatic mixing device for epoxy resin production, which belongs to the field of epoxy resin production. The automatic mixing device for epoxy resin production comprises a mixing drum and a feed port and a discharge port arranged on the mixing drum. The mixing drum is sealed, an electromagnetic flow valve is fixedly installed on the feed port, a spiral conveying valve is fixedly installed on the discharge port, a mixing assembly is provided on the mixing drum, a bubble detection mechanism is fixedly installed on the mixing drum, and the bubble detection mechanism comprises a fixed rod fixedly installed on the top of the mixing drum, an ultrasonic probe fixedly installed on the bottom of the fixed rod, and a pulse connector fixedly installed on the top of the mixing drum and electrically connected to the ultrasonic probe. The automatic mixing device for epoxy resin production has a sealed mixing drum design combined with negative pressure exhaust technology, which effectively improves the defoaming effect, does not require the addition of defoaming agents or heating, and ensures the quality of the finished product.

Description

Technical Field

[0001] The utility model relates to the field of epoxy resin production, in particular to an automatic control mixing device for epoxy resin production. Background Art

[0002] Epoxy resin is a high molecular prepolymer, which is characterized by containing two or more epoxy groups in its molecule. These epoxy groups are important characteristics of epoxy resin, and their content directly affects the performance of the resin. Epoxy resin production refers to the process of manufacturing high molecular prepolymers containing two or more epoxy groups.

[0003] Most of the existing stirring and defoaming methods are to add defoaming agents to mix and stir, and use appropriate heating to improve mixing efficiency. However, whether adding defoaming agents or heating auxiliary means, it is easy to add interference factors to the ratio and mixing quality of epoxy resin raw materials, affecting the quality of the finished product.

[0004] Therefore, an automatic mixing device for producing epoxy resin is provided to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model provides an epoxy resin production automatic mixing device, aiming to solve the problem in the background technology that the existing epoxy resin production mixing device needs to add auxiliary materials to remove bubbles or increase the temperature to improve the production efficiency, resulting in low quality of finished products.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an automatic mixing device for producing epoxy resin, comprising a mixing drum and a feed port and a discharge port arranged on the mixing drum.

[0009] In order to ensure production efficiency while improving the quality of finished products, the mixing drum is sealed, an electromagnetic flow valve is fixedly installed on the feed port, a spiral conveying valve is fixedly installed on the discharge port, the mixing drum has a mixing assembly, and a bubble detection mechanism is fixedly installed on the mixing drum.

[0010] The bubble detection mechanism includes a fixed rod fixedly installed at the top of the mixing drum, an ultrasonic probe fixedly installed at the bottom of the fixed rod, and a pulse connector fixedly installed at the top of the mixing drum and electrically connected to the ultrasonic probe, and the pulse connector is connected to an external pulse generator.

[0011] The interior of the mixing drum is connected to an external exhaust device through an exhaust joint; negative pressure is formed by exhausting the mixing drum during the mixing of raw materials so that bubbles rise and burst faster, thereby achieving the purpose of defoaming, without adding defoaming agents or auxiliary means such as heating, thereby ensuring the quality of the finished product.

[0012] Preferably, in order to achieve stirring, the stirring assembly includes a rotating shaft rotatably arranged in the stirring drum, a servo motor fixedly installed at the top of the stirring drum and with an output shaft connected to the top of the rotating shaft, and a stirring blade fixedly installed on the rotating shaft; the rotating shaft is driven to rotate by the servo motor, thereby driving the stirring blade to rotate.

[0013] Preferably, in order to achieve automatic control, the electromagnetic flow valve, the spiral conveying valve, the ultrasonic probe, the servo motor and the external exhaust device are all bidirectionally connected to the external control system; through the centralized control of each component by the control system, the automation of the epoxy resin production process is realized, the intervention of manual operation is reduced, and the production efficiency and stability are improved. Precise flow control and stirring control can optimize the use of energy, reduce energy consumption and production costs, and through precise flow control, stirring control and bubble processing, the uniform mixing and high-quality output of the epoxy resin are ensured, avoiding quality problems that may be caused by human operation.

[0014] Preferably, in order to avoid the occurrence of raw materials sticking to the wall during the stirring process, the side of the rotating shaft is provided with a scraper, and the side of the scraper away from the rotating shaft is in contact with the inner wall of the side of the mixing drum; the design of the scraper can ensure that the raw materials can be mixed evenly during the stirring process, avoiding the adhesion and accumulation of raw materials on the inner wall of the mixing drum, thereby effectively preventing the occurrence of raw materials sticking to the wall.

[0015] Preferably, in order to prevent the stirring blade and the scraper from hitting the probe during the stirring process, the fixed rod is suspended in the area between the stirring blade and the scraper; this design can ensure that the probe is outside the path of the stirring blade and the scraper, so no contact occurs, ensuring that the probe can operate normally.

[0016] Preferably, in order to facilitate installation and fixation of the mixing device, at least three connecting pieces distributed in a ring array are fixedly connected to the side of the mixing drum.

[0017] (III) Beneficial effects

[0018] The epoxy resin production automatic mixing equipment has a sealed mixing drum design combined with negative pressure exhaust technology, which effectively improves the defoaming effect. There is no need to add defoaming agents or heat, ensuring the quality of the finished product.

[0019] The epoxy resin production automatic mixing equipment realizes the automatic control of the epoxy resin production process by integrating the electromagnetic flow valve, spiral conveying valve, stirring component, bubble detection mechanism and external exhaust device, and cooperates with the external control system to centrally control each component, thereby improving production efficiency and stability, reducing energy consumption and production costs, and ensuring uniform mixing and high-quality output of epoxy resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an automatic mixing device for producing epoxy resin;

[0021] Figure 2 This is a schematic diagram of the internal structure of a mixing drum in an automatic mixing device for producing epoxy resin;

[0022] Figure 3 The figure is a flow chart of the control system in an automatic mixing device for producing epoxy resin.

[0023] In the figure:

[0024] 1. Mixing drum; 11. Connecting parts;

[0025] 2. stirring assembly; 21. rotating shaft; 22. servo motor; 23. stirring blade; 24. scraper;

[0026] 3. Feed inlet; 4. Electromagnetic flow valve; 5. Air extraction connector;

[0027] 6. Bubble detection mechanism; 61. Fixing rod; 62. Ultrasonic probe; 63. Pulse connector;

[0028] 7. Feeding port; 8. Screw conveying valve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 3 The utility model provides a technical solution: an automatic mixing device for producing epoxy resin, comprising a mixing drum 1 and a feed port 3 and a discharge port 7 arranged on the mixing drum 1.

[0031] The mixing drum 1 is sealed, an electromagnetic flow valve 4 is fixedly installed on the feed port 3, a spiral conveying valve 8 is fixedly installed on the discharge port 7, a mixing assembly 2 is provided on the mixing drum 1, and a bubble detection mechanism 6 is fixedly installed on the mixing drum 1.

[0032] The bubble detection mechanism 6 includes a fixed rod 61 fixedly installed at the top of the mixing drum 1, an ultrasonic probe 62 fixedly installed at the bottom of the fixed rod 61, and a pulse connector 63 fixedly installed at the top of the mixing drum 1 and electrically connected to the ultrasonic probe 62. The pulse connector 63 is connected to an external pulse generator.

[0033] The interior of the mixing drum 1 is connected to an external air extraction device via an air extraction joint 5 .

[0034] When in use, epoxy resin and its required raw materials are added through the feed port 3, the electromagnetic flow valve 4 ensures that the raw materials enter the mixing drum 1 at the set flow rate, the stirring assembly 2 starts to work, and the epoxy resin and its raw materials in the mixing drum 1 are mixed and stirred to achieve a uniform mixing effect. During the stirring process, the ultrasonic probe 62 of the bubble detection mechanism 6 emits ultrasonic waves into the mixing drum 1 and receives the reflected signal. When there are bubbles in the mixing drum 1, the reflected signal of the ultrasonic wave will change, and this change is transmitted to the external pulse generator through the pulse connector 63 for analysis and processing. If the bubble detection mechanism 6 detects that there are bubbles in the mixing drum 1, the external exhaust device exhausts the mixing drum 1 through the exhaust connector 5 to eliminate the bubbles. When the stirring and bubble treatment are completed, the spiral conveying valve 8 controls the discharge port 7 to open and release the mixed epoxy resin.

[0035] Specifically, the stirring assembly 2 includes a rotating shaft 21 rotatably arranged in the stirring drum 1, a servo motor 22 fixedly installed at the top of the stirring drum 1 and with an output shaft connected to the top of the rotating shaft 21, and a stirring blade 23 fixedly installed on the rotating shaft 21; when the bubble detection mechanism 6 is running, the servo motor 22 drives the rotating shaft 21 to rotate, thereby driving the stirring blade 23 to rotate, and stirring the raw materials in the stirring drum 1.

[0036] Among them, the electromagnetic flow valve 4, the spiral conveying valve 8, the ultrasonic probe 62, the servo motor 22 and the external air extraction device are all bidirectionally connected to the external control system; the bidirectional connection between these control elements and the control system allows the control system to receive feedback signals from each component in real time, and control the components accordingly according to these signals. According to the instructions sent by the control system, the feed flow rate is adjusted to ensure that the raw materials enter the mixing drum 1 according to the set ratio and speed. At the same time, the electromagnetic flow valve 4 feeds back the current flow data to the control system for reference and adjustment by the control system. Under the control of the control system, the feed port 7 is opened or closed according to production needs to control the discharge of the epoxy resin. The spiral conveying valve 8 can also feed back the current opening and closing state and possible fault information to the control system, detect the bubble situation in the mixing drum 1 in real time, and send the detected data to the control system. The control system determines whether it is necessary to start the air extraction device for bubble processing based on these data, receives the stirring instruction sent by the control system, and drives the rotating shaft 21 and the stirring blade 23 for stirring. At the same time, the servo motor 22 can also feed back the current operating state to the control system. Under the control of the control system, according to the detection data of the ultrasonic probe 62, the air extraction operation is started or stopped to eliminate the bubbles in the mixing drum 1.

[0037] Furthermore, a scraper 24 is provided on the side of the rotating shaft 21, and a side of the scraper 24 away from the rotating shaft 21 is in contact with the inner wall of the side of the mixing drum 1; when the servo motor 22 drives the rotating shaft 21 to rotate, the scraper 24 will rotate accordingly, and a side away from the rotating shaft 21 is in close contact with the inner wall of the side of the mixing drum 1, so that the scraper 24 can effectively scrape off the raw materials attached to the inner wall of the mixing drum 1 to prevent the raw materials from sticking to the wall during the mixing process.

[0038] Among them, the fixing rod 61 is suspended in the area between the stirring blade 23 and the scraper 24; this design enables the ultrasonic probe 62 to be located outside the stirring path of the stirring blade 23 and the scraper 24, thereby ensuring the safety during the stirring process and the integrity of the ultrasonic probe 62.

[0039] Furthermore, at least three connectors 11 distributed in a circular array are fixedly connected to the side of the mixing drum 1; during installation, the user can use these connectors 11 to fix the mixing drum 1 to a bracket, a base or other related equipment, thereby ensuring the stability and safety of the mixing equipment during operation.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic mixing device for producing epoxy resin, comprising a mixing drum (1) and a feed inlet (3) and a discharge inlet (7) arranged on the mixing drum (1), characterized in that: The mixing drum (1) is sealed, an electromagnetic flow valve (4) is fixedly mounted on the feed port (3), a screw conveying valve (8) is fixedly mounted on the discharge port (7), a mixing assembly (2) is provided on the mixing drum (1), and a bubble detection mechanism (6) is fixedly mounted on the mixing drum (1); The bubble detection mechanism (6) comprises a fixed rod (61) fixedly mounted on the top end of the mixing drum (1), an ultrasonic probe (62) fixedly mounted on the bottom end of the fixed rod (61), and a pulse connector (63) fixedly mounted on the top end of the mixing drum (1) and electrically connected to the ultrasonic probe (62), wherein the pulse connector (63) is connected to an external pulse generator; The interior of the mixing drum (1) is connected to an external air extraction device via an air extraction joint (5).

2. The automatic mixing equipment for epoxy resin production according to claim 1, characterized in that: The stirring assembly (2) comprises a rotating shaft (21) rotatably arranged in the stirring drum (1), a servo motor (22) fixedly mounted on the top of the stirring drum (1) and having an output shaft connected to the top of the rotating shaft (21), and a stirring blade (23) fixedly mounted on the rotating shaft (21).

3. The automatic mixing equipment for producing epoxy resin according to claim 2, characterized in that: The electromagnetic flow valve (4), the spiral delivery valve (8), the ultrasonic probe (62), the servo motor (22) and the external air extraction device are all bidirectionally connected to an external control system.

4. The automatic mixing equipment for producing epoxy resin according to claim 3, characterized in that: The side surface of the rotating shaft (21) is provided with a scraper (24), and a side of the scraper (24) away from the rotating shaft (21) is in contact with the inner wall of the side surface of the mixing drum (1).

5. The automatic mixing equipment for producing epoxy resin according to claim 4, characterized in that: The fixing rod (61) is suspended in the area between the stirring blade (23) and the scraper (24).

6. The automatic mixing equipment for producing epoxy resin according to claim 5, characterized in that: At least three connecting pieces (11) distributed in a ring array are fixedly connected to the side of the mixing drum (1).

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