Automatic raw material mixing and feeding device for 107 glue production

Abstract

The utility model discloses an automatic raw material mixing and feeding device for 107 glue production, which belongs to the field of 107 glue production and comprises a stirring kettle body for mixing raw materials, a stirring motor penetrating through a kettle cover of the stirring kettle body and a stirring shaft rod positioned in the stirring kettle body. Compared with the prior art, the feeding device has the advantages that the fluorosilicone rubber anti-sticking sleeve is stuck on the inner wall of the feeding hole, fluorosilicone rubber is a rubber material combining a fluorocarbon chain and a silicon carbon chain and has excellent high-temperature resistance and anti-sticking property, and polyvinyl alcohol can be effectively prevented from being stuck to the feeding hole; in order to prevent the fluorosilicone rubber anti-sticking sleeve from falling off, one part of the fluorosilicone rubber anti-sticking sleeve is sleeved on the top surface of the feeding port, the hollow feeding screw cap is screwed on the fluorosilicone rubber anti-sticking sleeve for fixation, and meanwhile, in order to ensure the sealing performance during stirring, the sealing stud is screwed into the central through hole of the hollow feeding screw cap.

Description

Technical Field

[0001] This utility model relates to the field of 107 glue production, specifically to an automated raw material mixing and feeding device for 107 glue production. Background Technology

[0002] 107 glue, also known as "cultural water," is an adhesive formed from a water-based solution or emulsion. Due to its high resistance to moisture, mold, and aging, it is widely used in various industries, such as concrete mixing (to improve concrete viscosity) and electronic component encapsulation (as an insulating and moisture-proof material). The existing production process for 107 glue is as follows:

[0003] Prepare an aqueous solution of sodium hydroxide by dissolving it in water. Heat the water to 70°C, then add polyvinyl alcohol while stirring. Increase the temperature to 90°C and maintain this temperature until completely dissolved. Cool to 80°C and add hydrochloric acid in a thin stream while stirring to adjust the pH to 2. Continue stirring for 20-30 minutes, then add formaldehyde and maintain the temperature at 75-80°C. React for 40-60 minutes. Finally, add a prepared 10% sodium hydroxide solution to neutralize the solution, bringing the pH to 7-8, thus obtaining 107 glue.

[0004] The mixing device used in the production of 107 glue usually consists of a mixing tank body, a mixing motor located on the tank cover, and a mixing shaft. The mixing shaft stirs the raw materials added from the feed port, and the mixing motor is usually a three-phase asynchronous motor with adjustable speed.

[0005] Because polyvinyl alcohol has high viscosity, some raw material inevitably sticks to the inner wall of the feeding port during feeding. As feeding continues for a long time, the amount of raw material stuck to the feeding port will gradually increase, which greatly affects the feeding efficiency. Utility Model Content

[0006] The technical problem this invention aims to solve is that existing automated raw material mixing and feeding devices for 107 glue production suffer from polyvinyl alcohol clogging the feeding port during continuous feeding due to the high viscosity of the raw materials.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an automated raw material mixing and feeding device for 107 glue production, including a mixing tank body for mixing raw materials, a stirring motor passing through the tank cover of the mixing tank body, and a stirring shaft located inside the mixing tank body. A feeding port for adding raw materials is provided on one side of the tank cover of the mixing tank body. A fluorosilicone rubber anti-stick sleeve is provided inside the feeding port, and a hollow feeding screw cap for fixing the fluorosilicone rubber anti-stick sleeve is provided on the outer wall end of the feeding port. A sealing stud is provided above the hollow feeding screw cap to prevent air leakage from the mixing tank body, and the threaded end of the sealing stud passes through the central hole of the hollow feeding screw cap.

[0008] As an improvement, the outer wall of the fluorosilicone rubber anti-stick sleeve is connected to the inner wall of the feed port by high-temperature resistant adhesive.

[0009] As an improvement, the output shaft of the stirring motor and the stirring shaft, as well as the body of the stirring motor and the lid of the stirring vessel body, are all connected by bolts.

[0010] As an improvement, an electromagnetic coil for heating is provided on the bottom surface of the outer wall of the stirring vessel body, and a circulating cooling water pipe located above the electromagnetic coil is provided on the outer wall of the stirring vessel body.

[0011] As an improvement, the outer wall end of the electromagnetic coil is provided with several fixing rods welded to the outer wall of the mixing vessel body, and the outer wall end of the circulating cooling water pipe is provided with a cooling isolation sleeve welded to the outer wall of the mixing vessel body, and the inlet and outlet of the circulating cooling water pipe pass through the cooling isolation sleeve.

[0012] As an improvement, a check valve connected by a thread is provided on the output port on the bottom surface of the mixing vessel body.

[0013] The advantages of this invention compared to the prior art are as follows: This device has a fluorosilicone rubber anti-stick sleeve attached to the inner wall of the feeding port. Fluorosilicone rubber is a rubber material that combines fluorocarbon and silicon-carbon chains, and has excellent high temperature resistance and anti-sticking properties. It can effectively prevent polyvinyl alcohol from sticking to the feeding port and ensure that the feeding port will not be blocked. In order to prevent the fluorosilicone rubber anti-stick sleeve from falling off, a part of the fluorosilicone rubber anti-stick sleeve is put on the top surface of the feeding port and fixed by screwing on the hollow feeding screw cap. At the same time, in order to ensure the sealing during stirring, a sealing stud is screwed into the central through hole of the hollow feeding screw cap. Attached Figure Description

[0014] Figure 1 This is a general structural diagram of an automated raw material mixing and feeding device for the production of 107 glue according to this utility model.

[0015] Figure 2 This is a cross-sectional view of the overall structure of an automated raw material mixing and feeding device for the production of 107 glue according to this utility model.

[0016] Figure 3 This is an exploded view of the overall structure of an automated raw material mixing and feeding device for the production of 107 glue according to this utility model.

[0017] Figure 4 This is a structural diagram of the hollow feeding screw cap of an automated raw material mixing and feeding device for 107 glue production according to this utility model.

[0018] Figure 5 This is a structural diagram of a fluorosilicone rubber anti-stick sleeve for an automated raw material mixing and feeding device for 107 glue production.

[0019] As shown in the figure: 1. Stirring vessel body; 11. Feeding port; 2. Stirring motor; 3. Stirring shaft; 4. Fluorosilicone rubber anti-stick sleeve; 5. Hollow feeding screw cap; 51. Sealing stud; 6. Electromagnetic coil; 61. Fixing rod; 7. Circulating cooling water pipe; 71. Cooling isolation sleeve; 8. Check valve. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] As per the instruction manual Figure 1 , 2 As shown in Figure 3, the current reaction vessel includes a mixing vessel body 1 for mixing raw materials, a stirring motor 2 passing through the vessel cover of the mixing vessel body 1, and a stirring shaft 3 located inside the mixing vessel body 1. In order to facilitate the control of the unloading speed, a check valve 8 connected by threads is provided on the output port on the bottom surface of the mixing vessel body 1. At the same time, in order to facilitate the sealing during production, the output shaft of the stirring motor 2 and the stirring shaft 3, as well as the body of the stirring motor 2 and the vessel cover of the mixing vessel body 1, are all connected by bolts.

[0022] During the production process, in order to facilitate the control of temperature changes in the mixing vessel body 1, an electromagnetic coil 6 for heating is provided on the bottom surface of the outer wall of the mixing vessel body 1. The temperature of the raw materials in the mixing vessel body 1 is increased by electromagnetic induction, making it like an induction cooker. A circulating cooling water pipe 7 is provided on the outer wall of the mixing vessel body 1 above the electromagnetic coil 6 to prevent the temperature from getting too high. In order to facilitate the fixing of the electromagnetic coil 6 and the circulating cooling water pipe 7, several fixing rods 61 welded to the outer wall of the mixing vessel body 1 are provided on the outer wall end of the electromagnetic coil 6. A cooling isolation sleeve 71 welded to the outer wall of the mixing vessel body 1 is provided on the outer wall end of the circulating cooling water pipe 7. The inlet and outlet of the circulating cooling water pipe 7 pass through the cooling isolation sleeve 71, and then the inlet and outlet of the circulating cooling water pipe 7 are connected to the cooling water pipe.

[0023] As per the instruction manual Figure 2 , 3As shown in Figures 4 and 5, to facilitate the addition of materials at any time, a feeding port 11 for adding raw materials is provided on one side of the lid of the mixing vessel body 1. At the same time, to prevent polyvinyl alcohol from clogging the feeding port 11, a fluorosilicone rubber anti-stick sleeve 4 is provided inside the feeding port 11, and the outer wall of the fluorosilicone rubber anti-stick sleeve 4 is connected to the inner wall of the feeding port 11 by a high-temperature resistant adhesive, wherein the high-temperature resistant adhesive is usually epoxy. In order to prevent the fluorosilicone rubber anti-stick sleeve 4 from falling off in the feeding port 11, a hollow feeding screw cap 5 for fixing the fluorosilicone rubber anti-stick sleeve 4 is provided on the outer wall end of the feeding port 11. Similarly, in order to ensure the sealing during mixing, a sealing stud 51 for preventing the mixing vessel from leaking air is provided above the hollow feeding screw cap 5, and the threaded end of the sealing stud 51 passes through the central hole of the hollow feeding screw cap 5.

[0024] In this specific implementation, an aqueous solution of sodium hydroxide is prepared by adding water and then added to the stirring vessel body 1. The electromagnetic coil 6 is then activated to heat the water to 70 degrees Celsius. The stirring shaft 3 is then activated, and polyvinyl alcohol is added through the feeding port 11 during stirring. The temperature is raised to 90 degrees Celsius and maintained until completely dissolved. The temperature is then lowered to 80 degrees Celsius through the circulating cooling water pipe 7. Hydrochloric acid is then added in a thin stream while stirring to adjust the pH to 2. Stirring continues for 20-30 minutes, followed by the addition of formaldehyde, maintaining the temperature at 75-80 degrees Celsius. The reaction is allowed to proceed for 40-60 minutes. Finally, a prepared 10% sodium hydroxide solution is added for neutralization, bringing the pH to 7-8, thus obtaining 107 glue.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An automatic raw material mixing and feeding device for 107 glue production, comprising a mixing raw material stirring kettle body (1), a stirring motor (2) passing through the kettle cover of the stirring kettle body (1), and a stirring shaft rod (3) located inside the stirring kettle body (1), and a feeding opening (11) for adding raw materials is arranged on one side of the kettle cover of the stirring kettle body (1), characterized in that: The inside of the feeding opening (11) is provided with a fluorosilicone rubber anti-sticking sleeve (4), and the outer wall end of the feeding opening (11) is provided with a hollow feeding screw cap (5) for fixing the fluorosilicone rubber anti-sticking sleeve (4), the upper part of the hollow feeding screw cap (5) is provided with a sealing screw post (51) for preventing the stirring kettle from leaking, and the threaded end of the sealing screw post (51) penetrates through the center hole of the hollow feeding screw cap (5). ​ 2. The automatic raw material mixing and feeding device for 107 glue production according to claim 1, characterized in that: The outer wall of the fluorosilicone rubber anti-sticking sleeve (4) is connected with the inner wall of the feeding opening (11) through high-temperature resistant glue.

3. The automatic raw material mixing and feeding device for 107 glue production according to claim 1, characterized in that: The output shaft of the stirring motor (2) is connected with the stirring shaft rod (3), and the body of the stirring motor (2) is connected with the kettle cover of the stirring kettle body (1) through a bolt structure.

4. The automatic raw material mixing and feeding device for 107 glue production according to claim 1, characterized in that: The outer wall bottom surface of the stirring kettle body (1) is provided with an electromagnetic coil (6) for heating, and the outer wall of the stirring kettle body (1) is provided with a circulating cooling water pipe (7) above the electromagnetic coil (6).

5. The automatic raw material mixing and feeding device for 107 glue production according to claim 4, characterized in that: The outer wall end of the electromagnetic coil (6) is provided with a plurality of fixing rods (61) welded on the outer wall of the stirring kettle body (1), the outer wall end of the circulating cooling water pipe (7) is provided with a cooling isolation sleeve (71) welded on the outer wall of the stirring kettle body (1), and the inlet and outlet of the circulating cooling water pipe (7) penetrates through the cooling isolation sleeve (71).

6. The automatic raw material mixing and feeding device for 107 glue production according to claim 1, characterized in that: The output port of the bottom surface of the stirring kettle body (1) is provided with a through-stop valve (8) connected through threads.

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