A high-speed kneader for producing composite materials

Abstract

A high-speed kneader for producing composite materials relates to the field of kneader technology and solves the problem of easy oxidation and performance degradation of composite materials during the kneading process in existing technologies. It includes a tank body, with a feeding tank connected to the bottom of the tank body. A discharge pipe is connected to the lower end of the feeding tank. An inlet pipe and a vacuum pipe are connected to the upper side wall of the tank body. A rotating shaft is coaxially rotatably connected to the tank body. The lower end of the rotating shaft is disposed inside the feeding tank. An air inlet is opened on the bottom end face of the rotating shaft, and multiple air outlets are evenly opened on the top side wall of the rotating shaft. An electric heating element is connected inside the rotating shaft, and multiple mixing blades are connected around the circumference of the rotating shaft. A material receiving plate is provided on the top of the feeding tank, and an air inlet pipe is connected to the side wall of the feeding tank. The beneficial effect is that it can inhibit the contact between materials and oxygen, improving the performance stability of composite materials.

Description

Technical Field

[0001] This utility model relates to the field of kneading machine technology, specifically to a high-speed kneading machine for producing composite materials. Background Technology

[0002] In the production process of composite materials, high-speed kneaders can process raw materials such as resin, fiber, and filler into uniform composite materials.

[0003] Current kneading machines generally have a structure similar to that described in patent application number "CN202022976933.8" for a high-speed kneading machine used in cable material production and processing. This includes a base frame and a baffle. A housing is mounted on top of the base frame, and a motor is installed inside the housing. A rotating shaft is mounted above the motor, and stirring blades are mounted on the outer side of the rotating shaft. A brush mounting plate is mounted on the outer side of the stirring blades, and a cleaning brush is mounted on the outer side of the brush mounting plate. Bolts are installed inside the cleaning brush. The kneading machine body is mounted on top of the housing, and a liquid inlet is located above the kneading machine body. A first sealing cover is mounted on the top of the liquid inlet, and a filter screen is located inside the liquid inlet. A solid inlet is located to the left of the liquid inlet, and a second sealing cover is located above the solid inlet.

[0004] However, during the feeding and discharging process of this kneader, the material is directly exposed to the air, and the friction during the kneading process generates heat, which makes the material prone to oxidation, thereby reducing the performance of the composite material.

[0005] Therefore, this utility model proposes a high-speed kneader for producing composite materials to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a high-speed kneader for producing composite materials, which solves the problem of oxidation and performance degradation that occurs during the kneading process of composite materials in the prior art.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A high-speed kneader for producing composite materials includes a tank body. A feeding tank is connected to the bottom of the tank body, and a discharge pipe, L-shaped, is connected to the lower end of the feeding tank. An inlet pipe and a vacuum pipe are connected to the upper sidewalls of the tank body. A drive motor is connected to the top of the tank body. A rotating shaft is coaxially rotatably connected to the tank body. The drive shaft of the drive motor is coaxially connected to the rotating shaft. The lower end of the rotating shaft is located inside the feeding tank. An air inlet is provided on the bottom end face of the rotating shaft. The top of the rotating shaft... Multiple air outlets are evenly distributed on the side wall, and the air inlet is connected to the air outlet. An electric heating element is connected inside the rotating shaft, and multiple mixing blades are connected around the rotating shaft. A material receiving plate is provided on the top of the feeding tank, and a sliding groove is provided on the material receiving plate corresponding to the rotating shaft. The material receiving plate is longitudinally slidably connected inside the feeding tank. A drive cylinder is connected to the bottom of the material receiving plate, and the drive cylinder is connected to the side wall of the feeding tank. A feeding groove is provided on the inner wall of the feeding tank, and an air inlet pipe is connected to the side wall of the feeding tank.

[0009] Furthermore, a pressure gauge and a pressure relief pipe are connected to the vacuum pipe, and a solenoid valve is connected to the pressure relief pipe. The solenoid valve is electrically connected to the pressure gauge.

[0010] Furthermore, a guide angle is provided at the entrance of the air inlet, and a one-way valve is provided inside the air inlet.

[0011] Furthermore, the top surface of the material receiving tray is cone-shaped.

[0012] Furthermore, all the mixing blades are inclined downwards, with the bottom mixing blades fitting snugly against the material receiving tray, and the ends of the bottom mixing blades are connected to scrapers, which fit snugly against the interior of the tank.

[0013] Furthermore, the tank body includes an upper component and a lower component, the upper component is threadedly connected to the upper end of the lower component, and a sealing strip is provided between the upper component and the lower component; a control box is connected between the drive motor and the upper component, and a temperature sensor is provided on the top inner side of the upper component, and the temperature sensor is connected to the control box.

[0014] Furthermore, the feeding tank and the lower assembly are detachably connected by a clamp; the feeding tank is threadedly connected to the discharge pipe, and a sealing strip is provided between the feeding tank and the discharge pipe.

[0015] In summary, compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model can first evacuate oxygen and then introduce inert gas through the internal channel of the rotating shaft to inhibit the contact between the material and oxygen. Thus, the kneader can achieve high-speed mixing in a closed inert gas environment, which solves the oxidation problem in the kneading process of composite materials and improves the performance stability of composite materials.

[0017] 2. In the mixing process, the temperature sensor on the top of the tank monitors the temperature in real time and feeds the data back to the control box, which automatically adjusts the power of the heating element to avoid accelerated oxidation caused by excessive temperature. The scraper can reduce heat damage caused by material retention.

[0018] 3. The tank body of this utility model adopts a threaded connection between the upper and lower components, and a sealing strip is set between them, thereby improving the sealing performance of the tank body and effectively preventing outside air from entering the tank body. At the same time, the feeding tank and the lower component are detachably connected by clamps, and the feeding tank is threadedly connected to the discharge pipe and a sealing strip is set, which further ensures the sealing performance and makes the maintenance and cleaning of the equipment more convenient.

[0019] 4. The material receiving plate at the top of the feeding tank of this utility model is cone-shaped, so that the material can slide down under the action of gravity, avoiding the accumulation of material on the material receiving plate. The air inlet pipe connected to the side wall of the feeding tank can introduce inert gas, which protects the material in the feeding tank during the material feeding process and further prevents oxidation. At the same time, the inert gas can help the material to be discharged through the L-shaped discharge pipe, avoiding residue. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is the front view of the present invention;

[0022] Figure 3 This is a partial cross-sectional view of the main view of this utility model;

[0023] Figure 4 This is the left view of the present invention;

[0024] In the diagram: 1. Upper component; 2. Lower component; 3. Feed tank; 4. Discharge pipe; 5. Drive motor; 6. Control box; 7. Temperature sensor; 8. Clamp; 9. Feed pipe; 10. Vacuum pipe; 11. Pressure gauge; 12. Pressure relief pipe; 13. Solenoid valve; 14. Rotating shaft; 15. Air inlet; 16. Air outlet; 17. Chamfer; 18. Check valve; 19. Heating element; 20. Mixing blade; 21. Material receiving tray; 22. Drive cylinder; 23. Feed trough; 24. Air inlet pipe; 25. Scraper. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In this application, the terms "upper," "inner," "outer," "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0027] like Figure 1-4 As shown, a high-speed kneader for producing composite materials includes a tank body. A feeding tank 3 is connected to the bottom of the tank body, and a discharge pipe 4, L-shaped, is connected to the lower end of the feeding tank 3. The tank body includes an upper component 1 and a lower component 2. The upper component 1 is threadedly connected to the upper end of the lower component 2, and a sealing strip is provided between the upper component 1 and the lower component 2. A control box 6 is connected between a drive motor 5 and the upper component 1. A temperature sensor 7 is provided on the top inner side of the upper component 1 and connected to the control box 6. The feeding tank 3 and the lower component 2 are detachably connected by a clamp 8. The feeding tank 3 is threadedly connected to the discharge pipe 4, and a sealing strip is provided between the feeding tank 3 and the discharge pipe 4.

[0028] Furthermore, the upper side wall of the tank is connected to a feed pipe 9 and a vacuum pipe 10 respectively; a pressure gauge 11 and a pressure relief pipe 12 are connected to the vacuum pipe 10, and a solenoid valve 13 is connected to the pressure relief pipe 12, and the solenoid valve 13 is electrically connected to the pressure gauge 11.

[0029] Furthermore, a drive motor 5 is connected to the top of the tank, and a rotating shaft 14 is coaxially rotatably connected to the tank. The drive shaft of the drive motor 5 is coaxially connected to the rotating shaft 14. The lower end of the rotating shaft 14 is located inside the feeding tank 3. An air inlet 15 is provided on the bottom end face of the rotating shaft 14, and multiple air outlets 16 are evenly provided on the top side wall of the rotating shaft 14. The air inlet 15 communicates with the air outlets 16. A chamfer 17 is provided at the inlet of the air inlet 15, and a one-way valve 18 is provided inside the air inlet 15. An electric heating element 19 is connected inside the rotating shaft 14, and multiple mixing blades 20 are connected around the circumference of the rotating shaft 14.

[0030] Furthermore, a material receiving plate 21 is provided on the top of the feeding tank 3. The material receiving plate 21 has a sliding groove corresponding to the rotating shaft 14. The material receiving plate 21 is longitudinally slidably connected inside the feeding tank 3. A driving cylinder 22 is connected to the bottom of the material receiving plate 21. The driving cylinder 22 is connected to the side wall of the feeding tank 3. A feeding groove 23 is provided on the inner wall of the feeding tank 3. An air inlet pipe 24 is connected to the side wall of the feeding tank 3.

[0031] Furthermore, the top surface of the material receiving tray 21 is conical. The mixing blades 20 are all inclined downwards, with the bottom mixing blades 20 fitting snugly against the material receiving tray 21. The ends of the bottom mixing blades 20 are all connected to scrapers 25, which fit snugly against the interior of the tank.

[0032] The working process of this utility model is as follows:

[0033] First, the material is injected into the tank through the feed pipe 9 on the side wall of the tank. Then, the vacuum pipe 10 is activated, and the air inside the tank is extracted by an external vacuum pump to maintain a low-oxygen environment inside the tank and prevent the material from oxidizing. The pressure gauge 11 monitors the air pressure inside the tank in real time. Then, inert gas is introduced into the tank through the air inlet 15 at the bottom of the rotating shaft 14. The gas is evenly sprayed out from the air outlet 16 on the top side wall through the internal channel of the rotating shaft 14 to replace the residual air and maintain positive pressure, further inhibiting oxidation.

[0034] The drive motor 5 then drives the rotating shaft 14 to rotate at high speed. The mixing blades 20 on the shaft are inclined downwards, generating strong shearing force to quickly disperse and mix the material. The bottom blades are in contact with the material receiving tray 21, and the end scrapers 25 are in close contact with the inner wall of the tank to prevent material adhesion and to move the material in the middle circumferentially to ensure uniform mixing. During the mixing process, the electric heating element 19 inside the rotating shaft 14 can heat the material. The temperature sensor 7 on the top of the tank monitors the temperature in real time, and the data is fed back to the control box 6, which automatically adjusts the power of the electric heating element 19 to maintain the optimal kneading temperature and avoid high temperature from aggravating oxidation.

[0035] After mixing, the drive cylinder 22 pushes the material receiving plate 21 to slide downwards. Its conical top surface guides the material to fall into the material trough 23 on the inner wall of the feeding tank 3, realizing the separation of the material from the kneading area. The air inlet pipe 24 on the side wall of the feeding tank 3 can introduce inert gas to assist the material to be discharged through the L-shaped discharge pipe 4 to avoid residue. The L-shaped structure can prevent outside air from being sucked back into the tank and maintain the system's airtightness.

[0036] The feeding tank 3 can be quickly disassembled via clamp 8, and the discharge pipe 4 can be disassembled via threads, facilitating the cleaning of residual materials inside and ensuring the purity of materials for the next production. Sealing strips are installed at the connections between the tank body, feeding tank 3, and discharge pipe 4, and these, combined with the threaded / clamped connections, prevent the infiltration of outside air.

Claims

1. A high-speed kneader for producing a composite material, comprising a tank body, characterized in that, The bottom of the tank is connected to a feeding tank (3), and the lower end of the feeding tank (3) is connected to a discharge pipe (4), which is L-shaped. The upper side wall of the tank is connected to a feed pipe (9) and a vacuum pipe (10); A drive motor (5) is connected to the top of the tank. A rotating shaft (14) is coaxially rotatably connected to the tank. The drive shaft of the drive motor (5) is coaxially connected to the rotating shaft (14). The lower end of the rotating shaft (14) is located inside the feeding tank (3). An air inlet (15) is opened on the bottom end face of the rotating shaft (14). A plurality of air outlets (16) are evenly opened on the top side wall of the rotating shaft (14). The air inlet (15) communicates with the air outlets (16). An electric heating element (19) is connected inside the rotating shaft (14). A plurality of mixing blades (20) are connected around the rotating shaft (14) along its periphery. The top of the feeding tank (3) is provided with a material receiving plate (21), and the material receiving plate (21) is provided with a sliding groove corresponding to the rotating shaft (14). The material receiving plate (21) is longitudinally slidably connected inside the feeding tank (3). The bottom of the material receiving plate (21) is connected with a driving cylinder (22), and the driving cylinder (22) is connected to the side wall of the feeding tank (3). The inner wall of the feeding tank (3) is provided with a feeding groove (23), and the side wall of the feeding tank (3) is connected with an air inlet pipe (24).

2. A high-speed kneader for producing a composite material according to claim 1, wherein A pressure gauge (11) and a pressure relief pipe (12) are connected to the vacuum pipe (10). A solenoid valve (13) is connected to the pressure relief pipe (12). The solenoid valve (13) is electrically connected to the pressure gauge (11).

3. A high-speed kneader for producing a composite material according to claim 1, wherein The air inlet (15) has a guide angle (17) at its entrance, and a one-way valve (18) is provided inside the air inlet (15).

4. A high-speed kneader for producing a composite material according to claim 1, wherein The top surface of the material receiving tray (21) is conical.

5. A high-speed kneader for producing a composite material according to claim 4, wherein The mixing blades (20) are all inclined downwards. The bottom mixing blades (20) are attached to the material receiving tray (21). The ends of the bottom mixing blades (20) are all connected to scrapers (25), and the scrapers (25) are attached to the inside of the tank.

6. A high-speed kneader for producing a composite material according to claim 1, wherein The tank includes an upper component (1) and a lower component (2). The upper component (1) is threaded to the upper end of the lower component (2). A sealing strip is provided between the upper component (1) and the lower component (2). A control box (6) is connected between the drive motor (5) and the upper component (1). A temperature sensor (7) is provided on the top inner side of the upper component (1). The temperature sensor (7) is connected to the control box (6).

7. A high-speed kneader for producing a composite material according to claim 6, wherein The feeding tank (3) and the lower assembly (2) are detachably connected by a clamp (8); the feeding tank (3) is threadedly connected to the discharge pipe (4), and a sealing strip is provided between the feeding tank (3) and the discharge pipe (4).

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