Efficient mixing device for producing low-smoke halogen-free flame-retardant cable material

Abstract

The utility model discloses an efficient mixing device for low smoke zero halogen flame retardant cable material production, and relates to the technical field of mixing devices, the efficient mixing device comprises a mixing tank, a stirring shaft is inserted in the mixing tank, a motor is fixed above the mixing tank through a support, the output end of the motor is fixed with the top of the stirring shaft, and the output end of the motor is fixed with the top of the stirring shaft. After the motor works, the stirring assembly is driven by the stirring shaft to rotate, so that materials in the material mixing tank are efficiently mixed, after mixing is completed, a material blocking plate and a blocking plate are matched with a rotating frame and a rotating base through a fixing frame to expose a discharging groove and a cover closing groove after rotating, and the materials in the discharging groove and the cover closing groove can be discharged out of the material mixing tank. When the stirring shaft rotates, the bottom scraping plate can be driven to rotate, so that residual materials at the bottom can be horizontally scraped, and after the residual materials are scraped to the positions of the discharging groove and the cover closing groove, the residual materials can fall out of the discharging groove and the cover closing groove, and the complete discharging effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing devices, in particular to an efficient mixing device for producing low-smoke and halogen-free flame-retardant cable materials. Background Technique

[0002] When mixing low-smoke and halogen-free flame-retardant cable materials, the materials are usually dry materials. Common flame retardants in low-smoke and halogen-free flame-retardant cable materials, such as magnesium hydroxide, aluminum hydroxide, etc., have certain water absorption. If the cable materials are wet before mixing, then these flame retardants may absorb moisture in the air, resulting in the components of the materials reacting with water and foaming or even degrading during subsequent hot melting processing, thereby affecting the performance of the cable materials, such as mechanical properties, heat resistance, and long-term aging resistance.

[0003] The inventor found the following problems in the prior art that have not been well solved during the implementation of this solution: There is a discharge hole on the side at the bottom end of the mixing tank. Although it is more convenient to discharge the materials after the dry material mixing is completed compared to wet materials, when the material level in the tank drops to a relatively low level during discharging, since the bottom of the tank is flat, although the materials at the bottom can be pushed towards the position of the discharge hole by the scraper at the bottom of the mixing and stirring assembly, the rotation of the scraper is a horizontal rotation and not specifically for pushing the materials towards the discharge hole position, resulting in a part of the materials being rotated and pushed back and forth, and it is very difficult to completely discharge the materials from the discharge hole by scraping with the scraper. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an efficient mixing device for producing low-smoke and halogen-free flame-retardant cable materials, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An efficient mixing device for producing low-smoke and halogen-free flame-retardant cable materials, including a mixing tank. A stirring shaft is inserted inside the mixing tank. A motor is fixed above the mixing tank through a bracket. The output end of the motor is fixed to the top of the stirring shaft. One end of the stirring shaft inside the mixing tank is provided with a plurality of stirring components. A number of bottom scraping plates are fixed to the outer wall of the stirring shaft at the position of the inner bottom of the mixing tank. A feeding groove is dug at one end of the inner bottom of the mixing tank. A cover combining groove is dug below the feeding groove in the mixing tank. A baffle plate is embedded inside the feeding groove. A blocking plate is fixed to the bottom of the baffle plate. A fixing frame is fixed to the bottom of the blocking plate. A pressing plate is fixed to one end of the fixing frame away from the blocking plate. A rotating seat is fixed to the bottom end of the outer wall of the mixing tank. A rotating frame is rotatably connected to the rotating seat. An internal thread plate is fixed to the top of the mixing tank at the position of the rotating seat. An adjusting rod is inserted through the internal thread plate. External threads are provided on the outer walls of the top and bottom ends of the adjusting rod. A guiding box is fixed to the bottom periphery of the mixing tank at the position of the baffle plate and the blocking plate.

[0007] Preferably, the outer dimensions of the baffle plate match the inner dimensions of the feeding groove. The blocking plate is located at the inner top of the cover combining groove. The outer dimensions of the blocking plate are smaller than the inner dimensions of the cover combining groove, and the outer dimensions of the blocking plate are larger than the inner dimensions of the feeding groove.

[0008] Preferably, one end of the rotating frame away from the rotating seat is fixedly connected to one end of the fixing frame close to the pressing plate.

[0009] Preferably, a bearing is embedded in the inner bottom of the mixing tank at the position of the stirring shaft. The bottom outer wall of the stirring shaft below the bottom scraping plate is inserted and fixed to the inner wall of the bearing, and the stirring shaft is rotatably connected to the mixing tank through the bearing.

[0010] Preferably, the bottom of the adjusting rod touches the top of the pressing plate.

[0011] Preferably, the adjusting rod is threadedly connected to the inner wall of the internal thread plate through one of the external threads.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1. After the motor works, it drives the stirring components to rotate through the stirring shaft, so as to efficiently mix the materials in the mixing tank. When the mixing is completed, the baffle plate and the blocking plate can expose the feeding groove and the cover combining groove after rotation by using the fixing frame in combination with the rotating frame and the rotating seat, and the materials inside can be discharged from the mixing tank. When the stirring shaft rotates, it will drive the bottom scraping plate to rotate, so that the remaining materials at the bottom can be horizontally scraped. When it is scraped to the position of the feeding groove and the cover combining groove, it will fall out from the feeding groove and the cover combining groove, so as to achieve the effect of complete feeding.

[0014] 2. When it is necessary to mix the materials again, the baffle plate and the blocking plate are blocked by the rotation of the rotating seat and the rotating frame, and then the bottom of the adjusting rod is lowered by rotating it until the external thread at the top of the adjusting rod is threadedly connected with the internal thread plate. The bottom of the adjusting rod can then rest against the top of the pressing plate. When the weight of the material in the mixing tank presses down the baffle plate, the force will be transmitted to the position of the pressing plate and cause it to tilt upward. At this time, the adjusting rod limits and presses it down to keep it level, avoiding the problem of the baffle plate rotating out of the discharge chute, and ensuring the smooth and efficient mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a high-efficiency mixing device for producing low-smoke halogen-free flame-retardant cable materials according to the utility model from a bottom view;

[0016] Figure 2 This is a schematic top view of the structure of a high-efficiency mixing device for producing low-smoke halogen-free flame-retardant cable materials according to the utility model;

[0017] Figure 3 This is a schematic structural diagram of a cross-section of a mixing tank of a high-efficiency mixing device for producing low-smoke, halogen-free, flame-retardant cable materials according to the utility model;

[0018] Figure 4 This is a structural schematic diagram of a high-efficiency mixing device for producing low-smoke halogen-free flame-retardant cable materials according to the utility model when the baffle plate rotates.

[0019] In the figure: 1. Mixing tank; 2. Motor; 3. Stirring shaft; 4. Stirring assembly; 5. Bottom scraper; 6. Bearing; 7. Discharge chute; 8. Cover chute; 9. Material baffle; 10. Blocking plate; 11. Rotating seat; 12. Rotating frame; 13. Fixed frame; 14. Pressing plate; 15. Internal thread plate; 16. Adjusting rod; 17. External thread; 18. Material guide box. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figures 1-4As shown in the figure, an efficient mixing device for the production of low-smoke and halogen-free flame-retardant cable materials includes a mixing tank 1. A stirring shaft 3 is inserted inside the mixing tank 1. Above the mixing tank 1, a motor 2 is fixed through a bracket. The output end of the motor 2 is fixed to the top of the stirring shaft 3. At one end of the stirring shaft 3 located inside the mixing tank 1, a plurality of stirring components 4 are provided. On the outer wall of the stirring shaft 3 at the bottom position inside the mixing tank 1, several bottom scraping plates 5 are fixed. At one end of the inner bottom of the mixing tank 1, a feeding groove 7 is dug. Below the feeding groove 7 in the mixing tank 1, a cover combining groove 8 is dug. Inside the feeding groove 7, a baffle plate 9 is embedded. At the bottom of the baffle plate 9, a plug plate 10 is fixed. At the bottom of the plug plate 10, a fixing frame 13 is fixed. At one end of the fixing frame 13 away from the plug plate 10, a pressing plate 14 is fixed. At the bottom end of the outer wall of the mixing tank 1, a rotating seat 11 is fixed. A rotating frame 12 is rotatably connected to the rotating seat 11. At the top of the mixing tank 1 at the position of the rotating seat 11, an internal thread plate 15 is fixed. An adjusting rod 16 is inserted through the internal thread plate 15. External threads 17 are provided on the outer walls of the top and bottom ends of the adjusting rod 16. At the bottom periphery of the mixing tank 1 at the position of the baffle plate 9 and the plug plate 10, a material guiding box 18 is fixed.

[0022] Specifically, the outer dimensions of the baffle plate 9 match the inner dimensions of the feeding groove 7. The plug plate 10 is located at the inner top of the cover combining groove 8. The outer dimensions of the plug plate 10 are smaller than the inner dimensions of the cover combining groove 8 and larger than the inner dimensions of the feeding groove 7, which facilitates the baffle plate 9 and the plug plate 10 to smoothly rotate into the feeding groove 7 and the cover combining groove 8.

[0023] Specifically, one end of the rotating frame 12 away from the rotating seat 11 is fixedly connected to one end of the fixing frame 13 close to the pressing plate 14, enabling the baffle plate 9 and the plug plate 10 to rotate through the rotating frame 12 and the rotating seat 11.

[0024] Specifically, a bearing 6 is embedded in the inner bottom of the mixing tank 1 at the position of the stirring shaft 3. The outer wall of the bottom of the stirring shaft 3 below the bottom scraping plate 5 is inserted and fixed with the inner wall of the bearing 6, and the stirring shaft 3 is rotatably connected to the mixing tank 1 through the bearing 6, making the rotation of the stirring shaft 3 more stable.

[0025] Specifically, the bottom of the adjusting rod 16 touches the top of the pressing plate 14. The adjusting rod 16 is threadedly connected to the inner wall of the internal thread plate 15 through one of the external threads 17. When the upper external thread 17 is threadedly connected to the internal thread plate 15, the baffle plate 9 is in an open state. This connection can limit the height of the adjusting rod 16 to prevent it from touching the fixing frame 13 and the pressing plate 14. When the lower external thread 17 is threadedly connected to the internal thread plate 15, the adjusting rod 16 can stably press the pressing plate 14, enabling the baffle plate 9 to block the feeding groove 7.

[0026] Working principle: After the motor 2 works, it drives the mixing component 4 to rotate through the mixing shaft 3, so as to efficiently mix the materials in the mixing tank 1. When the mixing is completed, the baffle plate 9 and the plug plate 10 can expose the material discharging groove 7 and the cover combining groove 8 after rotation by using the fixed frame 13 in combination with the rotating frame 12 and the rotating seat 11, and the materials inside can be discharged from the mixing tank 1. When the mixing shaft 3 rotates, it will drive the bottom scraper 5 to rotate, so that the remaining materials at the bottom can be horizontally scraped. When it is scraped to the positions of the material discharging groove 7 and the cover combining groove 8, it will fall out from the material discharging groove 7 and the cover combining groove 8, so as to achieve the effect of complete discharging. When re-mixing is required, the baffle plate 9 and the plug plate 10 are blocked by the rotation of the rotating seat 11 and the rotating frame 12, and then the bottom of the adjusting rod 16 is lowered by the rotation of the adjusting rod 16 until the external thread 17 at the top of the adjusting rod 16 is threadedly connected with the internal thread plate 15. Then the bottom of the adjusting rod 16 can abut against the top of the pressing plate 14. When the weight of the materials in the mixing tank 1 presses down the baffle plate 9, the acting force will be transmitted to the position of the pressing plate 14 and cause it to tilt upward. At this time, the adjusting rod 16 limits and presses it to keep it horizontal, avoiding the problem that the baffle plate 9 rotates out of the material discharging groove 7 and ensuring the smooth progress of efficient mixing.

[0027] The circuits, electronic components and control modules involved are all prior arts, which can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve the improvement of software and methods either.

[0028] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An efficient mixing device for producing low-smoke and halogen-free flame-retardant cable materials, comprising a mixing tank (1), characterized in that: A stirring shaft (3) is inserted inside the mixing tank (1). A motor (2) is fixed above the mixing tank (1) through a bracket. The output end of the motor (2) is fixed to the top of the stirring shaft (3). A plurality of stirring components (4) are arranged at one end of the stirring shaft (3) inside the mixing tank (1). A number of bottom scraping plates (5) are fixed to the outer wall of the stirring shaft (3) at the position of the inner bottom of the mixing tank (1). A feeding groove (7) is dug at one end of the inner bottom of the mixing tank (1). A closing cover groove (8) is dug below the feeding groove (7) of the mixing tank (1). A baffle plate (9) is embedded inside the feeding groove (7). A blocking plate (10) is fixed to the bottom of the baffle plate (9). A fixing frame (13) is fixed to the bottom of the blocking plate (10). A pressing plate (14) is fixed to one end of the fixing frame (13) away from the blocking plate (10). A rotating seat (11) is fixed to the bottom end of the outer wall of the mixing tank (1). A rotating frame (12) is rotatably connected to the rotating seat (11). An internal thread plate (15) is fixed to the top of the mixing tank (1) at the position of the rotating seat (11). An adjusting rod (16) is inserted through the internal thread plate (15). External threads (17) are arranged on the outer walls of the top and bottom ends of the adjusting rod (16). A guiding material box (18) is fixed to the bottom periphery of the mixing tank (1) at the position of the baffle plate (9) and the blocking plate (10).

2. The high-efficiency mixing device for producing low-smoke and halogen-free flame-retardant cable materials according to claim 1, characterized in that: The outer dimensions of the baffle plate (9) match the inner dimensions of the feeding groove (7). The blocking plate (10) is located at the inner top of the closing cover groove (8). The outer dimensions of the blocking plate (10) are smaller than the inner dimensions of the closing cover groove (8), and the outer dimensions of the blocking plate (10) are larger than the inner dimensions of the feeding groove (7).

3. The high-efficiency mixing device for producing low-smoke and halogen-free flame-retardant cable materials according to claim 1, wherein: One end of the rotating frame (12) away from the rotating seat (11) is fixedly connected to one end of the fixing frame (13) close to the pressing plate (14).

4. The high-efficiency mixing device for producing low-smoke and halogen-free flame-retardant cable materials according to claim 1, characterized in that: A bearing (6) is embedded in the inner bottom of the mixing tank (1) at the position of the stirring shaft (3). The outer wall of the bottom of the stirring shaft (3) below the bottom scraping plate (5) is inserted and fixed to the inner wall of the bearing (6), and the stirring shaft (3) is rotatably connected to the mixing tank (1) through the bearing (6).

5. The high-efficiency mixing device for producing low-smoke and halogen-free flame-retardant cable materials according to claim 1, wherein: The bottom of the adjusting rod (16) is in contact with the top of the pressing plate (14).

6. The high-efficiency mixing device for producing low-smoke and halogen-free flame-retardant cable materials according to claim 1, characterized in that: The adjusting rod (16) is threadedly connected to the inner wall of the internal thread plate (15) through one of the external threads (17).

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